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TABLE OF CONTENTS
Item 8. Consolidated Financial Statements and Supplementary Data
PART IV

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)


þ



ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934




For the fiscal year ended December 31, 20182020


OR


o



TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934




For the transition period fromfrom:             to             

Commission File Number: 001-33723

Main Street Capital Corporation

(Exact name of registrant as specified in its charter)

Maryland
(State or other jurisdiction of
of incorporation or organization)

41-2230745
(I.R.S. Employer
Identification No.)


1300 Post Oak Boulevard, 8th8th Floor
Houston, TX
(Address of principal executive offices)

77056


77056
(Zip Code)

(713) 350-6000

(Registrant'sRegistrant’s telephone number including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol

Name of Each Exchange on Which
Registered

Common Stock, par value $0.01 per share

MAIN

New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes o   No þ

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes o   No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes o No o

        Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    þ

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company or an emerging growth company. See the definitions of "large“large accelerated filer," "accelerated” “accelerated filer," "smaller” “smaller reporting company"company” and "emerging“emerging growth company"company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer þ

Accelerated filer o

Non-accelerated filer o

Smaller reporting company o


Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

The aggregate market value of the registrant'sregistrant’s common stock held by non-affiliates of the registrant as of June 30, 2018,2020, was approximately $2,178.0$1,948.5 million based upon the last sale price for the registrant'sregistrant’s common stock on that date.

The number of shares outstanding common shares of the registrantissuer’s common stock as of February 28, 201926, 2021 was 61,847,438.67,963,233.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrants'registrants’ definitive Proxy Statement for its 20192021 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission, are incorporated by reference in this Annual Report on Form 10-K in response to Part III.



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CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements regarding the plans and objectives of management for future operations.operations and which relate to future events or our future performance or financial condition. Any such forward-looking statements may involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by any forward-looking statements. Forward-looking statements, which involve assumptions and describe our future plans, strategies and expectations, are generally identifiable by use of the words "may," "will," "should," "expect," "anticipate," "estimate," "believe," "intend"“may,” “will,” “should,” “expect,” “anticipate,” “estimate,” “believe,” “intend” or "project"“project” or the negative of these words or other variations on these words or comparable terminology. These forward-looking statements are based on assumptions that may be incorrect, and we cannot assure you that the projections included in these forward-looking statements will come to pass. Our actual results could differ materially from those expressed or implied by the forward-looking statements as a result of various factors, including, without limitation, the factors discussed in Item 1A entitled "Risk Factors"“Risk Factors” in Part I of this Annual Report on Form 10-K and elsewhere in this Annual Report on Form 10-K.10-K and in other filings we may make with the Securities and Exchange Comission (“SEC”) from time to time. Other factors that could cause actual results to differ materially include changes in the economy and future changes in laws or regulations and conditions in our operating areas.

We have based the forward-looking statements included in this Annual Report on Form 10-K on information available to us on the date of this Annual Report on Form 10-K, and we assume no obligation to update any such forward-looking statements, unless we are required to do so by applicable law. However, you are advised to refer to any additional disclosures that we may make directly to you or through reports that we in the future may file with the Securities and Exchange Commission ("SEC"),SEC, including subsequent annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

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PART I

Item 1. BusinessBusiness

ORGANIZATION

Main Street Capital Corporation ("MSCC"(“MSCC”) is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM"(“LMM”) companies and debt capital to middle market ("(“Middle Market"Market”) companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop"“one stop” financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

MSCC was formed as a Maryland corporation in March 2007 to operate as an internally managed business development company ("BDC"(“BDC”) under the Investment Company Act of 1940, as amended (the "1940 Act"“1940 Act”). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II"(“MSMF”) and Main Street Capital III, LP ("(“MSC III"III” and, collectively with MSMF, and MSC II, the "Funds"“Funds”), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC"(“SBIC”) by the United States Small Business Administration ("SBA"(“SBA”). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

MSC Adviser I, LLC (the "External“External Investment Manager"Manager”) was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("(“External Parties"Parties”) and receives fee income for such services. MSCC has been granted no-action relief by the SEC to allow the External Investment Manager to


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register as a registered investment adviser under the Investment Advisers Act of 1940, as amended (the "Advisers Act"“Advisers Act”). Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements.

MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC"(“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"“Code”). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"“Taxable Subsidiaries”). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes.

Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our,"“we,” “us,” “our,” the "Company"“Company” and "Main Street"“Main Street” refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

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The following diagram depicts our organizational structure:

GRAPHICGraphic


*
Other Holding Companies includes the Taxable Subsidiaries and other entities formed for operational purposes. Each of these companies is directly or indirectly wholly owned by MSCC.

**
The External Investment Manager is accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary, and is indirectly wholly owned by MSCC.

*

Other Holding Companies includes the Taxable Subsidiaries and other entities formed for operational purposes. Each of these companies is directly or indirectly wholly owned by MSCC.

**

The External Investment Manager is accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary, and is indirectly wholly owned by MSCC.

CORPORATE INFORMATION

Our principal executive offices are located at 1300 Post Oak Boulevard, 8th Floor, Houston, Texas 77056. We maintain a Web site on the Internet atwww.mainstcapital.com. We make available free of charge on our Web site our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. Information contained on our Web site is not incorporated by reference into this Annual Report on Form 10-K, and you should not consider that information to be part of this Annual Report on Form 10-K. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports and other public filings are also available free of charge on the EDGAR Database on the SEC'sSEC’s Web site atwww.sec.gov.

OVERVIEW OF OUR BUSINESS

Our principal investment objective is to maximize our portfolio'sportfolio’s total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments,


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including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our private loan ("(“Private Loan"Loan”) portfolio investments are primarily debt securities in privately held companies whichthat have been originated through strategic relationships with other investment funds on a collaborative basis.basis, and are often referred to in the debt markets as “club deals.” Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company'scompany’s capital structure, from secured loans to equity securities, allows

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us to offer portfolio companies a comprehensive suite of financing options, or a "one stop"“one stop” financing solution. Providing customized, "one stop"“one stop” financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first or second lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

Our other portfolio ("(“Other Portfolio"Portfolio”) investments primarily consist of investments whichthat are not consistent with the typical profiles for our LMM, Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income Fund, Inc., an externally managed, non-listed BDC formerly known as HMS Income Fund, Inc. ("HMS Income"(“MSC Income”). and its other investment advisory clients. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities.

Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes (see "Regulation"“Regulation”). An investor'sinvestor’s return in MSCC will depend, in part, on the Funds'Funds’ investment returns as they are wholly owned subsidiaries of MSCC.


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The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio.Portfolio (as

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defined below). For the years ended December 31, 2020 and 2019, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.3% and 1.4%, respectively.

During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("(“HMS Adviser"Adviser”), which iswas the investment advisor to HMSMSC Income a non-listed BDC,at the time to provide certain investment advisory services to HMS Adviser in exchange for 50% of the 2.0% annual base management fee and 20% incentive fee earned by HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. UnderOn October 30, 2020, after successfully receiving the investment sub-advisory agreement,required approval of the stockholders of MSC Income, we completed a transaction whereby the External Investment Manager is entitledbecame the sole investment adviser and administrator to 50% ofMSC Income pursuant to an Investment Advisory and Administrative Services Agreement (the "Advisory Agreement"). Under the Advisory Agreement, the External Investment Manager earns a 1.75% annual base management fee and a 20% incentive fee in exchange for providing investment advisory services to MSC Income.

In December 2020, the External Investment Manager entered into an Investment Management Agreement with MS Private Loan Fund I, LP, a private investment fund with a strategy to invest in Private Loan portfolio investments (the “Private Loan Fund”), pursuant to which the External Investment Manager provides investment advisory and management services to the Private Loan Fund in exchange for an asset-based fee and certain incentive fees.

The External Investment Manager earns management fees based on the assets of the funds and accounts under management and may earn incentive fees, or a carried interest, based on the performance of the funds and accounts managed. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income earned by HMS Adviser under itsfrom the External Investment Manager. For the years ended December 31, 2020, 2019 and 2018, the total contribution of the External Investment Manager to our net investment income was $9.9 million, $11.7 million and $10.6 million, respectively. The External Investment Manager agreed to waive the historical incentive fees otherwise earned through December 31, 2018. During the year ended December 31, 2020, the External Investment Manager earned $10.7 million in base management fees and no incentive fees compared to $11.1 million of base management fees and $2.0 million in incentive fees in 2019 and $11.6 million of base management fees in 2018 for the investment advisory services provided related to MSC Income.

We have entered into an agreement with HMS Income.the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income and its other clients. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended December 31, 2020, 2019 and 2018 are net of expenses allocated to the External Investment Manager of $7.4 million, $6.7 million and $6.8 million, respectively.

       DuringIn April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMSMSC Income in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. During December 2020, we received an amended exemptive order from the SEC permitting co-investments by us, MSC Income and other funds advised by the External Investment Manager in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made co-investments with MSC Income and in the future intend to continue to make such co-investments with HMSMSC Income, the Private Loan Fund and other funds advised by the External Investment Manager, in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMSus and the External Investment Manager’s advised clients, including MSC Income, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income.such parties. Because the External Investment Manager may receive performance-based fee compensation from HMSfunds advised by the External Investment Manager, including MSC Income and the Private Loan Fund, this may provide itthe Company and the External Investment Manager an incentive to allocate opportunities to HMS Incomeother participating funds instead of us. However, both we and the External Investment Manager have

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policies and procedures in place to manage this conflict.conflict, including oversight by the independent members of our Board of Directors.

RECENT DEVELOPMENTS

In January 2019,2021, we led a new portfolio investment to facilitate the minority recapitalization of Centre Technologies, Inc. ("Centre"), a premier provider of IT hardware, software and service solutions. We, along with our co-investors, partnered with Centre's founder and Chief Executive Officer and management team to facilitate the transaction, with us funding $18.1issued $300.0 million in a combinationaggregate principal amount of first-lien, senior secured term debt3.00% unsecured notes due July 14, 2026 (the “3.00% Notes”) at an issue price of 99.004%. The total net proceeds from the offering of the 3.00% Notes, resulting from the public issue price and a direct equity investment. Headquartered in Houston, Texas,after underwriting discounts and founded in 2006, Centre has established itself as a mission critical IT solutions providerestimated offering a full suite of solutions including managed and hosted services, value-added sourcing and integration, and project services.expenses payable, were approximately $294.8 million.

       In January 2019, we led a new portfolio investment to facilitate the management buyout of CompareNetworks Inc. ("CompareNetworks"), a leading provider of media, marketing and technology


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solutions that drive revenue for life science and healthcare product manufacturers. We, along with our co-investors, partnered with CompareNetworks' founders and management team to facilitate the transaction, with us funding $10.7 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in South San Francisco, California, and founded in 2000, CompareNetworks provides life scientists, researchers, lab-based professionals, pharmaceutical professionals and healthcare professionals with digital tools and information resources to research, identify and determine which products and technologies to use.

       In January 2019, we fully exited our equity investment in Boss Industries, LLC ("Boss"). Boss markets, designs and manufacturers vehicle-mounted, and portable air compressor and generator systems utilized in municipal and utility services, energy product and industrial services. We realized a gain of approximately $4.0 million on the exit of our equity investment in Boss.

During February 2019,2021, we declared regular monthly dividends of $0.200$0.205 per share for each month of April, May and June 2019.of 2021. These regular monthly dividends equal a total of $0.600$0.615 per share for the second quarter of 2019 and represent a 5.3% increase2021, unchanged from the monthly dividends paid in the second quarter of 2020. Including the monthly dividends declared for the second quarter of 2018. Including the dividends declared for the second quarter of 2019,2021, we will have paid $25.420$30.830 per share in cumulative dividends since our October 2007 initial public offering.

BUSINESS STRATEGIES

Our principal investment objective is to maximize our portfolio'sportfolio’s total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective:

      Deliver Customized Financing Solutions in the Lower Middle Market. We offer LMM portfolio companies customized debt and equity financing solutions that are tailored to the facts and circumstances of each situation. We believe our ability to provide a broad range of customized financing solutions to LMM companies sets us apart from other capital providers that focus on providing a limited number of financing solutions. Our ability to invest across a company's capital structure, from senior secured loans to subordinated debt to equity securities, allows us to offer LMM portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution.

      Focus on Established Companies. We generally invest in companies with established market positions, experienced management teams and proven revenue streams. We believe that those companies generally possess better risk-adjusted return profiles than newer companies that are building their management teams or are in the early stages of building a revenue base. We also believe that established companies in our targeted size range also generally provide opportunities for capital appreciation.

      Leverage the Skills and Experience of Our Investment Team. Our investment team has significant experience in lending to and investing in LMM and Middle Market companies. The members of our investment team have broad investment backgrounds, with prior experience at private investment funds, investment banks and other financial services companies and currently include seven certified public accountants and three Chartered Financial Analyst® charter holders. The expertise of our investment team in analyzing, valuing, structuring, negotiating and closing transactions should provide us with competitive advantages by allowing us to consider customized financing solutions and non-traditional or complex structures for our portfolio companies. Also, the reputation of our investment team has and should continue to enable us to generate additional revenue in the form of management and incentive fees in connection with us providing advisory services to other investment funds.

      Invest Across Multiple Companies, Industries, Regions and End Markets. We seek to maintain a portfolio of investments that is appropriately balanced among various companies, industries, geographic regions and end markets. This portfolio balance is intended to mitigate the potential effects of negative economic events for particular companies, regions, industries and end markets.
Deliver Customized Financing Solutions in the Lower Middle Market. We offer LMM portfolio companies customized debt and equity financing solutions that are tailored to the facts and circumstances of each situation. We believe our ability to provide a broad range of customized financing solutions to LMM companies sets us apart from other capital providers that focus on providing a limited number of financing solutions. Our ability to invest across a company’s capital structure, from senior secured loans to subordinated debt to equity securities, allows us to offer LMM portfolio companies a comprehensive suite of financing options, or a “one stop” financing solution.
Focus on Established Companies. We generally invest in companies with established market positions, experienced management teams and proven revenue streams. We believe that those companies generally possess better risk-adjusted return profiles than newer companies that are building their management teams or are in the early stages of building a revenue base. We also believe that established companies in our targeted size range also generally provide opportunities for capital appreciation.
Leverage the Skills and Experience of Our Investment Team. Our investment team has significant experience in lending to and investing in LMM and Middle Market companies. The members of our investment team have broad investment backgrounds, with prior experience at private investment funds, investment banks and other financial services companies and currently include seven certified public accountants and two Chartered Financial Analyst® charter holders. The expertise of our investment team in analyzing, valuing, structuring, negotiating and closing transactions should provide us with competitive advantages by allowing us to consider customized financing solutions and non-traditional or complex structures for our portfolio companies. Also, the reputation of our investment team has and should continue to enable us to generate additional revenue in the form of management and incentive fees in connection with us providing advisory services to other investment funds.
Invest Across Multiple Companies, Industries, Regions and End Markets. We seek to maintain a portfolio of investments that is appropriately balanced among various companies, industries, geographic regions and end markets. This portfolio balance is intended to mitigate the potential effects of negative economic events for particular companies, regions, industries and end markets.

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Capitalize on Strong Transaction Sourcing Network. Our investment team seeks to leverage its extensive network of referral sources for portfolio company investments. We have developed a reputation in our marketplace as a responsive, efficient and reliable source of financing, which has created a growing stream of proprietary deal flow for us.
Grow our Asset Management Business. Our asset management business provides us with a recurring source of income, additional income diversification from sources of income directly tied to invested capital and the opportunity for greater shareholder returns through the utilization of our existing investment expertise, strong historical track record and favorable reputation.  We seek to grow our asset management business within our internally managed BDC structure in order to increase the value of this unique benefit to our stakeholders.  We expect such growth to come organically through the expansion of the investment capital that we manage for third parties and the potential extension of our asset management business to new investment strategies, and potentially through mergers and acquisition activities.
Benefit from Lower, Fixed, Long-Term Cost of Capital. The SBIC licenses held by the Funds have allowed them to issue SBA-guaranteed debentures. SBA-guaranteed debentures carry long-term fixed interest rates that are generally lower than interest rates on comparable bank loans and other debt. Because lower-cost SBA leverage is, and will continue to be, a significant part of our capital base through the Funds, our relative cost of debt capital should be lower than many of our competitors. In addition, the SBIC leverage that we receive through the Funds represents a stable, long-term component of our capital structure with proper matching of duration and cost compared to our LMM portfolio investments. We also maintain an investment grade rating from Standard & Poor’s Ratings Services which provides us the opportunity and flexibility to obtain additional, attractive long-term financing options to supplement our capital structure, including the unsecured notes with fixed interest rates we issued in 2017, 2019, 2020 and 2021.

INVESTMENT CRITERIA

Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments:

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Table of each LMM portfolio company to have meaningful equity ownership in the portfolio company to better align our respective economic interests. We believe management teams with these attributes are more likely to manage the companies in a manner that both protects our debt investment and enhances the value of our equity investment.

Established Companies with Positive Cash Flow. We seek to invest in established companies with sound historical financial performance. We typically focus on LMM companies that have historically generated EBITDA of $3 million to $20 million and commensurate levels of free cash flow. We also pursue investments in debt securities of Middle Market companies that are generally established companies with sound historical financial performance that are generally larger in size than LMM companies. We generally do not invest in start-up companies or companies with speculative business plans.

Defensible Competitive Advantages/Favorable Industry Position. We primarily focus on companies having competitive advantages in their respective markets and/or operating in industries with barriers to entry, which may help to protect their market position and profitability.

Exit Alternatives. We exit our debt investments primarily through the repayment of our investment from internally generated cash flow of the portfolio company and/or a refinancing. In addition, we seek to invest in companies whose business models and expected future cash flows may provide alternate methods of repaying our investment, such as through a strategic acquisition by other industry participants or a recapitalization.
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repaying our investment, such as through a strategic acquisition by other industry participants or a recapitalization.

INVESTMENT PORTFOLIO

The Investment Portfolio,“Investment Portfolio”, as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and theour investment in the External Investment Manager. Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM


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companies based in the United States. Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments that we originate on a collaborative basis with other investment funds, and are often referred to in the debt markets as "club“club deals." Our Other Portfolio investments primarily consist of investments whichthat are not consistent with the typical profiles for our LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

    Debt Investments

Historically, we have made LMM debt investments principally in the form of single tranche debt. Single tranche debt financing involves issuing one debt security that blends the risk and return profiles of both first lien secured and subordinated debt. We believe that single tranche debt is more appropriate for many LMM companies given their size in order to reduce structural complexity and potential conflicts among creditors.

Our LMM debt investments generally have a term of five to seven years from the original investment date, with limited required amortization prior to maturity, and provide for monthly or quarterly payment of interest at interest rates generally between 10% and 14% per annum, payable currently in cash. Interest rate terms can include either fixed or floating rate terms. In addition, certain LMM debt investments may have a form of interest that is not paid currently but is accrued and added to the loan balance and paid at maturity. We refer to this form of interest as payment-in-kind, or PIK, interest. We typically structure our LMM debt investments with the maximum seniority and collateral that we can reasonably obtain while seeking to achieve our total return target. In most cases, our LMM debt investment will be collateralized by a first priority lien on substantially all the assets of the portfolio company. In addition to seeking a senior lien position in the capital structure of our LMM portfolio companies, we seek to limit the downside potential of our LMM debt investments by negotiating covenants that are designed to protect our LMM debt investments while affording our portfolio companies as much flexibility in managing their businesses as is reasonable. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control or change of management provisions, key-man life insurance, guarantees, equity pledges, personal guaranties, where appropriate, and put rights. In addition, we typically seek board representation or observation rights in all of our LMM portfolio companies. Interest rate terms can include either fixed or floating rate terms.

While we will continue to focus our LMM debt investments primarily on single tranche debt investments, we also anticipate structuring some of our debt investments as mezzanine loans. We anticipateexpect that these mezzanine loans will be primarily junior secured or unsecured, subordinated loans that provide for relatively high interest rates, payable currently in cash, thatand will provide us with significant interest income plusincome. We also anticipate that these mezzanine loans will afford us the additional opportunity for income and gains through PIK interest and equity warrants and other similar equity instruments issued in conjunction with these mezzanine loans. These loans typically will have interest-only payments in the early years, with amortization of principal deferred to the later years of the mezzanine loan term. Typically, our mezzanine loans will have maturities of three to five years. We will generally target interest rates of 12% to 14%, payable currently in cash, for our mezzanine loan investments with higher targeted total returns from equity warrants or PIK interest.

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We also pursue debt investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct investments or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date. The debt investments in our Middle Market portfolio have rights and protections that are similar to those in our LMM debt investments, which may include affirmative


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and negative covenants, default penalties, lien protection, change of control provisions, guarantees and equity pledges. The Middle Market debt investments generally have floating interest rates at the London Interbank Offered Rate ("LIBOR"(“LIBOR”) plus a margin, and are typically subject to LIBOR floors.

Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments which have been originated through strategic relationships with other investment funds on a collaborative basis. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien and typically have a term of between three and seven years from the original investment date.

    Warrants

In connection with our debt investments, we occasionally receive equity warrants to establish or increase our equity interest in the portfolio company. Warrants we receive in connection with a debt investment typically require only a nominal cost to exercise, and thus, as a portfolio company appreciates in value, we may achieve additional investment return from this equity interest. We typically structure the warrants to provide provisions protecting our rights as a minority-interest holder, as well as secured or unsecured put rights, or rights to sell such securities back to the portfolio company, upon the occurrence of specified events. In certain cases, we also may obtain registration rights in connection with these equity interests, which may include demand and "piggyback"“piggyback” registration rights.

    Direct Equity Investments

We also will seek to make direct equity investments in situations where it is appropriate to align our interests with key management and stockholders of our LMM portfolio companies, and to allow for participation in the appreciation in the equity values of our LMM portfolio companies. We usually make our direct equity investments in connection with debt investments in our LMM portfolio companies. In addition, we may have both equity warrants and direct equity positions in some of our LMM portfolio companies. We seek to maintain fully diluted equity positions in our LMM portfolio companies of 5% to 50%, and may have controlling equity interests in some instances. We have a value orientation toward our direct equity investments and have traditionally been able to purchase our equity investments at reasonable valuations.

INVESTMENT PROCESS

Our management team'steam’s investment committee is responsible for all aspects of our LMM investment process.processes. The current members of our investment committee are Dwayne L. Hyzak, our Chief Executive Officer, and Senior Managing Director, David Magdol, our President and Chief Investment Officer, and Senior Managing Director, Vincent D. Foster, our Executive Chairman,Chairman.

The investment processes for LMM and Curtis L. Hartman, our Vice-Chairman, Chief Credit Officer and Senior Managing Director.

       Our management team's credit committee is responsible for all aspects of our Middle Market portfolio investments are outlined below. The investment process. The current members of our credit committee are Messrs. Hyzak, Foster, Hartman and Nicholas T. Meserve, Managing Director of our Middle Market investment team.

       Investment process responsibilityprocesses for each Private Loan portfolio investment is delegated to either the investment committee or the credit committee based upon the nature of the investment and the manner in which it was originated. Similarly, the investment processes for each Private Loan portfolio investment,investments, from origination to close and to eventual exit, will follow the processes for our LMM portfolio investments or our Middle Market portfolio investments as outlined below, or a combination thereof.

Our investment strategy involves a "team"“team” approach, whereby potential transactions are screened by several members of our investment team before being presented to the investment committee or the credit


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committee, as applicable.committee. Our investment committee and credit committee each meetmeets on an as neededas-needed basis depending on transaction volume. We generally categorize our investment process into seven distinct stages:

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    Deal Generation/Origination

    Deal generation and origination is maximized through long-standing and extensive relationships with industry contacts, brokers, commercial and investment bankers, entrepreneurs, service providers such as lawyers, financial advisors and accountants, and current and former portfolio companies and investors. Our investment team has focused its deal generation and origination efforts on LMM and Middle Market companies, and we have developed a reputation as a knowledgeable, reliable and active source of capital and assistance in these markets.

    During the screening process, if a transaction initially meets our investment criteria, we will perform preliminary due diligence, taking into consideration some or all of the following information:

    a comprehensive financial model based on quantitative analysis of historical financial performance, projections and pro forma adjustments to determine the estimated internal rate of return;
    a brief industry and market analysis;
    direct industry expertise imported from other portfolio companies or investors;
    preliminary qualitative analysis of the management team’s competencies and backgrounds;
    potential investment structures and pricing terms; and
    regulatory compliance.

    Upon successful screening of a proposed LMM transaction, the investment team makes a recommendation to our investment committee. If our investment committee concurs with moving forward on the proposed LMM transaction, we typically issue a non-binding term sheet to the company. For Middle Market portfolio investments, the initial term sheet is typically issued by the borrower, through the syndicating bank, and is screened by the investment team which makes a recommendation to our creditinvestment committee.

    For proposed LMM transactions, the non-binding term sheet will include the key economic terms based upon our analysis performed during the screening process, as well as a proposed timeline and our qualitative expectation for the transaction. While the term sheet for LMM investments is non-binding, we typically receive an expense deposit in order to move the transaction to the due diligence phase. Upon execution of a term sheet, we begin our formal due diligence process.

    For proposed Middle Market transactions, the initial term sheet will include key economic terms and other conditions proposed by the borrower and its representatives and the proposed timeline for the investment, which are reviewed by our investment team to determine if such terms and conditions are in agreement with our investment objectives.

    Due diligence on a proposed LMM investment is performed by a minimum of twothree of our investment professionals, whom we refer to collectively as the investment team, and certain external resources, who together conduct due diligence to understand the relationships among the prospective portfolio company's


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    company’s business plan, operations and financial performance. Our LMM due diligence review includes some or all of the following:

        site visits with management and key personnel;

        detailed review
        site visits with management and key personnel;

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    operational reviews and analysis;

    interviews with customers and suppliers;

    detailed evaluation of company management, including background checks;

    review of material contracts;

    in-depth industry, market and strategy analysis;

    regulatory compliance analysis; and

    review by legal, environmental or other consultants, if applicable.
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    detailed review of historical and projected financial statements;
    operational reviews and analysis;
    interviews with customers and suppliers;
    detailed evaluation of company management, including background checks;
    review of material contracts;
    in-depth industry, market and strategy analysis;
    regulatory compliance analysis; and
    review by legal, environmental or other consultants, if applicable.

    Due diligence on a proposed Middle Market investment is generally performed on materials and information obtained from certain external resources and assessed internally by a minimum of two of our investment professionals, who work to understand the relationships among the prospective portfolio company'scompany’s business plan, operations and financial performance using the accumulated due diligence information. Our Middle Market due diligence review includes some or all of the following:

    detailed review of historical and projected financial statements;
    in-depth industry, market, operational and strategy analysis;
    regulatory compliance analysis; and
    detailed review of the company’s management team and their capabilities.

    During the due diligence process, significant attention is given to sensitivity analyses and how the company might be expected to perform given downside, base-case and upside scenarios. In certain cases, we may decide not to make an investment based on the results of the diligence process.

    Upon completion of a satisfactory due diligence review of a proposed LMM portfolio investment, the investment team presents the findings and a recommendation to our investment committee. The presentation contains information which can include, but is not limited to, the following:

    company history and overview;
    transaction overview, history and rationale, including an analysis of transaction strengths and risks;
    analysis of key customers and suppliers and key contracts;
    a working capital analysis;
    an analysis of the company’s business strategy;
    a management and key equity investor background check and assessment;

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        an analysis of historical financial results and key financial ratios;

        sensitivities to management's financial projections;

        regulatory compliance analysis findings; and

        detailed reconciliations of historical to pro forma results.
    third-party accounting, legal, environmental or other due diligence findings;
    investment structure and expected returns;
    anticipated sources of repayment and potential exit strategies;
    pro forma capitalization and ownership;
    an analysis of historical financial results and key financial ratios;
    sensitivities to management’s financial projections;
    regulatory compliance analysis findings; and
    detailed reconciliations of historical to pro forma results.

    Upon completion of a satisfactory due diligence review of a proposed Middle Market portfolio investment, the investment team presents the findings and a recommendation to our creditinvestment committee. The presentation contains information which can include, but is not limited to, the following:

    company history and overview;
    transaction overview, history and rationale, including an analysis of transaction strengths and risks;
    analysis of key customers and suppliers;
    an analysis of the company’s business strategy;
    investment structure and expected returns;
    anticipated sources of repayment and potential exit strategies;
    pro forma capitalization and ownership;
    regulatory compliance analysis findings; and
    an analysis of historical financial results and key financial ratios.

    If any adjustments to the transaction terms or structures are proposed by the investment committee, or credit committee, as applicable, such changes are made and applicable analyses are updated prior to approval of the transaction. Approval for the transaction must be made by the affirmative vote from a majority of the members of the investment committee, or credit committee, as applicable, with the committee member managing the transaction, if any, abstaining from the vote. Upon receipt of transaction approval, the investment team will re-confirm regulatory compliance, process and finalize all required legal documents, and fund the investment.

    We continuously monitor the status and progress of the portfolio companies. We generally offer managerial assistance to our portfolio companies, giving them access to our investment experience, direct industry expertise and contacts. The same investment team that was involved in the investment process will continue its involvement in the portfolio company post-investment. This provides for continuity of knowledge and allows the investment team to maintain a strong business relationship with key management of our portfolio companies for post-investment assistance and monitoring purposes.

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    As part of the monitoring process of LMM portfolio investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods and year, review financial projections, meet and discuss issues or opportunities with management, attend board meetings and review all compliance certificates and covenants. While we maintain limited involvement in the ordinary course operations of our LMM portfolio companies, we maintain a higher level of involvement in non-ordinary course financing or strategic activities and any non-performing scenarios. We also monitor the performance of our Middle Market portfolio investments; however, due to the larger size and higher sophistication level of these Middle Market companies in comparison to our LMM portfolio companies, it is not necessary or practical to have as much direct management interface.

    We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including, but not limited to, each investment'sinvestment’s expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company'scompany’s future outlook and other factors that are deemed to be significant to the portfolio company.


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    While we generally exit most investments through the refinancing or repayment of our debt and redemption or sale of our equity positions, we typically assist our LMM portfolio companies in developing and planning exit opportunities, including any sale or merger of our portfolio companies. We may also assist in the structure, timing, execution and transition of the exit strategy. The refinancing or repayment of Middle Market debt investments typically does not require our assistance due to the additional resources available to these larger, Middle Market companies.

    DETERMINATION OF NET ASSET VALUE AND INVESTMENT PORTFOLIO VALUATION PROCESS

    We determine the net asset value per share of our common stock on a quarterly basis. The net asset value per share is equal to our total assets minus total liabilities divided by the total number of shares of common stock outstanding.

    We are required to report our investments at fair value. As a result, the most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We follow the provisions of the Financial Accounting Standards Board Accounting Standards Codification ("ASC"(“ASC”) 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

    We determine in good faith the fair value of our Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by our Board of Directors and in accordance with the 1940 Act. Our valuation policies and processes are intended to provide a consistent basis for determining the fair value of our Investment Portfolio. See "Note“Note B.1. — Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

    Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

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    As described below, we undertake a multi-step valuation process each quarter in connection with determining the fair value of our investments, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio and our valuation procedures, consistent with 1940 Act requirements. In addition, the Audit Committee of our Board of Directors periodically evaluates the performance and methodologies of the financial advisory services firm that we consult in connection with valuing our LMM and Private Loan portfolio company investments.

    Our quarterly valuation process begins with each LMM and Private Loan portfolio company investment being initially valued by the investment team responsible for monitoring the portfolio investment;
    The fair value determination for our Middle Market and Other Portfolio debt and equity investments and our investment in the External Investment Manager consists of unobservable and observable inputs which are initially reviewed by the investment professionals responsible for monitoring the portfolio investment;
    Preliminary valuation conclusions are then reviewed by and discussed with senior management, and the investment team considers and assesses, as appropriate, any changes that may be required to the preliminary valuations to address any comments provided by senior management;
    A nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the determinations of the fair value for our LMM and Private Loan portfolio companies;
    The Audit Committee of our Board of Directors reviews management’s valuations, and the investment team and senior management consider and assess, as appropriate, any changes that may be required to management’s valuations to address any comments provided by the Audit Committee; and
    The Board of Directors assesses the valuations and ultimately approves the fair value of each investment in our portfolio in good faith.

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          which are initially reviewed by the investment professionals responsible for monitoring the portfolio investment;

        Preliminary valuation conclusions are then reviewed by and discussed with senior management, and the investment team considers and assesses, as appropriate, any changes that may be required to the preliminary valuations to address any comments provided by senior management;

        A nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the Company's determinations of the fair value for its LMM and Private Loan portfolio companies;

        The Audit Committee of our Board of Directors reviews management's valuations, and the investment team and senior management consider and assess, as appropriate, any changes that may be required to management's valuations to address any comments provided by the Audit Committee; and

        The Board of Directors assesses the valuations and ultimately approves the fair value of each investment in our portfolio in good faith.

    Determination of fair value involves subjective judgments and estimates. The notes to our consolidated financial statements refer to the uncertainty with respect to the possible effect of such valuations, and any change in such valuations, on our financial results and financial condition.

    COMPETITION

    We compete for investments with a number of investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of financing. Many of the entities that compete with us are larger and have more resources available to them. We believe we are able to be competitive with these entities primarily on the basis of our focus toward the underserved LMM, the experience and contacts of our management team, our responsive and efficient investment analysis and decision-making processes, our comprehensive suite of customized financing solutions and the investment terms we offer.

    We believe that some of our competitors make senior secured loans, junior secured loans and subordinated debt investments with interest rates and returns that are comparable to or lower than the rates and returns that we target. Therefore, we do not seek to compete primarily on the interest rates and returns that we offer to potential portfolio companies. For additional information concerning the competitive risks we face, see "Risk“Risk Factors — Risks Relating to Our Business and Structure — We may face increasing competition for investment opportunities."

    EMPLOYEESHUMAN CAPITAL

    Our employees are vital to our success as a principal investment firm. As a human-capital intensive business, the long-term success of our company depends on our people. We strive to attract, develop and retain our employees by

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    offering unique employment opportunities, superior advancement and promotion opportunities, attractive compensation and benefit structures and a close-knit culture. The departure of our key investment and other personnel could cause our operating results to suffer.

    Our LMM business segment depends heavily on the business owners and management teams of our portfolio companies and their respective employees, contractors and service providers. In our investment process for LMM portfolio investments, the analysis of these individuals is a critical part of our overall investment underwriting process and as a result we carefully review the qualifications and experience of the portfolio company’s business owners and management team and their employment practices. We strive to partner with business owners and management teams whose business practices reflect our core values.

    We strive to recruit talented and driven individuals who share our values. We have competitive programs dedicated to attracting and retaining new talent and enhancing the skills of our employees. Our recruiting efforts utilize strong relationships with a variety of sources from which we recruit. Among other opportunities, we offer selected students investment analyst internships, which are expected to lead to permanent roles for high performing and high potential interns. Through our internship program, individuals who want to become investment analysts have the opportunity to see the full investment process from origination to closing, as well as post-closing portfolio management activities. We routinely recruit from within, promoting current employees who have shown the technical ability, attitude, interest and the initiative to take on greater responsibility.

    We have designed a compensation structure, including an array of benefit plans and programs, that we believe is attractive to our current and prospective employees. We also offer formal and informal training and mentorship programs that provide employees with access to senior level executives. Through our annual goal setting and performance review processes, our employees are annually evaluated by supervisors and our senior management team to ensure employees continue to develop and advance as expected. We are committed to having a diverse workforce, and an inclusive work environment is a natural extension of our culture. We also maintain a Women’s Initiative that provides employees with opportunities to network internally at MSCC and externally with other women in the financial services industry. Our employees have access to several programs designed to enable our employees to balance work, family and family-related situations including flexible working arrangements and parental leave for birth and adoption placement. We are committed to creating and maintaining an atmosphere where all employees feel welcomed, valued, respected and heard so that they feel motivated and encouraged to contribute fully to their careers, our company and our communities.

    We seek to maintain a close-knit culture, which we believe is an important factor in employee retention, which is reinforced by our Community Building Committee. Our Community Building Committee, which is composed of a substantial cross section of employees across our organization, develops programs and initiatives that promote an open and inclusive atmosphere and encourage employee outreach with our community, in each case based upon feedback received from our employees. Recent initiatives generated by our Community Building Committee include a volunteer time-off program, a matching donation policy and partnerships with local charitable organizations. We encourage you to visit our website for more information about charitable organizations receiving our ongoing support. Nothing on our website, however, shall be deemed incorporated by reference into this Annual Report on Form 10-K.

    We monitor and evaluate various turnover and attrition metrics throughout our management team. Our annualized voluntary turnover is relatively low, a record which we attribute to our strong corporate culture, commitment to career development and attractive compensation and benefit programs.

    In addition to our normal prioritization of the health and safety of our employees, during 2020, to address the specific safety and health matters of our workforce in response to the COVID-19 pandemic, we implemented the following, among other steps:

    Temporarily closing our offices and establishing new safety protocols and procedures;
    Maintaining regular communication regarding the impacts of the pandemic on our team members and operations;

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    Developing and distributing return-to-office guidelines to ensure the safe return of employees to our office;
    Providing daily temperature checks and symptom screening and requiring those who are infected or exposed to the virus to quarantine in accordance with public health guidelines;
    Enhanced cleaning protocols;
    Establishing physical distancing procedures, modifying workspaces, and providing personal protective equipment and cleaning supplies for employees working onsite; and
    Creating and refining protocols to address actual and suspected COVID-19 cases and potential exposure of our employees and our business partners.

    As of December 31, 2018,2020, we had 66 employees. Theseapproximately 76 employees, include48 of whom we characterize as investment and portfolio management professionals, and the others include operations professionals and administrative staff. None of our employees are represented by a collective bargaining agreement. As necessary, we will hire additional investment professionals and administrative personnel. All of our employees are located in our Houston, Texas office.

    REGULATION

    We have elected to be regulated as a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their affiliates, principal underwriters and affiliates of those affiliates or underwriters. The 1940 Act requires that a majority of the members of the board of directors of a BDC be persons other than "interested“interested persons," as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to cease to be, or to withdraw our election as, a BDC unless approved by a majority of our outstanding voting securities.


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    The 1940 Act defines "a“a majority of the outstanding voting securities"securities” as the lesser of (i) 67% or more of the voting securities present at a meeting if the holders of more than 50% of our outstanding voting securities are present or represented by proxy or (ii) more than 50% of our outstanding voting securities.

      Qualifying Assets

    Under the 1940 Act, a BDC may not acquire any asset other than assets of the type listed in Section 55(a) of the 1940 Act, which are referred to as qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company'scompany’s total assets. The principal categories of qualifying assets relevant to our business are any of the following:

      (1)
      (1)Securities purchased in transactions not involving any public offering from the issuer of such securities, which issuer (subject to certain limited exceptions) is an eligible portfolio company (as defined below), or from any person who is, or has been during the preceding 13 months, an affiliated person of an eligible portfolio company, or from any other person, subject to such rules as may be prescribed by the SEC.
      (2)Securities of any eligible portfolio company that we control.
      (3)Securities purchased in a private transaction from a U.S. issuer that is not an investment company or from an affiliated person of the issuer, or in transactions incident thereto, if the issuer is in bankruptcy and subject to reorganization or if the issuer, immediately prior to the purchase of its securities was unable to meet its obligations as they came due without material assistance other than conventional lending or financing arrangements.

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    Table of such securities, which issuer (subject to certain limited exceptions) is an eligible portfolio company (as defined below), or from any person who is, or has been during the preceding 13 months, an affiliated person of an eligible portfolio company, or from any other person, subject to such rules as may be prescribed by the SEC.

    (2)
    Securities of any eligible portfolio company that we control.

    (3)
    Securities purchased in a private transaction from a U.S. issuer that is not an investment company or from an affiliated person of the issuer, or in transactions incident thereto, if the issuer is in bankruptcy and subject to reorganization or if the issuer, immediately prior to the purchase of its securities was unable to meet its obligations as they came due without material assistance other than conventional lending or financing arrangements.

    (4)
    Securities of an eligible portfolio company purchased from any person in a private transaction if there is no ready market for such securities and we already own 60% of the outstanding equity of the eligible portfolio company.

    (5)
    Securities received in exchange for or distributed on or with respect to securities described in (1) through (4) above, or pursuant to the exercise of warrants or rights relating to such securities.

    (6)
    Cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.
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    (4)Securities of an eligible portfolio company purchased from any person in a private transaction if there is no ready market for such securities and we already own 60% of the outstanding equity of the eligible portfolio company.
    (5)Securities received in exchange for or distributed on or with respect to securities described in (1) through (4) above, or pursuant to the exercise of warrants or rights relating to such securities.
    (6)Cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.

    In addition, a BDC must have been organized and have its principal place of business in the United States and must be operated for the purpose of making investments in the types of securities described in (1), (2) or (3) above.

    An eligible portfolio company is defined in the 1940 Act as any issuer which:

    (a)is organized under the laws of, and has its principal place of business in, the United States;
    (b)is not an investment company (other than a small business investment company wholly owned by the BDC) or a company that would be an investment company but for certain exclusions under the 1940 Act; and
    (c)satisfies any of the following:

    (i)does not have any class of securities that is traded on a national securities exchange or has a class of securities listed on a national securities exchange but has an aggregate market value of outstanding voting and non-voting common equity of less than $250 million;
    (ii)is controlled by a BDC or a group of companies including a BDC and the BDC has an affiliated person who is a director of the eligible portfolio company; or
    (iii)is a small and solvent company having total assets of not more than $4 million and capital and surplus of not less than $2 million.

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      Managerial Assistance to Portfolio Companies

    As noted above, a BDC must be operated for the purpose of making investments in the type of securities described in (1), (2) or (3) above under the heading entitled "—“— Qualifying Assets." In addition, BDCs must generally offer to make available to such issuer of the securities (other than small and solvent companies described above) significant managerial assistance; except that, where we purchase such securities in conjunction with one or more other persons acting together, one of the other persons in the group may make available such managerial assistance. Making available managerial assistance means, among other things, any arrangement whereby the BDC, through its directors, officers or employees, offers to provide, and, if accepted, does so provide, significant guidance and counsel concerning the management, operations or business objectives and policies of a portfolio company.

      Temporary Investments

    Pending investment in "qualifying“qualifying assets," as described above, our investments may consist of cash, cash equivalents, U.S. government securities and high-quality debt securities maturing in one year or less from time of investment therein, so that 70% of our assets are qualifying assets.

      Senior Securities

    Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% of all debt and/or senior stock immediately

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    after each such issuance. However, recent2018 legislation has modified the 1940 Act by allowing a BDC to increase the maximum amount of leverage it may incur from an asset coverage ratio of 200% to an asset coverage ratio of 150%, if certain requirements are met. We are permitted to increase our leverage capacity if stockholders representing at least a majority of the votes cast, when quorum is met, approve a proposal to do so. If we receive such stockholder approval, we would be permitted to increase our leverage capacity on the first day after such approval. Alternatively, we may increase the maximum amount of leverage we may incur to an asset coverage ratio of 150% if the "required majority"“required majority” of our independent directors as defined in Section 57(o) of the 1940 Act approve such increase with such approval becoming effective after one year. In either case, we would be required to make certain disclosures on our website and in SEC filings regarding, among other things, the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. In addition, while any senior securities remain outstanding (other than senior securities representing indebtedness issued in consideration of a privately arranged loan which is not intended to be publicly distributed), we must make provisions to prohibit any cash distribution to our stockholders or the repurchase of such securities or shares unless we meet the applicable asset coverage ratios at the time of the distribution or repurchase. We may also borrow amounts up to 5% of the value of our total assets for temporary or emergency purposes without regard to asset coverage. For a discussion of the risks associated with leverage, see "Risk“Risk Factors — Risks Relating to Our Business and Structure,"Debt Financing,” including, without limitation, "—“— Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

    We have previously received an exemptive order from the SEC to exclude debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street. The exemptive order provides for the exclusion of all debt securities issued by the Funds, including the $345.8$309.8 million of outstanding debt as of December 31, 2018,2020, issued pursuant to the SBIC program. This exemptive order provides us with expanded capacity and flexibility in obtaining future sources of capital for our investment and operational objectives.

    We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is


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    in our best interests and that of our stockholders, and our stockholders approve such sale. In any such case, the price at which our securities are to be issued and sold may not be less than a price which, in the determination of our Board of Directors, closely approximates the market value of such securities (less any distributing commission or discount). We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 20182020 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. Our stockholders have previously approved a proposal that authorizes us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. We may also make rights offerings to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. See "Risk“Risk Factors — Risks Relating to Our Business and StructureSecurities — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock."

      Code of Ethics

    We have adopted a code of ethics pursuant to Rule 17j-1 under the 1940 Act that establishes procedures for personal investments and restricts certain personal securities transactions. Personnel subject to the code may invest in securities for their personal investment accounts, including securities that may be purchased or held by us, so long as such investments are made in accordance with the code'scode’s requirements. In addition, theThe code of ethics is available on the EDGAR Database on the SEC'sSEC’s Web site athttp://www.sec.gov.www.sec.gov.

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      Proxy Voting Policies and Procedures

      We vote proxies relating to our portfolio securities in a manner in which we believe is consistent with the best interest of our stockholders. We review on a case-by-case basis each proposal submitted to a stockholder vote to determine its impact on the portfolio securities held by us. Although we generally vote against proposals that we expect would have a negative impact on our portfolio securities, we may vote for such a proposal if there exists compelling long-term reasons to do so.

      Our proxy voting decisions are made by the investment team which is responsible for monitoring each of our investments. To ensure that our vote is not the product of a conflict of interest, we require that anyone involved in the decision-making process discloses to our chief compliance officer any potential conflict regarding a proxy vote of which he or she is aware.

      Stockholders may obtain information, without charge, regarding how we voted proxies with respect to our portfolio securities by making a written request for proxy voting information to: Chief Compliance Officer, 1300 Post Oak Boulevard, 8th Floor, Houston, Texas 77056.

      We are also prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our Board of Directors who are not interested persons and, in some cases, prior approval by the SEC.

      We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC, we are prohibited from protecting any director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person'sperson’s office.

      We are required to adopt and implement written policies and procedures reasonably designed to prevent violation of the federal securities laws, review these policies and procedures no less frequently than annually for their adequacy and the effectiveness of their implementation, and to designate a chief compliance officer to be responsible for administering the policies and procedures.

      We may be periodically examined by the SEC for compliance with the 1940 Act.


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        Small Business Investment Company Regulations

      Each of the Funds is licensed by the SBA to operate as a SBIC under Section 301(c) of the Small Business Investment Act of 1958. MSMF obtained its SBIC license in 2002, MSC II obtained its license in 2006 and MSC III obtained its license in 2016.

      SBICs are designed to stimulate the flow of private capital to eligible small businesses. Under SBIC regulations, SBICs may make loans to eligible small businesses, invest in the equity securities of such businesses and provide them with consulting and advisory services. Each of the Funds has typically invested in secured debt, acquired warrants and/or made equity investments in qualifying small businesses.

      The Funds are subject to regulation and oversight by the SBA, including requirements with respect to reporting financial information, such as the extent of capital impairment if applicable, on a regular basis and annual examinations conducted by the SBA. The SBA, as a creditor, will have a superior claim to the Funds'Funds’ assets over our securities holders in the event the Funds are liquidated or the SBA exercises its remedies under the SBA-guaranteed debentures issued by the Funds upon an event of default.

      We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940 Act. As such, our ratio of total consolidated assets to

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      outstanding indebtedness may be less than 200%. This provides us with increased investment flexibility but also increases our risks related to leverage. See "Risk“Risk Factors — Risks Relating to Our Business and StructureDebt Financing — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

      Under present SBIC regulations, eligible small businesses generally include businesses that (together with their affiliates) have a tangible net worth not exceeding $19.5 million or have average annual net income after U.S. federal income taxes not exceeding $6.5 million (average net income to be computed without benefit of any carryover loss) for the two most recent fiscal years. In addition, an SBIC must devote 25% of its investment activity to "smaller"“smaller” enterprises as defined by the SBA. A smaller enterprise generally includes businesses that have a tangible net worth not exceeding $6 million and have average annual net income after U.S. federal income taxes not exceeding $2 million (average net income to be computed without benefit of any net carryover loss) for the two most recent fiscal years. SBIC regulations also provide alternative size standard criteria to determine eligibility for designation as an eligible small business or smaller enterprise, which criteria depend on the primary industry in which the business is engaged and are based on such factors as the number of employees and gross revenue. However, once an SBIC has invested in a company, it generally may continue to make follow-on investments in the company, regardless of the size of the portfolio company at the time of the follow-on investment, up to the time of the portfolio company'scompany’s initial public offering.

      The SBA prohibits an SBIC from providing funds to small businesses for certain purposes, such as relending and investment outside the United States, to businesses engaged in certain prohibited industries, and to certain "passive"“passive” (non-operating) companies. In addition, without prior SBA approval, an SBIC may not invest an amount equal to more than approximately 30% of the SBIC'sSBIC’s regulatory capital, as defined by the SBA, in any one portfolio company and its affiliates.

      The SBA places certain limitations on the financing terms of investments by SBICs in portfolio companies (such as limiting the permissible interest rate on debt securities held by an SBIC in a portfolio company). Included in such limitations are SBASBIC regulations which allow an SBIC to exercise control over a small business for a period of seven years from the date on which the SBIC initially acquires its control position. This control period may be extended for an additional period of time with the SBA'sSBA’s prior written approval.

      The SBA restricts the ability of an SBIC to lend money to any of its officers, directors and employees or to invest in affiliates thereof. The SBA also prohibits, without prior SBA approval, a "change“change of control"control” of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of equity of a licensed SBIC. A "change“change of control"control” is any event which would result in the


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      transfer of the power, direct or indirect, to direct the management and policies of an SBIC, whether through ownership, contractual arrangements or otherwise.

      The SBIC licenses allow the Funds to incur leverage by issuing SBA-guaranteed debentures, subject to the issuance of a capital commitment and certain approvals by the SBA and customary procedures. SBA-guaranteed debentures carry long-term fixed rates that are generally lower than rates on comparable bank and other debt. Under applicable regulations, an SBIC may generally have outstanding debentures guaranteed by the SBA in amounts up to twice the amount of the privately raised funds of the SBIC. Debentures guaranteed by the SBA have a maturity of ten years, require semiannual payments of interest, do not require any principal payments prior to maturity, and are not subject to prepayment penalties. As of December 31, 2018,2020, we, through the Funds, had $345.8$309.8 million of outstanding SBA-guaranteed debentures, which had an annual weighted-average interest rate of approximately 3.7%3.4%.

      SBICs must invest idle funds that are not being used to make loans in investments permitted under SBIC regulations in the following limited types of securities: (i) direct obligations of, or obligations guaranteed as to principal and interest by, the United States government, which mature within 15 months from the date of the investment; (ii) repurchase agreements with federally insured institutions with a maturity of seven days or less (and the securities underlying the repurchase obligations must be direct obligations of or guaranteed by the federal government); (iii) certificates of deposit with a maturity of one year or less, issued by a federally insured institution; (iv) a deposit account in a federally insured institution that is subject to a withdrawal restriction of one year or less; (v) a checking account in a federally insured institution; or (vi) a reasonable petty cash fund.

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      SBICs are periodically examined and audited by the SBA'sSBA’s staff to determine their compliance with SBIC regulations and are periodically required to file certain financial information and other documents with the SBA.

      Neither the SBA nor the U.S. government or any of its agencies or officers has approved any ownership interest to be issued by us or any obligation that we or any of our subsidiaries may incur.

      We are subject to the reporting and disclosure requirements of the Securities Exchange Act of 1934 (the "Exchange Act"“Exchange Act”), including the filing of quarterly, annual and current reports, proxy statements and other required items. In addition, we are subject to the Sarbanes-Oxley Act of 2002, which imposes a wide variety of regulatory requirements on publicly-held companies and their insiders. For example:

      The New York Stock Exchange ("NYSE"(“NYSE”) has adopted corporate governance regulations that listed companies must comply with. We believe we are in compliance with such corporate governance listing


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      standards. We intend to monitor our compliance with all future listing standards and to take all necessary actions to ensure that we stay in compliance.

        Investment Adviser Regulations

      The External Investment Manager, which is wholly owned by us, is subject to regulation under the Advisers Act. The Advisers Act establishes, among other things, recordkeeping and reporting requirements, disclosure requirements, limitations on transactions between the adviser'sadviser’s account and an advisory client'sclient’s account, limitations on transactions between the accounts of advisory clients, and general anti-fraud prohibitions. The External Investment Manager may be examined by the SEC from time to time for compliance with the Advisers Act.

        Taxation as a Regulated Investment Company

      MSCC has elected to be treated for U.S. federal income tax purposes as a RIC under Subchapter M of the Code. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, we generally will not pay corporate-level U.S. federal income taxes on any income that we distribute to our stockholders as dividends. To qualify as a RIC, we must, among other things, meet certain source-of-income and asset diversification requirements (as described below). In addition, in order to obtain RIC tax treatment, we must distribute to our stockholders, for each taxable year, at least 90% of our "investment“investment company taxable income," which is generally our net ordinary taxable income plus the excess of realized net short-term capital gains over realized net long-term capital losses, and 90% of our tax-exempt income (the "Annual

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      “Annual Distribution Requirement"Requirement”). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

      For any taxable year in which we qualify as a RIC and satisfy the Annual Distribution Requirement, we will not be subject to U.S. federal income tax on the portion of our income or capital gains we distribute (or are deemed to distribute) to stockholders. We will be subject to U.S. federal income tax at the regular corporate rates on any income or capital gains not distributed (or deemed distributed) to our stockholders.

      We are subject to a 4% non-deductible U.S. federal excise tax on certain undistributed income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax (the "Excise“Excise Tax Avoidance Requirement"Requirement”). Dividends declared and paid by us in a year will generally differ from taxable income for that year as such dividends may include the distribution of current year taxable income, exclude amounts carried over into the following year, and include the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we will be required to pay the 4% U.S. federal excise tax on the excess of 98% of our annual investment company taxable income and 98.2% of our capital gain net income over our distributions for the year.

      In order to qualify as a RIC for U.S. federal income tax purposes, we must, among other things:

      continue to qualify as a BDC under the 1940 Act at all times during each taxable year;
      derive in each taxable year at least 90% of our gross income from dividends, interest, payments with respect to certain securities, loans, gains from the sale of stock or other securities, net income from certain “qualified publicly traded partnerships,” or other income derived with respect to our business of investing in such stock or securities (the “90% Income Test”); and
      diversify our holdings so that at the end of each quarter of the taxable year:

      at least 50% of the value of our assets consists of cash, cash equivalents, U.S. government securities, securities of other RICs, and other securities if such other securities of any one issuer do not represent more than 5% of the value of our assets or more than 10% of the outstanding voting securities of the issuer; and
      no more than 25% of the value of our assets is invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain “qualified publicly traded partnerships” (collectively, the “Diversification Tests”).

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          diversify our holdings so that at the end of each quarter of the taxable year:

          at least 50% of the value of our assets consists of cash, cash equivalents, U.S. government securities, securities of other RICs, and other securities if such other securities of any one issuer do not represent more than 5% of the value of our assets or more than 10% of the outstanding voting securities of the issuer; and

          no more than 25% of the value of our assets is invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain "qualified publicly traded partnerships" (collectively, the "Diversification Tests").

      In order to comply with the 90% Income Test, we formed the Taxable Subsidiaries as wholly owned taxable subsidiaries for the primary purpose of permitting us to own equity interests in portfolio companies which are "pass-through"“pass-through” entities for tax purposes. Absent the taxable status of the Taxable Subsidiaries, a portion of the gross income from such portfolio companies would flow directly to us for purposes of the 90% Income Test. To the extent such income did not consist of income derived from securities, such as dividends and interest, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. The Taxable Subsidiaries are consolidated with Main Street for generally accepted accounting principles in the United States of America ("(“U.S. GAAP"GAAP”) purposes and are included in our consolidated financial statements, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of

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      their ownership of the portfolio investments. The income tax expense, or benefit, if any, and any related tax assets and liabilities, are reflected in our consolidated financial statements.

      The External Investment Manager is accounted for as a portfolio investment for U.S. GAAP purposes and is an indirect wholly owned subsidiary of MSCC, owned through a Taxable Subsidiary. The External Investment Manager is owned by a Taxable Subsidiary in order to comply with the 90% Income Test, since the External Investment Manager'sManager’s income would likely not consist of income derived from securities, such as dividends and interest, and as result, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. As a result of its ownership by a Taxable Subsidiary, the External Investment Manager is a disregarded entity for tax purposes. The External Investment Manager has also entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager'sManager’s separate financial statements.

      We may be required to recognize taxable income in circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under applicable tax rules as having original issue discount (such as debt instruments issued with warrants and debt securities invested in at a discount to par), we must include in income each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the same taxable year. We may also have to include in income other amounts that we have not yet received in cash such as PIK interest, cumulative dividends or amounts that are received in non-cash compensation such as warrants or stock. Because any original issue discount or other amounts accrued will be included in our investment company taxable income for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the Annual Distribution Requirement, even though we will not have received any corresponding cash amount.


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      Although we do not presently expect to do so, we are authorized to borrow funds and to sell assets in order to satisfy distribution requirements. However, under the 1940 Act, we are not permitted to make distributions to our stockholders in certain circumstances while our debt obligations and other senior securities are outstanding unless certain "asset coverage"“asset coverage” tests are met. See "Regulation“Regulation — Regulation as a Business Development Company — Senior Securities." Moreover, our ability to dispose of assets to meet our distribution requirements may be limited by (1) the illiquid nature of our portfolio and/or (2) other requirements relating to our status as a RIC, including the Diversification Tests. If we dispose of assets in order to meet the Annual Distribution Requirement or the Excise Tax Avoidance Requirement, we may make such dispositions at times that, from an investment standpoint, are not advantageous.

      We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the U.S. Department of the Treasury ("Treasury"(“Treasury”) regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance indicating that this rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total distribution. According to this guidance, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total cash to be distributed and would receive the remainder of their distribution in shares of stock. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend (whether received in cash, our stock, or a combination thereof) as (i) ordinary income (including any qualified dividend income that, in the case of a noncorporate stockholder, may be eligible for the same reduced maximum tax rate applicable to long-term capital gains to the extent such distribution is properly reported by us as qualified dividend income and such stockholder satisfies certain minimum holding period requirements with respect to our stock) or (ii) long-term capital gain (to the extent such distribution is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock

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      at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

      If we fail to satisfy the 90% Income Test or the Diversification Tests for any taxable year, we may nevertheless continue to qualify as a RIC for such year if certain relief provisions are applicable (which may, among other things, require us to pay certain corporate-level U.S. federal taxes or to dispose of certain assets).

      If we were unable to qualify for treatment as a RIC and the foregoing relief provisions are not applicable, we would be subject to tax on all of our taxable income at regular corporate rates. We would not be able to deduct distributions to stockholders, nor would they be required to be made. If we were subject to tax on all of our taxable income at regular corporate rates, then distributions we make after being subject to such tax would be taxable to our stockholders and, provided certain holding period and other requirements were met, could qualify for treatment as "qualified“qualified dividend income"income” eligible for the maximum 20% rate (plus a 3.8% Medicare surtax, if applicable) applicable to qualified dividends to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate taxpayers would be eligible for a dividends-received deduction on distributions they receive. Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of capital to the extent of the stockholder'sstockholder’s tax basis, and any remaining distributions would be treated as a capital gain. To requalify as a RIC in a subsequent taxable year, we would be required to satisfy the RIC qualification requirements for that year and dispose of any earnings and profits from any year in which we failed to qualify as a RIC. Subject to a


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      limited exception applicable to RICs that qualified as such under Subchapter M of the Code for at least one year prior to disqualification and that requalify as a RIC no later than the second year following the nonqualifying year, we could be subject to tax on any unrealized net built-in gains in the assets held by us during the period in which we failed to qualify as a RIC that are recognized within the subsequent five years, unless we made a special election to pay corporate-level U.S. federal income tax on such built-in gain at the time of our requalification as a RIC.

      Item 1A. Risk Factors

      Investing in our securities involves a number of significant risks. In addition to the other information contained in this Annual Report on Form 10-K, you should consider carefully the following information before making an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, our net asset value, the trading price of our common stock and the value of our other securities could decline, and you may lose all or part of your investment.

      SUMMARY OF RISK FACTORS

      The following is a summary of the principal risk factors associated with an investment in our securities. Further details regarding each risk included in the below summary list can be found further below.

      Risks Relating to Economic Conditions

      Events outside of our control, including public health crises, could negatively affect our portfolio companies and our results of operations.

      Risks Relating to our Business and Structure

      Our Investment Portfolio is and will continue to be recorded at fair value, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and, as a result, there is and will continue to be uncertainty as to the value of our portfolio investments.
      Our financial condition and results of operations depends on our ability to effectively manage and deploy capital.
      We face increasing competition for investment opportunities.
      We are dependent upon our key investment personnel for our future success.

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      Our business model depends to a significant extent upon strong referral relationships, and our inability to maintain or develop these relationships, as well as the failure of these relationships to generate investment opportunities, could adversely affect our business.

      Risks Relating to our Investment Management Activities

      Our executive officers and employees, through the External Investment Manager, may manage other investment funds, including MSC Income, that operate in the same or a related line of business as we do, and may invest in such funds, which may result in significant conflicts of interest.
      We, through the External Investment Manager, derive revenues from managing third party funds pursuant to management agreements that may be terminated pursuant to the terms of such agreements or requirements under the 1940 Act.

      Risks Related to BDCs and SBICs

      Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives.
      Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.
      The Funds are licensed by the SBA, and therefore subject to SBIC regulations.

      Risks Related to our Investments

      Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.
      The lack of liquidity in our investments may adversely affect our business.
      Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.
      There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.
      Second priority liens on collateral securing loans that we make to our portfolio companies may be subject to control by senior creditors with first priority liens. If there is a default, the value of the collateral may not be sufficient to repay in full both the first priority creditors and us.
      Changes relating to the LIBOR calculation process, the phase-out of LIBOR and the use of replacement rates for LIBOR may adversely affect the value of our portfolio securities.
      Changes in interest rates may affect our cost of capital, net investment income and value of our investments.

      Risks Related to Our Debt Financing

      Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.
      All of our assets are subject to security interests under our secured Credit Facility or subject to a superior claim over our stockholders by the SBA and if we default on our obligations under the Credit Facility or with respect to our SBA guaranteed debentures or under the Notes, we may suffer adverse consequences, including foreclosure on our assets.

      Risks Relating to our Securities

      Investing in our securities may involve a high degree of risk.
      Shares of closed end investment companies, including BDCs, may trade at a discount to their net asset value.
      The market price of our securities may be volatile and fluctuate significantly.
      Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock.
      Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.
      The Notes are unsecured and therefore effectively subordinated to any current or future secured indebtedness, including indebtedness under the Credit Facility.
      The Notes are structurally subordinated to the indebtedness and other liabilities of our subsidiaries.
      The indentures under which the Notes were issued contain limited protection for holders of the Notes.
      If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.

      Federal Income Tax Risks

      We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.

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      We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income.
      Because we intend to distribute substantially all of our taxable income to our stockholders to maintain our status as a RIC, we will continue to need additional capital to finance our growth, and regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital and make distributions.

      RISKS RELATING TO ECONOMIC CONDITIONS

             The broader fundamentals of the United States economy remain mixed. In the event that the United States economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. In addition, a decline in oil and natural gas prices would adversely affect the credit quality of our debt investments and the underlying operating performancevalue of those investments. We may need to restructure our equity investments in energy-related businesses. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles, industry cycles or other conditions,as a result of the adverse effects of the COVID-19 pandemic, which could also have a negative impact onreduce the amount or extend the time for payment of principal or the life of our future results.

             Although we have been able to secure access to additional liquidity, including throughinvestment or reduce the amount or extend the time of payment of interest or dividends, among other things. In addition, if an investment included in the borrowing base for our multi-year revolving, secured credit facility (the "Credit Facility"“Credit Facility”), public debt issuances, leverage available through is deemed to have a material impairment or loss, or if we modify the SBIC program and equity offerings, the potential for volatilityterms of an investment included in the borrowing base for the Credit Facility, it may reduce the value of the borrowing base, which may have a material adverse effect on our available liquidity, results of operations and financial condition. In addition, any decreases in our net investment income would impact the portion of our cash flows dedicated to servicing existing borrowings under the Credit Facility, any unsecured notes or other debt we have outstanding and equity capital markets provides no assurance that debt or equity capital willfunding the dividends paid to our stockholders. Depending on the duration of the COVID-19 pandemic and the extent of its effects on our portfolio companies' operations and our operating results, any future dividends to our stockholders may be available tofor amounts less than our historical dividends, may be paid less frequently than historical practices and may also include return of capital.

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      The 1940 Act generally prohibits us, as a BDC, from incurring indebtedness unless immediately after such borrowing we have an asset coverage, as defined in the future on favorable terms,1940 Act, of at least 200% (or 150% if certain requirements are met). In addition, the Credit Facility and the indentures governing our outstanding unsecured notes contain similar limitations or at all. Further, ifcovenants requiring our compliance with the price1940 Act asset coverage requirements, and the Credit Facility also contains other affirmative and negative covenants. A continued significant decrease in the value of our common stock falls belowInvestment Portfolio, resulting in significant reductions of our net asset value per share, we will be limited inas a result of the effects of the COVID-19 pandemic or otherwise increases the risk of us not meeting the required asset coverage requirement under the 1940 Act or breaching covenants under the Credit Facility or under the indentures governing our outstanding unsecured notes. Any such result could have a material adverse effect on our business, liquidity, financial condition, results of operations and ability to sell new shares if we do not have stockholder authorizationpay dividends to sell shares at a price below net asset value per share. our stockholders and attributes thereof.

      We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2018 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011.

      The U.S. capital markets have experienced extreme volatility and disruption following the global outbreak of COVID-19 that began in December 2019. Some economists and major investment banks have expressed concern that the continued spread of the virus globally could lead to a world-wide economic downturn. Disruptions in the capital markets have increased the spread between the yields realized on risk-free and higher risk securities, resulting in illiquidity in parts of the capital markets. Additionally, the impact of potential downgrades by rating agencies to the U.S. government’s sovereign credit rating or its perceived creditworthiness, as well as potential government shutdowns could adversely affect the U.S. and global capitalfinancial markets and economic conditions. Since 2010, several European Union, or EU, countries have from time to time, experienced periodsfaced budget issues, some of disruption characterized bywhich may have negative long-term effects for the freezingeconomies of available credit,those countries and other EU countries. There is concern about national-level support for the Euro and the accompanying coordination of fiscal and wage policy among European Economic and Monetary Union member countries. In addition, the fiscal policy of foreign nations, such as Russia and China, may have a lack of liquiditysevere impact on the worldwide and U.S. financial markets. The decision made in the debt capital markets, significant losses in the principal value of investments, the re-pricing of credit risk in the broadly syndicated credit


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      market, the failure of major financial institutions and general volatility in the financial markets. During these periods of disruption, general economic conditions deteriorated with material and adverse consequences for the broader financial and credit markets, and the availability of debt and equity capital for the market as a whole, and financial services firms in particular, was reduced significantly. These conditions may reoccur for a prolonged period of time or materially worsen in the future. In addition, continuing uncertainty arising from the United Kingdom's decisionKingdom referendum to leave the European UnionEU (the so called "Brexit"so-called “Brexit”) couldhas led to volatility in global financial markets and may lead to further market disruptions and currency volatility, potentially weakening in consumer, corporate and financial confidence and resulting in lower economic growth for companies that rely significantly on Europe for their business activities and revenues. We may in the future have difficulty accessing debtUnited Kingdom and equity capitalEurope. While the United Kingdom commenced its withdrawal from the EU, the transition and its surrounding negotiations are ongoing, which creates uncertainty, which may lead to continued volatility. Additionally, trade wars and volatility in the U.S. repo market, the U.S. high yield bond markets, the Chinese stock markets and a severe disruptionglobal markets for commodities may affect other financial markets worldwide. In addition, while recent government stimulus measures worldwide have reduced volatility in the global financial markets, deterioration in creditvolatility may return as such measures are phased out, and financing conditions the long-term impacts of such stimulus on fiscal policy and inflation remain unknown.

      These and future market disruptions and/or uncertainty regarding U.S. government spending and deficit levels, Brexit or other global economic conditions couldilliquidity would be expected to have a materialan adverse effect on our business, financial condition, and results of operations.operations and cash flows. Unfavorable economic conditions also would be expected to increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could limit our investment originations, limit our ability to grow and have a material negative impact on our operating results and the fair values of our debt and equity investments. We monitor developments in economic, political and market conditions and seek to manage our investments in a manner consistent with achieving our investment objective, but there can be no assurance that we will be successful in doing so.

      RISKS RELATING TO OUR BUSINESS AND STRUCTURE

        Our Investment Portfolio is and will continue to be recorded at fair value, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and, as a result, there is and will continue to be uncertainty as to the value of our portfolio investments.

      Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and our valuation procedures. Typically, there is not a public market for the securities of the privately held LMM or Private Loan companies in which we have invested and will generally continue to invest. As a result, we value these securities quarterly at fair value based

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      on inputs from management, a nationally recognized independent financial advisory services firm (on a rotational basis) and the Audit Committee of our audit committeeBoard of Directors with the oversight, review and approval of our Board of Directors. In addition, the market for investments in Middle Market companies is generally not a liquid market, and therefore, we primarily use a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs, which are reviewed by our audit committeethe Audit Committee with the oversight, review and approval of our Board of Directors. See "Note“Note B.1. — Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a more detailed description of our investment portfolio valuation process and procedures.

      The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of securities in privately held companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our net asset value on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated net asset value would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the net asset value understates the value of our investments may receive a lower price for their securities than the value of our investments might warrant.


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        Our financial condition and results of operations depends on our ability to effectively manage and deploy capital.

      Our ability to achieve our investment objective of maximizing our portfolio'sportfolio’s total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company, depends on our ability to effectively manage and deploy capital, which depends, in turn, on our investment team'steam’s ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria.

      Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team'steam’s handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment.

      Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if we cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends.

        We may face increasing competition for investment opportunities.

      We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors'competitors’ pricing, terms and structure. If we are forced to match our competitors'competitors’ pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A

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      significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC.

      We depend on the members of our investment team, particularly Dwayne L. Hyzak, David L. Magdol, Vincent D. Foster, Curtis L. Hartman,Jesse E. Morris, K. Colton Braud, III, Damian T. Burke, Nicholas T. Meserve and Samuel A. Cashiola, and Watt R. Matthews, for the identification, review, final selection, structuring, closing and monitoring of our investments. These employees have significant investment expertise and relationships that we rely on to implement our business plan. Although we have entered into a non-compete agreement with Mr. Foster and non-compete arrangements with all of our executive officers and other key employees, in connection with their restricted stock grants, we have nocannot guarantee that he or any other employees will remain employed with us. If


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      we lose the services of thesethe individuals mentioned above, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer.

        Our success depends on attracting and retaining qualified personnel in a competitive environment.

      Our growth will require that we retain new investment and administrative personnel in a competitive market. Our ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which we compete for experienced personnel have greater resources than we have.

      The competitive environment for qualified personnel may require us to take certain measures to ensure that we are able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of our overall compensation packages, altering the structure of our compensation packages through the use of additional forms of compensation, or other steps. The inability to attract and retain experienced personnel would have a material adverse effect on our business.

        Our business model depends to a significant extent upon strong referral relationships, and our inability to maintain or develop these relationships, as well as the failure of these relationships to generate investment opportunities, could adversely affect our business.

      We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.

        We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which could harm our financial condition and operating results.

        Delays in investing the net proceeds raised in an offering or other capital raised or proceeds resulting from exiting an investment may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of any offering or other capital raised or proceeds resulting from exiting an investment on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.

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      We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in securities meeting our investment objective. During this period, we may invest the capital primarily in marketable securities and idle funds investments, which generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments and may produce returns that are significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. Most of the debt investments that meet our investment criteria are, or would be if rated, below investment grade quality. Indebtedness of below investment grade quality, which is often referred to as “junk,” is regarded as having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. As a result, any distributions that we pay during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment objective. In addition, until such time as the net proceeds of any offering or from exiting an investment or other capital are invested in new securities meeting our investment objective, the market price for our securities may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities meeting our investment objective.

      Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse.

      Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.

      We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital, which is a distribution of the stockholders’ invested capital.

      We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants, each of the Funds’ compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future.

      When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for U.S. federal income tax purposes, which may result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

      We are subject to risks related to corporate social responsibility.

      Our business faces increasing public scrutiny related to environmental, social and governance (“ESG”) activities. We risk damage to our brand and reputation if we fail to act responsibly in a number of areas, such as diversity and inclusion, environmental stewardship, support for local communities, corporate governance and transparency and considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the

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      value of our brand, the cost of our operations and relationships with investors, all of which could adversely affect our business and results of operations. Additionally, new regulatory initiatives related to ESG could adversely affect our business.

      RISKS RELATED TO OUR INVESTMENT MANAGEMENT ACTIVITIES

      Our executive officers and employees, through the External Investment Manager, may manage other investment funds, including HMSMSC Income, that operate in the same or a related line of business as we do, and may invest in such funds, which may result in significant conflicts of interest.

      Our executive officers and employees, through the External Investment Manager, may manage other investment funds that operate in the same or a related line of business as we do.do, and which funds may be invested in by us and/or our executive officers and employees, including the Private Loan Fund. Accordingly, they may have obligations to, or pecuniary interests in, such other entities, and the fulfillment of whichsuch obligations may not be in the best interests of us or our stockholders. stockholders and may create conflicts of interest. During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser in connection with its role as investment adviser to MSC Income (then HMS Income Fund, Inc.) in exchange for 50% of the 2.0% base management fee and 20% incentive fee earned by HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. UnderOn October 30, 2020, after successfully receiving the investment sub-advisory agreement,required approval of the stockholders of MSC Income, we completed a transaction whereby the External Investment Manager is entitledbecame the sole investment adviser and administrator to 50% of MSC Income pursuant to the Advisory Agreement. Under the Advisory Agreement, the External Investment Manager earns a 1.75% base management fee and thea 20% incentive fees earned by HMS Adviser under itsfee in exchange for providing investment advisory agreement with HMSservices to MSC Income.

      The sub-advisoryinvestment advisory relationship requires us to commit resources to achieving HMS Income'sMSC Income’s investment objective, while such resources were previouslywould otherwise be solely devoted to achieving our investment objective. Our investment objective and investment strategies are very similar to those of HMSMSC Income and it is likely that an investment appropriate for us or HMSMSC Income would be appropriate for the other entity. As a result, we and HMSMSC Income requested an exemptive order from the SEC permitting co-investments by us and HMSMSC Income in certain negotiated transactions where our co-investing would otherwise be prohibited under the 1940 Act. The SEC granted the exemptive order in April 2014, and in December 2020, we received an amended exemptive order from the SEC permitting co-investments by us, MSC Income and other funds advised by the External Investment Manager in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made co-investments with MSC Income and in the future intend to continue to make such co-investments with HMSMSC Income, the Private Loan Fund and other funds advised by the External Investment Manager in


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      accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMSus and the External Investment Manager’s advised clients, including MSC Income, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income.such parties. As a consequence, it may be more difficult for us to maintain or increase the size of our Investment Portfolio in the future. Although we will endeavor to allocate investment opportunities in a fair and equitable manner, including in accordance with the conditions set forth in the exemptive order issued by the SEC when relying on such order, we may face conflicts in allocating investment opportunities between us and HMS Income.other funds and accounts managed by the External Investment Manager, including MSC Income and the Private Loan Fund. Because the External Investment Manager may receive performance-based fee compensation from HMSMSC Income and any other funds and accounts it manages, this may provide the Company and the External Investment Manager an incentive to allocate opportunities to HMSMSC Income and any other funds and accounts the External Invesment Manager manages, including the Priate Loan Fund, instead of us. We and the External Investment Manager have implemented an allocation policy to ensure the equitable distribution of investment opportunities and, as a result, may be unable to participate in certain investments based upon such allocation policy.

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        We, through the External Investment Manager, derive revenues from managing third partythird-party funds pursuant to management agreements that may be terminated pursuant to the terms of such agreements or requirements under the 1940 Act.

        The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed, including HMS Income.MSC Income and the Private Loan Fund. The terms of fund investment management agreements generally give the manager of the fund and the fund itself the right to terminate the management agreement in certain circumstances. With respect to funds that are not exempt from regulation under the 1940 Act, the fund'sfund’s investment management agreement must be approved annually by (a) such fund'sfund’s board of directors or by the vote of a majority of such fund'sfund’s stockholders and (b) the majority of the independent members of such fund'sfund’s board of directors and, in certain cases, by its stockholders, as required by law. The funds'funds’ investment management agreements can also be terminated by the majority of such fund'sfund’s stockholders. Termination of any such management agreements would reduce the fees we earn from the relevant funds through the External Investment Manager, which could have a material adverse effect on our results of operations. Currently, HMSMSC Income, an investment company that has elected to be regulated as a business development companyBDC under the 1940 Act, is subject to these provisions of the 1940 Act.

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        status and subject us to entity-level corporate income taxation, cause us to fail the 70% test described above or otherwise have a material adverse effect on our business, financial condition or results of operations.

        Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.

        Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

        Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our asset coverage test under the 1940 Act. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we will be prohibited from issuing debt securities or preferred stock and/or borrowing money from banks or other financial institutions and may not be permitted to declare a dividend or make any distribution to stockholders or repurchase shares until such time as we satisfy this test.
        Any amounts that we use to service our debt or make payments on preferred stock will not be available for dividends to our common stockholders.
        It is likely that any senior securities or other indebtedness we issue will be governed by an indenture or other instrument containing covenants restricting our operating flexibility. Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict operating and financial flexibility.
        We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness.
        Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the detriment of the holders of our common stock.
        Any unsecured debt issued by us would generally rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including the SBA-guaranteed debentures issued by the Funds.

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                Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict operating and financial flexibility.

              We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness.

              Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the detriment of the holders of our common stock.

              Any unsecured debt issued by us would rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including the SBA-guaranteed debentures issued by the Funds.

          Additional Common Stock. The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below current net asset value per share provided that our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 20182020 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. See "—“Risk Factors – Risks Relating to our Securities — Stockholders may incur dilution if

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        we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock"stock” for a discussion of the risks related to us issuing shares of our common stock below net asset value. Our stockholders have authorized us to issue warrants, options or rights to subscribe for, convert to, or purchase shares of our common stock at a price per share below the net asset value per share, subject to the applicable requirements of the 1940 Act. There is no expiration date on our ability to issue such warrants, options, rights or convertible securities based on this stockholder approval. If we raise additional funds by issuing more common stock or senior securities convertible into, or exchangeable for, our common stock, the percentage ownership of our stockholders at that time would decrease, and they may experience dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

        Previously enacted legislation may allow us to incur additional leverage.

        The 1940 Act generally prohibits us from incurring indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200% (i.e., the amount of debt may not exceed 50% of the value of our assets). However, legislation passed in March 2018 modified the 1940 Act by allowing a BDC to increase the maximum amount of leverage it may incur by lowering the required asset coverage ratio of 200% to an asset coverage ratio of 150% (i.e., the amount of debt may not exceed 662/3% of the value of our assets), if certain requirements are met. Under the legislation, we are allowed to increase our leverage capacity if stockholders representing at least a majority of the votes cast, when a quorum is met, approve a proposal to do so. If we receive stockholder approval, we would be allowed to increase our leverage capacity on the first day after such approval. Alternatively, the legislation allows a “required majority” (as defined in Section 57(o) of the 1940 Act) of the members of our Board of Directors to approve an increase in our leverage capacity, and such approval would become effective after one year from the date of approval. In either case, we would be required to make certain disclosures on our website and in SEC filings regarding, among other things, the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. As a result of this legislation, we may be able to increase our leverage up to an amount that reduces our asset coverage ratio from 200% to 150%. See “Risk Factors — Risks Relating to Our Debt Financing — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us” for a discussion of the risks associated with leverage.

        The Funds are licensed by the SBA, and therefore subject to SBASBIC regulations.

        The Funds, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBASBIC regulations.

        Further, the SBASBIC regulations require, among other things, that a licensed SBIC be periodically examined by the SBA and audited by an independent auditor, in each case to determine the SBIC'sSBIC’s compliance with the relevant SBASBIC regulations. The SBA prohibits, without prior SBA approval, a "change“change of control"control” of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of capital stock of a licensed SBIC. If the Funds fail to comply with applicable SBIC regulations, the SBA could, depending on the severity of the violation, limit or prohibit their use of SBIC debentures, declare outstanding SBIC debentures immediately due and payable, and/or limit them from making new investments.


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        In addition, the SBA can revoke or suspend a license for willful or repeated violation of, or willful or repeated failure to observe, any provision of the Small Business Investment Act of 1958 or any rule or regulation promulgated thereunder. Such actions by the SBA would, in turn, negatively affect us.

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          RISKS RELATED TO OUR INVESTMENTS

          Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.

          Investing in our portfolio companies exposes us indirectly to a number of significant risks. Among other things, these companies:

          may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity components of our investments;
          may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns;
          are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us;
          generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and
          generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of our investment.

          In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.

          We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest.

          Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such loan’s term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required to be included in taxable and accounting income prior to receipt of cash, including the following:

          original issue discount and PIK instruments may have higher yields, which reflect the payment deferral and credit risk associated with these instruments;
          for accounting purposes, cash distributions to investors representing original issue discount income are not derived from paid in capital, although they may be effectively paid from any offering proceeds during any given period; thus, although the source for the cash used to pay a distribution of original issue discount income may come from the cash invested by investors, the 1940 Act does not require that investors be given notice of this fact;

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          original issue discount and PIK instruments may have unreliable valuations because their continuing accruals require continuing judgments about the collectability of the deferred payments and the value of the collateral; and
          original issue discount and PIK instruments may represent a higher credit risk than coupon loans; even if the conditions for income accrual under generally accepted accounting principles in the United States of America are satisfied, a borrower could still default when actual payment is due upon the maturity of such loan.

          The lack of liquidity in our investments may adversely affect our business.

          We generally invest in companies whose securities are not publicly traded, and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price, and, as a result, we may suffer losses.

          We may not have the funds or ability to make additional investments in our portfolio companies.

          We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation, may reduce our ability to protect an existing investment or may reduce the expected yield on the investment.

          Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.

          We invest primarily in the secured term debt of LMM, Private Loan and Middle Market companies and equity issued by LMM companies. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

          There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

          Even though we may have structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, and based upon principles of equitable subordination as defined by existing case law, a bankruptcy court could subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender has

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          actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower’s business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender liability claim, including as a result of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

          Second priority liens on collateral securing loans that we make to our portfolio companies may be subject to control by senior creditors with first priority liens. If there is a default, the value of the collateral may not be sufficient to repay in full both the first priority creditors and us.

          Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company prohibiting the incurrence of additional secured debt without the senior lender’s consent. Prior to and as a condition of permitting the portfolio company to borrow money from us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of bankruptcy or other default. In many such cases, the senior lender will require us to enter into an “intercreditor agreement” prior to permitting the portfolio company to borrow from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver of defaults under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the proceeds of any collateral securing some of our loans.

          Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors. Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an unsecured claim against the company’s remaining assets, if any.

          We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that may be invested in securities of a single issuer.

          We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. Under the 1940 Act, a “diversified” investment company is required to invest at least 75% of the value of its total assets in cash and cash items, government securities, securities of other investment companies and other securities limited in respect of any one issuer to an amount not greater than 5% of the value of the total assets of such company and no more than 10% of the outstanding voting securities of such issuer. As a non-diversified investment company, we are not subject to this requirement. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market’s assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See “Risk Factors — Federal Income Tax Risks — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.”

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          We generally will not control our portfolio companies.

          We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company will take risks or otherwise act in ways that do not serve our interests as debt investors or minority equity holders. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

          Defaults by our portfolio companies will harm our operating results.

          A portfolio company’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company’s ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.

          Any unrealized depreciation we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution.

          As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an indication of a portfolio company’s inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity investments. This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.

          Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity.

          We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.

          Changes relating to the LIBOR calculation process, the phase-out of LIBOR and the use of replacement rates for LIBOR may adversely affect the value of our portfolio securities.

          LIBOR is the basic rate of interest used in lending transactions between banks on the London interbank market and is widely used as a reference for setting the interest rate on loans globally. We typically use LIBOR as a reference rate in floating rate loans we extend to portfolio companies such that the interest due to us pursuant to a term loan extended to a portfolio company is calculated using LIBOR and we use LIBOR as a reference rate in connection with our Credit Facility. The terms of our debt investments generally include minimum interest rate floors which are calculated based on LIBOR.

          In July 2017, the United Kingdom’s Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR by the end of 2021. Although, on November 30, 2020, Intercontinental Exchange, Inc.

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          (“ICE”) announced that it will consider extending the LIBOR transition deadline to June 30, 2023, U.S. regulators continue to urge financial institutions to stop entering into new LIBOR transactions by the end of 2021. As such, the potential effect of a LIBOR phase out on our net investment income cannot yet be determined. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate (“SOFR”) as its preferred alternative rate for LIBOR. SOFR is a measure of the cost of borrowing cash overnight, collateralized by U.S. Treasury securities, and is based on directly observable U.S. Treasury-based repurchase transactions. Although SOFR appears to be the preferred replacement rate for U.S. dollar LIBOR, at this time, it is not possible to predict whether SOFR will attain market traction as a LIBOR replacement tool or the effect of any such changes as the establishment of alternative reference rates or other reforms to LIBOR may be enacted in the United States, United Kingdom or elsewhere. If LIBOR ceases to exist, we may need to renegotiate the credit agreements with our portfolio companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with the new standard that is established, which may have an adverse effect on our overall financial condition or results of operations. In addition, any further changes or reforms to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on the market value for or value of any LIBOR-linked securities, loans and other financial obligations or extensions of credit held by or due to us and could have a material adverse effect on our business, financial condition, tax position and results of operations.

          Changes in interest rates may affect our cost of capital, net investment income and value of our investments.

          Some of our debt investments will bear interest at variable rates and may be negatively affected by changes in market interest rates. An increase in market interest rates would increase the interest costs and reduce the cash flows of our portfolio companies that have variable rate debt instruments, a situation which could reduce the value of the investment. The value of our securities could also be reduced from an increase in market interest rates as rates available to investors could make an investment in our securities less attractive than alternative investments. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Conversely, decreases in market interest rates could negatively impact the interest income from our variable rate debt investments. A decrease in market interest rates may also have an adverse impact on our returns by requiring us to accept lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to redeploy capital at potentially lower rates. See further discussion and analysis at “Item 7A. Quantitative and Qualitative Disclosures about Market Risk”.

          We may not realize gains from our equity investments.

          Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment documents if the issuer is in financial distress.

          Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments.

          Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in securities of U.S.

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          companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

          Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.

          RISKS RELATING TO OUR DEBT FINANCING

          Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.

          Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our securities. We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our securities holders. We may also borrow from banks and other lenders, including under our Credit Facility, and may issue debt securities or enter into other types of borrowing arrangements in the future. See "Management's“Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Capital Resources"Resources” for a discussion regarding our outstanding indebtedness. If the value of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our ability to pay common stock dividends, scheduled debt payments or other payments related to our securities. Use of leverage is generally considered a speculative investment technique.

          As of December 31, 2018,2020, we, through the Funds, had $345.8$309.8 million of outstanding indebtedness guaranteed by the SBA, which had a weighted-average annualized interest cost of approximately 3.7%3.4%. The debentures guaranteed by the SBA have a maturity of ten years, with a current weighted-average remaining maturity of 5.65.4 years as of December 31, 2018,2020, and require semiannual payments of interest. We will need to generate sufficient cash flow to make required interest payments on the debentures. If we are unable to meet the financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our securities holders in the event we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us.

          In addition, as of December 31, 2018,2020, we had $301.0$269.0 million outstanding under our Credit Facility. Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis at a rate equal to the applicable LIBOR rate (2.5%(0.2% as of the most recent reset date for the period ended December 31, 2018)2020) plus (i) 1.875% (or the applicable base rate (Prime Rate of 5.5%3.25% as of December 31, 2018)2020) plus 0.875%), as long as we meet certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) otherwise. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. If we are unable to meet the financial obligations under the Credit Facility, the Credit Facility lending group will have a superior claim to the assets of MSCC and its subsidiaries (excluding the assets of the Funds) over our stockholders in the event we liquidate or the lending group exercises its remedies under the Credit Facility as the result of a default by us.

          In April 2013,November 2017, we issued $92.0 million, including the underwriters' full exercise of their over-allotment option, in aggregate principal amount of the 6.125% Notes (the "6.125% Notes"). The 6.125% Notes bore interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. The total net proceeds to us from the 6.125% Notes, after underwriting discounts and estimated offering expenses payable, were approximately $89.0 million. On April 2, 2018, we redeemed the entire principal amount of the issued and outstanding 6.125% Notes effective April 1, 2018 (the "Redemption Date"). The 6.125% Notes were redeemed at par value, plus the accrued and unpaid interest thereon from January 1, 2018, through, but excluding, the Redemption Date. As part of the redemption, we recognized a realized loss on extinguishment of debt of $1.5 million in the second quarter of 2018 related to the write-off of the related unamortized deferred financing costs.


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                 In November 2014, we issued $175.0$185.0 million in aggregate principal amount of 4.50% unsecured notes due 20192022 (the "4.50% Notes due 2019"“4.50% Notes”) at an issue price of 99.53%99.16%. As of December 31, 2018,2020, the outstanding balance of the 4.50% Notes due 2019 was $175.0$185.0 million. The 4.50% Notes due 2019 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all

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          existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes mature on December 1, 2022, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.

          In April 2019, we issued $250.0 million in aggregate principal amount of 5.20% unsecured notes due 2019;2024 (the “5.20% Notes”) at an issue price of 99.125%. In December 2019, we issued an additional $75.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 105.0%. In July 2020, we issued an additional $125.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 102.674%. As of December 31, 2020, the outstanding balance of the 5.20% Notes was $450.0 million. The 5.20% Notes issued in December 2019 and July 2020 have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The aggregate net proceeds from the 5.20% Notes issuances were used to repay a portion of the borrowings outstanding under the Credit Facility. The 5.20% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 5.20% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50%5.20% Notes due 2019 mature on DecemberMay 1, 2019,2024, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.

          In November 2017,January 2021, we issued $185.0$300.0 million in aggregate principal amount of 4.50%3.00% unsecured notes due 20222026 (the "4.50% Notes due 2022,"“3.00% Notes” and, together with the 4.50% Notes due 2019,and the "Notes"5.20% Notes, the “Notes”) at an issue price of 99.16%99.004%. As of December 31, 2018, the outstanding balance of the 4.50%The 3.00% Notes due 2022 was $185.0 million. The 4.50% Notes due 2022 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022;3.00% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50%3.00% Notes due 2022 mature on December 1, 2022,July 14, 2026, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.provisions if redeemed prior to June 14, 2026.


          Assumed Return on Our Portfolio(1)
          (net of expenses)

          Assumed Return on Our Portfolio(1)

          (net of expenses)

          (10.0)

          %

          (5.0)

          %

          0.0

          %

          5.0

          %

          10.0

          %

          Corresponding Net Return to Common Stock Holder(2)

          (21.5)

          %

          (12.4)

          %

          (3.2)

          %

          5.9

          %

          15.1

          %

           
           (10.0)% (5.0)% 0.0% 5.0% 10.0% 

          Corresponding net return to common stockholder(2)

            (20.2)%  (11.5)%  (2.9)%  5.8%  14.4% 

          (1)
          Assumes $2,553.4 million in total assets, $1,006.8 million in debt outstanding, $1,476.0 million in net assets, and a weighted-average interest rate of 4.2%. Actual interest payments may be different.

          (2)
          In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2018 total assets of at least 1.7%.

          (1)

          Assumes, as of December 31, 2020, $2,769.4 million in total assets, $1,213.8 million in debt outstanding, $1,514.8 million in net assets, and a weighted-average interest rate of 4.0%. Actual interest payments may be different.

          (2)

          In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2020 total assets of at least 1.8%.

          Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms by issuing debentures guaranteed by the SBA through the Funds, by borrowing from banks or insurance companies or by issuing other debt securities and there can be no assurance that such additional leverage can in fact be achieved.

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          All of our assets are subject to security interests under our secured Credit Facility or subject to a superior claim over our stockholders by the SBA and if we default on our obligations under the Credit Facility or with respect to our SBA-guaranteed debentures, or under the Notes, we may suffer adverse consequences, including foreclosure on our assets.

          Substantially all of our assets are currently pledged as collateral under our Credit Facility or are subject to a superior claim over our stockholders by the SBA. If we default on our obligations under the Credit Facility or our SBA-guaranteed debentures, the lenders and/or the SBA may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to


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          avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets pledged under our Credit Facility, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding under the Credit Facility.

                 The 1940 Act generally prohibits us from incurring indebtedness unless immediately after such borrowingin the future to avoid being in default. If we have an asset coverage for total borrowingsare unable to implement one or more of at least 200% (i.e., the amount of debtthese alternatives, we may not exceed 50% ofbe able to meet our payment obligations under the value ofCredit Facility, the Notes and our assets). However, legislation passed in March 2018 has modifiedother debt. If we breach our covenants under the 1940 Act by allowingCredit Facility or under the indentures governing the Notes or other debt and seek a BDCwaiver, we may not be able to increase the maximum amount of leverage it may incur by loweringobtain a waiver from the required asset coverage ratio of 200% to an asset coverage ratio of 150% (i.e., the amount oflenders or debt may not exceed 662/3% of the value of our assets), if certain requirements are met. Under the legislation, we are allowed to increase our leverage capacity if stockholders representing at least a majority of the votes cast, when a quorum is met, approve a proposal to do so.holders. If we receive stockholder approval,this occurs, we would be allowedin default under the Credit Facility, the Notes or other debt, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to increase our leverage capacity onrepay debt, lenders having secured obligations could proceed against the first day after such approval. Alternatively,collateral securing the legislation allows a "required majority" (as defined in Section 57(o) ofdebt. Because the 1940 Act) ofCredit Facility has, and any future credit facilities will likely have, and the members of our board of directors to approve an increase in our leverage capacity, and such approval would become effective after one year fromindentures governing the date of approval. In either case, we would be required to make certain disclosures on our website and in SEC filings regarding, among other things,Notes have customary cross-default provisions, if the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. As a result of this legislation,indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due.

          RISKS RELATING TO OUR SECURITIES

          Investing in our securities may involve a high degree of risk.

          The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

          Shares of closed-end investment companies, including BDCs, may trade at a discount to their net asset value.

          Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value. In addition, if our common stock trades below our net asset value per share, we will generally not be able to increaseissue additional common stock at the market price unless our leverage up to an amount that reducesstockholders approve such a sale and our asset coverage ratio from 200% to 150% (i.e., the amountBoard of debt may not exceed 662/3% of the value of our assets).Directors makes certain determinations. See "Risk“Risk Factors — Risks Relating to Our Business and StructureSecurities — BecauseStockholders may incur dilution if we borrow money,sell shares of our common stock in one or more offerings at prices below the potential for gainthen current net asset value per share of our common stock or loss on amounts invested in us is magnified and may increase the riskissue securities to subscribe to, convert to or purchase shares of investing in us"our common stock” for a discussion related to us issuing shares of the risks associated with leverage.our common stock below net asset value.

          Further downgrades42


          Table of the U.S. credit rating, automatic spending cuts or another government shutdown could negatively impactContents

          The market price of our liquidity, financial conditionsecurities may be volatile and earnings.fluctuate significantly.

                 Recent U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recessionFluctuations in the U.S. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, ratings agencies have lowered or threatened to lower the long-term sovereign credit rating on the United States. The impacttrading prices of this or any further downgrades to the U.S. government's sovereign credit rating or its perceived creditworthiness couldour securities may adversely affect the U.S.liquidity of the trading market for our securities and, if we seek to raise capital through future securities offerings, our ability to raise such capital. The market price and liquidity of the market for our securities may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

          significant volatility in the market price and trading volume of securities of BDCs or other companies in our sector, which are not necessarily related to the operating performance of these companies;
          changes in regulatory policies, accounting pronouncements or tax guidelines, particularly with respect to RICs, BDCs or SBICs;
          the exclusion of BDC common stock from certain market indices, such as what happened with respect to the Russell indices and the Standard and Poor’s indices, could reduce the ability of certain investment funds to own our common stock and limit the number of owners of our common stock and otherwise negatively impact the market price of our common stock;
          inability to obtain any exemptive relief that may be required by us in the future from the SEC;
          loss of our BDC or RIC status or any of the Funds’ status as an SBIC;
          changes in our earnings or variations in our operating results;
          changes in the value of our portfolio of investments;
          any shortfall in our investment income or net investment income or any increase in losses from levels expected by investors or securities analysts;
          loss of a major funding source;
          fluctuations in interest rates;
          the operating performance of companies comparable to us;
          departure of our key personnel;
          proposed, or completed, offerings of our securities, including classes other than our common stock;
          global or national credit market changes; and
          general economic trends and other external factors.

          Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock.

          The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2020 annual meeting of stockholders because our common stock price per share had been trading significantly above the net asset value per share of our common stock since 2011. We may, however, seek such authorization at future annual or special meetings of stockholders. Our stockholders have previously approved a proposal to authorize us to

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          issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders’ best interests.

          If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a stockholder’s interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock. Any such exercise would be dilutive on the voting power of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other economic aspects of the common stock.

          Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted; however, the example below illustrates the effect of dilution to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares.

          Illustration: Example of Dilutive Effect of the Issuance of Shares Below Net Asset Value. Assume that Company XYZ has 1,000,000 total shares outstanding, $15,000,000 in total assets and $5,000,000 in total liabilities. The net asset value per share of the common stock of Company XYZ is $10.00. The following table illustrates the reduction to net asset value, or NAV, and the dilution experienced by Stockholder A following the sale of 40,000 shares of the common stock of Company XYZ at $9.50 per share, a price below its NAV per share.

          Prior to Sale
          Below NAV

          Following Sale
          Below NAV

          Percentage
          Change

          Reduction to NAV

          Total Shares Outstanding

          1,000,000

          1,040,000

          4.0%

          NAV per share

          $10.00

          $9.98

          (0.2)%

          Dilution to Existing Stockholder

          Shares Held by Stockholder A

          10,000

          10,000(1)

          0.0%

          Percentage Held by Stockholder A

          1.00%

          0.96%

          (3.8)%

          Total Interest of Stockholder A in NAV

          $100,000

          $99,808

          (0.2)%


          (1)

          Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

          Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.

          The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.

          The Notes are unsecured and therefore effectively subordinated to any current or future secured indebtedness, including indebtedness under the Credit Facility.

          The Notes are not secured by any of our assets or any of the assets of our subsidiaries and rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value

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          of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. As of December 31, 2020, we had $269.0 million outstanding under the Credit Facility out of $780.0 million in commitments. The indebtedness under the Credit Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.

          The Notes are structurally subordinated to the indebtedness and other liabilities of our subsidiaries.

          The Notes are obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness and as a result the Notes are structurally subordinated to the indebtedness of these subsidiaries. For example, as of December 31, 2020, the Funds had collectively issued $309.8 million of the current regulatory maximum of $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” for more detail on the SBA-guaranteed debentures.

          Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes are structurally subordinated to all indebtedness, including the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

          The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained.

          The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained. If the Notes are traded, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. Accordingly, we cannot assure you that a liquid trading market has been or will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

          A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes, if any, or change in the debt markets could cause the liquidity or market value of the Notes to decline significantly.

          Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. We undertake no obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The Notes are currently rated by Standard & Poor’s Ratings Services (“S&P”). There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. In this regard, in March 2020, in connection with the onset of the COVID-19 pandemic, S&P downgraded our long-term issuer rating to "BBB–" with an

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          "Outlook Stable." Further downgrades to us or our securities could increase our cost of capital or otherwise have a negative effect on our results of operations and financial condition. The conditions of the financial markets and economic conditions. Absent further quantitative easing by the Federal Reserve, these developments could causeprevailing interest rates have fluctuated in the past and borrowing costsare likely to rise,fluctuate in the future, which may negatively impact our ability to access the debt markets on favorable terms. In addition, disagreement over the federal budget has caused the U.S. federal government to shut down for periods of time. Continued adverse political and economic conditions could have a materialan adverse effect on our business, financial condition and resultsthe market prices of operations.the Notes.

                 LIBOR isholders of the basic rate of interest used in lending transactions between banks on the London interbank market and is widely used as a reference for setting the interest rate on loans globally. We typically use LIBOR as a reference rate in floating-rate loans we extend to portfolio companies such that the interest due to us pursuant to a term loan extended to a portfolio company is calculated using LIBOR.Notes. The terms of the indentures and the Notes do not restrict our debt investments generally include minimum interest rate floors which are calculated based on LIBOR.


          Tableor any of Contents

                 On July 27, 2017, the United Kingdom's Financial Conduct Authority, which regulates LIBOR, announcedour subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that it intends to phase out LIBOR by the end of 2021. It is unclear if at that time whether LIBOR will cease to exist or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. As such, the potential effect of any such event on our net investment income cannot yet be determined. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, is considering replacing U.S. dollar LIBOR with a new index calculated by short term repurchase agreements, backed by Treasury securities. If LIBOR ceases to exist, we may need to renegotiate the credit agreements extending beyond 2021 with our portfolio companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with the new standard that is established. In addition, any further changes or reforms to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on investments in the Notes. In particular, the terms of the indentures and the Notes do not place any restrictions on our or our subsidiaries’ ability to:

          issue securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries, in each case other than an incurrence of indebtedness or other obligation that would cause a violation of Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act or any successor provisions, but giving effect, in each case, to any exemptive relief granted to us by the SEC (currently, this provision generally prohibits us from making additional borrowings, including through the issuance of additional debt or the sale of additional debt securities, unless our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) after such borrowings);
          pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities ranking junior in right of payment to the Notes, including subordinated indebtedness;
          sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets);
          enter into transactions with affiliates;
          create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions;
          make investments; or
          create restrictions on the payment of dividends or other amounts to us from our subsidiaries.

          Furthermore, the terms of the indentures and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.

          Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for holders of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

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          Other debt we issue or incur in the future could contain more protections for its holders than the indentures and the Notes, including additional covenants and events of default. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

          The optional redemption provision may materially adversely affect your return on the Notes.

          The Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.

          We may not be able to repurchase the Notes upon a Change of Control Repurchase Event.

          We may not be able to repurchase the Notes upon certain change in control events described in the indentures under which the Notes were issued (each, a “Change of Control Repurchase Event”) because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the Notes may require us to repurchase for cash some or all of the Notes at a repurchase price equal to 100% of the aggregate principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facility provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. Our and our subsidiaries’ future financing facilities may contain similar restrictions and provisions. Our failure to purchase such tendered Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indentures governing the Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness.

          If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.

          As of December 31, 2020, we had approximately $1,213.8 million of principal indebtedness, including $269.0 million outstanding under the Credit Facility, $309.8 million outstanding from SBA-guaranteed debentures, $185.0 million of the 4.50% Notes and $450.0 million of the 5.20% Notes outstanding. Any default under the agreements governing our indebtedness, including a default under the Credit Facility, under the Notes or under other indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value forof the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facility or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.

          We may in the future determine to issue preferred stock, which could adversely affect the market value of our common stock.

          The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the market price for our common stock

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          by making an investment in the common stock less attractive. In addition, the dividends on any LIBOR-linked securities, loanspreferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other financial obligations or extensionspayments to our common stockholders, and holders of credit held by or duepreferred stock are not subject to us and could have a material adverse effect on our business, financial condition and results of operations.

                 We could experience fluctuations in our operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the levelany of our expenses variationsor losses and are not entitled to participate in andany income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the timing1940 Act, preferred stock constitutes a “senior security” for purposes of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, operating results for any period should not be relied upon as being indicative of performance in future periods.

                 Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.coverage test.

          To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

          The Annual Distribution Requirement for a RIC will be satisfied if we distribute to our stockholders on an annual basis at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% U.S. federal excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. For more information regarding tax treatment, see “Business — Regulation — Taxation as a Regulated Investment Company.” Because we use debt financing, we are subject to certain asset coverage ratio requirements under the 1940 Act and are (and may in the future become) subject to certain financial covenants under loan and credit agreements that could, under certain circumstances, restrict us from making distributions necessary to satisfy the distribution requirement. In addition, because we receive non-cash sources of income such as PIK interest which involves us recognizing taxable income without receiving the cash representing such income, we may have difficulty meeting the distribution requirement. If we are unable to obtain cash from other sources, we could fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax.
          The source-of-income requirement will be satisfied if we obtain at least 90% of our gross income for each year from distributions, interest, gains from the sale of stock or securities or similar sources.
          The asset diversification requirement will be satisfied if we meet certain asset diversification requirements at the end of each quarter of our taxable year. To satisfy this requirement, at least 50% of the value of our assets must consist of cash, cash equivalents, U.S. government securities, securities of other RICs, and other acceptable securities; and no more than 25% of the value of our assets can be invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain “qualified publicly traded partnerships.”

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          Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments are in privately held companies, and therefore illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.

                 We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants, each of the Funds' compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future.

                 When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for U.S. federal income tax purposes, which may result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

          We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument, if we invest in a debt investment at a discount to the par value of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or

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          PIK, interest, which represents contractual interest


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          added to the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis. For the year ended December 31, 2018,2020, (i) approximately 1.0%2.8% of our total investment income was attributable to PIK income not paid currently in cash, (ii) approximately 0.5%0.3% of our total investment income was attributable to amortization of original issue discount, (iii) approximately 1.0%0.8% of our total investment income was attributable to cumulative dividend income not paid currently in cash, and (iv) approximately 2.5%2.3% of our total investment income was attributable to amortization of market discount on loans purchased in the secondary market at a discount.

          Since, in certain cases, we may recognize taxable income before or without receiving cash representing such income, we may have difficulty meeting the Annual Distribution Requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. For additional discussion regarding the tax implications of a RIC, please see "Business“Business — Regulation — Taxation as a Regulated Investment Company."

          We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

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          Each of the Funds, as an SBIC, may be unable to make distributions to us that will enable us to meet or maintain RIC status, which could result in the imposition of an entity-level tax.

          In order for us to continue to qualify for RIC tax treatment and to minimize corporate-level U.S. federal taxes, we will be required to distribute substantially all of our net ordinary taxable income and net capital gain income, including taxable income from certain of our subsidiaries, which includes the income from the Funds. We will be partially dependent on the Funds for cash distributions to enable us to meet the RIC


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          distribution requirements. The Funds may be limited by SBIC regulations from making certain distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA'sSBA’s restrictions for the Funds to make certain distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance with the SBIC regulations may result in loss of RIC tax treatment and a consequent imposition of an entity-level tax on us.

          In order to satisfy the requirements applicable to a RIC and to minimize corporate-level U.S. federal taxes, we intend to distribute to our stockholders substantially all of our net ordinary taxable income and net capital gain income. We may carry forward excess undistributed taxable income into the next year, net of the 4% U.S. federal excise tax.year. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. As a BDC, we generally are required to meet an asset coverage ratio, as defined in the 1940 Act, of at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. This requirement limits the amount that we may borrow and may prohibit us from making distributions. Because we will continue to need capital to grow our Investment Portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so.

          While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on favorable terms, or at all. In addition, as a BDC, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval. If additional funds are not available to us, we could be forced to curtail or cease new investment activities, and our net asset value could decline.

                 The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations.share. We did not seek stockholder authorization to sell shares of our common stock below the then

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          current net asset value per share of our common stock at our 20182020 annual meeting of stockholders because our common stock price per share had been trading significantly above the net asset value per share of our common stock. stock since 2011.

          We may however, seek such authorization at future annualexperience fluctuations in our operating results.

          We could experience fluctuations in our operating results due to a number of factors, including our ability or special meetingsinability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of stockholders. Our stockholders have previously approved a proposal to authorize us to issue securities to subscribe to, convert to, or purchase sharesportfolio dividend and fee income, the level of our common stockexpenses, variations in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders' best interests.

                 If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a stockholder's interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock. Any such exercise would be dilutive on the voting power


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          of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other economic aspects of the common stock.

                 Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted; however,recognition of realized and unrealized gains or losses, the example below illustrates the effect of dilutiondegree to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares.

           
           Prior to Sale
          Below NAV
           Following Sale
          Below NAV
           Percentage
          Change
           

          Reduction to NAV

                    

          Total Shares Outstanding

            1,000,000  1,040,000  4.0% 

          NAV per share

           $10.00 $9.98  (0.2)% 

          Dilution to Existing Stockholder

                    

          Shares Held by Stockholder A

            10,000  10,000(1) 0.0% 

          Percentage Held by Stockholder A

            1.00%  0.96%  (3.8)% 

          Total Interest of Stockholder A in NAV

           $100,000 $99,808  (0.2)% 

          (1)
          Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

                 We, the Funds, and our portfolio companies are subject to applicable local, state and federal laws and regulations. New legislation may be enacted or new interpretations, rulings or regulations could be adopted, including those governing the types of investmentswhich we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive effect. In addition, any change to the SBA's current debenture SBIC program could have a significant impact on our ability to obtain lower-cost leverage through the Funds, and therefore, our ability to compete with other finance companies.

                 Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may resultencounter competition in our investment focus shifting from the areasmarkets and general economic conditions. As a result of expertisethese factors, operating results for any period should not be relied upon as being indicative of our investment team to other types of investmentsperformance in which our investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.

                 On December 20, 2017, the U.S. House of Representatives and the U.S. Senate each voted to approve H.R. 1 (the "Tax Cuts and Jobs Act") and, on December 22, 2017, President Trump signed the Tax Cuts and Jobs Act into law. The Tax Cuts and Jobs Act made significant changes to the U.S. federal income tax rules applicable to both individuals and entities, including corporations. The Tax Cuts and Jobs Act includes provisions that, among other things, reduce the U.S. corporate tax rate, introduce a capital investment deduction, limit the interest deduction, limit the use of net operating losses to offset future taxable income


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          and make extensive changes to the U.S. international tax system. Treasury and the Internal Revenue Service continue to release guidance in the form of regulations providing rules for implementation and interpretation of the Tax Cuts and Jobs Act provisions. Uncertainty remains regarding significant provisions of the Tax Cuts and Jobs Act while some of the Treasury regulations and guidance remain in proposed form. Accordingly, we cannot predict any additional future impact the enactment of such legislation will have on us, our subsidiaries, our portfolio companies and the holders of our securities.

          Terrorist acts, acts of war, public health crises (including the recent coronavirus outbreak) or natural disasters may disrupt our operations, as well as the operations of the businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, public health crises, or natural disasters could further weaken the domestic/global economies and create additional uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating results and financial condition. Losses from terrorist attacks, public health crises and natural disasters are generally uninsurable.

          Our business is highly dependent on our and third parties'parties’ communications and information systems. Any failure or interruption of those systems, including as a result of the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

          The occurrence of a disaster such as a cyber-attack, a natural catastrophe, an industrial accident, a terrorist attack or war, events unanticipated in our disaster recovery systems, or a support failure from external providers, could have an adverse effect on our ability to conduct business and on our results of operations and financial condition, particularly if those events affect our computer-based data processing, transmission, storage, and retrieval systems or destroy data. If a significant number of our managers were unavailable in the event of a disaster, our ability to effectively conduct our business could be severely compromised.

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          We depend heavily upon computer systems to perform necessary business functions. Despite our implementation of a variety of security measures, our computer systems could be subject to cyber-attacks and unauthorized access, such as physical and electronic break-ins or unauthorized tampering. Like other companies, we may experience threats to our data and systems, including malware and computer virus attacks, unauthorized access, system failures and disruptions. If one or more of these events occurs, it could potentially jeopardize the confidential, proprietary and other information processed and stored in, and transmitted through, our computer systems and networks, or otherwise cause interruptions or malfunctions in


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          our operations, which could result in damage to our reputation, financial losses, litigation, increased costs, regulatory penalties and/or customer dissatisfaction or loss.

          RISKS RELATED TO OUR INVESTMENTS

                 Investing in our portfolio companies exposes us indirectly to a number of significant risks. Among other things, these companies:

                 In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors)administrators, and the diversionissuers of management time and resources.

                 A decline in oil and natural gas prices could adversely affect (i) the credit qualitywhich we invest) may also be sources or targets of our debt investments and (ii) the underlying operating performance of our equity investments in energy-related businesses and in portfolio companies located in geographic areas which are more sensitive to the health of the oil and gas industries. A decrease in credit quality and the operating performance would, in turn, negatively affect the fair value of these investments, which would consequently negatively affect our net asset value. Should a decline in oil and natural gas prices persist for an extended period of time, it is likely that the ability of these investments to satisfy financial or operating covenants imposed by uscyber security or other lenders will be adversely affected, thereby negatively impacting their financial conditiontechnological risks. While we engage in actions to reduce our exposure resulting from outsourcing, we cannot control the cyber security plans and their ability to satisfy their debt servicesystems put in place by these third parties and other obligations to us. Likewise, should a decline in oil and natural gas prices persist, it is likely that our energy-related portfolio companies' and other affected companies' cash flow and profit generating


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          capacities would also be adversely affected thereby negatively impacting their ability to pay us dividends or distributions on our equity investments.

                 Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such loan's term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required to be included in taxable and accounting income prior to receipt of cash, including the following:

                 We invest in companies whose securities are not publicly traded, and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price, and, as a result, we may suffer losses.

                 We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in need of such an investment,ongoing threats may result in a missed opportunity for usunauthorized access, loss, exposure or destruction of data, or other cybersecurity incidents, with increased costs and other consequences, including those described above. Privacy and information security laws and regulation changes, and compliance with those changes, may also result in cost increases due to increase our participation in a successful operation, may reduce our ability to protect an existing investment or may reduce the expected yield on the investment.


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                 We invest primarily in the secured term debt of LMM, Private Loan and Middle Market companies and equity issued by LMM companies. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

                 Even though we may have structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, and based upon principles of equitable subordination as defined by existing case law, a bankruptcy court could subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investmentsystem changes and the senior lender has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower's business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender liability claim, including as a resultdevelopment of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

                 Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company prohibiting the incurrence of additional secured debt without the senior lender's consent. Prior to and as a condition of permitting the portfolio company to borrow money from us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of bankruptcy or other default. In many such cases, the senior lender will require us to enter into an "intercreditor agreement" prior to permitting the portfolio company to borrow from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver of defaults under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the proceeds of any collateral securing some of our loans.


          Table of Contentsnew administrative processes.

                 Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors. Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an unsecured claim against the company's remaining assets, if any.

                 We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market's assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See "Risk Factors — Risks Relating to Our Business and Structure — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code."

                 We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company will take risks or otherwise act in ways that do not serve our interests as debt investors or minority equity holders. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

                 A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company's ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.

                 As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an indication of a portfolio company's inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity investments. This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.


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                 We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.

                 Some of our debt investments will bear interest at variable rates and may be negatively affected by changes in market interest rates. An increase in market interest rates would increase the interest costs and reduce the cash flows of our portfolio companies that have variable rate debt instruments, a situation which could reduce the value of the investment. The value of our investments could also be reduced from an increase in market interest rates as rates available to investors could make an investment in our securities less attractive than alternative investments. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Conversely, decreases in market interest rates could negatively impact the interest income from our variable rate debt investments. A decrease in market interest rates may also have an adverse impact on our returns by requiring us to accept lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to redeploy capital at potentially lower rates. See further discussion and analysis at "Item 7A. Quantitative and Qualitative Disclosures about Market Risk".

                 Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment documents if the issuer is in financial distress.

                 Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in securities of U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and


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          issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

                 Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.

          RISKS RELATING TO OUR SECURITIES

                 Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value. In addition, if our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. See "Risk Factors — Risks Relating to Our Business and Structure — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion related to us issuing shares of our common stock below net asset value.

                 Delays in investing the net proceeds raised in an offering or other capital raised or proceeds resulting from exiting an investment may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of any offering or other capital raised or proceeds resulting from exiting an investment on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.

                 We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in securities meeting our investment objective. During this period, we may invest the capital primarily in marketable securities and idle funds investments, which generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments and may produce returns that are significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. Most of the debt investments that meet our investment criteria are, or would be if rated, below investment grade quality. Indebtedness of below investment grade quality, which is often referred to as "junk," is regarded as having predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal. As a result, any distributions that we pay during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment objective. In addition, until such time as the net proceeds of any offering or from exiting an investment or other capital are invested in new securities meeting our investment objective, the market price for our securities may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities meeting our investment objective.


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                 The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

                 Fluctuations in the trading prices of our securities may adversely affect the liquidity of the trading market for our securities and, if we seek to raise capital through future securities offerings, our ability to raise such capital. The market price and liquidity of the market for our securities may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

                 The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.


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                 The Notes are not secured by any of our assets or any of the assets of our subsidiaries and rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. As of December 31, 2018, we had $301.0 million outstanding under the Credit Facility out of $705.0 million in commitments. The indebtedness under the Credit Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.

                 The Notes are obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness and as a result the Notes are structurally subordinated to the indebtedness of these subsidiaries. For example, as of December 31, 2018, the Funds had collectively issued $345.8 million of the current regulatory maximum of $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources" for more detail on the SBA-guaranteed debentures.

                 Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes are structurally subordinated to all indebtedness, including the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

                 The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained. If the Notes are traded, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. Accordingly, we cannot assure you that a liquid trading market has been or will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.


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                 Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. We undertake no obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The Notes are currently rated by Standard & Poor's Ratings Services. There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. The conditions of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes.

                 The indentures under which the Notes were issued offer limited protection to holders of the Notes. The terms of the indentures and the Notes do not restrict our or any of our subsidiaries' ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on investments in the Notes. In particular, the terms of the indentures and the Notes do not place any restrictions on our or our subsidiaries' ability to:

                 Furthermore, the terms of the indentures and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.


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                 Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

                 Other debt we issue or incur in the future could contain more protections for its holders than the indentures and the Notes, including additional covenants and events of default. For example, the indentures under which the Notes are issued do not contain cross-default provisions that are contained in the Credit Facility. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

                 The Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.

                 We may not be able to repurchase the Notes upon certain change in control events described in the indentures under which the Notes were issued (each, a "Change of Control Repurchase Event") because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the Notes may require us to repurchase for cash some or all of the Notes at a repurchase price equal to 100% of the aggregate principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facility provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. In addition, the occurrence of a Change of Control Repurchase Event enabling the holders of the Notes to require the mandatory purchase of the Notes would constitute an event of default under our Credit Facility entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. Our and our subsidiaries' future financing facilities may contain similar restrictions and provisions. Our failure to purchase such tendered Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indentures governing the Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness.

                 As of December 31, 2018, we had approximately $1,006.8 million of principal indebtedness, including $301.0 million outstanding under the Credit Facility, $345.8 million outstanding from SBA-guaranteed debentures, $175.0 million of the 4.50% Notes due 2019 and $185.0 million of the 4.50% Notes due 2022 outstanding. Any default under the agreements governing our indebtedness, including a default under the Credit Facility, under the Notes or under other indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders


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          under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facility or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.

                 If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under the Credit Facility or the required holders of the Notes or other debt that we may incur in the future to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under the Notes and our other debt. If we breach our covenants under the Credit Facility, the Notes or other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under the Credit Facility, the Notes or other debt, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facility has, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due.

                 The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the market price for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other payments to our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the 1940 Act, preferred stock constitutes a "senior security" for purposes of the asset coverage test.

          Item 1B. Unresolved Staff Comments

          None.

          Item 2. PropertiesProperties

          We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate headquarters.

          Item 3. Legal Proceedings

          We may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise. Furthermore, third parties may seek to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

          Item 4. Mine Safety Disclosures

          Not applicable.


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          PART II

          Item 5. Market for Registrant'sRegistrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

          COMMON STOCK HOLDERS AND DISTRIBUTIONSHOLDERS

          Our common stock is traded on the New York Stock Exchange ("NYSE"(“NYSE”) under the symbol "MAIN." Prior to October 14, 2010,“MAIN.”

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          The following table sets forth, for the periods indicated, the range of high and low closing prices of our common stock was tradedas reported on the NASDAQ Global Select Market underNYSE, and the same symbol "MAIN." Our common stock began trading onsales price as a percentage of the NASDAQ Global Select Market on October 5, 2007. Prior to that date, there was no established public trading market fornet asset value per share of our common stock.

          Premium 

           

          Premium of

          (Discount) of

          High Sales

          Low Sales

           

          Price Range

          Price to

          Price to

           

              

          NAV(1)

              

          High

              

          Low

              

          NAV(2)

              

          NAV(2)

           

          Year ending December 31, 2021

            

            

            

            

            

          First Quarter (through February 25, 2021)

          *

          $

          36.92

          $

          31.35

          *

           

          *

          Year ending December 31, 2020

            

           

            

           

            

            

           

            

          Fourth Quarter

          $

          22.35

          $

          32.59

          $

          27.39

          46

          %  

          23

          %

          Third Quarter

           

          21.52

           

          33.01

           

          28.66

          53

          %  

          33

          %

          Second Quarter

           

          20.85

           

          35.82

           

          17.34

          72

          %  

          (17)

          %

          First Quarter

           

          20.73

           

          45.00

           

          15.74

          117

          %  

          (24)

          %

          Year ending December 31, 2019

           

            

           

            

           

            

            

           

            

          Fourth Quarter

          $

          23.91

          $

          43.68

          $

          41.27

          83

          %  

          73

          %

          Third Quarter

           

          24.20

           

          44.34

           

          40.90

          83

          %  

          69

          %

          Second Quarter

           

          24.17

           

          41.80

           

          37.49

          73

          %  

          55

          %

          First Quarter

           

          24.41

           

          39.21

           

          33.99

          61

          %  

          39

          %


          (1)Net asset value per share, or NAV, is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on the date of the high and low closing prices. The net asset values shown are based on outstanding shares at the end of each period. Net asset value has not yet been determined for the first quarter of 2021.
          (2)Calculated for each quarter as (i) NAV subtracted from the respective high or low share price divided by (ii) NAV.

          On February 27, 2019,25, 2021, the last sale price of our common stock on the NYSE was $35.70 per share, and there were approximately 346428 holders of record of the common stock which did not include stockholders for whom shares are held in "nominee"“nominee” or "street“street name."” The net asset value per share of our common stock on December 31, 2020 was $22.35, and the premium of the February 25, 2021 closing price of our common stock was 60% to this net asset value per share.

          Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of common stock have traded at prices both less than and exceeding our net asset value per share.

          DIVIDEND/DISTRIBUTION POLICY

          We currently pay regular monthlyintend to distribute dividends or make distributions to our stockholders out of assets legally available for distribution. Our dividends and semiannual supplemental dividends to our stockholders. Our monthly dividends,other distributions, if any, will be determined by our Board of Directors from time to time. Our ability to declare dividends depends on a quarterly basis. Our semiannual supplemental dividends, if any, will also be determined byour earnings, our overall financial condition (including our liquidity position), maintenance of our RIC status and such other factors as our Board of Directors on a periodic basis. During 2018,may deem relevant from time to time. When we make distributions, we are required to determine the extent to which such distributions are paid supplemental dividendsout of $0.275 per share in each of June and December 2018, regular monthly dividends of $0.190 per share for each month of January through September 2018, regular monthly dividends of $0.195 per share for each month of October through December 2018, with such dividends totaling $2.845 per share. The 2018 regular monthly dividends of $2.295 per share, represent a 2.7% increase from the regular monthly dividends paid per share for the year ended 2017. For tax purposes, the 2018 dividends, which included the effects of dividends on an accrual basis, total $2.85 per share and were comprised of (i) ordinary income totaling approximately $2.270 per share, (ii) long term capital gain totaling approximately $0.375 per share, and (iii) qualified dividend income totaling approximately $0.205 per share. As we have previously discussed, it is our current intention to fully absorb our semi-annual supplemental dividends into our regular monthly dividends, and in the process maintain and grow our total combined dividends, by gradually reducing our semi-annual supplemental dividends while increasing our regular monthly dividends over multiple years beginning in 2019.

                 In accordance with the IRC sections 871(k) and 881(e), the following percentages represent the portion of our dividends that constitute interest related dividends and short-termor accumulated earnings, recognized capital gains dividends for non-U.S. residents and foreign corporations. Including the long-term capital gains discussed above, the following percentages represent the total dividends which are exempt from U.S. withholding tax.

          Payment Dates
           Interest-Related Dividends
          and Short-Term
          Capital Gain Dividend
           Distributions Exempt
          from U.S.
          Withholding Tax(1)
           

          2/15/2018

            78.48% 78.73%

          From 3/15/2018 to 6/26/2018

            61.51% 61.51%

          7/16/2018

            0.00% 100.00%

          8/15/2018

            0.00% 97.20%

          9/14/2018

            16.04% 16.04%

          From 10/15/2018 to 1/15/2019

            55.00% 55.00%

          (1)
          The percentage for each period represents the portion of the taxable ordinary income dividends eligible for exemption from United States withholding tax for non-U.S. residents and foreign corporations.

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          or capital. To the extent non-U.S. resident taxes were withheld on ordinary dividends distributed, this information may be considered in connection with any claims for refundthere is a return of such taxes to be filed by the non-U.S. resident stockholder with the Internal Revenue Service.

                 To obtain and maintain RIC tax treatment, we must, among other things, distribute at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. We will be subject to a 4% non-deductible U.S. federal excise tax on certain undistributed taxable income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax. Dividends declared and paid by us in a year will generally differ from taxable income for that year, as such dividends may include the(a distribution of current year taxable income, less amounts carried over into the following year, and the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, westockholders' invested capital), investors will be required to payreduce their basis in our stock for federal tax purposes. In the 4% U.S. federal excise tax on the excess of 98% of our annual investment company taxable income and 98.2% of our capital gain net income overfuture, our distributions for the year. We may retain for investment some or allinclude a return of our net capital gains (i.e., realized net long-term capital gains in excess of realized net short-term capital losses) and treat such amounts as deemed distributions to our stockholders. If we do this, our stockholders will be treated as if they had received actual distributions of the capital gains we retained and then reinvested the net after-tax proceeds in our common stock. In general, our stockholders also would be eligible to claim a tax credit (or, in certain circumstances, a tax refund) equal to their allocable shares of the tax we paid on the capital gains deemed distributed to them. We can offer no assurance that we will achieve results that will permit the payment of any cash distributions and, if we issue senior securities, we may be prohibited from making distributions if doing so causes us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings.capital.

                 We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

          We have adopted a dividend reinvestment and direct stock purchase plan ("DRIP"(the “Plan”) that. The dividend reinvestment feature of the Plan (the “DRIP”) provides for the reinvestment of dividends on behalf of our stockholders,

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          Table of Contents

          unless a stockholder has elected to receive dividends in cash. As a result, if we declare a cash dividend, our stockholders who have not "opted out"“opted out” of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of new shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC'sMSCC’s common stock on a valuation date determined for each dividend by our Board of Directors. Shares purchased in the open market to satisfy the DRIP


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          requirements will be valued based upon the average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs. Our DRIP is administered by itsour transfer agent on behalf of our record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in our DRIP but may provide a similar dividend reinvestment plan for their clients.

          SALES OF UNREGISTERED SECURITIES

          During the year ended December 31, 2018,2020, we issued a total of 394,403517,796 shares of our common stock under the DRIP. These issuances were not subject to the registration requirements of the Securities Act of 1933, as amended. The aggregate value of the shares of our common stock issued under the DRIP during 20182020 was approximately $14.9$16.2 million.

          PURCHASES OF EQUITY SECURITIES

                 None.Upon vesting of restricted stock awarded pursuant to our employee equity compensation plan, shares may be withheld to meet applicable tax withholding requirements. Any withheld shares are treated as common stock purchases by the Company in our consolidated financial statements as they reduce the number of shares received by employees upon vesting (see “Purchase of vested stock for employee payroll tax withholding” in the consolidated statements of changes in net assets for share amounts withheld).

          STOCK PERFORMANCE GRAPH

          The following graph compares the stockholder return on our common stock from October 5, 2007 to December 31, 20182020 with the S&P 500 Index, the Russell 2000 Index, the KBW Regional Bank Index and the Main Street Peer Group (as defined below). This comparison assumes $100.00 was invested on October 5, 2007 (the date our common stock began to trade in connection with our initial public offering) in our common stock and in the comparison groups and assumes the reinvestment of all cash dividends prior to any tax effect. The comparisons in the graph below are based on historical data and are not intended to forecast the possible future performance of our common stock.


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          Table of Contents


          COMPARISON OF STOCKHOLDER RETURN(1)

          Among Main Street Capital Corporation, the S&P 500 Index, the Russell 2000 Index, the KBW

          Regional Bank Index, and the Main Street Peer Group(2)

          (For the Period October 5, 2007 to December 31, 2018)
          2020)

          TOTAL RETURN PERFORMANCE SINCE IPO

          GRAPHICGraphic


          (1)
          Total return includes reinvestment of dividends through December 31, 2018.

          (2)
          The Main Street Peer Group is composed of Apollo Investment Corporation, Ares Capital Corporation, BlackRock Capital Investment Corporation, Blackrock TCP Capital Corp., Capitala Finance Corp., Fidus Investment Corporation, FS KKR Capital Corp., Gladstone Investment Corporation, Goldman Sachs BDC, Inc., Golub Capital BDC, Inc., Hercules Capital, Inc., Medley Capital Corporation, Monroe Capital Corporation, New Mountain Finance Corporation, Newtek Business Services Corp., Oaktree Specialty Lending Corporation, Oaktree Strategic Income Corporation, PennantPark Floating Rate Capital Ltd., PennantPark Investment Corporation, Prospect Capital Corporation, Solar Capital Ltd., Solar Senior Capital Ltd., THL Credit, Inc., TPG Specialty Lending, Inc. and TriplePoint Venture Growth BDC Corp.
          (1)Total return includes reinvestment of dividends through December 31, 2020.
          (2)The Main Street Peer Group is composed of Apollo Investment Corp., Ares Capital Corporation, Barings BDC, Inc., Blackrock Capital Investment Corp., Crescent Capital BDC Inc, TCG BDC, Inc, Capital Southwest Corporation, Fidus Investment Corporation, FS KKR Capital Corp., Gladstone Investment Corporation, Golub Capital BDC, Inc., Goldman Sachs BDC, Inc., Hercules Capital Inc., Monroe Capital Corporation, Newtek Business Services Corp., New Mountain Finance Corporation, Oaktree Strategic Income Corp., Oaktree Specialty Lending Corp., OFS Capital Corporation, PennantPark Floating Rate Capital Ltd., PennantPark Investment Corp., Prospect Capital Corporation, Saratoga Investment Corp., Stellus Capital Investment Corp., Solar Capital Ltd., Solar Senior Capital Ltd, BlackRock TCP Capital Corp., Triplepoint Venture Growth BDC Corp., Sixth Street Specialty Lending, Inc., and WhiteHorse Finance, Inc.

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          Table of Contents

          Item 6. Selected Financial Data

          The selected financial and other data as of and for the years ended December 31, 2020, 2019, 2018, 2017 2016, 2015 and 20142016 have been derived from our consolidated financial statements that have been audited by Grant Thornton LLP, an independent registered public accounting firm.statements. You should read this selected financial and other data in conjunction with our "Management's“Management’s Discussion and Analysis of Financial Condition and Results of Operations"Operations” and the consolidated financial statements and related notes included in this Annual Report on Form 10-K.

          Twelve Months Ended December 31, 

              

          2020

              

          2019

              

          2018

              

          2017

              

          2016

          (dollars in thousands, except per share amounts)

          Statement of operations data:

            

            

            

            

            

          Investment income:

           

            

           

            

           

            

           

            

           

            

          Total interest, fee and dividend income

           

          $

          222,614

          $

          243,373

          $

          233,355

          $

          205,741

          $

          178,165

          Interest from idle funds and other

           

           

           

           

          174

          Total investment income

           

          222,614

          243,373

           

          233,355

           

          205,741

           

          178,339

          Expenses:

           

            

            

           

            

           

            

           

            

          Interest

           

          (49,587)

          (50,258)

           

          (43,493)

           

          (36,479)

           

          (33,630)

          Compensation

           

          (18,981)

          (19,792)

           

          (18,966)

           

          (18,560)

           

          (16,408)

          General and administrative

           

          (12,702)

          (12,546)

           

          (11,868)

           

          (11,674)

           

          (9,284)

          Share‑based compensation

           

          (10,828)

          (10,083)

           

          (9,151)

           

          (10,027)

           

          (8,304)

          Expenses allocated to the External Investment Manager

           

          7,429

          6,672

           

          6,768

           

          6,370

           

          5,089

          Total expenses

           

          (84,669)

          (86,007)

           

          (76,710)

           

          (70,370)

           

          (62,537)

          Net investment income

           

          137,945

          157,366

           

          156,645

           

          135,371

           

          115,802

          Total net realized gain (loss) from investments

           

          (115,947)

          (15,112)

           

          1,341

           

          16,182

           

          29,389

          Realized loss on extinguishment of debt

           

          (534)

          (5,689)

           

          (2,896)

           

          (5,217)

           

          Total net unrealized appreciation (depreciation) from investments

           

          (6,082)

          (10,204)

           

          17,981

           

          42,545

           

          (6,576)

          Total net unrealized appreciation (depreciation) from SBIC debentures

           

          460

          4,450

           

          1,294

           

          6,212

           

          (943)

          Income tax benefit (provision)

           

          13,541

          (1,242)

           

          (6,152)

           

          (24,471)

           

          1,227

          Net increase in net assets resulting from operations attributable to common stock

          $

          29,383

          $

          129,569

          $

          168,213

          $

          170,622

          $

          138,899

          Net investment income per share — basic and diluted

          $

          2.10

          $

          2.50

          $

          2.60

          $

          2.39

          $

          2.23

          Net increase in net assets resulting from operations attributable to common stock per share — basic and diluted

          $

          0.45

          $

          2.06

          $

          2.80

          $

          3.01

          $

          2.67

          Weighted‑average shares outstanding — basic and diluted

           

          65,705,963

           

          62,960,591

           

          60,176,843

           

          56,691,913

           

          52,025,002

          56


           
           Twelve Months Ended December 31, 
           
           2018 2017 2016 2015 2014 
           
           (dollars in thousands, except per share amounts)
           

          Statement of operations data:

                          

          Investment income:

                          

          Total interest, fee and dividend income

           $233,355 $205,741 $178,165 $163,603 $139,939 

          Interest from idle funds and other

                174  986  824 

          Total investment income

            233,355  205,741  178,339  164,589  140,763 

          Expenses:

                          

          Interest

            (43,493) (36,479) (33,630) (32,115) (23,589)

          Compensation

            (18,966) (18,560) (16,408) (14,852) (12,337)

          General and administrative

            (11,868) (11,674) (9,284) (8,621) (7,134)

          Share-based compensation

            (9,151) (10,027) (8,304) (6,262) (4,215)

          Expenses allocated to the External Investment Manager

            6,768  6,370  5,089  4,335  2,048 

          Total expenses

            (76,710) (70,370) (62,537) (57,515) (45,227)

          Net investment income

            156,645  135,371  115,802  107,074  95,536 

          Total net realized gain (loss) from investments

            1,341  16,182  29,389  (21,316) 23,206 

          Realized loss on extinguishment of debt           

            (2,896) (5,217)      

          Total net unrealized appreciation (depreciation) from investments

            17,981  42,545  (6,576) 10,871  (776)

          Total net unrealized appreciation (depreciation) from SBIC debentures

            1,294  6,212  (943) (879) (10,931)

          Income tax benefit (provision)

            (6,152) (24,471) 1,227  8,687  (6,287)

          Net increase in net assets resulting from operations attributable to common stock

           $168,213 $170,622 $138,899 $104,437 $100,748 

          Net investment income per share — basic and diluted

           $2.60 $2.39 $2.23 $2.18 $2.20 

          Net increase in net assets resulting from operations attributable to common stock per share — basic and diluted

           $2.80 $3.01 $2.67 $2.13 $2.31 

          Weighted-average shares outstanding — basic and diluted

            60,176,843  56,691,913  52,025,002  49,071,492  43,522,397 

          Table of Contents

              

          As of December 31, 

              

          2020

              

          2019

              

          2018

              

          2017

              

          2016


           As of December 31, 

           2018 2017 2016 2015 2014 

            
           (dollars in thousands)
            
           

          (dollars in thousands)

          Balance sheet data:

                     

           

            

           

            

           

            

           

            

           

            

          Assets:

                     

           

            

           

            

           

            

           

            

           

            

          Total portfolio investments at fair value

           $2,453,909 $2,171,305 $1,996,906 $1,799,996 $1,563,330 

          $

          2,684,866

          $

          2,602,324

          $

          2,453,909

          $

          2,171,305

          $

          1,996,906

          Marketable securities and idle funds investments

              3,693 9,067 

          Cash and cash equivalents

           54,181 51,528 24,480 20,331 60,432 

           

          31,919

           

          55,246

           

          54,181

           

          51,528

           

          24,480

          Interest receivable and other assets

           40,875 38,725 37,123 37,638 46,406 

           

          49,761

           

          50,458

           

          40,875

           

          38,725

           

          37,123

          Deferred financing costs, net of accumulated amortization

           4,461 3,837 12,645 13,267 14,550 

           

          2,818

           

          3,521

           

          4,461

           

          3,837

           

          12,645

          Deferred tax asset, net

             9,125 4,003  

           

           

           

           

           

          9,125

          Total assets

           $2,553,426 $2,265,395 $2,080,279 $1,878,928 $1,693,785 

          $

          2,769,364

          $

          2,711,549

          $

          2,553,426

          $

          2,265,395

          $

          2,080,279

          Liabilities and net assets:

                     

          Credit facility

           $301,000 $64,000 $343,000 $291,000 $218,000 

          $

          269,000

          $

          300,000

          $

          301,000

          $

          64,000

          $

          343,000

          SBIC debentures at fair value(1)

           338,186 288,483 239,603 223,660 222,781 

           

          303,972

           

          306,188

           

          338,186

           

          288,483

           

          239,603

          5.20% Notes due 2024

           

          451,817

           

          324,595

           

           

           

          4.50% Notes due 2022

           182,622 182,015    

           

          183,836

           

          183,229

           

          182,622

           

          182,015

           

          4.50% Notes due 2019

           174,338 173,616 175,000 175,000 175,000 

           

           

           

          174,338

           

          173,616

           

          175,000

          6.125% Notes

            89,057 90,655 90,738 90,823 

           

           

           

           

          89,057

           

          90,655

          Accounts payable and other liabilities

           17,962 20,168 14,205 12,292 10,701 

           

          20,833

           

          24,532

           

          17,962

           

          20,168

           

          14,205

          Payable for securities purchased

           28,254 40,716 2,184 2,311 14,773 

           

           

           

          28,254

           

          40,716

           

          2,184

          Interest payable

           6,041 5,273 4,103 3,959 4,848 

           

          8,658

           

          7,292

           

          6,041

           

          5,273

           

          4,103

          Dividend payable

           11,948 11,146 10,048 9,074 7,663 

           

          13,889

           

          13,174

           

          11,948

           

          11,146

           

          10,048

          Deferred tax liability, net

           17,026 10,553   9,214 

           

          2,592

           

          16,149

           

          17,026

           

          10,553

           

          Total liabilities

           1,077,377 885,027 878,798 808,034 753,803 

           

          1,254,597

           

          1,175,159

           

          1,077,377

           

          885,027

           

          878,798

          Total net asset value

           1,476,049 1,380,368 1,201,481 1,070,894 939,982 

          Total net assets

           

          1,514,767

           

          1,536,390

           

          1,476,049

           

          1,380,368

           

          1,201,481

          Total liabilities and net assets

           $2,553,426 $2,265,395 $2,080,279 $1,878,928 $1,693,785 

          $

          2,769,364

          $

          2,711,549

          $

          2,553,426

          $

          2,265,395

          $

          2,080,279

          Other data:

                     

          Weighted-average effective yield on LMM debt investments(2),(3)

           12.3% 12.0% 12.5% 12.2% 13.2% 

          Weighted‑average effective yield on LMM debt investments(2),(3)

           

          11.6

          %  

           

          11.8

          %  

           

          12.3

          %  

           

          12.0

          %  

           

          12.5

          %

          Number of LMM portfolio companies

           69 70 73 71 66 

           

          70

           

          69

           

          69

           

          70

           

          73

          Weighted-average effective yield on Middle Market debt investments(2),(3)

           9.6% 9.0% 8.5% 8.0% 7.8% 

          Weighted‑average effective yield on Middle Market debt investments(2),(3)

           

          7.9

          %  

           

          8.6

          %  

           

          9.6

          %  

           

          9.0

          %  

           

          8.5

          %

          Number of Middle Market portfolio companies

           56 62 78 86 86 

           

          42

           

          51

           

          56

           

          62

           

          78

          Weighted-average effective yield on Private Loan debt investments(2),(3)

           10.4% 9.2% 9.6% 9.5% 10.1% 

          Weighted‑average effective yield on Private Loan debt investments(2),(3)

           

          8.7

          %  

           

          9.5

          %  

           

          10.4

          %  

           

          9.2

          %  

           

          9.6

          %

          Number of Private Loan portfolio companies

           59 54 46 40 31 

           

          63

           

          65

           

          59

           

          54

           

          46

          Expense ratios (as percentage of average net assets):

                     

          Total expenses, including income tax expense

           5.7% 7.4% 5.5% 4.6% 5.8% 

           

          5.0

          %  

           

          5.7

          %  

           

          5.7

          %  

           

          7.4

          %  

           

          5.5

          %

          Operating expenses

           5.3% 5.5% 5.6% 5.5% 5.1% 

           

          5.9

          %  

           

          5.7

          %  

           

          5.3

          %  

           

          5.5

          %  

           

          5.6

          %

          Operating expenses, excluding interest expense

           2.3% 2.6% 2.6% 2.4% 2.4% 

           

          2.4

          %  

           

          2.4

          %  

           

          2.3

          %  

           

          2.6

          %  

           

          2.6

          %

          Total investment return(4)

           –8.3% 16.0% 37.4% 8.5% –3.1% 

           

          (19.1)

          %  

           

          36.9

          %  

           

          (8.3)

          %  

           

          16.0

          %  

           

          37.4

          %

          Total return based on change in NAV(5)

           12.2% 14.2% 13.0% 11.1% 12.7% 

           

          1.9

          %  

           

          8.8

          %  

           

          12.2

          %  

           

          14.2

          %  

           

          13.0

          %


          (1)SBIC debentures for December 31, 2020, 2019, 2018, 2017 and 2016 are $309,800, $311,800, $345,800, $298,800 and $240,000 at par, respectively.

          57


          Table of Contents

          (1)
          SBIC debentures for December 31, 2018, 2017, 2016, 2015 and 2014 are $345,800, $295,800, $240,000, $225,000 and $225,000 at par, respectively.

          (2)
          (2)Weighted-average effective yield is calculated based on our debt investments at the end of each period and includes amortization of deferred debt origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect any debt investments on non-accrual status, our expenses or any sales load paid by an investor. For information on our investments on non-accrual status, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Portfolio Asset Quality”.
          (3)Including investments on non-accrual status, the weighted-average effective yield for LMM, Middle Market, and Private Loan debt investments was 10.4%, 7.9%, and 8.4%, respectively, as of December 31, 2020.
          (4)Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by our dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.
          (5)Total return is based on change in net asset value and was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

          58


          Table of each period and includes amortization of deferred debt origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect any debt investments on non-accrual status, our expenses or any sales load paid by an investor. For information on our investments on non-accrual status, see "Management'sContents

          Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Portfolio Asset Quality".

          (3)
          Including investments on non-accrual status, the weighted-average effective yield for LMM, Middle Market, and Private Loan debt investments was 11.3%, 9.5%, and 9.8%, respectively, as of December 31, 2018.

          (4)
          Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by our dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

          (5)
          Total return is based on change in net asset value and was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

          Table of Contents

          Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

          The following discussion should be read in conjunction with our consolidated financial statements and the notes thereto included elsewhere in this Annual Report on Form 10-K.

          Statements we make in the following discussion which express a belief, expectation or intention, as well as those that are not historical fact, are forward-looking statements that are subject to risks, uncertainties and assumptions. Our actual results, performance or achievements, or industry results, could differ materially from those we express in the following discussion as a result of a variety of factors, including the risks and uncertainties we have referred to under the headings "Cautionary“Cautionary Statement Concerning Forward-Looking Statements"Statements” and "Risk Factors"“Risk Factors” in Part I of this report.

          ORGANIZATIONCOVID-19 UPDATE

                 Main Street Capital Corporation ("MSCC") is a principal investment firm primarilyThe COVID-19 pandemic, and the related effect on the U.S. and global economies, has had, and threatens to continue to have, adverse consequences for our business and operating results, and the businesses and operating results of our portfolio companies. During the quarter ended December 31, 2020, we continued to work collectively with our employees and portfolio companies to navigate the significant challenges created by the COVID-19 pandemic. We remain focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investmentsensuring the safety of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

                 MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and otherour employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

                 MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receives fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under the Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

                 MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

                 MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes.

                 Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.


          Tableemployees of Contents

          OVERVIEW

                 Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

                 We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies, while also negotiating favorable transaction termsmanaging our ongoing business activities. In this regard, we remain heavily engaged with our portfolio companies. As discussed below under “Discussion and equity participations. OurAnalysis of Results of Operations,” our investment income, principally our interest and dividend income, was negatively impacted by the economic effects of COVID-19 in 2020. We continue to maintain access to multiple sources of liquidity, including cash, unused capacity under our Credit Facility and remaining SBIC debenture capacity, and from December 31, 2019 to December 31, 2020, our total liquidity improved from $495.5 million to $583.1 million. As of December 31, 2020, we were in compliance with all debt covenants and do not anticipate any issues with our ability to invest across a company's capital structure, from secured loanscomply with all covenants in the future. Refer to equity securities, allows us“—Liquidity and Capital Resources” below for further discussion as of December 31, 2020.

          Neither our management nor our Board of Directors is able to offer portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien onpredict the assetsfull impact of the COVID-19 pandemic, including its duration and the magnitude of its economic and societal impact. As such, while we will continue to monitor the rapidly evolving situation and guidance from U.S. and international authorities, including federal, state and local public health authorities, we are unable to predict with any certainty the extent to which the outbreak will negatively affect our portfolio companycompanies’ operating results and typicallyfinancial condition or the impact that such disruptions may have a termon our results of between fiveoperations and seven years from the original investment date.

                 Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

                 Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred tofinancial condition in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.future.

                 Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.INVESTMENT PORTFOLIO ACTIVITY

                 Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities.


          Table of Contents

          The following tables provide a summary of our investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

              

          As of December 31, 2020

           

          LMM (a)

          Middle Market

          Private Loan

           

          (dollars in millions)

           

          Number of portfolio companies

          70

           

          42

           

          63

          Fair value

          $

          1,285.5

           

          $

          445.6

           

          $

          740.4

          Cost

          $

          1,104.6

           

          $

          488.9

           

          $

          769.0

          Debt investments as a % of portfolio (at cost)

          65.8

          %

          93.0

          %

          93.8

          %

          Equity investments as a % of portfolio (at cost)

          34.2

          %

          7.0

          %

          6.2

          %

          % of debt investments at cost secured by first priority lien

          98.1

          %

          92.4

          %

          95.4

          %

          Weighted-average annual effective yield (b)

          11.6

          %

          7.9

          %

          8.7

          %

          Average EBITDA (c)

          $

          5.3

           

          $

          76.5

           

          $

          58.1


           
           As of December 31, 2018 
           
           LMM(a) Middle Market Private Loan 
           
           (dollars in millions)
           

          Number of portfolio companies

            69  56  59 

          Fair value

           $1,195.0 $576.9 $507.9 

          Cost

           $990.9 $608.8 $553.3 

          % of portfolio at cost — debt

            68.7%  96.3%  93.0% 

          % of portfolio at cost — equity

            31.3%  3.7%  7.0% 

          % of debt investments at cost secured by first priority lien

            98.5%  87.9%  92.0% 

          Weighted-average annual effective yield(b)

            12.3%  9.6%  10.4% 

          Average EBITDA(c)

           $4.7 $99.1 $46.1 

          59


          (a)
          At December 31, 2018, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 40%.

          (b)
          The weighted average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2018, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies, one Middle Market portfolio company and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.


           
           As of December 31, 2017 
           
           LMM(a) Middle Market Private Loan 
           
           (dollars in millions)
           

          Number of portfolio companies

            70  62  54 

          Fair value

           $948.2 $609.3 $467.5 

          Cost

           $776.5 $629.7 $489.2 

          % of portfolio at cost — debt

            67.1%  97.3%  93.6% 

          % of portfolio at cost — equity

            32.9%  2.7%  6.4% 

          % of debt investments at cost secured by first priority lien

            98.1%  90.5%  94.5% 

          Weighted-average annual effective yield(b)

            12.0%  9.0%  9.2% 

          Average EBITDA(c)

           $4.4 $78.3 $39.6 

          (a)
          At December 31, 2017, we had equity ownership in approximately 97% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 39%.

          (b)
          The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2017, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual

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          (a)At December 31, 2020, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 38%.
          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2020, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, one Middle Market portfolio company and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

            effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including six LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

              

          As of December 31, 2019

           

          LMM (a)

          Middle Market

          Private Loan

           

          (dollars in millions)

           

          Number of portfolio companies

          69

           

          51

           

          65

          Fair value

          $

          1,206.9

           

          $

          522.1

           

          $

          692.1

          Cost

          $

          1,002.2

           

          $

          572.3

           

          $

          734.8

          Debt investments as a % of portfolio (at cost)

          65.9

          %

          94.8

          %

          94.6

          %

          Equity investments as a % of portfolio (at cost)

          34.1

          %

          5.2

          %

          5.4

          %

          % of debt investments at cost secured by first priority lien

          98.1

          %

          91.3

          %

          95.4

          %

          Weighted-average annual effective yield (b)

          11.8

          %

          8.6

          %

          9.5

          %

          Average EBITDA (c)

          $

          5.1

           

          $

          85.0

           

          $

          57.8


          (a)At December 31, 2019, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 42%.
          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2019, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, two Middle Market portfolio companies and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

          As of December 31, 2018,2020, we had Other Portfolio investments in twelve companies, collectively totaling approximately $96.6 million in fair value and approximately $124.7 million in cost basis and which comprised approximately 3.6% of our Investment Portfolio at fair value. As of December 31, 2019, we had Other Portfolio investments in eleven companies, collectively totaling approximately $108.3$106.7 million in fair value and approximately $116.0$118.4 million in cost basis and which comprised approximately 4.4% of our Investment Portfolio (as defined in "Critical Accounting Policies — Basis of Presentation" below) at fair value. As of December 31, 2017, we had Other Portfolio investments in eleven companies, collectively totaling approximately $104.6 million in fair value and approximately $109.4 million in cost basis and which comprised approximately 4.8%4.1% of our Investment Portfolio at fair value.

          As previously discussed, the External Investment Manager is a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2018,2020, there was $29.5 million in cost basis in this investment and the investment had a fair value of approximately $116.8 million, which comprised approximately 4.3% of our Investment

          60


          Portfolio at fair value. As of December 31, 2019, there was no cost basis in this investment and the investment had a fair value of approximately $65.7$74.5 million, which comprised approximately 2.7% of our Investment Portfolio at fair value. As of December 31, 2017, there was no cost basis in this investment and the investment had a fair value of approximately $41.8 million, which comprised approximately 1.9%2.9% of our Investment Portfolio at fair value.

                 Our portfolio investments are generally made through MSCCCRITICAL ACCOUNTING POLICIES

          The preparation of financial statements and related disclosures in conformity with GAAP requires management to make estimates and assumptions that affect the Funds. MSCCreported amounts of assets and liabilities, and contingent assets and liabilities at the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes. An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned subsidiaries of MSCC.

                 The level of new portfolio investment activity will fluctuate from period to period based upon our viewdate of the current economic fundamentals, our abilityfinancial statements, and revenues and expenses during the periods reported. Actual results could materially differ from those estimates. Critical accounting policies are those that require management to identify new investment opportunitiesmake subjective or complex judgments about the effect of matters that meet our investment criteria,are inherently uncertain and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating resultsmay change in subsequent periods. Changes that may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gainsrequired in the underlying assumptions or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changesestimates in realized gains and losses and unrealized appreciation or depreciationthese areas could have a material impact on our operating results.current and future financial condition and results of operations.

                 Because weManagement has discussed the development and selection of each critical accounting policy and estimate with the Audit Committee of the Board of Directors. Our critical accounting policies and estimates include the Investment Portfolio Valuation and Revenue Recognition policies described below. Our significant accounting policies are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio. For the years ended December 31, 2018 and 2017, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.4% and 1.6%, respectively.

                 During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment


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          advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreementdescribed in greater detail in Note B to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. The External Investment Manager has conditionally agreed to waive the historical incentive fees otherwise earned. During the years ended December 31, 2018, 2017 and 2016, the External Investment Manager earned $11.6 million, $10.9 million and $9.5 million, respectively, of management fees (net of fees waived, if any) under the sub-advisory agreement with HMS Adviser.

                 During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, both we and the External Investment Manager have policies and procedures in place to manage this conflict.

          CRITICAL ACCOUNTING POLICIES

            Basis of Presentation

                 Our consolidated financial statements are preparedincluded in accordance with generally accepted accounting principles in the United States“Item 8.– Consolidated Financial Statements and Supplementary Data” of America ("U.S. GAAP"). For each of the periods presented herein, our consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and the investment in the External Investment Manager. Our results of operations and cash flows for the years ended December 31, 2018, 2017 and 2016 and financial position as of December 31, 2018 and 2017, are presentedthis Annual Report on a consolidated basis. The effects of all intercompany transactions between us and our consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current presentation.Form 10-K.

                 We are an investment company following the accounting and reporting guidance in Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 946,Financial Services — Investment Companies ("ASC 946"). Under ASC 946, we are precluded from consolidating other entities in which we have equity investments, including those in which we have a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if we hold a controlling interest in an operating company that provides all or substantially all of its services directly to us or to any of our portfolio companies. Accordingly, as noted above, our consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. We have determined that all of our portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, our Investment Portfolio is carried on the consolidated balance sheet at fair value with any adjustments to fair value recognized as "Net Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."


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            Investment Portfolio Valuation

          The most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We consider this determination to be a critical accounting estimate, given the significant judgments and subjective measurements required. As of both December 31, 20182020 and 2017,2019, our Investment Portfolio valued at fair value represented approximately 97% and 96% of our total assets.assets, respectively. We are required to report our investments at fair value. We follow the provisions of FASB ASC 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact. See "Note“Note B.1.—Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

          Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

          Our Board of Directors has the final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio and our valuation procedures, consistent with 1940 Act requirements. We believe our Investment Portfolio as of December 31, 20182020 and 20172019 approximates fair value as of those dates based on the markets in which we operate and other conditions in existence on those reporting dates.

            The SEC recently adopted new Rule 2a-5 under the 1940 Act, which establishes requirements for determining fair value in good faith for purposes of the 1940 Act. We will comply with the new rule’s valuation requirements on or before the SEC’s compliance date in 2022.

          61


          Revenue Recognition

          Interest and Dividend Income

          We record interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with our valuation policies, we evaluate accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security'ssecurity’s status significantly improves regarding the debtor'sdebtor’s ability to service the debt or other obligations, or if a loan or debt security is sold or written off, we remove it from non-accrual status.

            Fee Income

          We may periodically provide services, including structuring and advisory services, to our portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.


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            Payment-in-Kind ("PIK"(“PIK”) Interest and Cumulative Dividends

          We hold certain debt and preferred equity instruments in our Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed below)in “Note B.9.—Income Taxes” in the notes to consolidated financial statements), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though we may not have collected the PIK interest and cumulative dividends in cash. We stop accruing PIK interest and cumulative dividends and write off any accrued and uncollected interest and dividends in arrears when we determine that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2018, 20172020, 2019, and 2016,2018, (i) approximately 1.0%2.8%, 2.4%,2.0% and 3.6%1.0%, respectively, of our total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.0%0.8%, 1.6%,1.0% and 1.2%1.0%, respectively, of our total investment income was attributable to cumulative dividend income not paid currently in cash.

            Share-Based Compensation

                 We account for our share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Stock Compensation. Accordingly, for restricted stock awards, we measure the grant date fair value based upon the market price of our common stock on the date of the grant and amortize the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

                 We have also adopted Accounting Standards Update ("ASU") 2016-09,Compensation — Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) be recognized as income tax expense or benefit in the income statement and not delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. Additionally, we have elected to account for forfeitures as they occur.

            Income Taxes

                 MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

                 The Taxable Subsidiaries primarily hold certain portfolio investments for us. The Taxable Subsidiaries permit us to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with us for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated


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          financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in our consolidated financial statements.

                 The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager's separate financial statements.

                 In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act includes significant changes to the U.S. corporate tax system, including a U.S. federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740,Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation was enacted. As such, we have accounted for the tax effects as a result of the enactment of the Tax Cuts and Jobs Act beginning with the period ended December 31, 2017.

                 The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

                 Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

          INVESTMENT PORTFOLIO COMPOSITION

                 Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Our LMM portfolio companies generally have annual revenues between $10 million and $150 million, and our LMM investments generally range in size from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, can include either fixed or floating rate terms and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, we receive nominally priced equity warrants and/or make direct equity investments in connection with a debt investment.

                 Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our Middle Market portfolio debt


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          investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

                 Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

                 Our Other Portfolio investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

                 Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended December 31, 2018, 2017 and 2016 are net of expenses allocated to the External Investment Manager of $6.8 million, $6.4 million and $5.1 million, respectively. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income received from the External Investment Manager. For the years ended December 31, 2018, 2017 and 2016, the total contribution to our net investment income was $10.6 million, $9.4 million and $7.9 million, respectively.

          The following tables summarize the composition of our total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments as of December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager).

          Cost:

           

          December 31, 2020

           

          December 31, 2019

          First lien debt

           

          77.0

          %  

          78.2

          %

          Equity

           

          19.0

          %  

          17.2

          %

          Second lien debt

           

          2.7

          %  

          3.5

          %

          Equity warrants

           

          0.5

          %  

          0.6

          %

          Other

           

          0.8

          %  

          0.5

          %

           

          100.0

          %  

          100.0

          %

          62


          Cost:
           December 31, 2018 December 31, 2017 

          First lien debt

            77.1%  79.0% 

          Equity

            16.6%  15.3% 

          Second lien debt

            5.3%  4.5% 

          Equity warrants

            0.6%  0.7% 

          Other

            0.4%  0.5% 

            100.0%  100.0% 

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          Fair Value:
           December 31, 2018 December 31, 2017 

           

          December 31, 2020

           

          December 31, 2019

           

          First lien debt

           69.0% 70.5% 

           

          70.0

          %  

          70.1

          %

           

          Equity

           25.5% 24.4% 

           

          26.4

          %  

          26.0

          %

           

          Second lien debt

           4.6% 4.1% 

           

          2.4

          %  

          3.0

          %

           

          Equity warrants

           0.5% 0.6% 

           

          0.4

          %  

          0.4

          %

           

          Other

           0.4% 0.4% 

           

          0.8

          %  

          0.5

          %

           

           

          100.0

          %  

          100.0

          %

           

           100.0% 100.0% 

          Our LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments carry a number of risks including: (1) investing in companies which may have limited operating histories and financial resources; (2) holding investments that generally are not publicly traded and which may be subject to legal and other restrictions on resale; and (3) other risks common to investing in below investment grade debt and equity investments in our Investment Portfolio. Please see "Risk“Risk Factors — Risks Related to Our Investments"Investments” for a more complete discussion of the risks involved with investing in our Investment Portfolio.

          PORTFOLIO ASSET QUALITY

          We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including each investment'sinvestment’s expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company'scompany’s future outlook and other factors that are deemed to be significant to the portfolio company.

          As of December 31, 2018,2020, our total Investment Portfolio had sixseven investments on non-accrual status, which comprised approximately 1.3% of its fair value and 3.9%3.6% of its cost. As of December 31, 2017,2019, our total Investment Portfolio had fiveeight investments on non-accrual status, which comprised approximately 0.2%1.4% of its fair value and 2.3%4.8% of its cost.

          The operating results of our portfolio companies are impacted by changes in the broader fundamentals of the United States economy. In the event thatperiods during which the United States economy contracts, as it has due to the impact of COVID-19, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements, to an increase in defaults on our debt investments or in realized losses on our investments and to difficulty in maintaining historical dividend payment rates and unrealized appreciation on our equity investments. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by future economic cycles or other conditions, which could also have a negative impact on our future results.


          Table of Contents

          DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

          Set forth below is a comparison of the results of operations and changes in financial condition for the years ended December 31, 2020 and 2019. The comparison of, and changes between, the fiscal years ended December 31, 2019 and 2018 can be found within “Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations” included in Part II of our annual report on Form 10-K for the fiscal year ended December 31, 2019, which is incorporated herein by reference.

          Year Ended

           

          December 31, 

          Net Change

              

          2020

              

          2019

              

          Amount

              

          %

          (dollars in thousands, except per share amounts)

           

          Net investment income

          $

          137,945

          $

          157,366

          $

          (19,421)

           

          (12)

          %

          Share‑based compensation expense

           

          10,828

           

          10,083

           

          745

           

          7

          %

          Distributable net investment income(a)

          $

          148,773

          $

          167,449

          $

          (18,676)

           

          (11)

          %

          Net investment income per share—Basic and diluted

          $

          2.10

          $

          2.50

          $

          (0.40)

           

          (16)

          %

          Distributable net investment income per share—Basic and diluted(a)

          $

          2.26

          $

          2.66

          $

          (0.40)

           

          (15)

          %

           
           Twelve Months
          Ended
          December 31,
           Net Change
           
           2018 2017 Amount %
           
           (dollars in thousands)

          Total investment income

           $233,355 $205,741 $27,614 13%

          Total expenses

            (76,710) (70,370) (6,340)9%

          Net investment income

            156,645  135,371  21,274 16%

          Net realized gain from investments

            1,341  16,182  (14,841) 

          Net realized loss on extinguishment of debt

            (2,896) (5,217) 2,321  

          Net unrealized appreciation from:

                     

          Portfolio investments

            17,981  42,545  (24,564) 

          SBIC debentures

            1,294  6,212  (4,918) 

          Total net unrealized appreciation

            19,275  48,757  (29,482) 

          Income tax provision

            (6,152) (24,471) 18,319  

          Net increase in net assets resulting from operations

           $168,213 $170,622 $(2,409)(1)%


           
           Twelve Months
          Ended
          December 31,
           Net Change
           
           2018 2017 Amount %
           
           (dollars in thousands, except per share
          amounts)

          Net investment income

           $156,645 $135,371 $21,274 16%

          Share-based compensation expense

            9,151  10,027  (876)(9)%

          Distributable net investment income(a)

           $165,796 $145,398 $20,398 14%

          Net investment income per share — Basic and diluted

           $2.60 $2.39 $0.21 9%

          Distributable net investment income per share — Basic and diluted(a)

           $2.76 $2.56 $0.20 8%

          (a)

          NM

          Not Meaningful

          (a)Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

          Investment Income

          Total investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

                 For the year ended December 31, 2018, total investment income2020 was $233.4$222.6 million, a 13% increase over9% decrease from the $205.7$243.4 million of total investment income for the corresponding periodprior year. The following table provides a summary of 2017. Thisthe changes in the comparable period increase was principally attributable to (i) a $15.2 million net increase in interest income primarily related to higher average levels of Investment Portfolio debt investments and an increase in their average effectiveactivity.


          Year Ended

          December 31, 

          Net Change

          2020

          2019

          Amount

          %

          (dollars in thousands)

          Interest Income

          $

          173,676

          $

          187,381

          $

          (13,705)

          (7)

          %

          (a)

          Dividend Income

          36,373

          49,782

          (13,409)

          (27)

          %

          (b)

          Fee Income

          12,565

          6,210

          6,355

          102

          %

          (c)

          Total Investment Income

          $

          222,614

          $

          243,373

          $

          (20,759)

          (9)

          %

          (d)

          64



          (a)The decrease in interest income was primarily due to lower floating interest rates on investment portfolio debt investments based upon the decline in the London Interbank Offered Rate (“LIBOR”) and an increase in the level non-accrual investments, partially offset by a $2.5 million increase resulting from increased prepayment, repricing and other activities considered less consistent or non-recurring involving existing Investment Portfolio debt investments.
          (b)The decrease in dividend income was primarily the result of the negative impacts of the COVID-19 pandemic on certain of our portfolio companies’ operating results, financial condition and liquidity, as well as the uncertainty relative to the duration of the pandemic’s effects.
          (c)The increase in fee income was primarily due to (i) a $4.6 million increase in fees from origination of debt investments resulting from higher new investment activity and (ii) a $1.7 million increase in fees from repayment and refinancing activity on existing portfolio investments.
          (d)The decrease in total investment income includes the impact of a $4.2 million increase from accelerated prepayment, repricing and other income activity considered less consistent or non-recurring, which incorporates the $2.5 million increase in interest income from prepayment, repricing and other activities and the $1.7 million increase in fee income from repayment and repricing activity, both as described above.

          Expenses

          yields, partially offset by decreases in interest income associated with activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring and prepayment, repricing and other activities involving existing Investment Portfolio debt investments, (ii) a $11.8 million increase in dividend income from Investment Portfolio equity investments and (iii) a $0.7 million increase in fee income. The $27.6 million increase in total investment income in the year ended December 31, 2018 includes $6.3 million related to elevated dividend income activity from certain Investment Portfolio equity investments that is considered to be less consistent on a recurring basis or non-recurring, partially offset by (i) a decrease of $2.7 million related to interest income activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring and (ii) a decrease of $2.5 million related to lower accelerated prepayment, repricing and other activity for certain Investment Portfolio debt investments, in each case when compared to the same period in 2017.

            Expenses

                 For the year ended December 31, 2018, totalTotal expenses increased to $76.7 million from $70.4 million for the corresponding period of 2017. This comparable period increase in operating expenses was principally attributable to (i) a $7.0 million increase in interest expense, primarily due to an $8.0 million increase as a result of the issuance of our 4.50% Notes due 2022 in November 2017, with the remainder of the difference from prior year due to the higher average balance of SBIC debentures outstanding and an increase in both the average balance outstanding and the interest rate on our multi-year revolving credit facility (the "Credit Facility"), with these increases partially offset by a decrease from the redemption of the 6.125% Notes effective April 1, 2018, and (ii) a $0.4 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals, with these increases partially offset by (i) a $0.9 million decrease in share-based compensation expense, (ii) a decrease of $0.9 million related to an additional decrease in incentive compensation accruals and (iii) a $0.4 million increase in the expenses allocated to the External Investment Manager as a result of elevated non-recurring strategic activities at the External Investment Manager during the year ended December 31, 2018. The $0.4 million increase in compensation expense is after (i) a $1.5 million decrease that is considered to be a one-time non-recurring benefit due to the conversion of a cash bonus to an expected non-cash restricted stock grant for an executive that will be amortized as non-cash, share-based compensation expense over the future service period and (ii) a $0.4 million decrease as a result of the decrease in the fair value of our deferred compensation plan assets. The ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets for the year ended December 31, 2018 was 1.4% on an annualized basis compared2020 decreased to 1.6% for$84.7 million from $86.0 million in the year ended December 31, 2017.prior year. The following table provides a summary of the changes in the comparable period activity.

            Year Ended

            December 31, 

            Net Change

            2020

            2019

            Amount

            %

            (dollars in thousands)

            Employee Compensation Expenses

            $

            18,197

            $

            18,896

            $

            (700)

            (4)

            %

            (a)

            Deferred Compensation Plan Expense

            784

            896

            (112)

            (12)

            %

            Total Compensation Expense

            18,981

            19,792

            (811)

            (4)

            %

            G&A Expense

            12,702

            12,546

            156

            1

            %

            Interest Expense

            49,587

            50,258

            (671)

            (1)

            %

            Share Based Compensation Expense

            10,828

            10,083

            745

            7

            %

            Gross Expenses

            92,098

            92,679

            (581)

            (1)

            %

            Allocation of Expenses to the External Investment Manager

            (7,429)

            (6,672)

            (757)

            11

            %

            (b)

            Total Expenses

            $

            84,669

            $

            86,007

            $

            (1,338)

            (2)

            %


            (a)The decrease in employee compensation expenses was primarily due to a decline in incentive compensation, partially offset by an increase in base compensation expense.
            (b)The increase in expenses allocated to the External Investment Manager was generally attributable to expenses incurred in connection with the transaction by with the External Investment Manager became the sole investment manager to MSC Income.

            Net Investment Income

          Net investment income for the year ended December 31, 2018 was $156.62020 decreased 12% to $137.9 million, or a 16% increase,$2.10 per share, compared to net investment income of $135.4$157.4 million, or $2.50 per share, for the corresponding period of 2017.prior year. The increasedecrease in net investment income was principally attributable to the increasedecrease in total investment income, partially offset by higherlower operating expenses, both as discussed above.

            Distributable Net Investment Income

                 For the year ended December 31, 2018, distributable The decrease in net investment income increased 14% to $165.8 million, or $2.76 per share compared with $145.4 million, or $2.56 per share, inreflects these changes, as well as the corresponding period of 2017. The4.4% increase in distributable net investment income was primarily dueweighted average shares outstanding to the higher level of total investment income, partially offset by higher operating expenses both as discussed above. Distributable net investment income on a per share basis65.7 million for the year ended December 31, 2018 reflects (i) a consistent level of income per share from the comparable period in 2017 attributable to the net effect of the elevated dividend income activity, offset by the decreases in interest income associated with the comparable levels of activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring and accelerated prepayment, repricing and other income activity considered non-recurring, as discussed above,


          Table of Contents

          (ii) an increase of $0.03 per share due to the non-recurring benefit to compensation expense and the decrease in the fair value of the deferred compensation plan assets, both as discussed above, and (iii) a greater number of average shares outstanding compared to the corresponding period in 20172020, primarily due to shares issued through the ATM Program (as defined in "— “—Liquidity and Capital Resources — Resources—Capital Resources"Resources” below), shares issued pursuant to our equity incentive plans and shares issued pursuant to our dividend

          65


          reinvestment plan.

            Net Increase The decline in Net Assets Resulting from Operations

                 The net investment income on a per share basis includes the impacts of an increase of $0.06 per share due to the increase in investment income from accelerated prepayment, repricing and other income activity considered less consistent or non-recurring, as discussed above.

          Distributable Net Investment Income

          Distributable net assets resulting from operations duringinvestment income for the year ended December 31, 2018 was $168.22020 decreased 11% to $148.8 million, or $2.80$2.26 per share, compared with $170.6$167.4 million, or $3.01$2.66 per share, duringin the prior year. The decline in distributable net investment income was primarily due to the decreased level of total investment income, partially offset by lower operating expenses, both as discussed above. The decline in distributable net investment income on a per share basis for the year ended December 31, 2017. This $2.4 million decrease from2020 also reflects a greater number of average shares outstanding compared to the prior year was primarilyand the resultimpacts of (i) a $29.5 million decrease in net unrealized appreciation from portfolio investments and SBIC debentures, including the impact of accounting reversals relating to realized gains/income (losses), and (ii) a $14.8 million decrease in the net realized gain from investments, with these decreases partially offset by (i) a $21.3 million increase in net investment income from accelerated prepayment, repricing and other income activity considered less consistent or non-recurring, both as discussed above, (ii)above.

          Net Realized Gain (Loss) from Investments

          The following table provides a $18.3 million decrease insummary of the income tax provision and (iii) a $2.3 million improvement inprimary components of the total net realized loss on extinguishment of debt. The net realized gain from investments of $1.3$115.9 million for the year ended December 31, 2018 was primarily2020:

          Year Ended December 31, 2020

          Full Exits

          Partial Exits

          Restructures

          Total

          Net Gain/(Loss)

          # of Investments

          Net Gain/(Loss)

          # of Investments

          Net Gain/(Loss)

          # of Investments

          Net Gain/(Loss)

          # of Investments

          (dollars in thousands)

          LMM Portfolio

          $

          (5,937)

          5

          $

          (12,880)

          5

          $

          -

          -

          $

          (18,817)

          10

          Middle Market Portfolio

          (22,503)

          6

          -

          -

          (30,594)

          4

          (53,097)

          10

          Private Loan Portfolio

          (29,075)

          2

          -

          -

          (14,914)

          2

          (43,989)

          4

          Total Net Realized Gain/(Loss)

          $

          (57,514)

          13

          $

          (12,880)

          5

          $

          (45,509)

          6

          $

          (115,903)

          24

          The following table provides a summary of the resultprimary components of (i) the net realized gain of $13.7 million resulting from the net effect of gains on the exits of six LMM investments, partially offset by losses on the exits of four LMM investments and other activity in the LMM portfolio, (ii) the realized gains of $6.1 million due to activity in our Other Portfolio and (iii) the realized gains of $2.5 million in our Private Loan portfolio, with the effect of these net realized gains partially offset by thetotal net realized loss on investments of $20.9$15.1 million in our Middle Market portfolio, which is primarilyfor the resultyear ended December 31, 2019:

          Year Ended December 31, 2019

          Full Exits

          Partial Exits

          Restructures

          Total

          Net Gain/Loss

          # of Investments

          Net Gain/Loss

          # of Investments

          Net Gain/Loss

          # of Investments

          Net Gain/Loss

          # of Investments

          (dollars in thousands)

          LMM Portfolio

          $

          13,788

          4

          $

          -

          -

          $

          -

          -

          $

          13,788

          4

          Middle Market Portfolio

          (12,216)

          2

          (7,012)

          1

          (9,880)

          2

          (29,107)

          5

          Private Loan Portfolio

          616

          4

          -

          -

          -

          -

          616

          4

          Total Net Realized Gain/(Loss)

          $

          2,189

          10

          $

          (7,012)

          1

          $

          (9,880)

          2

          $

          (14,703)

          13

          66


          Net Unrealized Appreciation (Depreciation)

          The following table provides a summary of the total net unrealized appreciationdepreciation of $19.3$5.6 million for the year ended December 31, 2018:2020:

          Year Ended December 31, 2020

          Middle

          Private

              

          LMM(a)

              

          Market (b)

              

          Loan (c)

              

          Other

          Total

           

          (dollars in millions)

          Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains / income) losses recognized during the current period

          $

          11.0

          $

          50.0

          $

          48.4

          $

          0.0

          $

          109.4

          Net unrealized depreciation relating to portfolio investments

           

          (34.7)

           

          (43.1)

           

          (34.6)

           

          (3.0)

          (d)

           

          (115.5)

          Total net unrealized depreciation relating to portfolio investments

          $

          (23.7)

          $

          6.9

          $

          13.7

          $

          (3.0)

          $

          (6.1)

          Unrealized appreciation relating to SBIC debentures (e)

           

          0.5

          Total net unrealized depreciation

          $

          (5.6)

           
           Twelve Months Ended December 31, 2018 
           
           LMM(a) Middle
          Market
           Private
          Loan
           Other Total 
           
           (dollars in millions)
           

          Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains / income) losses recognized during the current period

           $(22.2)$19.6 $(4.4)$(2.6)$(9.6)

          Net unrealized appreciation (depreciation) relating to portfolio investments

            54.5  (31.3) (19.3) 23.7(b) 27.6 

          Total net unrealized appreciation (depreciation) relating to portfolio investments

           $32.3 $(11.7)$(23.7)$21.1 $18.0 

          Unrealized appreciation relating to SBIC debentures(c)

                        1.3 

          Total net unrealized appreciation

                       $19.3 

          (a)
          LMM includes unrealized appreciation on 39 LMM portfolio investments and unrealized depreciation on 19 LMM portfolio investments.

          (b)
          Other includes $24.0 million of unrealized appreciation relating to the External Investment Manager and $0.3
          (a)Includes unrealized appreciation on 31 LMM portfolio investments and unrealized depreciation on 34 LMM portfolio investments.
          (b)Includes unrealized appreciation on 16 Middle Market portfolio investments and unrealized depreciation on 33 Middle Market portfolio investments.
          (c)Includes unrealized appreciation on 20 Private Loan portfolio investments and unrealized depreciation on 41 Private Loan portfolio investments.
          (d)Includes $16.5 million of net unrealized depreciation relating to the Other Portfolio, partially offset primarily by $12.7 million of unrealized appreciation relating to the External Investment Manager.
          (e)Relates to unrealized depreciation on the SBIC debentures previously issued by MSC II, which were accounted for on a fair value basis.

          The following table provides a summary of the total net unrealized depreciation relating to the Other Portfolio.

          (c)
          Primarily relates to unrealized appreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis and includes $1.4of $5.8 million of accounting reversals of previously recognized unrealized depreciation recorded since the date of acquisition of MSC II on the debentures repaid due to fair value adjustments since such date.

          Table of Contents

                 The income tax provision for the year ended December 31, 20182019:

          Year Ended December 31, 2019

          Middle

          Private

              

          LMM(a)

              

          Market (b)

              

          Loan (c)

              

          Other

          Total

           

          (dollars in millions)

          Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net
          realized (gains / income) losses recognized during the current period

          $

          (14.0)

          $

          23.6

          $

          (2.3)

          $

          0.1

          $

          7.4

          Net unrealized appreciation (depreciation) relating to portfolio investments

           

          14.5

           

          (42.0)

           

          4.3

           

          5.6

          (d)

           

          (17.6)

          Total net unrealized appreciation (depreciation) relating to portfolio investments

          $

          0.5

          $

          (18.4)

          $

          2.0

          $

          5.7

          $

          (10.2)

          Unrealized appreciation relating to SBIC debentures(e)

           

          4.4

          Total net unrealized depreciation

          $

          (5.8)

          67



          (a)

          Includes unrealized appreciation on 33 LMM portfolio investments and unrealized depreciation on 27 LMM portfolio investments.

          (b)

          Includes unrealized appreciation on 22 Middle Market portfolio investments and unrealized depreciation on 37 Middle Market portfolio investments.

          (c)

          Includes unrealized appreciation on 42 Private Loan portfolio investments and unrealized depreciation on 21 Private Loan portfolio investments.

          (d)

          Includes (i) $8.8 million of unrealized appreciation relating to the External Investment Manager and (ii) $0.9 million of unrealized appreciation relating to the investment assets in the Main Street Capital Corporation Deferred Compensation Plan (see “Related Party Transactions” below), partially offset by $4.0 million of net unrealized depreciation relating to the Other Portfolio.

          (e)

          Relates to $5.7 million of unrealized appreciation on the SBIC debentures previously issued by MSC II which are accounted for on a fair value basis and is primarily related to accounting reversals of previously recognized unrealized depreciation recorded since the date of the MSC II acquisition on the debentures repaid during the year ended December 31, 2019, partially offset by $1.2 million of unrealized depreciation on the SBIC debentures previously issued by MSC II, which are also accounted for on a fair value basis.

          Income Tax Benefit (Provision)

          The income tax benefit for the year ended December 31, 2020 of $13.5 million principally consisted of a deferred tax provisionbenefit of $5.8$14.1 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary book-tax differences, and other current tax expense of $0.4 million.

            Comparison of the years ended December 31, 2017 and 2016

           
           Twelve Months
          Ended
          December 31,
           Net Change 
           
           2017 2016 Amount % 
           
           (dollars in thousands)
           

          Total investment income

           $205,741 $178,339 $27,402  15% 

          Total expenses

            (70,370) (62,537) (7,833) 13% 

          Net investment income

            135,371  115,802  19,569  17% 

          Net realized gain from investments

            16,182  29,389  (13,207)   

          Net realized loss from SBIC debentures

            (5,217)   (5,217)   

          Net unrealized appreciation (depreciation) from:

                       

          Portfolio investments

            42,545  (8,305) 50,850    

          SBIC debentures and marketable securities and idle funds

            6,212  786  5,426    

          Total net unrealized appreciation (depreciation)

            48,757  (7,519) 56,276    

          Income tax benefit (provision)

            (24,471) 1,227  (25,698)   

          Net increase in net assets resulting from operations

           $170,622 $138,899 $31,723  23% 


           
           Twelve Months
          Ended
          December 31,
           Net Change 
           
           2017 2016 Amount % 
           
           (dollars in thousands, except per share
          amounts)

           

          Net investment income

           $135,371 $115,802 $19,569  17% 

          Share-based compensation expense

            10,027  8,304  1,723  21% 

          Distributable net investment income(a)

           $145,398 $124,106 $21,292  17% 

          Net investment income per share — Basic and diluted

           $2.39 $2.23 $0.16  7% 

          Distributable net investment income per share — Basic and diluted(a)

           $2.56 $2.39 $0.17  7% 

          (a)
          Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

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            Investment Income

                 For the year ended December 31, 2017, total investment income was $205.7 million, a 15% increase over the $178.3 million of total investment income for the corresponding period of 2016. This comparable period increase was principally attributable to (i) a $23.2 million increase in interest income primarily related to higher average levels of portfolio debt investments and increased activities involving existing Investment Portfolio debt investments, (ii) a $2.5 million increase in dividend income from Investment Portfolio equity investments and (iii) a $1.8 million increase in fee income. The $27.4 million increase in total investment income in the year ended December 31, 2017 includes (i) an increase of $6.7 million related to higher accelerated prepayment, repricing and other activity for certain portfolio debt investments when compared to the same period in 2016, (ii) an increase of $2.7 million related to interest income activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring during the period when compared to the same period in 2016 and (iii) includes $1.7 million related to dividend income activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring which is consistent with the amount from such dividend income activity in the same period in 2016.

            Expenses

                 For the year ended December 31, 2017, total expenses increased to $70.4 million from $62.5 million for the corresponding period of 2016. This comparable period increase in operating expenses was principally attributable to (i) a $2.8 million increase in interest expense, primarily due to (a) a $1.4 million increase on the Credit Facility due to the higher average interest rate during 2017, (b) a $0.9 million increase due to the issuance of our 4.50% Notes due 2022 in November 2017 and (c) a $0.5 million increase due to the higher average balance of SBIC debentures outstanding, (ii) a $2.4 million increase in general and administrative expenses, including approximately $0.6 million related to non-recurring professional fees and other expenses incurred on certain potential new portfolio investment opportunities which were terminated during the due diligence and legal documentation processes, (iii) a $2.2 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals and (iv) a $1.7 million increase in share-based compensation expense, with these increases partially offset by a $1.3 million increase in the expenses allocated to the External Investment Manager, in each case when compared to the same period in the prior year. For the years ended December 31, 2017 and 2016, the ratio of our total operating expenses, excluding interest expense and the non-recurring professional fees and other expenses discussed above as a percentage of our quarterly average total assets was 1.5%. Including the effect of the non-recurring expenses, the ratio for the year ended December 31, 2017 was 1.6%.

            Net Investment Income

                 Net investment income for the year ended December 31, 2017 was $135.4 million, or a 17% increase, compared to net investment income of $115.8 million for the corresponding period of 2016. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses both as discussed above.

            Distributable Net Investment Income

                 For the year ended December 31, 2017, distributable net investment income increased 17% to $145.4 million, or $2.56 per share, compared with $124.1 million, or $2.39 per share in 2016. The increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset by higher operating expenses both as discussed above. Distributable net investment income on a per share basis for the year ended December 31, 2017 reflects an (i) increase of approximately $0.16 per share from the comparable period in 2016 attributable to the net increase in the comparable levels of accelerated prepayment, repricing and other, unusual activity for certain Investment Portfolio debt investments and (ii) a greater number of average shares outstanding compared to the corresponding period in 2016 primarily due to shares issued through the ATM Program (as defined in "— Liquidity and Capital Resources — Capital Resources" below), shares issued pursuant to our equity incentive plans and shares issued pursuant to our dividend reinvestment plan.


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            Net Increase in Net Assets Resulting from Operations

                 The net increase in net assets resulting from operations during the year ended December 31, 2017 was $170.6 million, or $3.01 per share, compared with $138.9 million, or $2.67 per share, during the year ended December 31, 2016. This $31.7 million increase from the prior year was primarily the result of (i) a $56.3 million improvement in net unrealized appreciation (depreciation) from portfolio investments and SBIC debentures, including the impact of accounting reversals relating to realized gains/income (losses), from net unrealized depreciation of $7.5 million for the year ended December 31, 2016 to net unrealized appreciation of $48.8 million for the year ended December 31, 2017, which includes the impact of approximately $15.0 million of unrealized appreciation in the LMM equity portfolio related to the enactment of the Tax Cuts and Jobs Act (see further discussion above in "— Critical Accounting Policies — Income Taxes") and (ii) a $19.6 million increase in net investment income as discussed above, with these increases partially offset by (i) a $25.7 million change in the income tax benefit (provision) from an income tax benefit of $1.2 million for the year ended December 31, 2016 to an incomecurrent tax provision of $24.5 million for the year ended December 31, 2017, (ii) a $13.2 million decrease in the net realized gain from investments to a total net realized gain from investments of $16.2 million for the year ended December 31, 2017 and (iii) a $5.2 million realized loss on the repayment of SBIC debentures outstanding at MSC II which had previously been accounted for on the fair value method of accounting. The net realized gain from investments of $16.2 million for the year ended December 31, 2017 was primarily the result of (i) the net realized gain of $11.8 million resulting from gains on the exits of five LMM investments and losses on the exits of four LMM investments, (ii) realized gains of $9.3 million due to activity in our Other Portfolio, (iii) net realized gains of $3.0 million in our Private Loan portfolio resulting from gains on the exits of two Private Loan investments and a loss on the restructure of a Private Loan investment, (iv) realized gains of $2.1$0.5 million related to other activity in the LMM portfolioa $1.6 million provision for excise tax on our estimated undistributed taxable income and (v) the net realized loss of $9.8a $1.1 million in our Middle Market portfolio, which is primarily the result of (a) realized losses of $7.9 million on the exits of two Middle Market investmentsbenefit for current U.S. federal and (b) the realized loss of $3.5 million on the restructure of a Middle Market investment, with these changes partially offset by $1.5 million of net realized gains on other activity in our Middle Market portfolio. The realized loss of $5.2 million on the repayment of SBIC debentures is related to the previously recognized bargain purchase gain resulting from recording the MSC II debentures at fair value on the date of the acquisition of the majority of the equity interests of MSC II in 2010. The effect of the realized loss is offset by the reversal of all previously recognized unrealized depreciation on these SBIC debentures due to fair value adjustments since the date of the acquisition.


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                 The following table provides a summary of the total net unrealized appreciation of $48.8 million for the year ended December 31, 2017:

           
           Twelve Months Ended December 31, 2017 
           
           LMM(a) Middle
          Market
           Private
          Loan
           Other(b) Total 
           
           (dollars in millions)
           

          Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains)/(income) losses recognized during the current period

           $(11.1)$5.6 $(3.1)$(8.1)$(16.7)

          Net unrealized appreciation (depreciation) relating to portfolio investments

            50.6  (9.6) (3.1) 21.4  59.3 

          Total net unrealized appreciation (depreciation) relating to portfolio investments

           $39.5 $(4.0)$(6.2)$13.3 $42.6 

          Unrealized appreciation relating to SBIC debentures(c)

                        6.2 

          Total net unrealized appreciation

                       $48.8 

          (a)
          LMM includes unrealized appreciation on 39 LMM portfolio investments and unrealized depreciation on 25 LMM portfolio investments.

          (b)
          Other includes $11.2 million of unrealized appreciation relating to the External Investment Manager and $10.2 million of net unrealized appreciation relating to the Other Portfolio.

          (c)
          Relates to unrealized appreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis and includes $6.0 million of accounting reversals resulting from the reversal of previously recognized unrealized depreciation recorded since the date of acquisition of MSC II on the debentures repaid due to fair value adjustments since such date and $0.2 million of current period unrealized appreciation on the remaining SBIC debentures.

          The income tax provision for the year ended December 31, 20172019 of $24.5$1.2 million principally consisted of a current tax expense of $3.5 million related to (i) a $2.4 million provision for current U.S. federal and state income taxes and (ii) a $1.1 million provision for excise tax on our estimated undistributed taxable income, partially offset by a deferred tax provisionbenefit of $19.3$2.3 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary book-tax differences, and other current tax expensedifferences.

          Net Increase (Decrease) in Net Assets Resulting from Operations

          The net increase in net assets resulting from operations for the year ended December 31, 2020 was $29.4 million, or $0.45 per share, compared with $129.6 million, or $2.06 per share, during the year ended December 31, 2019. The tables above provide a summary of $5.2 million relatedthe reasons for the change in Net Increase in Net Assets Resulting from Operations for the year ended December 31, 2020 as compared to (i) a $1.9 million accrual for excise tax on our estimated undistributed taxable income and (ii) current tax expense of $3.3 million related to accruals for U.S. federal and state income taxes.the year ended December 31, 2019.

            Liquidity and Capital Resources

            This “Liquidity and Capital Resources” section should be read in conjunction with the “COVID-19 Update” section above.

            Cash Flows

          For the year ended December 31, 2018,2020, we experienced a net decrease in cash and cash equivalents in the amount of $23.3 million, which is the net result of $54.1 million of cash used in our operating activities and $30.8 million of cash provided by our financing activities.

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          The $54.1 million of cash used in our operating activities resulted primarily from cash uses totaling $669.0 million for the funding of new and follow-on portfolio company investments, including the transaction pursuant to which the External Investment Manager became the sole investment adviser to MSC Income, and settlement of accruals for portfolio investments existing as of December 31, 2019, partially offset by (i) cash proceeds totaling $478.0 million from the sales and repayments of debt investments and sales of and return on capital of equity investments, (ii) cash flows we generated from the operating profits earned totaling $131.5 million, which is our distributable net investment income, excluding the non-cash effects of the accretion of unearned income, payment-in-kind interest income, cumulative dividends and the amortization expense for deferred financing costs, and (iii) cash proceeds of $5.4 million related to changes in other assets and liabilities.

          The $30.8 million of cash provided by our financing activities principally consisted of (i) $125.0 million in proceeds from the follow-on issuance of the 5.20% Notes in July 2020, (ii) $84.4 million in net cash proceeds from our ATM Program (described below) and direct stock purchase plan, (iii) $40.0 million in cash proceeds from the issuance of SBIC debentures and (iv) $0.7 million for debt issuance premiums, net of payments of deferred debt issuance costs, SBIC debenture fees and other costs, partially offset by (i) $144.5 million in cash dividends paid to stockholders, (ii) $31.0 million in net repayments from the Credit Facility, (iii) $42.0 million in repayment of SBIC debentures, and (iv) $1.9 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock.

          For the year ended December 31, 2019, we experienced a net increase in cash and cash equivalents in the amount of approximately $2.7$1.1 million, which is the net result of approximately $109.1$33.8 million of cash used in our operating activities and approximately $111.7$34.9 million of cash provided by our financing activities.

                 During the year ended December 31, 2018, $109.1The $33.8 million of cash was used in our operating activities which resulted primarily from cash uses totaling $664.1 million for the funding of new portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2018, partially offset by (i) cash flows we generated from the operating profits earned through our operating activities totaling $149.8$151.6 million, which is our $165.8 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income, of $14.7 million, payment-in-kind interest income, of $2.3 million, cumulative dividends of $2.3 million and the amortization expense for deferred financing costs, of $3.3 million, and (ii) cash uses totaling $963.4 million, which principally consisted of $962.5 million for the funding of new portfolio company investments and settlement of accruals


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          for portfolio investments existing as of December 31, 2017 and $0.9 million related to decreases in payables and accruals and (iii) cash proceeds totaling $704.6$477.9 million from $703.2 million in cash proceeds from the sales and repayments of debt investments and sales of and return on capital of equity investments and $1.4(iii) cash proceeds of $0.8 million related to decreaseschanges in other assets.assets and liabilities.

                 During the year ended December 31, 2018, $111.7The $34.9 million inof cash was provided byused in our financing activities which principally consisted of (i) $237.0$325.0 million in net cash proceeds from the Credit Facilityissuance of the 5.20% Notes and (ii) $78.4$89.3 million in net cash proceeds from the ATM Program (described below), and (iii) $54.0 million in cash proceeds from issuance of SBIC debentures, partially offset by (i) $156.0$175.0 million cash used in repayment of 4.50% Notes due 2019, (ii) $164.3 million in cash dividends paid to stockholders, (ii) $90.7 million in redemption of 6.125% Notes, (iii) $4.0$34.0 million in repayment of SBIC debentures, (iv) $4.1$3.9 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock, and (v) $2.9$1.2 million for payment of deferred debt issuance costs, SBIC debenture fees and other costs.

                 For the year ended December 31, 2017, we experienced a net increase in cashcosts and cash equivalents in the amount of approximately $27.0 million, which is the result of approximately $72.9 million of cash provided by our operating activities(vi) and approximately $45.9 million of cash used in financing activities.

                 During the year ended December 31, 2017, $72.9 million of cash was provided by our operating activities, which resulted primarily from (i) cash flows we generated from the operating profits earned through our operating activities totaling $123.1 million, which is our $145.4 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income of $17.0 million, payment-in-kind interest income of $4.9 million, cumulative dividends of $3.2 million and the amortization expense for deferred financing costs of $2.8 million, (ii) cash uses totaling $876.7 million for the funding of new portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2016, and (iii) cash proceeds totaling $826.5 million from (a) $819.4 million in cash proceeds from the sales and repayments of debt investments and sales of and return on capital of equity investments, (b) $4.5 million related to decreases in other assets and (c) $2.6 million related to increases in payables and accruals.

                 During the year ended December 31, 2017, $45.9 million in cash was used in financing activities, which principally consisted of (i) $150.9 million in net cash proceeds from the ATM Program (described below), (ii) $185.0 million in cash proceeds from the issuance of 4.50% Notes due 2022 in November 2017 and (iii) $81.0 million in cash proceeds from issuance of SBIC debentures, partially offset by (i) $279.0 million$1.0 in net repayments on the Credit Facility and (ii) $148.4 million in cash dividends paid to stockholders, (iii) $25.2 million in repayment of SBIC debentures, (iii) $4.4 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock and (iv) $5.9 million for payment of deferred debt issuance costs, SBIC debenture fees and other costs.Facility.

            Capital Resources

          As of December 31, 2018,2020, we had $54.2$31.9 million in cash and cash equivalents and $404.0$511.0 million of unused capacity under the Credit Facility, which we maintain to support our investment and operating activities. As of December 31, 2018,2020, our net asset value totaled $1,476.0$1,514.8 million, or $24.09$22.35 per share.

          The Credit Facility, which provides additional liquidity to support our investment and operational activities, was amended and restated during 2018 to provide for an increase inincludes total commitments of $780.0 million from $585.0 million to $705.0 million and to increase thea diversified group of lenders to eighteen, eliminate interest rate adjustments previously subject to our maintenance of an investment grade rating and extend the final maturity by two years to September 2023.19 lenders. The amended Credit Facility alsomatures in September 2023 and contains an upsized accordion feature, which allows us to increase the total commitments under the facility to up to $800.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

          Borrowings under the Credit Facility bear interest, subject to our election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable LIBOR rate (2.5%(0.2% as of the most recent reset date for the period ended December 31, 2018)2020) plus (i) 1.875% (or the applicable base


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          rate (Prime Rate of 5.5%3.25% as of December 31, 2018)2020) plus 0.875%) as long as we meet certain agreed upon excess collateral and maximum leverage

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          requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) otherwise. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining an asset coverage ratio (tangible net worth to Credit Facility borrowings) of at least 1.5 to 1.0 and (iv) maintaining a minimum tangible net worth. The Credit Facility is provided on a revolving basis through its final maturity date in September 2023, and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval. As of December 31, 2018,2020, we had $301.0$269.0 million in borrowings outstanding under the Credit Facility, the interest rate on the Credit Facility was 4.2%2.0% and we were in compliance with all financial covenants of the Credit Facility.

          Through the Funds, we have the ability to issue SBIC debentures guaranteed by the SBA at favorable interest rates and favorable terms and conditions. Under existing SBASBIC regulations, SBA approvedSBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million. Through the Funds,Under existing SBA-approved commitments, we have an effective maximum amount of $346.0 million following the prepayment of $4.0had $309.8 million of existingoutstanding SBIC debentures guaranteed by the SBA as discussed below.of December 31, 2020 through our wholly owned SBICs, which bear a weighted-average annual fixed interest rate of approximately 3.4%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures occurs in 2021, and the weighted-average remaining duration is approximately 5.4 years as of December 31, 2020. During the year ended December 31, 2018, we2020, Main Street issued $54.0$40.0 million of SBIC debentures and opportunistically prepaid $4.0$42.0 million of our existing SBIC debentures that were scheduled to mature over the next year as part of an effort to manage the maturity dates of ourthe oldest SBIC debentures. Debentures guaranteed by the SBA have fixed interest rates that equal prevailing 10-year Treasury Note rates plus a market spread and have a maturity of ten years with interest payable semiannually. The principal amount of the debentures is not required to be paid before maturity, but may be pre-paid at any time with no prepayment penalty. We expect to issue new SBIC debentures under the SBIC program in the future in an amount up to the regulatory maximum amount for affiliated SBIC funds. As of December 31, 2018, through our three wholly owned SBICs, we had $345.8 million of outstanding SBIC debentures guaranteed by the SBA, which bear a weighted-average annual fixed interest rate of approximately 3.7%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures occurs in 2019, and the weighted-average remaining duration is approximately 5.6 years as of December 31, 2018.

          In April 2013,November 2017, we issued $92.0$185.0 million including the underwriters' full exercise of their over-allotment option, in aggregate principal amount of the 6.125%4.50% Notes (the "6.125% Notes"). The 6.125% Notes bore interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. The total net proceeds to us from the 6.125% Notes, after underwriting discounts and estimated offering expenses payable, were approximately $89.0 million. On April 2, 2018, we redeemed the entire principal amount of the issued and outstanding 6.125% Notes effective April 1, 2018 (the "Redemption Date"). The 6.125% Notes were redeemed at par value, plus the accrued and unpaid interest thereon from January 1, 2018, through, but excluding, the Redemption Date. As part of the redemption, we recognized a realized loss on extinguishment of debt of $1.5 million in the second quarter of 2018 related to the write-off of the related unamortized deferred financing costs.

                 In November 2014, we issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes due 2019") at an issue price of 99.53%99.16%. The 4.50% Notes due 2019 are scheduled to mature on December 1, 2022 and are unsecured obligations and rank pari passu with our current and future unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2019;Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2019 mature on December 1, 2019, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. The


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          4.50% Notes due 2019 bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. We may from time to time repurchase the 4.50% Notes due 2019 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2018,2020, the outstanding balance of the 4.50% Notes due 2019 was $175.0$185.0 million.

          The indenture governing the 4.50% Notes due 2019 (the "4.50%“4.50% Notes due 2019 Indenture"Indenture”) contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 4.50% Notes due 2019 and the Trustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act").Act. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes due 2019 Indenture.

          In November 2017,April 2019, we issued $185.0$250.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50%the 5.20% Notes due 2022") at an issue price of 99.16%99.125%. Subsequently, in December 2019, we issued an additional $75.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 105.0%. Also, in July 2020, we issued an additional $125.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 102.674% of par, resulting in net proceeds to us of approximately $127.3 million after underwriting discounts and estimated offering expenses payable by us. The 4.50%5.20% Notes due 2022issued in December 2019 and July 2020 have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019, all of which are scheduled to mature on May 1, 2024. The aggregate net proceeds from the

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          5.20% Notes issuances were used to repay a portion of the borrowings outstanding under the Credit Facility. The 5.20% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022;5.20% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50%5.20% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. The 4.50%5.20% Notes due 2022 bear interest at a rate of 4.50%5.20% per year payable semiannually on JuneMay 1 and DecemberNovember 1 of each year. We may from time to time repurchase 4.50%the 5.20% Notes due 2022 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2018,2020, the outstanding balance of the 4.50%5.20% Notes due 2022 was $185.0$450.0 million.

          The indenture governing the 4.50%5.20% Notes due 2022 (the "4.50%“5.20% Notes due 2022 Indenture"Indenture”) contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 4.50%5.20% Notes due 2022 and the Trustee if we cease to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 4.50%5.20% Notes due 2022 Indenture.

          We maintain a program with certain selling agents through which we can sell shares of our common stock by means of at-the-market offerings from time to time (the "ATM Program"“ATM Program”).

          During the year ended December 31, 2016,2020, we sold 3,324,6462,645,778 shares of our common stock at a weighted-average price of $34.17$32.10 per share and raised $113.6$84.9 million of gross proceeds under the ATM Program. Net proceeds were $112.0 million after commissions to the selling agents on shares sold and offering costs.

                 During the year ended December 31, 2017, we sold 3,944,972 shares of our common stock at a weighted-average price of $38.72 per share and raised $152.8 million of gross proceeds under the ATM Program. Net proceeds were $150.9 million after commissions to the selling agents on shares sold and offering costs.

                 During the year ended December 31, 2018, we sold 2,060,019 shares of our common stock at a weighted-average price of $38.48 per share and raised $79.3 million of gross proceeds under the ATM Program. Net proceeds were $78.0$83.8 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2018, 2,994,4692020, sales transactions representing 87,179 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate net asset value per share. As of December 31, 2020, 5,713,372 shares remained available for sale under the ATM Program.

          During the year ended December 31, 2019, we sold 2,247,187 shares of our common stock at a weighted-average price of $40.05 per share and raised $90.0 million of gross proceeds under the ATM Program. Net proceeds were $88.8 million after commissions to the selling agents on shares sold and offering costs.

          We anticipate that we will continue to fund our investment activities through existing cash and cash equivalents, cash flows generated through our ongoing operating activities, utilization of available borrowings under our Credit Facility, and a combination of future issuances of debt and equity capital. Our primary uses


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          of funds will be investments in portfolio companies, operating expenses and cash distributions to holders of our common stock.

          We periodically invest excess cash balances into marketable securities and idle funds investments. The primary investment objective of marketable securities and idle funds investments is to generate incremental cash returns on excess cash balances prior to utilizing those funds for investment in our LMM, Middle Market and Private Loan portfolio investments. Marketable securities and idle funds investments generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments.

          If our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price, unless our stockholders approve such a sale and our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 20182020 annual meeting of stockholders because our common stock price per share had been tradinghas generally traded significantly above the net asset value per share of our common stock since 2011. We would therefore need future approval from our stockholders to issue shares below the then current net asset value per share.

          71


          In order to satisfy the Code requirements applicable to a RIC, we intend to distribute to our stockholders, after consideration and application of our ability under the Code to carry forward certain excess undistributed taxable income from one tax year into the next tax year, substantially all of our taxable income. In addition, as a BDC, we generally are required to meet a coverage ratio of total assets to total senior securities, which include borrowings and any preferred stock we may issue in the future, of at least 200% (or 150% if certain requirements are met). This requirement limits the amount that we may borrow. In January 2008, we received an exemptive order from the SEC to exclude SBA-guaranteed debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to us, which, in turn, enables us to fund more investments with debt capital.

          Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC program and equity offerings, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

            Recently Issued or Adopted Accounting Standards

                 In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09,Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605,Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Under the guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the FASB issued ASU 2016-08,Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12,Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the FASB issued


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          ASU No. 2016-20,Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and clarified the scope and application of the new revenue standard and related cost guidance. The guidance is effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Substantially all of our income is not within the scope of ASU 2014-09. For those income items that are within the scope (primarily fee income), we have similar performance obligations as compared with deliverables and separate units of account previously identified. As a result, our timing of income recognition remains the same and the adoption of the standard was not material.

                 In February 2016, the FASB issued ASU 2016-02,Leases, which requires lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The guidance is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early application is permitted. While we continue to assess the effect of adoption, we currently believe the most significant change relates to the recognition of a new right-of-use asset and lease liability on our consolidated balance sheet for our office space operating lease. We currently have one operating lease for office space and do not expect a significant change in our leasing activity between now and adoption. See further discussion of our operating lease obligation in "Note K — Commitments and Contingences" in the notes to the consolidated financial statements.

                 In August 2016, the FASB issued ASU 2016-15,Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2017, and interim periods therein. We have adopted ASU 2016-15. The impact of the adoption of this accounting standard on our consolidated financial statements was not material.

                 In August 2018, the FASB issued ASU 2018-13,Fair Value Measurement (Topic 820), which is intended to improve fair value and defined benefit disclosure requirements by removing disclosures that are not cost-beneficial, clarifying disclosures' specific requirements, and adding relevant disclosure requirements. The amendments take effect for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. We have elected to early adopt ASU 2018-13 in the current annual period. No significant changes were made to our fair value disclosures in the notes to the consolidated financial statements in order to comply with ASU 2018-13.

                 In August 2018, the SEC adopted rules (the "SEC Release") amending certain disclosure requirements intended to eliminate redundant, duplicative, overlapping, outdated, or superseded, in light of other SEC disclosure requirements, US GAAP requirements, or changes in the information environment. In part, the SEC Release requires an investment company to present distributable earnings in total on the consolidated balance sheet and consolidated statement of changes in net assets, rather than showing the three components of distributable earnings as previously shown. We adopted this part of the SEC Release in the current annual period and the changes in presentation have been retrospectively applied to the consolidated balance sheet as of December 31, 2017 and to the consolidated statements of changes in net assets for the years ended December 31, 2017 and 2016. The impact of the adoption of these rules on our consolidated financial statements was not material. Additionally, the SEC Release requires disclosure of changes in net assets within a registrant's Form 10-Q filing on a quarter-to-date and year-to-date basis for both the current year and prior year comparative periods. We expect to adopt the new requirement to present changes in shareholders' equity in interim financial statements within Form 10-Q filings starting with the quarter ending March 31, 2019. The compliance date for the SEC Release was for all filings, as applicable, on or after November 5, 2018. The adoption of these additional rules will not have a material impact on the consolidated financial statements.


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          From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by us as of the specified effective date. We believe that the impact of recently issued standards and any that are not yet effective will not have a material impact on our consolidated financial statements upon adoption. For a description of recently issued or adopted accounting standards, see Note B.13 to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

            Inflation

          Inflation has not had a significant effect on our results of operations in any of the reporting periods presented herein. However, our portfolio companies have experienced, and may in the future experience, the impacts of inflation on their operating results, including periodic escalations in their costs for labor, raw materials and third-party services and required energy consumption.

            Off-Balance Sheet Arrangements

          We may be a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of our portfolio companies. These instruments include commitments to extend credit and fund equity capital and involve, to varying degrees, elements of liquidity and credit risk in excess of the amount recognized in the balance sheet. At December 31, 2018,2020, we had a total of $136.9$137.1 million in outstanding commitments comprised of (i) 33forty-three investments with commitments to fund revolving loans that had not been fully drawn or term loans with additional commitments not yet funded and (ii) 11nine investments with equity capital commitments that had not been fully called.

            Contractual Obligations

          As of December 31, 2018,2020, the future fixed commitments for cash payments in connection with our SBIC debentures, the 4.50% Notes, due 2019, the 4.50%5.20% Notes due 2022 and rent obligations under our office lease for each of the next five years and thereafter are as follows:follows (dollars in thousands):

              

          2021

              

          2022

              

          2023

              

          2024

              

          2025

              

          Thereafter

              

          Total

          SBIC debentures

          $

          40,000

          $

          -

          $

          16,000

          $

          63,800

          $

          -

          $

          190,000

          $

          309,800

          Interest due on SBIC debentures

          9,766

          8,784

          8,530

          7,082

          5,859

          14,869

          54,890

          4.50% Notes due 2022

          -

          185,000

          -

          -

          -

          -

          185,000

          Interest due on 4.50% Notes due 2022

          8,325

          8,325

          -

          -

          -

          -

          16,650

          5.20% Notes due 2024

          -

          -

          -

          450,000

          -

          -

          450,000

          Interest due on 5.20% Notes due 2024

          23,400

          23,400

          23,400

          11,700

          -

          -

          81,900

          Operating Lease Obligation (1)

          776

          790

          804

          818

          832

          1,779

          5,799

          Total

          $

          82,267

          $

          226,299

          $

          48,734

          $

          533,400

          $

          6,691

          $

          206,648

          $

          1,104,039

          72


           
           2019 2020 2021 2022 2023 Thereafter Total 

          SBIC debentures

           $16,000 $55,000 $40,000 $5,000 $16,000 $213,800 $345,800 

          Interest due on SBIC debentures

            12,738  11,819  9,260  8,248  7,868  23,317  73,250 

          4.50% Notes due 2019

            175,000            175,000 

          Interest due on 4.50% Notes due 2019

            7,875            7,875 

          4.50% Notes due 2022

                  185,000      185,000 

          Interest due on 4.50% Notes due 2022

            8,325  8,325  8,325  8,325      33,300 

          Operating Lease Obligation(1)

            748  762  776  790  804  3,429  7,309 

          Total

           $220,686 $75,906 $58,361 $207,363 $24,672 $240,546 $827,534 

          (1)Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to ASC 842, as may be modified or supplemented.
          (1)
          Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to FASB ASC 840, as may be modified or supplemented.

          As of December 31, 2018,2020, we had $301.0$269.0 million in borrowings outstanding under our Credit Facility, and the Credit Facility is currently scheduled to mature in September 2023. The Credit Facility contains two, one-year extension options which could extend the maturity to September 2025, subject to lender approval. See further discussion of the Credit Facility terms above in "— “—Liquidity and Capital Resources — Resources—Capital Resources."

            Related Party Transactions

          As discussed further above, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of our Investment Portfolio. At December 31, 2018,2020, we had a receivable of approximately $2.9$3.5 million due from the External Investment Manager, which included approximately $1.8$2.4 million related primarily related to operating expenses incurred by us as required to support the


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          External Investment Manager'sManager’s business and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion above in "— Critical Accounting Policies — Income Taxes")Note D to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K) and approximately $1.2$1.1 million of dividends declared but not paid by the External Investment Manager. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for the External Investment Manager’s relationship with MSC Income and its other clients. See Note A.1 and Note D to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for more information regarding the External Investment Manager.

          In November 2015, our Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015“2015 Deferred Compensation Plan"Plan”). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013“2013 Deferred Compensation Plan"Plan”). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors'directors’ fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2018, $6.12020, $11.9 million of compensation and directors' feesdividend reinvestments net of unrealized gains and losses and distributions had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan).  Of this amount, $3.3$5.2 million washad been deferred into phantom Main Street stock units, representing 97,344 shares of our common stock. Including phantom stock units issued through dividend reinvestment and net of any shares distributed, the phantom stock units outstanding as of December 31, 2018 represented 119,639160,352 shares of our common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the consolidated statements of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but the related phantom stock units are included in operating expenses and weighted-average shares outstanding with the related dollar amount of the deferral included in ourtotal expenses in Main Street’s consolidated statements of operations as earned. The dividend amounts related to additional phantom stock units are included in the statements of changes in net assets as an increase to dividends to stockholders offset by a corresponding increase to additional paid-in capital.

            In December 2020, the External Investment Manager entered into an Investment Management Agreement with the Private Loan Fund, pursuant to which the External Investment Manager provides investment advisory and management services to the Private Loan Fund in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund is a private investment fund exempt from registration under the 1940 Act that invests in debt investments in middle market companies generally with EBITDA between $7.5 million and $50 million and generally owned by a private equity sponsor, which we generally refer to as “Private Loan” investments. In connection with the Private Loan Fund’s initial closing in December 2020, we committed to contribute up to $10.0 million as a limited partner and will be entitled to distributions on such interest. In addition, certain of our officers and employees (and certain of their immediate family members) made capital commitments to the Private Loan Fund as limited partners and therefore have direct pecuniary interest in the Private Loan Fund.

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          From time to time, we may make investments in clients of the External Investment Manager in the form of debt capital on terms approved by our Board of Directors. In January 2021, we entered into a Term Loan Agreement with MSC Income (the “Term Loan Agreement”). The Term Loan Agreement was unanimously approved by our Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act and the board of directors of MSC Income, including each director who is not an “interested person” of MSC Income or the External Investment Manager. The Term Loan Agreement provides for a term loan of $40.0 million to MSC Income, bearing interest at a fixed rate of 5.00% per annum, and matures in January 2026. Borrowings under the Term Loan Agreement are expressly subordinated and junior in right of payment to all secured indebtedness of MSC Income and are subject to a two-year no-call period that expires on January 27, 2023. Additionally, we have provided the Private Loan Fund with a revolving line of credit pursuant to an Unsecured Revolving Promissory Note, dated February 5, 2021 (the “Private Loan Fund Loan”), in an aggregate amount equal to the amount of limited partner capital commitments to the Private Loan Fund up to $50.0 million. Borrowings under the Private Loan Fund Loan bear interest at a fixed rate of 5.00% per annum and will mature on the earlier of June 30, 2022 and the date of the Private Loan Fund’s final closing.

          Recent Developments

          In January 2019,2021, we led a new portfolio investment to facilitate the minority recapitalization of Centre Technologies, Inc. ("Centre"), a premier provider of IT hardware, software and service solutions. We, along with our co-investors, partnered with Centre's founder and Chief Executive Officer and management team to facilitate the transaction, with us funding $18.1issued $300.0 million in a combinationaggregate principal amount of first-lien, senior secured term debt3.00% unsecured notes due July 14, 2026 (the “3.00% Notes”) at an issue price of 99.004%. The total net proceeds from the 3.00% Notes, resulting from the issue price and a direct equity investment. Headquartered in Houston, Texas,after underwriting discounts and founded in 2006, Centre has established itself as a mission critical IT solutions providerestimated offering a full suite of solutions including managed and hosted services, value-added sourcing and integration, and project services.expenses payable, were approximately $294.8 million.

                 In January 2019, we led a new portfolio investment to facilitate the management buyout of CompareNetworks Inc. ("CompareNetworks"), a leading provider of media, marketing and technology solutions that drive revenue for life science and healthcare product manufacturers. We, along with our co-investors, partnered with CompareNetworks' founders and management team to facilitate the transaction, with us funding $10.7 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in South San Francisco, California, and founded in 2000, CompareNetworks provides life scientists, researchers, lab-based professionals, pharmaceutical professionals and healthcare professionals with digital tools and information resources to research, identify and determine which products and technologies to use.

                 In January 2019, we fully exited our equity investment in Boss Industries, LLC ("Boss"). Boss markets, designs and manufacturers vehicle-mounted, and portable air compressor and generator systems utilized in municipal and utility services, energy product and industrial services. We realized a gain of approximately $4.0 million on the exit of our equity investment in Boss.

          During February 2019,2021, we declared regular monthly dividends of $0.200$0.205 per share for each month of April, May and June 2019.2021. These regular monthly dividends equal a total of $0.600$0.615 per share for the second quarter of 2019 and represent a 5.3% increase2021, unchanged from the monthly dividends paid in the second quarter of 2020. Including the monthly dividends declared for the second quarter of 2018.


          Table of Contents

          Including the dividends declared for the second quarter of 2019,2021, we will have paid $25.420$30.830 per share in cumulative dividends since our October 2007 initial public offering.

          Item 7A. Quantitative and Qualitative Disclosures about Market Risk

          We are subject to financial market risks, including changes in interest rates. Changesrates, and changes in interest rates may affect both our cost of fundinginterest expense on the debt outstanding under our Credit Facility and our interest income from portfolio investments. Our risk management systems and procedures are designed to identify and analyze our risk, to set appropriate policies and limits and to continually monitor these risks. Our investment income will be affected by changes in various interest rates, including LIBOR and prime rates, to the extent that any debt investments include floating interest rates. See “Risk Factors — Risks Relating to Our Investments —Changes relating to the LIBOR calculation process, the phase-out of LIBOR and the use of replacement rates for LIBOR may adversely affect the value of our portfolio securities.” and “Risk Factors — Risks Relating to Our Investments — Changes in interest rates may affect our cost of capital, net investment income and value of our investments.” for more information regarding risks associated with our debt investments and borrowings that utilize LIBOR as a reference rate.

          The majority of our debt investments are made with either fixed interest rates or floating-ratesfloating rates that are subject to contractual minimum interest rates for the term of the investment. As of December 31, 2018,2020, approximately 72%71% of our debt investment portfolio (at cost) bore interest at floating rates, 90%87% of which were subject to contractual minimum interest rates. Our interest expense will be affected by changes in the published LIBOR rate in connection with our Credit Facility; however, the interest rates on our outstanding SBIC debentures, 4.50%and the outstanding Notes, due 2019 and 4.50% Notes due 2022, which collectively comprise the majority of our outstanding debt, are fixed for the life of such debt. As of December 31, 2018,2020, we had not entered into any interest rate hedging arrangements. Due to our limited use of derivatives, we have claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act and, therefore, are not subject to registration or regulation as a pool operator under such Act. The following table shows the

          74


          approximate annualized increase or decrease in the components of net investment income due to hypothetical base rate changes in interest rates, assuming no changes in our investments and borrowings as of December 31, 2018.2020.

              

          Increase

              

          (Increase)

              

          Increase

              

          Increase

          (Decrease)

          Decrease

          (Decrease) in Net

          (Decrease) in Net

          in Interest

          in Interest

          Investment

          Investment

          Basis Point Change
           Increase
          (Decrease)
          in Interest
          Income
           (Increase)
          Decrease
          in Interest
          Expense
           Increase
          (Decrease) in Net
          Investment
          Income
           Increase
          (Decrease) in Net
          Investment
          Income per Share
           

              

          Income

              

          Expense

              

          Income

              

          Income per Share


           (dollars in thousands)
           

          (dollars in thousands, except per share amounts)

          (150)

          $

          (397)

          $

          416

          $

          19

          $

          (125)

           

          (397)

           

          416

           

          19

           

          (100)

           

          (388)

           

          416

           

          28

           

          (75)

           

          (380)

           

          416

           

          36

           

          (50)

           $(6,479)$1,505 $(4,974)$(0.08)

           

          (371)

           

          416

           

          45

           

          (25)

           (3,240) 752 (2,488) (0.04)

           

          (363)

           

          416

           

          53

           

          25

           3,240 (752) 2,488 0.04 

           

          477

           

          (673)

           

          (196)

           

          50

           6,479 (1,505) 4,974 0.08 

           

          985

           

          (1,345)

           

          (360)

           

          (0.01)

          75

          1,647

          (2,018)

          (371)

          (0.01)

          100

           12,958 (3,010) 9,948 0.16 

           

          4,009

           

          (2,690)

           

          1,319

           

          0.02

          200

           25,917 (6,020) 19,897 0.32 

          300

           38,875 (9,030) 29,845 0.49 

          400

           51,833 (12,040) 39,793 0.65 

          125

          6,845

          (3,363)

          3,482

          0.05

          150

          10,024

          (4,035)

          5,989

          0.09

          The hypothetical results assume that all LIBOR and prime rate changes would be effective on the first day of the period. However, the contractual LIBOR and prime rate reset dates would vary throughout the period, on either a monthly or quarterly basis, for both our investments and our Credit Facility. The hypothetical results would also be impacted by the changes in the amount of debt outstanding under our Credit Facility (with an increase (decrease) in the debt outstanding under the Credit Facility resulting in an (increase) decrease in the hypothetical interest expense).


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          Item 8. Consolidated Financial Statements and Supplementary Data


          Index to Consolidated Financial Statements

          Reports of Independent Registered Public Accounting Firm

          80

          77

          Consolidated Balance Sheets asSheets—As of December 31, 20182020 and 2017December 31, 2019

          82

          Consolidated Statements of Operations forOperations—For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018

          83

          Consolidated Statements of Changes in Net Assets forAssets—For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018

          84

          Consolidated Statements of Cash Flows forFlows— For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018

          85

          Consolidated SchedulesSchedule of Investments as of Investments—December 31, 2018 and 20172020

          86

          Consolidated Schedule of Investments—December 31, 2019

          108

          Notes to Consolidated Financial Statements

          129

          Consolidated Schedules of Investments in and Advances to Affiliates— For the years ended December 31, 2020 and 2019

          144

          169


          76



          Report of Independent Registered Public Accounting Firm

          Board of Directors and Stockholders'
          Stockholders

          Main Street Capital Corporation

          Opinion on the financial statements

          We have audited the accompanying consolidated balance sheets of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"“Company”), including the consolidated schedule of investments, as of December 31, 20182020 and 2017,2019, the related consolidated statements of operations, changes in net assets, and cash flows for each of the three years in the period ended December 31, 2018,2020, and the related notes schedules and financial highlights (collectively referred to as the "financial statements"“financial statements”). and the financial highlights for each of the five years in the period ended December 31, 2020. In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20182020 and 2017,2019, and the results of its operations, changes in net assets and its cash flows for each of the three years in the period ended December 31, 2018,2020, and the financial highlights for each of the five years in the period ended December 31, 2018,2020, in conformity with accounting principles generally accepted in the United States of America.

          We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”), the Company'sCompany’s internal control over financial reporting as of December 31, 2018,2020, based on criteria established in the 2013Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission ("COSO"(“COSO”), and our report dated March 1, 2019February 26, 2021 expressed an unqualified opinion.

          Basis for opinion

          These financial statements are the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

          We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures includeincluded examining, on a test basis, evidence supportingregarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included verification by confirmation of securities as of December 31, 20182020 and 2017,2019, by correspondence with thecustodians, portfolio companies and custodians,or agents, or by other appropriate auditing procedures where replies were not received. We believe that our audits provide a reasonable basis for our opinion.

          Critical audit matters

          The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

          77


          Fair Value Investments

          As described further in Note C to the financial statements, the Company’s investments at fair value were $2,684,866 thousand at December 31, 2020 and were measured using significant unobservable inputs and assumptions, categorized as Level 3 investments within the fair value hierarchy. Investment values are generally based on prices or valuation techniques, such as the income and market approach, that require inputs that are significant to the overall fair value measurement, and are observable in non-active markets or unobservable. The significant unobservable inputs disclosed by management include, among others, weighted-average cost of capital (“WACC”) inputs and market multiples for equity investments, and risk adjusted discount rates, percentage of expected principal recovery and third-party quotes for debt investments. Changes in these assumptions could have a significant impact on the determination of fair value. As such, we identified fair value of investments as a critical audit matter.

          The principal considerations for our determination that fair value of Level 3 investments are a critical audit matter are the significant management judgements used in developing complex valuation techniques and inherent estimation uncertainty. Auditing these investments requires a high degree of auditor judgement and subjectivity, in addition to the use of valuation professionals with specialized skills and knowledge, to evaluate the reasonableness of unobservable inputs and assumptions.

          The primary procedures we performed to address this critical audit matter included:

          Testing the design and operating effectiveness of controls over management’s process to determine investment fair value. Specifically, we identified and tested key attributes of management’s fair value determination review. These attributes addressed the relevance, adequacy and appropriateness of the data, assumptions, valuation methods, and mathematical accuracy used to determine investment fair value as of the reporting date.
          With the assistance of internal valuation specialists to evaluate and test management’s process to develop the valuation estimates or develop an independent expectation, we performed substantive audit procedures to determine mathematical accuracy and to determine that the data, valuation methods, and significant unobservable inputs and assumptions used to determine investment fair value as of the Company’s reporting date were reasonable. Certain key inputs/assumptions tested by us for a sample of investments, included the following:
          enterprise values,
          weighted average cost of capital (“WACC”),
          discount rates,
          forecasted cash flows and long-term growth rates,
          discount for lack of marketability,
          market multiples,
          weighting between valuation techniques,
          risk adjusted discount factor,
          percentage of expected principal recovery,
          third party quotes, in conjunction with other inputs, and
          78

          third-party appraisals.
          In testing the above, we considered available third-party market information and published studies, current economic conditions and subsequent events, and other information that could be corroborated to source information.

          /s/ GRANT THORNTON LLP

          We have served as the Company'sCompany’s auditor since 2007.

          Houston, Texas
          March 1, 2019

          February 26, 2021


          79



          Report of Independent Registered Public Accounting Firm

          Board of Directors and Stockholders'
          Stockholders

          Main Street Capital Corporation

          Opinion on internal control over financial reporting

          We have audited the internal control over financial reporting of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"“Company”) as of December 31, 2018,2020, based on criteria established in the 2013Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO)(“COSO”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018,2020, based on criteria established in the 2013Internal Control — Integrated Framework issued by COSO.

          We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”), the consolidated financial statements of the Company as of and for the year ended December 31, 20182019, and our report dated March 1, 2019,February 26, 2021 expressed an unqualified opinion on those financial statements.

          Basis for opinion

          The Company'sCompany’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management'sManagement’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company'sCompany’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

          We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

          Definition and limitations of internal control over financial reporting

          A company'scompany’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company'scompany’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company'scompany’s assets that could have a material effect on the financial statements.

          80


          Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

          /s/ GRANT THORNTON LLP

          Houston, Texas
          March 1, 2019


          February 26, 2021

          81



          MAIN STREET CAPITAL CORPORATION

          Consolidated Balance Sheets

          (dollars in thousands, except shares and per share amounts)


          December 31,
          2018
          December 31,
          2017

          ASSETS

            

          Investments at fair value:


           

           

          Control investments (cost: $750,618 and $530,034 as of December 31, 2018 and December 31, 2017, respectively)

          $1,004,993$750,706

          Affiliate investments (cost: $381,307 and $367,317 as of December 31, 2018 and December 31, 2017, respectively)

          359,890338,854

          Non-Control/Non-Affiliate investments (cost: $1,137,108 and $1,107,447 as of December 31, 2018 and December 31, 2017, respectively)

          1,089,0261,081,745

          Total investments (cost: $2,269,033 and $2,004,798 as of December 31, 2018 and December 31, 2017, respectively)

          2,453,9092,171,305

          Cash and cash equivalents


          54,181

          51,528

          Interest receivable and other assets

          39,67436,343

          Receivable for securities sold

          1,2012,382

          Deferred financing costs (net of accumulated amortization of $6,562 and $5,600 as of December 31, 2018 and December 31, 2017, respectively)

          4,4613,837

          Total assets

          $2,553,426$2,265,395

          December 31, 

          December 31, 

          ​​

              

          2020

              

          2019

          ASSETS

           

            

           

            

          Investments at fair value:

           

            

           

            

          Control investments (cost: $831,490 and $778,367 as of December 31, 2020 and December 31, 2019, respectively)

          $

          1,113,725

          $

          1,032,721

          Affiliate investments (cost: $416,479 and $351,764 as of December 31, 2020 and December 31, 2019, respectively)

           

          366,301

           

          330,287

          Non‑Control/Non‑Affiliate investments (cost: $1,268,740 and $1,297,587 as of December 31, 2020 and December 31, 2019, respectively)

           

          1,204,840

           

          1,239,316

          Total investments (cost: $2,516,709 and $2,427,718 as of December 31, 2020 and December 31, 2019, respectively)

           

          2,684,866

           

          2,602,324

          Cash and cash equivalents

           

          31,919

           

          55,246

          Interest receivable and other assets

           

          49,761

           

          50,458

          Deferred financing costs (net of accumulated amortization of $8,477 and $7,501 as of December 31, 2020 and December 31, 2019, respectively)

           

          2,818

           

          3,521

          Total assets

          $

          2,769,364

          $

          2,711,549

          LIABILITIES

            

           

           

            

          Credit facility



          $

          301,000


          $

          64,000

          $

          269,000

          $

          300,000

          SBIC debentures (par: $345,800 ($16,000 due within one year) and $295,800 as of December 31, 2018 and December 31, 2017, respectively)

          338,186288,483

          4.50% Notes due 2022 (par: $185,000 as of both December 31, 2018 and December 31, 2017)

          182,622182,015

          4.50% Notes due 2019 (par: $175,000 as of both December 31, 2018 and December 31, 2017)

          174,338173,616

          6.125% Notes (par: $90,655 as of December 31, 2017)

          89,057

          SBIC debentures (par: $309,800 ($40,000 due within one year) and $311,800 as of December 31, 2020 and December 31, 2019, respectively)

           

          303,972

           

          306,188

          5.20% Notes due 2024 (par: $450,000 and $325,000 as of December 31, 2020 and December 31, 2019, respectively)

           

          451,817

           

          324,595

          4.50% Notes due 2022 (par: $185,000 as of both December 31, 2020 and December 31, 2019)

           

          183,836

           

          183,229

          Accounts payable and other liabilities

          17,96220,168

           

          20,833

           

          24,532

          Payable for securities purchased

          28,25440,716

          Interest payable

          6,0415,273

           

          8,658

           

          7,292

          Dividend payable

          11,94811,146

           

          13,889

           

          13,174

          Deferred tax liability, net

          17,02610,553

           

          2,592

           

          16,149

          Total liabilities

          1,077,377885,027

           

          1,254,597

           

          1,175,159

          Commitments and contingencies (Note K)


           

           

           

           

            

          NET ASSETS


           

           

           

           

            

          Common stock, $0.01 par value per share (150,000,000 shares authorized; 61,264,861 and 58,660,680 shares issued and outstanding as of December 31, 2018 and December 31, 2017, respectively)


          613

          586

          Additional paid-in capital

          1,409,9451,310,780

          Total distributable earnings (loss)

          $65,491$69,002

          Common stock, $0.01 par value per share (150,000,000 shares authorized; 67,674,853 and 64,241,341 shares issued and outstanding as of December 31, 2020 and December 31, 2019, respectively)

           

          677

           

          643

          Additional paid‑in capital

           

          1,615,940

           

          1,512,435

          Total undistributed (overdistributed) earnings

           

          (101,850)

           

          23,312

          Total net assets

          1,476,0491,380,368

           

          1,514,767

           

          1,536,390

          Total liabilities and net assets

          $2,553,426$2,265,395

          $

          2,769,364

          $

          2,711,549

          ​​

          NET ASSET VALUE PER SHARE

          $24.09$23.53

          $

          22.35

          $

          23.91

          ​​

          The accompanying notes are an integral part of these consolidated financial statements


          82



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Operations

          (dollars in thousands, except shares and per share amounts)


           Twelve Months Ended December 31, 

           2018 2017 2016 

              

          Twelve Months Ended December 31, 

          2020

              

          2019

              

          2018

          INVESTMENT INCOME:

                 

           

            

           

            

           

            

          Interest, fee and dividend income:

                 

           

            

           

            

           

            

          Control investments

           $85,853 $62,762 $52,221 

          $

          81,155

          $

          92,414

          $

          85,853

          Affiliate investments

           36,800 37,509 37,702 

           

          32,435

           

          34,732

           

          36,800

          Non-Control/Non-Affiliate investments

           110,702 105,470 88,242 

          Interest, fee and dividend income

           233,355 205,741 178,165 

          Interest, fee and dividend income from marketable securities and idle funds investments

             174 

          Non‑Control/Non‑Affiliate investments

           

          109,024

           

          116,227

           

          110,702

          Total investment income

           233,355 205,741 178,339 

           

          222,614

           

          243,373

           

          233,355

          EXPENSES:

                 

           

           

            

           

            

          Interest

           (43,493) (36,479) (33,630)

           

          (49,587)

           

          (50,258)

           

          (43,493)

          Compensation

           (18,966) (18,560) (16,408)

           

          (18,981)

           

          (19,792)

           

          (18,966)

          General and administrative

           (11,868) (11,674) (9,284)

           

          (12,702)

           

          (12,546)

           

          (11,868)

          Share-based compensation

           (9,151) (10,027) (8,304)

          Share‑based compensation

           

          (10,828)

           

          (10,083)

           

          (9,151)

          Expenses allocated to the External Investment Manager

           6,768 6,370 5,089 

           

          7,429

           

          6,672

           

          6,768

          Total expenses

           (76,710) (70,370) (62,537)

           

          (84,669)

           

          (86,007)

           

          (76,710)

          NET INVESTMENT INCOME

           156,645 135,371 115,802 

           

          137,945

           

          157,366

           

          156,645

          NET REALIZED GAIN (LOSS):

                 

           

           

            

           

            

          Control investments

           4,681 259 32,220 

           

          (59,594)

           

          4,797

           

          4,681

          Affiliate investments

           20 8,044 25,167 

           

          2,203

           

          (565)

           

          20

          Non-Control/Non-Affiliate investments

           (3,360) 7,879 (26,317)

          Marketable securities and idle funds investments

             (1,681)

          Non‑Control/Non‑Affiliate investments

           

          (58,556)

           

          (19,344)

           

          (3,360)

          Realized loss on extinguishment of debt

           (2,896) (5,217)  

           

          (534)

           

          (5,689)

           

          (2,896)

          Total net realized gain (loss)

           (1,555) 10,965 29,389 

          Total net realized loss

           

          (116,481)

           

          (20,801)

           

          (1,555)

          NET UNREALIZED APPRECIATION (DEPRECIATION):

                 

           

           

            

           

            

          Control investments

           37,826 63,627 (12,674)

           

          37,924

           

          (980)

           

          37,826

          Affiliate investments

           12,062 (11,330) (35,540)

           

          (29,038)

           

          990

           

          12,062

          Non-Control/Non-Affiliate investments

           (31,907) (9,752) 39,909 

          Marketable securities and idle funds investments

             1,729 

          Non‑Control/Non‑Affiliate investments

           

          (14,968)

           

          (10,214)

           

          (31,907)

          SBIC debentures

           1,294 6,212 (943)

           

          460

           

          4,450

           

          1,294

          Total net unrealized appreciation (depreciation)

           19,275 48,757 (7,519)

           

          (5,622)

           

          (5,754)

           

          19,275

          INCOME TAXES:

                 

           

           

            

           

            

          Federal and state income, excise and other taxes

           (319) (5,206) (2,089)

           

          (590)

           

          (3,546)

           

          (319)

          Deferred taxes

           (5,833) (19,265) 3,316 

           

          14,131

           

          2,304

           

          (5,833)

          Income tax benefit (provision)

           (6,152) (24,471) 1,227 

           

          13,541

           

          (1,242)

           

          (6,152)

          NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS

           $168,213 $170,622 $138,899 

          NET INVESTMENT INCOME PER SHARE — BASIC AND DILUTED

           $2.60 $2.39 $2.23 

          NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE — BASIC AND DILUTED

           $2.80 $3.01 $2.67 

          WEIGHTED AVERAGE SHARES OUTSTANDING — BASIC AND DILUTED

           60,176,843 56,691,913 52,025,002 

          NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS

          $

          29,383

          $

          129,569

          $

          168,213

          NET INVESTMENT INCOME PER SHARE—BASIC AND DILUTED

          $

          2.10

          $

          2.50

          $

          2.60

          NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS PER
          SHARE—BASIC AND DILUTED

          $

          0.45

          $

          2.06

          $

          2.80

          WEIGHTED AVERAGE SHARES
          OUTSTANDING—BASIC AND DILUTED

           

          65,705,963

           

          62,960,591

           

          60,176,843

          The accompanying notes are an integral part of these consolidated financial statements


          83



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Changes in Net Assets

          (dollars in thousands, except shares)


           Common Stock  
            
            
           

           Number of
          Shares
           Par
          Value
           Additional
          Paid-In
          Capital
           Total
          Distributable
          Earnings (Loss)
           Total Net
          Asset Value
           

          Balances at December 31, 2015

           50,413,744 $504 $1,011,467 $58,923 $1,070,894 

          Public offering of common stock, net of offering costs

           3,324,646 33 112,006  112,039 

          Share-based compensation

             8,304  8,304 

          Purchase of vested stock for employee payroll tax withholding

           (80,750) (1) (2,592)  (2,593)

          Dividend reinvestment

           434,631 4 14,073  14,077 

          Amortization of directors' deferred compensation

             628  628 

          Issuance of restricted stock, net of forfeited shares

           262,586 3 (3)   

          Dividends to stockholders ($2.725 dividends per share comprised of $2.175 regular monthly dividends and $0.550 supplemental dividends)

              (142,573) (142,573)

          Cumulative-effect to retained earnings for excess tax benefit

              1,806 1,806 

          Net increase resulting from operations

              138,899 138,899 

          Balances at December 31, 2016

           54,354,857 $543 $1,143,883 $57,055 $1,201,481 

          Common Stock

          Additional

          Total

          Number of

          Par

          PaidIn

          Undistributed

          Total Net

          Public offering of common stock, net of offering costs

           3,947,165 40 150,946  150,986 

          Share-based compensation

             10,027  10,027 

          Purchase of vested stock for employee payroll tax withholding

           (113,371) (1) (4,350)  (4,351)

          Investment through issuance of unregistered shares

           11,464  442  442 

          Dividend reinvestment

           234,513 2 9,154  9,156 

          Amortization of directors' deferred compensation

             680  680 

          Issuance of restricted stock, net of forfeited shares

           226,052 2 (2)   

          Dividends to stockholders ($2.785 dividends per share comprised of $2.235 regular monthly dividends and $0.550 supplemental dividends)

              (158,675) (158,675)

          Net increase resulting from operations

              170,622 170,622 

              

          Shares

              

          Value

              

          Capital

              

          Earnings

              

          Asset Value

          Balances at December 31, 2017

           58,660,680 $586 $1,310,780 $69,002 $1,380,368 

           

          58,660,680

          $

          586

          $

          1,310,780

          $

          69,002

          $

          1,380,368

          Public offering of common stock, net of offering costs

           2,069,103 21 78,373  78,394 

           

          2,069,103

           

          21

           

          78,373

           

           

          78,394

          Share-based compensation

             9,151  9,151 

          Share‑based compensation

           

           

           

          9,151

           

           

          9,151

          Purchase of vested stock for employee payroll tax withholding

           (109,693) (1) (4,076)  (4,077)

           

          (109,693)

           

          (1)

           

          (4,076)

           

           

          (4,077)

          Dividend reinvestment

           394,403 4 14,870  14,874 

           

          394,403

           

          4

           

          14,870

           

           

          14,874

          Amortization of directors' deferred compensation

             850  850 

          Amortization of directors’ deferred compensation

           

           

           

          850

           

           

          850

          Issuance of restricted stock, net of forfeited shares

           250,368 3 (3)   

           

          250,368

           

          3

           

          (3)

           

           

          Dividends to stockholders ($2.845 dividends per share comprised of $2.295 regular monthly dividends and $0.550 supplemental dividends)

              (171,724) (171,724)

          Dividends to stockholders

           

           

           

           

          (171,724)

           

          (171,724)

          Net increase resulting from operations

              168,213 168,213 

           

           

           

           

          168,213

           

          168,213

          Balances at December 31, 2018

           61,264,861 $613 $1,409,945 $65,491 $1,476,049 

           

          61,264,861

          $

          613

          $

          1,409,945

          $

          65,491

          $

          1,476,049

          Public offering of common stock, net of offering costs

           

          2,259,729

           

          23

           

          89,246

           

           

          89,269

          Share‑based compensation

           

           

           

          10,083

           

           

          10,083

          Purchase of vested stock for employee payroll tax withholding

           

          (103,730)

           

          (1)

           

          (3,941)

           

           

          (3,942)

          Dividend reinvestment

           

          441,927

           

          4

           

          18,081

           

           

          18,085

          Amortization of directors’ deferred compensation

           

           

           

          866

           

           

          866

          Issuance of restricted stock, net of forfeited shares

           

          390,150

           

          4

           

          (4)

           

           

          Dividends to stockholders

           

           

           

          401

           

          (183,990)

           

          (183,589)

          Reclassification for certain permanent book-to-tax differences

          (12,242)

          12,242

          Net increase resulting from operations

           

           

           

           

          129,569

           

          129,569

          Balances at December 31, 2019

           

          64,252,937

          $

          643

          $

          1,512,435

          $

          23,312

          $

          1,536,390

          Public offering of common stock, net of offering costs

           

          2,662,777

           

          27

           

          84,354

           

           

          84,381

          Share‑based compensation

           

           

           

          10,828

           

           

          10,828

          Purchase of vested stock for employee payroll tax withholding

           

          (89,447)

           

          (1)

           

          (1,890)

           

           

          (1,891)

          Dividend reinvestment

           

          517,796

           

          4

           

          16,230

           

           

          16,234

          Amortization of directors’ deferred compensation

           

           

           

          853

           

           

          853

          Issuance of restricted stock, net of forfeited shares

           

          417,969

           

          4

           

          (4)

           

           

          Dividends to stockholders

           

           

           

          385

           

          (161,796)

           

          (161,411)

          Reclassification for certain permanent book-to-tax differences

           

           

           

          (7,251)

           

          7,251

           

          Net increase resulting from operations

           

           

           

           

          29,383

           

          29,383

          Balances at December 31, 2020

           

          67,762,032

          $

          677

          $

          1,615,940

          $

          (101,850)

          $

          1,514,767

          The accompanying notes are an integral part of these consolidated financial statements


          84



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Cash Flows

          (dollars in thousands)


           Twelve Months Ended December 31, 

           2018 2017 2016 

          Year Ended

              

          December 31, 

          2020

             

          2019

             

          2018

          CASH FLOWS FROM OPERATING ACTIVITIES

                 

          Net increase in net assets resulting from operations

           $168,213 $170,622 $138,899 

          $

          29,383

          $

          129,569

          $

          168,213

          Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities:

                 

          Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:

          Investments in portfolio companies

           (962,456) (876,744) (641,197)

          (669,007)

          (664,062)

          (962,456)

          Proceeds from sales and repayments of debt investments in portfolio companies

           626,059 737,297 409,542 

          443,573

          439,363

          626,059

          Proceeds from sales and return of capital of equity investments in portfolio companies

           77,103 82,128 76,731 

          34,439

          38,536

          77,103

          Investments in marketable securities and idle funds investments

             (523)

          Proceeds from sales and repayments of marketable securities and idle funds investments

             4,316 

          Net unrealized (appreciation) depreciation

           (19,275) (48,757) 7,519 

          5,622

          5,754

          (19,275)

          Net realized (gain) loss

           1,555 (10,965) (29,389)

          Net realized loss

          116,481

          20,801

          1,555

          Accretion of unearned income

           (14,724) (17,008) (10,211)

          (11,756)

          (12,070)

          (14,724)

          Payment-in-kind interest

           (2,304) (4,884) (6,497)

          (6,225)

          (5,018)

          (2,304)

          Cumulative dividends

           (2,301) (3,226) (2,200)

          (1,791)

          (2,382)

          (2,301)

          Share-based compensation expense

           9,151 10,027 8,304 

          10,828

          10,083

          9,151

          Amortization of deferred financing costs

           3,299 2,784 2,582 

          2,513

          3,717

          3,299

          Deferred tax provision

           5,833 19,265 (3,316)

          Deferred tax (benefit) provision

          (14,131)

          (2,304)

          5,833

          Changes in other assets and liabilities:

                 

          Interest receivable and other assets

           (2,276) 2,080 (2,564)

          4,599

          (6,680)

          (2,276)

          Interest payable

           768 1,170 144 

          1,366

          1,251

          768

          Accounts payable and other liabilities

           (1,356) 6,643 2,541 

          (2,846)

          7,436

          (1,356)

          Deferred fees and other

           3,645 2,470 2,589 

          2,868

          2,172

          3,645

          Net cash used in operating activities

          (54,084)

          (33,834)

          (109,066)

          Net cash provided by (used in) operating activities

           (109,066) 72,902 (42,730)

          CASH FLOWS FROM FINANCING ACTIVITIES

           
           
           
           
           
           
           

          Proceeds from public offering of common stock, net of offering costs

           78,394 150,986 112,039 

          84,381

          89,269

          78,394

          Proceeds from public offering of 4.50% Notes due 2022

            185,000  

          Proceeds from public offering of 5.20% Notes due 2024

          125,000

          325,000

          -

          Dividends paid

           (156,048) (148,421) (127,522)

          (144,462)

          (164,278)

          (156,048)

          Proceeds from issuance of SBIC debentures

           54,000 81,000 15,000 

          40,000

          -

          54,000

          Repayments of SBIC debentures

           (4,000) (25,200)  

          (42,000)

          (34,000)

          (4,000)

          Redemption of 6.125% Notes

           (90,655)  (83)

          -

          -

          (90,655)

          Redemption of 4.50% Notes due 2019

          -

          (175,000)

          -

          Proceeds from credit facility

           632,000 448,000 390,000 

          399,000

          639,000

          632,000

          Repayments on credit facility

           (395,000) (727,000) (338,000)

          (430,000)

          (640,000)

          (395,000)

          Payment of deferred issuance costs and SBIC debenture fees

           (2,895) (5,868) (1,962)

          Debt issuance premiums (costs), net

          729

          (1,150)

          (2,895)

          Purchases of vested stock for employee payroll tax withholding

           (4,077) (4,351) (2,593)

          (1,891)

          (3,942)

          (4,077)

          Net cash provided by financing activities

          30,757

          34,899

          111,719

          Net cash provided by (used in) financing activities

           111,719 (45,854) 46,879 

          Net increase in cash and cash equivalents

           2,653 27,048 4,149 

          Net increase (decrease) in cash and cash equivalents

          (23,327)

          1,065

          2,653

          CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

           51,528 24,480 20,331 

          55,246

          54,181

          51,528

          CASH AND CASH EQUIVALENTS AT END OF PERIOD

           $54,181 $51,528 $24,480 

          $

          31,919

          $

          55,246

          $

          54,181

          Supplemental cash flow disclosures:

                 

          Interest paid

           $39,300 $32,411 $30,756 

          $

          45,582

          $

          45,167

          $

          39,300

          Taxes paid

           $5,112 $2,398 $1,495 

          $

          3,136

          $

          2,300

          $

          5,112

          Operating non-cash activities:

          Right-of-use assets obtained in exchange for operating lease liabilities

          $

          -

          $

          5,240

          $

          -

          Non-cash financing activities:

                 

          Shares issued pursuant to the DRIP

           $14,874 $9,156 $14,077 

          $

          16,234

          $

          18,085

          $

          14,874

          The accompanying notes are an integral part of these consolidated financial statements


          85


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          2020

          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
           

          Control Investments(5)

             

           

           

           

                 

            

          Access Media Holdings, LLC(10)

           July 22, 2015 

          Private Cable Operator

                 

              

          10% PIK Secured Debt (Maturity — July 22, 2020)(14)(19)

           $23,828 $23,828 $8,558 

              

          Preferred Member Units (9,481,500 units)(27)

             9,375 (284)

              

          Member Units (45 units)

             1  

                33,204 8,274 

            

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Control Investments (5)

          ASC Interests, LLC

           August 1, 2013 

          Recreational and Educational Shooting Facility

                 

          August 1, 2013

          Recreational and Educational Shooting Facility

              

          11% Secured Debt (Maturity — July 31, 2020)

           1,650 1,622 1,622 

              

          Member Units (1,500 units)

             1,500 1,370 

          Secured Debt

          13.00%

          7/31/2022

          $

          1,750

          $

          1,715

          $

          1,715

                3,122 2,992 

            

          ATS Workholding, LLC(10)

           March 10, 2014 

          Manufacturer of Machine Cutting Tools and Accessories

                 

              

          5% Secured Debt (Maturity — November 16, 2021)

           4,877 4,507 4,390 

              

          Preferred Member Units (3,725,862 units)

             3,726 3,726 

          Member Units

          1,500

          1,500

          1,120

                8,233 8,116 

            

          Bond-Coat, Inc.

           December 28, 2012 

          Casing and Tubing Coating Services

                 

              

          12% Secured Debt (Maturity — December 28, 2020)

           11,596 11,367 11,596 

              

          Common Stock (57,508 shares)

             6,350 9,370 

          3,215

          2,835

                17,717 20,966 

            

          Analytical Systems Keco, LLC

          August 16, 2019

          Manufacturer of Liquid and Gas Analyzers

          Secured Debt

          12.00% (L+10.00%, Floor 2.00%)

          8/16/2024

          5,155

          4,874

          4,874

          (9)

          Preferred Member Units

          3,200

          3,200

          3,200

          Warrants

          420

          8/16/2029

          316

          10

          (27)

          8,390

          8,084

          ATS Workholding, LLC

          (10)

          March 10, 2014

          Manufacturer of Machine Cutting Tools and Accessories

          Secured Debt

          5.00%

          11/16/2021

          4,982

          4,824

          3,347

          (14)

          Preferred Member Units

          3,725,862

          3,726

          -

          8,550

          3,347

          Project BarFly, LLC

          (10)

          August 31, 2015

          Casual Restaurant Group

          Secured Debt

          7.00%

          10/31/2024

          343

          343

          343

          Member Units

          37

          1,584

          1,584

          1,927

          1,927

          Bolder Panther Group, LLC

          December 31, 2020

          Consumer Goods and Fuel Retailer

          Secured Debt

          10.50% (L+9.00%, Floor 1.50%)

          12/31/2025

          27,500

          27,225

          27,225

          (9)

          Class A Preferred Member Units

          14.00%

          10,194

          10,194

          (30)

          Class B Preferred Member Units

          140,000

          14,000

          14,000

          (30)

          51,419

          51,419

          Bond-Coat, Inc.

          December 28, 2012

          Casing and Tubing Coating Services

          Common Stock

          57,508

          6,350

          2,040

          Brewer Crane Holdings, LLC

           January 9, 2018 

          Provider of Crane Rental and Operating Services

                 

          January 9, 2018

          Provider of Crane Rental and Operating Services

              

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.35%, Secured Debt (Maturity — January 9, 2023)(9)

           9,548 9,467 9,467 

              

          Preferred Member Units (2,950 units)(8)

             4,280 4,280 

          Secured Debt

          11.00% (L+10.00%, Floor 1.00%)

          1/9/2023

          8,556

          8,513

          8,513

          (9)

                13,747 13,747 

            

          Preferred Member Units

          2,950

          4,280

          5,850

          (8)

          12,793

          14,363

          Bridge Capital Solutions Corporation

          April 18, 2012

          Financial Services and Cash Flow Solutions Provider

          Secured Debt

          13.00%

          12/11/2024

          8,813

          8,403

          8,403

          Warrants

          82

          7/25/2026

          2,132

          3,220

          (27)

          Secured Debt

          13.00%

          12/11/2024

          1,000

          998

          998

          (30)

          Preferred Member Units

          17,742

          1,000

          1,000

          (8) (30)

          12,533

          13,621

          Café Brazil, LLC

           April 20, 2004 

          Casual Restaurant Group

                 

          April 20, 2004

          Casual Restaurant Group

              

          Member Units (1,233 units)(8)

             1,742 4,780 

            

          California Splendor Holdings LLC

           March 30, 2018 

          Processor of Frozen Fruits

                 

              

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — March 30, 2023)(9)

           11,091 10,928 10,928 

              

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.50%, Secured Debt (Maturity — March 30, 2023)(9)

           28,000 27,755 27,755 

              

          Preferred Member Units (6,157 units)(8)

             10,775 9,745 

          Member Units

          1,233

          1,742

          2,030

          (8)

                49,458 48,428 

            


          86


          Table of Contents

          MAIN STREET CAPITAL CORPORATION


          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          California Splendor Holdings LLC

          March 30, 2018

          Processor of Frozen Fruits

          Secured Debt

          9.00% (L+8.00%, Floor 1.00%)

          3/30/2023

          8,100

          8,014

          8,043

          (9)

          Secured Debt

          11.00% (L+10.00%, Floor 1.00%)

          3/30/2023

          28,000

          27,854

          27,789

          (9)

          Preferred Member Units

          6,725

          8,255

          8,255

          (8)

          Preferred Member Units

          6,157

          10,775

          6,241

          (8)

          54,898

          50,328

          CBT Nuggets, LLC

          June 1, 2006

          Produces and Sells IT Training Certification Videos

          Member Units

          416

          1,300

          46,080

          (8)

          Centre Technologies Holdings, LLC

          January 4, 2019

          Provider of IT Hardware Services and Software Solutions

          Secured Debt

          12.00% (L+10.00%, Floor 2.00%)

          1/4/2024

          11,628

          11,549

          11,549

          (9)

          Preferred Member Units

          12,696

          5,840

          6,160

          17,389

          17,709

          Chamberlin Holding LLC

          February 26, 2018

          Roofing and Waterproofing Specialty Contractor

          Secured Debt

          9.00% (L+8.00%, Floor 1.00%)

          2/26/2023

          15,212

          15,136

          15,212

          (9)

          Member Units

          4,347

          11,440

          28,070

          (8)

          Member Units

          1,047,146

          1,322

          1,270

          (8) (30)

          27,898

          44,552

          Charps, LLC

          February 3, 2017

          Pipeline Maintenance and Construction

          Unsecured Debt

          10.00% (8.67% Cash, 1.33% PIK)

          1/31/2024

          9,388

          7,641

          8,475

          (19)

          Secured Debt

          15.00%

          6/5/2022

          669

          669

          669

          Preferred Member Units

          1,600

          400

          10,520

          (8)

          8,710

          19,664

          Clad-Rex Steel, LLC

          December 20, 2016

          Specialty Manufacturer of Vinyl-Clad Metal

          Secured Debt

          10.50% (L+9.50%, Floor 1.00%)

          12/20/2021

          10,880

          10,853

          10,853

          (9)

          Member Units

          717

          7,280

          8,610

          (8)

          Secured Debt

          10.00%

          12/20/2036

          1,111

          1,100

          1,100

          (30)

          Member Units

          800

          210

          530

          (30)

          19,443

          21,093

          CMS Minerals Investments

          January 30, 2015

          Oil & Gas Exploration & Production

          Member Units

          100

          2,179

          1,624

          (30)

          Cody Pools, Inc.

          March 6, 2020

          Designer of Residential and Commercial Pools

          Secured Debt

          12.25% (L+10.50%, Floor 1.75%)

          3/6/2025

          14,216

          14,092

          14,216

          (9)

          Preferred Member Units

          587

          8,317

          14,940

          22,409

          29,156

          CompareNetworks Topco, LLC

          January 29, 2019

          Internet Publishing and Web Search Portals

          Secured Debt

          12.00% (L+11.00%, Floor 1.00%)

          1/29/2024

          7,954

          7,910

          7,953

          (9)

          Preferred Member Units

          1,975

          1,975

          6,780

          (8)

          9,885

          14,733

          87


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Copper Trail Fund Investments

          (12) (13)

          July 17, 2017

          Investment Partnership

          LP Interests (CTMH, LP)

          38.8%

          747

          747

          (31)

          Datacom, LLC

          May 30, 2014

          Technology and Telecommunications Provider

          Secured Debt

          8.00%

          5/31/2021

          1,800

          1,800

          1,615

          (14)

          Secured Debt

          10.50% PIK

          5/31/2021

          12,507

          12,475

          10,531

          (14) (19)

          Class A Preferred Member Units

          -

          1,294

          -

          Class B Preferred Member Units

          6,453

          6,030

          -

          21,599

          12,146

          Digital Products Holdings LLC

          April 1, 2018

          Designer and Distributor of Consumer Electronics

          Secured Debt

          11.00% (L+10.00%, Floor 1.00%)

          4/1/2023

          18,173

          18,077

          18,077

          (9)

          Preferred Member Units

          3,857

          9,501

          9,835

          (8)

          27,578

          27,912

          Direct Marketing Solutions, Inc.

          February 13, 2018

          Provider of Omni-Channel Direct Marketing Services

          Secured Debt

          12.00% (L+11.00%, Floor 1.00%)

          2/13/2023

          15,090

          15,007

          15,007

          (9)

          Preferred Stock

          8,400

          8,400

          19,380

          23,407

          34,387

          Gamber-Johnson Holdings, LLC ("GJH")

          June 24, 2016

          Manufacturer of Ruggedized Computer Mounting Systems

          Secured Debt

          9.00% (L+7.00%, Floor 2.00%)

          6/24/2021

          19,838

          19,807

          19,838

          (9)

          Member Units

          8,619

          14,844

          52,490

          (8)

          34,651

          72,328

          Garreco, LLC

          July 15, 2013

          Manufacturer and Supplier of Dental Products

          Secured Debt

          9.00% (L+8.00%, Floor 1.00%, Ceiling 1.50%)

          1/31/2021

          4,519

          4,519

          4,519

          (9)

          Member Units

          1,200

          1,200

          1,410

          5,719

          5,929

          GRT Rubber Technologies LLC ("GRT")

          December 19, 2014

          Manufacturer of Engineered Rubber Products

          Secured Debt

          7.15% (L+7.00%)

          12/31/2023

          16,775

          16,775

          16,775

          Member Units

          5,879

          13,065

          44,900

          (8)

          29,840

          61,675

          Gulf Manufacturing, LLC

          August 31, 2007

          Manufacturer of Specialty Fabricated Industrial Piping Products

          Member Units

          438

          2,980

          4,510

          (8)

          Gulf Publishing Holdings, LLC

          April 29, 2016

          Energy Industry Focused Media and Publishing

          Secured Debt

          10.50% (5.25% Cash, 5.25% PIK) (L+9.50%, Floor 1.00%)

          9/30/2020

          250

          250

          250

          (9) (17) (19)

          Secured Debt

          12.50% (6.25% Cash, 6.25% PIK)

          4/29/2021

          13,147

          13,135

          12,044

          (19)

          Member Units

          3,681

          3,681

          -

          17,066

          12,294

          88


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Harris Preston Fund Investments

          (12) (13)

          October 1, 2017

          Investment Partnership

          LP Interests (2717 MH, L.P.)

          49.3%

          2,599

          2,702

          (31)

          LP Interests (2717 HPP-MS, L.P.)

          49.3%

          250

          250

          (31)

          2,849

          2,952

          Harrison Hydra-Gen, Ltd.

          June 4, 2010

          Manufacturer of Hydraulic Generators

          Common Stock

          107,456

          718

          5,450

          (8)

          Jensen Jewelers of Idaho, LLC

          November 14, 2006

          Retail Jewelry Store

          Secured Debt

          10.00% (Prime+6.75%, Floor 2.00%)

          11/14/2023

          3,400

          3,374

          3,400

          (9)

          Member Units

          627

          811

          7,620

          (8)

          4,185

          11,020

          J&J Services, Inc.

          October 31, 2019

          Provider of Dumpster and Portable Toilet Rental Services

          Secured Debt

          11.50%

          10/31/2024

          12,800

          12,697

          12,800

          Preferred Stock

          2,814

          ���

          7,085

          12,680

          19,782

          25,480

          KBK Industries, LLC

          January 23, 2006

          Manufacturer of Specialty Oilfield and Industrial Products

          Member Units

          325

          783

          13,200

          (8)

          Kickhaefer Manufacturing Company, LLC

          October 31, 2018

          Precision Metal Parts Manufacturing

          Secured Debt

          11.50%

          10/31/2023

          22,415

          22,269

          22,269

          Member Units

          581

          12,240

          12,240

          Secured Debt

          9.00%

          10/31/2048

          3,948

          3,909

          3,909

          Member Units

          800

          992

          1,160

          (8) (30)

          39,410

          39,578

          Market Force Information, LLC

          July 28, 2017

          Provider of Customer Experience Management Services

          Secured Debt

          12.00% (L+11.00%, Floor 1.00%)

          7/28/2023

          1,600

          1,600

          1,600

          (9)

          Secured Debt

          12.00% PIK

          7/28/2023

          26,079

          25,952

          13,562

          (14) (19)

          Member Units

          743,921

          16,642

          -

          44,194

          15,162

          MH Corbin Holding LLC

          August 31, 2015

          Manufacturer and Distributor of Traffic Safety Products

          Secured Debt

          13.00% (10.00% Cash, 3.00% PIK)

          3/31/2022

          8,570

          8,527

          8,280

          (19)

          Preferred Member Units

          66,000

          4,400

          2,370

          Preferred Member Units

          4,000

          6,000

          -

          18,927

          10,650

          MSC Adviser I, LLC

          (16)

          November 22, 2013

          Third Party Investment
          Advisory Services

          Member Units

          29,500

          116,760

          (8) (31)

          Mystic Logistics Holdings, LLC

          August 18, 2014

          Logistics and Distribution Services Provider for Large Volume Mailers

          Secured Debt

          12.00%

          1/17/2022

          6,733

          6,723

          6,723

          Common Stock

          5,873

          2,720

          8,990

          (8)

          9,443

          15,713

          NAPCO Precast, LLC

          January 31, 2008

          Precast Concrete Manufacturing

          Member Units

          2,955

          2,975

          16,100

          (8)

          89


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Nebraska Vet AcquireCo, LLC (NVS)

          December 31, 2020

          Mixed-Animal Veterinary and Animal Health Product Provider

          Secured Debt

          12.00%

          12/31/2025

          10,500

          10,395

          10,395

          Preferred Member Units

          6,500

          6,500

          6,500

          16,895

          16,895

          NexRev LLC

          February 28, 2018

          Provider of Energy Efficiency Products & Services

          Secured Debt

          11.00%

          2/28/2023

          17,097

          17,016

          16,726

          Preferred Member Units

          86,400,000

          6,880

          1,470

          (8)

          23,896

          18,196

          NRI Clinical Research, LLC

          September 8, 2011

          Clinical Research Service Provider

          Secured Debt

          9.00%

          6/8/2022

          5,620

          5,572

          5,620

          Warrants

          251,723

          6/8/2027

          252

          1,490

          (27)

          Member Units

          1,454,167

          765

          5,600

          (8)

          6,589

          12,710

          NRP Jones, LLC

          December 22, 2011

          Manufacturer of Hoses, Fittings and Assemblies

          Secured Debt

          12.00%

          3/20/2023

          2,080

          2,080

          2,080

          Member Units

          65,962

          3,717

          2,821

          (8)

          5,797

          4,901

          NuStep, LLC

          January 31, 2017

          Designer, Manufacturer and Distributor of Fitness Equipment

          Secured Debt

          12.00%

          1/31/2022

          17,240

          17,193

          17,193

          Preferred Member Units

          406

          10,200

          10,780

          27,393

          27,973

          OMi Holdings, Inc.

          April 1, 2008

          Manufacturer of Overhead Cranes

          Common Stock

          1,500

          1,080

          20,380

          (8)

          Pearl Meyer Topco LLC

          April 27, 2020

          Provider of Executive Compensation Consulting Services

          Secured Debt

          12.00%

          4/27/2025

          37,513

          37,202

          37,202

          Member Units

          13,800

          13,000

          15,940

          (8)

          50,202

          53,142

          Pegasus Research Group, LLC

          January 6, 2011

          Provider of Telemarketing and Data Services

          Member Units

          460

          1,290

          8,830

          (8)

          PPL RVs, Inc.

          June 10, 2010

          Recreational Vehicle Dealer

          Secured Debt

          7.50% (L+7.00%, Floor 0.50%)

          11/15/2022

          11,855

          11,781

          11,806

          (9)

          Common Stock

          2,000

          2,150

          11,500

          (8)

          13,931

          23,306

          Principle Environmental, LLC (d/b/a TruHorizon Environmental Solutions)

          February 1, 2011

          Noise Abatement Service Provider

          Secured Debt

          13.00%

          4/30/2023

          6,397

          6,335

          6,397

          Preferred Member Units

          19,631

          4,600

          10,500

          (8)

          Warrants

          1,018

          1/31/2021

          1,200

          870

          (27)

          12,135

          17,767

          Quality Lease Service, LLC

          June 8, 2015

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Member Units

          1,000

          11,063

          4,460

          90


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2)
           (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          River Aggregates, LLC

          March 30, 2011

          Processor of Construction Aggregates

          Member Units

          1,500

          369

          3,240

          (30)

          Tedder Industries, LLC

          August 31, 2018

          Manufacturer of Firearm Holsters and Accessories

          Secured Debt

          12.00%

          8/31/2023

          16,400

          16,301

          16,301

          Preferred Member Units

          479

          8,136

          8,136

          24,437

          24,437

          Trantech Radiator Topco, LLC

          May 31, 2019

          Transformer Cooling Products and Services

          Secured Debt

          12.00%

          5/31/2024

          8,720

          8,644

          8,644

          Common Stock

          615

          4,655

          6,030

          (8)

          13,299

          14,674

          UnionRock Energy Fund II, LP

          (12) (13)

          June 15, 2020

          Oil & Gas Exploration & Production

          LP Interests

          49.6%

          2,894

          2,894

          (31)

          Vision Interests, Inc.

          June 5, 2007

          Manufacturer / Installer of Commercial Signage

          Secured Debt

          13.00%

          9/30/2019

          2,028

          2,028

          2,028

          (17)

          Series A Preferred Stock

          3,000,000

          3,000

          3,160

          5,028

          5,188

          Ziegler's NYPD, LLC

          October 1, 2008

          Casual Restaurant Group

          Secured Debt

          6.50%

          10/1/2022

          1,000

          1,000

          979

          Secured Debt

          12.00%

          10/1/2022

          625

          625

          625

          Secured Debt

          14.00%

          10/1/2022

          2,750

          2,750

          2,750

          Warrants

          587

          10/1/2025

          600

          -

          (27)

          Preferred Member Units

          10,072

          2,834

          1,780

          7,809

          6,134

          Subtotal Control Investments (73.5% of net assets at fair value)

          $

          831,490

          $

          1,113,725

          91


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Affiliate Investments (6)

          AAC Holdings, Inc.

          (11)

          June 30, 2017

          Substance Abuse Treatment Service Provider

          Secured Debt

          18.00% (10.00% Cash, 8.00% PIK)

          6/25/2025

          9,406

          9,187

          9,187

          (19)

          Common Stock

          593,928

          3,148

          3,148

          Warrants

          554,353

          12/11/2025

          -

          2,938

          (27)

          12,335

          15,273

          AFG Capital Group, LLC

          November 7, 2014

          Provider of Rent-to-Own Financing Solutions and Services

          Secured Debt

          10.00%

          5/25/2022

          491

          491

          491

          Preferred Member Units

          186

          1,200

          5,810

          1,691

          6,301

          American Trailer Rental Group LLC

          June 7, 2017

          Provider of Short-term Trailer and Container Rental

          Member Units

          73,493

          8,596

          16,010

          (30)

          BBB Tank Services, LLC

          April 8, 2016

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

          Unsecured Debt

          12.00% (L+11.00%, Floor 1.00%)

          4/8/2021

          4,800

          4,773

          4,722

          (9)

          Preferred Stock (non-voting)

          15.00% PIK

          151

          151

          (8) (19)

          Member Units

          800,000

          800

          280

          5,724

          5,153

          Boccella Precast Products LLC

          June 30, 2017

          Manufacturer of Precast Hollow Core Concrete

          Member Units

          2,160,000

          2,256

          6,040

          (8)

          Buca C, LLC

          June 30, 2015

          Casual Restaurant Group

          Secured Debt

          10.25% (L+9.25%, Floor 1.00%)

          6/30/2020

          19,004

          19,004

          14,256

          (9) (17)

          Preferred Member Units

          6

          6.00% PIK

          4,770

          -

          (8) (19)

          23,774

          14,256

          CAI Software LLC

          October 10, 2014

          Provider of Specialized Enterprise Resource Planning Software

          Secured Debt

          12.50%

          12/7/2023

          47,474

          47,133

          47,474

          Member Units

          77,960

          2,095

          7,190

          (8)

          49,228

          54,664

          Chandler Signs Holdings, LLC

          (10)

          January 4, 2016

          Sign Manufacturer

          Class A Units

          1,500,000

          1,500

          1,460

          Charlotte Russe, Inc

          (11)

          May 28, 2013

          Fast-Fashion Retailer to Young Women

          Common Stock

          19,041

          3,141

          -

          Classic H&G Holdings, LLC

          March 12, 2020

          Provider of Engineered Packaging Solutions

          Secured Debt

          12.00%

          3/12/2025

          24,800

          24,583

          24,800

          Preferred Member Units

          154

          5,760

          9,510

          (8)

          30,343

          34,310

          92


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Congruent Credit Opportunities Funds

          (12) (13)

          January 24, 2012

          Investment Partnership

          LP Interests (Congruent Credit Opportunities Fund
          II, LP)

          19.8%

          4,449

          94

          (31)

          LP Interests (Congruent Credit Opportunities Fund
          III, LP)

          17.4%

          11,741

          11,540

          (8) (31)

          16,190

          11,634

          Copper Trail Fund Investments

          (12) (13)

          July 17, 2017

          Investment Partnership

          LP Interests (Copper Trail Energy Fund I, LP)

          12.4%

          2,161

          1,782

          (8) (31)

          Dos Rios Partners

          (12) (13)

          April 25, 2013

          Investment Partnership

          LP Interests (Dos Rios Partners, LP)

          20.2%

          6,605

          5,417

          (31)

          LP Interests (Dos Rios Partners - A, LP)

          6.4%

          2,097

          1,720

          (31)

          8,702

          7,137

          East Teak Fine Hardwoods, Inc.

          April 13, 2006

          Distributor of Hardwood Products

          Common Stock

          6,250

          480

          300

          EIG Fund Investments

          (12) (13)

          November 6, 2015

          Investment Partnership

          LP Interests (EIG Global Private Debt Fund-A, L.P.)

          11.1%

          739

          526

          (8) (31)

          Freeport Financial Funds

          (12) (13)

          June 13, 2013

          Investment Partnership

          LP Interests (Freeport Financial SBIC Fund LP)

          9.3%

          5,974

          5,264

          (31)

          LP Interests (Freeport First Lien Loan Fund III LP)

          6.0%

          10,785

          10,321

          (8) (31)

          16,759

          15,585

          Harris Preston Fund Investments

          (12) (13)

          August 9, 2017

          Investment Partnership

          LP Interests (HPEP 3, L.P.)

          8.2%

          3,071

          3,258

          (31)

          Hawk Ridge Systems, LLC

          (13)

          December 2, 2016

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

          Secured Debt

          11.00%

          12/2/2023

          18,400

          18,366

          18,400

          Preferred Member Units

          226

          2,850

          8,030

          (8)

          Preferred Member Units

          226

          150

          420

          (30)

          21,366

          26,850

          Houston Plating and Coatings, LLC

          January 8, 2003

          Provider of Plating and Industrial Coating Services

          Unsecured Convertible Debt

          8.00%

          5/1/2022

          3,000

          3,000

          2,900

          Member Units

          322,297

          2,352

          5,080

          (8)

          5,352

          7,980

          I-45 SLF LLC

          (12) (13)

          October 20, 2015

          Investment Partnership

          Member Units (Fully diluted 20.0%; 24.40% profits
          interest) (8)

          20.00% Fully Diluted, 24.40% Profits Interest

          20,200

          15,789

          (8) (31)

          93


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          L.F. Manufacturing Holdings, LLC

          (10)

          December 23, 2013

          Manufacturer of Fiberglass Products

          Preferred Member Units (non-voting)

          14.00% PIK

          93

          93

          (8) (19)

          Member Units

          2,179,001

          2,019

          2,050

          2,112

          2,143

          OnAsset Intelligence, Inc.

          April 18, 2011

          Provider of Transportation Monitoring / Tracking Products and Services

          Secured Debt

          12.00% PIK

          6/30/2021

          7,301

          7,301

          7,301

          (19)

          Unsecured Debt

          10.00% PIK

          6/30/2021

          64

          64

          64

          (19)

          Preferred Stock

          912

          1,981

          -

          Warrants

          5,333

          4/18/2021

          1,919

          -

          (27)

          11,265

          7,365

          PCI Holding Company, Inc.

          December 18, 2012

          Manufacturer of Industrial Gas Generating Systems

          Preferred Stock

          1,500,000

          3,927

          4,130

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

          January 8, 2013

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Secured Debt

          12.00%

          1/8/2018

          30,369

          29,865

          -

          (14) (32)

          Preferred Member Units

          250

          2,500

          -

          32,365

          -

          Salado Stone Holdings, LLC

          (10)

          June 27, 2016

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

          Class A Preferred Units

          2,000,000

          2,000

          1,250

          (30)

          Slick Innovations, LLC

          September 13, 2018

          Text Message Marketing Platform

          Secured Debt

          13.00%

          9/13/2023

          5,720

          5,605

          5,719

          Common Stock

          70,000

          700

          1,330

          Warrants

          18,084

          9/13/2028

          181

          360

          (27)

          6,486

          7,409

          SI East, LLC

          August 31, 2018

          Rigid Industrial Packaging Manufacturing

          Secured Debt

          9.50%

          8/31/2023

          32,963

          32,760

          32,962

          Preferred Member Units

          157

          6,000

          9,780

          (8)

          38,760

          42,742

          Superior Rigging & Erecting Co.

          August 31, 2020

          Provider of Steel Erecting, Crane Rental & Rigging Services

          Secured Debt

          12.00%

          8/31/2025

          21,500

          21,298

          21,298

          Preferred Member Units

          1,473

          4,500

          4,500

          25,798

          25,798

          UniTek Global Services, Inc.

          (11)

          April 15, 2011

          Provider of Outsourced Infrastructure Services

          Secured Debt

          7.50% (L+6.50% Floor 1.00%)

          8/20/2024

          2,708

          2,687

          2,426

          (9)

          Preferred Stock

          1,133,102

          20.00% PIK

          1,441

          2,832

          (8) (19)

          Preferred Stock

          1,521,122

          20.00% PIK

          2,188

          375

          (8) (19)

          Preferred Stock

          2,281,682

          19.00% PIK

          3,667

          -

          (19)

          Preferred Stock

          4,336,866

          13.50% PIK

          7,924

          -

          (19)

          Common Stock

          945,507

          -

          -

          17,907

          5,633

          94


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Universal Wellhead Services Holdings, LLC

          (10)

          October 30, 2014

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

          Preferred Member Units

          716,949

          14.00% PIK

          1,032

          -

          (19) (30)

          Member Units

          4,000,000

          4,000

          -

          (30)

          5,032

          -

          Volusion, LLC

          January 26, 2015

          Provider of Online Software-as-a-Service eCommerce Solutions

          Secured Debt

          11.50%

          1/26/2020

          20,234

          20,234

          19,242

          (17)

          Unsecured Convertible Debt

          8.00%

          11/16/2023

          409

          409

          291

          Preferred Member Units

          4,876,670

          14,000

          5,990

          Warrants

          1,831,355

          1/26/2025

          2,576

          -

          (27)

          37,219

          25,523

          Subtotal Affiliate Investments (24.2% of net assets at fair value)

          $

          416,479

          $

          366,301

          95


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Non-Control/Non-Affiliate Investments (7)

          Acousti Engineering Company of Florida, Inc.

          (10)

          November 2, 2020

          Interior Subcontractor Providing Acoustical Walls and Ceilings

          Secured Debt

          10.00% (L+8.50%, Floor 1.50%)

          10/31/2025

          13,000

          12,858

          12,858

          (9)

          Adams Publishing Group, LLC

          (10)

          November 19, 2015

          Local Newspaper Operator

          Secured Debt

          8.75% (L+7.00%, Floor 1.75%)

          7/3/2023

          5,863

          5,745

          5,813

          (9)

          ADS Tactical, Inc.

          (10)

          March 7, 2017

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

          Secured Debt

          7.00% (L+6.25%, Floor 0.75%)

          7/26/2023

          19,633

          19,529

          19,633

          (9)

          Aethon United BR LP

          (10)

          September 8, 2017

          Oil & Gas Exploration & Production

          Secured Debt

          7.75% (L+6.75%, Floor 1.00%)

          9/8/2023

          9,750

          9,659

          9,544

          (9)

          Affordable Care Holding Corp.

          (10)

          May 9, 2019

          Dental Support Organization

          Secured Debt

          5.75% (L+4.75%, Floor 1.00%)

          10/22/2022

          14,246

          14,066

          14,044

          (9)

          ALKU, LLC.

          (11)

          October 18, 2019

          Specialty National Staffing Operator

          Secured Debt

          5.75% (L+5.50%)

          7/29/2026

          9,466

          9,385

          9,478

          American Nuts, LLC

          (10)

          April 10, 2018

          Roaster, Mixer and Packager of Bulk Nuts and Seeds

          Secured Debt

          9.00% (L+8.00%, Floor 1.00%)

          4/10/2023

          12,130

          11,954

          12,111

          (9)

          American Teleconferencing Services, Ltd.

          (11)

          May 19, 2016

          Provider of Audio Conferencing and Video Collaboration Solutions

          Secured Debt

          7.50% (L+6.50%, Floor 1.00%)

          6/8/2023

          17,358

          16,634

          8,071

          (9)

          APTIM Corp.

          (11)

          August 17, 2018

          Engineering, Construction & Procurement

          Secured Debt

          7.75%

          6/15/2025

          12,452

          11,063

          9,734

          Arcus Hunting LLC

          (10)

          January 6, 2015

          Manufacturer of Bowhunting and Archery Products and Accessories

          Secured Debt

          11.00% (L+10.00%, Floor 1.00%)

          3/31/2021

          11,009

          11,009

          11,009

          (9)

          Arrow International, Inc

          (10)

          December 21, 2020

          Manufacturer and Distributor of Charitable Gaming Supplies

          Secured Debt

          9.23% (L+7.98%, Floor 1.25%)

          12/21/2025

          10,000

          9,901

          9,901

          (9) (23)

          ASC Ortho Management Company, LLC

          (10)

          August 31, 2018

          Provider of Orthopedic Services

          Secured Debt

          8.50% (L+7.50%, Floor 1.00%)

          8/31/2023

          5,206

          5,148

          5,149

          (9)

          Secured Debt

          13.25% PIK

          12/1/2023

          2,116

          2,091

          2,116

          (19)

          7,239

          7,265

          96


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          ATX Networks Corp.

          (11) (13) (21)

          June 30, 2015

          Provider of Radio Frequency Management Equipment

          Secured Debt

          8.75% (7.25% Cash, 1.50% PIK) (1.50% PIK + L+6.25%, Floor 1.00%)

          12/31/2023

          13,402

          13,342

          12,263

          (9) (19)

          Berry Aviation, Inc.

          (10)

          July 6, 2018

          Charter Airline Services

          Secured Debt

          12.00% (10.50% Cash, 1.5% PIK)

          1/6/2024

          4,624

          4,595

          4,624

          (19)

          Preferred Member Units

          122,416

          16.00% PIK

          145

          145

          (8) (19) (30)

          Preferred Member Units

          1,548,387

          8.00% PIK

          1,671

          904

          (19) (30)

          6,411

          5,673

          BigName Commerce, LLC

          (10)

          May 11, 2017

          Provider of Envelopes and Complimentary Stationery Products

          Secured Debt

          8.25% (L+7.25%, Floor 1.00%)

          5/11/2022

          2,044

          2,037

          2,011

          (9)

          Binswanger Enterprises, LLC

          (10)

          March 10, 2017

          Glass Repair and Installation Service Provider

          Secured Debt

          9.50% (L+8.50%, Floor 1.00%)

          3/9/2022

          12,958

          12,798

          12,958

          (9)

          Member Units

          1,050,000

          1,050

          670

          13,848

          13,628

          BLST Operating Company, LLC.

          (11)

          December 19, 2013

          Multi-Channel Retailer of General Merchandise

          Secured Debt

          10.00% (L+8.50%, Floor 1.50%)

          8/28/2025

          5,879

          5,879

          5,879

          (9)

          Common Stock

          653

          -

          -

          Warrants

          70

          8/28/2030

          -

          -

          (27)

          5,879

          5,879

          Brainworks Software, LLC

          (10)

          August 12, 2014

          Advertising Sales and Newspaper Circulation Software

          Secured Debt

          12.50% (Prime+9.25%, Floor 3.25%)

          7/22/2019

          7,817

          7,817

          5,332

          (9) (14) (17)

          Brightwood Capital Fund Investments

          (12) (13)

          July 21, 2014

          Investment Partnership

          LP Interests (Brightwood Capital Fund III, LP)

          1.6%

          10,800

          8,459

          (8) (31)

          LP Interests (Brightwood Capital Fund IV, LP)

          0.6%

          5,000

          4,745

          (8) (31)

          15,800

          13,204

          Cadence Aerospace LLC

          (10)

          November 14, 2017

          Aerostructure Manufacturing

          Secured Debt

          9.50% (4.25% Cash, 5.25% PIK) (5.25% PIK + L+3.25%, Floor 1.00%)

          11/14/2023

          27,703

          27,484

          26,359

          (9) (19)

          97


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          California Pizza Kitchen, Inc.

          (11)

          August 29, 2016

          Casual Restaurant Group

          Secured Debt

          11.50% (L+10.00%, Floor 1.50%)

          11/23/2024

          7,700

          7,288

          7,315

          (9)

          Secured Debt

          13.50% (1.00% Cash, 12.50% PIK) (1.00% Cash, L+11.00% PIK, Floor 1.50%)

          11/23/2024

          2,657

          2,590

          2,524

          (9) (19)

          Secured Debt

          15.00% (1.00% Cash, 14.00% PIK) (1.00% Cash + L+12.50% PIK, Floor 1.50%)

          5/23/2025

          2,291

          2,291

          1,833

          (9) (19)

          Common Stock

          169,088

          949

          1,860

          13,118

          13,532

          Central Security Group, Inc.

          (11)

          December 4, 2017

          Security Alarm Monitoring Service Provider

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          10/16/2025

          6,891

          6,891

          5,823

          (9)

          Common Stock

          329,084

          1,481

          1,645

          8,372

          7,468

          Cenveo Corporation

          (11)

          September 4, 2015

          Provider of Digital Marketing Agency Services

          Secured Debt

          10.50% (L+9.50%, Floor 1.00%)

          6/7/2023

          5,250

          5,129

          4,909

          (9)

          Common Stock

          177,130

          5,309

          2,613

          10,438

          7,522

          Chisholm Energy Holdings, LLC

          (10)

          May 15, 2019

          Oil & Gas Exploration & Production

          Secured Debt

          7.75% (L+6.25%, Floor 1.50%)

          5/15/2026

          3,571

          3,498

          3,274

          (9)

          Clarius BIGS, LLC

          (10)

          September 23, 2014

          Prints & Advertising Film Financing

          Secured Debt

          15.00% PIK

          1/5/2015

          2,832

          2,832

          31

          (14) (17) (19)

          Clickbooth.com, LLC

          (10)

          December 5, 2017

          Provider of Digital Advertising Performance Marketing Solutions

          Secured Debt

          9.50% (L+8.50%, Floor 1.00%)

          1/31/2025

          7,850

          7,750

          7,850

          (9)

          Construction Supply Investments, LLC

          (10)

          December 29, 2016

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

          Member Units

          5,637

          8,617

          Copper Trail Fund Investments

          (12) (13)

          July 17, 2017

          Investment Partnership

          LP Interests (CTEF I, LP)

          375

          -

          67

          Corel Corporation

          (11) (13) (21)

          July 24, 2019

          Publisher of Desktop and Cloud-based Software

          Secured Debt

          5.23% (L+5.00%)

          7/2/2026

          19,403

          18,580

          19,124

          Darr Equipment LP

          (10)

          April 15, 2014

          Heavy Equipment Dealer

          Secured Debt

          12.50% (11.50% Cash, 1.00% PIK)

          6/22/2023

          5,959

          5,959

          5,959

          (19)

          Warrants

          915,734

          12/23/2023

          474

          -

          (29)

          6,433

          5,959

          98


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Digital River, Inc.

          (11)

          February 24, 2015

          Provider of Outsourced e-Commerce Solutions and Services

          Secured Debt

          8.00% (L+7.00%, Floor 1.00%)

          2/12/2023

          13,628

          13,422

          13,560

          (9)

          DTE Enterprises, LLC

          (10)

          April 13, 2018

          Industrial Powertrain Repair and Services

          Secured Debt

          10.00% (L+8.50%, Floor 1.50%)

          4/13/2023

          9,324

          9,213

          9,004

          (9)

          Class AA Preferred Member Units (non-voting)

          10.00% PIK

          951

          951

          (8) (19)

          Class A Preferred Member Units

          776,316

          776

          880

          10,940

          10,835

          Dynamic Communities, LLC

          (10)

          July 17, 2018

          Developer of Business Events and Online Community Groups

          Secured Debt

          12.50% (6.25% Cash, 6.25% PIK) (L+11.50%, Floor 1.00%)

          7/17/2023

          5,320

          5,256

          4,921

          (9) (19)

          Eastern Wholesale Fence LLC

          (10)

          November 19, 2020

          Manufacturer and Distributor of Residential and Commercial Fencing Solutions

          Secured Debt

          7.50%, (L+6.50%, Floor 1.00%)

          10/30/2025

          11,857

          11,523

          11,523

          (9)

          Echo US Holdings, LLC.

          (10)

          November 12, 2019

          Developer and Manufacturer of PVC and Polypropylene Materials

          Secured Debt

          7.88% (L+6.25%, Floor 1.63%)

          10/25/2024

          22,190

          22,090

          22,190

          (9)

          Electronic Transaction Consultants, LLC

          (10)

          July 24, 2020

          Technology Service Provider for Toll Road and Infrastructure Operators

          Secured Debt

          8.50% (L+7.50%, Floor 1.00%)

          7/24/2025

          10,000

          9,829

          9,829

          (9)

          EnCap Energy Fund Investments

          (12) (13)

          December 28, 2010

          Investment Partnership

          LP Interests (EnCap Energy Capital Fund VIII, L.P.)

          0.1%

          3,813

          959

          (31)

          LP Interests (EnCap Energy Capital Fund VIII Co-
          Investors, L.P.)

          0.4%

          2,097

          465

          (31)

          LP Interests (EnCap Energy Capital Fund IX, L.P.)

          0.1%

          4,366

          1,291

          (8) (31)

          LP Interests (EnCap Energy Capital Fund X, L.P.)

          0.1%

          8,720

          6,426

          (8) (31)

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.)

          0.8%

          6,706

          2,546

          (8) (31)

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.)

          0.2%

          6,982

          5,793

          (8) (31)

          32,684

          17,480

          Encino Acquisition Partners Holdings, Inc.

          (11)

          November 16, 2018

          Oil & Gas Exploration & Production

          Secured Debt

          7.75% (L+6.75%, Floor 1.00%)

          10/29/2025

          9,000

          8,932

          8,297

          (9)

          99


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          EPIC Y-Grade Services, LP

          (11)

          June 22, 2018

          NGL Transportation & Storage

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          6/30/2027

          6,944

          6,854

          5,799

          (9)

          Fortna, Inc.

          (10)

          July 23, 2019

          Process, Physical Distribution and Logistics Consulting Services

          Secured Debt

          5.15% (L+5.00%)

          4/8/2025

          7,673

          7,553

          7,486

          Fuse, LLC

          (11)

          June 30, 2019

          Cable Networks Operator

          Secured Debt

          12.00%

          6/28/2024

          1,810

          1,810

          1,472

          Common Stock

          10,429

          256

          -

          2,066

          1,472

          GeoStabilization International (GSI)

          (11)

          December 31, 2018

          Geohazard Engineering Services & Maintenance

          Secured Debt

          5.40% (L+5.25%)

          12/19/2025

          11,224

          11,137

          11,196

          GoWireless Holdings, Inc.

          (11)

          December 31, 2017

          Provider of Wireless Telecommunications Carrier Services

          Secured Debt

          7.50% (L+6.50%, Floor 1.00%)

          12/22/2024

          17,113

          16,988

          16,976

          (9)

          Grupo Hima San Pablo, Inc.

          (11)

          March 7, 2013

          Tertiary Care Hospitals

          Secured Debt

          9.25% (L+7.00%, Floor 1.50%)

          4/30/2019

          4,504

          4,504

          3,375

          (9) (17)

          Secured Debt

          13.75%

          10/15/2018

          2,055

          2,040

          49

          (17)

          6,544

          3,424

          GS HVAM Intermediate, LLC

          (10)

          October 18, 2019

          Specialized Food Distributor

          Secured Debt

          6.75% (L+5.75%, Floor 1.00%)

          10/2/2024

          11,053

          10,952

          11,007

          (9)

          Gexpro Services

          (10)

          February 24, 2020

          Distributor of Industrial and Specialty Parts

          Secured Debt

          8.00% (L+6.50%, Floor 1.50%)

          2/24/2025

          29,180

          28,692

          28,953

          (9)

          HDC/HW Intermediate Holdings

          (10)

          December 21, 2018

          Managed Services and Hosting Provider

          Secured Debt

          8.50% (L+7.50%, Floor 1.00%)

          12/21/2023

          3,474

          3,429

          3,351

          (9)

          Heartland Dental, LLC

          (10)

          September 9, 2020

          Dental Support Organization

          Secured Debt

          7.50% (L+6.50%, Floor 1.00%)

          4/30/2025

          14,925

          14,501

          14,501

          (9)

          Hunter Defense Technologies, Inc.

          (10)

          March 29, 2018

          Provider of Military and Commercial Shelters and Systems

          Secured Debt

          8.00% (L+7.00%, Floor 1.00%)

          3/29/2023

          35,246

          34,820

          35,246

          (9)

          HW Temps LLC

          July 2, 2015

          Temporary Staffing Solutions

          Secured Debt

          12.00%

          3/29/2023

          9,801

          9,698

          8,994

          Hyperion Materials & Technologies, Inc.

          (11) (13)

          September 12, 2019

          Manufacturer of Cutting and Machine Tools & Specialty Polishing Compounds

          Secured Debt

          6.50% (L+5.50%, Floor 1.00%)

          8/28/2026

          22,275

          21,894

          20,813

          (9)

          100


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Ian, Evan & Alexander Corporation (EverWatch)

          (10)

          July 31, 2020

          Cybersecurity, Software and Data Analytics provider to the Intelligence Community

          Secured Debt

          9.50% (L+8.50%, Floor 1.00%)

          7/31/2025

          16,529

          16,158

          16,158

          (9)

          Implus Footcare, LLC

          (10)

          June 1, 2017

          Provider of Footwear and Related Accessories

          Secured Debt

          8.75% (L+7.75%, Floor 1.00%)

          4/30/2024

          18,890

          18,566

          17,172

          (9)

          Independent Pet Partners Intermediate Holdings, LLC

          (10)

          November 20, 2018

          Omnichannel Retailer of Specialty Pet Products

          Secured Debt

          6.31% PIK (L+6.00% PIK)

          12/22/2022

          6,111

          6,111

          6,111

          (19)

          Secured Debt

          6.00% PIK

          11/20/2023

          16,670

          15,086

          15,086

          (19)

          Preferred Stock (non-voting)

          3,235

          3,235

          Preferred Stock (non-voting)

          -

          -

          Member Units

          1,558,333

          1,558

          -

          25,990

          24,432

          Industrial Services Acquisition, LLC

          (10)

          June 17, 2016

          Industrial Cleaning Services

          Unsecured Debt

          13.00% (6.00% Cash, 7.00% PIK)

          12/17/2022

          5,624

          5,579

          5,624

          (19)

          Preferred Member Units

          144

          10.00% PIK

          112

          112

          (8) (19) (30)

          Preferred Member Units

          80

          20.00% PIK

          71

          71

          (8) (19) (30)

          Member Units

          900

          900

          530

          (30)

          6,662

          6,337

          Inn of the Mountain Gods Resort and Casino

          (11)

          October 30, 2013

          Hotel & Casino Owner & Operator

          Secured Debt

          9.25%

          11/30/2023

          6,677

          6,677

          6,677

          Interface Security Systems, L.L.C

          (10)

          August 7, 2019

          Commercial Security & Alarm Services

          Secured Debt

          11.75% (8.75% Cash, 3.00% PIK) (3.00% PIK + L+7.00%, Floor 1.75%)

          8/7/2023

          7,245

          7,145

          7,245

          (9) (19)

          Intermedia Holdings, Inc.

          (11)

          August 3, 2018

          Unified Communications as a Service

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          7/19/2025

          20,839

          20,755

          20,823

          (9)

          Invincible Boat Company, LLC.

          (10)

          August 28, 2019

          Manufacturer of Sport Fishing Boats

          Secured Debt

          8.00% (L+6.50%, Floor 1.50%)

          8/28/2025

          8,876

          8,793

          8,876

          (9)

          Isagenix International, LLC

          (11)

          June 21, 2018

          Direct Marketer of Health & Wellness Products

          Secured Debt

          6.75% (L+5.75%, Floor 1.00%)

          6/14/2025

          5,572

          5,541

          3,130

          (9)

          Jackmont Hospitality, Inc.

          (10)

          May 26, 2015

          Franchisee of Casual Dining Restaurants

          Secured Debt

          7.75% (L+6.75%, Floor 1.00%)

          5/26/2021

          3,954

          3,953

          3,157

          (9)

          101


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Joerns Healthcare, LLC

          (11)

          April 3, 2013

          Manufacturer and Distributor of Health Care Equipment & Supplies

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          8/21/2024

          4,016

          3,955

          4,016

          (9)

          Common Stock

          472,579

          4,429

          2,795

          8,384

          6,811

          Kemp Technologies Inc.

          (10)

          June 27, 2019

          Provider of Application Delivery Controllers

          Secured Debt

          7.50% (L+6.50%, Floor 1.00%)

          3/29/2024

          17,387

          17,088

          17,387

          (9)

          Common Stock

          1,000,000

          1,550

          1,550

          18,638

          18,937

          Klein Hersh, LLC

          (10)

          November 13, 2020

          Executive and C-Suite Placement for the Life Sciences and Healthcare Industries

          Secured Debt

          8.75% (L+8.00%, Floor 0.75%)

          11/13/2025

          35,000

          34,098

          34,098

          (9)

          Kore Wireless Group Inc.

          (11)

          December 31, 2018

          Mission Critical Software Platform

          Secured Debt

          5.75% (L+5.50%)

          12/20/2024

          19,090

          19,003

          18,828

          Larchmont Resources, LLC

          (11)

          August 13, 2013

          Oil & Gas Exploration & Production

          Secured Debt

          11.00% PIK (L+10.00% PIK, Floor 1.00%)

          8/9/2021

          2,185

          2,185

          983

          (9) (19)

          Member Units

          2,828

          353

          113

          (30)

          2,538

          1,096

          Laredo Energy VI, LP

          (10)

          January 15, 2019

          Oil & Gas Exploration & Production

          Member Units

          1,155,952

          11,560

          10,238

          Lightbox Holdings, L.P.

          (11)

          May 23, 2019

          Provider of Commercial Real Estate Software

          Secured Debt

          5.15% (L+5.00%)

          5/9/2026

          14,813

          14,623

          14,368

          LKCM Headwater Investments I, L.P.

          (12) (13)

          January 25, 2013

          Investment Partnership

          LP Interests

          2.3%

          1,746

          3,524

          (31)

          LL Management, Inc.

          (10)

          May 2, 2019

          Medical Transportation Service Provider

          Secured Debt

          8.25% (L+7.25%, Floor 1.00%)

          9/25/2023

          16,504

          16,337

          16,504

          (9)

          Logix Acquisition Company, LLC

          (10)

          June 24, 2016

          Competitive Local Exchange Carrier

          Secured Debt

          6.75% (L+5.75%, Floor 1.00%)

          12/22/2024

          26,131

          24,550

          24,171

          (9)

          Looking Glass Investments, LLC

          (12) (13)

          July 1, 2015

          Specialty Consumer
          Finance

          Member Units

          3

          125

          25

          LSF9 Atlantis Holdings, LLC

          (11)

          May 17, 2017

          Provider of Wireless Telecommunications Carrier Services

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          5/1/2023

          9,206

          9,206

          9,177

          (9)

          102


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Lulu's Fashion Lounge, LLC

          (10)

          August 31, 2017

          Fast Fashion E-Commerce Retailer

          Secured Debt

          10.50% (8.00% Cash, 2.50% PIK) (2.50% PIK + L+7.00%, Floor 1.00%)

          8/28/2022

          11,152

          10,983

          9,535

          (9) (19)

          Lynx FBO Operating LLC

          (10)

          September 30, 2019

          Fixed Based Operator in the General Aviation Industry

          Secured Debt

          7.25% (L+5.75%, Floor 1.50%)

          9/30/2024

          13,613

          13,369

          13,521

          (9)

          Member Units

          4,872

          687

          780

          14,056

          14,301

          Mac Lean-Fogg Company

          (10)

          April 22, 2019

          Manufacturer and Supplier for Auto and Power Markets

          Secured Debt

          5.63% (L+5.00%, Floor 0.625%)

          12/22/2025

          17,251

          17,149

          17,251

          (9)

          Preferred Stock

          13.75% (4.50% Cash, 9.25% PIK)

          1,870

          1,870

          1,841

          (8) (19)

          19,019

          19,092

          MHVC Acquisition Corp.

          (11)

          May 8, 2017

          Provider of Differentiated Information Solutions, Systems Engineering, and Analytics

          Secured Debt

          6.25% (L+5.25%, Floor 1.00%)

          4/29/2024

          19,797

          19,716

          19,846

          (9)

          Mills Fleet Farm Group, LLC

          (10)

          October 24, 2018

          Omnichannel Retailer of Work, Farm and Lifestyle Merchandise

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          10/24/2024

          13,860

          13,595

          13,609

          (9)

          NBG Acquisition Inc

          (11)

          April 28, 2017

          Wholesaler of Home Décor Products

          Secured Debt

          6.50% (L+5.50%, Floor 1.00%)

          4/26/2024

          4,070

          4,034

          3,399

          (9)

          NinjaTrader, LLC

          (10)

          December 18, 2019

          Operator of Futures Trading Platform

          Secured Debt

          8.25% (L+6.75%, Floor 1.50%)

          12/18/2024

          16,875

          16,543

          16,849

          (9)

          NNE Partners, LLC

          (10)

          March 2, 2017

          Oil & Gas Exploration & Production

          Secured Debt

          9.48% (4.75% Cash, 4.50% PIK) (4.50% PIK + L+4.75%)

          12/31/2023

          23,683

          23,572

          21,025

          (19)

          Project Eagle Holdings, LLC

          (10)

          July 6, 2020

          Provider of Secure Business Collaboration Software

          Secured Debt

          9.25% (L+8.25%, Floor 1.00%)

          7/6/2026

          14,963

          14,583

          14,583

          (9)

          Novetta Solutions, LLC

          (11)

          June 21, 2017

          Provider of Advanced Analytics Solutions for Defense Agencies

          Secured Debt

          6.00% (L+5.00%, Floor 1.00%)

          10/17/2022

          22,912

          22,629

          22,864

          (9)

          103


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          NTM Acquisition Corp.

          (11)

          July 12, 2016

          Provider of B2B Travel Information Content

          Secured Debt

          8.25% (7.25% Cash, 1.00% PIK) (1.00%PIK + L+6.25%, Floor 1.00%)

          6/7/2024

          4,694

          4,694

          4,224

          (9) (19)

          Ospemifene Royalty Sub LLC (QuatRx)

          (10)

          July 8, 2013

          Estrogen-Deficiency Drug Manufacturer and Distributor

          Secured Debt

          11.50%

          11/15/2026

          4,765

          4,765

          121

          (14)

          PaySimple, Inc.

          (10)

          September 9, 2019

          Leading Technology Services Commerce Platform

          Secured Debt

          5.65% (L+5.50%)

          8/23/2025

          24,448

          24,225

          23,959

          PricewaterhouseCoopers Public Sector LLP

          (11)

          May 24, 2018

          Provider of Consulting Services to Governments

          Secured Debt

          8.15% (L+8.00%)

          5/1/2026

          9,000

          8,969

          9,000

          PT Network, LLC

          (10)

          November 1, 2013

          Provider of Outpatient Physical Therapy and Sports Medicine Services

          Secured Debt

          8.73% (6.73% Cash, 2.00% PIK) (2.00% PIK + L+5.50%, Floor 1.00%)

          11/30/2023

          8,601

          8,601

          8,601

          (9) (19)

          Research Now Group, Inc. and Survey Sampling International, LLC

          (11)

          December 31, 2017

          Provider of Outsourced Online Surveying

          Secured Debt

          6.50% (L+5.50%, Floor 1.00%)

          12/20/2024

          17,930

          17,497

          17,715

          (9)

          RM Bidder, LLC

          (10)

          November 12, 2015

          Scripted and Unscripted TV and Digital Programming Provider

          Warrants

          187,161

          10/20/2025

          425

          -

          (26)

          Member Units

          2,779

          46

          26

          471

          26

          RTIC Subsidiary Holdings, LLC

          (10)

          September 1, 2020

          Direct-To-Consumer eCommerce Provider of Outdoor Products

          Secured Debt

          9.00% (L+7.75%, Floor 1.25%)

          9/1/2025

          17,260

          17,026

          17,026

          (9)

          SAFETY Investment Holdings, LLC

          April 29, 2016

          Provider of Intelligent Driver Record Monitoring Software and Services

          Member Units

          2,000,000

          2,000

          2,350

          Salient Partners L.P.

          (11)

          June 25, 2015

          Provider of Asset Management Services

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          8/31/2021

          6,450

          6,443

          4,542

          (9)

          Staples Canada ULC

          (10) (13) (21)

          September 14, 2017

          Office Supplies Retailer

          Secured Debt

          8.00% (L+7.00%, Floor 1.00%)

          9/12/2024

          13,032

          12,896

          12,382

          (9) (22)

          TEAM Public Choices, LLC

          (10)

          October 28, 2019

          Home-Based Care Employment Service Provider

          Secured Debt

          6.00% (L+5.00%, Floor 1.00%)

          12/18/2027

          12,500

          12,126

          12,406

          (9)

          104


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Tectonic Financial, Inc.

          May 15, 2017

          Financial Services Organization

          Common Stock

          200,000

          2,000

          2,800

          TGP Holdings III LLC

          (11)

          September 30, 2017

          Outdoor Cooking & Accessories

          Secured Debt

          9.50% (L+8.50%, Floor 1.00%)

          9/25/2025

          5,500

          5,448

          5,307

          (9)

          The Pasha Group

          (11)

          February 2, 2018

          Diversified Logistics and Transportation Provided

          Secured Debt

          9.00% (L+8.00%, Floor 1.00%)

          1/26/2023

          10,162

          9,585

          9,323

          (9)

          USA DeBusk LLC

          (10)

          October 22, 2019

          Provider of Industrial Cleaning Services

          Secured Debt

          6.75% (L+5.75%, Floor 1.00%)

          10/22/2024

          24,948

          24,561

          24,591

          (9)

          U.S. TelePacific Corp.

          (11)

          September 14, 2016

          Provider of Communications and Managed Services

          Secured Debt

          6.50% (L+5.50%, Floor 1.00%)

          5/2/2023

          17,088

          16,913

          15,486

          (9)

          Veregy Consolidated, Inc.

          (11)

          November 9, 2020

          Energy Service Company

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          11/3/2027

          15,000

          14,587

          14,888

          (9)

          Vida Capital, Inc

          (11)

          October 10, 2019

          Alternative Asset Manager

          Secured Debt

          6.15% (L+6.00%)

          10/1/2026

          17,853

          17,626

          17,272

          Vistar Media, Inc.

          (10)

          February 17, 2017

          Operator of Digital Out-of-Home Advertising Platform

          Secured Debt

          12.00% (8.50% Cash, 3.50% PIK) (3.50% PIK + L+7.50%, Floor 1.00%)

          4/3/2023

          4,636

          4,513

          4,636

          (9) (19)

          Preferred Stock

          70,207

          767

          910

          Warrants

          69,675

          4/3/2029

          -

          920

          (25)

          5,280

          6,466

          YS Garments, LLC

          (11)

          August 22, 2018

          Designer and Provider of Branded Activewear

          Secured Debt

          7.00% (L+6.00%, Floor 1.00%)

          8/9/2024

          13,997

          13,902

          12,911

          (9)

          Zilliant Incorporated

          June 15, 2012

          Price Optimization and Margin Management Solutions

          Preferred Stock

          186,777

          154

          260

          Warrants

          952,500

          6/15/2022

          1,071

          1,190

          (28)

          1,225

          1,450

          Subtotal Non-Control/Non-Affiliate Investments (79.5% of net assets at fair value)

          1,268,740

          1,204,840

          Total Portfolio Investments, December 31, 2020 (177.2% of net assets at fair value)

          $

          2,516,709

          $

          2,684,866

          105


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          (1)

          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Company’s Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)

          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)

          See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies.

          (4)

          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)

          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act"), as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)

          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.

          (7)

          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)

          Income producing through dividends or distributions.

          (9)

          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower’s option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2020. As noted in this schedule, 61% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.11%.

          (10)

          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

          (11)

          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)

          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)

          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)

          Non-accrual and non-income producing investment.

          (15)

          All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities.”

          (16)

          External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)

          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)

          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)

          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)

          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)

          Portfolio company headquarters are located outside of the United States.

          (22)

          In connection with the Company's debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $15.8 million Canadian Dollars and receive $12.0 million U.S. Dollars with a settlement date of September 14, 2021. The unrealized appreciation on the forward foreign currency contract is $0.4 million as of December 31, 2020.

          106


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          (23)

          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.25% (Floor 1.25%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)

          Investment date represents the date of initial investment in the portfolio company.

          (25)

          Warrants are presented in equivalent shares with a strike price of $10.92 per share.

          (26)

          Warrants are presented in equivalent units with a strike price of $14.28 per unit.

          (27)

          Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.

          (28)

          Warrants are presented in equivalent shares with a strike price of $0.001 per share.

          (29)

          Warrants are presented in equivalent units with a strike price of $1.50 per unit.

          (30)

          Shares/Units represent ownership in an underlying Real Estate or HoldCo entity.

          (31)

          Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.

          (32)

          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status.

          107


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          ��

          Control Investments(5)

            

            

            

            

            

            

          Access Media Holdings, LLC

          (10)

          7/22/2015

          Private Cable Operator

          Secured Debt

          10.00% PIK

          7/22/2020

          23,828

          23,828

          6,387

          (14) (19)

          Preferred Member Units

          9,481,500

          9,375

          (284)

          (27)

          Member Units

          45

          1

          -

          33,204

          6,103

          ASC Interests, LLC

          8/1/2013

          Recreational and
          Educational Shooting
          Facility

          Secured Debt

          11.00%

          7/31/2020

          1,650

          1,639

          1,639

          Member Units

          1,500

          1,500

          1,290

          3,139

          2,929

          Analytical Systems Keco, LLC

          8/16/2019

          Manufacturer of Liquid and
          Gas Analyzers

          Secured Debt

          12.13% (L+10.00%, Floor 2.00%)

          8/16/2024

          5,565

          5,210

          5,210

          (9)

          Preferred Member Units

          3,200

          3,200

          3,200

          Warrants

          420

          8/16/2029

          316

          316

          (29)

          8,726

          8,726

          ATS Workholding, LLC

          (10)

          3/10/2014

          Manufacturer of Machine
          Cutting Tools and
          Accessories

          Secured Debt

          5.00%

          11/16/2021

          4,919

          4,666

          4,521

          Preferred Member Units

          3,725,862

          3,726

          939

          8,392

          5,460

          Bond-Coat, Inc.

          12/28/2012

          Casing and Tubing
          Coating Services

          Secured Debt

          15.00%

          12/28/2020

          11,596

          11,473

          11,473

          Common Stock

          57,508

          6,350

          8,300

          17,823

          19,773

          Brewer Crane Holdings, LLC

          1/9/2018

          Provider of Crane Rental
          and Operating Services

          Secured Debt

          11.71% (L+10.00%, Floor 1.00%)

          1/9/2023

          9,052

          8,989

          8,989

          (9)

          Preferred Member Units

          2,950

          4,280

          4,280

          (8)

          13,269

          13,269

          Bridge Capital Solutions Corporation

          4/18/2012

          Financial Services
          and Cash Flow
          Solutions Provider

          Secured Debt

          13.00%

          12/11/2024

          8,813

          7,797

          7,797

          Warrants

          82

          7/25/2026

          2,132

          3,500

          (29)

          Secured Debt

          13.00%

          12/11/2024

          1,000

          996

          996

          (34)

          Preferred Member Units

          17,742

          1,000

          1,000

          (8) (34)

          11,925

          13,293

          Café Brazil, LLC

          4/20/2004

          Casual Restaurant
          Group

          Member Units

          1,233

          1,742

          2,440

          (8)

          California Splendor Holdings LLC

          3/30/2018

          Processor of Frozen Fruits

          Secured Debt

          10.13% (L+8.00%, Floor 1.00%)

          3/30/2023

          7,229

          7,104

          7,104

          (9)

          Secured Debt

          12.13% (L+10.00%, Floor 1.00%)

          3/30/2023

          28,000

          27,801

          27,801

          (9)

          Preferred Member Units

          6,725

          7,163

          7,163

          (8)

          Preferred Member Units

          6,157

          10,775

          7,382

          (8)

          52,843

          49,450

          108


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          CBT Nuggets, LLC ("CBT")

          6/1/2006

          Produces and Sells IT
          Training Certification
          Videos

          Member Units

          416

          1,300

          50,850

          (8)

          Centre Technologies Holdings, LLC

          1/4/2019

          Provider of IT Hardware Services and Software Solutions

          Secured Debt

          10.75% (L+9.00%, Floor 2.00%)

          1/4/2024

          12,240

          12,136

          12,136

          (9)

          Preferred Member Units

          12,696

          5,840

          5,840

          17,976

          17,976

          Chamberlin Holding LLC

          2/26/2018

          Roofing and Waterproofing
          Specialty Contractor

          Secured Debt

          12.00% (L+10.00%, Floor 1.00%)

          2/26/2023

          17,773

          17,649

          17,773

          (9)

          Member Units

          4,347

          11,440

          24,040

          (8)

          Member Units

          1,047,146

          1,047

          1,450

          (8) (34)

          30,136

          43,263

          Charps, LLC

          2/3/2017

          Pipeline Maintenance
          and Construction

          Secured Debt

          15.00%

          6/5/2022

          2,000

          2,000

          2,000

          Preferred Member Units

          1,600

          400

          6,920

          (8)

          2,400

          8,920

          Clad-Rex Steel, LLC

          12/20/2016

          Specialty Manufacturer
          of Vinyl-Clad Metal

          Secured Debt

          10.71% (L+9.00%, Floor 1.00%)

          12/20/2021

          10,880

          10,830

          10,781

          (9)

          Member Units

          717

          7,280

          9,630

          (8)

          Secured Debt

          10.00%

          12/20/2036

          1,137

          1,126

          1,137

          (34)

          Member Units

          800

          210

          460

          (34)

          19,446

          22,008

          CMS Minerals Investments

          1/30/2015

          Oil & Gas
          Exploration
          & Production

          Member Units

          100

          2,386

          1,900

          (8) (34)

          CompareNetworks Topco, LLC

          1/29/2019

          Internet Publishing and Web Search Portals

          Secured Debt

          12.75% (L+11.00%, Floor 1.00%)

          1/29/2024

          8,364

          8,288

          8,288

          (9)

          Preferred Member Units

          1,975

          1,975

          3,010

          10,263

          11,298

          Copper Trail Fund Investments

          (12) (13)

          7/17/2017

          Investment Partnership

          LP Interests

          38.8%

          872

          872

          (35) (36)

          Datacom, LLC

          5/30/2014

          Technology and
          Telecommunications
          Provider

          Secured Debt

          8.00%

          5/31/2021

          1,800

          1,800

          1,615

          (14)

          Secured Debt

          10.50% PIK

          5/31/2021

          12,507

          12,475

          10,142

          (14) (19)

          Class A Preferred Member Units

          1,294

          -

          Class B Preferred Member Units

          6,453

          6,030

          -

          21,599

          11,757

          Digital Products Holdings LLC

          4/1/2018

          Designer and Distributor
          of Consumer Electronics

          Secured Debt

          11.75% (L+10.00%, Floor 1.00%)

          4/1/2023

          19,620

          19,478

          18,452

          (9)

          Preferred Member Units

          3,857

          9,501

          5,174

          (8)

          28,979

          23,626

          109


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Direct Marketing Solutions, Inc.

          2/13/2018

          Provider of Omni-Channel
          Direct Marketing Services

          Secured Debt

          12.75% (L+11.00%, Floor 1.00%)

          2/13/2023

          15,717

          15,597

          15,707

          (9)

          Preferred Stock

          8,400

          8,400

          20,200

          23,997

          35,907

          Gamber-Johnson Holdings, LLC ("GJH")

          6/24/2016

          Manufacturer of
          Ruggedized Computer
          Mounting Systems

          Secured Debt

          8.50% (L+6.50%, Floor 2.00%)

          6/24/2021

          19,022

          18,949

          19,022

          (9)

          Member Units

          8,619

          14,844

          53,410

          (8)

          33,793

          72,432

          Garreco, LLC

          7/15/2013

          Manufacturer and
          Supplier of Dental
          Products

          Secured Debt

          9.50% (L+8.00%, Floor 1.00%, Ceiling 1.50%)

          3/31/2020

          4,519

          4,515

          4,515

          (9)

          Member Units

          1,200

          1,200

          2,560

          5,715

          7,075

          GRT Rubber Technologies LLC ("GRT")

          12/19/2014

          Manufacturer of
          Engineered Rubber
          Products

          Secured Debt

          8.71% (L+7.00%)

          12/31/2023

          15,016

          15,016

          15,016

          Member Units

          5,879

          13,065

          47,450

          28,081

          62,466

          Guerdon Modular Holdings, Inc.

          8/13/2014

          Multi-Family and
          Commercial Modular
          Construction Company

          Secured Debt

          10.60% (L+8.50%, Floor 1.00%)

          10/1/2019

          1,010

          1,010

          -

          (9) (14) (17)

          Secured Debt

          16.00%

          10/1/2019

          12,588

          12,588

          -

          (14) (17)

          Preferred Stock

          404,998

          1,140

          -

          Common Stock

          212,033

          2,983

          -

          Warrants

          6,208,877

          4/25/2028

          -

          -

          (30)

          17,721

          -

          Gulf Manufacturing, LLC

          8/31/2007

          Manufacturer of
          Specialty Fabricated
          Industrial Piping
          Products

          Member Units

          438

          2,980

          7,430

          (8)

          Gulf Publishing Holdings, LLC

          4/29/2016

          Energy Industry Focused
          Media and Publishing

          Secured Debt

          11.21% (L+9.50%, Floor 1.00%)

          9/30/2020

          280

          280

          280

          (9)

          Secured Debt

          12.50%

          4/29/2021

          12,535

          12,493

          12,493

          Member Units

          3,681

          3,681

          2,420

          16,454

          15,193

          Harborside Holdings, LLC

          3/20/2017

          Real Estate Holding
          Company

          Member units

          100

          6,506

          9,560

          Harris Preston Fund Investments

          (12) (13)

          10/1/2017

          Investment Partnership

          LP Interests

          49.3%

          2,735

          3,157

          (35) (36)

          Harrison Hydra-Gen, Ltd.

          6/4/2010

          Manufacturer of
          Hydraulic Generators

          Common Stock

          107,456

          718

          7,970

          (8)

          110


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          IDX Broker, LLC

          11/15/2013

          Provider of Marketing
          and CRM Tools for
          the Real Estate
          Industry

          Secured Debt

          11.50%

          11/15/2020

          13,400

          13,358

          13,400

          Preferred Member Units

          5,607

          5,952

          15,040

          (8)

          19,310

          28,440

          Jensen Jewelers of Idaho, LLC

          11/14/2006

          Retail Jewelry Store

          Secured Debt

          11.50% (Prime+6.75%, Floor 2.00%)

          11/14/2023

          4,000

          3,960

          4,000

          (9)

          Member Units

          627

          811

          8,270

          (8)

          4,771

          12,270

          J&J Services, Inc.

          10/31/2019

          Provider of Dumpster and
          Portable Toilet Rental
          Services

          Secured Debt

          11.50%

          10/31/2024

          17,600

          17,430

          17,430

          Preferred Stock

          2,814

          7,160

          7,160

          24,590

          24,590

          KBK Industries, LLC

          1/23/2006

          Manufacturer of Specialty
          Oilfield and Industrial
          Products

          Member Units

          325

          783

          15,470

          (8)

          Kickhaefer Manufacturing Company, LLC

          10/31/2018

          Precision Metal Parts Manufacturing

          Secured Debt

          11.50%

          10/31/2023

          25,200

          24,982

          24,982

          Member Units

          581

          12,240

          12,240

          Secured Debt

          9.00%

          10/31/2048

          3,978

          3,939

          3,939

          Member Units

          800

          992

          1,160

          (8) (34)

          42,153

          42,321

          Market Force Information, LLC

          7/28/2017

          Provider of Customer
          Experience Management
          Services

          Secured Debt

          8.00%

          7/28/2022

          2,786

          2,786

          2,695

          Secured Debt

          12.00% (6.00% Current, 6.00% PIK)

          7/28/2022

          23,292

          23,157

          22,621

          (19)

          Member Units

          743,921

          16,642

          5,280

          42,585

          30,596

          MH Corbin Holding LLC

          8/31/2015

          Manufacturer and
          Distributor of Traffic
          Safety Products

          Secured Debt

          10.00% (5.00% Current, 5.00% PIK)

          3/31/2022

          8,890

          8,815

          8,890

          (19)

          Preferred Member Units

          66,000

          4,400

          4,770

          Preferred Member Units

          4,000

          6,000

          20

          19,215

          13,680

          Mid-Columbia Lumber Products, LLC

          12/18/2006

          Manufacturer of
          Finger-Jointed
          Lumber Products

          Secured Debt

          10.00%

          1/15/2020

          1,750

          1,750

          1,602

          Secured Debt

          12.00%

          1/15/2020

          3,900

          3,898

          3,644

          Member Units

          7,874

          3,239

          -

          Secured Debt

          9.50%

          5/13/2025

          701

          701

          701

          (34)

          Member Units

          500

          790

          1,640

          (8) (34)

          10,378

          7,587

          MSC Adviser I, LLC

          (16)

          11/22/2013

          Third Party Investment
          Advisory Services

          Member Units

          1

          -

          74,520

          (8) (35)

          111


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Mystic Logistics Holdings, LLC

          8/18/2014

          Logistics and Distribution
          Services Provider for
          Large Volume Mailers

          Secured Debt (Maturity -

          12.00%

          8/15/2019

          6,253

          6,253

          6,253

          (17)

          Common Stock

          5,873

          2,720

          8,410

          (8)

          8,973

          14,663

          NAPCO Precast, LLC

          1/31/2008

          Precast Concrete
          Manufacturing

          Member Units

          2,955

          2,975

          14,760

          (8)

          NexRev LLC

          2/28/2018

          Provider of Energy
          Efficiency Products &
          Services

          Secured Debt

          11.00%

          2/28/2023

          17,586

          17,469

          17,469

          Preferred Member Units

          86,400,000

          6,880

          6,310

          (8)

          24,349

          23,779

          NRI Clinical Research, LLC

          9/8/2011

          Clinical Research
          Service Provider

          Secured Debt

          14.00%

          6/8/2022

          5,981

          5,885

          5,981

          Warrants

          251,723

          6/8/2027

          252

          1,230

          (29)

          Member Units

          1,454,167

          765

          4,988

          (8)

          6,902

          12,199

          NRP Jones, LLC

          12/22/2011

          Manufacturer of
          Hoses, Fittings and
          Assemblies

          Secured Debt

          12.00%

          3/20/2023

          6,376

          6,376

          6,376

          Member Units

          65,962

          3,717

          4,710

          (8)

          10,093

          11,086

          NuStep, LLC

          1/31/2017

          Designer, Manufacturer
          and Distributor of Fitness
          Equipment

          Secured Debt

          12.00%

          1/31/2022

          19,800

          19,703

          19,703

          Preferred Member Units

          406

          10,200

          10,200

          29,903

          29,903

          OMi Holdings, Inc.

          4/1/2008

          Manufacturer of
          Overhead Cranes

          Common Stock

          1,500

          1,080

          16,950

          (8)

          Pegasus Research Group, LLC

          1/6/2011

          Provider of
          Telemarketing
          and Data Services

          Member Units

          460

          1,290

          8,170

          PPL RVs, Inc.

          6/10/2010

          Recreational Vehicle
          Dealer

          Secured Debt

          10.85% (L+8.75%, Floor 0.50%)

          11/15/2022

          12,245

          12,118

          12,118

          (9)

          Common Stock

          1,962

          2,150

          9,930

          14,268

          22,048

          Principle Environmental, LLC
          (d/b/a TruHorizon
          Environmental Solutions)

          2/1/2011

          Noise Abatement
          Service Provider

          Secured Debt

          13.00%

          4/30/2020

          6,397

          6,379

          6,397

          Preferred Member Units

          19,631

          4,600

          13,390

          (8)

          Warrants

          1,018

          1/31/2021

          1,200

          1,090

          (29)

          12,179

          20,877

          Quality Lease Service, LLC

          6/8/2015

          Provider of Rigsite
          Accommodation Unit
          Rentals and Related
          Services

          Member Units

          1,000

          11,013

          9,289

          112


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          River Aggregates, LLC

          3/30/2011

          Processor of Construction
          Aggregates

          Zero Coupon Secured Debt

          6/30/2018

          750

          750

          722

          (17)

          Member Units

          1,150

          1,150

          4,990

          Member Units

          1,500

          369

          3,169

          (34)

          2,269

          8,881

          Tedder Industries, LLC

          8/31/2018

          Manufacturer of Firearm
          Holsters and Accessories

          Secured Debt

          12.00%

          8/31/2020

          640

          640

          640

          Secured Debt

          12.00%

          8/31/2023

          16,400

          16,272

          16,272

          Preferred Member Units

          479

          8,136

          8,136

          25,048

          25,048

          The MPI Group, LLC

          10/2/2007

          Manufacturer of
          Custom Hollow
          Metal Doors, Frames
          and Accessories

          Secured Debt

          9.00%

          12/31/2019

          2,924

          2,924

          2,924

          (17)

          Series A Preferred Units

          2,500

          2,500

          -

          Warrants

          1,424

          7/1/2024

          1,096

          -

          (29)

          Member Units

          100

          2,300

          1,640

          (8) (34)

          8,820

          4,564

          Trantech Radiator Topco, LLC

          5/31/2019

          Transformer Cooling
          Products and Services

          Secured Debt

          12.00%

          5/31/2024

          9,200

          9,102

          9,102

          Common Stock

          615

          4,655

          4,655

          (8)

          13,757

          13,757

          Vision Interests, Inc.

          6/5/2007

          Manufacturer / Installer
          of Commercial Signage

          Secured Debt

          13.00%

          9/30/2019

          2,028

          2,028

          2,028

          (17)

          Series A Preferred Stock

          3,000,000

          3,000

          4,089

          Common Stock

          1,126,242

          3,706

          409

          8,734

          6,526

          Ziegler's NYPD, LLC

          10/1/2008

          Casual Restaurant
          Group

          Secured Debt

          6.50%

          10/1/2020

          1,000

          1,000

          1,000

          Secured Debt

          12.00%

          10/1/2020

          625

          625

          625

          Secured Debt

          14.00%

          10/1/2020

          2,750

          2,750

          2,750

          Warrants

          587

          10/1/2020

          600

          -

          (29)

          Preferred Member Units

          10,072

          2,834

          1,269

          7,809

          5,644

          Subtotal Control Investments (67.2% of net assets at fair value)

          $

          778,367

          $

          1,032,721

          113


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Affiliate Investments (6)

          AFG Capital Group, LLC

          11/7/2014

          Provider of Rent-to-Own
          Financing Solutions and
          Services

          Secured Debt

          10.00%

          5/25/2022

          838

          838

          838

          Preferred Member Units

          186

          1,200

          5,180

          2,038

          6,018

          American Trailer Rental Group LLC

          6/7/2017

          Provider of Short-term
          Trailer and Container
          Rental

          Secured Debt

          9.34% (L+7.25%, Floor 1.00%)

          6/7/2022

          27,087

          26,905

          27,087

          (9)

          Member Units

          48,555

          4,855

          8,540

          (34)

          31,760

          35,627

          BBB Tank Services, LLC

          4/8/2016

          Maintenance, Repair and
          Construction Services to
          the Above-Ground
          Storage Tank Market

          Secured Debt

          12.71% (L+11.00%, Floor 1.00%)

          4/8/2021

          4,800

          4,698

          4,698

          (9)

          Preferred Stock (non-voting)

          131

          131

          (8)

          Member Units

          800,000

          800

          290

          5,629

          5,119

          Boccella Precast Products LLC

          6/30/2017

          Manufacturer of Precast
          Hollow Core Concrete

          Secured Debt

          14.10% (L+12.00%, Floor 1.00%)

          6/30/2022

          13,244

          13,106

          13,244

          (9)

          Member Units

          2,160,000

          2,256

          6,270

          (8)

          15,362

          19,514

          Buca C, LLC

          6/30/2015

          Casual Restaurant
          Group

          Secured Debt

          10.94% (L+9.25%, Floor 1.00%)

          6/30/2020

          19,004

          18,981

          18,794

          (9)

          Preferred Member Units

          6

          6.00% PIK

          4,701

          4,701

          (8) (19)

          23,682

          23,495

          CAI Software LLC

          10/10/2014

          Provider of Specialized
          Enterprise Resource
          Planning Software

          Secured Debt

          11.00%

          12/7/2023

          9,160

          9,077

          9,160

          Member Units

          66,968

          751

          5,210

          (8)

          9,828

          14,370

          Chandler Signs Holdings, LLC

          (10)

          1/4/2016

          Sign Manufacturer

          Class A Units

          1,500,000

          1,500

          2,740

          (8)

          Charlotte Russe, Inc

          (11)

          5/28/2013

          Fast-Fashion Retailer to
          Young Women

          Common Stock

          19,041

          3,141

          -

          Congruent Credit Opportunities
          Funds

          (12) (13)

          1/24/2012

          Investment Partnership

          LP Interests

          19.8%

          5,210

          855

          (35) (36)

          LP Interests

          17.4%

          13,601

          13,915

          (8) (35) (36)

          18,811

          14,770

          Copper Trail Fund Investments

          (12) (13)

          7/17/2017

          Investment Partnership

          LP Interests

          12.4%

          1,997

          2,362

          (8) (35) (36)

          Dos Rios Partners

          (12) (13)

          4/25/2013

          Investment Partnership

          LP Interests

          20.2%

          5,846

          7,033

          (35) (36)

          LP Interests

          6.4%

          1,856

          2,233

          (35) (36)

          7,702

          9,266

          114


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          East Teak Fine Hardwoods, Inc.

          4/13/2006

          Distributor of
          Hardwood Products

          Common Stock

          6,250

          480

          400

          (8)

          EIG Fund Investments

          (12) (13)

          11/6/2015

          Investment Partnership

          LP Interests

          11.1%

          768

          720

          (8) (35) (36)

          Freeport Financial Funds

          (12) (13)

          6/13/2013

          Investment Partnership

          LP Interests

          9.3%

          5,974

          5,778

          (35) (36)

          LP Interests

          6.0%

          9,956

          9,696

          (8) (35) (36)

          15,930

          15,474

          Fuse, LLC

          (11)

          6/30/2019

          Cable Networks Operator

          Secured Debt

          12.00%

          6/28/2024

          1,939

          1,939

          1,939

          Common Stock

          10,429

          256

          256

          2,195

          2,195

          Harris Preston Fund Investments

          (12) (13)

          8/9/2017

          Investment Partnership

          LP Interests

          8.2%

          2,474

          2,474

          (35) (36)

          Hawk Ridge Systems, LLC (13)

          12/2/2016

          Value-Added Reseller of
          Engineering Design and
          Manufacturing Solutions

          Secured Debt

          7.71% (L+6.00%, Floor 1.00%)

          12/2/2021

          600

          600

          600

          (9)

          Secured Debt

          11.00%

          12/2/2021

          13,400

          13,335

          13,400

          Preferred Member Units

          226

          2,850

          7,900

          (8)

          Preferred Member Units

          226

          150

          420

          (34)

          16,935

          22,320

          Houston Plating and Coatings, LLC

          1/8/2003

          Provider of Plating and
          Industrial Coating
          Services

          Unsecured Convertible Debt

          8.00%

          5/1/2022

          3,000

          3,000

          4,260

          Member Units

          322,297

          2,352

          10,330

          (8)

          5,352

          14,590

          I-45 SLF LLC

          (12) (13)

          10/20/2015

          Investment Partnership

          Member Units

          20.0% (24.4% profits interest)

          17,000

          14,407

          (8)

          L.F. Manufacturing Holdings,
          LLC

          (10)

          12/23/2013

          Manufacturer of
          Fiberglass Products

          Preferred Member Units (non-voting)

          14.00% PIK

          81

          81

          (8) (19)

          Member Units

          2,179,001

          2,019

          2,050

          2,100

          2,131

          OnAsset Intelligence, Inc.

          4/18/2011

          Provider of Transportation
          Monitoring / Tracking
          Products and Services

          Secured Debt

          12.00% PIK

          6/30/2021

          6,474

          6,474

          6,474

          (19)

          Unsecured Debt

          10.00% PIK

          6/30/2021

          58

          58

          58

          (19)

          Preferred Stock

          912

          1,981

          -

          Warrants

          5,333

          4/18/2021

          1,919

          -

          (29)

          10,432

          6,532

          PCI Holding Company, Inc.

          12/18/2012

          Manufacturer of Industrial
          Gas Generating Systems

          Secured Debt

          12.00%

          3/31/2020

          11,356

          11,356

          11,356

          Preferred Stock (non-voting)

          1,740,000

          1,740

          4,350

          Preferred Stock

          1,500,000

          3,927

          2,680

          17,023

          18,386

          115


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

          1/8/2013

          Provider of Rigsite
          Accommodation Unit
          Rentals and Related
          Services

          Secured Debt

          12.00%

          1/8/2018

          30,369

          29,865

          -

          (14) (15)

          Preferred Member Units

          250

          2,500

          -

          32,365

          -

          Salado Stone Holdings, LLC

          (10)

          6/27/2016

          Limestone and Sandstone
          Dimension Cut Stone
          Mining Quarries

          Class A Preferred Units

          2,000,000

          2,000

          570

          (34)

          SI East, LLC

          8/31/2018

          Rigid Industrial Packaging
          Manufacturing

          Secured Debt

          9.50%

          8/31/2023

          32,963

          32,687

          32,963

          Preferred Member Units

          157

          6,000

          8,200

          (8)

          38,687

          41,163

          Slick Innovations, Inc.

          9/13/2018

          Text Message Marketing
          Platform

          Secured Debt

          14.00%

          9/13/2023

          6,360

          6,197

          6,197

          Common Stock

          70,000

          700

          1,080

          (8)

          Warrants

          18,084

          9/13/2028

          181

          290

          (29)

          7,078

          7,567

          UniTek Global Services, Inc.

          (11)

          4/15/2011

          Provider of Outsourced
          Infrastructure Services

          Secured Debt

          8.41% (L+6.50%, Floor 1.00%)

          8/20/2024

          2,963

          2,940

          2,962

          (9)

          Preferred Stock

          755,401

          20.00% PIK

          809

          1,889

          (8) (19)

          Preferred Stock

          1,521,122

          19.00% PIK

          1,976

          2,282

          (8) (19)

          Preferred Stock

          2,281,682

          19.00% PIK

          3,667

          3,667

          (8) (19)

          Preferred Stock

          4,336,866

          13.50% PIK

          7,924

          2,684

          (8) (19)

          Common Stock

          945,507

          -

          -

          17,316

          13,484

          Universal Wellhead Services Holdings, LLC

          (10)

          10/30/2014

          Provider of Wellhead
          Equipment, Designs,
          and Personnel to the
          Oil & Gas Industry

          Preferred Member Units

          716,949

          14.00% PIK

          1,032

          800

          (8) (19) (34)

          Member Units

          4,000,000

          4,000

          -

          (34)

          5,032

          800

          Volusion, LLC

          1/26/2015

          Provider of Online
          Software-as-a-Service
          eCommerce Solutions

          Secured Debt

          11.50%

          1/26/2020

          20,234

          20,162

          19,352

          Unsecured Convertible Debt

          8.00%

          11/16/2023

          409

          409

          291

          Preferred Member Units

          4,876,670

          14,000

          14,000

          Warrants

          1,831,355

          1/26/2025

          2,576

          150

          (29)

          37,147

          33,793

          Subtotal Affiliate Investments (21.5% of net assets at fair value)

          $

          351,764

          $

          330,287

          116


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Non-Control/Non-Affiliate Investments (7)

          AAC Holdings, Inc.

          (11)

          6/30/2017

          Substance Abuse
          Treatment Service
          Provider

          Secured Debt

          13.03% (L+11.00%, Floor 1.00%)

          4/15/2020

          2,227

          2,068

          2,172

          (9) (14)

          Secured Debt

          16.50% (L+12.75%, Floor 1.00%)

          6/30/2023

          14,396

          14,030

          9,358

          (9) (14)

          16,098

          11,530

          Adams Publishing Group, LLC

          (10)

          11/19/2015

          Local Newspaper
          Operator

          Secured Debt

          8.75% (Prime+5.00%, Floor 1.50%)

          7/3/2023

          5,000

          4,930

          5,000

          (9)

          Secured Debt

          9.44% (L+7.50%, Floor 1.50%)

          7/3/2023

          6,158

          6,058

          6,158

          (9)

          Secured Debt

          9.50% (L+7.50%, Floor 1.50%)

          7/3/2023

          197

          197

          197

          (9)

          11,185

          11,355

          ADS Tactical, Inc.

          (10)

          3/7/2017

          Value-Added Logistics
          and Supply Chain
          Provider to the Defense
          Industry

          Secured Debt

          8.03% (L+6.25%, Floor 0.75%)

          7/26/2023

          19,843

          19,703

          19,843

          (9)

          Aethon United BR LP

          (10)

          9/8/2017

          Oil & Gas Exploration &
          Production

          Secured Debt

          8.46% (L+6.75%, Floor 1.00%)

          9/8/2023

          9,750

          9,630

          9,531

          (9)

          Affordable Care Holding Corp.

          (10)

          5/9/2019

          Dental Service
          Organization

          Secured Debt

          6.59% (L+4.75%, Floor 1.00%)

          10/22/2022

          14,396

          14,126

          14,036

          (9)

          ALKU, LLC.

          (11)

          10/18/2019

          Specialty National
          Staffing Operator

          Secured Debt

          7.44% (L+5.50%, Floor 1.00%)

          7/29/2026

          10,000

          9,902

          9,883

          (9)

          Allen Media, LLC.

          (11)

          9/18/2018

          Operator of Cable
          Television Networks

          Secured Debt

          8.48% (L+6.50%, Floor 1.00%)

          8/30/2023

          16,270

          15,894

          15,863

          (9)

          Allen Media Broadcasting LLC

          (10)

          7/3/2019

          Operator of Television
          Broadcasting Networks

          Secured Debt

          8.21% (L+6.25%, Floor 1.00%)

          7/3/2024

          14,906

          14,565

          14,565

          (9)

          American Nuts, LLC

          (10)

          4/10/2018

          Roaster, Mixer and
          Packager of Bulk Nuts
          and Seeds

          Secured Debt

          11.60% (L+9.50%, Floor 1.00%)

          4/10/2023

          12,243

          12,002

          12,233

          (9)

          American Teleconferencing Services, Ltd.

          (11)

          5/19/2016

          Provider of Audio
          Conferencing and Video
          Collaboration Solutions

          Secured Debt

          8.36% (L+6.50%, Floor 1.00%)

          6/8/2023

          17,389

          16,421

          10,460

          (9)

          APTIM Corp.

          (11)

          8/17/2018

          Engineering, Construction
          & Procurement

          Secured Debt

          7.75%

          6/15/2025

          12,452

          10,836

          7,471

          117


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Arcus Hunting LLC

          (10)

          1/6/2015

          Manufacturer of
          Bowhunting and Archery
          Products and Accessories

          Secured Debt

          12.10% (L+10.00%, Floor 1.00%)

          1/13/2020

          13,857

          13,856

          13,856

          (9)

          ASC Ortho Management Company, LLC

          (10)

          8/31/2018

          Provider of Orthopedic
          Services

          Secured Debt

          9.60% (L+7.50%, Floor 1.00%)

          8/31/2023

          4,543

          4,465

          4,490

          (9)

          Secured Debt

          13.25% PIK

          12/1/2023

          1,854

          1,821

          1,854

          (19)

          6,286

          6,344

          ATI Investment Sub, Inc.

          (11)

          7/11/2016

          Manufacturer of Solar
          Tracking Systems

          Secured Debt

          9.01% (L+7.25%, Floor 1.00%)

          6/22/2021

          2,885

          2,859

          2,853

          (9)

          ATX Networks Corp.

          (11) (13) (21)

          6/30/2015

          Provider of Radio
          Frequency Management
          Equipment

          Secured Debt

          8.94% (7.94% Current,
          1.00% PIK) (L+6.00%, Floor 1.00%)

          6/11/2021

          13,593

          13,414

          12,743

          (9) (19)

          Barfly Ventures, LLC

          (10)

          8/31/2015

          Casual Restaurant
          Group

          Secured Debt

          12.00%

          8/31/2020

          10,185

          10,073

          7,736

          Options

          3

          607

          -

          Warrants

          2

          8/31/2025

          473

          -

          (37)

          11,153

          7,736

          Berry Aviation, Inc.

          (10)

          7/6/2018

          Charter Airline Services

          Secured Debt

          12.00% (10.50% Current, 1.50% PIK)

          1/6/2024

          4,554

          4,518

          4,554

          (19)

          Preferred Member Units

          122,416

          16.00% PIK

          125

          125

          (8) (19) (34)

          Preferred Member Units

          1,548,387

          8.00% PIK

          1,671

          776

          (8) (19) (34)

          6,314

          5,455

          BigName Commerce, LLC

          (10)

          5/11/2017

          Provider of Envelopes
          and Complimentary
          Stationery Products

          Secured Debt

          9.35% (L+7.25%, Floor 1.00%)

          5/11/2022

          2,233

          2,218

          2,233

          (9)

          Binswanger Enterprises, LLC

          (10)

          3/10/2017

          Glass Repair and
          Installation Service
          Provider

          Secured Debt

          10.41% (L+8.50%, Floor 1.00%)

          3/9/2022

          13,731

          13,443

          13,731

          (9)

          Member Units

          1,050,000

          1,050

          950

          14,493

          14,681

          Bluestem Brands, Inc.

          (11)

          12/19/2013

          Multi-Channel Retailer of
          General Merchandise

          Secured Debt

          9.31% (L+7.50%, Floor 1.00%)

          11/6/2020

          10,622

          10,571

          7,973

          (9)

          Bojangles', Inc.

          (11)

          2/5/2019

          Quick Service Restaurant
          Group

          Secured Debt

          6.50% (L+4.75%)

          1/28/2026

          7,782

          7,642

          7,827

          Secured Debt

          10.25% (L+8.50%)

          1/28/2027

          5,000

          4,907

          5,012

          12,549

          12,839

          Brainworks Software, LLC

          (10)

          8/12/2014

          Advertising Sales and
          Newspaper Circulation
          Software

          Secured Debt

          4.00%

          7/22/2019

          6,733

          6,733

          5,955

          (9) (17)

          118


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Brightwood Capital Fund Investments

          (12) (13)

          7/21/2014

          Investment Partnership

          LP Interests

          1.6%

          11,160

          9,005

          (8) (35) (36)

          LP Interests

          0.6%

          4,500

          4,504

          (8) (35) (36)

          15,660

          13,509

          Cadence Aerospace LLC

          (10)

          11/14/2017

          Aerostructure
          Manufacturing

          Secured Debt

          8.40% (L+6.50%, Floor 1.00%)

          11/14/2023

          25,287

          25,089

          25,287

          (9)

          California Pizza Kitchen, Inc.

          (11)

          8/29/2016

          Casual Restaurant Group

          Secured Debt

          7.91% (L+6.00%, Floor 1.00%)

          8/23/2022

          14,599

          14,501

          12,739

          (9)

          Central Security Group, Inc.

          (11)

          12/4/2017

          Security Alarm Monitoring
          Service Provider

          Secured Debt

          7.38% (L+5.63%, Floor 1.00%)

          10/6/2021

          13,776

          13,734

          11,985

          (9)

          Cenveo Corporation

          (11)

          9/4/2015

          Provider of Digital
          Marketing Agency
          Services

          Secured Debt

          11.45% (L+9.50%, Floor 1.00%)

          6/7/2023

          5,674

          5,498

          5,674

          (9)

          Common Stock

          177,130

          5,309

          2,923

          10,807

          8,597

          Chisholm Energy Holdings, LLC

          (10)

          5/15/2019

          Oil & Gas Exploration &
          Production

          Secured Debt

          8.16% (L+6.25%, Floor 1.50%)

          5/15/2026

          3,571

          3,488

          3,488

          (9)

          Clarius BIGS, LLC

          (10)

          9/23/2014

          Prints & Advertising
          Film Financing

          Secured Debt

          15.00% PIK

          1/5/2015

          2,846

          2,846

          40

          (14) (17)

          Clickbooth.com, LLC

          (10)

          12/5/2017

          Provider of Digital
          Advertising Performance
          Marketing Solutions

          Secured Debt

          10.59% (L+8.50%, Floor 1.00%)

          12/5/2022

          2,663

          2,625

          2,663

          (9)

          Construction Supply Investments, LLC

          (10)

          12/29/2016

          Distribution Platform of
          Specialty Construction
          Materials to
          Professional Concrete
          and Masonry Contractors

          Member Units

          46,152

          4,866

          7,667

          Corel Corporation

          (11) (13) (21)

          7/24/2019

          Publisher of Desktop and
          Cloud-based Software

          Secured Debt

          6.91% (L+5.00%, Floor 1.00%)

          7/2/2026

          15,000

          14,293

          14,531

          (9)

          CTVSH, PLLC

          (10)

          8/3/2017

          Emergency Care and
          Specialty Service Animal
          Hospital

          Secured Debt

          9.91% (L+8.00%, Floor 1.00%)

          8/3/2022

          10,099

          10,039

          10,099

          (9)

          Darr Equipment LP

          (10)

          4/15/2014

          Heavy Equipment Dealer

          Secured Debt

          12.50% (11.50% Current, 1.00% PIK)

          6/22/2023

          5,899

          5,899

          5,899

          (19)

          Warrants

          915,734

          12/23/2023

          474

          300

          (31)

          6,373

          6,199

          Digital River, Inc.

          (11)

          2/24/2015

          Provider of Outsourced
          e-Commerce Solutions
          and Services

          Secured Debt

          7.90% (L+6.00%, Floor 1.00%)

          2/12/2021

          15,876

          15,771

          15,837

          (9)

          119


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          DTE Enterprises, LLC

          (10)

          4/13/2018

          Industrial Powertrain
          Repair and Services

          Secured Debt

          9.24% (L+7.50%, Floor 1.50%)

          4/13/2023

          10,992

          10,827

          10,982

          (9)

          Class AA Preferred Member Units (non-voting)

          10.00% PIK

          860

          860

          (8) (19)

          Class A Preferred Member Units

          776,316

          776

          1,490

          12,463

          13,332

          Dynamic Communities, LLC

          (10)

          7/17/2018

          Developer of Business
          Events and Online
          Community Groups

          Secured Debt

          9.75% (L+8.00%, Floor 1.00%)

          7/17/2023

          5,460

          5,375

          5,458

          (9)

          Echo US Holdings, LLC.

          (10)

          11/12/2019

          Developer and
          Manufacturer of PVC and
          Polypropylene Materials

          Secured Debt

          7.96% (L+6.25%, Floor 1.63%)

          10/25/2024

          22,414

          22,292

          22,292

          (9)

          EnCap Energy Fund Investments

          (12) (13)

          12/28/2010

          Investment Partnership

          LP Interests

          0.1%

          3,617

          1,354

          (8) (35) (36)

          LP Interests

          0.4%

          2,097

          703

          (35) (36)

          LP Interests

          0.1%

          4,360

          2,780

          (8) (35) (36)

          LP Interests

          0.1%

          8,427

          8,822

          (8) (35) (36)

          LP Interests

          0.8%

          7,337

          5,669

          (8) (35) (36)

          LP Interests

          0.2%

          6,674

          6,677

          (8) (35) (36)

          32,512

          26,005

          Encino Acquisition Partners Holdings, Inc.

          (11)

          11/16/2018

          Oil & Gas Exploration &
          Production

          Secured Debt

          8.50% (L+6.75%, Floor 1.00%)

          10/29/2025

          9,000

          8,921

          6,795

          (9)

          EPIC Y-Grade Services, LP

          (11)

          6/22/2018

          NGL Transportation &
          Storage

          Secured Debt

          8.04% (L+6.00%)

          6/13/2024

          10,275

          10,116

          10,050

          Evergreen Skills Lux S.á r.l.
          (d/b/a Skillsoft)

          (11) (13)

          5/5/2014

          Technology-based
          Performance Support
          Solutions

          Secured Debt

          10.45% (L+8.25%, Floor 1.00%)

          4/28/2022

          6,999

          6,928

          1,965

          (9)

          Felix Investments Holdings II

          (10)

          8/9/2017

          Oil & Gas Exploration &
          Production

          Secured Debt

          8.40% (L+6.50%, Floor 1.00%)

          8/9/2022

          5,000

          4,944

          5,000

          (9)

          Flavors Holdings Inc.

          (11)

          10/15/2014

          Global Provider of
          Flavoring and
          Sweetening Products

          Secured Debt

          7.77% (L+5.75%, Floor 1.00%)

          4/3/2020

          11,297

          11,247

          10,619

          (9)

          Fortna, Inc.

          (10)

          7/23/2019

          Process, Physical Distribution
          and Logistics Consulting
          Services

          Secured Debt

          6.75% (L+5.00%)

          4/8/2025

          7,751

          7,577

          7,577

          GeoStabilization International (GSI)

          (11)

          12/31/2018

          Geohazard Engineering
          Services & Maintenance

          Secured Debt

          7.05% (L+5.25%)

          12/19/2025

          16,376

          16,230

          16,335

          GoWireless Holdings, Inc.

          (11)

          12/31/2017

          Provider of Wireless
          Telecommunications
          Carrier Services

          Secured Debt

          8.25% (L+6.50%, Floor 1.00%)

          12/22/2024

          18,120

          17,964

          17,471

          (9)

          120


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Grupo Hima San Pablo, Inc.

          (11)

          3/7/2013

          Tertiary Care Hospitals

          Secured Debt

          8.91% (L+7.00%, Floor 1.50%)

          4/30/2019

          4,504

          4,504

          3,343

          (9) (17)

          Secured Debt

          13.75%

          10/15/2018

          2,055

          2,040

          167

          (17)

          6,544

          3,510

          GS HVAM Intermediate, LLC

          (10)

          10/18/2019

          Specialized Food
          Distributor

          Secured Debt

          7.51% (L+5.75%, Floor 1.00%)

          10/2/2024

          11,364

          11,233

          11,233

          (9)

          HDC/HW Intermediate Holdings

          (10)

          12/21/2018

          Managed Services and
          Hosting Provider

          Secured Debt

          9.53% (L+7.50%, Floor 1.00%)

          12/21/2023

          3,498

          3,440

          3,493

          (9)

          Hoover Group, Inc.

          (10) (13)

          10/21/2016

          Provider of Storage
          Tanks and Related
          Products to the Energy
          and Petrochemical
          Markets

          Secured Debt

          9.26% (L+7.25%, Floor 1.00%)

          1/28/2021

          20,764

          20,119

          19,206

          (9)

          Hunter Defense Technologies, Inc.

          (10)

          3/29/2018

          Provider of Military
          and Commercial Shelters
          and Systems

          Secured Debt

          9.02% (L+7.00%, Floor 1.00%)

          3/29/2023

          29,097

          28,659

          29,097

          (9)

          HW Temps LLC

          7/2/2015

          Temporary Staffing
          Solutions

          Secured Debt

          8.00%

          3/29/2023

          10,181

          10,025

          8,913

          Hydrofarm Holdings LLC

          (10)

          5/18/2017

          Wholesaler of
          Horticultural Products

          Secured Debt

          11.80% (3.54% Current, 8.26% PIK) (L+10.00%)

          5/12/2022

          7,660

          7,547

          6,414

          (19)

          Hyperion Materials & Technologies, Inc.

          (11) (13)

          9/12/2019

          Manufacturer of Cutting
          and Machine Tools &
          Speciality Polishing
          Compounds

          Secured Debt

          7.25% (L+5.50%, Floor 1.00%)

          8/28/2026

          22,500

          22,066

          22,275

          (9)

          iEnergizer Limited

          (10) (13) (21)

          4/17/2019

          Provider of Business
          Outsourcing Solutions

          Secured Debt

          7.79% (L+6.00%, Floor 1.00%)

          4/17/2024

          12,963

          12,848

          12,962

          (9)

          Implus Footcare, LLC

          (10)

          6/1/2017

          Provider of Footwear and
          Related Accessories

          Secured Debt

          8.27% (L+6.25%, Floor 1.00%)

          4/30/2024

          18,577

          18,178

          18,217

          (9)

          Independent Pet Partners Intermediate
          Holdings, LLC

          (10)

          11/20/2018

          Omnichannel Retailer of Specialty Pet Products

          Secured Debt

          11.28% (L+9.00%, Floor 1.00%)

          11/19/2023

          18,799

          18,487

          18,799

          (9)

          Member Units

          1,558,333

          1,558

          1,260

          20,045

          20,059

          Industrial Services Acquisition, LLC

          (10)

          6/17/2016

          Industrial Cleaning
          Services

          Unsecured Debt

          13.00% (6.00% Current, 7.00% PIK)

          12/17/2022

          5,242

          5,174

          5,242

          (19)

          Preferred Member Units

          144

          10.00% PIK

          103

          103

          (8) (19) (34)

          Preferred Member Units

          80

          20.00% PIK

          60

          60

          (8) (19) (34)

          Member Units

          900

          900

          510

          (34)

          6,237

          5,915

          121


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Inn of the Mountain Gods Resort
          and Casino

          (11)

          10/30/2013

          Hotel & Casino Owner &
          Operator

          Secured Debt

          9.25%

          11/30/2020

          7,762

          7,584

          7,684

          Interface Security Systems, L.L.C

          (10)

          8/7/2019

          Commercial Security &
          Alarm Services

          Secured Debt

          8.77% (L+7.00%, Floor 1.75%)

          8/7/2023

          7,500

          7,363

          7,363

          (9)

          Intermedia Holdings, Inc.

          (11)

          8/3/2018

          Unified Communications
          as a Service

          Secured Debt

          7.75% (L+6.00%, Floor 1.00%)

          7/19/2025

          20,130

          20,033

          20,180

          (9)

          Invincible Boat Company, LLC.

          (10)

          8/28/2019

          Manufacturer of Sport
          Fishing Boats

          Secured Debt

          8.53% (L+6.50%, Floor 1.00%)

          8/28/2025

          9,872

          9,773

          9,773

          (9)

          Isagenix International, LLC

          (11)

          6/21/2018

          Direct Marketer of Health
          & Wellness Products

          Secured Debt

          7.77% (L+5.75%, Floor 1.00%)

          6/14/2025

          5,943

          5,893

          4,273

          (9)

          JAB Wireless, Inc.

          (10)

          5/2/2018

          Fixed Wireless
          Broadband Provider

          Secured Debt

          9.74% (L+8.00%, Floor 1.00%)

          5/2/2023

          14,775

          14,669

          14,775

          (9)

          Jackmont Hospitality, Inc.

          (10)

          5/26/2015

          Franchisee of Casual
          Dining Restaurants

          Secured Debt

          8.45% (L+6.75%, Floor 1.00%)

          5/26/2021

          4,059

          4,055

          4,059

          (9)

          Joerns Healthcare, LLC

          (11)

          4/3/2013

          Manufacturer and
          Distributor of Health
          Care Equipment &
          Supplies

          Secured Debt

          7.91% (L+6.00%, Floor 1.00%)

          8/21/2024

          4,016

          3,942

          3,942

          (9)

          Common Stock

          472,579

          4,429

          4,429

          8,371

          8,371

          Kemp Technologies Inc.

          (10)

          6/27/2019

          Provider of Application
          Delivery Controllers

          Secured Debt

          8.00% (L+6.25%, Floor 1.00%)

          3/29/2024

          7,462

          7,326

          7,463

          (9)

          Kore Wireless Group Inc.

          (11)

          12/31/2018

          Mission Critical Software
          Platform

          Secured Debt

          7.52% (L+5.50%)

          12/20/2024

          19,285

          19,189

          19,164

          Larchmont Resources, LLC

          (11)

          8/13/2013

          Oil & Gas Exploration
          & Production

          Secured Debt

          8.89% (L+7.00%, (Floor 1.00%)

          8/7/2020

          2,145

          2,145

          1,990

          (9)

          Member Units

          2,828

          353

          707

          (34)

          2,498

          2,697

          Laredo Energy VI, LP

          (10)

          1/15/2019

          Oil & Gas Exploration &
          Production

          Secured Debt

          11.64% (5.38% Current, 6.26% PIK) (L+9.63%, Floor 2.00%)

          11/19/2021

          11,312

          11,166

          10,638

          (9) (19)

          Lightbox Holdings, L.P.

          (11)

          5/23/2019

          Provider of Commercial
          Real Estate Software

          Secured Debt

          6.74% (L+5.00%)

          5/9/2026

          14,925

          14,713

          14,738

          LKCM Headwater Investments I, L.P.

          (12) (13)

          1/25/2013

          Investment Partnership

          LP Interests

          2.3%

          1,746

          3,682

          (8) (35) (36)

          122


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          LL Management, Inc.

          (10)

          5/2/2019

          Medical Transportation
          Service Provider

          Secured Debt

          8.56% (L+6.50%, Floor 1.00%)

          9/25/2023

          13,754

          13,625

          13,751

          (9)

          Logix Acquisition Company, LLC

          (10)

          6/24/2016

          Competitive Local
          Exchange Carrier

          Secured Debt

          7.50% (L+5.75%, Floor 1.00%)

          12/22/2024

          18,381

          18,199

          18,197

          (9)

          Looking Glass Investments, LLC

          (12) (13)

          7/1/2015

          Specialty Consumer
          Finance

          Member Units

          3

          125

          25

          Member Units

          190,712

          49

          16

          (34)

          174

          41

          LSF9 Atlantis Holdings, LLC

          (11)

          5/17/2017

          Provider of Wireless
          Telecommunications
          Carrier Services

          Secured Debt

          7.74% (L+6.00%, Floor 1.00%)

          5/1/2023

          9,458

          9,458

          8,761

          (9)

          Lulu's Fashion Lounge, LLC

          (10)

          8/31/2017

          Fast Fashion E-Commerce
          Retailer

          Secured Debt

          10.75% (L+9.00%, Floor 1.00%)

          8/28/2022

          11,335

          11,070

          11,109

          (9)

          Lynx FBO Operating LLC

          (10)

          9/30/2019

          Fixed Based Operator in
          the General Aviation
          Industry

          Secured Debt

          7.86% (L+5.75%, Floor 1.00%)

          9/30/2024

          13,750

          13,451

          13,451

          (9)

          Member Units

          3,704

          500

          500

          13,951

          13,951

          Mac Lean-Fogg Company

          (10)

          4/22/2019

          Manufacturer and
          Supplier for Auto and
          Power Markets

          Secured Debt

          6.75% (L+5.00%)

          12/22/2025

          16,648

          16,528

          16,643

          Preferred Stock

          1,516

          13.75% (4.50% Cash, 9.25% PIK)

          1,775

          1,775

          1,775

          (8) (19)

          18,303

          18,418

          MHVC Acquisition Corp.

          (11)

          5/8/2017

          Provider of differentiated
          information solutions,
          systems engineering,
          and analytics

          Secured Debt

          7.01% (L+5.25%, Floor 1.00%)

          4/29/2024

          19,950

          19,855

          19,950

          (9)

          Mills Fleet Farm Group, LLC

          (10)

          10/24/2018

          Omnichannel Retailer of
          Work, Farm and Lifestyle
          Merchandise

          Secured Debt

          9.04% (8.29% Current,
          0.75% PIK) (L+6.25%, Floor 1.00%)

          10/24/2024

          14,879

          14,556

          14,187

          (9) (19)

          NBG Acquisition Inc

          (11)

          4/28/2017

          Wholesaler of Home
          Décor Products

          Secured Debt

          7.52% (L+5.50%, Floor 1.00%)

          4/26/2024

          4,181

          4,134

          3,247

          (9)

          NinjaTrader, LLC

          (10)

          12/18/2019

          Operator of Futures Trading Platform

          Secured Debt

          7.90% (L+6.00%, Floor 1.50%)

          12/18/2024

          9,675

          9,490

          9,490

          (9)

          NNE Partners, LLC

          (10)

          3/2/2017

          Oil & Gas Exploration
          & Production

          Secured Debt

          9.91% (L+8.00%)

          3/2/2022

          23,417

          23,268

          23,147

          123


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          North American Lifting Holdings, Inc.

          (11)

          2/26/2015

          Crane Service Provider

          Secured Debt

          6.52% (L+4.50%, Floor 1.00%)

          11/27/2020

          7,584

          7,300

          6,417

          (9)

          Novetta Solutions, LLC

          (11)

          6/21/2017

          Provider of Advanced
          Analytics Solutions for
          Defense Agencies

          Secured Debt

          6.76% (L+5.00%, Floor 1.00%)

          10/17/2022

          21,060

          20,673

          20,749

          (9)

          NTM Acquisition Corp.

          (11)

          7/12/2016

          Provider of B2B Travel
          Information Content

          Secured Debt

          8.00% (L+6.25% ,Floor 1.00%)

          6/7/2022

          4,879

          4,874

          4,879

          (9)

          Ospemifene Royalty Sub LLC (QuatRx)

          (10)

          7/8/2013

          Estrogen-Deficiency
          Drug Manufacturer and
          Distributor

          Secured Debt

          11.50%

          11/15/2026

          4,868

          4,868

          463

          (14)

          PaySimple, Inc.

          (10)

          9/9/2019

          Leading technology services commerce platform

          Secured Debt

          7.28% (L+5.50%, Floor 1.00%)

          8/23/2025

          15,845

          15,586

          15,766

          (9)

          Permian Holdco 2, Inc.

          (11)

          2/12/2013

          Storage Tank Manufacturer

          Unsecured Debt

          14.00% PIK

          10/15/2021

          456

          456

          341

          (19)

          Unsecured Debt

          18.00% PIK

          6/30/2022

          319

          319

          319

          (19)

          Preferred Stock

          154,558

          799

          100

          (34)

          1,574

          760

          Point.360

          (10)

          7/8/2015

          Fully Integrated Provider
          of Digital Media Services

          Warrants

          65,463

          7/7/2020

          69

          -

          (38)

          Common Stock

          163,658

          273

          -

          342

          -

          PricewaterhouseCoopers Public Sector LLP

          (11)

          5/24/2018

          Provider of Consulting
          Services to Governments

          Secured Debt

          9.75% (L+8.00%)

          5/1/2026

          9,000

          8,965

          8,865

          PT Network, LLC

          (10)

          11/1/2013

          Provider of Outpatient
          Physical Therapy and
          Sports Medicine Services

          Secured Debt

          9.44% (7.44% Current,
          2.00% PIK) (L+5.50%, Floor 1.00%)

          11/30/2023

          8,491

          8,491

          8,414

          (9) (19)

          Research Now Group, Inc. and Survey Sampling International, LLC

          (11)

          12/31/2017

          Provider of Outsourced
          Online Surveying

          Secured Debt

          7.41% (L+5.50%, Floor 1.00%)

          12/20/2024

          18,115

          17,590

          18,140

          (9)

          RM Bidder, LLC

          (10)

          11/12/2015

          Scripted and Unscripted
          TV and Digital
          Programming Provider

          Warrants

          327,532

          10/20/2025

          425

          -

          (32)

          Member Units

          2,779

          46

          18

          471

          18

          SAFETY Investment Holdings, LLC

          4/29/2016

          Provider of Intelligent
          Driver Record
          Monitoring Software
          and Services

          Member Units

          2,000,000

          2,000

          2,380

          Salient Partners L.P.

          (11)

          6/25/2015

          Provider of Asset
          Management Services

          Secured Debt

          7.69% (L+6.00%, Floor 1.00%)

          6/9/2021

          6,675

          6,657

          6,675

          (9)

          124


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          SMART Modular Technologies, Inc.

          (10) (13)

          8/18/2017

          Provider of Specialty
          Memory Solutions

          Secured Debt

          8.16% (L+6.25%, Floor 1.00%)

          8/9/2022

          18,484

          18,332

          18,669

          (9)

          Staples Canada ULC

          (10) (13) (21)

          9/14/2017

          Office Supplies Retailer

          Secured Debt

          8.98% (L+7.00%, Floor 1.00%)

          9/12/2024

          14,546

          14,348

          13,530

          (9) (22)

          TE Holdings, LLC

          (11)

          12/5/2013

          Oil & Gas Exploration
          & Production

          Member Units

          97,048

          970

          -

          TEAM Public Choices, LLC

          (10)

          10/28/2019

          Home-Based Care
          Employment Service
          Provider

          Secured Debt

          7.75% (L+6.00%, Floor 1.00%)

          9/20/2024

          16,844

          16,680

          16,680

          (9)

          Tectonic Financial, Inc.

          5/15/2017

          Financial Services
          Organization

          Common Stock

          400,000

          2,000

          2,620

          (8)

          TGP Holdings III LLC

          (11)

          9/30/2017

          Outdoor Cooking &
          Accessories

          Secured Debt

          10.25% (L+8.50%, Floor 1.00%)

          9/25/2025

          5,500

          5,440

          5,143

          (9)

          The Pasha Group

          (11)

          2/2/2018

          Diversified Logistics and
          Transportation Provided

          Secured Debt

          9.31% (L+7.50%, Floor 1.00%)

          1/26/2023

          8,984

          8,793

          9,074

          (9)

          TMC Merger Sub Corp.

          (11)

          12/22/2016

          Refractory & Maintenance
          Services Provider

          Secured Debt

          8.53% (L+6.75%, Floor 1.00%)

          10/31/2022

          15,527

          15,394

          15,392

          (9) (24)

          TOMS Shoes, LLC

          (11)

          11/13/2014

          Global Designer,
          Distributor, and
          Retailer of Casual
          Footwear

          Secured Debt

          7.46% (L+5.50%, Floor 1.00%)

          9/30/2025

          571

          571

          571

          (9)

          Secured Debt

          6.96% (L+5.00%, Floor 1.00%)

          12/31/2025

          1,637

          1,637

          1,637

          (9)

          Member Units

          16,321

          245

          245

          2,453

          2,453

          USA DeBusk LLC

          (10)

          10/22/2019

          Provider of Industrial
          Cleaning Services

          Secured Debt

          7.54% (L+5.75%, Floor 1.00%)

          10/22/2024

          30,000

          29,423

          29,423

          (9)

          U.S. TelePacific Corp.

          (11)

          9/14/2016

          Provider of
          Communications and
          Managed Services

          Secured Debt

          7.02% (L+5.00%, Floor 1.00%)

          5/2/2023

          17,088

          16,887

          16,447

          (9)

          Vida Capital, Inc

          (11)

          10/10/2019

          Alternative Asset Manager

          Secured Debt

          7.93% (L+6.00%)

          10/1/2026

          18,500

          18,232

          18,315

          VIP Cinema Holdings, Inc.

          (11)

          3/9/2017

          Supplier of Luxury
          Seating to the Cinema
          Industry

          Secured Debt

          9.91% (L+8.00%, Floor 1.00%)

          3/1/2023

          10,063

          10,030

          5,301

          (9) (14)

          125


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          Portfolio Company (1) (20)

          Investment
          Date (24)

          Business
          Description

          Type of
          Investment (2) (3) (15)

          Shares/Units

          Rate

          Maturity
          Date

          Principal (4)

          Cost (4)

          Fair
          Value (18)

          Vistar Media, Inc.

          (10)

          2/17/2017

          Operator of Digital
          Out-of-Home
          Advertising Platform

          Secured Debt

          10.00% (L+8.00%, Floor 1.00%)

          4/3/2023

          4,963

          4,784

          4,939

          (9)

          Preferred Stock

          70,207

          767

          1,610

          Warrants

          69,675

          4/3/2029

          -

          1,630

          (33)

          5,551

          8,179

          Wireless Vision Holdings, LLC

          (10)

          9/29/2017

          Provider of Wireless
          Telecommunications
          Carrier Services

          Secured Debt

          12.57% (11.57% Current,
          1.00% PIK) (L+9.65%, Floor 1.00%)

          9/29/2022

          7,136

          7,022

          7,129

          (9) (19) (23)

          Secured Debt

          11.67% (10.67% Current, 1.00% PIK) (L+8.91%, Floor 1.00%)

          9/29/2022

          6,201

          6,132

          6,200

          (9) (19) (23)

          13,154

          13,329

          YS Garments, LLC

          (11)

          8/22/2018

          Designer and Provider of
          Branded Activewear

          Secured Debt

          7.60% (L+6.00%, Floor 1.00%)

          8/9/2024

          14,531

          14,412

          14,404

          (9)

          Zilliant Incorporated

          6/15/2012

          Price Optimization and
          Margin Management
          Solutions

          Preferred Stock

          186,777

          154

          260

          Warrants

          952,500

          6/15/2022

          1,071

          1,190

          (30)

          1,225

          1,450

          Subtotal Non-Control/Non-Affiliate Investments (80.7% of net assets at fair value)

          $

          1,297,587

          $

          1,239,316

          Total Portfolio Investments, December 31, 2019 (169.4% of net assets at fair value)

          $

          2,427,718

          $

          2,602,324

          126


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          (1)

          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Company’s Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)

          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)

          See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies.

          (4)

          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)

          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act"), as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)

          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.

          (7)

          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)

          Income producing through dividends or distributions.

          (9)

          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower’s option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2019. As noted in this schedule, 64% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.06%.

          (10)

          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

          (11)

          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)

          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)

          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)

          Non-accrual and non-income producing investment.

          (15)

          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status.

          (16)

          External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)

          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)

          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)

          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)

          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)

          Portfolio company headquarters are located outside of the United States.

          (22)

          In connection with the Company's debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $17.6 million Canadian Dollars and receive $13.4 million U.S. Dollars with a settlement date of September 14, 2020. The unrealized depreciation on the forward foreign currency contract is $0.2 million as of December 31, 2019.

          127


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2019

          (dollars in thousands)

          (23)

          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)

          The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than the contractual stated interest rate of LIBOR plus 7.14% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such lower rate.

          (25)

          All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities.”

          (26)

          Investment date represents the date of initial investment in the portfolio company.

          (27)

          Investment has an unfunded commitment as of December 31, 2019 (see Note K).  The fair value of the investment includes the impact of the fair value of any unfunded commitments.

          (28)

          Investment date represents the date of initial investment in the portfolio company.

          (29)

          Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.

          (30)

          Warrants are presented in equivalent shares with a strike price of $0.001 per share.

          (31)

          Warrants are presented in equivalent units with a strike price of $1.50 per unit.

          (32)

          Warrants are presented in equivalent units with a strike price of $14.28 per unit.

          (33)

          Warrants are presented in equivalent shares with a strike price of $10.92 per share.

          (34)

          Shares/Units represent ownership in an underlying Real Estate or HoldCo entity.

          (35)

          Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.

          (36)

          Investment is in an underlying Limited Partnership that is managed by the respective Portfolio Company.

          (37)

          Warrants are presented in equivalent units with a strike price of $1.00 per unit.

          (38)

          Warrants are presented in equivalent shares with a strike price of $0.75 per share.

          128


          MAIN STREET CAPITAL CORPORATION

          Notes to Consolidated Schedule of InvestmentsFinancial Statements

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          CBT Nuggets, LLC

           June 1, 2006 

          Produces and Sells IT Training Certification Videos

                      

               

          Member Units (416 units)(8)

               1,300  61,610 

                          

          Chamberlin Holding LLC

           February 26, 2018 

          Roofing and Waterproofing Specialty Contractor

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.75%, Secured Debt (Maturity — February 26, 2023)(9)

            20,203  20,028  20,028 

               

          Member Units (4,347 units)(8)

               11,440  18,940 

               

          Member Units (Chamberlin Langfield Real Estate, LLC) (732,160 units)

               732  732 

                     32,200  39,700 

                          

          Charps, LLC

           February 3, 2017 

          Pipeline Maintenance and Construction

                      

               

          12% Secured Debt (Maturity — February 3, 2022)

            11,900  11,805  11,888 

               

          Preferred Member Units (1,600 units)(8)

               400  2,270 

                     12,205  14,158 

                          

          Clad-Rex Steel, LLC

           December 20, 2016 

          Specialty Manufacturer of Vinyl-Clad Metal

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 11.35%, Secured Debt (Maturity — December 20, 2021)(9)

            12,080  12,001  12,080 

               

          Member Units (717 units)(8)

               7,280  10,610 

               

          10% Secured Debt (Clad-Rex Steel RE Investor, LLC) (Maturity — December 20, 2036)

            1,161  1,150  1,161 

               

          Member Units (Clad-Rex Steel RE Investor, LLC) (800 units)

               210  350 

                     20,641  24,201 

                          

          CMS Minerals Investments

           January 30, 2015 

          Oil & Gas Exploration & Production

                      

               

          Member Units (CMS Minerals II, LLC) (100 units)(8)

               2,707  2,580 

                          

          Copper Trail Fund Investments(12)(13)

           July 17, 2017 

          Investment Partnership

                      

               

          LP Interests (CTMH, LP) (Fully diluted 38.8%)

               872  872 

               

          LP Interests (Copper Trail Energy Fund I, LP) (Fully diluted 30.1%)(8)

               3,495  4,170 

                     4,367  5,042 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Datacom, LLC

           May 30, 2014 

          Technology and Telecommunications Provider

                      

               

          8% Secured Debt (Maturity — May 30, 2019)(14)

            1,800  1,800  1,690 

               

          10.50% PIK Secured Debt (Maturity — May 30, 2019)(14)(19)

            12,511  12,479  9,786 

               

          Class A Preferred Member Units

               1,294   

               

          Class B Preferred Member Units (6,453 units)

               6,030   

                     21,603  11,476 

                          

          Digital Products Holdings LLC

           April 1, 2018 

          Designer and Distributor of Consumer Electronics

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.38%, Secured Debt (Maturity — April 1, 2023)(9)

            25,740  25,511  25,511 

               

          Preferred Member Units (3,451 shares)(8)

               8,466  8,466 

                     33,977  33,977 

                          

          Direct Marketing Solutions, Inc.

           February 13, 2018 

          Provider of Omni-Channel Direct Marketing Services

                      

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 13.38%, Secured Debt (Maturity — February 13, 2023)(9)

            18,017  17,848  17,848 

               

          Preferred Stock (8,400 shares)

               8,400  14,900 

                     26,248  32,748 

                          

          Gamber-Johnson Holdings, LLC

           June 24, 2016 

          Manufacturer of Ruggedized Computer Mounting Systems

                      

               

          LIBOR Plus 7.50% (Floor 2.00%), Current Coupon 9.85%, Secured Debt (Maturity — June 24, 2021)(9)

            21,486  21,356  21,486 

               

          Member Units (8,619 units)(8)

               14,844  45,460 

                     36,200  66,946 

                          

          Garreco, LLC

           July 15, 2013 

          Manufacturer and Supplier of Dental Products

                      

               

          LIBOR Plus 8.00% (Floor 1.00%, Ceiling 1.50%), Current Coupon 9.50%, Secured Debt (Maturity — March 31, 2020)(9)

            5,121  5,099  5,099 

               

          Member Units (1,200 units)

               1,200  2,590 

                     6,299  7,689 

                          

          GRT Rubber Technologies LLC

           December 19, 2014 

          Manufacturer of Engineered Rubber Products

                      

               

          LIBOR Plus 7.00%, Current Coupon 9.35%, Secured Debt (Maturity — December 31, 2023)(9)

            9,740  9,716  9,740 

               

          Member Units (5,879 units)(8)

               13,065  39,060 

                     22,781  48,800 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Guerdon Modular Holdings, Inc.

           August 13, 2014 

          Multi-Family and Commercial Modular Construction Company

                      

               

          13% Secured Debt (Maturity — March 1, 2019)

            12,588  12,572  12,002 

               

          Preferred Stock (404,998 shares)

               1,140   

               

          Common Stock (212,033 shares)

               2,983   

               

          Warrants (6,208,877 equivalent shares; Expiration — April 25, 2028; Strike price — $0.01 per unit)

                  

                     16,695  12,002 

                          

          Gulf Manufacturing, LLC

           August 31, 2007 

          Manufacturer of Specialty Fabricated Industrial Piping Products

                      

               

          Member Units (438 units)(8)

               2,980  11,690 

                          

          Gulf Publishing Holdings, LLC

           April 29, 2016 

          Energy Industry Focused Media and Publishing

                      

               

          12.5% Secured Debt (Maturity — April 29, 2021)

            12,666  12,594  12,594 

               

          Member Units (3,681 units)

               3,681  4,120 

                     16,275  16,714 

                          

          Harborside Holdings, LLC

           March 20, 2017 

          Real Estate Holding Company

                      

               

          Member units (100 units)

               6,306  9,500 

                          

          Harris Preston Fund Investments(12)(13)

           October 1, 2017 

          Investment Partnership

                      

               

          LP Interests (2717 MH, L.P.) (Fully diluted 49.3%)

               1,040  1,133 

                          

          Harrison Hydra-Gen, Ltd.

           June 4, 2010 

          Manufacturer of Hydraulic Generators

                      

               

          Common Stock (107,456 shares)(8)

               718  8,070 

                          

          HW Temps LLC

           July 2, 2015 

          Temporary Staffing Solutions

                      

               

          LIBOR Plus 13.00% (Floor 1.00%), Current Coupon 15.35%, Secured Debt (Maturity July 2, 2020)(9)

            9,976  9,938  9,938 

               

          Preferred Member Units (3,200 units)(8)

               3,942  3,942 

                     13,880  13,880 

                          

          IDX Broker, LLC

           November 15, 2013 

          Provider of Marketing and CRM Tools for the Real Estate Industry

                      

               

          11.5% Secured Debt (Maturity — November 15, 2020)

            14,350  14,262  14,350 

               

          Preferred Member Units (5,607 units)(8)

               5,952  13,520 

                     20,214  27,870 

                          

          Jensen Jewelers of Idaho, LLC

           November 14, 2006 

          Retail Jewelry Store

                      

               

          Prime Plus 6.75% (Floor 2.00%), Current Coupon 12.00%, Secured Debt (Maturity — November 14, 2019)(9)

            3,355  3,337  3,355 

               

          Member Units (627 units)(8)

               811  5,090 

                     4,148  8,445 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          KBK Industries, LLC

           January 23, 2006 

          Manufacturer of Specialty Oilfield and Industrial Products

                      

               

          Member Units (325 units)(8)

               783  8,610 

                          

          Kickhaefer Manufacturing Company, LLC

           October 31, 2018 

          Precision Metal Parts Manufacturing

                      

               

          11.5% Secured Debt (Maturity — October 31, 2020)

            1,064  1,045  1,045 

               

          11.5% Secured Debt (Maturity — October 31, 2023)

            28,000  27,730  27,730 

               

          Member Units (581 units)

               12,240  12,240 

               

          9.0% Secured Debt (Maturity — October 31, 2048)

            4,006  3,970  3,970 

               

          Member Units (KMC RE Investor, LLC) (800 units)

               992  992 

                     45,977  45,977 

                          

          Lamb Ventures, LLC

           May 30, 2008 

          Aftermarket Automotive Services Chain

                      

               

          11% Secured Debt (Maturity — July 1, 2022)

            8,339  8,306  8,339 

               

          Preferred Stock (non-voting)

               400  400 

               

          Member Units (742 units)

               5,273  7,440 

               

          9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — March 31, 2027)

            432  428  432 

               

          Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

               625  630 

                     15,032  17,241 

                          

          Market Force Information, LLC

           July 28, 2017 

          Provider of Customer Experience Management Services

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.74%, Secured Debt (Maturity — July 28, 2022)(9)

            200  200  200 

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 13.74%, Secured Debt (Maturity — July 28, 2022)(9)

            22,800  22,624  22,624 

               

          Member Units (657,113 units)

               14,700  13,100 

                     37,524  35,924 

                          

          MH Corbin Holding LLC

           August 31, 2015 

          Manufacturer and Distributor of Traffic Safety Products

                      

               

          10% Current / 3% PIK Secured Debt (Maturity — August 31, 2020)(14)(19)

            12,263  12,121  11,733 

               

          Preferred Member Units (4,000 shares)

               6,000  1,000 

                     18,121  12,733 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Mid-Columbia Lumber Products, LLC

           December 18, 2006 

          Manufacturer of Finger-Jointed Lumber Products

                      

               

          10% Secured Debt (Maturity — January 15, 2020)

            1,750  1,746  1,746 

               

          12% Secured Debt (Maturity — January 15, 2020)

            3,900  3,880  3,880 

               

          Member Units (7,874 units)

               3,001  3,860 

               

          9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity — May 13, 2025)

            746  746  746 

               

          Member Units (Mid-Columbia Real Estate, LLC) (500 units)(8)

               790  1,470 

                     10,163  11,702 

                          

          MSC Adviser I, LLC(16)

           November 22, 2013 

          Third Party Investment Advisory Services

                      

               

          Member Units (Fully diluted 100.0%)(8)

                 65,748 

                          

          Mystic Logistics Holdings, LLC

           August 18, 2014 

          Logistics and Distribution Services Provider for Large Volume Mailers

                      

               

          12% Secured Debt (Maturity — August 15, 2019)

            7,536  7,506  7,506 

               

          Common Stock (5,873 shares)

               2,720  210 

                     10,226  7,716 

                          

          NAPCO Precast, LLC

           January 31, 2008 

          Precast Concrete Manufacturing

                      

               

          LIBOR Plus 8.50%, Current Coupon 11.24%, Secured Debt (Maturity — May 31, 2019)

            11,475  11,464  11,475 

               

          Member Units (2,955 units)(8)

               2,975  13,990 

                     14,439  25,465 

                          

          NexRev LLC

           February 28, 2018 

          Provider of Energy Efficiency Products & Services

                      

               

          11% Secured Debt (Maturity — February 28, 2023)

            17,440  17,288  17,288 

               

          Preferred Member Units (86,400,000 units)(8)

               6,880  7,890 

                     24,168  25,178 

                          

          NRI Clinical Research, LLC

           September 8, 2011 

          Clinical Research Service Provider

                      

               

          14% Secured Debt (Maturity — June 8, 2022)

            6,685  6,545  6,685 

               

          Warrants (251,723 equivalent units; Expiration — June 8, 2027; Strike price — $0.01 per unit)

               252  660 

               

          Member Units (1,454,167 units)

               765  2,478 

                     7,562  9,823 

                          

          NRP Jones, LLC

           December 22, 2011 

          Manufacturer of Hoses, Fittings and Assemblies

                      

               

          12% Secured Debt (Maturity — March 20, 2023)

            6,376  6,376  6,376 

               

          Member Units (65,962 units)

               3,717  5,960 

                     10,093  12,336 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          NuStep, LLC

           January 31, 2017 

          Designer, Manufacturer and Distributor of Fitness Equipment

                      

               

          12% Secured Debt (Maturity — January 31, 2022)

            20,600  20,458  20,458 

               

          Preferred Member Units (406 units)

               10,200  10,200 

                     30,658  30,658 

                          

          OMi Holdings, Inc.

           April 1, 2008 

          Manufacturer of Overhead Cranes

                      

               

          Common Stock (1,500 shares)(8)

               1,080  16,020 

                          

          Pegasus Research Group, LLC

           January 6, 2011 

          Provider of Telemarketing and Data Services

                      

               

          Member Units (460 units)

               1,290  7,680 

                          

          PPL RVs, Inc.

           June 10, 2010 

          Recreational Vehicle Dealer

                      

               

          LIBOR Plus 7.00% (Floor 0.50%), Current Coupon 9.40%, Secured Debt (Maturity — November 15, 2021)(9)

            15,100  15,006  15,100 

               

          Common Stock (1,962 shares)(8)

               2,150  10,380 

                     17,156  25,480 

                          

          Principle Environmental, LLC (d/b/a TruHorizon Environmental Solutions)

           February 1, 2011 

          Noise Abatement Service Provider

                      

               

          13% Secured Debt (Maturity — April 30, 2020)

            7,477  7,398  7,477 

               

          Preferred Member Units (19,631 units)(8)

               4,600  13,090 

               

          Warrants (1,018 equivalent units; Expiration — January 31, 2021; Strike price — $0.01 per unit)

               1,200  780 

                     13,198  21,347 

                          

          Quality Lease Service, LLC

           June 8, 2015 

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

               

          Zero Coupon Secured Debt (Maturity — June 8, 2021)

            7,341  7,341  6,450 

               

          Member Units (1,000 units)

               4,043  3,809 

                     11,384  10,259 

                          

          River Aggregates, LLC

           March 30, 2011 

          Processor of Construction Aggregates

                      

               

          Zero Coupon Secured Debt (Maturity — June 30, 2018)(17)

            750  750  722 

               

          Member Units (1,150 units)

               1,150  4,610 

               

          Member Units (RA Properties, LLC) (1,500 units)

               369  2,930 

                     2,269  8,262 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2018
          (dollars in thousands)

          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Tedder Industries, LLC

           August 31, 2018 

          Manufacturer of Firearm Holsters and Accessories

                      

               

          12% Secured Debt (Maturity — August 31, 2020)

            480  480  480 

               

          12% Secured Debt (Maturity — August 31, 2023)

            16,400  16,246  16,246 

               

          Preferred Member Units (440 units)

               7,476  7,476 

                     24,202  24,202 

                          

          The MPI Group, LLC

           October 2, 2007 

          Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                      

               

          9% Secured Debt (Maturity — October 2, 2019)

            2,924  2,924  2,582 

               

          Series A Preferred Units (2,500 units)

               2,500  440 

               

          Warrants (1,424 equivalent units; Expiration — July 1, 2024; Strike price — $0.01 per unit)

               1,096   

               

          Member Units (MPI Real Estate Holdings, LLC) (100 units)(8)

               2,300  2,479 

                     8,820  5,501 

                          

          Vision Interests, Inc.

           June 5, 2007 

          Manufacturer / Installer of Commercial Signage

                      

               

          13% Secured Debt (Maturity — December 23, 2018)(17)

            2,153  2,153  2,153 

               

          Series A Preferred Stock (3,000,000 shares)

               3,000  3,740 

               

          Common Stock (1,126,242 shares)

               3,706  280 

                     8,859  6,173 

                          

          Ziegler's NYPD, LLC

           October 1, 2008 

          Casual Restaurant Group

                      

               

          6.5% Secured Debt (Maturity — October 1, 2019)

            1,000  998  1,000 

               

          12% Secured Debt (Maturity — October 1, 2019)

            425  425  425 

               

          14% Secured Debt (Maturity — October 1, 2019)

            2,750  2,750  2,750 

               

          Warrants (587 equivalent units; Expiration — October 1, 2019; Strike price — $0.01 per unit)

               600   

               

          Preferred Member Units (10,072 units)

               2,834  1,249 

                     7,607  5,424 

          Subtotal Control Investments (68.1% of net assets at fair value)

           $750,618 $1,004,993 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Affiliate Investments(6)

             

           

           

           

                    

                          

          AFG Capital Group, LLC

           November 7, 2014 

          Provider of Rent-to-Own Financing Solutions and Services

                      

               

          Warrants (42 equivalent units; Expiration — November 7, 2024; Strike price — $0.01 per unit)

              $259 $950 

               

          Preferred Member Units (186 units)(8)

               1,200  3,980 

                     1,459  4,930 

                          

          Barfly Ventures, LLC(10)

           August 31, 2015 

          Casual Restaurant Group

                      

               

          12% Secured Debt (Maturity — August 31, 2020)

            10,185  10,039  10,018 

               

          Options (3 equivalent units)

               607  940 

               

          Warrant (1 equivalent unit; Expiration — August 31, 2025; Strike price — $1.00 per unit)

               473  410 

                     11,119  11,368 

                          

          BBB Tank Services, LLC

           April 8, 2016 

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

                      

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 13.35%, (Maturity — April 8, 2021)(9)

            4,000  3,833  3,833 

               

          Preferred Stock (non-voting)

               113  113 

               

          Member Units (800,000 units)

               800  230 

                     4,746  4,176 

                          

          Boccella Precast Products LLC

           June 30, 2017 

          Manufacturer of Precast Hollow Core Concrete

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.40%, Secured Debt (Maturity — June 30, 2022)(9)

            15,724  15,512  15,724 

               

          Member Units (2,160,000 units)(8)

               2,160  5,080 

                     17,672  20,804 

                          

          Boss Industries, LLC

           July 1, 2014 

          Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                      

               

          Preferred Member Units (2,242 units)(8)

               2,246  6,176 

                          

          Bridge Capital Solutions Corporation

           April 18, 2012 

          Financial Services and Cash Flow Solutions Provider

                      

               

          13% Secured Debt (Maturity — July 25, 2021)

            7,500  6,221  6,221 

               

          Warrants (82 equivalent shares; Expiration — July 25, 2026; Strike price — $0.01 per share)

               2,132  4,020 

               

          13% Secured Debt (Mercury Service Group, LLC) (Maturity — July 25, 2021)

            1,000  994  1,000 

               

          Preferred Member Units (Mercury Service Group, LLC) (17,742 units)(8)

               1,000  1,000 

                     10,347  12,241 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Buca C, LLC

           June 30, 2015 

          Casual Restaurant Group

                      

               

          LIBOR Plus 9.25% (Floor 1.00%), Current Coupon 11.63%, Secured Debt (Maturity — June 30, 2020)(9)

            19,104  19,038  19,038 

               

          Preferred Member Units (6 units; 6% cumulative)(8)(19)

               4,431  4,431 

                     23,469  23,469 

                          

          CAI Software LLC

           October 10, 2014 

          Provider of Specialized Enterprise Resource Planning Software

                      

               

          12% Secured Debt (Maturity — December 7, 2023)

            10,880  10,763  10,880 

               

          Member Units (66,968 units)(8)

               751  2,717 

                     11,514  13,597 

                          

          Chandler Signs Holdings, LLC(10)

           January 4, 2016 

          Sign Manufacturer

                      

               

          12% Current / 1% PIK Secured Deb (Maturity — July 4, 2021)(19)

            4,546  4,522  4,546 

               

          Class A Units (1,500,000 units)(8)

               1,500  2,120 

                     6,022  6,666 

                          

          Charlotte Russe, Inc(11)

           May 28, 2013 

          Fast-Fashion Retailer to Young Women

                      

               

          8.50% Secured Debt (Maturity — February 2, 2023)

            7,932  7,932  3,930 

               

          Common Stock (19,041 shares)

               3,141   

                     11,073  3,930 

                          

          Condit Exhibits, LLC

           July 1, 2008 

          Tradeshow Exhibits / Custom Displays Provider

                      

               

          Member Units (3,936 units)(8)

               100  1,950 

                          

          Congruent Credit Opportunities Funds(12)(13)

           January 24, 2012 

          Investment Partnership

                      

               

          LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)

               5,210  855 

               

          LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

               16,959  17,468 

                     22,169  18,323 

                          

          Dos Rios Partners(12)(13)

           April 25, 2013 

          Investment Partnership

                      

               

          LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

               5,846  7,153 

               

          LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

               1,856  2,271 

                     7,702  9,424 

                          

          East Teak Fine Hardwoods, Inc.

           April 13, 2006 

          Distributor of Hardwood Products

                      

               

          Common Stock (6,250 shares)(8)

               480  560 

                          

          EIG Fund Investments(12)(13)

           November 6, 2015 

          Investment Partnership

                      

               

          LP Interests (EIG Global Private Debt Fund-A, L.P.) (Fully diluted 11.1%)(8)

               553  505 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Freeport Financial Funds(12)(13)

           June 13, 2013 

          Investment Partnership

                      

               

          LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.3%)(8)

               5,974  5,399 

               

          LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.0%)(8)

               11,155  10,980 

                     17,129  16,379 

                          

          Harris Preston Fund Investments(12)(13)

           August 9, 2017 

          Investment Partnership

                      

               

          LP Interests (HPEP 3, L.P.) (Fully diluted 8.2%)

               1,733  1,733 

                          

          Hawk Ridge Systems, LLC(13)

           December 2, 2016 

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

                      

               

          10.5% Secured Debt (Maturity — December 2, 2021)

            14,300  14,201  14,300 

               

          Preferred Member Units (226 units)(8)

               2,850  7,260 

               

          Preferred Member Units (HRS Services, ULC) (226 units)

               150  380 

                     17,201  21,940 

                          

          Houston Plating and Coatings, LLC

           January 8, 2003 

          Provider of Plating and Industrial Coating Services

                      

               

          8% Unsecured Convertible Debt (Maturity — May 1, 2022)

            3,000  3,000  3,720 

               

          Member Units (318,462 units)(8)

               2,236  8,330 

                     5,236  12,050 

                          

          I-45 SLF LLC(12)(13)

           October 20, 2015 

          Investment Partnership

                      

               

          Member Units (Fully diluted 20.0%; 24.4% profits interest)(8)

               16,200  15,627 

                          

          L.F. Manufacturing Holdings, LLC(10)

           December 23, 2013 

          Manufacturer of Fiberglass Products

                      

               

          Member Units (2,179,001 units)

               2,019  2,060 

                          

          Meisler Operating LLC

           June 7, 2017 

          Provider of Short-term Trailer and Container Rental

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.90%, Secured Debt (Maturity — June 7, 2022)(9)

            20,480  20,312  20,312 

               

          Member Units (Milton Meisler Holdings LLC) (48,555 units)

               4,855  5,780 

                     25,167  26,092 

                          

          OnAsset Intelligence, Inc.

           April 18, 2011 

          Provider of Transportation Monitoring / Tracking Products and Services

                      

               

          12% PIK Secured Debt (Maturity — June 30, 2021)(19)

            5,743  5,743  5,743 

               

          10% PIK Unsecured Debt (Maturity — June 30, 2021)(19)

            53  53  53 

               

          Preferred Stock (912 shares)

               1,981   

               

          Warrants (5,333 equivalent shares; Expiration — April 18, 2021; Strike price — $0.01 per share)

               1,919   

                     9,696  5,796 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          PCI Holding Company, Inc.

           December 18, 2012 

          Manufacturer of Industrial Gas Generating Systems

                      

               

          12% Current / 3% PIK Secured Debt (Maturity — March 31, 2019)(19)

            11,919  11,908  11,908 

               

          Preferred Stock (1,740,000 shares) (non-voting)

               1,740  3,480 

               

          Preferred Stock (1,500,000 shares)

               3,927  340 

                     17,575  15,728 

                          

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           January 8, 2013 

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

               

          12% Secured Debt (Maturity — January 8, 2018)(14)(15)

            30,785  30,281  250 

               

          Preferred Member Units (250 units)

               2,500   

                     32,781  250 

                          

          Salado Stone Holdings, LLC(10)

           June 27, 2016 

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

                      

               

          Class A Preferred Units (Salado Acquisition, LLC) (2,000,000 units)(8)

               2,000  1,040 

                          

          SI East, LLC

           August 31, 2018 

          Rigid Industrial Packaging Manufacturing

                      

               

          10.25% Current, Secured Debt (Maturity — August 31, 2023)

            35,250  34,885  34,885 

               

          Preferred Member Units (157 units)

               6,000  6,000 

                     40,885  40,885 

                          

          Slick Innovations, LLC

           September 13, 2018 

          Text Message Marketing Platform

                      

               

          14% Current, Secured Debt (Maturity — September 13, 2023)

            7,200  6,959  6,959 

               

          Member Units (70,000 units)

               700  700 

               

          Warrants (18,084 equivalent units; Expiration — September 13, 2028; Strike price — $0.01 per unit)

               181  181 

                     7,840  7,840 

                          

          UniTek Global Services, Inc.(11)

           April 15, 2011 

          Provider of Outsourced Infrastructure Services

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 8.01%, Secured Debt (Maturity — August 20, 2024)(9)

            2,993  2,969  2,969 

               

          Preferred Stock (1,521,122 shares; 19% cumulative)(8)(19)

               1,637  1,637 

               

          Preferred Stock (2,281,682 shares; 19% cumulative)(8)(19)

               3,038  3,038 

               

          Preferred Stock (4,336,866 shares; 13.5% cumulative)(8)(19)

               7,413  7,413 

               

          Common Stock (945,507 shares)

                 1,420 

                     15,057  16,477 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Universal Wellhead Services Holdings, LLC(10)

           October 30, 2014 

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                      

               

          Preferred Member Units (UWS Investments, LLC) (716,949 units; 14% cumulative)(8)(19)

               837  950 

               

          Member Units (UWS Investments, LLC) (4,000,000 units)

               4,000  2,330 

                     4,837  3,280 

                          

          Volusion, LLC

           January 26, 2015 

          Provider of Online Software-as-a-Service eCommerce Solutions

                      

               

          11.5% Secured Debt (Maturity — January 26, 2020)

            19,272  18,407  18,407 

               

          8% Unsecured Convertible Debt (Maturity — November 16, 2023)

            297  297  297 

               

          Preferred Member Units (4,876,670 units)

               14,000  14,000 

               

          Warrants (1,831,355 equivalent units; Expiration — January 26, 2025; Strike price — $0.01 per unit)

               2,576  1,890 

                     35,280  34,594 

          Subtotal Affiliate Investments (24.4% of net assets at fair value)

              $381,307 $359,890 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Non-Control/Non-Affiliate Investments(7)

           

           

                    

                          

          AAC Holdings, Inc.(11)

           June 30, 2017 

          Substance Abuse Treatment Service Provider

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.28%, Secured Debt (Maturity — June 30, 2023)(9)

           $14,500 $14,245 $14,246 

                          

          Adams Publishing Group, LLC(10)

           November 19, 2015 

          Local Newspaper Operator

                      

               

          Prime Plus 4.00% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — July 3, 2023)(9)

            4,250  4,160  4,160 

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.93%, Secured Debt (Maturity — July 3, 2023)(9)

            8,108  7,956  7,956 

                     12,116  12,116 

                          

          ADS Tactical, Inc.(10)

           March 7, 2017 

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

                      

               

          LIBOR Plus 6.25% (Floor 0.75%), Current Coupon 8.77%, Secured Debt (Maturity — July 26, 2023)(9)

            16,416  16,263  15,306 

                          

          Aethon United BR LP(10)

           September 8, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.14%, Secured Debt (Maturity — September 8, 2023)(9)

            4,063  4,011  3,817 

                          

          Allen Media, LLC.(11)

           September 18, 2018 

          Operator of Cable Television Networks

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.21%, Secured Debt (Maturity — August 30, 2023)(9)

            17,143  16,670  16,800 

                          

          Allflex Holdings III Inc.(11)

           July 18, 2013 

          Manufacturer of Livestock Identification Products

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.48%, Secured Debt (Maturity — July 19, 2021)(9)

            13,120  13,077  13,013 

                          

          American Nuts, LLC(10)

           April 10, 2018 

          Roaster, Mixer and Packager of Bulk Nuts and Seeds

                      

               

          LIBOR Plus 8.50% (Floor 1.00%) PIK, 9.50% PIK Secured Debt, (Maturity — April 10, 2023)(9)(19)

            1,127  1,115  1,115 

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.90%, Secured Debt (Maturity — April 10, 2023)(9)

            11,194  11,000  10,475 

                     12,115  11,590 

                          

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          American Scaffold Holdings, Inc.(10)

           June 14, 2016 

          Marine Scaffolding Service Provider

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.30%, Secured Debt (Maturity — March 31, 2022)(9)

            6,656  6,592  6,623 

                          

          American Teleconferencing Services, Ltd.(11)

           May 19, 2016 

          Provider of Audio Conferencing and Video Collaboration Solutions

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.09%, Secured Debt (Maturity — December 8, 2021)(9)

            15,940  15,186  13,310 

                          

          Apex Linen Service, Inc.

           October 30, 2015 

          Industrial Launderers

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 11.35%, Secured Debt (Maturity — October 30, 2022)(9)

            2,400  2,400  2,400 

               

          16% Secured Debt (Maturity — October 30, 2022)

            14,416  14,357  14,357 

                     16,757  16,757 

                          

          APTIM Corp.(11)

           August 17, 2018 

          Engineering, Construction & Procurement

                      

               

          7.75% Secured Debt (Maturity — June 15, 2025)

            12,452  10,633  9,464 

                          

          Arcus Hunting LLC(10)

           January 6, 2015 

          Manufacturer of Bowhunting and Archery Products and Accessories

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.40%, Secured Debt (Maturity — November 13, 2019)(9)

            15,394  15,351  15,394 

                          

          Arise Holdings, Inc.(10)

           March 12, 2018 

          Tech-Enabled Business Process Outsourcing

                      

               

          Preferred Stock (1,000,000 shares)

               1,000  1,704 

                          

          ASC Ortho Management Company, LLC(10)

           August 31, 2018 

          Provider of Orthopedic Services

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.90%, Secured Debt (Maturity — August 31, 2023)(9)

            4,660  4,559  4,559 

               

          13.25% PIK Secured Debt (Maturity — December 1, 2023)(19)

            1,624  1,587  1,587 

                     6,146  6,146 

                          

          ATI Investment Sub, Inc.(11)

           July 11, 2016 

          Manufacturer of Solar Tracking Systems

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 9.76%, Secured Debt (Maturity — June 22, 2021)(9)

            4,385  4,346  3,943 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          ATX Networks Corp.(11)(13)(21)

           June 30, 2015 

          Provider of Radio Frequency Management Equipment

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.39% / 1.00% PIK, Current Coupon Plus PIK 9.39%, Secured Debt (Maturity — June 11, 2021)(9)(19)

            14,121  13,844  13,415 

                          

          Berry Aviation, Inc.(10)

           July 6, 2018 

          Charter Airline Services

                      

               

          10.50% Current / 1.5% PIK, Secured Debt (Maturity — January 6, 2024)(19)

            4,485  4,443  4,443 

               

          Preferred Member Units (Berry Acquisition, LLC) (1,548,387 units; 8% cumulative)(8)(19)

               1,609  1,609 

                     6,052  6,052 

                          

          BigName Commerce, LLC(10)

           May 11, 2017 

          Provider of Envelopes and Complimentary Stationery Products

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 9.65%, Secured Debt (Maturity — May 11, 2022)(9)

            2,462  2,440  2,369 

                          

          Binswanger Enterprises, LLC(10)

           March 10, 2017 

          Glass Repair and Installation Service Provider

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.74%, Secured Debt (Maturity — March 9, 2022)(9)

            14,368  14,169  13,743 

               

          Member Units (1,050,000 units)

               1,050  1,330 

                     15,219  15,073 

                          

          Bluestem Brands, Inc.(11)

           December 19, 2013 

          Multi-Channel Retailer of General Merchandise

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 10.02%, Secured Debt (Maturity — November 6, 2020)(9)

            11,375  11,262  7,356 

                          

          Brainworks Software, LLC(10)

           August 12, 2014 

          Advertising Sales and Newspaper Circulation Software

                      

               

          Prime Plus 9.25% (Floor 3.25%), Current Coupon 14.70%, Secured Debt (Maturity — July 22, 2019)(9)

            6,733  6,723  6,590 

                          

          Brightwood Capital Fund Investments(12)(13)

           July 21, 2014 

          Investment Partnership

                      

               

          LP Interests (Brightwood Capital Fund III, LP) (Fully diluted 1.6%)(8)

               12,000  10,264 

               

          LP Interests (Brightwood Capital Fund IV, LP) (Fully diluted 0.6%)(8)

               2,000  2,063 

                     14,000  12,327 

                          

          Cadence Aerospace LLC(10)

           November 14, 2017 

          Aerostructure Manufacturing

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.06%, Secured Debt (Maturity — November 14, 2023)(9)

            19,470  19,301  18,244 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          California Pizza Kitchen, Inc.(11)

           August 29, 2016 

          Casual Restaurant Group

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.53%, Secured Debt (Maturity — August 23, 2022)(9)

            12,739  12,707  12,389 

                          

          Central Security Group, Inc.(11)

           December 4, 2017 

          Security Alarm Monitoring Service Provider

                      

               

          LIBOR Plus 5.63% (Floor 1.00%), Current Coupon 8.15%, Secured Debt (Maturity — October 6, 2021)(9)

            13,884  13,821  13,867 

                          

          Cenveo Corporation(11)

           September 4, 2015 

          Provider of Digital Marketing Agency Services

                      

               

          Libor Plus 9.00% (Floor 1.00%), Current Coupon 11.54%, Secured Debt (Maturity — June 7, 2023)(9)

            6,370  6,128  6,048 

               

          Common Stock (177,130 shares)

               5,309  2,746 

                     11,437  8,794 

                          

          Clarius BIGS, LLC(10)

           September 23, 2014 

          Prints & Advertising Film Financing

                      

               

          15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

            2,908  2,908  44 

                          

          Clickbooth.com, LLC(10)

           December 5, 2017 

          Provider of Digital Advertising Performance Marketing Solutions

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.90%, Secured Debt (Maturity — December 5, 2022)(9)

            2,925  2,876  2,750 

                          

          Construction Supply Investments, LLC(10)

           December 29, 2016 

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.62%, Secured Debt (Maturity — June 30, 2023)(9)

            15,423  15,355  15,384 

               

          Member Units (42,207 units)

               4,221  4,290 

                     19,576  19,674 

                          

          CTVSH, PLLC(10)

           August 3, 2017 

          Emergency Care and Specialty Service Animal Hospital

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.74%, Secured Debt (Maturity — August 3, 2022)(9)

            11,250  11,163  10,939 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Darr Equipment LP(10)

           April 15, 2014 

          Heavy Equipment Dealer

                      

               

          11.5% Current / 1% PIK Secured Debt (Maturity - June 22, 2023)(19)

            5,839  5,839  5,723 

               

          Warrants (915,734 equivalent units; Expiration — December 23, 2023; Strike price — $1.50 per unit)

               474  60 

                     6,313  5,783 

                          

          Digital River, Inc.(11)

           February 24, 2015 

          Provider of Outsourced e-Commerce Solutions and Services

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.78%, Secured Debt (Maturity — February 12, 2021)(9)

            10,146  10,074  10,044 

                          

          DTE Enterprises, LLC(10)

           April 13, 2018 

          Industrial Powertrain Repair and Services

                      

               

          LIBOR Plus 7.50% (Floor 1.50%), Current Coupon 10.12%, Secured Debt (Maturity — April 13, 2023)(9)

            12,492  12,260  11,580 

               

          Class AA Preferred Member Units (non-voting; 10% cumulative)(8)(19)

               778  778 

               

          Class A Preferred Member Units (776,316 units)(8)

               776  1,300 

                     13,814  13,658 

                          

          Dynamic Communities, LLC(10)

           July 17, 2018 

          Developer of Business Events and Online Community Groups

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.80%, Secured Debt (Maturity — July 17, 2023)(9)

            5,600  5,495  5,495 

                          

          Elite SEM INC.(10)

           August 31, 2018 

          Provider of Digital Marketing Agency Services

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 11.27%, Secured Debt (Maturity — February 1, 2022)(9)(23)

            6,875  6,750  6,750 

                          

          EnCap Energy Fund Investments(12)(13)

           December 28, 2010 

          Investment Partnership

                      

               

          LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

               3,661  2,003 

               

          LP Interests (EnCap Energy Capital Fund VIII Co- Investors, L.P.) (Fully diluted 0.4%)(8)

               2,103  1,153 

               

          LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

               4,430  3,784 

               

          LP Interests (EnCap Energy Capital Fund X, L.P.) (Fully diluted 0.1%)(8)

               7,629  7,692 

               

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.) (Fully diluted 0.8%)(8)

               5,881  4,538 

               

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.) (Fully diluted 0.2%)(8)

               5,423  5,051 

                     29,127  24,221 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Encino Acquisition Partners Holdings, Inc.(11)

           November 16, 2018 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.27%, Secured Debt (Maturity — October 29, 2025)(9)

            9,000  8,911  8,595 

                          

          EPIC Y-Grade Services, LP(11)

           June 22, 2018 

          NGL Transportation & Storage

                      

               

          LIBOR Plus 5.50%, Current Coupon 8.02%, Secured Debt (Maturity — June 13, 2024)

            17,500  17,175  16,625 

                          

          Evergreen Skills Lux S.á r.l. (d/b/a Skillsoft)(11)(13)

           May 5, 2014 

          Technology-based Performance Support Solutions

                      

               

          LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 10.77%, Secured Debt (Maturity — April 28, 2022)(9)

            6,999  6,901  3,931 

                          

          Extreme Reach, Inc.(11)

           March 31, 2015 

          Integrated TV and Video Advertising Platform

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 8.78%, Secured Debt (Maturity — February 7, 2020)(9)

            16,460  16,451  16,371 

                          

          Felix Investments Holdings II(10)

           August 9, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.10%, Secured Debt (Maturity — August 9, 2022)(9)

            3,333  3,279  3,141 

                          

          Flavors Holdings Inc.(11)

           October 15, 2014 

          Global Provider of Flavoring and Sweetening Products

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 8.55%, Secured Debt (Maturity — April 3, 2020)(9)

            12,295  12,044  11,434 

                          

          GeoStabilization International (GSI)(11)

           December 31, 2018 

          Geohazard Engineering Services & Maintenance

                      

               

          LIBOR Plus 5.50%, Current Coupon 8.09%, Secured Debt (Maturity — December 19, 2025)

            16,500  16,335  16,418 

                          

          GI KBS Merger Sub LLC(11)

           November 10, 2014 

          Outsourced Janitorial Service Provider

                      

               

          LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 7.43%, Secured Debt (Maturity — October 29, 2021)(9)

            9,195  9,139  9,207 

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 11.02%, Secured Debt (Maturity — April 29, 2022)(9)

            3,915  3,797  3,949 

                     12,936  13,156 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Good Source Solutions, Inc.(10)

           October 23, 2018 

          Specialized Food Distributor

                      

               

          LIBOR Plus 8.34% (Floor 1.00%), Current Coupon 11.14%, Secured Debt (Maturity — June 29, 2023)(9)(23)

            5,000  4,952  4,952 

                          

          GoWireless Holdings, Inc.(11)

           December 31, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 9.02%, Secured Debt (Maturity — December 22, 2024)(9)

            17,325  17,170  16,856 

                          

          Grupo Hima San Pablo, Inc.(11)

           March 7, 2013 

          Tertiary Care Hospitals

                      

               

          LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 9.52%, Secured Debt (Maturity — January 31, 2019)(9)

            4,688  4,688  3,629 

               

          13.75% Secured Debt (Maturity — October 15, 2018)(17)

            2,055  2,040  226 

                     6,728  3,855 

                          

          HDC/HW Intermediate Holdings(10)

           December 21, 2018 

          Managed Services and Hosting Provider

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 10.29%, Secured Debt (Maturity — December 21, 2023)(9)

            3,201  3,132  3,132 

                          

          Hoover Group, Inc.(10)(13)

           October 21, 2016 

          Provider of Storage Tanks and Related Products to the Energy and Petrochemical Markets

                      

               

          LIBOR Plus 6.00%, Current Coupon 8.71%, Secured Debt (Maturity — January 28, 2020)

            5,250  4,803  4,771 

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 9.90%, Secured Debt (Maturity — January 28, 2021)(9)

            9,395  9,053  8,831 

                     13,856  13,602 

                          

          Hunter Defense Technologies, Inc.(10)

           March 29, 2018 

          Provider of Military and Commercial Shelters and Systems

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.80%, Secured Debt (Maturity — March 29, 2023)(9)

            16,080  15,757  15,077 

                          

          Hydrofarm Holdings LLC(10)

           May 18, 2017 

          Wholesaler of Horticultural Products

                      

               

          LIBOR Plus 10.00%, Current Coupon 3.69% / 8.61% PIK, Current Coupon Plus PIK 12.30% Secured Debt (Maturity — May 12, 2022)(19)

            7,235  7,139  5,660 

                          

          iEnergizer Limited(11)(13)(21)

           May 8, 2013 

          Provider of Business Outsourcing Solutions

                      

               

          LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 8.53%, Secured Debt (Maturity — May 1, 2019)(9)

            14,100  14,052  14,117 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Implus Footcare, LLC(10)

           June 1, 2017 

          Provider of Footwear and Related Accessories

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.55%, Secured Debt (Maturity — April 30, 2021)(9)

            18,819  18,629  18,390 

                          

          Independent Pet Partners Intermediate Holdings, LLC(10)

           November 20, 2018 

          Omnichannel Retailer of Specialty Pet Products

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 11.90%, Secured Debt (Maturity — November 19, 2023)(9)

            2,078  2,037  2,037 

               

          Member Units (1,558,333 units)

               1,558  1,558 

                     3,595  3,595 

                          

          Industrial Services Acquisition, LLC(10)

           June 17, 2016 

          Industrial Cleaning Services

                      

               

          6% Current / 7% PIK Unsecured Debt (Maturity — December 17, 2022)(19)

            4,885  4,822  4,470 

               

          Preferred Member Units (Industrial Services Investments, LLC) (144 units; 10% cumulative)(8)(19)

               94  94 

               

          Member Units (Industrial Services Investments, LLC) (900 units)

               900  210 

                     5,816  4,774 

                          

          Inn of the Mountain Gods Resort and Casino(11)

           October 30, 2013 

          Hotel & Casino Owner & Operator

                      

               

          9.25% Secured Debt (Maturity — November 30, 2020)

            7,832  7,479  7,480 

                          

          Intermedia Holdings, Inc.(11)

           August 3, 2018 

          Unified Communications as a Service

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.52%, Secured Debt (Maturity — July 19, 2025)(9)

            11,571  11,461  11,557 

                          

          irth Solutions, LLC

           December 29, 2010 

          Provider of Damage Prevention Information Technology Services

                      

               

          Member Units (27,893 units)

               1,441  2,830 

                          

          Isagenix International, LLC(11)

           June 21, 2018 

          Direct Marketer of Health & Wellness Products

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 8.55%, Secured Debt (Maturity — June 14, 2025)(9)

            6,268  6,208  6,095 

                          

          JAB Wireless, Inc.(10)

           May 2, 2018 

          Fixed Wireless Broadband Provider

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.39%, Secured Debt (Maturity — May 2, 2023)(9)

            14,888  14,754  13,987 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Jacent Strategic Merchandising, LLC(10)

           September 16, 2015 

          General Merchandise Distribution

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 10.27%, Secured Debt (Maturity — September 16, 2020)(9)

            10,740  10,705  10,740 

                          

          Jackmont Hospitality, Inc.(10)

           May 26, 2015 

          Franchisee of Casual Dining Restaurants

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.26%, Secured Debt (Maturity — May 26, 2021)(9)

            4,165  4,157  4,165 

                          

          Jacuzzi Brands LLC(11)

           June 30, 2017 

          Manufacturer of Bath and Spa Products

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.52%, Secured Debt (Maturity — June 28, 2023)(9)

            3,850  3,788  3,831 

                          

          Joerns Healthcare, LLC(11)

           April 3, 2013 

          Manufacturer and Distributor of Health Care Equipment & Supplies

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.71% Secured Debt (Maturity — May 9, 2020)(9)

            13,387  13,335  11,998 

                          

          Kore Wireless Group Inc.(11)

           December 31, 2018 

          Mission Critical Software Platform

                      

               

          LIBOR Plus 5.50%, Current Coupon 8.29%, Secured Debt (Maturity — December 20, 2024)

            6,667  6,600  6,631 

                          

          Larchmont Resources, LLC(11)

           August 13, 2013 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 9.00% (Floor 1.00%) PIK, 11.77% PIK Secured Debt, (Maturity — August 7, 2020)(9)(19)

            2,312  2,312  2,266 

               

          Member Units (Larchmont Intermediate Holdco, LLC) (2,828 units)

               353  707 

                     2,665  2,973 

                          

          LKCM Headwater Investments I, L.P.(12)(13)

           January 25, 2013 

          Investment Partnership

                      

               

          LP Interests (Fully diluted 2.3%)(8)

               1,780  3,501 

                          

          Logix Acquisition Company, LLC(10)

           June 24, 2016 

          Competitive Local Exchange Carrier

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 8.27%, Secured Debt (Maturity — December 22, 2024)(9)

            12,927  12,725  12,797 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Looking Glass Investments, LLC(12)(13)

           July 1, 2015 

          Specialty Consumer Finance

                      

               

          Member Units (2.5 units)

               125  57 

               

          Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

               49  33 

                     174  90 

                          

          LSF9 Atlantis Holdings, LLC(11)

           May 17, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.38%, Secured Debt (Maturity — May 1, 2023)(9)

            9,710  9,694  9,269 

                          

          Lulu's Fashion Lounge, LLC(10)

           August 31, 2017 

          Fast Fashion E-Commerce Retailer

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.52%, Secured Debt (Maturity — August 28, 2022)(9)

            12,358  12,060  11,987 

                          

          MHVC Acquisition Corp.(11)

           May 8, 2017 

          Provider of differentiated information solutions, systems engineering, and analytics

                      

               

          LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 8.06%, Secured Debt (Maturity — April 29, 2024)(9)

            15,475  15,442  15,088 

                          

          Mills Fleet Farm Group, LLC(10)

           October 24, 2018 

          Omnichannel Retailer of Work, Farm and Lifestyle Merchandise

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 8.77%, Secured Debt (Maturity — October 24, 2024)(9)

            15,000  14,707  15,000 

                          

          Mobileum(10)

           October 23, 2018 

          Provider of big data analytics to telecom service providers

                      

               

          LIBOR Plus 10.25% (Floor 0.75%), Current Coupon 13.06%, Secured Debt (Maturity — May 1, 2022)(9)

            7,500  7,429  7,429 

                          

          NBG Acquisition Inc(11)

           April 28, 2017 

          Wholesaler of Home Décor Products

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 8.09%, Secured Debt (Maturity — April 26, 2024)(9)

            4,292  4,235  4,184 

                          

          New Era Technology, Inc.(10)

           June 30, 2018 

          Managed Services and Hosting Provider

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.99%, Secured Debt (Maturity — June 22, 2023)(9)

            7,654  7,526  7,616 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          New Media Holdings II LLC(11)(13)

           June 10, 2014 

          Local Newspaper Operator

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 8.77%, Secured Debt (Maturity — July 14, 2022)(9)

            21,125  20,797  20,967 

                          

          NNE Partners, LLC(10)

           March 2, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 8.00%, Current Coupon 10.74%, Secured Debt (Maturity — March 2, 2022)

            20,417  20,260  19,572 

                          

          North American Lifting Holdings, Inc.(11)

           February 26, 2015 

          Crane Service Provider

                      

               

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 7.30%, Secured Debt (Maturity — November 27, 2020)(9)

            7,664  7,093  6,997 

                          

          Novetta Solutions, LLC(11)

           June 21, 2017 

          Provider of Advanced Analytics Solutions for Defense Agencies

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 7.53%, Secured Debt (Maturity — October 17, 2022)(9)

            15,478  15,091  15,091 

                          

          NTM Acquisition Corp.(11)

           July 12, 2016 

          Provider of B2B Travel Information Content

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 8.96%, Secured Debt (Maturity — June 7, 2022)(9)

            4,419  4,396  4,375 

                          

          Ospemifene Royalty Sub LLC (QuatRx)(10)

           July 8, 2013 

          Estrogen-Deficiency Drug Manufacturer and Distributor

                      

               

          11.5% Secured Debt (Maturity — November 15, 2026)(14)

            4,975  4,975  937 

                          

          Permian Holdco 2, Inc.(11)

           February 12, 2013 

          Storage Tank Manufacturer

                      

               

          14% PIK Unsecured Debt (Maturity — October 15, 2021)(19)

            396  396  396 

               

          Preferred Stock (Permian Holdco 1, Inc.) (154,558 units)

               799  920 

                     1,195  1,316 

                          

          Pernix Therapeutics Holdings, Inc.(10)

           August 18, 2014 

          Pharmaceutical Royalty

                      

               

          12% Secured Debt (Maturity — August 1, 2020)

            3,031  3,031  2,037 

                          

          Pier 1 Imports, Inc.(11)

           February 20, 2018 

          Decorative Home Furnishings Retailer

                      

               

          LIBOR Plus 3.50% (Floor 1.00%), Current Coupon 6.38%, Secured Debt (Maturity — April 30, 2021)(9)

            9,736  9,152  6,998 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Point.360(10)

           July 8, 2015 

          Fully Integrated Provider of Digital Media Services

                      

               

          Warrants (65,463 equivalent shares; Expiration — July 7, 2020; Strike price — $0.75 per share)

               69   

               

          Common Stock (163,658 shares)

               273  5 

                     342  5 

                          

          PricewaterhouseCoopers Public Sector LLP(11)

           May 24, 2018 

          Provider of Consulting Services to Governments

                      

               

          LIBOR Plus 7.50%, Current Coupon 9.74%, Secured Debt (Maturity — May 1, 2026)

            8,000  7,962  8,040 

                          

          Prowler Acquisition Corp.(11)

           February 11, 2014 

          Specialty Distributor to the Energy Sector

                      

               

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 7.30%, Secured Debt (Maturity — January 28, 2020)(9)

            20,028  19,122  19,727 

                          

          PT Network, LLC(10)

           November 1, 2013 

          Provider of Outpatient Physical Therapy and Sports Medicine Services

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.99%, Secured Debt (Maturity — November 30, 2021)(9)

            8,732  8,732  8,619 

                          

          Research Now Group, Inc. and Survey Sampling International, LLC(11)

           December 31, 2017 

          Provider of Outsourced Online Surveying

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 8.02%, Secured Debt (Maturity — December 20, 2024)(9)

            15,360  14,757  15,110 

                          

          Resolute Industrial, LLC(10)

           July 26, 2017 

          HVAC Equipment Rental and Remanufacturing

                      

               

          Member Units (601 units)

               750  920 

                          

          RM Bidder, LLC(10)

           November 12, 2015 

          Scripted and Unscripted TV and Digital Programming Provider

                      

               

          Warrants (327,532 equivalent units; Expiration — October 20, 2025; Strike price — $14.28 per unit)

               425   

               

          Member Units (2,779 units)

               46  11 

                     471  11 

                          

          SAFETY Investment Holdings, LLC

           April 29, 2016 

          Provider of Intelligent Driver Record Monitoring Software and Services

                      

               

          Member Units (2,000,000 units)

               2,000  1,820 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Salient Partners L.P.(11)

           June 25, 2015 

          Provider of Asset Management Services

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 8.27%, Secured Debt (Maturity — June 9, 2021)(9)

            7,313  7,280  7,280 

                          

          SiTV, LLC(11)

           September 26, 2017 

          Cable Networks Operator

                      

               

          10.375% Secured Debt (Maturity — July 1, 2019)

            10,429  7,196  3,911 

                          

          SMART Modular Technologies, Inc.(10)(13)

           August 18, 2017 

          Provider of Specialty Memory Solutions

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 8.86%, Secured Debt (Maturity — August 9, 2022)(9)

            19,000  18,793  19,095 

                          

          Sorenson Communications, Inc.(11)

           June 7, 2016 

          Manufacturer of Communication Products for Hearing Impaired

                      

               

          LIBOR Plus 5.75% (Floor 2.25%), Current Coupon 8.56%, Secured Debt (Maturity — April 30, 2020)(9)

            13,097  13,059  13,048 

                          

          Staples Canada ULC(10)(13)(21)

           September 14, 2017 

          Office Supplies Retailer

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 9.26%, Secured Debt (Maturity — September 12, 2023)(9)(22)

            16,867  16,589  14,026 

                          

          STL Parent Corp.(10)

           December 14, 2018 

          Manufacturer and Servicer of Tank and Hopper Railcars

                      

               

          LIBOR Plus 7.00%, Current Coupon 9.52%, Secured Debt (Maturity — December 5, 2022)

            15,000  14,475  14,475 

                          

          Strike, LLC(11)

           December 12, 2016 

          Pipeline Construction and Maintenance Services

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 10.59%, Secured Debt (Maturity — November 30, 2022)(9)

            9,000  8,797  9,011 

                          

          TE Holdings, LLC(11)

           December 5, 2013 

          Oil & Gas Exploration & Production

                      

               

          Member Units (97,048 units)

               970  66 

                          

          Tectonic Holdings, LLC

           May 15, 2017 

          Financial Services Organization

                      

               

          Member Units (200,000 units)(8)

               2,000  2,420 

                          

          TeleGuam Holdings, LLC(11)

           June 26, 2013 

          Cable and Telecom Services Provider

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 11.02%, Secured Debt (Maturity — April 12, 2024)(9)

            7,750  7,620  7,798 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          TGP Holdings III LLC(11)

           September 30, 2017 

          Outdoor Cooking & Accessories

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 11.30%, Secured Debt (Maturity — September 25, 2025)(9)

            5,500  5,433  5,335 

                          

          The Pasha Group(11)

           February 2, 2018 

          Diversified Logistics and Transportation Provided

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 10.06%, Secured Debt (Maturity — January 26, 2023)(9)

            10,938  10,655  11,006 

                          

          TMC Merger Sub Corp.(11)

           December 22, 2016 

          Refractory & Maintenance Services Provider

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 9.31%, Secured Debt (Maturity — October 31, 2022)(9)(24)

            17,207  17,014  17,121 

                          

          TOMS Shoes, LLC(11)

           November 13, 2014 

          Global Designer, Distributor, and Retailer of Casual Footwear

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 8.30%, Secured Debt (Maturity — October 30, 2020)(9)

            4,813  4,635  3,798 

                          

          Turning Point Brands, Inc.(10)(13)

           February 17, 2017 

          Marketer/Distributor of Tobacco Products

                      

               

          LIBOR Plus 7.00%, Current Coupon 9.46%, Secured Debt (Maturity — March 7, 2024)

            8,500  8,424  8,585 

                          

          TVG-I-E CMN ACQUISITION, LLC(10)

           November 3, 2016 

          Organic Lead Generation for Online Postsecondary Schools

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.52%, Secured Debt (Maturity — November 3, 2021)(9)

            19,503  19,191  19,454 

                          

          U.S. TelePacific Corp.(11)

           September 14, 2016 

          Provider of Communications and Managed Services

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 7.80%, Secured Debt (Maturity — May 2, 2023)(9)

            18,491  18,344  17,363 

                          

          VIP Cinema Holdings, Inc.(11)

           March 9, 2017 

          Supplier of Luxury Seating to the Cinema Industry

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.53%, Secured Debt (Maturity — March 1, 2023)(9)

            10,494  10,451  10,304 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          Portfolio Company(1)(20)
           Investment Date(26)
           Business Description
           Type of Investment(2)(3)(25)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Vistar Media, Inc.(10)

           February 17, 2017 

          Operator of Digital Out-of-Home Advertising Platform

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 12.74%, Secured Debt (Maturity — February 16, 2022)(9)

            3,263  3,048  2,987 

               

          Warrants (70,207 equivalent shares; Expiration — February 17, 2027; Strike price — $0.01 per share)

               331  790 

                     3,379  3,777 

                          

          Wireless Vision Holdings, LLC(10)

           September 29, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 8.91% (Floor 1.00%), Current Coupon 11.41%, Secured Debt (Maturity — September 29, 2022)(9)(28)

            14,279  14,055  13,414 

                          

          YS Garments, LLC(11)

           August 22, 2018 

          Designer and Provider of Branded Activewear

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 8.42% Secured Debt (Maturity — August 9, 2024)(9)

            14,906  14,764  14,756 

                          

          Zilliant Incorporated

           June 15, 2012 

          Price Optimization and Margin Management Solutions

                      

               

          Preferred Stock (186,777 shares)

               154  260 

               

          Warrants (952,500 equivalent shares; Expiration — June 15, 2022; Strike price — $0.001 per share)

               1,071  1,189 

                     1,225  1,449 

          Subtotal Non-Control/Non-Affiliate Investments (73.8% of net assets at fair value)

              $1,137,108 $1,089,026 

          Total Portfolio Investments, December 31, 2018

              $2,269,033 $2,453,909 

          (1)
          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)
          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)
          See Note C for a summary of geographic location of portfolio companies.

          (4)
          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)
          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)
          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

          (7)
          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)
          Income producing through dividends or distributions.

          (9)
          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2018. As noted in this schedule, 64% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.03%.

          (10)
          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2018
          (dollars in thousands)
          (unaudited)

          (11)
          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)
          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)
          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)
          Non-accrual and non-income producing investment.

          (15)
          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

          (16)
          External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)
          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)
          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)
          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)
          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)
          Portfolio company headquarters are located outside of the United States.

          (22)
          In connection with the Company's debt investment in Staples Canada ULC to help mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company has a forward foreign currency contract with Cadence Bank to lend $20.4 million Canadian Dollars and receive $15.7 million U.S. Dollars with a settlement date of September 12, 2019. The unrealized appreciation on the forward foreign currency contract is $0.6 million as of December 31, 2018.

          (23)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 6.00% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)
          The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than the contractual stated interest rate of LIBOR plus 6.64% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such lower rate.

          (25)
          All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities."

          (26)
          Investment date represents the date of initial investment in the portfolio company.

          (27)
          Investment has an unfunded commitment as of December 31, 2018 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments

          (28)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Control Investments(5)

             

           

           

           

                    

                          

          Access Media Holdings, LLC(10)

           July 22, 2015 

          Private Cable Operator

                      

               

          5% Current / 5% PIK Secured Debt (Maturity — July 22, 2020)(19)

           $23,828 $23,828 $17,150 

               

          Preferred Member Units (8,248,500 units)

               8,142   

               

          Member Units (45 units)

               1   

                     31,971  17,150 

                          

          ASC Interests, LLC

           August 1, 2013 

          Recreational and Educational Shooting Facility

                      

               

          11% Secured Debt (Maturity — July 31, 2018)

            1,800  1,795  1,795 

               

          Member Units (1,500 units)

               1,500  1,530 

                     3,295  3,325 

                          

          ATS Workholding, LLC(10)

           March 10, 2014 

          Manufacturer of Machine Cutting Tools and Accessories

                      

               

          5% Secured Debt (Maturity — November 16, 2021)

            3,726  3,249  3,249 

               

          Preferred Member Units (3,725,862 units)

               3,726  3,726 

                     6,975  6,975 

                          

          Bond-Coat, Inc.

           December 28, 2012 

          Casing and Tubing Coating Services

                      

               

          12% Secured Debt (Maturity — December 28, 2017)(17)

            11,596  11,596  11,596 

               

          Common Stock (57,508 shares)

               6,350  9,370 

                     17,946  20,966 

                          

          Café Brazil, LLC

           April 20, 2004 

          Casual Restaurant Group

                      

               

          Member Units (1,233 units)(8)

               1,742  4,900 

                          

          CBT Nuggets, LLC

           June 1, 2006 

          Produces and Sells IT Training Certification Videos

                      

               

          Member Units (416 units)(8)

               1,300  89,560 

                          

          Charps, LLC

           February 3, 2017 

          Pipeline Maintenance and Construction

                      

               

          12% Secured Debt (Maturity — February 3, 2022)

            18,400  18,225  18,225 

               

          Preferred Member Units (1,600 units)

               400  650 

                     18,625  18,875 

                          

          Clad-Rex Steel, LLC

           December 20, 2016 

          Specialty Manufacturer of Vinyl-Clad Metal

                      

               

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.86%, Secured Debt (Maturity — December 20, 2021)(9)

            13,280  13,168  13,280 

               

          Member Units (717 units)(8)

               7,280  9,500 

               

          10% Secured Debt (Clad-Rex Steel RE Investor, LLC) (Maturity — December 20, 2036)

            1,183  1,171  1,183 

               

          Member Units (Clad-Rex Steel RE Investor, LLC) (800 units)

               210  280 

                     21,829  24,243 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          CMS Minerals Investments

           January 30, 2015 

          Oil & Gas Exploration & Production

                      

               

          Member Units (CMS Minerals II, LLC) (100 units)(8)

               3,440  2,392 

                          

          Copper Trail Energy Fund I, LP(12)(13)

           July 17, 2017 

          Investment Partnership

                      

               

          LP Interests (Fully diluted 30.1%)

               2,500  2,500 

                          

          Datacom, LLC

           May 30, 2014 

          Technology and Telecommunications Provider

                      

               

          8% Secured Debt (Maturity — May 30, 2018)

            1,575  1,575  1,575 

               

          5.25% Current / 5.25% PIK Secured Debt (Maturity — May 30, 2019)(19)

            12,349  12,311  11,110 

               

          Class A Preferred Member Units

               1,181  730 

               

          Class B Preferred Member Units (6,453 units)

               6,030   

                     21,097  13,415 

                          

          Gamber-Johnson Holdings, LLC

           June 24, 2016 

          Manufacturer of Ruggedized Computer Mounting Systems

                      

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.36%, Secured Debt (Maturity — June 24, 2021)(9)

            23,400  23,213  23,400 

               

          Member Units (8,619 units)(8)

               14,844  23,370 

                     38,057  46,770 

                          

          Garreco, LLC

           July 15, 2013 

          Manufacturer and Supplier of Dental Products

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.34%, Secured Debt (Maturity — March 31, 2020)(9)

            5,483  5,443  5,443 

               

          Member Units (1,200 units)

               1,200  1,940 

                     6,643  7,383 

                          

          GRT Rubber Technologies LLC

           December 19, 2014 

          Manufacturer of Engineered Rubber Products

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — December 19, 2019)(9)

            11,603  11,550  11,603 

               

          Member Units (5,879 units)(8)

               13,065  21,970 

                     24,615  33,573 

                          

          Gulf Manufacturing, LLC

           August 31, 2007 

          Manufacturer of Specialty Fabricated Industrial Piping Products

                      

               

          Member Units (438 units)(8)

               2,980  10,060 

                          

          Gulf Publishing Holdings, LLC

           April 29, 2016 

          Energy Industry Focused Media and Publishing

                      

               

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.86%, Secured Debt (Maturity — September 30, 2020)(9)

            80  80  80 

               

          12.5% Secured Debt (Maturity — April 29, 2021)

            12,800  12,703  12,703 

               

          Member Units (3,681 units)

               3,681  4,840 

                     16,464  17,623 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Harborside Holdings, LLC

           March 20, 2017 

          Real Estate Holding Company

                      

               

          Member units (100 units)

               6,206  9,400 

                          

          Harris Preston Fund Investments(12)(13)

           October 1, 2017 

          Investment Partnership

                      

               

          LP Interests (2717 MH, L.P.) (Fully diluted 49.3%)

               536  536 

                          

          Harrison Hydra-Gen, Ltd.

           June 4, 2010 

          Manufacturer of Hydraulic Generators

                      

               

          Common Stock (107,456 shares)

               718  3,580 

                          

          HW Temps LLC

           July 2, 2015 

          Temporary Staffing Solutions

                      

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.36%, Secured Debt (Maturity July 2, 2020)(9)

            9,976  9,918  9,918 

               

          Preferred Member Units (3,200 units)

               3,942  3,940 

                     13,860  13,858 

                          

          Hydratec, Inc.

           November 1, 2007 

          Designer and Installer of Micro-Irrigation Systems

                      

               

          Common Stock (7,095 shares)(8)

               7,095  15,000 

                          

          IDX Broker, LLC

           November 15, 2013 

          Provider of Marketing and CRM Tools for the Real Estate Industry

                      

               

          11.5% Secured Debt (Maturity — November 15, 2020)

            15,250  15,116  15,250 

               

          Preferred Member Units (5,607 units)(8)

               5,952  11,660 

                     21,068  26,910 

                          

          Jensen Jewelers of Idaho, LLC

           November 14, 2006 

          Retail Jewelry Store

                      

               

          Prime Plus 6.75% (Floor 2.00%), Current Coupon 11.00%, Secured Debt (Maturity — November 14, 2019)(9)

            3,955  3,917  3,955 

               

          Member Units (627 units)(8)

               811  5,100 

                     4,728  9,055 

                          

          KBK Industries, LLC

           January 23, 2006 

          Manufacturer of Specialty Oilfield and Industrial Products

                      

               

          10% Secured Debt (Maturity — September 28, 2020)

            375  372  375 

               

          12.5% Secured Debt (Maturity — September 28, 2020)

            5,900  5,867  5,900 

               

          Member Units (325 units)(8)

               783  4,420 

                     7,022  10,695 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Lamb Ventures, LLC

           May 30, 2008 

          Aftermarket Automotive Services Chain

                      

               

          11% Secured Debt (Maturity — July 1, 2022)

            9,942  9,890  9,942 

               

          Preferred Equity (non-voting)

               400  400 

               

          Member Units (742 units)(8)

               5,273  6,790 

               

          9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — March 31, 2027)

            432  428  432 

               

          Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

               625  520 

                     16,616  18,084 

                          

          Marine Shelters Holdings, LLC

           December 28, 2012 

          Fabricator of Marine and Industrial Shelters

                      

               

          12% PIK Secured Debt (Maturity — December 28, 2017)(14)

            3,131  3,078   

               

          Preferred Member Units (3,810 units)

               5,352   

                     8,430   

                          

          Market Force Information, LLC

           July 28, 2017 

          Provider of Customer Experience Management Services

                      

               

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.48%, Secured Debt (Maturity — July 28, 2022)(9)

            23,360  23,143  23,143 

               

          Member Units (657,113 units)

               14,700  14,700 
          ��

                     37,843  37,843 

                          

          MH Corbin Holding LLC

           August 31, 2015 

          Manufacturer and Distributor of Traffic Safety Products

                      

               

          13% Secured Debt (Maturity — August 31, 2020)

            12,600  12,526  12,526 

               

          Preferred Member Units (4,000 shares)

               6,000  6,000 

                     18,526  18,526 

                          

          Mid-Columbia Lumber Products, LLC

           December 18, 2006 

          Manufacturer of Finger-Jointed Lumber Products

                      

               

          10% Secured Debt (Maturity — January 15, 2020)

            1,398  1,390  1,390 

               

          12% Secured Debt (Maturity — January 15, 2020)

            3,900  3,863  3,863 

               

          Member Units (5,714 units)

               2,405  1,575 

               

          9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity — May 13, 2025)

            791  791  791 

               

          Member Units (Mid-Columbia Real Estate, LLC) (500 units)(8)

               790  1,290 

                     9,239  8,909 

                          

          MSC Adviser I, LLC(16)

           November 22, 2013 

          Third Party Investment Advisory Services

                      

               

          Member Units (Fully diluted 100.0%)(8)

                 41,768 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Mystic Logistics Holdings, LLC

           August 18, 2014 

          Logistics and Distribution Services Provider for Large Volume Mailers

                      

               

          12% Secured Debt (Maturity — August 15, 2019)

            7,768  7,696  7,696 

               

          Common Stock (5,873 shares)

               2,720  6,820 

                     10,416  14,516 

                          

          NAPCO Precast, LLC

           January 31, 2008 

          Precast Concrete Manufacturing

                      

               

          LIBOR Plus 8.50%, Current Coupon 9.98%, Secured Debt (Maturity — May 31, 2019)

            11,475  11,439  11,475 

               

          Member Units (2,955 units)(8)

               2,975  11,670 

                     14,414  23,145 

                          

          NRI Clinical Research, LLC

           September 8, 2011 

          Clinical Research Service Provider

                      

               

          LIBOR Plus 6.50% (Floor 1.50%), Current Coupon 8.00%, Secured Debt (Maturity — January 15, 2018)(9)

            400  400  400 

               

          14% Secured Debt (Maturity — January 15, 2018)

            3,865  3,865  3,865 

               

          Warrants (251,723 equivalent units; Expiration — September 8, 2021; Strike price — $0.01 per unit)

               252  500 

               

          Member Units (1,454,167 units)

               765  2,500 

                     5,282  7,265 

                          

          NRP Jones, LLC

           December 22, 2011 

          Manufacturer of Hoses, Fittings and Assemblies

                      

               

          12% Secured Debt (Maturity — March 20, 2023)

            6,376  6,376  6,376 

               

          Member Units (65,208 units)(8)

               3,717  3,250 

                     10,093  9,626 

                          

          NuStep, LLC

           January 31, 2017 

          Designer, Manufacturer and Distributor of Fitness Equipment

                      

               

          12% Secured Debt (Maturity — January 31, 2022)

            20,600  20,420  20,420 

               

          Preferred Member Units (406 units)

               10,200  10,200 

                     30,620  30,620 

                          

          OMi Holdings, Inc.

           April 1, 2008 

          Manufacturer of Overhead Cranes

                      

               

          Common Stock (1,500 shares)(8)

               1,080  14,110 

                          

          Pegasus Research Group, LLC

           January 6, 2011 

          Provider of Telemarketing and Data Services

                      

               

          Member Units (460 units)(8)

               1,290  10,310 

                          

          PPL RVs, Inc.

           June 10, 2010 

          Recreational Vehicle Dealer

                      

               

          LIBOR Plus 7.00% (Floor 0.50%), Current Coupon 8.34%, Secured Debt (Maturity — November 15, 2021)(9)

            16,100  15,972  16,100 

               

          Common Stock (1,962 shares)(8)

               2,150  12,440 

                     18,122  28,540 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Principle Environmental, LLC (d/b/a TruHorizon Environmental Solutions)

           February 1, 2011 

          Noise Abatement Service Provider

                      

               

          13% Secured Debt (Maturity — April 30, 2020)

            7,477  7,347  7,477 

               

          Preferred Member Units (19,631 units)

               4,600  11,490 

               

          Warrants (1,018 equivalent units; Expiration — January 31, 2021; Strike price — $0.01 per unit)

               1,200  650 

                     13,147  19,617 

                          

          Quality Lease Service, LLC

           June 8, 2015 

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

               

          Zero Coupon Secured Debt (Maturity — June 8, 2020)

            7,341  7,341  6,950 

               

          Member Units (1,000 units)

               2,868  4,938 

                     10,209  11,888 

                          

          River Aggregates, LLC

           March 30, 2011 

          Processor of Construction Aggregates

                      

               

          Zero Coupon Secured Debt (Maturity — June 30, 2018)

            750  707  707 

               

          Member Units (1,150 units)

               1,150  4,610 

               

          Member Units (RA Properties, LLC) (1,500 units)

               369  2,559 

                     2,226  7,876 

                          

          SoftTouch Medical Holdings LLC

           October 31, 2014 

          Provider of In-Home Pediatric Durable Medical Equipment

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — October 31, 2019)(9)

            7,140  7,110  7,140 

               

          Member Units (4,450 units)(8)

               4,930  10,089 

                     12,040  17,229 

                          

          The MPI Group, LLC

           October 2, 2007 

          Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                      

               

          9% Secured Debt (Maturity — October 2, 2018)

            2,924  2,923  2,410 

               

          Series A Preferred Units (2,500 units)

               2,500   

               

          Warrants (1,424 equivalent units; Expiration — July 1, 2024; Strike price — $0.01 per unit)

               1,096   

               

          Member Units (MPI Real Estate Holdings, LLC) (100 units)(8)

               2,300  2,389 

                     8,819  4,799 

                          

          Uvalco Supply, LLC

           January 2, 2008 

          Farm and Ranch Supply Store

                      

               

          9% Secured Debt (Maturity — January 1, 2019)

            348  348  348 

               

          Member Units (1,867 units)(8)

               3,579  3,880 

                     3,927  4,228 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Vision Interests, Inc.

           June 5, 2007 

          Manufacturer / Installer of Commercial Signage

                      

               

          13% Secured Debt (Maturity — December 23, 2018)

            2,814  2,797  2,797 

               

          Series A Preferred Stock (3,000,000 shares)

               3,000  3,000 

               

          Common Stock (1,126,242 shares)

               3,706   

                     9,503  5,797 

                          

          Ziegler's NYPD, LLC

           October 1, 2008 

          Casual Restaurant Group

                      

               

          6.5% Secured Debt (Maturity — October 1, 2019)

            1,000  996  996 

               

          12% Secured Debt (Maturity — October 1, 2019)

            300  300  300 

               

          14% Secured Debt (Maturity — October 1, 2019)

            2,750  2,750  2,750 

               

          Warrants (587 equivalent units; Expiration — September 29, 2018; Strike price — $0.01 per unit)

               600   

               

          Preferred Member Units (10,072 units)

               2,834  3,220 

                     7,480  7,266 

          Subtotal Control Investments (54.4% net assets at fair value)

           $530,034 $750,706 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Affiliate Investments(6)

           

           

           

           

           

           

                    

                          

          AFG Capital Group, LLC

           

          November 7, 2014

           

          Provider of Rent-to-Own Financing Solutions and Services

                      

               

          Warrants (42 equivalent units; Expiration — November 7, 2024; Strike price — $0.01 per unit)

              $259 $860 

               

          Preferred Member Units (186 units)(8)

               1,200  3,590 

                     1,459  4,450 

                          

          Barfly Ventures, LLC(10)

           

          August 31, 2015

           

          Casual Restaurant Group

                      

               

          12% Secured Debt (Maturity — August 31, 2020)

            8,715  8,572  8,715 

               

          Options (2 equivalent units)

               397  920 

               

          Warrant (1 equivalent unit; Expiration — August 31, 2025; Strike price — $1.00 per unit)

               473  520 

                     9,442  10,155 

                          

          BBB Tank Services, LLC

           

          April 8, 2016

           

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.36%, Secured Debt (Maturity — April 8, 2021)(9)

            800  778  778 

               

          15% Secured Debt (Maturity — April 8, 2021)

            4,000  3,876  3,876 

               

          Member Units (800,000 units)

               800  500 

                     5,454  5,154 

                          

          Boccella Precast Products LLC

           

          June 30, 2017

           

          Manufacturer of Precast Hollow Core Concrete

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.34%, Secured Debt (Maturity — June 30, 2022)(9)

            16,400  16,230  16,400 

               

          Member Units (2,160,000 units)

               2,160  3,440 

                     18,390  19,840 

                          

          Boss Industries, LLC

           

          July 1, 2014

           

          Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                      

               

          Preferred Member Units (2,242 units)(8)

               2,080  3,930 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Bridge Capital Solutions Corporation

           

          April 18, 2012

           

          Financial Services and Cash Flow Solutions Provider

                      

               

          13% Secured Debt (Maturity — July 25, 2021)

            7,500  5,884  5,884 

               

          Warrants (63 equivalent shares; Expiration — July 25, 2026; Strike price — $0.01 per share)

               2,132  3,520 

               

          13% Secured Debt (Mercury Service Group, LLC) (Maturity — July 25, 2021)

            1,000  992  1,000 

               

          Preferred Member Units (Mercury Service Group, LLC) (17,742 units)(8)

               1,000  1,000 

                     10,008  11,404 

                          

          Buca C, LLC

           

          June 30, 2015

           

          Casual Restaurant Group

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.63%, Secured Debt (Maturity — June 30, 2020)(9)

            20,304  20,193  20,193 

               

          Preferred Member Units (6 units; 6% cumulative)(8)(19)

               4,177  4,172 

                     24,370  24,365 

                          

          CAI Software LLC

           

          October 10, 2014

           

          Provider of Specialized Enterprise Resource Planning Software

                      

               

          12% Secured Debt (Maturity — October 10, 2019)

            4,083  4,060  4,083 

               

          Member Units (65,356 units)(8)

               654  3,230 

                     4,714  7,313 

                          

          Chandler Signs Holdings, LLC(10)

           

          January 4, 2016

           

          Sign Manufacturer

                      

               

          12% Secured Debt (Maturity — July 4, 2021)

            4,500  4,468  4,500 

               

          Class A Units (1,500,000 units)(8)

               1,500  2,650 

                     5,968  7,150 

                          

          Condit Exhibits, LLC

           

          July 1, 2008

           

          Tradeshow Exhibits / Custom Displays Provider

                      

               

          Member Units (3,936 units)(8)

               100  1,950 

                          

          Congruent Credit Opportunities Funds(12)(13)

           

          January 24, 2012

           

          Investment Partnership

                      

               

          LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)(8)

               5,730  1,515 

               

          LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

               17,869  18,632 

                     23,599  20,147 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Dos Rios Partners(12)(13)

           

          April 25, 2013

           

          Investment Partnership

                      

               

          LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

               5,996  7,165 

               

          LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

               1,904  1,889 

                     7,900  9,054 

                          

          Dos Rios Stone Products LLC(10)

           

          June 27, 2016

           

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

                      

               

          Class A Preferred Units (2,000,000 units)(8)

               2,000  1,790 

                          

          East Teak Fine Hardwoods, Inc.

           

          April 13, 2006

           

          Distributor of Hardwood Products

                      

               

          Common Stock (6,250 shares)(8)

               480  630 

                          

          EIG Fund Investments(12)(13)

           

          November 6, 2015

           

          Investment Partnership

                      

               

          LP Interests (EIG Global Private Debt Fund-A, L.P.) (Fully diluted 11.1%)(8)

               1,103  1,055 

                          

          Freeport Financial Funds(12)(13)

           

          June 13, 2013

           

          Investment Partnership

                      

               

          LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.3%)(8)

               5,974  5,614 

               

          LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.0%)(8)

               8,558  8,506 

                     14,532  14,120 

                          

          Gault Financial, LLC (RMB Capital, LLC)

           

          November 21, 2011

           

          Purchases and Manages Collection of Healthcare and other Business Receivables

                      

               

          10.5% Secured Debt (Maturity — January 1, 2019)

            12,483  12,483  11,532 

               

          Warrants (29,032 equivalent units; Expiration — February 9, 2022; Strike price — $0.01 per unit)

               400   

                     12,883  11,532 

                          

          Guerdon Modular Holdings, Inc.

           

          August 13, 2014

           

          Multi-Family and Commercial Modular Construction Company

                      

               

          13% Secured Debt (Maturity — August 13, 2019)

            10,708  10,632  10,632 

               

          Preferred Stock (404,998 shares)

               1,140   

               

          Common Stock (212,033 shares)

               2,983   

                     14,755  10,632 

                          

          Harris Preston Fund Investments(12)(13)

           

          October 1, 2017

           

          Investment Partnership

                      

               

          LP Interests (HPEP 3, L.P.) (Fully diluted 9.9%)

               943  943 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hawk Ridge Systems, LLC(13)

           

          December 2, 2016

           

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

                      

               

          11% Secured Debt (Maturity — December 2, 2021)

            14,300  14,175  14,300 

               

          Preferred Member Units (226 units)(8)

               2,850  3,800 

               

          Preferred Member Units (HRS Services, ULC) (226 units)(8)

               150  200 

                     17,175  18,300 

                          

          Houston Plating and Coatings, LLC

           

          January 8, 2003

           

          Provider of Plating and Industrial Coating Services

                      

               

          8% Unsecured Convertible Debt (Maturity — May 1, 2022)

            3,000  3,000  3,200 

               

          Member Units (315,756 units)

               2,179  6,140 

                     5,179  9,340 

                          

          I-45 SLF LLC(12)(13)

           

          October 20, 2015

           

          Investment Partnership

                      

               

          Member Units (Fully diluted 20.0%; 24.4% profits interest)(8)

               16,200  16,841 

                          

          L.F. Manufacturing Holdings, LLC(10)

           

          December 23, 2013

           

          Manufacturer of Fiberglass Products

                      

               

          Member Units (2,179,001 units)

               2,019  2,000 

                          

          Meisler Operating LLC

           

          June 7, 2017

           

          Provider of Short-term Trailer and Container Rental

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.84%, Secured Debt (Maturity — June 7, 2022)(9)

            16,800  16,633  16,633 

               

          Member Units (Milton Meisler Holdings LLC) (31,976 units)

               3,200  3,390 

                     19,833  20,023 

                          

          OnAsset Intelligence, Inc.

           

          April 18, 2011

           

          Provider of Transportation Monitoring / Tracking Products and Services

                      

               

          12% PIK Secured Debt (Maturity — June 30, 2021)(19)

            5,094  5,094  5,094 

               

          10% PIK Unsecured Debt (Maturity — June 30, 2021)(19)

            48  48  48 

               

          Preferred Stock (912 shares)

               1,981   

               

          Warrants (5,333 equivalent shares; Expiration — April 18, 2021; Strike price — $0.01 per share)

               1,919   

                     9,042  5,142 

                          

          OPI International Ltd.(13)

           

          November 30, 2010

           

          Provider of Man Camp and Industrial Storage Services

                      

               

          Common Stock (20,766,317 shares)

               1,371   

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          PCI Holding Company, Inc.

           

          December 18, 2012

           

          Manufacturer of Industrial Gas Generating Systems

                      

               

          12% Secured Debt (Maturity — March 31, 2019)

            12,650  12,593  12,593 

               

          Preferred Stock (1,740,000 shares) (non-voting)

               1,740  2,610 

               

          Preferred Stock (1,500,000 shares; 20% cumulative)(8)(19)

               3,927  890 

                     18,260  16,093 

                          

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           

          January 8, 2013

           

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

               

          12% Secured Debt (Maturity — January 8, 2018)(14)(15)

            30,785  30,281  250 

               

          Preferred Member Units (250 units)

               2,500   

                     32,781  250 

                          

          Tin Roof Acquisition Company

           

          November 13, 2013

           

          Casual Restaurant Group

                      

               

          12% Secured Debt (Maturity — November 13, 2018)

            12,783  12,722  12,722 

               

          Class C Preferred Stock (Fully diluted 10.0%; 10% cumulative)(8)(19)

               3,027  3,027 

                     15,749  15,749 

                          

          UniTek Global Services, Inc.(11)

           

          April 15, 2011

           

          Provider of Outsourced Infrastructure Services

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.20%, Secured Debt (Maturity — January 13, 2019)(9)

            8,535  8,529  8,535 

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.20% / 1.00% PIK, Current Coupon Plus PIK 10.20%, Secured Debt (Maturity — January 13, 2019)(9)(19)

            137  137  137 

               

          15% PIK Unsecured Debt (Maturity — July 13, 2019)(19)

            865  865  865 

               

          Preferred Stock (2,596,567 shares; 19% cumulative)(8)(19)

               2,858  2,850 

               

          Preferred Stock (4,935,377 shares; 13.5% cumulative)(8)(19)

               7,361  7,320 

               

          Common Stock (1,075,992 shares)

                 2,490 

                     19,750  22,197 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Universal Wellhead Services Holdings, LLC(10)

           

          October 30, 2014

           

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                      

               

          Preferred Member Units (UWS Investments, LLC) (716,949 units)

               717  830 

               

          Member Units (UWS Investments, LLC) (4,000,000 units)

               4,000  1,910 

                     4,717  2,740 

                          

          Valley Healthcare Group, LLC

           

          December 29, 2015

           

          Provider of Durable Medical Equipment

                      

               

          LIBOR Plus 12.50% (Floor 0.50%), Current Coupon 13.86%, Secured Debt (Maturity — December 29, 2020)(9)

            11,766  11,685  11,685 

               

          Preferred Member Units (Valley Healthcare Holding, LLC) (1,600 units)

               1,600  1,600 

                     13,285  13,285 

                          

          Volusion, LLC

           

          January 26, 2015

           

          Provider of Online Software-as-a-Service eCommerce Solutions

                      

               

          11.5% Secured Debt (Maturity — January 26, 2020)

            16,734  15,200  15,200 

               

          Preferred Member Units (4,876,670 units)

               14,000  14,000 

               

          Warrants (1,831,355 equivalent units; Expiration — January 26, 2025; Strike price — $0.01 per unit)

               2,576  2,080 

                     31,776  31,280 

          Subtotal Affiliate Investments (24.5% net assets at fair value)

           $367,317 $338,854 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Non-Control/Non-Affiliate Investments(7)

           

           

           

           

                    

                          

          AAC Holdings, Inc.(11)

           June 30, 2017 

          Substance Abuse Treatment Service Provider

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.13%, Secured Debt (Maturity — June 30, 2023)(9)

           $11,751 $11,475 $11,810 

          Adams Publishing Group, LLC(10)

           November 19, 2015 

          Local Newspaper Operator

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — November 3, 2020)(9)

            10,341  10,116  10,147 

                          

          ADS Tactical, Inc.(10)

           March 7, 2017 

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

                      

               

          LIBOR Plus 7.50% (Floor 0.75%), Current Coupon 9.19%, Secured Debt (Maturity — December 31, 2022)(9)

            13,014  12,767  12,833 

                          

          Aethon United BR LP(10)

           September 8, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.15%, Secured Debt (Maturity — September 8, 2023)(9)

            3,438  3,388  3,388 

                          

          Ahead, LLC(10)

           November 13, 2015 

          IT Infrastructure Value Added Reseller

                      

               

          LIBOR Plus 6.50%, Current Coupon 8.20%, Secured Debt (Maturity — November 2, 2020)

            11,061  10,848  11,130 

                          

          Allflex Holdings III Inc.(11)

           July 18, 2013 

          Manufacturer of Livestock Identification Products

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.36%, Secured Debt (Maturity — July 19, 2021)(9)

            13,846  13,781  13,955 

                          

          American Scaffold Holdings, Inc.(10)

           June 14, 2016 

          Marine Scaffolding Service Provider

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.19%, Secured Debt (Maturity — March 31, 2022)(9)

            7,031  6,947  6,996 

                          

          American Teleconferencing Services, Ltd.(11)

           May 19, 2016 

          Provider of Audio Conferencing and Video Collaboration Solutions

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.90%, Secured Debt (Maturity — December 8, 2021)(9)

            10,582  9,934  10,443 

               

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.85%, Secured Debt (Maturity — June 6, 2022)(9)

            3,714  3,589  3,507 

                     13,523  13,950 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Anchor Hocking, LLC(11)

           April 2, 2012 

          Household Products Manufacturer

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.49%, Secured Debt (Maturity — June 4, 2020)(9)

            2,254  2,211  2,248 

               

          Member Units (440,620 units)

               4,928  3,745 

                     7,139  5,993 

          Apex Linen Service, Inc.

           October 30, 2015 

          Industrial Launderers

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — October 30, 2022)(9)

            2,400  2,400  2,400 

               

          16% Secured Debt (Maturity — October 30, 2022)

            14,416  14,347  14,347 

                     16,747  16,747 

          Arcus Hunting LLC.(10)

           January 6, 2015 

          Manufacturer of Bowhunting and Archery Products and Accessories

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.34%, Secured Debt (Maturity — November 13, 2019)(9)

            15,391  15,294  15,391 

          ATI Investment Sub, Inc.(11)

           July 11, 2016 

          Manufacturer of Solar Tracking Systems

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.82%, Secured Debt (Maturity — June 22, 2021)(9)

            7,364  7,215  7,346 

          ATX Networks Corp.(11)(13)(21)

           June 30, 2015 

          Provider of Radio Frequency Management Equipment

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.33% / 1.00% PIK, Current Coupon Plus PIK 8.33%, Secured Debt (Maturity — June 11, 2021)(9)(19)

            9,567  9,454  9,507 

                          

          Berry Aviation, Inc.(10)

           January 30, 2015 

          Airline Charter Service Operator

                      

               

          13.75% Secured Debt (Maturity — January 30, 2020)

            5,627  5,598  5,627 

               

          Common Stock (553 shares)

               400  1,010 

                     5,998  6,637 

                          

          BigName Commerce, LLC(10)

           May 11, 2017 

          Provider of Envelopes and Complimentary Stationery Products

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.59%, Secured Debt (Maturity — May 11, 2022)(9)

            2,488  2,461  2,461 

                          

          Binswanger Enterprises, LLC(10)

           March 10, 2017 

          Glass Repair and Installation Service Provider

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.69%, Secured Debt (Maturity — March 9, 2022)(9)

            15,325  15,060  15,192 

               

          Member Units (1,050,000 units)

               1,050  1,000 

                     16,110  16,192 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Bluestem Brands, Inc.(11)

           December 19, 2013 

          Multi-Channel Retailer of General Merchandise

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.07%, Secured Debt (Maturity — November 6, 2020)(9)

            12,127  11,955  8,540 

                          

          Brainworks Software, LLC(10)

           August 12, 2014 

          Advertising Sales and Newspaper Circulation Software

                      

               

          Prime Plus 9.25% (Floor 3.25%), Current Coupon 13.75%, Secured Debt (Maturity — July 22, 2019)(9)

            6,733  6,705  6,573 

                          

          Brightwood Capital Fund Investments(12)(13)

           July 21, 2014 

          Investment Partnership

                      

               

          LP Interests (Brightwood Capital Fund III, LP) (Fully diluted 1.6%)(8)

               12,000  10,328 

               

          LP Interests (Brightwood Capital Fund IV, LP) (Fully diluted 0.8%)(8)

               1,000  1,063 

                     13,000  11,391 

                          

          Brundage-Bone Concrete Pumping, Inc.(11)

           August 18, 2014 

          Construction Services Provider

                      

               

          10.375% Secured Debt (Maturity — September 1, 2023)

            3,000  2,987  3,180 

                          

          Cadence Aerospace LLC(10)

           November 14, 2017 

          Aerostructure Manufacturing

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.91%, Secured Debt (Maturity — November 14, 2023)(9)

            15,000  14,853  14,853 

                          

          CapFusion, LLC(13)

           March 25, 2016 

          Non-Bank Lender to Small Businesses

                      

               

          13% Secured Debt (Maturity — March 25, 2021)(14)

            6,705  5,645  1,871 

                          

          California Pizza Kitchen, Inc.(11)

           August 29, 2016 

          Casual Restaurant Group

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — August 23, 2022)(9)

            12,902  12,862  12,677 

                          

          CDHA Management, LLC(10)

           December 5, 2016 

          Dental Services

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.76%, Secured Debt (Maturity — December 5, 2021)(9)

            5,365  5,303  5,365 

                          

          Central Security Group, Inc.(11)

           December 4, 2017 

          Security Alarm Monitoring Service Provider

                      

               

          LIBOR Plus 5.63% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — October 6, 2021)(9)

            7,481  7,462  7,518 

                          

          Cenveo Corporation(11)

           September 4, 2015 

          Provider of Commercial Printing, Envelopes, Labels, and Printed Office Products

                      

               

          6% Secured Debt (Maturity — August 1, 2019)

            19,130  17,126  13,582 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Charlotte Russe, Inc(11)

           May 28, 2013 

          Fast-Fashion Retailer to Young Women

                      

               

          LIBOR Plus 5.50% (Floor 1.25%), Current Coupon 6.89%, Secured Debt (Maturity — May 22, 2019)(9)

            19,041  16,473  7,807 

                          

          Clarius BIGS, LLC(10)

           September 23, 2014 

          Prints & Advertising Film Financing

                      

               

          15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

            2,924  2,924  85 

                          

          Clickbooth.com, LLC(10)

           December 5, 2017 

          Provider of Digital Advertising Performance Marketing Solutions

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.01%, Secured Debt (Maturity — December 5, 2022)(9)

            3,000  2,941  2,941 

                          

          Construction Supply Investments, LLC(10)

           December 29, 2016 

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — June 30, 2023)(9)

            7,125  7,090  7,090 

               

          Member Units (28,000 units)

               3,723  3,723 

                     10,813  10,813 

                          

          CTVSH, PLLC(10)

           August 3, 2017 

          Emergency Care and Specialty Service Animal Hospital

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.48%, Secured Debt (Maturity — August 3, 2022)(9)

            11,850  11,739  11,739 

                          

          Darr Equipment LP(10)

           April 15, 2014 

          Heavy Equipment Dealer

                      

               

          11.5% Current / 1% PIK Secured Debt (Maturity - June 22, 2023)(19)

            7,229  7,229  7,229 

               

          Warrants (915,734 equivalent units; Expiration — December 23, 2023; Strike price — $1.50 per unit)

               474  10 

                     7,703  7,239 

                          

          Digital River, Inc.(11)

           February 24, 2015 

          Provider of Outsourced e-Commerce Solutions and Services

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.08%, Secured Debt (Maturity — February 12, 2021)(9)

            9,313  9,266  9,337 

                          

          Drilling Info Holdings, Inc.

           November 20, 2009 

          Information Services for the Oil and Gas Industry

                      

               

          Common Stock (3,788,865 shares)(8)

                 8,610 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          EnCap Energy Fund Investments(12)(13)

           December 28, 2010 

          Investment Partnership

                      

               

          LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

               3,906  2,202 

               

          LP Interests (EnCap Energy Capital Fund VIII Co- Investors, L.P.) (Fully diluted 0.4%)

               2,227  1,549 

               

          LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

               4,305  3,720 

               

          LP Interests (EnCap Energy Capital Fund X, L.P.) (Fully diluted 0.1%)(8)

               6,277  6,225 

               

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.) (Fully diluted 0.8%)(8)

               6,138  6,116 

               

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.) (Fully diluted 0.2%)

               3,458  3,828 

                     26,311  23,640 

                          

          Evergreen Skills Lux S.á r.l.
          (d/b/a Skillsoft)(11)(13)

           May 5, 2014 

          Technology-based Performance Support Solutions

                      

               

          LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.82%, Secured Debt (Maturity — April 28, 2022)(9)

            6,999  6,878  6,244 

                          

          Extreme Reach, Inc.(11)

           March 31, 2015 

          Integrated TV and Video Advertising Platform

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.95%, Secured Debt (Maturity — February 7, 2020)(9)

            10,411  10,397  10,398 

                          

          Felix Investments Holdings II(10)

           August 9, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.90%, Secured Debt (Maturity — August 9, 2022)(9)

            3,333  3,267  3,267 

                          

          Flavors Holdings Inc.(11)

           October 15, 2014 

          Global Provider of Flavoring and Sweetening Products

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 7.44%, Secured Debt (Maturity — April 3, 2020)(9)

            13,076  12,616  12,128 

                          

          GI KBS Merger Sub LLC(11)

           November 10, 2014 

          Outsourced Janitorial Services to Retail/Grocery Customers

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.48%, Secured Debt (Maturity — October 29, 2021)(9)

            6,807  6,733  6,833 

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.88%, Secured Debt (Maturity — April 29, 2022)(9)

            3,915  3,769  3,793 

                     10,502  10,626 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          GoWireless Holdings, Inc.(11)

           December 31, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.16%, Secured Debt (Maturity — December 22, 2024)(9)

            18,000  17,820  17,865 

                          

          Grace Hill, LLC(10)

           August 29, 2014 

          Online Training Tools for the Multi-Family Housing Industry

                      

               

          Prime Plus 5.25% (Floor 1.00%), Current Coupon 9.75%, Secured Debt (Maturity — August 15, 2019)(9)

            1,215  1,208  1,215 

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.58%, Secured Debt (Maturity — August 15, 2019)(9)

            11,407  11,356  11,407 

                     12,564  12,622 

                          

          Great Circle Family Foods, LLC(10)

           March 25, 2015 

          Quick Service Restaurant Franchise

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.34%, Secured Debt (Maturity — October 28, 2019)(9)

            7,219  7,187  7,219 

                          

          Grupo Hima San Pablo, Inc.(11)

           March 7, 2013 

          Tertiary Care Hospitals

                      

               

          LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 8.50%, Secured Debt (Maturity — January 31, 2018)(9)

            4,750  4,748  3,541 

               

          13.75% Secured Debt (Maturity — July 31, 2018)

            2,055  2,040  226 

                     6,788  3,767 

                          

          GST Autoleather, Inc.(11)

           July 21, 2014 

          Automotive Leather Manufacturer

                      

               

          PRIME Plus 6.50% (Floor 2.25%), Current Coupon 11.00%, Secured Debt (Maturity — April 5, 2018)(9)

            7,578  7,500  7,500 

               

          PRIME Plus 6.50% (Floor 2.00%), Current Coupon 11.00%, Secured Debt (Maturity — July 10, 2020)(9)

            15,619  15,120  11,813 

                     22,620  19,313 

                          

          Guitar Center, Inc.(11)

           April 10, 2014 

          Musical Instruments Retailer

                      

               

          6.5% Secured Debt (Maturity — April 15, 2019)

            16,625  16,009  15,378 

                          

          Hojeij Branded Foods, LLC(10)

           July 28, 2015 

          Multi-Airport, Multi- Concept Restaurant Operator

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — July 20, 2022)(9)

            12,137  12,022  12,137 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hoover Group, Inc.(10)(13)

           October 21, 2016 

          Provider of Storage Tanks and Related Products to the Energy and Petrochemical Markets

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.70%, Secured Debt (Maturity — January 28, 2021)(9)

            8,460  7,986  7,783 

                          

          Hostway Corporation(11)

           December 27, 2013 

          Managed Services and Hosting Provider

                      

               

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.44%, Secured Debt (Maturity — December 13, 2019)(9)

            20,150  19,796  19,621 

               

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.44%, Secured Debt (Maturity — December 13, 2018)(9)

            12,406  11,575  11,692 

                     31,371  31,313 

                          

          Hunter Defense Technologies, Inc.(11)

           August 14, 2014 

          Provider of Military and Commercial Shelters and Systems

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — August 5, 2019)(9)

            20,224  19,851  19,997 

                          

          Hydrofarm Holdings LLC(10)

           May 18, 2017 

          Wholesaler of Horticultural Products

                      

               

          LIBOR Plus 7.00%, Current Coupon 8.49%, Secured Debt (Maturity — May 12, 2022)

            6,708  6,588  6,699 

                          

          iEnergizer Limited(11)(13)(21)

           May 8, 2013 

          Provider of Business Outsourcing Solutions

                      

               

          LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.57%, Secured Debt (Maturity — May 1, 2019)(9)

            11,005  10,764  10,977 

                          

          Implus Footcare, LLC(10)

           June 1, 2017 

          Provider of Footwear and Related Accessories

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.44%, Secured Debt (Maturity — April 30, 2021)(9)

            19,372  19,115  19,243 

                          

          Indivior Finance LLC(11)(13)

           March 20, 2015 

          Specialty Pharmaceutical Company Treating Opioid Dependence

                      

               

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — December 18, 2022)(9)

            1,176  1,171  1,182 

                          

          Industrial Services Acquisition, LLC(10)

           June 17, 2016 

          Industrial Cleaning Services

                      

               

          11.25% Current / 0.75% PIK Unsecured Debt (Maturity — December 17, 2022)(19)

            4,553  4,478  4,553 

               

          Member Units (Industrial Services Investments, LLC) (900,000 units)

               900  810 

                     5,378  5,363 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Inn of the Mountain Gods Resort and Casino(11)

           October 30, 2013 

          Hotel & Casino Owner & Operator

                      

               

          9.25% Secured Debt (Maturity — November 30, 2020)

            6,249  5,994  5,687 

                          

          iPayment, Inc.(11)

           June 25, 2015 

          Provider of Merchant Acquisition

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.62%, Secured Debt (Maturity — April 11, 2023)(9)

            11,970  11,861  12,090 

                          

          iQor US Inc.(11)

           April 17, 2014 

          Business Process Outsourcing Services Provider

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — April 1, 2021)(9)

            990  983  986 

                          

          irth Solutions, LLC

           December 29, 2010 

          Provider of Damage Prevention Information Technology Services

                      

               

          Member Units (27,893 units)

               1,441  1,920 

                          

          Jacent Strategic Merchandising, LLC(10)

           September 16, 2015 

          General Merchandise Distribution

                      

               

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.01%, Secured Debt (Maturity — September 16, 2020)(9)

            11,110  11,054  11,110 

                          

          Jackmont Hospitality, Inc.(10)

           May 26, 2015 

          Franchisee of Casual Dining Restaurants

                      

               

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.32%, Secured Debt (Maturity — May 26, 2021)(9)

            4,390  4,379  4,390 

                          

          Jacuzzi Brands LLC(11)

           June 30, 2017 

          Manufacturer of Bath and Spa Products

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — June 28, 2023)(9)

            3,950  3,876  3,980 

                          

          Joerns Healthcare, LLC(11)

           April 3, 2013 

          Manufacturer and Distributor of Health Care Equipment & Supplies

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.48% Secured Debt (Maturity — May 9, 2020)(9)

            13,387  13,299  12,472 

                          

          Keypoint Government Solutions, Inc.(10)

           April 17, 2017 

          Provider of Pre-Employment Screening Services

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.35%, Secured Debt (Maturity — April 18, 2024)(9)

            12,031  11,921  12,031 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Larchmont Resources, LLC(11)

           August 13, 2013 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.53%, PIK Secured Debt (Maturity — August 7, 2020)(9)(19)

            2,418  2,418  2,394 

               

          Member Units (Larchmont Intermediate Holdco, LLC) (2,828 units)

               353  976 

                     2,771  3,370 

                          

          LKCM Headwater Investments I, L.P.(12)(13)

           January 25, 2013 

          Investment Partnership

                      

               

          LP Interests (Fully diluted 2.3%)

               2,500  4,234 

                          

          Logix Acquisition Company, LLC(10)

           June 24, 2016 

          Competitive Local Exchange Carrier

                      

               

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 7.28%, Secured Debt (Maturity — August 9, 2024)(9)

            10,135  9,921  9,921 

                          

          Looking Glass Investments, LLC(12)(13)

           July 1, 2015 

          Specialty Consumer Finance

                      

               

          Member Units (2.5 units)

               125  57 

               

          Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

               108  92 

                     233  149 

                          

          LSF9 Atlantis Holdings, LLC(11)

           May 17, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — May 1, 2023)(9)

            2,963  2,931  2,978 

                          

          Lulu's Fashion Lounge, LLC(10)

           August 31, 2017 

          Fast Fashion E-Commerce Retailer

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.57%, Secured Debt (Maturity — August 28, 2022)(9)

            13,381  12,993  13,531 

                          

          Messenger, LLC(10)

           December 5, 2014 

          Supplier of Specialty Stationery and Related Products to the Funeral Industry

                      

               

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.74%, Secured Debt (Maturity — September 9, 2020)(9)

            17,331  17,249  17,331 

                          

          Minute Key, Inc.

           September 19, 2014 

          Operator of Automated Key Duplication Kiosks

                      

               

          Warrants (1,437,409 equivalent shares; Expiration — May 20, 2025; Strike price — $0.01 per share)

               280  1,170 

                          

          NBG Acquisition Inc(11)

           April 28, 2017 

          Wholesaler of Home Décor Products

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — April 26, 2024)(9)

            4,402  4,336  4,452 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          New Media Holdings II LLC(11)(13)

           June 10, 2014 

          Local Newspaper Operator

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.82%, Secured Debt (Maturity — July 14, 2022)(9)

            17,715  17,342  17,864 

                          

          NNE Partners, LLC(10)

           March 2, 2017 

          Oil & Gas Exploration & Production

                      

               

          LIBOR Plus 8.00%, Current Coupon 9.49%, Secured Debt (Maturity — March 2, 2022)

            11,958  11,854  11,854 

                          

          North American Lifting Holdings, Inc.(11)

           February 26, 2015 

          Crane Service Provider

                      

               

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 6.19%, Secured Debt (Maturity — November 27, 2020)(9)

            7,745  6,913  7,256 

                          

          Novetta Solutions, LLC(11)

           June 21, 2017 

          Provider of Advanced Analytics Solutions for Defense Agencies

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.70%, Secured Debt (Maturity — October 17, 2022)(9)

            14,636  14,189  14,239 

                          

          NTM Acquisition Corp.(11)

           July 12, 2016 

          Provider of B2B Travel Information Content

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.94%, Secured Debt (Maturity — June 7, 2022)(9)

            6,186  6,126  6,155 

                          

          Ospemifene Royalty Sub LLC (QuatRx)(10)

           July 8, 2013 

          Estrogen-Deficiency Drug Manufacturer and Distributor

                      

               

          11.5% Secured Debt (Maturity — November 15, 2026)(14)

            5,071  5,071  1,198 

                          

          P.F. Chang's China Bistro, Inc.(11)

           September 6, 2017 

          Casual Restaurant Group

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.51%, Secured Debt (Maturity — September 1, 2022)(9)

            4,988  4,846  4,715 

                          

          Paris Presents Incorporated(11)

           February 5, 2015 

          Branded Cosmetic and Bath Accessories

                      

               

          LIBOR Plus 8.75% (Floor 1.00%), Current Coupon 10.32%, Secured Debt (Maturity — December 31, 2021)(9)

            4,500  4,471  4,477 

                          

          Parq Holdings Limited Partnership(11)(13)(21)

           December 22, 2014 

          Hotel & Casino Operator

                      

               

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.19%, Secured Debt (Maturity — December 17, 2020)(9)

            7,481  7,399  7,528 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Permian Holdco 2, Inc.(11)

           February 12, 2013 

          Storage Tank Manufacturer

                      

               

          14% PIK Unsecured Debt (Maturity — October 15, 2021)(19)

            306  306  306 

               

          Preferred Stock (Permian Holdco 1, Inc.) (154,558 units)

               799  980 

               

          Common Stock (Permian Holdco 1, Inc.) (154,558 units)

                 140 

                     1,105  1,426 

                          

          Pernix Therapeutics Holdings, Inc.(10)

           August 18, 2014 

          Pharmaceutical Royalty

                      

               

          12% Secured Debt (Maturity — August 1, 2020)

            3,129  3,129  1,971 

                          

          Point.360(10)

           July 8, 2015 

          Fully Integrated Provider of Digital Media Services

                      

               

          Warrants (65,463 equivalent shares; Expiration — July 7, 2020; Strike price — $0.75 per share)

               69   

               

          Common Stock (163,658 shares)

               273  11 

                     342  11 

                          

          PPC/SHIFT LLC(10)

           December 22, 2016 

          Provider of Digital Solutions to Automotive Industry

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.69%, Secured Debt (Maturity — December 22, 2021)(9)

            6,869  6,748  6,869 

                          

          Prowler Acquisition Corp.(11)

           February 11, 2014 

          Specialty Distributor to the Energy Sector

                      

               

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 6.19%, Secured Debt (Maturity — January 28, 2020)(9)

            12,830  11,332  12,253 

                          

          PT Network, LLC(10)

           November 1, 2013 

          Provider of Outpatient Physical Therapy and Sports Medicine Services

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.86%, Secured Debt (Maturity — November 30, 2021)(9)

            8,553  8,553  8,553 

                          

          QBS Parent, Inc.(11)

           August 12, 2014 

          Provider of Software and Services to the Oil & Gas Industry

                      

               

          LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 6.13%, Secured Debt (Maturity — August 7, 2021)(9)

            14,272  14,114  14,165 

                          

          Research Now Group, Inc. and Survey Sampling International, LLC(11)

           December 31, 2017 

          Provider of Outsourced Online Surveying

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.13%, Secured Debt (Maturity — December 20, 2024)(9)

            13,500  12,826  12,826 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Resolute Industrial, LLC(10)

           July 26, 2017 

          HVAC Equipment Rental and Remanufacturing

                      

               

          LIBOR Plus 7.62% (Floor 1.00%), Current Coupon 8.95%, Secured Debt (Maturity — July 26, 2022)(9)(25)

            17,088  16,770  16,770 

               

          Member Units (601 units)

               750  750 

                     17,520  17,520 

                          

          RGL Reservoir Operations Inc.(11)(13)(21)

           August 25, 2014 

          Oil & Gas Equipment and Services

                      

               

          1% Current / 9% PIK Secured Debt (Maturity — December 21, 2024)(19)

            721  407  407 

                          

          RM Bidder, LLC(10)

           November 12, 2015 

          Scripted and Unscripted TV and Digital Programming Provider

                      

               

          Warrants (327,532 equivalent units; Expiration — October 20, 2025; Strike price — $14.28 per unit)

               425   

               

          Member Units (2,779 units)

               46  20 

                     471  20 

                          

          SAFETY Investment Holdings, LLC

           April 29, 2016 

          Provider of Intelligent Driver Record Monitoring Software and Services

                      

               

          Member Units (2,000,000 units)

               2,000  1,670 

                          

          Salient Partners L.P.(11)

           June 25, 2015 

          Provider of Asset Management Services

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.85%, Secured Debt (Maturity — June 9, 2021)(9)

            10,081  9,870  9,778 

                          

          SiTV, LLC(11)

           September 26, 2017 

          Cable Networks Operator

                      

               

          10.375% Secured Debt (Maturity — July 1, 2019)

            10,429  7,006  7,040 

                          

          SMART Modular Technologies, Inc.(10)(13)

           August 18, 2017 

          Provider of Specialty Memory Solutions

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.66%, Secured Debt (Maturity — August 9, 2022)(9)

            14,625  14,351  14,552 

                          

          Sorenson Communications, Inc.(11)

           June 7, 2016 

          Manufacturer of Communication Products for Hearing Impaired

                      

               

          LIBOR Plus 5.75% (Floor 2.25%), Current Coupon 8.00%, Secured Debt (Maturity — April 30, 2020)(9)

            13,234  13,170  13,341 

                          

          Staples Canada ULC(10)(13)(21)

           September 14, 2017 

          Office Supplies Retailer

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.43%, Secured Debt (Maturity — September 12, 2023)(9)(22)

            20,000  19,617  18,891 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Strike, LLC(11)

           December 12, 2016 

          Pipeline Construction and Maintenance Services

                      

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — November 30, 2022)(9)

            9,500  9,250  9,643 

               

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.45%, Secured Debt (Maturity — May 30, 2019)(9)

            2,500  2,479  2,513 

                     11,729  12,156 

                          

          Subsea Global Solutions, LLC(10)

           March 17, 2015 

          Underwater Maintenance and Repair Services

                      

               

          LIBOR Plus 6.00% (Floor 1.50%), Current Coupon 7.50%, Secured Debt (Maturity — March 17, 2020)(9)

            7,687  7,637  7,687 

                          

          Synagro Infrastructure Company, Inc(11)

           August 29, 2013 

          Waste Management Services

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — August 22, 2020)(9)

            9,161  8,933  8,608 

                          

          Tectonic Holdings, LLC

           May 15, 2017 

          Financial Services Organization

                      

               

          Member Units (200,000 units)(8)

               2,000  2,320 

                          

          TE Holdings, LLC(11)

           December 5, 2013 

          Oil & Gas Exploration & Production

                      

               

          Member Units (97,048 units)

               970  158 

                          

          TeleGuam Holdings, LLC(11)

           June 26, 2013 

          Cable and Telecom Services Provider

                      

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.07%, Secured Debt (Maturity — April 12, 2024)(9)

            7,750  7,602  7,808 

                          

          TGP Holdings III LLC(11)

           September 30, 2017 

          Outdoor Cooking & Accessories

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — September 25, 2024)(9)

            6,898  6,820  6,969 

               

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.19%, Secured Debt (Maturity — September 25, 2025)(9)

            5,000  4,927  5,075 

                     11,747  12,044 

                          

          The Container Store, Inc.(11)

           August 22, 2017 

          Operator of Stores Offering Storage and Organizational Products

                      

               

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — August 15, 2021)(9)

            9,938  9,660  9,652 

                          

          TMC Merger Sub Corp.(11)

           December 22, 2016 

          Refractory & Maintenance Services Provider

                      

               

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.88%, Secured Debt (Maturity — October 31, 2022)(9)(26)

            17,653  17,516  17,741 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          TOMS Shoes, LLC(11)

           November 13, 2014 

          Global Designer, Distributor, and Retailer of Casual Footwear

                      

               

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.98%, Secured Debt (Maturity — October 30, 2020)(9)

            4,875  4,610  2,901 

                          

          Turning Point Brands, Inc.(10)(13)

           February 17, 2017 

          Marketer/Distributor of Tobacco Products

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.61%, Secured Debt (Maturity — May 17, 2022)(9)(25)

            8,436  8,364  8,605 

                          

          TVG-I-E CMN ACQUISITION, LLC(10)

           November 3, 2016 

          Organic Lead Generation for Online Postsecondary Schools

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.56%, Secured Debt (Maturity — November 3, 2021)(9)

            8,170  8,031  8,170 

                          

          Tweddle Group, Inc.(11)

           November 15, 2016 

          Provider of Technical Information Services to Automotive OEMs

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.38%, Secured Debt (Maturity — October 21, 2022)(9)

            6,114  6,011  6,023 

                          

          U.S. TelePacific Corp.(11)

           September 14, 2016 

          Provider of Communications and Managed Services

                      

               

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — May 2, 2023)(9)

            20,703  20,507  19,862 

                          

          US Joiner Holding Company(11)

           April 23, 2014 

          Marine Interior Design and Installation

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — April 16, 2020)(9)

            13,465  13,366  13,398 

                          

          VIP Cinema Holdings, Inc.(11)

           March 9, 2017 

          Supplier of Luxury Seating to the Cinema Industry

                      

               

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — March 1, 2023)(9)

            7,700  7,666  7,777 

                          

          Vistar Media, Inc.(10)

           February 17, 2017 

          Operator of Digital Out-of-Home Advertising Platform

                      

               

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.69%, Secured Debt (Maturity — February 16, 2022)(9)

            3,319  3,048  3,102 

               

          Warrants (70,207 equivalent shares; Expiration — February 17, 2027; Strike price — $0.01 per share)

               331  499 

                     3,379  3,601 

                          

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Investment Date(28)
           Business Description
           Type of Investment(2)(3)(27)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Wellnext, LLC(10)

           May 23, 2016 

          Manufacturer of Supplements and Vitamins

                      

               

          LIBOR Plus 10.10% (Floor 1.00%), Current Coupon 11.67%, Secured Debt (Maturity — July 21, 2022)(9)(23)

            9,930  9,857  9,930 

                          

          Wireless Vision Holdings, LLC(10)

           September 29, 2017 

          Provider of Wireless Telecommunications Carrier Services

                      

               

          LIBOR Plus 8.91% (Floor 1.00%), Current Coupon 10.27%, Secured Debt (Maturity — September 29, 2022)(9)(24)

            12,932  12,654  12,654 

                          

          Wirepath LLC(11)

           August 16, 2017 

          E-Commerce Provider into Connected Home Market

                      

               

          LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.87%, Secured Debt (Maturity — August 5, 2024)(9)

            4,988  4,964  5,055 

                          

          Zilliant Incorporated

           June 15, 2012 

          Price Optimization and Margin Management Solutions

                      

               

          Preferred Stock (186,777 shares)

               154  260 

               

          Warrants (952,500 equivalent shares; Expiration — June 15, 2022; Strike price — $0.001 per share)

               1,071  1,189 

                     1,225  1,449 

                          

          Subtotal Non-Control/Non-Affiliate Investments (78.4% of net assets at fair value)

                    $1,107,447 $1,081,745 

                          

          Total Portfolio Investments, December 31, 2017

                    $2,004,798 $2,171,305 

          (1)
          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)
          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)
          See Note C for a summary of geographic location of portfolio companies.

          (4)
          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)
          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)
          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

          (7)
          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)
          Income producing through dividends or distributions.

          (9)
          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2017. As noted in this schedule, 67% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.25%, with a weighted-average LIBOR floor of approximately 1.02%.

          (10)
          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          (11)
          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)
          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)
          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)
          Non-accrual and non-income producing investment.

          (15)
          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

          (16)
          External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)
          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)
          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)
          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)
          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)
          Portfolio company headquarters are located outside of the United States.

          (22)
          In connection with the Company's debt investment in Staples Canada ULC to help mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company entered into a forward foreign currency contract with Cadence Bank to lend $24.2 million Canadian Dollars and receive $20.0 million U.S. Dollars with a settlement date of September 12, 2018. The unrealized appreciation on the forward foreign currency contract is $0.7 million as of December 31, 2017. This unrealized appreciation is offset by the foreign currency translation depreciation on the investment.

          (23)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (25)
          As part of the credit agreement with the portfolio company, the Company is entitled to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche receives priority over the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. The rate the Company receives per the Credit Agreement is the same as the rate reflected in the Consolidated Schedule of Investments above.

          (26)
          The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than the contractual stated interest rate of LIBOR plus 6.64% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such lower rate.

          (27)
          All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities."

          (28)
          Investment date represents the date of initial investment in the portfolio company.

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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

          NOTE A — A—ORGANIZATION AND BASIS OF PRESENTATION

          1.           Organization

          Main Street Capital Corporation ("MSCC"(“MSCC”) is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM"(“LMM”) companies and debt capital to middle market ("(“Middle Market"Market”) companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop"“one stop” financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

          MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC"(“BDC”) under the Investment Company Act of 1940, as amended (the "1940 Act"“1940 Act”). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II"(“MSMF”) and Main Street Capital III, LP ("(“MSC III"III” and, collectively with MSMF, and MSC II, the "Funds"“Funds”), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC"(“SBIC”) by the United States Small Business Administration ("SBA"(“SBA”). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

          MSC Adviser I, LLC (the "External“External Investment Manager"Manager”) was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("(“External Parties"Parties”) and receives fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC"(“SEC”) to allow the External Investment Manager to register as a registered investment adviser under the Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements.

          MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC"(“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"“Code”). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

          MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"“Taxable Subsidiaries”). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes.

          Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our,"“we,” “us,” “our,” the "Company"“Company” and "Main Street"“Main Street” refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

          2.           Basis of Presentation

          Main Street'sStreet’s consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("(“U.S. GAAP"GAAP”). The Company is an investment company following accounting and reporting guidance in Financial Accounting Standards Board ("FASB"(“FASB”)


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Accounting Standards Codification ("ASC"(“ASC”) 946,Financial Services — Services—Investment Companies (" (“ASC 946"946”). For each of the periods presented

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          herein, Main Street'sStreet’s consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of Main Street'sStreet’s investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan (as defined in Note C) portfolio investments, Other Portfolio (as defined in Note C) investments and the investment in the External Investment Manager (see "Note C — “Note C—Fair Value Hierarchy for Investments and Debentures — Debentures—Portfolio Composition — Composition—Investment Portfolio Composition"Composition” for additional discussion of Main Street'sStreet’s Investment Portfolio and definitions for the terms Private Loan and Other Portfolio). Main Street'sStreet’s results of operations for the years ended December 31, 2020, 2019 and 2018, cash flows for the years ended December 31, 2018, 20172020, 2019 and 20162018 and financial position as of December 31, 20182020 and 2017,2019, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current presentation.

          Principles of Consolidation

          Under ASC 946, Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an operating company that provides all or substantially all of its services directly to Main Street or to its portfolio companies. Accordingly, as noted above, MSCC'sMSCC’s consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. Main Street has determined that allnone of its portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street'sStreet’s Investment Portfolio is carried on the consolidated balance sheet at fair value, as discussed further in Note B.1., with any adjustments to fair value recognized as "Net“Net Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net“Net Realized Gain (Loss)."

            Portfolio Investment Classification

          Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments"“Control Investments” are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate Investments"“Affiliate Investments” are defined as investments in which Main Street owns between 5% and 25% (inclusive) of the voting securities and does not have rights to maintain greater than 50% of the board representation, and (c) "Non-Control/“Non-Control/Non-Affiliate Investments"Investments” are defined as investments that are neither Control Investments nor Affiliate Investments. For purposes of determining the classification of its Investment Portfolio, Main Street has excluded consideration of any voting securities or board appointment rights held by funds advised by the External Investment Manager.

          NOTE B — B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

          1.           Valuation of the Investment Portfolio

          Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of ASC 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

          Main Street'sStreet’s portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by privately held, LMM companies and more liquid debt securities issued by Middle Market companies that


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          are generally larger in size than the LMM companies. Main Street categorizes some of its investments in LMM companies and Middle Market companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies whichthat have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club“club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street's Street’s

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          portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its LMM portfolio investments, Middle Market portfolio investments or Private Loan portfolio investments, including investments which may be managed by third parties. Main Street'sStreet’s portfolio investments may be subject to restrictions on resale.

          LMM investments and Other Portfolio investments generally have no established trading market while Middle Market securities generally have established markets that are not active. Private Loan investments may include investments which have no established trading market or have established markets that are not active. Main Street determines in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by its Board of Directors and in accordance with the 1940 Act. Main Street'sStreet’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street'sStreet’s Investment Portfolio.

          For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process by using an enterprise value waterfall methodology ("Waterfall"(“Waterfall”) for its LMM equity investments and an income approach using a yield-to-maturity model ("Yield-to-Maturity"(“Yield-to-Maturity”) for its LMM debt investments. For Middle Market portfolio investments, Main Street primarily uses quoted prices in the valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For Middle Market and Private Loan portfolio investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-Maturity valuation method. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value ("NAV"(“NAV”) of the fund and adjusts the fair value for other factors deemed relevant that would affect the fair value of the investment. All of the valuation approaches for Main Street'sStreet’s portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date.

          These valuation approaches consider the value associated with Main Street'sStreet’s ability to control the capital structure of the portfolio company, as well as the timing of a potential exit. For valuation purposes, "control"“control” portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company'scompany’s board of directors. For valuation purposes, "non-control"“non-control” portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company'scompany’s board of directors.

          Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          the portfolio company, and then performs a waterfall calculation by allocating the enterprise value over the portfolio company'scompany’s securities in order of their preference relative to one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, privately held companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"(“EBITDA”), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors including the portfolio company'scompany’s historical and projected financial results. Due to SEC deadlines for Main Street'sStreet’s quarterly and annual financial reporting, the operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may require significant judgment in its determination.determining. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In

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          evaluating the operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company'scompany’s capital structure. In applying the Waterfall valuation method, Main Street assumes the loans are paid off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main Street believes is consistent with its past transaction history and standard industry practices.

          Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street'sStreet’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity analysis also considers changes in leverage levels, credit quality, portfolio company performance and other factors. Main Street will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street'sStreet’s general intent to hold its loans to maturity, the fair value will not exceed the principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

          Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment'sinvestment’s fair value for factors known to Main Street that would affect that fund'sfund’s NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of Main Street'sStreet’s investment as of the measurement date, recent actual sales or redemptions of interests in the investment fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by market


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          participants, or other uncertainties surrounding Main Street'sStreet’s ability to realize the full NAV of its interests in the investment fund.

          Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the Company'sCompany’s determinations of the fair value of its LMM portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street'sStreet’s investments in each LMM portfolio company at least once every calendar year, and for Main Street'sStreet’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders'stockholders’ best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street'sStreet’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at Main Street'sStreet’s determination of fair value on its investments in a total of 5458 LMM portfolio companies for the year ended December 31, 2018, representing approximately 87% of the total LMM portfolio at fair value as of December 31, 2018, and on a total of 53 LMM portfolio companies for the year ended December 31, 2017,2020, representing approximately 91% of the total LMM portfolio at fair value as of December 31, 2017.2020, and on a total of 57 LMM portfolio companies for the year ended December 31, 2019, representing approximately 94% of the total LMM portfolio at fair value as of December 31, 2019. Excluding its investments in new LMM portfolio companies which havethat, as of December 31, 2020 and 2019, as applicable, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment as of December 31, 2018 and 2017, as applicable, or whose primary purpose is to own real estate

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          for which a third-party appraisal is obtained on at least an annual basis, the percentage of the LMM portfolio reviewed and certified by its independent financial advisory services firm for the years ended December 31, 20182020 and 20172019 was 98% and 97%99% of the total LMM portfolio at fair value as of both December 31, 20182020 and 2017, respectively.2019.

          For valuation purposes, all of Main Street'sStreet’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. For Middle Market portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method. Because the vast majority of the Middle Market portfolio investments are typically valued using third-party quotes or other independent pricing services (including 94%90% and 95%91% of the Middle Market portfolio investments as of December 31, 20182020 and 2017,2019, respectively), Main Street generally does not consult with any financial advisory services firms in connection with determining the fair value of its Middle Market investments.

          For valuation purposes, all of Main Street'sStreet’s Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method.


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations and recommendations and an assurance certification regarding the Company'sCompany’s determinations of the fair value of its Private Loan portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street'sStreet’s investments in each Private Loan portfolio company at least once every calendar year, and for Main Street'sStreet’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders'stockholders’ best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street'sStreet’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at its determination of fair value on its investments in a total of 2736 Private Loan portfolio companies for the year ended December 31, 2018,2020, representing approximately 57%66% of the total Private Loan portfolio at fair value as of December, 2020, and on a total of 37 Private Loan portfolio companies for the year ended December 31, 2019, representing approximately 62% of the total Private Loan portfolio at fair value as of December 31, 2018, and on a total of 262019. Excluding its investments in Private Loan portfolio companies for the year ended December 31, 2017, representing approximately 57% of the total Private Loan portfolio at fair valuethat, as of December 31, 2017. Excluding its investments in new Private Loan portfolio companies which have2020 and 2019, as applicable, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment decision as of December 31, 2018 and 2017, as applicable, and its investments in its Private Loan portfolio companies that were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, the percentage of the Private Loan portfolio reviewed and certified by its independent financial advisory services firm for the years ended December 31, 20182020 and 20172019 was 91%92% and 94% of the total Private Loan portfolio at fair value as of December 31, 20182020 and 2017,2019, respectively.

          For valuation purposes, all of Main Street'sStreet’s Other Portfolio investments are non-control investments. Main Street'sStreet’s Other Portfolio investments comprised 4.4%3.6% and 4.8%4.1% of Main Street'sStreet’s Investment Portfolio at fair value as of December 31, 20182020 and 2017,2019, respectively. Similar to the LMM investment portfolio, market quotations for Other Portfolio equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of these investments using the NAV valuation method.

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          For valuation purposes, Main Street'sStreet’s investment in the External Investment Manager is a control investment. Market quotations are not readily available for this investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In estimating the enterprise value, Main Street analyzes various factors, including the entity'sentity’s historical and projected financial results, as well as its size, marketability and performance relative to the population of market comparables. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the investment. In addition, Main Street considers its ability to control the capital structure of the company, as well as the timing of a potential exit, in connection with determining the fair value of the External Investment Manager.

          Due to the inherent uncertainty in the valuation process, Main Street'sStreet’s determination of fair value for its Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

          Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its LMM portfolio companies. This system takes into account both quantitative and qualitative factors of the LMM portfolio company and the investments held therein.

          The Board of Directors of Main Street has the final responsibility for overseeing, reviewing and approving, in good faith, Main Street'sStreet’s determination of the fair value for its Investment Portfolio, as well as its valuation procedures, consistent with 1940 Act requirements. Main Street believes its Investment Portfolio as of December 31, 20182020 and 20172019 approximates fair value as of those dates based on the markets in which Main Street operates and other conditions in existence on those reporting dates.

          2.           Use of Estimates

          The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1., the consolidated financial statements include investments in the Investment Portfolio whose values have been estimated by Main Street with the oversight, review and approval by Main Street'sStreet’s Board of Directors in the absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the values that would have been determined had a ready market for the securities existed.

          The COVID-19 pandemic, and the related effect on the U.S. and global economies, has impacted, and threatens to continue to impact, the businesses and operating results of certain of Main Street’s portfolio companies, as well as market interest spreads. As a result of these and other current effects of the COVID-19 pandemic, as well as the uncertainty regarding the extent and duration of its impact, the valuation of Main Street’s Investment Portfolio is volatile.

          3.           Cash and Cash Equivalents

          Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value.

          At December 31, 2018,2020, cash balances totaling $50.3$29.1 million exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk related to the uninsured balance. All of the Company'sCompany’s cash deposits are held at large established high credit quality financial institutions and management believes that the risk of loss associated with any uninsured balances is remote.

          134


          4.            Interest, Dividend and Fee Income

          Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street'sStreet’s valuation policies, Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security'ssecurity’s status significantly improves regarding the debtor'sdebtor’s ability to service the debt or other obligations, or if a loan or debt security is sold or written-off,written off, Main Street removes it from non-accrual status.


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          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          As of December 31, 2018,2020, Main Street'sStreet’s total Investment Portfolio had sixseven investments on non-accrual status, which comprised approximately 1.3% of its fair value and 3.9%3.6% of its cost. As of December 31, 2017,2019, Main Street'sStreet’s total Investment Portfolio had fiveeight investments on non-accrual status, which comprised approximately 0.2%1.4% of its fair value and 2.3%4.8% of its cost.

          Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind ("PIK"(“PIK”) interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. For the years ended December 31, 2020, 2019, and 2018, (i) approximately 2.8%, 2.0%, and 1.0%, respectively, of Main Street’s total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 0.8%, 1.0%, and 1.0%, respectively, of Main Street’s total investment income was attributable to cumulative dividend income not paid currently in cash. Main Street stops accruing PIK interest and cumulative dividends and writes off any accrued and uncollected interest and dividends in arrears when it determines that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2018, 2017 and 2016, (i) approximately 1.0%, 2.4% and 3.6%, respectively, of Main Street's total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.0%, 1.6% and 1.2%, respectively, of Main Street's total investment income was attributable to cumulative dividend income not paid currently in cash.

          Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.

          A presentation of thetotal investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows:

          Twelve Months Ended December 31, 

              

          2020

              

          2019

              

          2018

          (dollars in thousands)

          Interest, fee and dividend income:

          Interest income

          $

          173,676

          $

          187,381

          $

          177,103

          Dividend income

           

          36,373

           

          49,782

           

          46,471

          Fee income

           

          12,565

           

          6,210

           

          9,781

          Total interest, fee and dividend income

          $

          222,614

          $

          243,373

          $

          233,355

          135


           
           Twelve Months Ended December 31, 
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Interest, fee and dividend income:

                    

          Interest income

           $177,103 $161,934 $138,689 

          Dividend income

            46,471  34,704  32,182 

          Fee income

            9,781  9,103  7,294 

          Total interest, fee and dividend income

           $233,355 $205,741 $178,165 

          5.           Deferred Financing Costs

          Deferred financing costs include commitment fees and other costs related to Main Street'sStreet’s multi-year revolving credit facility (the "Credit Facility"“Credit Facility”) and its unsecured notes, as well as the commitment fees and leverage fees (approximately 3.4% of the total commitment and draw amounts, as applicable) on the SBIC debentures, which are not accounted for under the fair value option under ASC 825 (as discussed further in Note B.11.). See further discussion of Main Street'sStreet’s debt in Note E. Deferred financing costs in connection with the Credit Facility are capitalized as an asset. Deferred financing costs in connection with all other debt arrangements not using the fair value option are a direct deduction from the related debt liability.


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          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          6.           Equity Offering Costs

          The Company'sCompany’s offering costs are charged against the proceeds from equity offerings when the proceeds are received.

          7.           Unearned Income — Income—Debt Origination Fees and Original Issue Discount and Discounts/Discounts / Premiums to Par Value

          Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt investments. The unearned income from the fees is accreted into income based on the effective interest method over the life of the financing.

          In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the underlying equity (together, "nominal“nominal cost equity"equity”) that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, Main Street allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt investment, and accreted into interest income based on the effective interest method over the life of the debt investment. The actual collection of this interest is deferred until the time of debt principal repayment.

          Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income based on the effective interest method over the life of the debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized as a reduction to interest income based on the effective interest method over the life of the debt investment.

          To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the interest income. For the years ended December 31, 2020, 2019 and 2018, 2017approximately 2.7%, 2.7% and 2016, approximately 3.0%, 3.6% and 3.1%, respectively, of Main Street'sStreet’s total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium reduction.

          8.           Share-Based Compensation

          Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Compensation—Stock CompensationCompensation.. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

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          Main Street has also adopted Accounting Standards Update ("ASU"(“ASU”) 2016-09,Compensation — Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) be recognized as income tax expense or benefit in the income statement and not delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. TheAccordingly, the tax effects of exercised or vested awards should beare treated as discrete items in the reporting period in which they occur. Additionally, Main Street has elected to account for forfeitures as they occur.


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          9.            Income Taxes

          MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment“investment company taxable income"income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) the filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

          The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes and to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street'sStreet’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street'sStreet’s consolidated financial statements.

          The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager'sManager’s separate financial statements.

                 In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act includes significant changes to the U.S. corporate tax system, including a U.S. federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740,Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation was enacted. As such, Main Street has accounted for the tax effects as a result of the enactment of the Tax Cuts and Jobs Act beginning with the period ended December 31, 2017.

          The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized. Our stockholder’s equity includes an adjustment to classification as a result of permanent book-to-tax differences, which include differences in the book and tax treatment of income and expenses.

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          Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

          10.         Net Realized Gains or Losses and Net Unrealized Appreciation or Depreciation

          Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment or a financial instrument and the cost basis of the investment or financial instrument, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net unrealized appreciation or depreciation reflects the net change in the fair value of the Investment Portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments and financial instruments to realized gains or losses.

          11.         Fair Value of Financial Instruments

          Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, receivables, payables and other liabilities approximate the fair values of such items due to the short-term nature of these instruments.

          As part of Main Street'sStreet’s acquisition of the majority of the equity interests of MSC II in January 2010 (the "MSC“MSC II Acquisition"Acquisition”), Main Street elected the fair value option under ASC 825,Financial Instruments (" (“ASC 825"825”), relating to accounting for debt obligations at their fair value, for the MSC II SBIC debentures acquired as part of the acquisition accounting related to the MSC II Acquisition and valuesvalued those obligations as discussed further in Note C. In order to provide for a more consistent basis of presentation, Main Street has continued to electelected the fair value option for SBIC debentures issued by MSC II subsequent to the MSC II Acquisition. When the fair value option is elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net“Net Unrealized Appreciation (Depreciation)—SBIC debentures"debentures” as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is included in interest expense.

          12.         Earnings per Share

          Basic and diluted per share calculations are computed utilizing the weighted-average number of shares of common stock outstanding for the period. In accordance with ASC 260,Earnings Per Share, the unvested shares of restricted stock awarded pursuant to Main Street'sStreet’s equity compensation plans are participating securities and, therefore, are included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.

          13.         Recently Issued or Adopted Accounting Standards

                 In May 2014, the FASB issued ASU 2014-09,Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605,Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Under the guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the FASB issued ASU 2016-08,Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12,Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the FASB issued ASU No. 2016-20,Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and clarified the scope and application of the new revenue standard and related cost guidance. The guidance is effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Substantially all of Main Street's income is not within the scope of ASU 2014-09. For those income items that are within the scope (primarily fee income), Main Street has similar performance obligations as compared with deliverables and separate units of account previously identified. As a result, Main Street's timing of its income recognition remains the same and the adoption of the standard was not material.

          In February 2016, the FASB issued ASU 2016-02,2016 02, Leases, which amended the FASB Accounting Standards Codification and created ASC 842, Leases (“ASC 842”), which requiresto require lessees to recognize on the balance sheet a right-of-useright of use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use ofmonths, utilizing a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The guidance is effective for annual periods beginning after December 15, 2018,in ASC 842 also requires qualitative and interim periods therein. Early application is permitted. While Main Street continuesquantitative disclosures designed to assess the effectamount, timing and uncertainty of adoption,cash flows arising from leases. Main Street currently believesadopted ASC 842 effective January 1, 2019. Under ASC 842, Main Street evaluates leases to determine if the most significant change relates to the recognition of a new right-of-use asset and lease liability on its consolidated balance sheet for its office spaceleases are considered financing or operating lease.leases. Main Street currently has one operating lease for office space for which it has recorded a right-of-use asset and does not expect a significant change in the leasing activity between now and adoption. See further discussion oflease liability for the operating lease obligationobligation. Non-lease components (maintenance, property tax, insurance and parking) are not included in Note K.the lease cost. The lease asset is presented as a single lease cost that is amortized on a straight-line basis over the life of the lease.

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          In August 2016,March 2020, the FASB issued ASU 2016-15,Statement2020-04, “Reference rate reform (Topic 848)—Facilitation of Cash Flows (Topic 230), whichthe effects of reference rate reform on financial reporting.” The amendments in this update provide optional expedients and exceptions for applying U.S. GAAP to certain contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform and became effective upon issuance for all entities. The Company has agreements that have LIBOR as a reference rate with certain portfolio companies and also with certain lenders. Many of these agreements include language for choosing an alternative successor rate if LIBOR reference is intendedno longer considered to reducebe appropriate. Contract modifications are required to be evaluated in determining whether the existing diversity in practice in how certain cash receipts and cash payments are presented and classifiedmodifications result in the statementestablishment of cash flows.new contracts or the continuation of existing contracts. The guidance is effectiveCompany adopted this amendment in March 2020 and plans to apply the amendments in this update to account for annual periods beginning after December 15, 2017, and interim periods therein. Main Street has adopted ASU 2016-15 andcontract modifications due to changes in reference rates. The Company continues to evaluate the impact ofthat the adoption ofamendments in this accounting standardupdate will have on Main Street'sits consolidated financial statements was not material.and disclosures when applied.

          In August 2018,May 2020, the FASB issued ASU 2018-13,Fair Value Measurement (Topic 820)SEC published Release No. 33-10786 (the “May 2020 Release”), which is intendedAmendments to improve fair valueFinancial Disclosures about Acquired and defined benefit disclosure requirements by removing disclosures that are not cost beneficial, clarifying disclosures' specific requirements, and adding relevant disclosure requirements. The amendments take effect for all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. EarlyDisposed Businesses, announcing its adoption is permitted. Main Street elected to early adopt ASU 2018-13of rules amending Rule 1-02(w)(2) used in the current annual period. Nodetermination of a significant changes were madesubsidiary specific to the fair value disclosures in the notes to the consolidated financial statements in order to comply with ASU 2018-13.


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

                 In August 2018, the SEC adopted rules (the "SEC Release") amending certain disclosure requirements intended to eliminate redundant, duplicative, overlapping, outdated, or superseded, in light of other SEC disclosure requirements, US GAAP requirements, or changes in the information environment.investment companies, including BDCs. In part, the SECrules adopted pursuant to the May 2020 Release eliminated the use of the asset test, and amended the income and investment tests for determining whether an unconsolidated subsidiary requires an investment company to present distributable earningsadditional disclosure in total on the consolidated balance sheet and consolidated statementfootnotes of changes in net assets, rather than showing the three components of distributable earnings as previously shown.financial statements. Main Street adopted this part of the SEC Release in the current annual period and the changes in presentation have been retrospectively appliedrules pursuant to the consolidated balance sheet as of December 31, 2017 and toMay 2020 Release during the consolidated statements of changes in net assets for the yearsquarter ended December 31, 2017 and 2016.June 30, 2020. The impact of the adoption of these rules on Main Street'sStreet’s consolidated financial statements was not material. Additionally,

          In December 2020, the SEC published Release requires disclosureNo. IC-34084 (the “December 2020 Release”) Use of changesDerivatives by Registered Investment Companies and Business Development Companies, announcing its adoption of rules amending Rule 18f-4 and Rule 6c-11 to provide an updated, comprehensive approach to the regulation of registered investment companies’, including BDCs’, use of derivatives and address investor protection concerns. In part, the rules adopted pursuant to the December 2020 Release require that funds using derivatives generally will have to adopt a derivatives risk management program that a derivatives risk manager administers and that the fund’s board of directors oversees, and comply with an outer limit on fund leverage. Funds that use derivatives only in net assets within a registrant's Form 10-Q filing on a quarter-to-datelimited manner will not be subject to these requirements, but they will have to adopt and year-to-date basis for bothimplement policies and procedures reasonably designed to manage the current yearfund’s derivatives risks. Funds also will be subject to reporting and prior year comparative periods.recordkeeping requirements regarding their derivatives use. Main Street expects towill adopt the new requirementrules pursuant to present changes in shareholders' equity in interim financial statements within Form 10-Q filings starting withthe December 2020 Release during the quarter endingended March 31, 2019. The compliance date for2021. As Main Street is a limited user of derivatives, the SEC Release was for all filings, as applicable, on or after November 5, 2018. Theimpact of the adoption of these rules will not have a material impact on the consolidated financial statements.statements is not expected to be material.

          From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by Main Street as of the specified effective date. Main Street believes that the impact of recently issued standards and any that are not yet effective will not have a material impact on its consolidated financial statements upon adoption.

          NOTE C — C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES — DEBENTURES—PORTFOLIO COMPOSITION

          ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

          Fair Value Hierarchy

          In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3).

          139


          Investments recorded on Main Street'sStreet’s balance sheet are categorized based on the inputs to the valuation techniques as follows:

            Level 1 — 1—Investments whose values are based on unadjusted quoted prices for identical assets in an active market that Main Street has the ability to access (examples include investments in active exchange-traded equity securities and investments in most U.S. government and agency securities).

            Level 2 — 2—Investments whose values are based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly for substantially the full term of the investment. Level 2 inputs include the following:

              Quoted prices for similar assets in active markets (for example, investments in restricted stock);

              Quoted prices for identical or similar assets in non-active markets (for example, investments in thinly traded public companies);
          Quoted prices for similar assets in active markets (for example, investments in restricted stock);
          Quoted prices for identical or similar assets in non-active markets (for example, investments in thinly traded public companies);
          Pricing models whose inputs are observable for substantially the full term of the investment (for example, market interest rate indices); and
          Pricing models whose inputs are derived principally from, or corroborated by, observable market data through correlation or other means for substantially the full term of the investment.

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          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

              Pricing models whose inputs are observable for substantially the full term of the investment (for example, market interest rate indices); and

              Pricing models whose inputs are derived principally from, or corroborated by, observable market data through correlation or other means for substantially the full term of the investment.

            Level 3 — 3—Investments whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement (for example, investments in illiquid securities issued by privately held companies). These inputs reflect management'smanagement’s own assumptions about the assumptions a market participant would use in pricing the investment.

          As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3 tables below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3).

          As of December 31, 20182020 and 2017,2019, all of Main Street'sStreet’s LMM portfolio investments consisted of illiquid securities issued by privately held companies. As a result,companies and the fair value determination for all of Main Street's LMM portfoliothese investments primarily consisted of unobservable inputs. As a result, all of Main Street'sStreet’s LMM portfolio investments were categorized as Level 3 as of December 31, 20182020 and 20172019.

          As of December 31, 20182020 and 2017,2019, Main Street'sStreet’s Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street'sStreet’s Middle Market portfolio investments were categorized as Level 3 as of December 31, 20182020 and 2017.2019.

          As of December 31, 20182020 and 2017,2019, Main Street'sStreet’s Private Loan portfolio investments primarily consisted of investments in interest-bearing secured debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street'sStreet’s Private Loan portfolio investments were categorized as Level 3 as of December 31, 20182020 and 2017.2019.

          140


          As of December 31, 20182020 and 2017,2019, Main Street'sStreet’s Other Portfolio investments consisted of illiquid securities issued by privately held companies. Thecompanies and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street'sStreet’s Other Portfolio investments were categorized as Level 3 as of December 31, 20182020 and 2017.2019.

          The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs:

              Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period available as compared to budgeted numbers;

              Current and projected financial condition of the portfolio company;

              Current and projected ability of the portfolio company to service its debt obligations;
          Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period available as compared to budgeted numbers;
          Current and projected financial condition of the portfolio company;
          Current and projected ability of the portfolio company to service its debt obligations;
          Type and amount of collateral, if any, underlying the investment;
          Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment;
          Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio);
          Pending debt or capital restructuring of the portfolio company;
          Projected operating results of the portfolio company;
          Current information regarding any offers to purchase the investment;
          Current ability of the portfolio company to raise any additional financing as needed;
          Changes in the economic environment which may have a material impact on the operating results of the portfolio company;
          Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company;
          Qualitative assessment of key management;
          Contractual rights, obligations or restrictions associated with the investment; and
          Other factors deemed relevant.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

              Type and amount of collateral, if any, underlying the investment;

              Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment;

              Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio);

              Pending debt or capital restructuring of the portfolio company;

              Projected operating results of the portfolio company;

              Current information regarding any offers to purchase the investment;

              Current ability of the portfolio company to raise any additional financing as needed;

              Changes in the economic environment which may have a material impact on the operating results of the portfolio company;

              Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company;

              Qualitative assessment of key management;

              Contractual rights, obligations or restrictions associated with the investment; and

              Other factors deemed relevant.

          The use of significant unobservable inputs creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair value measurement of Main Street'sStreet’s LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of capital ("WACC"(“WACC”). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street'sStreet’s LMM, Middle Market and Private Loan securities are (i) risk adjusted discount rates used in the Yield-to-Maturity valuation technique (see "Note“Note B.1.—Valuation of the Investment Portfolio"Portfolio”) and (ii) the percentage of expected principal recovery. Significant increases (decreases) in any of these discount rates in isolation would result in a significantly lower

          141


          (higher) fair value measurement. Significant increases (decreases) in any of these expected principal recovery percentages in isolation would result in a significantly higher (lower) fair value measurement. However, due to the nature of certain investments, fair value measurements may be based on other criteria, such as third-party appraisals of collateral and fair values as determined by independent third parties, which are not presented in the tables below.


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The following tables provide a summary of the significant unobservable inputs used to fair value Main Street'sStreet’s Level 3 portfolio investments as of December 31, 20182020 and 2017:2019:

              

          Fair Value as of

              

              

              

              

              

           

          December 31, 

           

          Type of

          2020

          Significant

          Weighted

           

          Investment

           

          (in thousands)

          Valuation Technique

          Unobservable Inputs

          Range(3)

          Average(3)

          Median(3)

          Equity investments

          $

          877,732

           

          Discounted cash flow

           

          WACC

           

          9.4% - 21.0%

           

          14.3

          %

          15.0

          %

           

          Market comparable / Enterprise Value

           

          EBITDA multiple (1)

           

          4.5x - 8.5x(2)

           

          7.0x

           

          6.1x

          Debt investments

          $

          1,339,079

           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          7.4% - 15.3%(2)

           

          10.6

          %

          10.8

          %

           

          Expected principal recovery percentage

           

          0.0% - 100.0%

           

          99.4

          %

          100.0

          %

          Debt investments

          $

          468,055

           

          Market approach

           

          Third‑party quote

           

          45 - 100.3

           

          94.7

           

          96.5

          Total Level 3 investments

          $

          2,684,866


          (1)EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.
          (2)Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.2x - 15.0x and the range for risk adjusted discount factor is 5.4% - 29.5%.
          (3)Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

          Type of Investment
           Fair Value as of
          December 31,
          2018
          (in thousands)
           Valuation Technique Significant
          Unobservable Inputs
           Range(3) Weighted
          Average(3)
           Median(3) 

              

          Fair Value as of

              

              

              

              

              

           

          December 31, 

           

          Type of

          2019

          Significant

          Weighted

           

          Investment

           

          (in thousands)

          Valuation Technique

          Unobservable Inputs

          Range(3)

          Average(3)

          Median(3)

          Equity investments

           $767,156 

          Discounted cash flow

           

          WACC

           9.9% - 20.7% 13.7% 14.3% 

          $

          819,749

           

          Discounted cash flow

           

          WACC

           

          9.6% - 20.3%

           

          13.6

          %

          14.2

          %

             

          Market comparable / Enterprise Value

           

          EBITDA multiple(1)

           4.7x - 8.0x(2) 7.0x 6.0x 

          Debt investments

           
          $

          1,039,453
           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          8.5% - 17.0%(2)

           
          12.2%
           
          12.0%
           

             

          Expected principal recovery percentage

           1.5% - 100.0% 99.3% 100.0% 

           

          Market comparable / Enterprise Value

           

          EBITDA multiple (1)

           

          4.9x - 8.5x(2)

           

          7.2x

           

          6.4x

          Debt investments

           
          $

          647,300
           

          Market approach

           

          Third-party quote

           

          37.5 - 101.0

           
          96.0
           
          98.3
           

          $

          1,212,741

           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          5.9% - 16.5%(2)

           

          10.4

          %

          10.0

          %

           

          Expected principal recovery percentage

           

          1.4% - 100.0%

           

          99.3

          %

          100.0

          %

          Debt investments

          $

          569,834

           

          Market approach

           

          Third‑party quote

           

          28.1 - 101.0

           

          94.7

           

          98.0

          Total Level 3 investments

           $2,453,909        

          $

          2,602,324


          (1)EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.
          (2)Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 4.5x - 15.0x and the range for risk adjusted discount factor is 4.6% - 38.0%.
          (3)Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

          142


          (1)
          EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

          (2)
          Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 3.9x - 15.0x and the range for risk adjusted discount factor is 5.3% - 30.3%.

          (3)
          Does not include investments for which the valuation technique does not include the use of the applicable fair value input.
          Type of Investment
           Fair Value as of
          December 31,
          2017
          (in thousands)
           Valuation Technique Significant
          Unobservable Inputs
           Range(3) Weighted
          Average(3)
           Median(3) 

          Equity investments

           $653,008 

          Discounted cash flow

           

          WACC

           11.1% - 23.2%  13.7%  14.0% 

              

          Market comparable / Enterprise Value

           

          EBITDA multiple(1)

           4.3x - 8.5x(2)  7.3x  6.0x 

          Debt investments

           $858,816 

          Discounted cash flow

           

          Risk adjusted discount factor

           6.7% - 16.1%(2)  11.2%  11.0% 

                

          Expected principal recovery percentage

           2.9% - 100.0%  99.8%  100.0% 

          Debt investments

           $659,481 

          Market approach

           

          Third-party quote

           11.0 - 106.0  95.9%  99.4% 

          Total Level 3 investments            

           $2,171,305             

          (1)
          EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

          (2)
          Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 4.0x - 17.5x and the range for risk adjusted discount factor is 4.3% - 30.0%.

          (3)
          Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The following tables provide a summary of changes in fair value of Main Street'sStreet’s Level 3 portfolio investments for the years ended December 31, 20182020 and 20172019 (amounts in thousands):

          Net

          Fair Value

          Transfers

          Changes

          Net

          Fair Value

          as of

          Into

          from

          Unrealized

          as of

          Type of

           

          December 31, 

           

          Level 3

           

          Redemptions/

           

          New

           

          Unrealized

           

          Appreciation

           

          December 31, 

          Investment

              

          2019

              

          Hierarchy

              

          Repayments

              

          Investments

              

          to Realized

              

          (Depreciation)

              

          Other(1)

              

          2020

          Debt

          $

          1,782,575

          $

          $

          (544,545)

          $

          560,536

          $

          110,099

          $

          (78,866)

          $

          (22,665)

          $

          1,807,134

          Equity

          809,538

          (51,251)

          114,733

          8,938

          (38,404)

          22,665

          866,219

          Equity Warrant

          10,211

          (2,245)

          2,245

          1,302

          11,513

          $

          2,602,324

          $

          $

          (598,041)

          $

          675,269

          $

          121,282

          $

          (115,968)

          $

          $

          2,684,866


          (1)Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.

              

              

              

              

              

          Net

              

              

              

          Fair Value

          Transfers

          Changes

          Net

          Fair Value

          as of

          Into

          from

          Unrealized

          as of

          Type of

          December 31, 

          Level 3

          Redemptions/

          New

          Unrealized

          Appreciation

          December 31, 

          Investment

          2018

          Hierarchy

          Repayments

          Investments

           

          to Realized

          (Depreciation)

          Other(1)

          2019

          Debt

          $

          1,686,753

          $

          $

          (471,923)

          $

          595,285

          $

          35,204

          $

          (43,969)

          $

          (18,775)

          $

          1,782,575

          Equity

           

          755,710

           

           

          (24,322)

           

          46,046

           

          (15,287)

           

          26,809

           

          20,582

           

          809,538

          Equity Warrant

           

          11,446

           

           

          1,217

           

          316

           

          (1,090)

           

          129

           

          (1,807)

           

          10,211

          $

          2,453,909

          $

          $

          (495,028)

          $

          641,647

          $

          18,827

          $

          (17,031)

          $

          $

          2,602,324


          (1)Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.
          Type of
          Investment
           Fair Value
          as of
          December 31,
          2017
           Transfers
          Into
          Level 3
          Hierarchy
           Redemptions/
          Repayments
           New
          Investments
           Net
          Changes
          from
          Unrealized
          to Realized
           Net
          Unrealized
          Appreciation
          (Depreciation)
           Other(1) Fair Value
          as of
          December 31,
          2018
           

          Debt

           $1,518,297 $ $(653,200)$837,162 $38,722 $(45,778)$(8,450)$1,686,753 

          Equity

            641,493    (48,585) 114,639  (33,971) 73,684  8,450  755,710 

          Equity Warrant

            11,515    (680) 181  (720) 1,150    11,446 

           $2,171,305 $ $(702,465)$951,982 $4,031 $29,056 $ $2,453,909 

          (1)
          Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.
          Type of
          Investment
           Fair Value
          as of
          December 31,
          2016
           Transfers
          Into
          Level 3
          Hierarchy
           Redemptions/
          Repayments
           New
          Investments
           Net
          Changes
          from
          Unrealized
          to Realized
           Net
          Unrealized
          Appreciation
          (Depreciation)
           Other(1) Fair Value
          as of
          December 31,
          2017
           

          Debt

           $1,427,823 $ $(753,240)$848,014 $25,146 $(19,664)$(9,782)$1,518,297 

          Equity

            549,453    (44,773) 74,227  (25,596) 77,583  10,599  641,493 

          Equity Warrant

            17,550    (4,697) 331  (549) (303) (817) 11,515 

           $1,994,826 $ $(802,710)$922,572 $(999)$57,616 $ $2,171,305 

          (1)
          Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.

          As of December 31, 2018 and 2017,2019, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the SBIC debentures which arewere recorded at fair value were categorized as Level 3. Main Street determinesdetermined the fair value of these instruments primarily using a Yield-to-Maturity approach that analyzesanalyzed the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market interest rates for debt instruments of similar structure, terms, and maturity. Main Street'sStreet’s estimate of the expected repayment date of principal for each SBIC debenture recorded at fair value iswas the legal maturity date of the instrument. The significant unobservable inputs used in the fair value measurement of Main Street'sStreet’s SBIC debentures recorded at fair value arewere the estimated market interest rates used to fair value each debenture using the yield valuation technique described above. Significant increases (decreases) in the estimated market interest rates in isolation would result in a significantly lower (higher) fair value measurement.

                 The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 SBIC debentures asAs of December 31, 2018 and 2017 (amounts in thousands):

          Type of Instrument
           Fair Value
          as of
          December 31, 2018
           Valuation Technique Significant
          Unobservable Inputs
           Range Weighted
          Average
           

          SBIC debentures

           $44,688 Discounted cash flow Estimated market interest rates 5.5% - 5.8%  5.6%


          Type of Instrument
           Fair Value
          as of
          December 31, 2017
           Valuation Technique Significant
          Unobservable Inputs
           Range Weighted
          Average
           

          SBIC debentures

           $48,608 Discounted cash flow Estimated market interest rates 4.9% - 5.5%  5.1%

          Table2020, all of Contentsthe SBIC debentures previously accounted for on a fair value basis have been repaid.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The following tables provide a summary of changes for the Level 3 SBIC debentures recorded at fair value for the years ended December 31, 20182020 and 20172019 (amounts in thousands):

              

          Fair Value

              

              

              

              

          Net

              

          Fair Value

          as of

          Unrealized

          as of

          Type of

          December 31, 

          Net Realized

          New SBIC

          (Appreciation)

          December 31, 

          Investment

           

          2019

          Repayments

          Loss

          Debentures

           

          Depreciation

           

          2020

          SBIC debentures at fair value

          $

          21,927

          $

          (22,000)

          $

          533

          $

          $

          (460)

          $

              

          Fair Value

              

              

              

              

          Net

              

          Fair Value

          as of

          Unrealized

          as of

          Type of

          December 31, 

          Net Realized

          New SBIC

          (Appreciation)

          December 31, 

          Investment

           

          2018

          Repayments

          Loss

          Debentures

           

          Depreciation

           

          2019

          SBIC debentures at fair value

          $

          44,688

          $

          (24,000)

          $

          5,689

          $

          $

          (4,450)

          $

          21,927

          143


          Type of Instrument
           Fair Value
          as of
          December 31,
          2017
           Repayments Net Realized
          Loss
           New SBIC
          Debentures
           Net
          Unrealized
          (Appreciation)
          Depreciation
           Fair Value
          as of
          December 31,
          2018
           

          SBIC debentures at fair value

           $48,608 $(4,000)$1,374 $ $(1,294)$44,688 

          The following tables provide a summary of the significant unobservable inputs used to fair value Main Street’s Level 3 SBIC debentures as of December 31, 2019 (amounts in thousands):

              

          Fair Value

              

              

              

              

           

          Type of

          as of

          Significant

          Weighted

           

          Investment

          December 31, 2019

          Valuation Technique

          Unobservable Inputs

          Range

          Average

           

          SBIC debentures

          $

          21,927

           

          Discounted cash flow

           

          Estimated market interest rates

           

          3.2% - 3.5%

          3.2

          %


          Type of Instrument
           Fair Value
          as of
          December 31,
          2016
           Repayments Net Realized
          Loss
           New SBIC
          Debentures
           Net
          Unrealized
          (Appreciation)
          Depreciation
           Fair Value
          as of
          December 31,
          2017
           

          SBIC debentures at fair value

           $74,803 $(25,200)$5,217 $ $(6,212)$48,608 

          At December 31, 20182020 and 2017,2019, Main Street'sStreet’s investments and SBIC debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:


            
           Fair Value Measurements 

            
           (in thousands)
           
          At December 31, 2018
           Fair Value Quoted Prices in
          Active Markets for
          Identical Assets
          (Level 1)
           Significant Other
          Observable Inputs
          (Level 2)
           Significant
          Unobservable
          Inputs
          (Level 3)
           

          Fair Value Measurements

          (in thousands)

              

              

          Quoted Prices in

              

              

          Significant

           

          Active Markets for

           

          Significant Other

           

          Unobservable

           

          Identical Assets

           

          Observable Inputs

           

          Inputs

          At December 31, 2020

          Fair Value

           

          (Level 1)

          (Level 2)

           

          (Level 3)

          LMM portfolio investments

           $1,195,035 $ $ $1,195,035 

          $

          1,285,524

          $

          $

          $

          1,285,524

          Middle Market portfolio investments

           576,929   576,929 

           

          445,609

           

           

           

          445,609

          Private Loan portfolio investments

           507,892   507,892 

           

          740,370

           

           

           

          740,370

          Other Portfolio investments

           108,305   108,305 

           

          96,603

           

           

           

          96,603

          External Investment Manager

           65,748   65,748 

           

          116,760

           

           

           

          116,760

          Total investments

           $2,453,909 $ $ $2,453,909 

          $

          2,684,866

          $

          $

          $

          2,684,866

          SBIC debentures at fair value

           $44,688 $ $ $44,688 



            
           Fair Value Measurements 

            
           (in thousands)
           
          At December 31, 2017
           Fair Value Quoted Prices in
          Active Markets for
          Identical Assets
          (Level 1)
           Significant Other
          Observable Inputs
          (Level 2)
           Significant
          Unobservable
          Inputs
          (Level 3)
           

              

          Fair Value Measurements

          (in thousands)

          Quoted Prices in

          Significant

           

          Active Markets for

           

          Significant Other

          Unobservable

           

          Identical Assets

           

          Observable Inputs

           

          Inputs

          At December 31, 2019

          Fair Value

              

          (Level 1)

              

          (Level 2)

              

          (Level 3)

          LMM portfolio investments

           $948,196 $ $ $948,196 

          $

          1,206,865

          $

          $

          $

          1,206,865

          Middle Market portfolio investments

           609,256   609,256 

           

          522,083

           

           

           

          522,083

          Private Loan portfolio investments

           467,475   467,475 

           

          692,117

           

           

           

          692,117

          Other Portfolio investments

           104,610   104,610 

           

          106,739

           

           

           

          106,739

          External Investment Manager

           41,768   41,768 

           

          74,520

           

           

           

          74,520

          Total investments

           $2,171,305 $ $ $2,171,305 

          $

          2,602,324

          $

          $

          $

          2,602,324

          SBIC debentures at fair value

           $48,608 $ $ $48,608 

          $

          21,927

          $

          $

          $

          21,927

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Investment Portfolio Composition

          Main Street'sStreet’s LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Main Street'sStreet’s LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, can include either fixed or floating rate terms and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, Main Street receives nominally priced equity warrants and/or makes direct equity investments in connection with a debt investment.

          Main Street'sStreet’s Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in Main Street'sStreet’s LMM portfolio. Main Street'sStreet’s Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $3 million to $20 million. Main Street'sStreet’s Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

          144


          Main Street'sStreet’s private loan ("(“Private Loan"Loan”) portfolio investments are primarily debt securities in privately held companies whichthat have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club“club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street'sStreet’s Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

          Main Street'sStreet’s other portfolio ("(“Other Portfolio"Portfolio”) investments primarily consist of investments whichthat are not consistent with the typical profiles for its LMM, Middle Market andor Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, Main Street may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds. For Other Portfolio investments, Main Street generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five to ten yearten-year period.

          Main Street'sStreet’s external asset management business is conducted through its External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. Main Street entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income Fund, Inc. (“MSC Income”), formerly known as HMS Income Fund, Inc. ("HMS Income"). Through this agreement, Main Street shares employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities. Main Street allocates the related expenses to the External Investment Manager pursuant to the sharing agreement. Main Street'sStreet’s total expenses for the yearsyear ended December 31, 2018, 20172020, 2019, and 20162018, are net of expenses allocated to the External Investment Manager of $6.8$7.4 million, $6.4$6.7 million, and $5.1$6.8 million, respectively.

          Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments of debt investments or sales of equity interests. Investment income in any given year could also be highly concentrated among several portfolio


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          companies. For the years ended December 31, 2018, 20172020 and 2016,2019, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income.

          The following tables provide a summary of Main Street'sStreet’s investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

              

          As of December 31, 2020

           

          LMM (a)

          Middle Market

          Private Loan

           

          (dollars in millions)

           

          Number of portfolio companies

          70

           

          42

           

          63

          Fair value

          $

          1,285.5

           

          $

          445.6

           

          $

          740.4

          Cost

          $

          1,104.6

           

          $

          488.9

           

          $

          769.0

          Debt investments as a % of portfolio (at cost)

          65.8

          %

          93.0

          %

          93.8

          %

          Equity investments as a % of portfolio (at cost)

          34.2

          %

          7.0

          %

          6.2

          %

          % of debt investments at cost secured by first priority lien

          98.1

          %

          92.4

          %

          95.4

          %

          Weighted-average annual effective yield (b)

          11.6

          %

          7.9

          %

          8.7

          %

          Average EBITDA (c)

          $

          5.3

           

          $

          76.5

           

          $

          58.1


          (a)At December 31, 2020, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 38%.
          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2020, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt
           
           As of December 31, 2018 
           
           LMM(a) Middle
          Market
           Private
          Loan
           
           
           (dollars in millions)
           

          Number of portfolio companies

            69  56  59 

          Fair value

           $1,195.0 $576.9 $507.9 

          Cost

           $990.9 $608.8 $553.3 

          % of portfolio at cost — debt

            68.7%  96.3%  93.0% 

          % of portfolio at cost — equity

            31.3%  3.7%  7.0% 

          % of debt investments at cost secured by first priority lien

            98.5%  87.9%  92.0% 

          Weighted-average annual effective yield(b)

            12.3%  9.6%  10.4% 

          Average EBITDA(c)

           $4.7 $99.1 $46.1 

          145


          (a)
          At December 31, 2018, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 40%.

          (b)
          The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2018, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies, one Middle Market portfolio company and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's

          Table of Contents

          investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect Main Street’s expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, one Middle Market portfolio company and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

              

          As of December 31, 2019

           

          LMM (a)

          Middle Market

          Private Loan

           

          (dollars in millions)

           

          Number of portfolio companies

          69

           

          51

           

          65

          Fair value

          $

          1,206.9

           

          $

          522.1

           

          $

          692.1

          Cost

          $

          1,002.2

           

          $

          572.3

           

          $

          734.8

          Debt investments as a % of portfolio (at cost)

          65.9

          %

          94.8

          %

          94.6

          %

          Equity investments as a % of portfolio (at cost)

          34.1

          %

          5.2

          %

          5.4

          %

          % of debt investments at cost secured by first priority lien

          98.1

          %

          91.3

          %

          95.4

          %

          Weighted-average annual effective yield (b)

          11.8

          %

          8.6

          %

          9.5

          %

          Average EBITDA (c)

          $

          5.1

           

          $

          85.0

           

          $

          57.8

           
           As of December 31, 2017 
           
           LMM(a) Middle
          Market
           Private
          Loan
           
           
           (dollars in millions)
           

          Number of portfolio companies

            70  62  54 

          Fair value

           $948.2 $609.3 $467.5 

          Cost

           $776.5 $629.7 $489.2 

          % of portfolio at cost — debt

            67.1%  97.3%  93.6% 

          % of portfolio at cost — equity

            32.9%  2.7%  6.4% 

          % of debt investments at cost secured by first priority lien

            98.1%  90.5%  94.5% 

          Weighted-average annual effective yield(b)

            12.0%  9.0%  9.2% 

          Average EBITDA(c)

           $4.4 $78.3 $39.6 

          (a)At December 31, 2019, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 42%.
          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2019, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect Main Street’s expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, two Middle Market portfolio companies and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.
          (a)
          At December 31, 2017, Main Street had equity ownership in approximately 97% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 39%.

          (b)
          The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2017, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including six LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

          As of December 31, 2018,2020, Main Street had Other Portfolio investments in twelve companies, collectively totaling approximately $96.6 million in fair value and approximately $124.7 million in cost basis and which comprised approximately 3.6% of Main Street’s Investment Portfolio at fair value. As of December 31, 2019, Main Street had Other Portfolio investments in eleven companies, collectively totaling approximately $108.3$106.7 million in fair value and approximately $116.0$118.4 million in cost basis and which comprised approximately 4.4%4.1% of Main Street's Investment Portfolio at fair value. As of December 31, 2017, Main Street had Other Portfolio investments in eleven companies, collectively totaling approximately $104.6 million in fair value and approximately $109.4 million in cost basis and which comprised approximately 4.8% of Main Street'sStreet’s Investment Portfolio at fair value.

          As discussed further in Note A.1., Main Street holds an investment in the External Investment Manager, a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2018,2020, there was a $29.5 million cost basis in this investment and the investment had a fair value of approximately $116.8 million, which comprised approximately 4.3% of Main Street’s Investment Portfolio at fair value. As of December 31, 2019, there was no cost basis in this investment and the investment had a fair value of approximately $65.7$74.5 million, which comprised approximately 2.7%2.9% of Main Street's Investment Portfolio at fair value. As of December 31, 2017, there was no cost basis in this investment and the investment had a fair value of approximately $41.8 million, which comprised approximately 1.9% of Main Street'sStreet’s Investment Portfolio at fair value.

          The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at cost and fair value by type of investment

          146


          as a percentage of the total combined LMM portfolio investments, Middle


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Market portfolio investments and Private Loan portfolio investments, as of December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager).

          Cost:
           December 31,
          2018
           December 31,
          2017
           

           

          December 31, 2020

           

          December 31, 2019

          First lien debt

           77.1% 79.0% 

           

          77.0

          %  

          78.2

          %

          Equity

           16.6% 15.3% 

           

          19.0

          %  

          17.2

          %

          Second lien debt

           5.3% 4.5% 

           

          2.7

          %  

          3.5

          %

          Equity warrants

           0.6% 0.7% 

           

          0.5

          %  

          0.6

          %

          Other

           0.4% 0.5% 

           

          0.8

          %  

          0.5

          %

           

          100.0

          %  

          100.0

          %

           100.0% 100.0% 


          Fair Value:
           December 31,
          2018
           December 31,
          2017
           

           

          December 31, 2020

           

          December 31, 2019

           

          First lien debt

           69.0% 70.5% 

           

          70.0

          %  

          70.1

          %

           

          Equity

           25.5% 24.4% 

           

          26.4

          %  

          26.0

          %

           

          Second lien debt

           4.6% 4.1% 

           

          2.4

          %  

          3.0

          %

           

          Equity warrants

           0.5% 0.6% 

           

          0.4

          %  

          0.4

          %

           

          Other

           0.4% 0.4% 

           

          0.8

          %  

          0.5

          %

           

           

          100.0

          %  

          100.0

          %

           

           100.0% 100.0% 

          The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments, as of December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

          Cost:

           

          December 31, 2020

           

          December 31, 2019

           

          Southwest

           

          24.3

          %  

          25.0

          %

           

          Northeast

           

          22.6

          %  

          14.8

          %

           

          West

           

          21.0

          %  

          24.6

          %

           

          Midwest

           

          18.2

          %  

          20.6

          %

           

          Southeast

           

          12.8

          %  

          13.2

          %

           

          Canada

           

          1.1

          %  

          1.2

          %

           

          Other Non-United States

           

          0.0

          %  

          0.6

          %

           

           

          100.0

          %  

          100.0

          %

           

          Fair Value:

           

          December 31, 2020

           

          December 31, 2019

           

          Southwest

           

          24.7

          %  

          26.7

          %

           

          Northeast

           

          21.7

          %  

          14.4

          %

           

          West

           

          21.4

          %  

          25.1

          %

           

          Midwest

           

          19.7

          %  

          20.6

          %

           

          Southeast

           

          11.5

          %  

          11.6

          %

           

          Canada

           

          1.0

          %  

          1.1

          %

           

          Other Non-United States

           

          0.0

          %  

          0.5

          %

           

           

          100.0

          %  

          100.0

          %

           

          Cost:
           December 31,
          2018
           December 31,
          2017
           

          West

            27.2%  20.7% 

          Southwest

            26.7%  26.1% 

          Midwest

            19.4%  22.3% 

          Northeast

            14.3%  15.2% 

          Southeast

            10.0%  12.8% 

          Canada

            1.4%  1.9% 

          Other Non-United States

            1.0%  1.0% 

            100.0%  100.0% 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)


          Fair Value:
           December 31,
          2018
           December 31,
          2017
           

          Southwest

            28.4%  26.8% 

          West

            28.2%  23.7% 

          Midwest

            18.9%  20.3% 

          Northeast

            13.4%  14.6% 

          Southeast

            8.9%  11.9% 

          Canada

            1.2%  1.8% 

          Other Non-United States

            1.0%  0.9% 

            100.0%  100.0% 

          Main Street'sStreet’s LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle Market portfolio investments and

          147


          Private Loan portfolio investments by industry at cost and fair value as of


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          December 31, 20182020 and 20172019 (this information excludes the Other Portfolio investments and the External Investment Manager).

          Cost:

          December 31, 2020

          December 31, 2019

          Machinery

           

          6.4

          %  

          7.7

          %

          Construction & Engineering

           

          6.0

          %  

          5.4

          %

          Aerospace & Defense

           

          5.9

          %  

          4.9

          %

          Internet Software & Services

           

          5.2

          %  

          4.1

          %

          Health Care Providers & Services

           

          5.1

          %  

          4.5

          %

          Professional Services

           

          5.1

          %  

          2.9

          %

          Commercial Services & Supplies

           

          4.7

          %  

          6.1

          %

          Energy Equipment & Services

           

          4.5

          %  

          5.4

          %

          Software

           

          4.4

          %  

          2.4

          %

          Leisure Equipment & Products

           

          4.2

          %  

          3.8

          %

          IT Services

           

          4.0

          %  

          4.6

          %

          Communications Equipment

           

          3.3

          %  

          3.1

          %

          Oil, Gas & Consumable Fuels

           

          3.2

          %  

          3.6

          %

          Specialty Retail

           

          3.1

          %  

          3.1

          %

          Hotels, Restaurants & Leisure

           

          2.6

          %  

          3.7

          %

          Diversified Telecommunication Services

           

          2.6

          %  

          3.9

          %

          Food Products

           

          2.6

          %  

          3.0

          %

          Tobacco

           

          2.2

          %  

          %

          Media

           

          2.1

          %  

          5.3

          %

          Distributors

           

          2.1

          %  

          1.1

          %

          Diversified Financial Services

           

          2.1

          %  

          1.9

          %

          Electronic Equipment, Instruments & Components

           

          1.9

          %  

          3.5

          %

          Containers & Packaging

           

          1.6

          %  

          1.7

          %

          Computers & Peripherals

           

          1.5

          %  

          2.3

          %

          Building Products

           

          1.4

          %  

          1.3

          %

          Life Sciences Tools & Services

           

          1.4

          %  

          %

          Household Durables

           

          1.3

          %  

          0.2

          %

          Trading Companies & Distributors

           

          1.2

          %  

          %

          Diversified Consumer Services

           

          1.0

          %  

          0.4

          %

          Transportation Infrastructure

           

          1.0

          %  

          1.0

          %

          Food & Staples Retailing

          1.0

          %  

          1.0

          %

          Chemicals

          0.9

          %  

          1.0

          %

          Construction Materials

          0.5

          %  

          1.0

          %

          Road & Rail

          0.4

          %  

          1.4

          %

          Other (1)

          3.5

          %  

          4.7

          %

           

          100.0

          %  

          100.0

          %


          (1)Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

          Cost:
           December 31,
          2018
           December 31,
          2017
           

          Construction & Engineering

            7.5%  6.4% 

          Media

            6.5%  4.4% 

          Machinery

            6.5%  5.2% 

          Energy Equipment & Services

            6.4%  6.9% 

          Commercial Services & Supplies

            4.9%  4.5% 

          Diversified Telecommunication Services

            4.8%  4.1% 

          Specialty Retail

            4.2%  5.3% 

          Internet Software & Services

            4.1%  3.4% 

          Leisure Equipment & Products

            3.9%  3.0% 

          IT Services

            3.8%  3.9% 

          Aerospace & Defense

            3.8%  3.3% 

          Food Products

            3.8%  1.9% 

          Electronic Equipment, Instruments & Components

            3.5%  3.4% 

          Hotels, Restaurants & Leisure

            3.3%  6.2% 

          Oil, Gas & Consumable Fuels

            3.0%  1.6% 

          Health Care Providers & Services

            2.8%  2.9% 

          Professional Services

            2.6%  3.7% 

          Computers & Peripherals

            2.6%  2.8% 

          Software

            2.6%  2.5% 

          Communications Equipment

            2.5%  2.3% 

          Containers & Packaging

            1.9%  0.0% 

          Construction Materials

            1.8%  1.7% 

          Road & Rail

            1.8%  1.0% 

          Distributors

            1.7%  1.9% 

          Building Products

            1.6%  1.9% 

          Internet & Catalog Retail

            1.1%  1.3% 

          Diversified Financial Services

            0.6%  1.6% 

          Health Care Equipment & Supplies

            0.6%  2.0% 

          Diversified Consumer Services

            0.4%  1.6% 

          Real Estate Management & Development

            0.3%  1.0% 

          Auto Components

            0.0%  1.9% 

          Other(1)

            5.1%  6.4% 

            100.0%  100.0% 

          148


          (1)
          Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Fair Value:
           December 31,
          2018
           December 31,
          2017
           

          December 31, 2020

          December 31, 2019

          Machinery

           8.8% 6.4% 

           

          8.1

          %  

          9.9

          %

          Construction & Engineering

           7.9% 6.3% 

           

          6.1

          %  

          5.6

          %

          Aerospace & Defense

           

          5.7

          %  

          4.7

          %

          Health Care Providers & Services

           

          5.2

          %  

          4.3

          %

          Software

           

          4.6

          %  

          2.7

          %

          Commercial Services & Supplies

           

          4.5

          %  

          5.5

          %

          Internet Software & Services

           

          4.5

          %  

          3.8

          %

          Leisure Equipment & Products

           

          4.0

          %  

          3.5

          %

          Professional Services

           

          4.0

          %  

          2.2

          %

          IT Services

           

          3.8

          %  

          4.8

          %

          Specialty Retail

           

          3.4

          %  

          3.4

          %

          Energy Equipment & Services

           5.7% 6.2% 

           

          3.0

          %  

          4.9

          %

          Diversified Consumer Services

           

          3.0

          %  

          2.2

          %

          Computers & Peripherals

           

          2.9

          %  

          3.8

          %

          Communications Equipment

           

          2.7

          %  

          2.7

          %

          Oil, Gas & Consumable Fuels

           

          2.7

          %  

          3.2

          %

          Media

           5.4% 3.8% 

           

          2.5

          %  

          4.7

          %

          Commercial Services & Supplies

           4.4% 4.1% 

          Specialty Retail

           4.2% 5.3% 

          Diversified Financial Services

           

          2.3

          %  

          2.1

          %

          Food Products

           

          2.2

          %  

          2.7

          %

          Distributors

           

          2.1

          %  

          1.0

          %

          Tobacco

           

          2.1

          %  

          %

          Diversified Telecommunication Services

           4.0% 3.4% 

           

          2.0

          %  

          3.3

          %

          IT Services

           3.9% 4.0% 

          Internet Software & Services

           3.8% 3.2% 

          Computers & Peripherals

           3.8% 3.0% 

          Leisure Equipment & Products

           3.7% 2.9% 

          Aerospace & Defense

           3.5% 3.1% 

          Food Products

           3.5% 1.8% 

          Hotels, Restaurants & Leisure

           3.2% 5.9% 

           

          2.0

          %  

          3.3

          %

          Diversified Consumer Services

           2.9% 5.9% 

          Software

           2.9% 2.5% 

          Containers & Packaging

           

          1.7

          %  

          1.7

          %

          Building Products

           

          1.4

          %  

          1.2

          %

          Life Sciences Tools & Services

           

          1.4

          %  

          %

          Construction Materials

           

          1.4

          %  

          1.5

          %

          Electronic Equipment, Instruments & Components

           2.8% 2.8% 

           

          1.3

          %  

          2.7

          %

          Health Care Providers & Services

           2.7% 2.8% 

          Oil, Gas & Consumable Fuels

           2.7% 1.5% 

          Professional Services

           2.4% 3.5% 

          Communications Equipment

           2.2% 2.2% 

          Construction Materials

           2.1% 1.9% 

          Containers & Packaging

           1.8% 0.0% 

          Household Durables

           

          1.3

          %  

          0.1

          %

          Trading Companies & Distributors

          1.2

          %  

          %  

          Transportation Infrastructure

          1.0

          %  

          1.0

          %  

          Food & Staples Retailing

          0.9

          %  

          1.0

          %  

          Road & Rail

           1.8% 1.0% 

          0.6

          %  

          1.5

          %  

          Building Products

           1.6% 1.8% 

          Distributors

           1.5% 1.8% 

          Diversified Financial Services

           0.9% 1.6% 

          Internet & Catalog Retail

           0.8% 1.1% 

          Air Freight & Logistics

           0.6% 1.0% 

          Health Care Equipment & Supplies

           0.5% 2.1% 

          Real Estate Management & Development

           0.4% 1.1% 

          Auto Components

           0.0% 1.6% 

          Other(1)

           3.6% 4.4% 

          Other (1)

          4.4

          %  

          5.0

          %  

          100.0

          %  

          100.0

          %  

           100.0% 100.0% 

          (1)Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.
          (1)
          Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

          At December 31, 20182020 and 2017,2019, Main Street had no portfolio investment that was greater than 10% of the Investment Portfolio at fair value.

          Unconsolidated Significant Subsidiaries

          In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, Main Street must determine which of its unconsolidated controlled portfolio companies, if any, are considered "significant“significant subsidiaries."” On May 20, 2020, the SEC published in Release No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, amendments to Rule 1-02(w)(2) of Regulation S-X used in the determination of a significant subsidiary specific to investment companies, including BDCs. The amendments become effective on January 1, 2021, but the SEC allowed for early application. Main Street elected to apply these revisions effective June 30, 2020. In evaluating theseits unconsolidated controlled portfolio companies in accordance with the revised rules, there are threetwo tests utilizedthat Main Street must utilize to determine if any of Main


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Street's Street’s Control Investments (as defined in Note A, including those

          149


          unconsolidated portfolio companies defined as Control Investments in which Main Street does not own greater than 50% of the voting securities)securities or maintain greater than 50% of the board representation) are considered significant subsidiaries: the investment test the asset test and the income test. The investment test is generally measured by dividing Main Street’s investment in the Control Investment by the value of Main Street’s total investments. The income test isgenerally measured by dividing the absolute value of the combined totalsum of total investment income, net realized gain (loss) and net unrealized appreciation (depreciation) from eachthe relevant Control Investment for the period being tested by the absolute value of Main Street's pre-tax incomeStreet’s change in net assets resulting from operations for the same period. RuleRules 3-09 and 4-08(g) of Regulation S-X, as interpreted by the SEC, requiresrequire Main Street to include (1) separate audited financial statements of an unconsolidated majority-owned subsidiary (Control Investments in which Main Street owns greater than 50% of the voting securities) in an annual report if any of the three tests exceed 20% of Main Street's total investments at fair value, total assets or total income, respectively. Rule 4-08(g) of Regulation S-X requiresand (2) summarized financial information of a Control Investment in an annual report if any of the three tests exceeds 10% of Main Street's annual total amounts and Rule 10-01(b)(1) of Regulation S-X requires summarized financial information in a quarterly report, respectively, if anycertain thresholds of the threeinvestment or income tests exceeds 20% of Main Street's year-to-date total amounts.are exceeded and the unconsolidated portfolio company qualifies as a significant subsidiary.

          As of December 31, 20182020, 2019 and 2017,2018, Main Street had no single investment that represented greater than 10% of its total Investment Portfolio at fair value and no single investment whose total assets represented greater than 10% of its total assets. After performing the income test for the year ended December 31, 2018, Main Street determined that its income from three of its Control Investments individually generated more than 10% of its total income, primarily due to the unrealized appreciation that was recognized on the investments. As such, Gamber Johnson Holdings, LLC ("GJH"), GRT Rubber Technologies LLC ("GRT") and the wholly owned External Investment Manager were each considered significant subsidiaries at the 10% income level (see further discussion and summarized financial information of the External Investment Manager in Note D). Additionally, after performing the income test for the years ended December 31, 2017 and 2016, Main Street determined that its income from one of its Control Investments individually generated more than 10% of its total income, primarily due to unrealized appreciation that was recognized on the investment. As such, CBT Nuggets, LLC ("CBT"), an unconsolidated portfolio company that was a Control Investment, but for which Main Street was not the majority owner and did not have rights to maintain greater than 50% of the board representation, was consideredqualified as a significant subsidiary atunder either the 10% level as of December 31, 2017 and 2016.investment or income tests.

                 The following table shows the summarized financial information for CBT:

           
           As of December 31, 
           
           2018 2017 
           
           (dollars in thousands)
           

          Balance Sheet Data

                 

          Current Assets

           $4,025 $14,585 

          Noncurrent Assets

            11,372  11,769 

          Current Liabilities

            15,103  17,570 

          Noncurrent Liabilities

               


           
           Twelve Months Ended December 31, 
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Summary of Operations

                    

          Total Revenue

           $39,209 $40,802 $38,779 

          Gross Profit

            35,160  35,837  33,661 

          Income from Operations

            3,978  9,018  13,117 

          Net Income

            4,868  18,379  12,819 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

                 The following table shows the summarized financial information for GJH:

           
           As of December 31, 
           
           2018 2017 
           
           (dollars in thousands)
           

          Balance Sheet Data

                 

          Current Assets

           $17,113 $13,473 

          Noncurrent Assets

            38,038  37,177 

          Current Liabilities

            6,825  5,769 

          Noncurrent Liabilities

            26,857  27,959 


           
           Twelve Months Ended
          December 31,
           
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Summary of Operations

                    

          Total Revenue

           $53,715 $42,429 $31,581 

          Gross Profit

            20,927  17,067  13,380 

          Income from Operations

            5,374  3,149  3,712 

          Net Income

            2,799  (486) 1,865 

                 The following table shows the summarized financial information for GRT:

           
           As of December 31, 
           
           2018 2017 
           
           (dollars in thousands)
           

          Balance Sheet Data

                 

          Current Assets

           $8,399 $8,375 

          Noncurrent Assets

            24,242  28,121 

          Current Liabilities

            2,870  3,577 

          Noncurrent Liabilities

            14,445  15,876 


           
           Twelve Months Ended
          December 31,
           
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Summary of Operations

                    

          Total Revenue

           $37,821 $31,165 $26,140 

          Gross Profit

            9,526  6,737  6,330 

          Income from Operations

            4,934  2,329  2,181 

          Net Income

            2,470  (103) (270)

          NOTE D — D—EXTERNAL INVESTMENT MANAGER

          As discussed further in Note A.1., the External Investment Manager provides investment management and other services to External Parties. The External Investment Manager is accounted for as a portfolio investment of MSCC since the External Investment Manager conducts all of its investment management activities for External Parties.

          During May 2012, Main Street entered into an investment sub-advisory agreement with HMS Adviser, LP ("(“HMS Adviser"Adviser”), which iswas the investment advisor to HMSMSC Income a non-listed BDC,at the time, to


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow it to own a registered investment adviser, Main Street assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on MSCC'sMSCC’s ability to meet the source-of-income requirement necessary for it to maintain its RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager iswas entitled to 50% of the annual base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with MSC Income. Effective October 30, 2020, the External Investment Manager and HMS Income. Adviser consummated the transactions contemplated by that certain asset purchase agreement by and among the External Investment Manager, HMS Adviser and the other parties thereto whereby the External Investment Manager became the sole investment adviser and administrator to MSC Income pursuant to an Investment Advisory and Administrative Services Agreement entered into between the External Investment Manager and MSC Income (the “Advisory Agreement”). The Advisory Agreement includes a 1.75% annual management fee, reduced from 2.00%, and the same incentive fee as under MSC Income’s prior advisory agreement with HMS Adviser, with the External Investment Manager receiving 100% of such fee income (increased from 50% previously).

          The External Investment Manager has conditionally agreed to waive the historical incentive fees otherwise earned.earned through December 31, 2018. During the yearsyear ended December 31, 2018, 2017 and 2016,2020, the External Investment Manager earned $10.7 million in base management fee income and no incentive fees compared to $11.1 million of base management fees and $2.0 million in incentive fees in 2019 and $11.6 million $10.9 million and $9.5 million, respectively, of base management fees (net of fees waived, if any) underin 2018 for the sub-advisory agreement with HMS Adviser.investment advisory services provided to MSC Income.

          The investment in the External Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Street and approved, in good faith, by Main Street'sStreet’s Board of Directors. Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach (see further discussion in Note B.1.). Any change in fair value of the investment in the External Investment Manager is recognized on Main Street'sStreet’s consolidated statements of operations in "Net“Net Unrealized Appreciation (Depreciation)—Control investments."

          The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio

          150


          investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. Main Street owns the External Investment Manager through the Taxable Subsidiary to allow MSCC to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The taxable income, or loss, of the External Investment Manager may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. As a result of the above described financial reporting and tax treatment, the External Investment Manager provides for any income tax expense, or benefit, and any tax assets or liabilities in its separate financial statements.

          Main Street shares employees with the External Investment Manager and allocates costs related to such shared employees to the External Investment Manager generally based on a combination of the direct time spent, new investment origination activity and assets under management, depending on the nature of the expense. For the years ended December 31, 2018, 20172020, 2019 and 2016,2018, Main Street allocated $6.8$7.4 million, $6.4$6.7 million and $5.1$6.8 million of total expenses, respectively, to the External Investment Manager. The total contribution of the External Investment Manager to Main Street'sStreet’s net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income receivedearned from the External Investment Manager. For the years ended December 31, 2018, 20172020, 2019 and 2016,2018, the total contribution to Main Street'sStreet’s net investment income was $9.9 million, $11.7 million and $10.6 million, $9.4 million and $7.9 million, respectively.


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Summarized financial information from the separate financial statements of the External Investment Manager as of December 31, 20182020 and 20172019 and for the years ended December 31, 2018, 20172020, 2019 and 20162018 is as follows:

          As of 

          As of 

          December 31, 

          December 31, 

              

          2020

              

          2019

          (dollars in thousands)

          Cash

          $

          $

          Accounts receivable—MSC Income Fund

           

          3,520

           

          2,708

          Total assets

          $

          3,520

          $

          2,708

          Accounts payable to MSCC and its subsidiaries

          $

          2,423

          $

          1,592

          Dividend payable to MSCC and its subsidiaries

           

          1,097

           

          1,116

          Equity

           

           

          Total liabilities and equity

          $

          3,520

          $

          2,708

          Twelve Months Ended 

          December 31, 

              

          2020

              

          2019

              

          2018

          (dollars in thousands)

          Management fee income

          $

          10,665

          $

          11,116

          $

          11,592

          Incentive fees

           

           

          1,972

           

          Total revenues

           

          10,665

           

          13,088

           

          11,592

          Expenses allocated from MSCC or its subsidiaries:

          ��

           

           

            

          Salaries, share‑based compensation and other personnel costs

          (4,984)

          (4,388)

          (4,324)

          Other G&A expenses

          (2,445)

          (2,284)

          (2,444)

          Total allocated expenses

           

          (7,429)

           

          (6,672)

           

          (6,768)

          Pre‑tax income

           

          3,236

           

          6,416

           

          4,824

          Tax expense

           

          (745)

           

          (1,427)

           

          (1,002)

          Net income

          $

          2,491

          $

          4,989

          $

          3,822

          151


          NOTE E—DEBT

          Summary of debt as of December 31, 2020 is as follows:

              

          Outstanding Balance

              

          Unamortized Debt Issuance Costs/Premiums

              

          Recorded Value

              

          Estimated Fair Value (1)

          (in thousands)

          SBIC Debentures

          $

          309,800

          $

          (5,828)

          $

          303,972

          $

          309,907

          Credit Facility

          269,000

          -

          269,000

          269,000

          4.50% Notes due 2022

          185,000

          (1,164)

          183,836

          194,938

          5.20% Notes due 2024

          450,000

          1,817

          451,817

          488,102

          Total Debt

          $

          1,213,800

          $

          (5,175)

          $

          1,208,625

          $

          1,261,947

          Summary of debt as of December 31, 2019 is as follows:

              

          Outstanding Balance

              

          Unamortized Debt Issuance Costs/Premiums and Fair Value Adjustments

              

          Recorded Value

              

          Estimated Fair Value (1)

          (in thousands)

          SBIC Debentures

          $

          311,800

          $

          (5,612)

          $

          306,188

          $

          310,210

          Credit Facility

          300,000

          -

          300,000

          300,000

          4.50% Notes due 2022

          185,000

          (1,771)

          183,229

          194,812

          5.20% Notes due 2024

          325,000

          (405)

          324,595

          350,929

          Total Debt

          $

          1,121,800

          $

          (7,788)

          $

          1,114,012

          $

          1,155,951


          (1)Estimated fair value for outstanding debt if Main Street had adopted the fair value option under ASC 825.

          Summarized interest expense for the twelve months ended December 31, 2020, 2019 and 2018 is as follows (in thousands):


           As of
          December 31,
           

           2018 2017 

           (dollars in thousands)
           

          Cash

           $ $ 

          Accounts receivable — HMS Income

           2,947 2,863 

          Total assets

           $2,947 $2,863 

          Twelve Months Ended December 31, 

          2020

              

          2019

              

          2018

          Accounts payable to MSCC and its subsidiaries

           $1,786 $1,963 

          Dividend payable to MSCC and its subsidiaries

           1,161 900 

          Equity

             

          Total liabilities and equity

           $2,947 $2,863 

          SBIC Debentures

          $

          11,867

          $

          12,739

          $

          12,754

          Credit Facility

          9,232

          10,974

          11,723

          6.125% Notes

          -

          -

          1,464

          4.50% Notes Due 2019

          -

          7,881

          8,597

          4.50% Notes Due 2022

          8,932

          8,932

          8,955

          5.20% Notes Due 2024

          19,556

          9,732

          -

          Total Interest Expense

          $

          49,587

          $

          50,258

          $

          43,493


           
           Year Ended December 31, 
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Management fee income

           $11,592 $10,946 $9,540 

          Expenses allocated from MSCC or its subsidiaries:

                    

          Salaries, share-based compensation and other personnel costs

            (4,324) (3,989) (3,470)

          Other G&A expenses

            (2,444) (2,381) (1,619)

          Total allocated expenses

            (6,768) (6,370) (5,089)

          Pre-tax income

            4,824  4,576  4,451 

          Tax expense

            (1,002) (1,544) (1,623)

          Net income

           $3,822 $3,032 $2,828 

          NOTE E — DEBT

          SBIC Debentures

          Under existing SBASBIC regulations, SBA approvedSBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million. Main Street, through the Funds, has an effective maximum amount of $346.0 million following the prepayment of $4.0 million of existing SBIC debentures as discussed below.Street’s SBIC debentures payable, under existing SBA-approved commitments, were $345.8$309.8 million and $295.8$311.8 million at December 31, 20182020 and 2017,2019, respectively. SBIC debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. During the year ended December 31, 2018,2020, Main Street issued $54.0$40.0 million of SBIC debentures and opportunistically prepaid $4.0the remaining $42.0 million of existing SBIC debentures as part of an effort to manage the maturity dates of the oldestMSC II SBIC debentures. As a result of this prepayment, Main Street recognized a realized loss of $1.4$0.5 million, due primarily to the previously recognized gain recorded as a result of recording the MSC II debentures at fair value on the datewrite-off of the acquisition of the majority interests of MSC II. The effect of the realized loss is offset by the reversal of all previously recognized unrealized depreciation due to fair value adjustments since the date of the acquisition.related unamortized deferred financing costs. Main Street expects to issue new SBIC debentures under the SBIC

          152


          program in the future in an amount up to the regulatory maximum amount for affiliated SBIC funds. The weighted-average annual


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          interest rate on the SBIC debentures was 3.7%3.4% and 3.6% as of December 31, 20182020 and 2017,2019, respectively. The first principal maturity due under the existing SBIC debentures is in 2019,2021, and the weighted-average remaining duration as of December 31, 20182020 was approximately 5.65.4 years. For the years ended December 31, 2018, 2017 and 2016, Main Street recognized interest expense, including the amortization of upfront leverage and other miscellaneous fees, attributable to the SBIC debentures of $12.8 million, $10.5 million and $10.0 million, respectively. In accordance with SBASBIC regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA.

          As of December 31, 2018,2020, the recorded value of the SBIC debentures was $338.2$304.0 million, which consisted of (i)  $44.7 million recorded at fair value, or $1.3 million less than the $46.0 million par value of the SBIC debentures issued in MSC II, (ii) $149.8$134.8 million par value of SBIC debentures outstanding held inissued by MSMF, with a recorded value of $148.0$133.3 million that was net of unamortized debt issuance costs of $1.8$1.5 million and (iii) $150.0(ii) $175.0 million par value of SBIC debentures held inissued by MSC III with a recorded value of $145.5$170.7 million that was net of unamortized debt issuance costs of $4.5$4.3 million. As of December 31, 2018, if Main Street had adopted the fair value option under ASC 825 for all of its SBIC debentures, Main Street estimates the fair value of its SBIC debentures would be approximately $310.0 million, or $35.8 million less than the $345.8 million face value of the SBIC debentures.

          The maturity dates and fixed interest rates for Main Street'sStreet’s SBIC Debentures as of December 31, 20182020 and 20172019 are summarized in the following table:

          Fixed

          Interest

          December 31, 

          December 31, 

          Maturity Date

          Rate

          2020

          2019

          9/1/2020

          3.50

          %

          $

          -

          $

          35,000,000

          9/1/2020

          3.93

          %

          -

          2,000,000

          3/1/2021

          4.37

          %

          10,000,000

          10,000,000

          3/1/2021

          4.60

          %

          20,000,000

          20,000,000

          9/1/2021

          3.39

          %

          10,000,000

          10,000,000

          9/1/2022

          2.53

          %

          -

          5,000,000

          3/1/2023

          3.16

          %

          16,000,000

          16,000,000

          3/1/2024

          3.95

          %

          39,000,000

          39,000,000

          3/1/2024

          3.55

          %

          24,800,000

          24,800,000

          3/1/2027

          3.52

          %

          40,400,000

          40,400,000

          9/1/2027

          3.19

          %

          34,600,000

          34,600,000

          3/1/2028

          3.41

          %

          43,000,000

          43,000,000

          9/1/2028

          3.55

          %

          32,000,000

          32,000,000

          3/1/2030

          2.35

          %

          15,000,000

          -

          9/1/2030

          1.13

          %

          10,000,000

          -

          9/1/2030

          1.31

          %

          10,000,000

          -

          3/1/2031

          (1)

          0.81

          %

          5,000,000

          -

          Ending Balance

          $

          309,800,000

          $

          311,800,000


          (1)The interest rate for this tranche of SBIC debentures represents an initial rate that has not been fixed by the SBA as of December 31, 2020. In March 2021, the rate for this tranche of SBIC debentures will be determined and, thereafter, the rate will be fixed for the ensuing 10 years.
          Maturity Date
           Fixed
          Interest
          Rate
           December 31,
          2018
           December 31,
          2017
           

          9/1/2019

            4.95% 16,000,000  20,000,000 

          3/1/2020

            4.51% 10,000,000  10,000,000 

          9/1/2020

            3.50% 35,000,000  35,000,000 

          9/1/2020

            3.93% 10,000,000  10,000,000 

          3/1/2021

            4.37% 10,000,000  10,000,000 

          3/1/2021

            4.60% 20,000,000  20,000,000 

          9/1/2021

            3.39% 10,000,000  10,000,000 

          9/1/2022

            2.53% 5,000,000  5,000,000 

          3/1/2023

            3.16% 16,000,000  16,000,000 

          3/1/2024

            3.95% 39,000,000  39,000,000 

          3/1/2024

            3.55% 24,800,000  24,800,000 

          3/1/2027

            3.52% 40,400,000  40,400,000 

          9/1/2027

            3.19% 34,600,000  34,600,000 

          3/1/2028

            3.41% 43,000,000  21,000,000 

          9/1/2028

            3.55% 32,000,000   

          Ending Balance

               345,800,000  295,800,000 

          Credit Facility

          Main Street maintains the Credit Facility to provide additional liquidity to support its investment and operational activities. The Credit Facility was amended and restated during 2018 to provide for an increase inincludes total commitments of $780.0 million from $585.0 million to $705.0 million and to increase thea diversified group of lenders to eighteen, eliminate interest rate adjustments previously subject to Main Street's maintenance of an investment grade rating and extend the final maturity by two years to September 2023.19 lenders. The amended Credit Facility alsomatures in September 2023 and contains an upsized accordion feature which allows Main Street to increase the total commitments under the


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          facility to up to $800.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

          Borrowings under the Credit Facility bear interest, subject to Main Street'sStreet’s election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable LIBOR rate (2.5%(0.2% as of the most recent reset date for the period ended December 31, 2018)2020) plus (i) 1.875% (or the applicable base rate (Prime Rate of 5.5%3.25% as of December 31, 2018)2020) plus 0.875%) as long as Main Street meets certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) otherwise. Main Street pays unused

          153


          commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining an asset coverage ratio (tangible net worth to Credit Facility borrowings) of at least 1.5 to 1.0 and (iv) maintaining a minimum tangible net worth. The Credit Facility is provided on a revolving basis through its final maturity date in September 2023, and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval.

                 At December 31, 2018, Main Street had $301.0 million in borrowings outstanding under the Credit Facility. As of December 31, 2018, if Main Street had adopted the fair value option under ASC 825 for its Credit Facility, Main Street estimates its fair value would approximate its recorded value. Main Street recognized interest expense related to the Credit Facility, including unused commitment fees and amortization of deferred issuance costs, of $11.7 million, $10.6 million and $9.2 million, respectively, for the years ended December 31, 2018, 2017 and 2016. As of December 31, 2018,2020, the interest rate on the Credit Facility was 4.2% and the2.0%. The average interest rate for borrowings under the Credit Facility was 2.5% and 4.1% for the year ended December 31, 2018 was 3.9%.2020 and 2019, respectively. As of December 31, 2018,2020, Main Street was in compliance with all financial covenants of the Credit Facility.

          6.125% Notes

          In April 2013,Main Street issued $92.0 million, including the underwriters'underwriters’ full exercise of their option to purchase additional principal amounts to cover over-allotments, in aggregate principal amount of 6.125% Notes due 2023 (the "6.125% Notes"“6.125% Notes”). The 6.125% Notes bore interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. The total net proceeds to Main Street from the 6.125% Notes, after underwriting discounts and estimated offering expenses payable, were approximately $89.0 million. On April 2, 2018, Main Street redeemed the entire principal amount of the issued and outstanding 6.125% Notes, effective April 1, 2018 (the "Redemption Date"“Redemption Date”). The 6.125% Notes were redeemed, at par value plus the accrued and unpaid interest thereon from January 1, 2018 through, but excluding, the Redemption Date. As part of the redemption, Main Street recognized a realized loss on extinguishment of debt of $1.5 million in the second quarter of 2018 related to the write-off of the related unamortized deferred financing costs. Main Street recognized interest expense related to the 6.125% Notes, including amortization of unamortized deferred issuance costs, of $1.5 million for the year ended December 31 2018 and $5.9 million for each of the years ended December 31, 2017 and 2016.

          4.50% Notes due 2019

          In November 2014, Main Street issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50%“4.50% Notes due 2019"2019”) at an issue price of 99.53%. The 4.50% Notes due 2019 bore interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. On December 2, 2019, Main Street repaid the entire principal amount of the issued and outstanding 4.50% Notes due 2019, effective December 1, 2019 (the “Maturity Date”), at par value plus the accrued and unpaid interest thereon from June 1, 2019 through the Maturity Date.

          4.50% Notes due 2022

          In November 2017, Main Street issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due December 1, 2022 (the “4.50% Notes”) at an issue price of 99.16%. The 4.50% Notes are unsecured obligations and rank pari passu with Main Street'sStreet’s current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2019; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          of the assets securing such indebtedness, including borrowings under the Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2019 mature on December 1, 2019, and may be redeemed in whole or in part at any time at Main Street's option subject to certain make-whole provisions. The 4.50% Notes due 2019 bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. The total net proceeds from the 4.50% Notes due 2019, resulting from the issue price and after underwriting discounts and estimated offering expenses payable, were approximately $171.2 million. Main Street may from time to time repurchase the 4.50% Notes due 2019 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2018, the outstanding balance of the 4.50% Notes due 2019 was $175.0 million and the recorded value of $174.3 million was net of unamortized debt issuance costs of $0.7 million. As of December 31, 2018, if Main Street had adopted the fair value option under ASC 825 for the 4.50% Notes due 2019, Main Street estimates its fair value would be approximately $175.0 million. Main Street recognized interest expense related to the 4.50% Notes due 2019, including amortization of unamortized deferred issuance costs, of $8.6 million for each of the years ended December 31, 2018, 2017 and 2016.

                 The indenture governing the 4.50% Notes due 2019 (the "4.50% Notes due 2019 Indenture") contains certain covenants, including covenants requiring Main Street's compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50% Notes due 2019 and the Trustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). These covenants are subject to limitations and exceptions that are described in the 4.50% Notes due 2019 Indenture. As of December 31, 2018, Main Street was in compliance with these covenants.

          4.50% Notes due 2022

                 In November 2017, Main Street issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50% Notes due 2022") at an issue price of 99.16%. The 4.50% Notes due 2022 are unsecured obligations and rank pari passu with Main Street's current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022;Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at Main Street'sStreet’s option subject to certain make-whole provisions. The 4.50% Notes due 2022 bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. The total net proceeds from the 4.50% Notes, due 2022, resulting from the issue price and after underwriting discounts and estimated offering expenses payable, were approximately $182.2 million. Main Street may from time to time repurchase the 4.50% Notes due 2022 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2018, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million and the recorded value of $182.6 million was net of unamortized debt issuance costs of $2.4 million. As of December 31, 2018, if Main Street had adopted the fair value option under ASC 825 for the 4.50% Notes due 2022, Main Street estimates its fair value would be approximately $186.2 million. Main Street recognized interest expense related to the 4.50% Notes due 2022, including amortization of unamortized deferred issuance costs, of $9.0 million and $0.9 million for the years ended December 31, 2018 and 2017, respectively.

          The indenture governing the 4.50% Notes due 2022 (the "4.50%“4.50% Notes due 2022 Indenture"Indenture”) contains certain covenants, including covenants requiring Main Street'sStreet’s compliance with (regardless of whether Main


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50% Notes and the Trustee if Main Street ceases to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and

          154


          exceptions that are described in the 4.50% Notes Indenture. As of December 31, 2020, Main Street was in compliance with these covenants.

          5.20% Notes

          In April 2019, Main Street issued $250.0 million in aggregate principal amount of 5.20% unsecured notes due 2022May 1, 2024 (the “5.20% Notes”) at an issue price of 99.125%. In December 2019, Main Street issued an additional $75.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 105.0% and, in July 2020, Main Street issued an additional $125.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 102.674%. The 5.20% Notes issued in December 2019 and July 2020 have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The 5.20% Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 5.20% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 5.20% Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The 5.20% Notes bear interest at a rate of 5.20% per year payable semiannually on May 1 and November 1 of each year. The total net proceeds from the 5.20% Notes, resulting from the issue price and after underwriting discounts and estimated offering expenses payable, were approximately $451.4 million. Main Street may from time to time repurchase the 5.20% Notes in accordance with the 1940 Act and the rules promulgated thereunder.

          The indenture governing the 5.20% Notes (the “5.20% Notes Indenture”) contains certain covenants, including covenants requiring Main Street’s compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 5.20% Notes and the Trustee if Main Street ceases to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 4.50%5.20% Notes due 2022 Indenture. As of December 31, 2018,2020, Main Street was in compliance with these covenants.

          Contractual Payment Obligations

          A summary of Main Street'sStreet’s contractual payment obligations for the repayment of outstanding indebtedness at December 31, 20182020 is as follows:

              

          2021

              

          2022

              

          2023

              

          2024

              

          2025

              

          Thereafter

              

          Total

          SBIC debentures

          $

          40,000

          $

          $

          16,000

          $

          63,800

          $

          $

          190,000

          $

          309,800

          4.50% Notes due 2022

          185,000

          185,000

          5.20% Notes due 2024

          450,000

          450,000

          Credit Facility

          269,000

          269,000

          Total

          $

          40,000

          $

          185,000

          $

          285,000

          $

          513,800

          $

          $

          190,000

          $

          1,213,800

                         

           
           2019 2020 2021 2022 2023 Thereafter Total 

          SBIC debentures

           $16,000 $55,000 $40,000 $5,000 $16,000 $213,800 $345,800 

          4.50% Notes due 2019

            175,000            175,000 

          4.50% Notes due 2022

                  185,000      185,000 

          Credit Facility

                    301,000    301,000 

          Total

           $191,000 $55,000 $40,000 $190,000 $317,000 $213,800 $1,006,800 

          155



          Senior Securities


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          NOTE F — FINANCIAL HIGHLIGHTS

           
           Twelve Months Ended December 31, 
          Per Share Data:
           2018 2017 2016 2015 2014 

          NAV at the beginning of the period

           $23.53 $22.10 $21.24 $20.85 $19.89 

          Net investment income(1)

            2.60  2.39  2.23  2.18  2.20 

          Net realized gain (loss)(1)(2)

            (0.03) 0.19  0.56  (0.43) 0.53 

          Net unrealized appreciation (depreciation)(1)(2)

            0.32  0.86  (0.14) 0.20  (0.27)

          Income tax benefit (provision)(1)(2)

            (0.09) (0.43) 0.02  0.18  (0.15)

          Net increase in net assets resulting from operations(1)

            2.80  3.01  2.67  2.13  2.31 

          Dividends paid from net investment income

            (2.69) (2.47) (1.99) (2.49) (2.17)

          Distributions from capital gains

            (0.16) (0.32) (0.74) (0.16) (0.38)

          Total dividends paid

            (2.85) (2.79) (2.73) (2.65) (2.55)

          Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

            (0.01) (0.01) (0.01) (0.01) (0.01)

          Accretive effect of stock offerings (issuing shares above NAV per share)

            0.47  1.07  0.76  0.74  1.07 

          Accretive effect of DRIP issuance (issuing shares above NAV per share)

            0.09  0.06  0.08  0.12  0.12 

          Other(3)

            0.06  0.09  0.09  0.06  0.02 

          NAV at the end of the period

           $24.09 $23.53 $22.10 $21.24 $20.85 

          Market value at the end of the period

           $33.81 $39.73 $36.77 $29.08 $29.24 

          Shares outstanding at the end of the period

            61,264,861  58,660,680  54,354,857  50,413,744  45,079,150 

          (1)
          Based on weighted-average numberInformation about Main Street’s senior securities is shown in the following table as of common shares outstandingDecember 31 for the period.

          (2)
          Net realized gains or losses, net unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.
          years indicated in the table, unless otherwise noted.

              

          Total Amount

              

              

              

          Outstanding

          Involuntary

          Exclusive of

          Asset

          Liquidating

          Average

          Treasury

          Coverage

          Preference

          Market Value

          Class and Year

          Securities(1)

          per Unit(2)

          per Unit(3)

          per Unit(4)

          (dollars in

          thousands)

          SBIC Debentures

          2011

          $

          220,000

           

          2,202

           

          N/A

          2012

           

          225,000

           

          2,763

           

          N/A

          2013

           

          200,200

           

          2,476

           

          N/A

          2014

           

          225,000

           

          2,323

           

          N/A

          2015

           

          225,000

           

          2,368

           

          N/A

          2016

           

          240,000

           

          2,415

           

          N/A

          2017

           

          295,800

           

          2,687

           

          N/A

          2018

           

          345,800

           

          2,455

           

          N/A

          2019

           

          311,800

           

          2,363

           

          N/A

          2020

           

          309,800

          2,244

          N/A

          Credit Facility

           

          2011

          $

          107,000

           

          2,202

           

          N/A

          2012

           

          132,000

           

          2,763

           

          N/A

          2013

           

          237,000

           

          2,476

           

          N/A

          2014

           

          218,000

           

          2,323

           

          N/A

          2015

           

          291,000

           

          2,368

           

          N/A

          2016

           

          343,000

           

          2,415

           

          N/A

          2017

           

          64,000

           

          2,687

           

          N/A

          2018

           

          301,000

           

          2,455

           

          N/A

          2019

           

          300,000

           

          2,363

           

          N/A

          2020

           

          269,000

          2,244

          N/A

          6.125% Notes

           

          2014

          $

          90,823

           

          2,323

           

          $

          24.78

          2015

           

          90,738

           

          2,368

           

          25.40

          2016

           

          90,655

           

          2,415

           

          25.76

          2017

           

          90,655

           

          2,687

           

          25.93

          4.50% Notes Due 2019

           

          2015

          $

          175,000

           

          2,368

           

          N/A

          2016

           

          175,000

           

          2,415

           

          N/A

          2017

           

          175,000

           

          2,687

           

          N/A

          2018

           

          175,000

           

          2,455

           

          N/A

          4.50% Notes Due 2022

          2017

          $

          185,000

          2,687

          N/A

          2018

          185,000

           

          2,455

           

          N/A

          2019

           

          185,000

           

          2,363

           

          N/A

          2020

           

          185,000

          2,244

          N/A

          5.20% Notes Due 2024

           

          2019

          $

          325,000

          2,363

          N/A

          2020

          450,000

          2,244

          N/A



          (1)

          Total amount of each class of senior securities outstanding at the end of the period presented.

          156


          (2)

          Asset coverage per unit is the ratio of the carrying value of Main Street’s total consolidated assets, less all liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.

          (3)

          The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to it. The “—” indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.

          (4)

          Average market value per unit for the 6.125% Notes represents the average of the daily closing prices as reported on the NYSE during the period presented. Average market value per unit for the SBIC debentures, Credit Facility, 4.50% Notes due 2019, 4.50% Notes and 5.20% Notes are not applicable because these are not registered for public trading.

          NOTE F—FINANCIAL HIGHLIGHTS


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          (3)

              

          Twelve Months Ended December 31, 

          Per Share Data:

              

          2020

              

          2019

              

          2018

              

          2017

              

          2016

          NAV at the beginning of the period

          $

          23.91

          $

          24.09

          $

          23.53

          $

          22.10

          $

          21.24

          Net investment income(1)

           

          2.10

           

          2.50

           

          2.60

           

          2.39

           

          2.23

          Net realized loss(1)(2)

           

          (1.77)

           

          (0.33)

           

          (0.03)

           

          0.19

           

          0.56

          Net unrealized appreciation (depreciation)(1)(2)

           

          (0.09)

           

          (0.09)

           

          0.32

           

          0.86

           

          (0.14)

          Income tax benefit (provision)(1)(2)

           

          0.21

           

          (0.02)

           

          (0.09)

           

          (0.43)

           

          0.02

          Net increase (decrease) in net assets resulting from operations(1)

           

          0.45

           

          2.06

           

          2.80

           

          3.01

           

          2.67

          Dividends paid

           

          (2.46)

           

          (2.91)

           

          (2.85)

           

          (2.79)

           

          (2.73)

          Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

           

           

          (0.01)

           

          (0.01)

           

          (0.01)

           

          (0.01)

          Accretive effect of stock offerings (issuing shares above NAV per share)

           

          0.41

           

          0.55

           

          0.47

           

          1.07

           

          0.76

          Accretive effect of DRIP issuance (issuing shares above NAV per share)

          0.08

          0.12

           

          0.09

           

          0.06

           

          0.08

          Other(3)

           

          (0.04)

           

          0.01

           

          0.06

           

          0.09

           

          0.09

          NAV at the end of the period

          $

          22.35

          $

          23.91

          $

          24.09

          $

          23.53

          $

          22.10

          Market value at the end of the period

          $

          32.26

          $

          43.11

          $

          33.81

          $

          39.73

          $

          36.77

          Shares outstanding at the end of the period

          67,762,032

          64,252,937

          61,264,861

          58,660,680

          54,354,857


          (1)Based on weighted-average number of common shares outstanding for the period.
          (2)Net realized gains or losses, net unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.
          (3)Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

          157


          Twelve Months Ended December 31, 

           

          2020

              

          2019

              

          2018

              

          2017

              

          2016

           


           Twelve Months Ended December 31, 

           2018 2017 2016 2015 2014 

           (dollars in thousands)
           

          (dollars in thousands)

           

          NAV at end of period

           $1,476,049 $1,380,368 $1,201,481 $1,070,894 $939,982 

          $

          1,514,767

          $

          1,536,390

          $

          1,476,049

          $

          1,380,368

          $

          1,201,481

          Average NAV

           $1,441,163 $1,287,639 $1,118,567 $1,055,313 $885,568 

          $

          1,436,291

          $

          1,517,615

          $

          1,441,163

          $

          1,287,639

          $

          1,118,567

          Average outstanding debt

           $947,694 $843,993 $801,048 $759,396 $575,524 

          $

          1,152,108

          $

          1,055,800

          $

          947,694

          $

          843,993

          $

          801,048

          Ratio of total expenses, including income tax expense, to average NAV(1)

           5.75% 7.37% 5.48% 4.63% 5.82% 

          Ratio of operating expenses to average NAV(2)

           5.32% 5.47% 5.59% 5.45% 5.11% 

          Ratio of operating expenses, excluding interest expense, to average NAV(2)

           2.30% 2.63% 2.58% 2.41% 2.44% 

          Ratio of total expenses, including income tax expense, to average NAV (1)

          4.95

          %

          5.75

          %

          5.75

          %

          7.37

          %

          5.48

          %

          Ratio of operating expenses to average NAV (2)

          5.89

          %

          5.67

          %

          5.32

          %

          5.47

          %

          5.59

          %

          Ratio of operating expenses, excluding interest expense, to average NAV (2)

          2.44

          %

          2.36

          %

          2.30

          %

          2.63

          %

          2.58

          %

          Ratio of net investment income to average NAV

           10.87% 10.51% 10.35% 10.15% 10.79% 

          9.60

          %

          10.37

          %

          10.87

          %

          10.51

          %

          10.35

          %

          Portfolio turnover ratio

           29.13% 38.18% 24.63% 25.37% 35.71% 

          18.00

          %

          18.86

          %

          29.13

          %

          38.18

          %

          24.63

          %

          Total investment return(3)

           –8.25% 16.02% 37.36% 8.49% –3.09% 

          Total return based on change in NAV(4)

           12.19% 14.20% 12.97% 11.11% 12.71% 

          Total investment return (3)

          (19.11)

          %

          36.86

          %

          (8.25)

          %

          16.02

          %

          37.36

          %

          Total return based on change in NAV (4)

          1.91

          %

          8.78

          %

          12.19

          %

          14.20

          %

          12.97

          %


          (1)Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net deferred tax provision/benefit relating to the net unrealized appreciation/depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even though these net deferred taxes are not currently payable/receivable.
          (2)Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager.
          (3)Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street’s dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.
          (4)Total return is based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.
          (1)
          Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net deferred tax provision/benefit relating to the net unrealized appreciation/depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even though these net deferred taxes are not currently payable/receivable.

          (2)
          Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager.

          (3)
          Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street's dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

          (4)
          Total return is based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

          NOTE G — G—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

          Main Street currently pays monthly dividends to its stockholders. Its monthly dividends, if any, will be determined by its Board of Directors on a quarterly basis. During 2018,2020, Main Street paid supplemental dividends of $0.275 per share in each of June and December 2018, regular monthly dividends of $0.190$0.205 per share for each month of January through September 2018, regular monthly dividends of $0.195 per share for each month of October through December 2018, with such dividends totaling $170.9 million, or $2.845 per share.2020. The 2018 regular2020 monthly dividends, which total $137.5$161.1 million, or $2.295$2.460 per share, represent a 2.7%1.9% increase from the regular monthly dividends paid per share for the year ended 2017. 2019. During 2019, Main Street also paid supplemental dividends of $0.250 per share in June 2019 and $0.240 per share in December 2019.

          For tax purposes, the 20182020 dividends, which included the effects of dividends on an accrual basis, total $2.85$2.255 per share and were comprised of (i) ordinary income totaling approximately $2.270 per share, (ii) long term capital gain totaling approximately $0.375$2.061 per share, and (iii)(ii) qualified dividend income totaling approximately $0.205$0.194 per share. As of December 31, 2018,2020, Main Street estimates that it has generated undistributed taxable income of approximately $53.4$38.2 million, or $0.87$0.56 per share, that will be carried forward toward distributions to be paid in 2019. For the years ended


          Table of Contents2021.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          December 31, 2017 and 2016, Main Street paid total dividends of approximately $157.6 million, or $2.785 per share, and $141.6 million, or $2.725 per share, respectively.

          MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally

          158


          distribute at least 90% of its "investment“investment company taxable income"income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

          The determination of the tax attributes for Main Street’s distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Therefore, a determination made on an interim basis may not be representative of the actual tax attributes of distributions for a full year. Ordinary dividend distributions from a RIC do not qualify for the 20% maximum tax rate (plus a 3.8% Medicare surtax, if applicable) on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for distributions will generally include both ordinary income and capital gains,qualified dividends, but may also include qualified dividendseither one or both of capital gains and return of capital. The tax character of distributions paid for the years ended December 31, 2018, 20172020, 2019 and 20162018 was as follows:

          Twelve Months Ended December 31, 

          2020

          2019

          2018

          (dollars in thousands)

          Ordinary income(1)

          $

          135,128

          $

          166,280

          $

          136,934

          Qualified dividends

          12,398

          15,451

          12,277

          Distributions of long term capital gains

          1,858

          22,513

          Distributions on tax basis

          $

          147,526

          $

          183,589

          $

          171,724

           
           Twelve Months Ended December 31, 
           
           2018 2017 2016 
           
           (dollars in thousands)
           

          Ordinary income(1)

           $136,934 $126,540 $100,059 

          Qualified dividends

            12,277  4,656  2,992 

          Distributions of long term capital gains

            22,513  27,479  39,522 

          Distributions on tax basis

           $171,724 $158,675 $142,573 

          (1)The years ended December 31, 2020, 2019 and 2018 include $1.5 million, $1.6 million and $1.4 million, respectively, that was reported for tax purposes as compensation for services in accordance with Section 83 of the Code.
          (1)
          The years ended December 31, 2018, 2017 and 2016 include $1.4 million, $1.5 million and $1.6 million, respectively, that was reported as compensation for services for tax purposes in accordance with Section 83 of the Code.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Listed below is a reconciliation of "Net“Net increase (decrease) in net assets resulting from operations"operations” to taxable income and to total distributions declared to common stockholders for the years ended December 31, 2018, 20172020, 2019 and 2016.2018.

          Year ended December 31, 

              

          2020

              

          2019

              

          2018

          (estimated, dollars in thousands)

          Net increase (decrease) in net assets resulting from operations

          $

          29,383

          $

          129,569

          $

          168,213

          Book‑tax difference from share‑based compensation expense

           

          5,139

           

          (354)

           

          (1,430)

          Net unrealized (appreciation) depreciation

           

          5,622

           

          5,754

           

          (19,275)

          Income tax provision (benefit)

           

          (13,541)

           

          1,242

           

          6,152

          Pre-tax book (income) loss not consolidated for tax purposes

           

          37,420

           

          (30,690)

           

          (454)

          Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates

           

          93,025

           

          65,686

           

          17,649

          Estimated taxable income(1)

           

          157,048

           

          171,207

           

          170,855

          Taxable income earned in prior year and carried forward for distribution in current year

           

          29,107

           

          41,489

           

          42,357

          Taxable income earned prior to period end and carried forward for distribution next period

           

          (38,248)

           

          (42,281)

           

          (53,436)

          Dividend payable as of period end and paid in the following period

           

          13,889

           

          13,174

           

          11,948

          Total distributions accrued or paid to common stockholders

          $

          161,796

          $

          183,589

          $

          171,724


          (1)Main Street’s taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.
           
           Year Ended December 31, 
           
           2018 2017 2016 
           
           (estimated, dollars in thousands)
           

          Net increase in net assets resulting from operations

           $168,213 $170,622 $138,899 

          Book-tax difference from share-based compensation expense

            (1,430) (867) 1,619 

          Net unrealized (appreciation) depreciation

            (19,275) (48,757) 7,519 

          Income tax provision (benefit)

            6,152  24,471  (1,227)

          Pre-tax book (income) loss not consolidated for tax purposes

            (454) 2,357  15,742 

          Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates

            17,649  10,844  (7,300)

          Estimated taxable income(1)

            170,855  158,670  155,252 

          Taxable income earned in prior year and carried forward for distribution in current year

            42,357  42,362  29,683 

          Taxable income earned prior to period end and carried forward for distribution next period

            (53,436) (53,503) (52,410)

          Dividend payable as of period end and paid in the following period

            11,948  11,146  10,048 

          Total distributions accrued or paid to common stockholders

           $171,724 $158,675 $142,573 

          159


          (1)
          Main Street's taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.

          The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes and to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street'sStreet’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street'sStreet’s consolidated financial statements.

          The income tax expense (benefit) for Main Street is generally composed of (i) deferred tax expense (benefit), which is primarily the result of the net activity relating to the portfolio investments held in the Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation or depreciation and other temporary book tax differences, and (ii) current tax expense, which is primarily the result of current U.S. federal income and state taxes and excise taxes on Main Street’s estimated undistributed taxable income. The income tax expense, or benefit, and the related tax assets and liabilities generated by the Taxable Subsidiaries, if any, are reflected in Main Street'sStreet’s consolidated statement of operations. Main Street's


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Street’s provision for income taxes was comprised of the following for the years ended December 31, 2018, 20172020, 2019 and 20162018 (amounts in thousands):


           Twelve Months Ended
          December 31,
           

           2018 2017 2016 

          Twelve Months Ended

          December 31, 

          2020

          2019

          2018

          Current tax expense (benefit):

                 

          Federal

           $(2,398)$1,865 $1 

          $

          497

          $

          1,019

          $

          (2,398)

          State

           1,688 1,415 347 

          (1,554)

          1,408

          1,688

          Excise

          1,647

          1,119

          1,029

          Total current tax expense (benefit)

           (710) 3,280 348 

          590

          3,546

          319

          Deferred tax expense (benefit):

                 

          Federal

           3,763 15,248 (5,359)

          (13,082)

          (1,267)

          3,763

          State

           2,070 4,017 2,043 

          (1,049)

          (1,037)

          2,070

          Total deferred tax expense (benefit)

           5,833 19,265 (3,316)

          (14,131)

          (2,304)

          5,833

          Excise tax

           1,029 1,926 1,741 

          Total income tax provision (benefit)

           $6,152 $24,471 $(1,227)

          $

          (13,541)

          $

          1,242

          $

          6,152

          MSCC operates in a manner to maintain its RIC status and to eliminate corporate-level U.S. federal income tax (other than the 4% excise tax) by distributing sufficient investment company taxable income and long-term capital gains. As a result, MSCC will have an effective tax rate equal to 0% before the excise tax and income taxes incurred by the Taxable Subsidiaries. As such, a reconciliation of the differences between Main Street'sStreet’s reported income tax expense and its tax expense at the federal statutory rate of 21% is not meaningful.

          As of December 31, 2018,2020, the cost of investments for U.S. federal income tax purposes was $2,244.0$2,352.9 million, with such investments having a gross unrealized appreciation of $385.6$544.8 million and gross unrealized depreciation of $172.0$212.8 million.

                 The net deferred tax liability at December 31, 2018 was $17.0 million compared to $10.6 million at December 31, 2017, primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. The net deferred tax liability as of December 31, 2017 equal to $10.6 million reflects a reduction of $2.8 million resulting from the decrease in the U.S. federal corporate income tax rate from 35% to 21% as enacted by the Tax Cuts and Jobs Act (see further discussion in Note B.9.). For the year ended December 31, 2018, for U.S. federal income tax purposes, the Taxable Subsidiaries had capital loss carryforwards totaling approximately $7.8 million which, if unused, will expire in taxable year 2021 and generated a capital loss carryforward of $5.1 million which, if unused, will expire in taxable year 2023. At December 31, 2018, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward from prior years which, if unused, will expire in various taxable years from 2028 through 2037. Under the Tax Cuts and Jobs Act, any net operating losses generated in 2018 and future periods will have an indefinite carryforward. The timing and manner in which Main Street will utilize any loss carryforwards generated before December 31, 2018 may be limited in the future under the provisions of the Code. Additionally, as a result of the Tax Cuts and Jobs Act, our Taxable Subsidiaries have an interest expense limitation carryforward which have an indefinite carryforward.

          Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of temporary differences. Accordingly, Main Street did not record a valuation allowance related to its deferred tax assets at December 31, 20182020 and


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          2017. 2019. The following table sets forth the

          160


          significant components of net deferred tax assets and liabilities as of December 31, 20182020 and 20172019 (amounts in thousands):


           Years Ended
          December 31,
           

           2018 2017 

          Years Ended 

          December 31, 

          2020

          2019

          Deferred tax assets:

               

            

          Net operating loss carryforwards

           $29,546 $28,422 

          $

          41,691

          $

          32,778

          Interest Expense Carryforwards

           5,199  

          9,779

          10,079

          Capital loss carryforwards

           2,795 1,011 

          929

          Other

           1,532 893 

          2,315

          2,041

          Total deferred tax assets

           39,072 30,326 

          54,714

          44,898

          Deferred tax liabilities:

               

            

          Net unrealized appreciation of portfolio investments

           (37,137) (31,711)

          (28,351)

          (31,851)

          Net basis differences in portfolio investments

           (18,961) (9,168)

          (28,955)

          (29,196)

          Other

             
          ���

          Total deferred tax liabilities

           (56,098) (40,879)

          (57,306)

          (61,047)

          Total deferred tax asset (liabilities), net

           $(17,026)$(10,553)

          $

          (2,592)

          $

          (16,149)

          The net deferred tax liability at December, 31, 2020 was $2.6 million compared to $16.1 million at December 31, 2019, primarily related to changes in net unrealized appreciation or depreciation, changes in loss carryforwards, and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. At December 31, 2020, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward from prior years which, if unused, will expire in various taxable years from 2028 through 2037. Any net operating losses generated in 2019 and future periods are not subject to expiration and will carryforward indefinitely until utilized. The timing and manner in which Main Street will utilize any loss carryforwards generated before December 31, 2019 may be limited in the future under the provisions of the Code. At December 31, 2020, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net capital loss carryforward totaling approximately $4.2 million which, if unused, will expire in five years. Additionally, the Taxable Subsidiaries have interest expense limitation carryforwards which have an indefinite carryforward. In addition, for the year ended December 31, 2020, for U.S. federal income tax purposes at the RIC level, MSCC had net capital loss carryforwards totaling approximately $103.0 million available to offset future capital gains, to the extent available and permitted by U.S. federal income tax law. However, as long as MSCC maintains its RIC status, any capital loss carryforwards at the RIC are not subject to a federal income tax-effect and are not subject to an expiration date.

          NOTE H — H—COMMON STOCK

          Main Street maintains a program with certain selling agents through which it can sell shares of its common stock by means of at-the-market offerings from time to time (the "ATM Program"“ATM Program”).

          During the year ended December 31, 2020, Main Street sold 2,645,778 shares of its common stock at a weighted-average price of $32.10 per share and raised $84.9 million of gross proceeds under the ATM Program. Net proceeds were $83.8 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2020, sales transactions representing 87,179 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet, but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate net asset value per share. As of December 31, 2020, 5,713,372 shares remained available for sale under the ATM Program.

          During the year ended December 31, 2019, Main Street sold 2,247,187 shares of its common stock at a weighted-average price of $40.05 per share and raised $90.0 million of gross proceeds under the ATM Program. Net proceeds were $88.8 million after commissions to the selling agents on shares sold and offering costs.

          During the year ended December 31, 2018, Main Street sold 2,060,019 shares of its common stock at a weighted-average price of $38.48 per share and raised $79.3 million of gross proceeds under the ATM Program. Net proceeds were $78.0 million after commissions to the selling agents on shares sold and offering costs. As

          161


                 During the year ended December 31, 2017, Main Street sold 3,944,972 shares of its common stock at a weighted-average price of $38.72 per share and raised $152.8 million of gross proceeds under the ATM Program. Net proceeds were $150.9 million after commissions to the selling agents on shares sold and offering costs.

                 During the year ended December 31, 2016, Main Street sold 3,324,646 shares of its common stock at a weighted-average price of $34.17 per share and raised $113.6 million of gross proceeds under the ATM Program. Net proceeds were $112.0 million after commissions to the selling agents on shares sold and offering costs.

          NOTE I — I—DIVIDEND REINVESTMENT PLAN ("DRIP")

          The dividend reinvestment feature of Main Street's DRIPStreet’s dividend reinvestment and direct stock purchase plan (the “DRIP”) provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, its stockholders who have not "opted out"“opted out” of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC'sMSCC’s common stock on the valuation date determined for each dividend by Main Street'sStreet’s Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased, before any associated brokerage or other


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          costs. Main Street'sStreet’s DRIP is administered by its transfer agent on behalf of Main Street'sStreet’s record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street'sStreet’s DRIP but may provide a similar dividend reinvestment plan for their clients.

                 ForSummarized DRIP information for the yearyears ended December 31, 2020, 2019 and 2018 $14.9 million of the total $170.9 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 394,403 newly issued shares. For the year ended December 31, 2017, $9.2 million of the total $157.6 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 234,513 newly issued shares. For the year ended December 31, 2016, $14.1 million of the total $141.6 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 434,631 newly issued shares. The shares disclosed above relate only to Main Street's DRIP and exclude any activity related to broker-managed dividend reinvestment plans.is as follows:

          Years Ended

          December 31, 

          2020

          2019

          2018

          ($ in millions)

          Total dividends paid

          $

          161.1

          $

          182.8

          $

          170.9

          DRIP participation

          $

          16.2

          $

          18.1

          $

          14.9

          Shares issued for DRIP

          517,796

          441,927

          394,403

          NOTE J — J—SHARE-BASED COMPENSATION

          Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

          Main Street'sStreet’s Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2015 Equity and Incentive Plan (the "Equity“Equity and Incentive Plan"Plan”). These shares generally vest over a three-year period from the grant date. The fair value is expensed over the service period, starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street'sStreet’s Board of Directors under the Equity and Incentive Plan, net of shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of December 31, 2018.2020.

          Restricted stock authorized under the plan

          3,000,000

          Less net restricted stock granted during:

          Year ended December 31, 2015

          (900)

          (900)

          Year ended December 31, 2016

          (260,514)

          (260,514)

          Year ended December 31, 2017

          (223,812)

          (223,812)

          Year ended December 31, 2018

          (243,779)

          (243,779)

          Year ended December 31, 2019

          (384,049)

          Year ended December 31, 2020

          (370,272)

          Restricted stock available for issuance as of December 31, 20182020

          2,270,995

          1,516,674

          As of December 31, 2018,2020, the following table summarizes the restricted stock issued to Main Street'sStreet’s non-employee directors and the remaining shares of restricted stock available for issuance pursuant to the Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or


          162



          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          granted upon appointment or election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service period.

          Restricted stock authorized under the plan

          300,000

          Less net restricted stock granted during:

          Year ended December 31, 2015

          (6,806)

          (6,806)

          Year ended December 31, 2016

          (6,748)

          (6,748)

          Year ended December 31, 2017

          (5,948)

          (5,948)

          Year ended December 31, 2018

          (6,376)

          (6,376)

          Year ended December 31, 2019

          (6,008)

          Year ended December 31, 2020

          (11,463)

          Restricted stock available for issuance as of December 31, 20182020

          274,122

          256,651

          For the years ended December 31, 2018, 20172020, 2019 and 2016,2018, Main Street recognized total share-based compensation expense of $9.2$10.8 million, $10.0$10.1 million and $8.3$9.2 million, respectively, related to the restricted stock issued to Main Street employees and non-employee directors.

          As of December 31, 2018,2020, there was $10.8$12.2 million of total unrecognized compensation expense related to Main Street'sStreet’s non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of approximately 1.8 years as of December 31, 2018.2020.


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          NOTE K — K—COMMITMENTS AND CONTINGENCIES

                 As ofAt December 31, 2018,2020, Main Street had the following outstanding commitments (in thousands):

          Investments with equity capital commitments that have not yet funded:

              

          Amount

           

          Congruent Credit Opportunities Funds

           

          Congruent Credit Opportunities Fund II, LP

          $

          8,488

          Congruent Credit Opportunities Fund III, LP

           

          8,117

          $

          16,605

           

          Encap Energy Fund Investments

          EnCap Energy Capital Fund IX, L.P.

          $

          251

          EnCap Energy Capital Fund X, L.P.

           

          1,325

          EnCap Flatrock Midstream Fund II, L.P.

           

          4,592

          EnCap Flatrock Midstream Fund III, L.P.

          402

          $

          6,570

          EIG Fund Investments

          $

          3,735

          Brightwood Capital Fund Investments

          Brightwood Capital Fund III, LP

          $

          3,000

          Freeport Fund Investments

          Freeport Financial SBIC Fund LP

          1,375

          Freeport First Lien Loan Fund III LP

          1,715

          $

          3,090

          LKCM Headwater Investments I, L.P.

          $

          2,500

          UnionRock Energy Fund Investments

          UnionRock Energy Fund II, LP

          $

          2,248

          Harris Preston Fund Investments

          163


           
           Amount 

          Investments with equity capital commitments that have not yet funded:

              

          Congruent Credit Opportunities Funds

            
           
           

          Congruent Credit Opportunities Fund II, LP

           $8,488 

          Congruent Credit Opportunities Fund III, LP

            8,117 

           $16,605 

          Encap Energy Fund Investments

              

          EnCap Energy Capital Fund VIII, L.P. 

           $240 

          EnCap Energy Capital Fund IX, L.P. 

            344 

          EnCap Energy Capital Fund X, L.P. 

            2,467 

          EnCap Flatrock Midstream Fund II, L.P. 

            6,311 

          EnCap Flatrock Midstream Fund III, L.P. 

            2,083 

           $11,445 

          Brightwood Capital Fund Investments

              

          Brightwood Capital Fund III, LP

           $3,000 

          Brightwood Capital Fund IV, LP

            3,000 

           $6,000 

          Freeport Fund Investments

              

          Freeport Financial SBIC Fund LP

           $1,375 

          Freeport First Lien Loan Fund III LP

            1,345 

           $2,720 

          Harris Preston Fund Investments

              

          HPEP 3, L.P. 

           $3,267 

          EIG Fund Investments

           
          $

          4,668
           

          LKCM Headwater Investments I, L.P. 

           
          $

          2,500
           

          Dos Rios Partners

            
           
           

          Dos Rios Partners, LP

           $1,594 

          Dos Rios Partners — A, LP

            506 

           $2,100 

          Copper Trail Fund Investments

              

          Copper Trail Energy Fund I, LP

           $1,232 

          I-45 SLF LLC

           
          $

          800
           

          Access Media Holdings, LLC

           
          $

          284
           

          Total equity commitments

           $51,621 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

              

          Amount

          HPEP 3, L.P.

          $

          1,929

          Dos Rios Partners

          Dos Rios Partners, LP

          $

          835

          Dos Rios Partners - A, LP

          265

          $

          1,100

          MS Private Loan Fund I, LP

          $

          214

          Total equity commitments

          $

          40,991

          Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

          Eastern Wholesale Fence LLC

          $

          8,143

          SI East, LLC

          7,500

          Adams Publishing Group, LLC

          5,000

          Bolder Panther Group, LLC

          5,000

          Classic H&G Holdco, LLC

          4,000

          Electronic Transaction Consultants, LLC

          3,704

          GS HVAM Intermediate, LLC

          3,636

          Market Force Information, LLC

          3,400

          Ian, Evan & Alexander Corporation (EverWatch)

          3,333

          Hunter Defense Technologies, Inc.

          3,230

          NinjaTrader, LLC

          3,078

          Arcus Hunting LLC

          2,892

          RTIC Subsidiary Holdings, LLC

          2,740

          Echo US Holdings, LLC.

          2,586

          Superior Rigging & Erecting Co.

          2,500

          Klein Hersh, LLC

          2,500

          Nebraska Vet AcquireCo, LLC

          2,500

          Pearl Meyer Topco LLC

          2,488

          Fortna, Inc.

          2,027

          PPL RVs, Inc.

          2,000

          Hawk Ridge Systems, LLC

          2,000

          Lynx FBO Operating LLC

          1,875

          Cody Pools, Inc.

          1,600

          Chamberlin Holding LLC

          1,600

          Direct Marketing Solutions, Inc.

          1,600

          Trantech Radiator Topco, LLC

          1,600

          GRT Rubber Technologies LLC

          1,340

          Project Eagle Holdings, LLC

          1,250

          Gamber-Johnson Holdings, LLC

          1,200

          Tedder Industries, LLC

          1,200

          Project BarFly, LLC

          1,127

          CompareNetworks Topco, LLC

          1,000

          NRI Clinical Research, LLC

          1,000

          Invincible Boat Company, LLC.

          864

          Mystic Logistics Holdings, LLC

          800

          DTE Enterprises RLOC

          750

          PT Network, LLC

          658

          ASC Interests, LLC

          600

          Jensen Jewelers of Idaho, LLC

          500

          Coastal Television Broadcasting Holdings LLC

          500

          Clickbooth.com, LLC

          457

          American Nuts, LLC

          281

          Dynamic Communities, LLC

          250

          Total loan commitments

          $

          96,309

          Total commitments

          $

          137,300

          164


           
           Amount 

          Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

              

          Independent Pet Partners Intermediate Holdings, LLC

           
          $

          29,089
           

          GRT Rubber Technologies LLC

            8,375 

          SI East, LLC

            7,500 

          California Splendor Holdings LLC

            7,409 

          NexRev LLC

            4,000 

          PT Network, LLC

            3,618 

          Hoover Group, Inc. 

            2,250 

          Boccella Precast Products LLC

            2,000 

          Arcus Hunting LLC

            1,807 

          Chamberlin Holding LLC

            1,600 

          Direct Marketing Solutions, Inc. 

            1,600 

          Meisler Operating LLC

            1,600 

          Lamb Ventures, LLC

            1,500 

          Gamber-Johnson Holdings, LLC

            1,200 

          Volusion, LLC

            1,075 

          NRI Clinical Research, LLC

            1,000 

          Aethon United BR LP

            938 

          Kickhaefer Manufacturing Company, LLC

            936 

          CTVSH, PLLC

            800 

          BBB Tank Services, LLC

            800 

          DTE Enterprises RLOC

            750 

          ASC Ortho Management Company, LLC

            750 

          Adams Publishing Group, LLC

            750 

          Tedder Industries, LLC

            720 

          HDC/HW Intermediate Holdings

            640 

          Wireless Vision Holdings, LLC

            592 

          Jensen Jewelers of Idaho, LLC

            500 

          New Era Technology, Inc. 

            479 

          Barfly Ventures, LLC

            368 

          American Nuts, LLC

            280 

          Dynamic Communities, LLC

            250 

          ATS Workholding, LLC

            42 

          BigName Commerce, LLC

            29 

          Total loan commitments

           $85,247 

          Total commitments

           $136,868 

          Main Street will fund its unfunded commitments from the same sources it uses to fund its investment commitments that are funded at the time they are made (which are typically through existing cash and cash equivalents and borrowings under the Credit Facility). Main Street follows a process to manage its liquidity and ensure that it has available capital to fund its unfunded commitments as necessary. The Company had total unrealized depreciation of $0.3$0.1 million on the outstanding unfunded commitments as of December 31, 2018.2020.


          TableEffective January 1, 2019, ASC 842 required that a lessee evaluate its leases to determine whether they should be classified as operating or financing leases. Main Street identified one operating lease for its office space. The lease commenced May 15, 2017 and expires January 31, 2028. It contains two five-year extension options for a final expiration date of ContentsJanuary 31, 2038.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          As Main Street classified this lease as an operating lease prior to implementation, ASC 842-10-65-1 indicates that a right-of-use asset and lease liability should be recorded based on the effective date. Main Street adopted ASC 842 effective January 1, 2019 and recorded a right-of-use asset and a lease liability as of that date. After this date, Main Street has anrecorded lease expense on a straight-line basis, consistent with the accounting treatment for lease expense prior to the adoption of ASC 842.

          Total operating lease for office space. Total rent expensecost incurred by Main Street for each of the years ended December 31, 2018, 20172020 and 20162019 and 2018 was $0.7 million, $0.7million. As of December 31, 2020, the asset related to the operating lease was $4.3 million and $0.6is included in the interest receivable and other assets balance on the consolidated balance sheet. The lease liability was $5.0 million respectively.and is included in the accounts payable and other liabilities balance on the consolidated balance sheet. As of December 31, 2020, the remaining lease term was 7.1 years and the discount rate was 4.2%.

          The following table shows future minimum payments under Main Street'sStreet’s operating lease as of December 31, 2018:2020 (in thousands):

          For the Years Ended December 31,
           Amount 

          Amount

          2019

           $748 

          2020

           762 

          2021

           776 

          $

          776

          2022

           790 

          790

          2023

           804 

          804

          2024

          818

          2025

          832

          Thereafter

           3,429 

          1,779

          Total

           $7,309 

          $

          5,799

          Main Street may, from time to time, be involved in litigation arising out of its operations in the normal course of business or otherwise. Furthermore, third parties may try to impose liability on Main Street in connection with the activities of its portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, Main Street does not expect any current matters will materially affect its financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on Main Street'sStreet’s financial condition or results of operations in any future reporting period.

          NOTE L SELECTED QUARTERLY DATA (UNAUDITED)

              

          2020

          (dollars in thousands, 

          except per share amounts)

          Qtr. 1

          Qtr. 2

          Qtr. 3

          Qtr. 4

          Total investment income

          $

          56,150

          $

          52,007

          $

          51,954

          $

          62,503

          Net investment income

          $

          36,545

          $

          31,294

          $

          30,462

          $

          39,644

          Net increase in net assets resulting from operations

          $

          (171,438)

          $

          43,369

          $

          78,195

          $

          79,257

          Net investment income per share — basic and diluted

          $

          0.57

          $

          0.48

          $

          0.46

          $

          0.59

          Net increase in net assets resulting from operations per share — basic and diluted

          $

          (2.66)

          $

          0.66

          $

          1.18

          $

          1.19

          165

           
           2018 
           
           (dollars in thousands,
          except per share amounts)
           
           
           Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

          Total investment income

           $55,942 $59,869 $58,263 $59,280 

          Net investment income

           $36,975 $39,512 $38,075 $42,083 

          Net increase in net assets resulting from operations

           $34,517 $55,451 $68,740 $9,505 

          Net investment income per share — basic and diluted

           $0.63 $0.66 $0.63 $0.69 

          Net increase in net assets resulting from operations per share — basic and diluted

           $0.59 $0.93 $1.13 $0.16 



           
           2017 
           
           (dollars in thousands,
          except per share amounts)
           
           
           Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

          Total investment income

           $47,889 $50,271 $51,786 $55,795 

          Net investment income

           $31,166 $32,693 $34,029 $37,483 

          Net increase in net assets resulting from operations

           $31,450 $42,829 $34,899 $61,444 

          Net investment income per share — basic and diluted

           $0.57 $0.58 $0.60 $0.64 

          Net increase in net assets resulting from operations per share — basic and diluted

           $0.57 $0.76 $0.61 $1.05 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)



           2016 

           (dollars in thousands,
          except per share amounts)
           

           Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

              

          2019

          (dollars in thousands,

          except per share amounts)

              

          Qtr. 1

              

          Qtr. 2

              

          Qtr. 3

              

          Qtr. 4

          Total investment income

           $42,006 $42,902 $46,599 $46,830 

          $

          61,365

          $

          61,293

          $

          60,068

          $

          60,649

          Net investment income

           $27,164 $27,648 $30,557 $30,432 

          $

          39,491

          $

          39,617

          $

          39,012

          $

          39,247

          Net increase in net assets resulting from operations

           $16,812 $30,911 $43,181 $47,993 

          $

          41,401

          $

          38,254

          $

          33,902

          $

          16,014

          Net investment income per share — basic and diluted

           $0.54 $0.54 $0.58 $0.57 

          $

          0.64

          $

          0.63

          $

          0.62

          $

          0.62

          Net increase in net assets resulting from operations per share — basic and diluted

           $0.33 $0.60 $0.82 $0.90 

          $

          0.67

          $

          0.61

          $

          0.54

          $

          0.25

              

          2018

          (dollars in thousands,

           except per share amounts)

              

          Qtr. 1

              

          Qtr. 2

              

          Qtr. 3

              

          Qtr. 4

          Total investment income

          $

          55,942

          $

          59,869

          $

          58,263

          $

          59,280

          Net investment income

          $

          36,975

          $

          39,512

          $

          38,075

          $

          42,083

          Net increase in net assets resulting from operations

          $

          34,517

          $

          55,451

          $

          68,740

          $

          9,505

          Net investment income per share — basic and diluted

          $

          0.63

          $

          0.66

          $

          0.63

          $

          0.69

          Net increase in net assets resulting from operations per share — basic and diluted

          $

          0.59

          $

          0.93

          $

          1.13

          $

          0.16

          NOTE M — M—RELATED PARTY TRANSACTIONS

          As discussed further in Note D, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of Main Street'sStreet’s Investment Portfolio. At December 31, 2018,2020, Main Street had a receivable of approximately $2.9$3.5 million due from the External Investment Manager, which included (i) approximately $1.8$2.4 million related primarily to operating expenses incurred by MSCC or its subsidiaries as required to support the External Investment Manager'sManager’s business and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion in Note D) and (ii) approximately $1.2$1.1 million of dividends declared but not paid by the External Investment Manager. MSCC has entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for the External Investment Manager’s relationship with MSC Income and its other clients (see further discussion in Note A.1 and Note D).

          In November 2015, Main Street'sStreet’s Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015“2015 Deferred Compensation Plan"Plan”). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013“2013 Deferred Compensation Plan"Plan”). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors'directors’ fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2018, $6.12020, $11.9 million of compensation and directors' feesdividend reinvestments net of unrealized gains and losses and distributions had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan).  Of this amount, $3.3$5.2 million washad been deferred into phantom Main Street stock units, representing 97,344160,352 shares of Main Street's common stock. Including phantom stock units issued through dividend reinvestment and net of any shares distributed, the phantom stock units outstanding as of December 31, 2018 represented 119,639 shares of Main Street'sStreet’s common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the consolidated statements of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but the related phantom stock units are included in operating expenses and weighted-average shares outstanding with the related dollar amount of the deferral included in total expenses in Main Street'sStreet’s consolidated statements of operations as earned. The dividend amounts related to additional phantom stock units are included in the statements of changes in net assets as an increase to dividends to stockholders offset by a corresponding increase to additional paid-in capital.

          NOTE N — SUBSEQUENT EVENTS

          In January 2019, Main Street ledDecember 2020, the External Investment Manager entered into an Investment Management Agreement with MS Private Loan Fund I, LP, a newprivate investment fund with a strategy to invest in Private Loan portfolio investment to facilitate the minority recapitalization of Centre Technologies, Inc. ("Centre"investments (the “Private Loan Fund”), a premier provider of IT hardware, softwarepursuant to which the External Investment Manager provides investment advisory and service solutions. Main Street, along with its co-investors, partnered with Centre's founder and Chief Executive Officer and management team to facilitate the transaction, with Main Street funding $18.1 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Houston, Texas, and founded in 2006, Centre has established itself as a mission critical IT solutions provider offering a full suite


          166


          management services to the Private Loan Fund in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund is a private investment fund exempt from registration under the 1940 Act that invests in debt investments in middle market companies generally with EBITDA between $7.5 million and $50 million and generally owned by a private equity sponsor, which Main Street generally refers to as “Private Loan” investments. In connection with the Private Loan Fund’s initial closing in December 2020, Main Street committed to contribute up to $10.0 million as a limited partner and will be entitled to distributions on such interest. In addition, certain of Main Street’s officers and employees (and certain of their immediate family members) have made capital commitments to the Private Loan Fund as limited partners and therefore have a direct pecuniary interests in the Private Loan Fund.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          From time to time, Main Street may make investments in clients of solutions including managed and hosted services, value-added sourcing and integration, and project services.

          the External Investment Manager in the form of debt capital on terms approved by our Board of Directors. In January 2019,2021, Main Street led new portfolio investmententered into a Term Loan Agreement with MSC Income (the “Term Loan Agreement”). The Term Loan Agreement was unanimously approved by Main Street’s Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act and the board of directors of MSC Income, including each director who is not an “interested person” of MSC Income or the External Investment Manager. The Term Loan Agreement provides for a term loan of $40.0 million to facilitateMSC Income, bearing interest at a fixed rate of 5.00% per annum, and matures in January 2026. Borrowings under the management buyoutTerm Loan Agreement are expressly subordinated and junior in right of CompareNetworks Inc. ("CompareNetworks"),payment to all secured indebtedness of MSC Income and are subject to a leading provider of media, marketing and technology solutionstwo-year no-call period that drive revenue for life science and healthcare product manufacturers.expires on January 27, 2023. Additionally, Main Street alongprovided the Private Loan Fund with its co-investors, partnered with CompareNetworks' foundersa revolving line of credit pursuant to an Unsecured Revolving Promissory Note, dated February 5, 2021 (the “Private Loan Fund Loan”), in an aggregate amount equal to the amount of limited partner capital commitments to the Private Loan Fund up to $50.0 million. Borrowings under the Private Loan Fund Loan bear interest at a fixed rate of 5.00% per annum and management team to facilitatewill mature on the transaction, withearlier of June 30, 2022 and the date of the Private Loan Fund’s final closing.

          NOTE N—SUBSEQUENT EVENTS

          In January 2021, Main Street funding $10.7issued $300.0 million in a combinationaggregate principal amount of first-lien, senior secured term debt3.00% unsecured notes due July 14, 2026 (the “3.00% Notes”) at an issue price of 99.004%. The total net proceeds from the 3.00% Notes, resulting from the issue price and a direct equity investment. Headquartered in South San Francisco, California,after underwriting discounts and founded in 2000, CompareNetworks provides life scientists, researchers, lab-based professionals, pharmaceutical professionals and healthcare professionals with digital tools and information resources to research, identify and determine which products and technologies to use.estimated offering expenses payable, were approximately $294.8 million.

                 In January 2019, Main Street fully exited its equity investment in Boss Industries, LLC ("Boss"). Boss markets, designs and manufacturers vehicle-mounted, and portable air compressor and generator systems utilized in municipal and utility services, energy product and industrial services. Main Street realized a gain of approximately $4.0 million on the exit of its equity investment in Boss.

          During February 2019,2021, Main Street declared regular monthly dividends of $0.200$0.205 per share for each month of April, May and June 2019.of 2021. These regular monthly dividends equal a total of $0.600$0.615 per share for the second quarter of 2019 and represent a 5.3% increase2021, unchanged from the monthly dividends paid in the second quarter of 2020. Including the monthly dividends declared for the second quarter of 2018. Including the dividends declared for the second quarter of 2019,2021, Main Street will have paid $25.420$30.830 per share in cumulative dividends since its October 2007 initial public offering.


          167


          Report of Independent Registered Public Accounting Firm

          Board of Directors and Stockholders'
          Stockholders

          Main Street Capital Corporation

          Opinion on financial statement schedule

          We have audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”) the consolidated financial statements of Main Street Capital Corporation and subsidiaries (the "Company"“Company”) referred to in our report dated March 1, 2019,February 26, 2021, which is included in the annual report on Form 10-K. Our audits of the consolidated financial statements also included the audit of the financial statement schedule (listed in the index appearing under Item 15(2)). In our opinion, this financial statement schedule, when considered in relation to the consolidated financial statements as a whole, presents fairly, in all material respects, the information set forth therein.

          Basis for opinion

          This financial statement schedule is the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s financial statement schedule based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

          /s/ GRANT THORNTON LLP

          Houston, Texas
          March 1, 2019


          February 26, 2021

          168


          Schedule 12-14

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments inIn and Advances to Affiliates

          December 31, 2018
          2020

          (dollarsdollars in thousands)

          Amount of

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2019

          Gross

          Gross

          2020

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2017
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2018
          Fair Value
           

              

          Investment(1)(10)(11)

              

          Geography

              

          Gain/(Loss)

              

          Gain/(Loss)

              

          Income(2)

              

          Fair Value

              

          Additions(3)

              

          Reductions(4)

              

          Fair Value

          Majority-owned investments

                           

            

          Majorityowned investments

            

            

            

            

            

            

            

            

            

          Café Brazil, LLC

           Member Units (8) $ $(120)$291 $4,900 $ $120 $4,780 

           

          Member Units

           

          (8)

          $

          $

          (410)

          $

          38

          $

          2,440

          $

          $

          410

          $

          2,030

          California Splendor Holdings LLC

           

          LIBOR Plus 8.00% (Floor 1.00%)

           

          (9)

           

           

          29

           

          1,154

           

          7,104

           

          18,239

           

          17,300

           

          8,043

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (9)

           

           

          (65)

           

          3,291

           

          27,801

           

          53

           

          65

           

          27,789

          California Splendor Holdings LLC

           LIBOR Plus 8.00% (Floor 1.00%) (9)   1,025  21,128 10,200 10,928 

           LIBOR Plus 10.00% (Floor 1.00%) (9)   2,990  27,755  27,755 

           Preferred Member Units (9)  (1,030) 178  12,500 2,755 9,745 

           

          Preferred Member Units

           

          (9)

           

           

           

          1,092

           

          7,163

           

          1,092

           

           

          8,255

           

          Preferred Member Units

           

          (9)

           

           

          (1,141)

           

          250

           

          7,382

           

           

          1,141

           

          6,241

          Clad-Rex Steel, LLC

           LIBOR Plus 9.50% (Floor 1.00%) (5)  (33) 1,517 13,280 33 1,233 12,080 

           

          LIBOR Plus 9.50% (Floor 1.00%)

           

          (5)

           

           

          49

           

          1,195

           

          10,781

           

          72

           

           

          10,853

           Member Units (5)  1,110 500 9,500 1,110  10,610 

           10% Secured Debt (5)   117 1,183  22 1,161 

           Member Units (5)  70  280 70  350 

           

          Member Units

           

          (5)

           

           

          (1,020)

           

          587

           

          9,630

           

           

          1,020

           

          8,610

           

          10% Secured Debt

           

          (5)

           

           

          (11)

           

          113

           

          1,137

           

           

          37

           

          1,100

           

          Member Units

           

          (5)

           

           

          70

           

           

          460

           

          70

           

           

          530

          CMS Minerals Investments

           Member Units (9)  921 117 2,392 921 733 2,580 

           

          Member Units

           

          (9)

           

           

          (69)

           

           

          1,900

           

           

          276

           

          1,624

          Cody Pools, Inc.

           

          LIBOR Plus 10.50% (Floor 1.75%)

           

          (8)

          125

          1,798

          16,000

          1,784

          14,216

           

          Preferred Member Units

           

          (8)

          6,623

          87

          14,940

          14,940

          CompareNetworks Topco, LLC

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (9)

           

           

          43

           

          1,123

           

          8,288

           

          2,075

           

          2,410

           

          7,953

           

          Preferred Member Units

           

          (9)

           

           

          3,770

           

          632

           

          3,010

           

          3,770

           

           

          6,780

          Direct Marketing Solutions, Inc.

           LIBOR Plus 11.00% (Floor 1.00%) (9)   2,502  18,631 783 17,848 

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (9)

           

           

          (110)

           

          1,934

           

          15,707

           

          37

           

          737

           

          15,007

           Preferred Stock (9)  6,500   14,900  14,900 

           

          Preferred Stock

           

          (9)

           

           

          (820)

           

           

          20,200

           

           

          820

           

          19,380

          Gamber-Johnson Holdings, LLC

           LIBOR Plus 7.50% (Floor 2.00%) (5)  (57) 2,579 23,400 57 1,971 21,486 

           

          LIBOR Plus 7.00% (Floor 2.00%)

           

          (5)

           

           

          (41)

           

          1,776

           

          19,022

           

          1,640

           

          824

           

          19,838

           Member Units (5)  22,090 1,797 23,370 22,090  45,460 

           

          Member Units

           

          (5)

           

           

          (920)

           

          3,537

           

          53,410

           

           

          920

           

          52,490

          GRT Rubber Technologies LLC

           LIBOR Plus 7.00% (8)  (30) 1,199 11,603 30 1,893 9,740 

           

          LIBOR Plus 7.00%

           

          (8)

           

           

           

          1,294

           

          15,016

           

          1,759

           

           

          16,775

           Member Units (8)  17,090 2,876 21,970 17,090  39,060 

           

          Member Units

           

          (8)

           

           

          (2,550)

           

          3,542

           

          47,450

           

           

          2,550

           

          44,900

          Guerdon Modular Holdings, Inc.

           

          16.00% Secured Debt

           

          (9)

           

          (12,776)

           

          12,588

           

           

           

          12,776

           

          12,776

           

           

          LIBOR Plus 8.50% (Floor 1.00%)

           

          (9)

           

          (993)

           

          1,010

           

           

           

          993

           

          993

           

           

          Preferred Stock

           

          (9)

           

          (1,140)

           

          1,140

           

           

           

          1,140

           

          1,140

           

           

          Common Stock

           

          (9)

           

          (2,849)

           

          2,983

           

           

           

          2,849

           

          2,849

           

           

          Warrants

           

          (9)

           

           

           

           

           

           

           

          Harborside Holdings, LLC

           Member Units (8)    9,400 100  9,500 

           

          Member Units

           

          (8)

           

          (2,406)

           

          (3,054)

           

           

          9,560

           

          100

           

          9,660

           

          Harris Preston Fund Investments

           LP Interests (2717 MH, L.P.) (8)  93  536 597  1,133 

          Hydratec, Inc.

           Common Stock (9) 7,922 (7,905) 332 15,000  15,000  

          IDX Broker, LLC

           11.5% Secured Debt (9)  (47) 1,765 15,250 47 947 14,350 

           

          11.00% Secured Debt

           

          (9)

           

           

          (42)

           

          711

           

          13,400

           

          42

           

          13,442

           

           Preferred Member Units (9)  1,860 276 11,660 1,860  13,520 

           

          Preferred Member Units

           

          (9)

           

          9,337

           

          (9,088)

           

          1,193

           

          15,040

           

           

          15,040

           

          Jensen Jewelers of Idaho, LLC

           Prime Plus 6.75% (Floor 2.00%) (9)  (20) 450 3,955 20 620 3,355 

           

          Prime Plus 6.75% (Floor 2.00%)

           

          (9)

           

           

          (14)

           

          423

           

          4,000

           

          14

           

          614

           

          3,400

           Member Units (9)  (10) 250 5,100  10 5,090 

           

          Member Units

           

          (9)

           

           

          (650)

           

          683

           

          8,270

           

           

          650

           

          7,620

          Lamb Ventures, LLC

           11% Secured Debt (8)  (18) 976 9,942 218 1,821 8,339 

           Preferred Equity (8)    400   400 

           Member Units (8)  650  6,790 650  7,440 

           9.5% Secured Debt (8)   42 432   432 

           Member Units (8)  110 53 520 110  630 

          Kickhaefer Manufacturing Company, LLC

           

          11.50% Secured Debt

           

          (5)

           

           

           

          2,947

           

          24,982

           

          1,433

           

          4,146

           

          22,269

           

          Member Units

           

          (5)

           

           

           

           

          12,240

           

           

           

          12,240

           

          9.00% Secured Debt

           

          (5)

           

           

           

          357

           

          3,939

           

           

          30

           

          3,909

           

          Member Units

           

          (5)

           

           

           

          84

           

          1,160

           

           

           

          1,160

          Market Force Information, LLC

           

          12.00% PIK Secured Debt

           

          (9)

           

           

          (11,762)

           

          242

           

          22,621

           

          2,794

           

          11,853

           

          13,562

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (9)

           

           

           

          116

           

          2,695

           

          1,791

           

          2,886

           

          1,600

           

          Member Units

           

          (9)

           

           

          (5,280)

           

           

          5,280

           

           

          5,280

           

          MH Corbin Holding LLC

           

          13.00% Secured Debt

           

          (5)

           

           

          (322)

           

          1,181

           

          8,890

           

          32

           

          642

           

          8,280

           

          Preferred Member Units

           

          (5)

           

           

          (20)

           

           

          20

           

           

          20

           

           

          Preferred Member Units

           

          (5)

           

           

          (2,400)

           

           

          4,770

           

           

          2,400

           

          2,370

          Mid-Columbia Lumber Products, LLC

           10% Secured Debt (9)   182 1,390 356  1,746 

           

          10.00% Secured Debt

           

          (9)

           

           

          148

           

          44

           

          1,602

           

          148

           

          1,750

           

           12% Secured Debt (9)   491 3,863 17  3,880 

           Member Units (9)  1,689 6 1,575 2,285  3,860 

           9.5% Secured Debt (9)   74 791  45 746 

           Member Units (9)  180 57 1,290 180  1,470 

           

          12.00% Secured Debt

           

          (9)

           

           

          256

           

          119

           

          3,644

           

          256

           

          3,900

           

           

          Member Units

           

          (9)

           

          (4,240)

           

          3,239

           

          1

           

           

          101

           

          101

           

           

          9.50% Secured Debt

           

          (9)

           

           

           

          30

           

          701

           

          19

           

          720

           

           

          Member Units

           

          (9)

           

           

          (850)

           

          20

           

          1,640

           

          709

           

          2,349

           

          MSC Adviser I, LLC

           Member Units (8)  23,980 3,822 41,768 23,980  65,748 

           

          Member Units

           

          (8)

           

           

          12,740

           

          2,491

           

          74,520

           

          42,240

           

           

          116,760

          Mystic Logistics Holdings, LLC

           

          12.00% Secured Debt

           

          (6)

           

           

           

          814

           

          6,253

           

          990

           

          520

           

          6,723

           

          Common Stock

           

          (6)

           

           

          580

           

          203

           

          8,410

           

          580

           

           

          8,990

          Mystic Logistics Holdings, LLC

           12% Secured Debt (6)   969 7,696 42 232 7,506 

           Common Stock (6)  (6,610)  6,820  6,610 210 

          OMi Holdings, Inc.

           

          Common Stock

           

          (8)

           

           

          3,430

           

          2,343

           

          16,950

           

          3,430

           

           

          20,380

          Pearl Meyer Topco LLC

           

          12.00% Secured Debt

           

          (6)

           

           

           

          3,356

           

           

          37,202

           

           

          37,202

           

          Member Units

           

          (6)

           

           

          2,940

           

          538

           

           

          16,740

           

          800

           

          15,940

          NexRev LLC

           11% Secured Debt (8)   1,829  17,288  17,288 

           Preferred Member Units (8)  1,010 60  7,890  7,890 

          NRP Jones, LLC

           12% Secured Debt (5)   776 6,376   6,376 

           Member Units (5)  2,710  3,250 2,710  5,960 

          PPL RVs, Inc.

           LIBOR Plus 7.00% (Floor 0.50%) (8)  (35) 1,487 16,100 35 1,035 15,100 

           Common Stock (8)  (2,060) 3 12,440  2,060 10,380 

          Principle Environmental, LLC

           13% Secured Debt (8)  (51) 1,037 7,477 51 51 7,477 

          (d/b.a TruHorizon

           Preferred Member Units (8)  1,600 1,482 11,490 1,600  13,090 

          Environmental Solutions)

           Warrants (8)  130  650 130  780 

          Quality Lease Service, LLC

           Zero Coupon Secured Debt (7)  (500)  6,950  500 6,450 

           Member Units (7)  (2,303)  4,938 1,174 2,303 3,809 

          Tedder Industries, LLC

           12%, Secured Debt (9)   20  480  480 

           12%, Secured Debt (9)   1,010  16,246  16,246 

           Member Units (9)     7,476  7,476 

          The MPI Group, LLC

           9% Secured Debt (7)  171 268 2,410 172  2,582 

           Series A Preferred Units (7)  440   440  440 

           Warrants (7)        

           Member Units (7)  90 190 2,389 90  2,479 

          Uvalco Supply, LLC

           9% Secured Debt (8)   7 348  348  

           Member Units (8) 301 (301) 898 3,880  3,880  

          Vision Interests, Inc.

           13% Secured Debt (9)   364 2,797 17 661 2,153 

           Series A Preferred Stock (9)  740  3,000 740  3,740 

           Common Stock (9)  280   280  280 

          169


          Table of Contents

          Amount of

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2019

          Gross

          Gross

          2020

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2017
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2018
          Fair Value
           

              

          Investment(1)(10)(11)

              

          Geography

              

          Gain/(Loss)

              

          Gain/(Loss)

              

          Income(2)

              

          Fair Value

              

          Additions(3)

              

          Reductions(4)

              

          Fair Value

          Ziegler's NYPD, LLC

           6.5% Secured Debt (8)  2 68 996 4  1,000 

           12% Secured Debt (8)   47 300 125  425 

           14% Secured Debt (8)   390 2,750   2,750 

           Warrants (8)        

           Preferred Member Units (8)  (1,970)  3,220  1,971 1,249 

          PPL RVs, Inc.

           

          LIBOR Plus 7.00% (Floor 0.50%)

           

          (8)

           

           

          25

           

          1,204

           

          12,118

           

          188

           

          500

           

          11,806

           

          Common Stock

           

          (8)

           

           

          1,570

           

          690

           

          9,930

           

          1,570

           

           

          11,500

          Principle Environmental, LLC
          (d/b/a TruHorizon
          Environmental Solutions)

           

          13.00% Secured Debt

           

          (8)

           

           

          44

           

          877

           

          6,397

           

           

           

          6,397

           

          Preferred Member Units

           

          (8)

           

           

          (2,890)

           

           

          13,390

           

           

          2,890

           

          10,500

           

          Warrants

           

          (8)

           

           

          (220)

           

           

          1,090

           

           

          220

           

          870

          Quality Lease Service, LLC

           

          Member Units

           

          (7)

           

           

          (4,880)

           

           

          9,289

           

          301

           

          5,130

           

          4,460

          Trantech Radiator Topco, LLC

           

          12.00% Secured Debt

           

          (7)

           

           

           

          1,105

           

          9,102

           

          22

           

          480

           

          8,644

           

          Common Stock

           

          (7)

           

           

          1,375

           

          116

           

          4,655

           

          1,375

           

           

          6,030

          Vision Interests, Inc.

           

          13.00% Secured Debt

           

          (9)

           

           

           

          268

           

          2,028

           

           

           

          2,028

           

          Series A Preferred Stock

           

          (9)

           

           

          (929)

           

           

          4,089

           

           

          929

           

          3,160

           

          Common Stock

           

          (9)

           

          (3,586)

           

          3,296

           

           

          409

           

          3,296

           

          3,705

           

          Ziegler’s NYPD, LLC

           

          6.50% Secured Debt

           

          (8)

           

           

          (21)

           

          66

           

          1,000

           

           

          21

           

          979

           

          12.00% Secured Debt

           

          (8)

           

           

           

          76

           

          625

           

           

           

          625

           

          14.00% Secured Debt

           

          (8)

           

           

           

          391

           

          2,750

           

           

           

          2,750

           

          Warrants

           

          (8)

           

           

           

           

           

           

           

           

          Preferred Member Units

           

          (8)

           

           

          511

           

           

          1,269

           

          511

           

           

          1,780

          Other controlled investments

                           

           

           

           

           

           

           

           

           

           

            

          Access Media Holdings, LLC

           10% PIK Secured Debt (5)  (8,592) 25 17,150  8,592 8,558 

           

          10.00% PIK Secured Debt

           

          (5)

           

          (19,698)

           

          17,442

           

          50

           

          6,387

           

          17,442

           

          23,829

           

           Preferred Member Units(12) (5)  (1,517)   1,233 1,517 (284)

           Member Units (5)        

           

          Preferred Member Units

           

          (5)

           

          (9,376)

           

          9,660

           

           

          (284)

           

          9,660

           

          9,376

           

           

          Member Units

           

          (5)

           

          (1)

           

           

           

           

          1

           

          1

           

          Analytical Systems Keco, LLC

           

          LIBOR Plus 10.00% (Floor 2.00%)

           

          (8)

           

           

           

          724

           

          5,210

           

          74

           

          410

           

          4,874

           

          Preferred Member Units

           

          (8)

           

           

           

           

          3,200

           

           

           

          3,200

           

          Warrants

           

          (8)

           

           

          (306)

           

           

          316

           

           

          306

           

          10

          ASC Interests, LLC

           11% Secured Debt (8)   199 1,795  173 1,622 

           

          13.00% Secured Debt

           

          (8)

           

           

           

          237

           

          1,639

           

          100

           

          24

           

          1,715

           Member Units (8)  (160)  1,530  160 1,370 

           

          Member Units

           

          (8)

           

           

          (170)

           

           

          1,290

           

           

          170

           

          1,120

          ATS Workholding, LLC

           5% Secured Debt (9)  (117) 334 3,249 1,258 117 4,390 

           

          5.00% Secured Debt

           

          (9)

           

           

          (1,332)

           

          282

           

          4,521

           

          179

           

          1,353

           

          3,347

           Preferred Member Units (9)    3,726   3,726 

           

          Preferred Member Units

           

          (9)

           

           

          (939)

           

           

          939

           

           

          939

           

          Bolder Panther Group, LLC

           

          LIBOR Plus 9.00% (Floor 1.50%)

           

          (9)

           

           

           

          579

           

           

          27,225

           

           

          27,225

           

          Preferred Member Units

           

          (9)

           

           

           

           

           

          10,194

           

           

          10,194

           

          Preferred Member Units

           

          (9)

           

           

           

           

           

          14,000

           

           

          14,000

          Bond-Coat, Inc.

           12% Secured Debt (8)  229 1,482 11,596   11,596 

           

          15.00% Secured Debt

           

          (8)

           

          (3)

           

           

          1,399

           

          11,473

           

          123

           

          11,596

           

           Common Stock (8)    9,370   9,370 

           

          Common Stock

           

          (8)

           

           

          (6,260)

           

           

          8,300

           

           

          6,260

           

          2,040

          Brewer Crane Holdings, LLC

           LIBOR Plus 10.00% (Floor 1.00%) (9)   1,274  9,839 372 9,467 

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (9)

           

           

           

          1,012

           

          8,989

           

          20

           

          496

           

          8,513

           Preferred Member Units (9)   117  4,280  4,280 

           

          Preferred Member Units

           

          (9)

           

           

          1,570

           

          120

           

          4,280

           

          1,570

           

           

          5,850

          Bridge Capital Solutions Corporation

           

          13.00% Secured Debt

           

          (6)

           

           

           

          1,771

           

          7,797

           

          606

           

           

          8,403

           

          Warrants

           

          (6)

           

           

          (280)

           

           

          3,500

           

           

          280

           

          3,220

           

          13.00% Secured Debt

           

          (6)

           

           

           

          135

           

          996

           

          2

           

           

          998

           

          Preferred Member Units

           

          (6)

           

           

           

          100

           

          1,000

           

           

           

          1,000

          CBT Nuggets, LLC

           Member Units (9)  (27,950) 11,395 89,560  27,950 61,610 

           

          Member Units

           

          (9)

           

           

          (4,770)

           

          954

           

          50,850

           

           

          4,770

           

          46,080

          Centre Technologies Holdings, LLC

           

          LIBOR Plus 10.00% (Floor 2.00%)

           

          (8)

           

           

           

          1,480

           

          12,136

           

          25

           

          612

           

          11,549

           

          Preferred Member Units

           

          (8)

           

           

          320

           

          120

           

          5,840

           

          320

           

           

          6,160

          Chamberlin Holding LLC

           LIBOR Plus 10.00% (Floor 1.00%) (8)   2,645  21,425 1,397 20,028 

           

          LIBOR Plus 8.00% (Floor 1.00%)

           

          (8)

           

           

          (47)

           

          1,942

           

          17,773

           

          47

           

          2,608

           

          15,212

           Member Units (8)  7,500 2,349  18,940  18,940 

           Member Units (8)     732  732 

           

          Member Units

           

          (8)

           

           

          4,030

           

          4,134

           

          24,040

           

          4,030

           

           

          28,070

           

          Member Units

           

          (8)

           

           

          (455)

           

          68

           

          1,450

           

          275

           

          455

           

          1,270

          Charps, LLC

           LIBOR Plus 7.00% (Floor 1.00%) (5)   45  1,600 1,600  

           

          15.00% Secured Debt

           

          (5)

           

           

           

          258

           

          2,000

           

           

          1,331

           

          669

           12% Secured Debt (5)  83 2,034 18,225 163 6,500 11,888 

           Preferred Member Units (5)  1,620 250 650 1,620  2,270 

           

          8.67% Current / 1.33% PIK

           

          (5)

           

           

          1,716

           

          1,499

           

           

          8,903

           

          428

           

          8,475

           

          Preferred Member Units

           

          (5)

           

           

          2,718

           

          559

           

          6,920

           

          3,600

           

           

          10,520

          Copper Trail Fund Investments

           LP Interests (CTMH, LP) (9)   22  872  872 

           

          LP Interests (CTMH, LP)

           

          (9)

           

           

           

           

          872

           

           

          125

           

          747

           LP Interests (Copper Trail Energy Fund I, LP) (9)  675 57 2,500 1,944 274 4,170 

          Datacom, LLC

           

          8.00% Secured Debt

           

          (8)

           

           

           

           

          1,615

           

           

           

          1,615

           

          10.50% PIK Secured Debt

           

          (8)

           

           

          389

           

           

          10,142

           

          389

           

           

          10,531

          Datacom, LLC

           8% Secured Debt (8)  (110) 33 1,575 225 110 1,690 

           10.50% PIK Secured Debt (8)  (1,493) 330 11,110 169 1,493 9,786 

           Class A Preferred Member Units (8)  (843)  730 113 843  

           Class B Preferred Member Units (8)        

           

          Class A Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

           

          Class B Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

          Digital Products Holdings LLC

           LIBOR Plus 10.00% (Floor 1.00%) (5)   2,713  26,171 660 25,511 

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (5)

           

           

          1,026

           

          2,177

           

          18,452

           

          1,072

           

          1,447

           

          18,077

           Preferred Member Units (5)   150  8,800 334 8,466 

           

          Preferred Member Units

           

          (5)

           

           

          4,661

           

          200

           

          5,174

           

          4,661

           

           

          9,835

          Garreco, LLC

           LIBOR Plus 8.00% (Floor 1.00%, Ceiling 1.50%) (8)   642 5,443 18 362 5,099 

           

          LIBOR Plus 8.00% (Floor 1.00%, Ceiling 1.50%)

           

          (8)

           

           

           

          428

           

          4,515

           

          4

           

           

          4,519

           Member Units (8)  650  1,940 650  2,590 

          Guerdon Modular Holdings, Inc.

           13% Secured Debt (9)  (570) 1,312 10,632 2,340 970 12,002 

           Preferred Stock (9)        

           Common Stock (9)        

           Warrants (9)        

           

          Member Units

           

          (8)

           

           

          (1,150)

           

           

          2,560

           

           

          1,150

           

          1,410

          Gulf Manufacturing, LLC

           Member Units (8)  1,630 1,227 10,060 1,630  11,690 

           

          Member Units

           

          (8)

           

           

          (2,920)

           

          135

           

          7,430

           

           

          2,920

           

          4,510

          Gulf Publishing Holdings, LLC

           

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 5.25% / 5.25% PIK

           

          (8)

           

           

           

          27

           

          280

           

          17

           

          47

           

          250

           

          6.25% Current / 6.25% PIK

           

          (8)

           

           

          (1,091)

           

          1,650

           

          12,493

           

          1,055

           

          1,504

           

          12,044

          Gulf Publishing Holdings, LLC

           LIBOR Plus 9.50% (Floor 1.00%) (8)   11 80 160 240  

           12.5% Secured Debt (8)   1,634 12,703 25 134 12,594 

           Member Units (8)  (720)  4,840  720 4,120 

           

          Member Units

           

          (8)

           

           

          (2,420)

           

           

          2,420

           

           

          2,420

           

          Harris Preston Fund Investments

           

          LP Interests (2717 MH, L.P.)

           

          (8)

           

          693

           

          (319)

           

           

          3,157

           

          52

           

          507

           

          2,702

           

          LP Interests (2717 HPP-MH, L.P.)

           

          (8)

           

           

           

           

           

          250

           

           

          250

          Harrison Hydra-Gen, Ltd.

           Common Stock (8)  4,490 180 3,580 4,490  8,070 

           

          Common Stock

           

          (8)

           

           

          (2,520)

           

          104

           

          7,970

           

           

          2,520

           

          5,450

          HW Temps LLC

           LIBOR Plus 13.00% (Floor 1.00%) (6)   1,431 9,918 20  9,938 

           Preferred Member Units (6)  2 170 3,940 2  3,942 

          KBK Industries, LLC

           10% Secured Debt (5)  (3) 9 375 3 378  

           12.5% Secured Debt (5)  (33) 546 5,900 33 5,933  

           Member Units (5)  4,190 842 4,420 4,190  8,610 

          Kickhaefer Manufacturing Company, LLC

           11.5% Secured Debt (5)   33  1,045  1,045 

           11.5% Secured Debt (5)   1,125  27,730  27,730 

           Member Units (5)     12,240  12,240 

           9.0% Secured Debt (5)   63  3,970  3,970 

           Member Units (5)     992  992 

          Marine Shelters Holdings, LLC

           12% PIK Secured Debt (8) (3,361) 3,078   3,361 3,361  

           Preferred Member Units (8) (5,352) 5,352   5,352 5,352  
          ��

          Market Force Information, LLC

           LIBOR Plus 7.00% (Floor 1.00%) (9)   26  680 480 200 

           LIBOR Plus 11.00% (Floor 1.00%) (9)   3,121 23,143 41 560 22,624 

           Member Units (9)  (1,600)  14,700  1,600 13,100 

          MH Corbin Holding LLC

           10% Current/3% PIK Secured Debt (5)  (387) 1,187 12,526 119 912 11,733 

           Preferred Member Units (5)  (5,000) 140 6,000  5,000 1,000 

          NAPCO Precast, LLC

           LIBOR Plus 8.50% (8)  (25) 1,277 11,475 25 25 11,475 

           Member Units (8)  2,320 1,862 11,670 2,320  13,990 

          NRI Clinical Research, LLC

           14% Secured Debt (9)  140 982 4,265 3,035 615 6,685 

           Warrants (9)  160  500 160  660 

           Member Units (9)  (22)  2,500 152 174 2,478 

          NuStep, LLC

           12% Secured Debt (5)   2,550 20,420 38  20,458 

           Preferred Member Units (5)    10,200   10,200 
          ���

          OMi Holdings, Inc.

           Common Stock (8)  1,910 1,608 14,110 1,910  16,020 

          Pegasus Research Group, LLC

           Member Units (8)  (2,630)  10,310  2,630 7,680 

          170


          Table of Contents

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2017
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2018
          Fair Value
           

          River Aggregates, LLC

           Zero Coupon Secured Debt (8)  (28) 43 707 43 28 722 

           Member Units (8)    4,610   4,610 

           Member Units (8)  370  2,559 371  2,930 

          SoftTouch Medical Holdings LLC

           LIBOR Plus 9.00% (Floor 1.00%) (7)  (30) 119 7,140 30 7,170  

           Member Units (7) 5,171 (5,159) 865 10,089  10,089  

          Other

                           

          Amounts related to investments transferred to or from other 1940 Act classification during the period

               25 (10,632)    

          Total Control investments

             $4,681 $37,826 $85,853 $750,706 $400,284 $156,629 $1,004,993 

          Amount of

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2019

          Gross

          Gross

          2020

          Company

              

          Investment(1)(10)(11)

              

          Geography

              

          Gain/(Loss)

              

          Gain/(Loss)

              

          Income(2)

              

          Fair Value

              

          Additions(3)

              

          Reductions(4)

              

          Fair Value

          J&J Services, Inc.

           

          11.50% Secured Debt

           

          (7)

           

           

          103

           

          1,943

           

          17,430

           

          170

           

          4,800

           

          12,800

           

          Preferred Stock

           

          (7)

           

           

          5,595

           

           

          7,160

           

          5,595

           

          75

           

          12,680

          KBK Industries, LLC

           

          Member Units

           

          (5)

           

           

          (2,270)

           

          454

           

          15,470

           

           

          2,270

           

          13,200

          NAPCO Precast, LLC

           

          Member Units

           

          (8)

           

           

          1,340

           

          642

           

          14,760

           

          1,340

           

           

          16,100

          Nebraska Vet AcquireCo, LLC (NVS)

           

          12.00% Secured Debt

           

          (5)

           

           

           

          223

           

           

          10,395

           

           

          10,395

           

          Preferred Member Units

           

          (5)

           

           

           

           

           

          6,500

           

           

          6,500

          NexRev LLC

           

          11.00% PIK Secured Debt

           

          (8)

           

           

          (289)

           

          1,973

           

          17,469

           

          201

           

          944

           

          16,726

           

          Preferred Member Units

           

          (8)

           

           

          (4,840)

           

          (35)

           

          6,310

           

           

          4,840

           

          1,470

          NRI Clinical Research, LLC

           

          9.00% Secured Debt

           

          (9)

           

           

          (47)

           

          752

           

          5,981

           

          1,566

           

          1,927

           

          5,620

           

          Warrants

           

          (9)

           

           

          260

           

           

          1,230

           

          260

           

           

          1,490

           

          Member Units

           

          (9)

           

           

          612

           

          548

           

          4,988

           

          1,160

           

          548

           

          5,600

          NRP Jones, LLC

           

          12.00% Secured Debt

           

          (5)

           

           

           

          764

           

          6,376

           

           

          4,296

           

          2,080

           

          Member Units

           

          (5)

           

          1,279

           

          (1,889)

           

          384

           

          4,710

           

           

          1,889

           

          2,821

          NuStep, LLC

           

          12.00% Secured Debt

           

          (5)

           

           

           

          2,444

           

          19,703

           

          196

           

          2,706

           

          17,193

           

          Preferred Member Units

           

          (5)

           

           

          580

           

           

          10,200

           

          580

           

           

          10,780

          Pegasus Research Group, LLC

           

          Member Units

           

          (8)

           

           

          660

           

          491

           

          8,170

           

          660

           

           

          8,830

          Project BarFly, LLC

           

          Member Units

           

          (5)

           

           

           

           

           

          1,584

           

           

          1,584

           

          7.00% Secured Debt

           

          (5)

           

          (8,591)

           

          8,961

           

           

          7,736

           

          2,438

           

          10,174

           

           

          7.00% Secured Debt

           

          (5)

           

          (110)

           

           

           

           

          110

           

          110

           

           

          Warrants

           

          (5)

           

          (607)

           

          607

           

           

           

          607

           

          607

           

           

          7.00% Secured Debt

           

          (5)

           

           

           

          3

           

           

          343

           

           

          343

           

          Warrants

           

          (5)

           

          (473)

           

          473

           

           

           

          473

           

          473

           

          River Aggregates, LLC

           

          Zero Coupon Secured Debt

           

          (8)

           

           

          28

           

           

          722

           

          28

           

          750

           

           

          Member Units

           

          (8)

           

          4,015

           

          (3,840)

           

          187

           

          4,990

           

           

          4,990

           

           

          Member Units

           

          (8)

           

           

          71

           

           

          3,169

           

          71

           

           

          3,240

          Tedder Industries, LLC

           

          12.00% Secured Debt

           

          (9)

           

           

           

          2,097

           

          16,912

           

          29

           

          640

           

          16,301

           

          Preferred Member Units

           

          (9)

           

           

           

           

          8,136

           

           

           

          8,136

          UnionRock Energy Fund II, LP

           

          LP Interests

           

          (9)

           

           

           

           

           

          2,894

           

           

          2,894

          Other

           

           

           

           

           

           

           

           

           

          Amounts related to investments transferred to or from other
          1940 Act classification during the period

           

           

           

          (8,069)

           

          4,251

           

          9

           

          (3,172)

           

           

           

          Total Control investments

           

           

           

          (59,594)

           

          37,924

           

          81,155

           

          1,032,721

           

          336,485

           

          258,653

           

          1,113,725

          Affiliate Investments

           

           

           

           

           

           

           

           

           

          AAC Holdings, Inc.

           

          18.00% (10.00% Cash, 8.00% PIK) Secured Debt

           

          (7)

           

          (11,210)

           

          4,568

           

          119

           

          11,530

           

          21,359

           

          23,702

           

          9,187

           

          Common Stock

           

          (7)

           

           

           

           

           

          3,148

           

           

          3,148

           

          Warrants

           

          (7)

           

           

          2,938

           

           

           

          2,938

           

           

          2,938

          AFG Capital Group, LLC

           

          10.00% Secured Debt

           

          (8)

           

           

           

          66

           

          838

           

           

          347

           

          491

           

          Preferred Member Units

           

          (8)

           

           

          630

           

           

          5,180

           

          630

           

           

          5,810

          American Trailer Rental Group LLC

           

          LIBOR Plus 7.25% (Floor 1.00%)

           

          (5)

           

           

          (182)

           

          1,119

           

          27,087

           

          182

           

          27,269

           

           

          Member Units

           

          (5)

           

           

          3,729

           

           

          8,540

           

          7,470

           

           

          16,010

          BBB Tank Services, LLC

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (8)

           

           

          (51)

           

          668

           

          4,698

           

          75

           

          51

           

          4,722

           

          Preferred Member Units

           

          (8)

           

           

           

          20

           

          131

           

          20

           

           

          151

           

          Member Units

           

          (8)

           

           

          (10)

           

           

          290

           

           

          10

           

          280

          Boccella Precast Products LLC

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (6)

           

           

          (138)

           

          982

           

          13,244

           

          138

           

          13,382

           

           

          Member Units

           

          (6)

           

           

          (230)

           

          619

           

          6,270

           

           

          230

           

          6,040

          Buca C, LLC

           

          LIBOR Plus 9.25% (Floor 1.00%)

           

          (7)

           

           

          (4,562)

           

          2,032

           

          18,794

           

          24

           

          4,562

           

          14,256

           

          Preferred Member Units

           

          (7)

           

           

          (4,770)

           

          69

           

          4,701

           

          69

           

          4,770

           

          CAI Software LLC

           

          12.50% Secured Debt

           

          (6)

           

           

          257

           

          3,001

           

          9,160

           

          40,830

           

          2,516

           

          47,474

           

          Member Units

           

          (6)

           

           

          636

           

          10

           

          5,210

           

          1,980

           

           

          7,190

          Chandler Signs Holdings, LLC

           

          Class A Units

           

          (8)

           

           

          (1,280)

           

          (91)

           

          2,740

           

           

          1,280

           

          1,460

          Charlotte Russe, Inc

           

          Common Stock

           

          (9)

           

           

           

           

           

           

           

          Classic H&G Holdings, LLC

           

          12.00% Secured Debt

           

          (6)

           

           

          217

           

          3,112

           

           

          26,000

           

          1,200

           

          24,800

           

          Preferred Member Units

           

          (6)

           

           

          3,750

           

          469

           

           

          9,510

           

           

          9,510

          Congruent Credit Opportunities Funds

           

          LP Interests (Fund II)

           

          (8)

           

           

           

           

          855

           

           

          761

           

          94

           

          LP Interests (Fund III)

           

          (8)

           

           

          (515)

           

          823

           

          13,915

           

           

          2,375

           

          11,540

          Copper Trail Fund Investments

           

          LP Interests (Copper Trail Energy Fund I, LP)

           

          (9)

           

           

          (744)

           

          698

           

          2,362

           

           

          580

           

          1,782

          Dos Rios Partners

           

          LP Interests (Dos Rios Partners, LP)

           

          (8)

           

           

          (2,375)

           

           

          7,033

           

          759

           

          2,375

           

          5,417

           

          LP Interests (Dos Rios Partners - A, LP)

           

          (8)

           

           

          (754)

           

           

          2,233

           

          241

           

          754

           

          1,720

          East Teak Fine Hardwoods, Inc.

           

          Common Stock

           

          (7)

           

           

          (100)

           

           

          400

           

           

          100

           

          300

          EIG Fund Investments

           

          LP Interests (EIG Global Private Debt fund-A, L.P.)

           

          (8)

           

          6

           

          (165)

           

          141

           

          720

           

          110

           

          304

           

          526

          Freeport Financial Funds

           

          LP Interests (Freeport Financial SBIC Fund LP)

           

          (5)

           

           

          (514)

           

           

          5,778

           

           

          514

           

          5,264

           

          LP Interests (Freeport First Lien Loan Fund III LP)

           

          (5)

           

           

          (204)

           

          930

           

          9,696

           

          989

           

          364

           

          10,321

          Harris Preston Fund Investments

           

          LP Interests (HPEP 3, L.P.)

           

          (8)

           

           

          187

           

           

          2,474

           

          784

           

           

          3,258


          171


          Table of Contents

          Amount of

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2019

          Gross

          Gross

          2020

          Company

              

          Investment(1)(10)(11)

              

          Geography

              

          Gain/(Loss)

              

          Gain/(Loss)

              

          Income(2)

              

          Fair Value

              

          Additions(3)

              

          Reductions(4)

              

          Fair Value

          Hawk Ridge Systems, LLC

           

          LIBOR Plus 6.00% (Floor 1.00%)

           

          (9)

           

           

           

          70

           

          600

           

          1,384

           

          1,984

           

           

          11.00% Secured Debt

           

          (9)

           

           

          (31)

           

          1,758

           

          13,400

           

          5,031

           

          31

           

          18,400

           

          Preferred Member Units

           

          (9)

           

           

          130

           

          378

           

          7,900

           

          130

           

           

          8,030

           

          Preferred Member Units

           

          (9)

           

           

           

           

          420

           

           

           

          420

          Houston Plating and Coatings, LLC

           

          8.00% Unsecured Convertible Debt

           

          (8)

           

           

          (1,360)

           

          244

           

          4,260

           

           

          1,360

           

          2,900

           

          Member Units

           

          (8)

           

           

          (5,250)

           

          261

           

          10,330

           

           

          5,250

           

          5,080

          I-45 SLF LLC

           

          Member Units

           

          (8)

           

           

          (1,818)

           

          2,346

           

          14,407

           

          3,200

           

          1,818

           

          15,789

          L.F. Manufacturing Holdings, LLC

           

          Preferred Member Units

           

          (8)

           

           

           

          12

           

          81

           

          12

           

           

          93

           

          Member Units

           

          (8)

           

           

           

           

          2,050

           

           

           

          2,050

          OnAsset Intelligence, Inc.

           

          12.00% PIK Secured Debt

           

          (8)

           

           

           

          827

           

          6,474

           

          827

           

           

          7,301

           

          10.00% PIK Secured Debt

           

          (8)

           

           

           

          6

           

          58

           

          9

           

          3

           

          64

           

          Preferred Stock

           

          (8)

           

           

           

           

           

           

           

           

          Warrants

           

          (8)

           

           

           

           

           

           

           

          PCI Holding Company, Inc.

           

          12.00% Current Secured Debt

           

          (9)

           

           

           

          1,851

           

          11,356

           

           

          11,356

           

           

          Preferred Stock

           

          (9)

           

           

          1,450

           

           

          2,680

           

          1,450

           

           

          4,130

           

          Preferred Stock

           

          (9)

           

          2,610

           

          (2,610)

           

           

          4,350

           

           

          4,350

           

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           

          12.00% Secured Debt

           

          (8)

           

          (413)

           

           

           

           

          413

           

          413

           

           

          Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

          Salado Stone Holdings, LLC

           

          Class A Preferred Units

           

          (8)

           

           

          680

           

           

          570

           

          680

           

           

          1,250

          SI East, LLC

           

          9.50% Current, Secured Debt

           

          (7)

           

           

          (74)

           

          3,285

           

          32,963

           

          73

           

          74

           

          32,962

           

          Preferred Member Units

           

          (7)

           

           

          1,580

           

          1,292

           

          8,200

           

          1,580

           

           

          9,780

          Slick Innovations, LLC

           

          13.00% Current, Secured Debt

           

          (6)

           

           

          115

           

          919

           

          6,197

           

          163

           

          641

           

          5,719

           

          Warrants

           

          (6)

           

           

          70

           

           

          290

           

          70

           

           

          360

           

          Common Stock

           

          (6)

           

           

          250

           

           

          1,080

           

          250

           

           

          1,330

          Superior Rigging & Erecting Co.

           

          12.00% Current, Secured Debt

           

          (7)

           

           

           

          1,110

           

           

          21,298

           

           

          21,298

           

          Preferred Member Units

           

          (7)

           

           

           

           

           

          4,500

           

           

          4,500

          UniTek Global Services, Inc.

           

          LIBOR Plus 6.50% (Floor 1.00%)

           

          (6)

           

           

          (283)

           

          233

           

          2,962

           

          17

           

          553

           

          2,426

           

          Preferred Stock

           

          (6)

           

           

          (2,684)

           

           

          2,684

           

           

          2,684

           

           

          Preferred Stock

           

          (6)

           

           

          (2,119)

           

          212

           

          2,282

           

          212

           

          2,119

           

          375

           

          Preferred Stock

           

          (6)

           

           

          312

           

          255

           

          1,889

           

          945

           

          2

           

          2,832

           

          Preferred Stock

           

          (6)

           

           

          (3,667)

           

           

          3,667

           

           

          3,667

           

           

          Common Stock

           

          (6)

           

           

           

           

           

           

           

          Universal Wellhead Services Holdings, LLC

           

          Preferred Member Units

           

          (8)

           

           

          (800)

           

           

          800

           

           

          800

           

           

          Member Units

           

          (8)

           

           

           

           

           

           

           

          Volusion, LLC

           

          11.50% Secured Debt

           

          (8)

           

           

          (181)

           

          2,438

           

          19,352

           

          71

           

          181

           

          19,242

           

          8.00% Unsecured Convertible Debt

           

          (8)

           

           

           

          33

           

          291

           

           

           

          291

           

          Preferred Member Units

           

          (8)

           

           

          (8,010)

           

           

          14,000

           

           

          8,010

           

          5,990

           

          Warrants

           

          (8)

           

           

          (150)

           

           

          150

           

           

          150

           

          Other

           

           

           

           

           

           

           

           

           

          Amounts related to investments transferred to or from other
          1940 Act classification during the period

           

           

           

          11,210

           

          (4,906)

           

          118

           

          (9,335)

           

           

           

          Total Affiliate investments

           

           

           

          2,203

           

          (29,038)

           

          32,435

           

          330,287

           

          159,571

           

          132,892

           

          366,301


          (1)The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.
          (2)Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts from investments transferred from other 1940 Act classifications during the period.”
          (3)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.
          (4)Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net

          172


          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2017
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2018
          Fair Value
           

          Affiliate Investments

                                    

                                    

          AFG Capital Group, LLC

           Warrants (8) $ $90 $ $860 $90 $ $950 

           Preferred Member Units (8)    390  40  3,590  390    3,980 

          Barfly Ventures, LLC

           12% Secured Debt (5)    (164) 1,177  8,715  1,467  164  10,018 

           Options (5)    (190) 210  920  210  190  940 

           Warrants (5)    (110)   520    110  410 

          BBB Tank Services, LLC

           LIBOR Plus 10% (Floor 1.00%) (8)      83  778  434  1,212   

           LIBOR Plus 11% (Floor 1.00%) (8)      693  3,876    43  3,833 

           Preferred Member Units (8)          113    113 

           Member Units (8)    (270)   500    270  230 

          Boccella Precast Products LLC

           LIBOR Plus 10% (Floor 1.00%) (6)    43  1,964  16,400  2,164  2,840  15,724 

           Member Units (6)    1,640  635  3,440  1,640    5,080 

          Boss Industries, LLC

           Preferred Member Units (5)    2,080  849  3,930  2,246    6,176 

          Bridge Capital Solutions

           13% Secured Debt (6)      1,351  5,884  337    6,221 

          Corporation

           Warrants (6)    500    3,520  500    4,020 

           13% Secured Debt (6)    (2) 134  1,000  2  2  1,000 

           Preferred Member Units (6)      108  1,000      1,000 

          Buca C, LLC

           LIBOR Plus 9.25% (Floor 1.00%) (7)      2,286  20,193  45  1,200  19,038 

           Preferred Member Units (7)    5  254  4,172  259    4,431 

          CAI Software LLC

           12% Secured Debt (6)    94  726  4,083  7,797  1,000  10,880 

           Member Units (6)    (610) 20  3,230  97  610  2,717 

          Chandler Signs Holdings, LLC

           12% Secured Debt/1.00% PIK (8)    (8) 604  4,500  54  8  4,546 

           Class A Units (8)    (530) 60  2,650    530  2,120 

          Charlotte Russe, Inc

           8.50% Secured Debt (9)    4,663  630  7,807  16,659  20,536  3,930 

           Common Stock (9)    (3,141)     3,141  3,141   

          Condit Exhibits, LLC

           Member Units (9)      123  1,950      1,950 

          Congruent Credit

           LP Interests (Fund II) (8)    (140)   1,515    660  855 

          Opportunities Funds

           LP Interests (Fund III) (8)    (254) 2,017  18,632  4,014  5,178  17,468 

          Dos Rios Partners

           LP Interests (Dos Rios Partners, LP) (8)    138    7,165  138  150  7,153 

           LP Interests (Dos Rios Partners — A, LP) (8)    430    1,889  430  48  2,271 

          East Teak Fine Hardwoods, Inc.

           Common Stock (7)    (70) 35  630    70  560 

          EIG Fund Investments

           LP Interests (EIG Global Private Debt fund-A, L.P.) (8)      64  1,055  479  1,029  505 

          Freeport Financial Funds

           LP Interests (Freeport Financial SBIC Fund LP) (5)    (215) 102  5,614    215  5,399 

           LP Interests (Freeport First Lien Loan Fund III LP) (5)    (123) 902  8,506  2,597  123  10,980 

          Gault Financial, LLC

           8% Secured Debt (7)  (33) 950  815  11,532  950  12,482   

          (RMB Capital, LLC)

           Warrants (7)  (400) 400      400  400   

          Harris Preston Fund Investments

           LP Interests (HPEP 3, L.P.) (8)        943  790    1,733 

          Hawk Ridge Systems, LLC

           10.5% Secured Debt (9)    (26) 1,561  14,300  26  26  14,300 

           Preferred Member Units (9)    3,460  352  3,800  3,460    7,260 

           Preferred Member Units (9)    180    200  180    380 

          Houston Plating and

           8% Unsecured Convertible Debt (8)    520  243  3,200  520    3,720 

          Coatings, LLC

           Member Units (8)    2,133  289  6,140  2,190    8,330 

          I-45 SLF LLC

           Member Units (8)    (1,214) 2,945  16,841    1,214  15,627 

          L.F. Manufacturing Holdings, LLC

           Member Units (8)    60    2,000  60    2,060 

          Meisler Operating LLC

           LIBOR Plus 8.50% (Floor 1.00%) (5)      2,228  16,633  3,999  320  20,312 

           Member Units (5)    735    3,390  2,390    5,780 

          OnAsset Intelligence, Inc.

           12% PIK Secured Debt (8)      649  5,094  649    5,743 

           10% PIK Secured Debt (8)      5  48  5    53 

           Preferred Stock (8)               

           Warrants (8)               

          OPI International Ltd.

           Common Stock (8)  (1,371) 1,371      1,371  1,371   

          PCI Holding Company, Inc.

           12% Current/3% PIK Secured Debt (9)      2,105  12,593  615  1,300  11,908 

           Preferred Stock (9)    (550)   890    550  340 

           Preferred Stock (9)    870    2,610  870    3,480 

          Rocaceia, LLC (Quality Lease

           12% Secured Debt (8)        250      250 

          and Rental Holdings, LLC)

           Preferred Member Units (8)               

          Salado Stone Holdings, LLC

           Class A Preferred Units (8)    (750) 23  1,790    750  1,040 

          SI East, LLC

           10.25% Current, Secured Debt (7)      1,471    36,501  1,616  34,885 

           Preferred Member Units (7)          6,000    6,000 

          Slick Innovations, LLC

           14.00% Current, Secured Debt (6)      463    6,959    6,959 

           Warrants (6)          181    181 

           Member Units (6)          700    700 

          Tin Roof Acquisition Company

           12% Secured Debt (7)      841  12,722  561  13,283   

           Class��C Preferred Stock (7)      152  3,027  152  3,179   

          Table of Contents

          unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.
          (5)Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $256,121. This represented 16.9% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $31,595. This represented 2.1% of net assets as of December 31, 2020.
          (6)Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $82,476. This represented 5.4% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $108,056. This represented 7.1% of net assets as of December 31, 2020.
          (7)Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $44,614. This represented 2.9% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $98,369. This represented 6.5% of net assets as of December 31, 2020.
          (8)Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $442,075. This represented 29.2% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $95,519. This represented 6.3% of net assets as of December 31, 2020.
          (9)Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $288,439. This represented 19.0% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $32,762. This represented 2.2% of net assets as of December 31, 2020.
          (10)All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted.
          (11)This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.
          (12)Investment has an unfunded commitment as of December 31, 2020 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

          173


          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2017
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2018
          Fair Value
           

          UniTek Global Services, Inc.

           LIBOR Plus 5.50% (Floor 1.00%) (6)    (6) 127    2,975  6  2,969 

           LIBOR Plus 8.50% (Floor 1.00%) (6)      819  8,535  6  8,541   

           LIBOR Plus 7.50% (Floor 1.00%)/1.00% PIK (6)      7  137    137   

           15% PIK Unsecured Debt (6)      122  865  87  952   

           Preferred Stock (6)    41  1,038  7,320  1,080  987  7,413 

           Preferred Stock (6)      121    1,852  215  1,637 

           Preferred Stock (6)    8  580  2,850  587  399  3,038 

           Common Stock (6)  399  (1,069)   2,490    1,070  1,420 

          Universal Wellhead Services

           Preferred Member Units (8)      120  830  120    950 

          Holdings, LLC

           Member Units (8)    420    1,910  420    2,330 

          Valley Healthcare Group, LLC

           LIBOR Plus 10.50% (Floor 0.50%) (8)      1,400  11,685  81  11,766   

           Preferred Member Units (8)  1,898    58  1,600    1,600   

          Volusion, LLC

           11.5% Secured Debt (8)      2,818  15,200  3,207    18,407 

           8% Unsecured Convertible Debt (8)      15    297    297 

           Preferred Member Units (8)      1  14,000      14,000 

           Warrants (8)    (190)   2,080    190  1,890 

          Other

                                    

          Amounts related to investments transferred to or from other 1940 Act classification during the period

                (473) 473  365  2,825       

          Total Affiliate investments

               $20 $12,062 $36,800 $338,854 $125,544 $101,683 $359,890 

          (1)
          The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.

          (2)
          Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period."

          (3)
          Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.

          (4)
          Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.

          (5)
          Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $257,870. This represented 17.5% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $60,015. This represented 4.1% of net assets as of December 31, 2018.

          (6)
          Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $21,596. This represented 1.5% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $70,959. This represented 4.8% of net assets as of December 31, 2018.

          (7)
          Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $15,760. This represented 1.1% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $64,914. This represented 4.4% of net assets as of December 31, 2018.

          (8)
          Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $401,355. This represented 27.2% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $120,454. This represented 8.2% of net assets as of December 31, 2018.

          (9)
          Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $308,412. This represented 20.9% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $43,548. This represented 3.0% of net assets as of December 31, 2018.

          (10)
          All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities," unless otherwise noted.

          (11)
          This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.

          (12)
          Investment has an unfunded commitment as of December 31, 2018 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

          Table of Contents

          Schedule 12-14

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments inIn and Advances to Affiliates

          December 31, 2017
          2019

          (dollars in thousands)

              

              

              

              

              

          Amount of

              

              

              

              

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2018

          Gross

          Gross

          2019

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2016
          Fair Value
           Gross
          Additions(3)
           Gross Reductions(4) December 31,
          2017
          Fair Value
           

          Investment(1)(10)(11)

          Geography

          Gain/(Loss)

          Gain/(Loss)

          Income(2)

          Fair Value

          Additions(3)

          Reductions(4)

          Fair Value

          Majority-owned investments

                            

            

          Majorityowned investments

           

            

           

            

           

            

           

            

           

            

           

            

           

            

           

            

           

            

          Café Brazil, LLC

           Member Units (8) $ $(1,140)$179 $6,040 $ $1,140 $4,900 

           

          Member Units

           

          (8)

          $

          $

          (2,340)

          $

          233

          $

          4,780

          $

          $

          2,340

          $

          2,440

          California Splendor Holdings LLC

           

          LIBOR Plus 8.00% (Floor 1.00%)

           

          (9)

           

           

           

          1,175

           

          10,928

           

          17,176

           

          21,000

           

          7,104

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (9)

           

           

           

          3,595

           

          27,755

           

          46

           

           

          27,801

           

          Preferred Member Units

           

          (9)

           

           

           

          438

           

           

          7,438

           

          275

           

          7,163

           

          Preferred Member Units

           

          (9)

           

           

          (2,363)

           

          250

           

          9,745

           

           

          2,363

           

          7,382

          Clad-Rex Steel, LLC

           LIBOR Plus 9.50% (Floor 1.00) (5)  112 1,542 14,337 143 1,200 13,280 

           

          LIBOR Plus 9.00% (Floor 1.00%)

           

          (5)

           

           

          (128)

           

          1,367

           

          12,080

           

          29

           

          1,328

           

          10,781

           Member Units (5)  2,220 520 7,280 2,220  9,500 

           10% Secured Debt (5)  12 119 1,190 12 19 1,183 

           Member Units (5)  70  210 70  280 

           

          Member Units

           

          (5)

           

           

          (980)

           

          269

           

          10,610

           

           

          980

           

          9,630

           

          10% Secured Debt

           

          (5)

           

           

           

          115

           

          1,161

           

           

          24

           

          1,137

           

          Member Units

           

          (5)

           

           

          110

           

           

          350

           

          110

           

           

          460

          CMS Minerals Investments

           Preferred Member Units (8) 1,405 (1,578) 96 3,682  3,682  

           

          Member Units

           

          (9)

           

           

          (359)

           

          41

           

          2,580

           

           

          680

           

          1,900

           Member Units (8)  (600) 212 3,381  989 2,392 

          CompareNetworks Topco, LLC

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (9)

           

           

           

          1,270

           

           

          8,924

           

          636

           

          8,288

           

          Preferred Member Units

           

          (9)

           

           

          1,035

           

          2

           

           

          3,010

           

           

          3,010

          Gamber-Johnson

           LIBOR Plus 11.00% (Floor 1.00%) (5)  187 2,988 23,846 235 681 23,400 

          Holdings, LLC

           Member Units (5)  4,450 592 18,920 4,450  23,370 

          Direct Marketing Solutions, Inc.

           

          LIBOR Plus 11.00% (Floor 1.00%)

           

          (9)

           

           

          110

           

          2,391

           

          17,848

           

          159

           

          2,300

           

          15,707

           

          Preferred Stock

           

          (9)

           

           

          5,300

           

           

          14,900

           

          5,300

           

           

          20,200

          Gamber-Johnson Holdings, LLC

           

          LIBOR Plus 6.50% (Floor 2.00%)

           

          (5)

           

           

          (57)

           

          1,980

           

          21,486

           

          57

           

          2,521

           

          19,022

           

          Member Units

           

          (5)

           

           

          7,950

           

          3,721

           

          45,460

           

          7,950

           

           

          53,410

          GRT Rubber Technologies LLC

           LIBOR Plus 9.00% (Floor 1.00%) (8)  (34) 1,314 13,274 34 1,705 11,603 

           

          LIBOR Plus 7.00%

           

          (8)

           

           

          (23)

           

          1,226

           

          9,740

           

          5,299

           

          23

           

          15,016

           Member Units (8)  1,660 746 20,310 1,660  21,970 

           

          Member Units

           

          (8)

           

           

          8,390

           

          11,152

           

          39,060

           

          8,390

           

           

          47,450

          Guerdon Modular Holdings, Inc.

           

          16% Secured Debt

           

          (9)

           

           

          (12,018)

           

          424

           

          12,002

           

          16

           

          12,018

           

           

          LIBOR Plus 8.50% (Floor 1.00%)

           

          (9)

           

           

          (1,010)

           

          9

           

           

          1,010

           

          1,010

           

           

          Preferred Stock

           

          (9)

           

           

           

           

           

           

           

           

          Common Stock

           

          (9)

           

          (134)

           

           

           

           

          134

           

          134

           

           

          Warrants

           

          (9)

           

           

           

           

           

           

           

          Harborside Holdings, LLC

           Member Units (8)  3,194   9,400  9,400 

           

          Member Units

           

          (8)

           

           

          (140)

           

           

          9,500

           

          200

           

          140

           

          9,560

          Harris Preston Fund Investments

           LP Interests (2717 MH, L.P.) (8)     536  536 

          Hydratec, Inc.

           Common Stock (9)  (640) 1,631 15,640  640 15,000 

          IDX Broker, LLC

           11.5% Secured Debt (9)  88 1,316 10,950 5,500 1,200 15,250 

           

          11.5% Secured Debt

           

          (9)

           

           

          (46)

           

          1,669

           

          14,350

           

          46

           

          996

           

          13,400

           Preferred Member Units (9)  4,274 136 7,040 4,620  11,660 

           

          Preferred Member Units

           

          (9)

           

           

          1,520

           

          345

           

          13,520

           

          1,520

           

           

          15,040

          Jensen Jewelers of Idaho, LLC

           Prime Plus 6.75% (Floor 2.00%) (9)  (20) 451 4,055 520 620 3,955 

           

          Prime Plus 6.75% (Floor 2.00%)

           

          (9)

           

           

          22

           

          406

           

          3,355

           

          4,001

           

          3,356

           

          4,000

           Member Units (9)  640 207 4,460 640  5,100 

           

          Member Units

           

          (9)

           

           

          3,180

           

          953

           

          5,090

           

          3,180

           

           

          8,270

          Kickhaefer Manufacturing Company, LLC

           

          11.5% Secured Debt

           

          (5)

           

           

           

          3,265

           

          28,775

           

          71

           

          3,864

           

          24,982

           

          Member Units

           

          (5)

           

           

           

           

          12,240

           

           

           

          12,240

           

          9.0% Secured Debt

           

          (5)

           

           

           

          357

           

          3,970

           

           

          31

           

          3,939

           

          Member Units

           

          (5)

           

           

          168

           

          108

           

          992

           

          168

           

           

          1,160

          Lamb Ventures, LLC

           11% Secured Debt (8)  52 994 7,657 2,850 565 9,942 

           

          LIBOR Plus 5.75%

           

          (8)

           

          ���

           

          (2)

           

          10

           

           

          402

           

          402

           

           Preferred Equity (8)    400   400 

           Member Units (8)  800 40 5,990 800  6,790 

           9.5% Secured Debt (8)  4 65 1,170 432 1,170 432 

           Member Units (8)  (820) 845 1,340  820 520 

           

          11% Secured Debt

           

          (8)

           

           

          (32)

           

          608

           

          8,339

           

          3,532

           

          11,871

           

          Lighting Unlimited, LLC

           8% Secured Debt (8)   29 1,514  1,514  

           Preferred Equity (8) (434) 24  410 24 434  

           Warrants (8) (54) 54   54 54  

           Member Units (8) (100) 100   100 100  

           

          Preferred Equity

           

          (8)

           

           

           

           

          400

           

           

          400

           

           

          Member Units

           

          (8)

           

          6,006

           

          (2,167)

           

          394

           

          7,440

           

           

          7,440

           

           

          9.5% Secured Debt

           

          (8)

           

           

          (4)

           

          24

           

          432

           

          4

           

          436

           

           

          Member Units

           

          (8)

           

          (139)

           

          (5)

           

          74

           

          630

           

           

          630

           

          Market Force Information, LLC

           

          8% Secured Debt

           

          (9)

           

           

          (92)

           

          132

           

          200

           

          2,787

           

          292

           

          2,695

           

          6% Current / 6% PIK Secured Debt

           

          (9)

           

           

          (536)

           

          3,103

           

          22,624

           

          533

           

          536

           

          22,621

           

          Member Units

           

          (9)

           

           

          (9,762)

           

           

          13,100

           

          1,942

           

          9,762

           

          5,280

          MH Corbin Holding LLC

           

          5% Current / 5% PIK Secured Debt

           

          (5)

           

           

          462

           

          1,446

           

          11,733

           

          1,557

           

          4,400

           

          8,890

           

          Preferred Member Units

           

          (5)

           

           

          (980)

           

           

          1,000

           

           

          980

           

          20

           

          Preferred Member Units

           

          (5)

           

           

          370

           

           

           

          4,770

           

           

          4,770

          Mid-Columbia Lumber Products, LLC

           10% Secured Debt (9)   176 1,750 593 953 1,390 

           

          10% Secured Debt

           

          (9)

           

           

          (148)

           

          181

           

          1,746

           

          4

           

          148

           

          1,602

           12% Secured Debt (9)   477 3,900  37 3,863 

           Member Units (9)  (1,500) 6 2,480 595 1,500 1,575 

           9.5% Secured Debt (9)   78 836  45 791 

           Member Units (9)  150 72 600 690  1,290 

           

          12% Secured Debt

           

          (9)

           

           

          (255)

           

          493

           

          3,880

           

          19

           

          255

           

          3,644

           

          Member Units

           

          (9)

           

           

          (4,098)

           

          6

           

          3,860

           

          238

           

          4,098

           

           

          9.5% Secured Debt

           

          (9)

           

           

           

          69

           

          746

           

           

          45

           

          701

           

          Member Units

           

          (9)

           

           

          170

           

          73

           

          1,470

           

          170

           

           

          1,640

          MSC Adviser I, LLC

           Member Units (8)  11,151 3,032 30,617 11,151  41,768 

           

          Member Units

           

          (8)

           

           

          8,772

           

          4,988

           

          65,748

           

          8,772

           

           

          74,520

          Mystic Logistics Holdings, LLC

           12% Secured Debt (6)  (124) 1,073 9,176 52 1,532 7,696 

           

          12% Secured Debt

           

          (6)

           

           

           

          875

           

          7,506

           

          29

           

          1,282

           

          6,253

           Common Stock (6)  1,040  5,780 1,040  6,820 

          NRP Jones, LLC

           12% Secured Debt (5)   4,117 13,915 7,821 15,360 6,376 

           Warrants (5)  687  130 687 817  

           Member Units (5)  2,023 18 410 2,840  3,250 

           

          Common Stock

           

          (6)

           

           

          8,200

           

          219

           

          210

           

          8,200

           

           

          8,410

          PPL RVs, Inc.

           LIBOR Plus 7.00% (Floor 0.50%) (8)  128 1,473 17,826 174 1,900 16,100 

           

          LIBOR Plus 8.75% (Floor 0.50%)

           

          (8)

           

           

          (94)

           

          1,463

           

          15,100

           

          41

           

          3,023

           

          12,118

           Common Stock (8)  660 80 11,780 660  12,440 

           

          Common Stock

           

          (8)

           

           

          (450)

           

           

          10,380

           

           

          450

           

          9,930

          Principle Environmental, LLC

           13% Secured Debt (8)  131 998 7,438 39  7,477 

          (d/b.a TruHorizon

           Preferred Member Units (8) (63) 6,183  5,370 6,183 63 11,490 

          Environmental Solutions)

           Warrants (8)  380  270 380  650 

          Quality Lease Service, LLC

           Zero Coupon Secured Debt (7)  (391) 273 7,068 273 391 6,950 

           Member Units (7)    3,188 1,750  4,938 

          The MPI Group, LLC

           9% Secured Debt (7)  (513) 268 2,922 1 513 2,410 

           Series A Preferred Units (7)        

           Warrants (7)        

           Member Units (7)  90 92 2,300 89  2,389 

          Uvalco Supply, LLC

           9% Secured Debt (8)   54 872  524 348 

           Member Units (8) 69 (496) 235 4,640  760 3,880 

          Vision Interests, Inc.

           13% Secured Debt (9)   382 2,814  17 2,797 

           Series A Preferred Stock (9)    3,000   3,000 

           Common Stock (9)        

          Ziegler's NYPD, LLC

           6.5% Secured Debt (8)   68 994 2  996 

           12% Secured Debt (8)   37 300   300 

           14% Secured Debt (8)   390 2,750   2,750 

           Warrants (8)  (240)  240  240  

           Preferred Member Units (8)  (880)  4,100  880 3,220 

            

          174


          Table of Contents

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fees or
          Dividends
          Credited to
          Income(2)
           December 31,
          2016
          Fair Value
           Gross
          Additions(3)
           Gross Reductions(4) December 31,
          2017
          Fair Value
           

          Other controlled investments

                            

            

          Access Media Holdings, LLC

           5% Current/5% PIK Secured Debt (5)  (3,714) 2,379 19,700 1,164 3,714 17,150 

           Preferred Member Units (5)  (1,908)  240 1,668 1,908  

           Member Units (5)        

          Ameritech College Operations, LLC

           13% Secured Debt (9)   96 1,003  1,003  

           13% Secured Debt (9)   285 3,025  3,025  

           Preferred Member Units (9) (3,321)  198 2,291 3,900 6,191  

          ASC Interests, LLC

           11% Secured Debt (8)  (16) 232 2,100 11 316 1,795 

           Member Units (8)  (1,150) (12) 2,680  1,150 1,530 

          ATS Workholding, LLC

           5% Secured Debt (9)   36  3,249  3,249 

           Preferred Member Units (9)     3,726  3,726 

          Bond-Coat, Inc.

           12% Secured Debt (8)  (40) 1,450 11,596 40 40 11,596 

           Common Stock (8)  2,710  6,660 2,710  9,370 

          CBT Nuggets, LLC

           Member Units (9)  34,080 9,439 55,480 34,080  89,560 

          Charps, LLC

           12% Secured Debt (5)   2,371  19,025 800 18,225 

           Preferred Member Units (5)  250   650  650 

          Copper Trail Energy Fund I, LP

           LP Interests (9)     2,500  2,500 

          Datacom, LLC

           8% Secured Debt (8)   101 900 945 270 1,575 

           5.25% Current / 5.25% PIK Secured Debt (8)  (599) 1,296 11,049 660 599 11,110 

           Class A Preferred Member Units (8)  (638)  1,368  638 730 

           Class B Preferred Member Units (8)  (1,529)  1,529  1,529  

          Garreco, LLC

           LIBOR Plus 10.00% (Floor 1.00%) (8)   702 5,219 991 767 5,443 

           Member Units (8)  790  1,150 790  1,940 

          Gulf Manufacturing, LLC

           9% PIK Secured Debt (8)   51 777  777  

           Member Units (8)  1,290 437 8,770 1,290  10,060 

          Gulf Publishing Holdings, LLC

           LIBOR Plus 9.50% (Floor 1.00%) (8)   5  80  80 

           12.5% Secured Debt (8)   1,557 9,911 2,792  12,703 

           Member Units (8)  1,159 40 3,124 1,716  4,840 

          Harrison Hydra-Gen, Ltd.

           Common Stock (8)  460  3,120 460  3,580 

          Hawthorne Customs and

           Member Units (8) (159) 309  280 309 589  

          Dispatch Services, LLC

           Member Units (8) 632 (825) 127 2,040  2,040  

          HW Temps LLC

           LIBOR Plus 11.00% (Floor 1.00%) (6)   1,430 10,500 18 600 9,918 

           Preferred Member Units (6)   140 3,940   3,940 

          Indianapolis Aviation Partners, LLC

           15% Secured Debt (8)   292 3,100  3,100  

           Warrants (8) 2,384 (1,520)  2,649  2,649  

          KBK Industries, LLC

           10% Secured Debt (5)  3 100 1,250 100 975 375 

           12.5% Secured Debt (5)  33 788 5,889 11  5,900 

           Member Units (5)  1,197 183 2,780 1,640  4,420 

          Marine Shelters Holdings, LLC

           12% PIK Secured Debt (8)  (2,551)  9,387  9,387  

           Preferred Member Units (8) (100)    100 100  

          Market Force Information, LLC

           LIBOR Plus 11.00% (Floor 1.00%) (9)   1,541  23,815 672 23,143 

           Member Units (9)     14,700  14,700 

          MH Corbin Holding LLC

           13% Secured Debt (5)   2,030 13,197 29 700 12,526 

           Preferred Member Units (5)   140 6,000   6,000 

          NAPCO Precast, LLC

           LIBOR Plus 8.50% (8)  36 917  11,475  11,475 

           Prime Plus 2.00% (Floor 7.00%) (8)  (20) 122 2,713 20 2,733  

           18% Secured Debt (8)  (30) 327 3,952 30 3,982  

           Member Units (8)  750 393 10,920 750  11,670 

          NRI Clinical Research, LLC

           LIBOR Plus 6.50% (Floor 1.50%) (9)   36 200 200  400 

           14% Secured Debt (9)  (33) 650 4,261 33 429 3,865 

           Warrants (9)  (180)  680  180 500 

           Member Units (9)  40  2,462 360 322 2,500 

          NuStep, LLC

           12% Secured Debt (5)   2,646  20,420  20,420 

           Preferred Member Units (5)     10,200  10,200 

          OMi Holdings, Inc.

           Common Stock (8)  1,030 1,081 13,080 1,030  14,110 

          Pegasus Research Group, LLC

           Member Units (8)  1,690 157 8,620 1,690  10,310 

          River Aggregates, LLC

           Zero Coupon Secured Debt (8)   80 627 80  707 

           Member Units (8)  10  4,600 10  4,610 

           Member Units (8)  50  2,510 49  2,559 

          SoftTouch Medical Holdings LLC

           LIBOR Plus 9.00% (Floor 1.00%) (7)  (15) 748 7,140 15 15 7,140 

           Member Units (7)  920 969 9,170 919  10,089 

          Other

                            

          Amounts related to investments transferred to or from other 1940 Act classification during the period

                (219) (9,919)    

          Total Control investments

              $259 $63,627 $62,762 $594,282 $239,770 $93,265 $750,706 

              

              

              

              

              

          Amount of

              

              

              

              

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2018

          Gross

          Gross

          2019

          Company

          Investment(1)(10)(11)

          Geography

          Gain/(Loss)

          Gain/(Loss)

          Income(2)

          Fair Value

          Additions(3)

          Reductions(4)

          Fair Value

          Principle Environmental, LLC
          (d/b.a TruHorizon
          Environmental Solutions)

           

          13% Secured Debt

           

          (8)

           

           

          (61)

           

          935

           

          7,477

           

          61

           

          1,141

           

          6,397

           

          Preferred Member Units

           

          (8)

           

           

          300

           

          2,317

           

          13,090

           

          300

           

           

          13,390

           

          Warrants

           

          (8)

           

           

          310

           

           

          780

           

          310

           

           

          1,090

          Quality Lease Service, LLC

           

          Zero Coupon Secured Debt

           

          (7)

           

          (741)

           

          891

           

           

          6,450

           

          891

           

          7,341

           

           

          Member Units

           

          (7)

           

           

          (1,490)

           

           

          3,809

           

          6,970

           

          1,490

           

          9,289

          The MPI Group, LLC

           

          9% Secured Debt

           

          (7)

           

           

          342

           

          267

           

          2,582

           

          342

           

           

          2,924

           

          Series A Preferred Units

           

          (7)

           

          (8)

           

          (440)

           

           

          440

           

          8

           

          448

           

           

          Warrants

           

          (7)

           

           

           

           

           

           

           

           

          Member Units

           

          (7)

           

           

          (839)

           

          137

           

          2,479

           

           

          839

           

          1,640

          Trantech Radiator Topco, LLC

           

          12% Secured Debt

           

          (7)

           

           

           

          981

           

           

          10,302

           

          1,200

           

          9,102

           

          Common Stock

           

          (7)

           

           

           

          68

           

           

          4,655

           

           

          4,655

          Vision Interests, Inc.

           

          13% Secured Debt

           

          (9)

           

           

           

          271

           

          2,153

           

           

          125

           

          2,028

           

          Series A Preferred Stock

           

          (9)

           

           

          349

           

           

          3,740

           

          349

           

           

          4,089

           

          Common Stock

           

          (9)

           

           

          129

           

           

          280

           

          129

           

           

          409

          Ziegler’s NYPD, LLC

           

          6.5% Secured Debt

           

          (8)

           

           

          (2)

           

          72

           

          1,000

           

          2

           

          2

           

          1,000

           

          12% Secured Debt

           

          (8)

           

           

           

          67

           

          425

           

          200

           

           

          625

           

          14% Secured Debt

           

          (8)

           

           

           

          402

           

          2,750

           

           

           

          2,750

           

          Warrants

           

          (8)

           

           

           

           

           

           

           

           

          Preferred Member Units

           

          (8)

           

           

          20

           

           

          1,249

           

          20

           

           

          1,269

          Other controlled investments

           

          Access Media Holdings, LLC

           

          10% PIK Secured Debt

           

          (5)

           

           

          (2,171)

           

          50

           

          8,558

           

           

          2,171

           

          6,387

           

          Preferred Member Units (12)

           

          (5)

           

           

           

           

          (284)

           

           

           

          (284)

           

          Member Units

           

          (5)

           

           

           

           

           

           

           

          Analytical Systems Keco, LLC

           

          LIBOR Plus 10.00% (Floor 2.00%)

           

          (8)

           

           

           

          448

           

           

          5,245

           

          35

           

          5,210

           

          Preferred Member Units

           

          (8)

           

           

           

           

           

          3,200

           

           

          3,200

           

          Warrants

           

          (8)

           

           

           

           

           

          316

           

           

          316

          ASC Interests, LLC

           

          11% Secured Debt

           

          (8)

           

           

           

          201

           

          1,622

           

          17

           

           

          1,639

           

          Member Units

           

          (8)

           

           

          (80)

           

           

          1,370

           

           

          80

           

          1,290

          ATS Workholding, LLC

           

          5% Secured Debt

           

          (9)

           

           

          (28)

           

          364

           

          4,390

           

          225

           

          94

           

          4,521

           

          Preferred Member Units

           

          (9)

           

           

          (2,787)

           

           

          3,726

           

           

          2,787

           

          939

          Bond-Coat, Inc.

           

          15% Secured Debt

           

          (8)

           

           

          (229)

           

          1,853

           

          11,596

           

          106

           

          229

           

          11,473

           

          Common Stock

           

          (8)

           

           

          (1,070)

           

           

          9,370

           

           

          1,070

           

          8,300

          Brewer Crane Holdings, LLC

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (9)

           

           

           

          1,167

           

          9,467

           

          18

           

          496

           

          8,989

           

          Preferred Member Units

           

          (9)

           

           

           

          120

           

          4,280

           

           

           

          4,280

          Bridge Capital Solutions Corporation

           

          13% Secured Debt

           

          (6)

           

           

           

          1,480

           

          6,221

           

          1,576

           

           

          7,797

           

          Warrants

           

          (6)

           

           

          (520)

           

           

          4,020

           

           

          520

           

          3,500

           

          13% Secured Debt

           

          (6)

           

           

          (6)

           

          101

           

          1,000

           

          2

           

          6

           

          996

           

          Preferred Member Units

           

          (6)

           

           

           

          75

           

          1,000

           

           

           

          1,000

          CBT Nuggets, LLC

           

          Member Units

           

          (9)

           

           

          (10,760)

           

          300

           

          61,610

           

           

          10,760

           

          50,850

          Centre Technologies Holdings, LLC

           

          LIBOR Plus 9.00% (Floor 2.00%)

           

          (8)

           

           

           

          1,572

           

           

          12,136

           

           

          12,136

           

          Preferred Member Units

           

          (8)

           

           

           

          120

           

           

          5,840

           

           

          5,840

          Chamberlin Holding LLC

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (8)

           

           

          125

           

          2,474

           

          20,028

           

          174

           

          2,429

           

          17,773

           

          Member Units

           

          (8)

           

           

          5,100

           

          1,659

           

          18,940

           

          5,100

           

           

          24,040

           

          Member Units

           

          (8)

           

           

          403

           

          45

           

          732

           

          718

           

           

          1,450

          Charps, LLC

           

          11.50% Secured Debt

           

          (5)

           

           

          (83)

           

          675

           

          11,888

           

          1,695

           

          13,583

           

           

          15% Secured Debt

           

          (5)

           

           

           

          175

           

           

          2,000

           

           

          2,000

           

          Preferred Member Units

           

          (5)

           

           

          4,650

           

          579

           

          2,270

           

          4,650

           

           

          6,920

          Copper Trail Fund Investments

           

          LP Interests (CTMH, LP)

           

          (9)

           

           

           

          5

           

          872

           

           

           

          872

          Datacom, LLC

           

          8.00% Secured Debt

           

          (8)

           

           

          (75)

           

           

          1,690

           

           

          75

           

          1,615

           

          10.50% PIK Secured Debt

           

          (8)

           

           

          361

           

           

          9,786

           

          361

           

          5

           

          10,142

           

          Class A Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

           

          Class B Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

          Digital Products Holdings LLC

           

          LIBOR Plus 10.00% (Floor 1.00%)

           

          (5)

           

           

          (1,025)

           

          2,944

           

          25,511

           

          87

           

          7,146

           

          18,452

           

          Preferred Member Units

           

          (5)

           

           

          (4,327)

           

          200

           

          8,466

           

          1,035

           

          4,327

           

          5,174

          Garreco, LLC

           

          LIBOR Plus 8.00% (Floor 1.00%, Ceiling 1.50%)

           

          (8)

           

           

           

          472

           

          5,099

           

          18

           

          602

           

          4,515

           

          Member Units

           

          (8)

           

           

          (30)

           

           

          2,590

           

           

          30

           

          2,560

          Gulf Manufacturing, LLC

           

          Member Units

           

          (8)

           

           

          (4,260)

           

          671

           

          11,690

           

           

          4,260

           

          7,430

          Gulf Publishing Holdings, LLC

           

          LIBOR Plus 9.50% (Floor 1.00%)

           

          (8)

           

           

           

          25

           

           

          320

           

          40

           

          280

           

          12.5% Secured Debt

           

          (8)

           

           

           

          1,619

           

          12,594

           

          28

           

          129

           

          12,493

           

          Member Units

           

          (8)

           

           

          (1,700)

           

           

          4,120

           

           

          1,700

           

          2,420

          Harris Preston Fund Investments

           

          LP Interests (2717 MH, L.P.)

           

          (8)

           

           

          329

           

           

          1,133

           

          2,524

           

          500

           

          3,157

          Harrison Hydra-Gen, Ltd.

           

          Common Stock

           

          (8)

           

           

          (100)

           

          247

           

          8,070

           

           

          100

           

          7,970

          KBK Industries, LLC

           

          Member Units

           

          (5)

           

           

          6,860

           

          1,923

           

          8,610

           

          6,860

           

           

          15,470

          J&J Services, Inc.

           

          11.50% Secured Debt

           

          (7)

           

           

           

          531

           

           

          17,430

           

           

          17,430

           

          Preferred Stock

           

          (7)

           

           

           

           

           

          7,160

           

           

          7,160

          NAPCO Precast, LLC

           

          LIBOR Plus 8.50%

           

          (8)

           

           

          (11)

           

          123

           

          11,475

           

          11

           

          11,486

           

           

          Member Units

           

          (8)

           

           

          770

           

          3,063

           

          13,990

           

          770

           

           

          14,760


          175


          Table of Contents

              

              

              

              

              

          Amount of

              

              

              

              

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2018

          Gross

          Gross

          2019

          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fee or
          Dividends
          Credited to
          Income(2)
           December 31,
          2016
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2017
          Fair Value
           

          Investment(1)(10)(11)

          Geography

          Gain/(Loss)

          Gain/(Loss)

          Income(2)

          Fair Value

          Additions(3)

          Reductions(4)

          Fair Value

          NexRev LLC

           

          11% Secured Debt

           

          (8)

           

           

           

          1,956

           

          17,288

           

          835

           

          654

           

          17,469

           

          Preferred Member Units

           

          (8)

           

           

          (1,580)

           

          195

           

          7,890

           

           

          1,580

           

          6,310

          NRI Clinical Research, LLC

           

          LIBOR Plus 6.50% (Floor 1.50%)

           

          (9)

           

           

           

          11

           

           

          200

           

          200

           

           

          14% Secured Debt

           

          (9)

           

           

          (44)

           

          971

           

          6,685

           

          44

           

          748

           

          5,981

           

          Warrants

           

          (9)

           

           

          570

           

           

          660

           

          570

           

           

          1,230

           

          Member Units

           

          (9)

           

           

          2,510

           

          32

           

          2,478

           

          2,510

           

           

          4,988

          NRP Jones, LLC

           

          12% Secured Debt

           

          (5)

           

           

           

          776

           

          6,376

           

           

           

          6,376

           

          Member Units

           

          (5)

           

           

          (1,250)

           

          323

           

          5,960

           

           

          1,250

           

          4,710

          NuStep, LLC

           

          12% Secured Debt

           

          (5)

           

           

           

          2,556

           

          20,458

           

          44

           

          799

           

          19,703

           

          Preferred Member Units

           

          (5)

           

           

           

           

          10,200

           

           

           

          10,200

          OMi Holdings, Inc.

           

          Common Stock

           

          (8)

           

           

          930

           

          1,920

           

          16,020

           

          930

           

           

          16,950

          Pegasus Research Group, LLC

           

          Member Units

           

          (8)

           

           

          490

           

           

          7,680

           

          490

           

           

          8,170

          River Aggregates, LLC

           

          Zero Coupon Secured Debt

           

          (8)

           

           

           

           

          722

           

           

           

          722

           

          Member Units

           

          (8)

           

           

          380

           

           

          4,610

           

          380

           

           

          4,990

           

          Member Units

           

          (8)

           

           

          239

           

           

          2,930

           

          239

           

           

          3,169

          Tedder Industries, LLC

           

          12%, Secured Debt

           

          (9)

           

           

           

          69

           

          480

           

          1,200

           

          1,040

           

          640

           

          12%, Secured Debt

           

          (9)

           

           

           

          2,021

           

          16,246

           

          26

           

           

          16,272

           

          Preferred Member Units

           

          (9)

           

           

           

           

          7,476

           

          660

           

           

          8,136

          Other

           

           

          Amounts related to investments transferred to or from other
          1940 Act classification during the period

           

           

           

          (187)

           

          260

           

          (133)

           

          5,809

           

           

           

          Total Control investments

           

           

           

          4,797

           

          (980)

           

          92,414

           

          1,004,993

           

          219,523

           

          185,986

           

          1,032,721

          Affiliate Investments

                            

           

            

          AFG Capital Group, LLC

           Warrants (8) $ $840 $ $670 $190 $ $860 

           

          Warrants

           

          (8)

           

          781

           

          (691)

           

           

          950

           

           

          950

           

           Member Units (8)  190 34 2,750 840  3,590 

           

          10% Secured Debt

           

          (8)

           

           

           

          66

           

           

          1,040

           

          202

           

          838

          Barfly Ventures, LLC

           12% Secured Debt (5)  176 1,005 5,827 2,888  8,715 

           Options (5)  430  490 430  920 

           Warrants (5)  240  280 240  520 

           

          Preferred Member Units

           

          (8)

           

           

          1,200

           

          (40)

           

          3,980

           

          1,200

           

           

          5,180

          American Trailer Rental Group LLC

           

          LIBOR Plus 7.25% (Floor 1.00%)

           

          (5)

           

           

          182

           

          2,655

           

          20,312

           

          8,729

           

          1,954

           

          27,087

           

          Member Units

           

          (5)

           

           

          2,760

           

           

          5,780

           

          2,760

           

           

          8,540

          BBB Tank Services, LLC

           LIBOR Plus 8.00% (Floor 1.00%) (8)   84 797 861 880 778 

           

          LIBOR Plus 11% (Floor 1.00%)

           

          (8)

           

           

           

          680

           

          3,833

           

          865

           

           

          4,698

           15% Secured Debt (8)   623 3,991  115 3,876 

           Member Units (8)  (300)  800  300 500 

           

          Preferred Member Units

           

          (8)

           

           

           

          18

           

          113

           

          18

           

           

          131

           

          Member Units

           

          (8)

           

           

          60

           

           

          230

           

          60

           

           

          290

          Boccella Precast Products LLC

           LIBOR Plus 10.0% (Floor 1.00%) (6)  170 1,203  16,400  16,400 

           

          LIBOR Plus 12% (Floor 1.00%)

           

          (6)

           

           

          (75)

           

          2,187

           

          15,724

           

          475

           

          2,955

           

          13,244

           Member Units (6)  1,280 37  3,440  3,440 

           

          Member Units

           

          (6)

           

           

          1,094

           

          236

           

          5,080

           

          1,190

           

           

          6,270

          Boss Industries, LLC

           Preferred Member Units (5)  1,476 193 2,800 1,667 537 3,930 

           

          Preferred Member Units

           

          (5)

           

          3,771

           

          (3,930)

           

          611

           

          6,176

           

           

          6,176

           

          Bridge Capital Solutions Corporation

           13% Secured Debt (6)   1,262 5,610 274  5,884 

           Warrants (6)  151  3,370 150  3,520 

           13% Secured Debt (6)  (2) 133 1,000 2 2 1,000 

           Preferred Member Units (6)   100 1,000   1,000 

          Buca C, LLC

           LIBOR Plus 7.25% (Floor 1.00%) (7)  (167) 1,891 22,671 56 2,534 20,193 

           

          LIBOR Plus 9.25% (Floor 1.00%)

           

          (7)

           

           

          (187)

           

          2,260

           

          19,038

           

          43

           

          287

           

          18,794

           Preferred Member Units (7)  (728) 240 4,660 240 728 4,172 

           

          Preferred Member Units

           

          (7)

           

           

           

          270

           

          4,431

           

          270

           

           

          4,701

          CAI Software LLC

           12% Secured Debt (6)   456 3,683 800 400 4,083 

           

          11% Secured Debt

           

          (6)

           

           

          (34)

           

          1,239

           

          10,880

           

          34

           

          1,754

           

          9,160

           Member Units (6)  750 87 2,480 750  3,230 

           

          Member Units

           

          (6)

           

           

          2,493

           

          31

           

          2,717

           

          2,493

           

           

          5,210

          Chandler Signs Holdings, LLC

           12% Secured Debt (8)  (7) 555 4,500 7 7 4,500 

           

          12% Secured Debt

           

          (8)

           

           

          (24)

           

          581

           

          4,546

           

          47

           

          4,593

           

           Class A Units (8)  (590) 13 3,240  590 2,650 

           

          Class A Units

           

          (8)

           

           

          620

           

          39

           

          2,120

           

          620

           

           

          2,740

          Charlotte Russe, Inc

           

          8.50% Secured Debt

           

          (9)

           

          (7,012)

           

          4,003

           

           

          3,930

           

          4,003

           

          7,933

           

           

          Common Stock

           

          (9)

           

           

           

           

           

           

           

          Condit Exhibits, LLC

           Member Units (9)  110 41 1,840 110  1,950 

           

          Member Units

           

          (9)

           

          1,850

           

          (1,850)

           

          132

           

          1,950

           

           

          1,950

           

          Congruent Credit Opportunities Funds

           

          LP Interests (Fund II)

           

          (8)

           

           

           

           

          855

           

           

           

          855

           

          LP Interests (Fund III)

           

          (8)

           

           

          (195)

           

          1,447

           

          17,468

           

           

          3,553

           

          13,915

          Congruent Credit Opportunities Funds

           LP Interests (Fund II) (8)  (3) 2 1,518  3 1,515 

           LP Interests (Fund III) (8)  336 1,555 16,181 2,451  18,632 

          Daseke, Inc.

           12% Current / 2.5% PIK Secured Debt (8)  (167) 676 21,799 255 22,054  

           Common Stock (8) 22,859 (18,849)  24,063  24,063  

          Copper Trail Fund Investments

           

          LP Interests (Copper Trail Energy Fund I, LP)

           

          (9)

           

          37

           

          (310)

           

          583

           

          4,170

           

           

          1,808

           

          2,362

          Dos Rios Partners

           LP Interests (Dos Rios Partners, LP) (8)  2,240  4,925 2,240  7,165 

           

          LP Interests (Dos Rios Partners, LP)

           

          (8)

           

           

          (122)

           

           

          7,153

           

           

          120

           

          7,033

           LP Interests (Dos Rios Partners—A, LP) (8)  445  1,444 445  1,889 

          Dos Rios Stone Products LLC

           Class A Units (8)  (280) 23 2,070  280 1,790 

           

          LP Interests (Dos Rios Partners - A, LP)

           

          (8)

           

           

          (38)

           

           

          2,271

           

           

          38

           

          2,233

          East Teak Fine Hardwoods, Inc.

           Common Stock (7)  (230) 66 860  230 630 

           

          Common Stock

           

          (7)

           

           

          (160)

           

          16

           

          560

           

           

          160

           

          400

          EIG Fund Investments

           

          LP Interests (EIG Global Private Debt fund-A, L.P.)

           

          (8)

           

          8

           

           

          137

           

          505

           

          283

           

          68

           

          720

          Freeport Financial Funds

           

          LP Interests (Freeport Financial SBIC Fund LP)

           

          (5)

           

           

          379

           

           

          5,399

           

          379

           

           

          5,778

           

          LP Interests (Freeport First Lien Loan Fund III LP)

           

          (5)

           

           

          (84)

           

          1,059

           

          10,980

           

          799

           

          2,083

           

          9,696

          East West Copolymer & Rubber, LLC

           12% Current/2% PIK Secured Debt (8) (3,626) 961  8,630 961 9,591  

           Warrants (8) (50) 50   50 50  

          EIG Fund Investments

           LP Interests (EIG Global Private Debt fund-A, L.P.) (8) 71 (48) 90 2,804 1,160 2,909 1,055 

           LP Interests (EIG Traverse Co-Investment, L.P.) (8)  (100) 1,534 9,905  9,905  

          Freeport Financial Fund Investments

           LP Interests (Freeport Financial SBIC Fund LP) (5)  (6) 408 5,620  6 5,614 

           LP Interests (Freeport First Lien Loan Fund III LP) (5)  (52) 688 4,763 3,795 52 8,506 

          Gault Financial, LLC

           10.5% Current Secured Debt (7)  1,016 1,302 11,079 1,016 563 11,532 

          (RMB Capital, LLC)

           Warrants (7)        

          Glowpoint, Inc.

           12% Secured Debt (6) (6,450) 4,951 685 3,997 5,003 9,000  

           Common Stock (6) (3,974) 1,878  2,080 1,878 3,958  

          Guerdon Modular Holdings, Inc.

           13% Secured Debt (9)   1,450 10,594 38  10,632 

           Preferred Stock (9)  (1,140)  1,140  1,140  

           Common Stock (9)  (80)  80  80  

          Fuse, LLC

           

          12% Secured Debt

           

          (9)

           

           

           

          119

           

           

          1,939

           

           

          1,939

           

          Common Stock

           

          (9)

           

           

           

           

           

          256

           

           

          256

          Harris Preston Fund Investments

           LP Interests (HPEP 3, L.P.) (8)     1,343 400 943 

           

          LP Interests (HPEP 3, L.P.)

           

          (8)

           

           

           

           

          1,733

           

          741

           

           

          2,474

          Hawk Ridge Systems, LLC

           

          LIBOR Plus 6.00% (Floor 1.00%)

           

          (9)

           

           

           

          26

           

           

          600

           

           

          600

           

          11.0% Secured Debt

           

          (9)

           

           

          (34)

           

          1,460

           

          14,300

           

          34

           

          934

           

          13,400

          Hawk Ridge Systems, LLC

           11% Secured Debt (9)  125 1,229 9,901 4,899 500 14,300 

           Preferred Member Units (9)  950 320 2,850 950  3,800 

           Preferred Member Units (9)  50 6 150 50  200 

           

          Preferred Member Units

           

          (9)

           

           

          640

           

          375

           

          7,260

           

          640

           

           

          7,900

           

          Preferred Member Units

           

          (9)

           

           

          40

           

           

          380

           

          40

           

           

          420

          Houston Plating and Coatings, LLC

           8% Unsecured Convertible Debt (8)  200 165  3,200  3,200 

           

          8% Unsecured Convertible Debt

           

          (8)

           

           

          540

           

          243

           

          3,720

           

          540

           

           

          4,260

           Member Units (8)  1,390 5 4,000 2,140  6,140 

           

          Member Units

           

          (8)

           

           

          1,884

           

          544

           

          8,330

           

          2,000

           

           

          10,330

          I-45 SLF LLC

           Member Units (8)  255 2,881 14,586 2,255  16,841 

           

          Member Units

           

          (8)

           

           

          (2,020)

           

          3,204

           

          15,627

           

          800

           

          2,020

           

          14,407

          Indianhead Pipeline Services, LLC

           12% Secured Debt (5)   947 5,079 562 5,641  

           Preferred Member Units (5)  (338) 514 2,677 514 3,191  

           Warrants (5) 134 459   459 459  

           Member Units (5) 272 1   1 1  

          L.F. Manufacturing Holdings, LLC

           Member Units (8)  620  1,380 620  2,000 

          Meisler Operating LLC

           LIBOR Plus 8.50% (Floor 1.00%) (5)   1,249  16,633  16,633 

           Member Units (5)  190   3,390  3,390 

          OnAsset Intelligence, Inc.

           12% PIK Secured Debt (8) (29)  576 4,519 575  5,094 

           10% PIK Secured Debt (8)   3  48  48 

           Preferred Stock (8)        

           Warrants (8)        

          OPI International Ltd.

           10% Unsecured Debt (8) (86) (473) 16 473  473  

           Common Stock (8)  (1,600)  1,600  1,600  

          176


          Table of Contents

              

              

              

              

              

          Amount of

              

              

              

              

          Interest,

          Fees or

          Amount of

          Amount of

          Dividends

          December 31, 

          December 31, 

          Realized

          Unrealized

          Credited to

          2018

          Gross

          Gross

          2019

          Company

          Investment(1)(10)(11)

          Geography

          Gain/(Loss)

          Gain/(Loss)

          Income(2)

          Fair Value

          Additions(3)

          Reductions(4)

          Fair Value

          L.F. Manufacturing Holdings, LLC

           

          Preferred Member Units

           

          (8)

           

           

           

          11

           

           

          81

           

           

          81

           

          Member Units

           

          (8)

           

           

          (10)

           

           

          2,060

           

           

          10

           

          2,050

          OnAsset Intelligence, Inc.

           

          12% PIK Secured Debt

           

          (8)

           

           

           

          731

           

          5,743

           

          731

           

           

          6,474

           

          10% PIK Secured Debt

           

          (8)

           

           

           

          5

           

          53

           

          5

           

           

          58

           

          Preferred Stock

           

          (8)

           

           

           

           

           

           

           

           

          Warrants

           

          (8)

           

           

           

           

           

           

           

          PCI Holding Company, Inc.

           

          12% Current Secured Debt

           

          (9)

           

           

           

          1,488

           

          11,908

           

          98

           

          650

           

          11,356

           

          Preferred Stock

           

          (9)

           

           

          2,340

           

           

          340

           

          2,340

           

           

          2,680

           

          Preferred Stock

           

          (9)

           

           

          870

           

           

          3,480

           

          870

           

           

          4,350

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           

          12% Secured Debt

           

          (8)

           

           

          165

           

           

          250

           

          165

           

          415

           

           

          Preferred Member Units

           

          (8)

           

           

           

           

           

           

           

          Salado Stone Holdings, LLC

           

          Class A Preferred Units

           

          (8)

           

           

          (470)

           

           

          1,040

           

           

          470

           

          570

          SI East, LLC

           

          9.50% Current, Secured Debt

           

          (7)

           

           

          275

           

          3,648

           

          34,885

           

          365

           

          2,287

           

          32,963

           

          Preferred Member Units

           

          (7)

           

           

          2,200

           

          460

           

          6,000

           

          2,200

           

           

          8,200

          Slick Innovations, LLC

           

          14% Current, Secured Debt

           

          (6)

           

           

           

          983

           

          6,959

           

          679

           

          1,441

           

          6,197

           

          Warrants

           

          (6)

           

           

          109

           

           

          181

           

          109

           

           

          290

           

          Common Stock

           

          (6)

           

           

          380

           

          1,048

           

          700

           

          380

           

           

          1,080

          UniTek Global Services, Inc.

           

          LIBOR Plus 6.50% (Floor 1.00%)

           

          (6)

           

           

          22

           

          260

           

          2,969

           

          23

           

          30

           

          2,962

           

          Preferred Stock

           

          (6)

           

           

          (5,240)

           

          511

           

          7,413

           

          511

           

          5,240

           

          2,684

           

          Preferred Stock

           

          (6)

           

           

          306

           

          339

           

          1,637

           

          645

           

           

          2,282

           

          Preferred Stock

           

          (6)

           

           

          1,080

           

          53

           

           

          1,889

           

           

          1,889

           

          Preferred Stock

           

          (6)

           

           

           

          629

           

          3,038

           

          629

           

           

          3,667

           

          Common Stock

           

          (6)

           

           

          (1,420)

           

           

          1,420

           

           

          1,420

           

          Universal Wellhead Services Holdings, LLC

           

          Preferred Member Units

           

          (8)

           

           

          (345)

           

          195

           

          950

           

          195

           

          345

           

          800

           

          Member Units

           

          (8)

           

           

          (2,330)

           

           

          2,330

           

           

          2,330

           

          Volusion, LLC

           

          11.50% Secured Debt

           

          (8)

           

           

          (810)

           

          3,132

           

          18,407

           

          1,755

           

          810

           

          19,352

           

          8% Unsecured Convertible Debt

           

          (8)

           

           

          (118)

           

          31

           

          297

           

          112

           

          118

           

          291

           

          Preferred Member Units

           

          (8)

           

           

           

           

          14,000

           

           

           

          14,000

           

          Warrants

           

          (8)

           

           

          (1,740)

           

           

          1,890

           

           

          1,740

           

          150

          Other

           

           

          Amounts related to investments transferred to or from other
          1940 Act classification during the period

           

           

           

           

          (415)

           

          1,030

           

          19,439

           

           

           

          Total Affiliate investments

           

           

           

          (565)

           

          990

           

          34,732

           

          359,890

           

          46,680

           

          56,844

           

          330,287


          (1)The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.
          (2)Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts from investments transferred from other 1940 Act classifications during the period.”
          (3)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.
          (4)Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.
          (5)Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was $245,549. This represented 16.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $51,101. This represented 3.3% of net assets as of December 31, 2019.

          177


          Company
           
          Investment(1)(10)(11)
           Geography Amount of
          Realized
          Gain/(Loss)
           Amount of
          Unrealized
          Gain/(Loss)
           Amount of
          Interest,
          Fee or
          Dividends
          Credited to
          Income(2)
           December 31,
          2016
          Fair Value
           Gross
          Additions(3)
           Gross
          Reductions(4)
           December 31,
          2017
          Fair Value
           

          PCI Holding Company, Inc.

           12% Secured Debt (9)    (103) 1,922  13,000  345  752  12,593 

           Preferred Stock (9)    (5,028) 548  5,370  548  5,028  890 

           Preferred Stock (9)    870      2,610    2,610 

          Rocaceia, LLC (Quality Lease and

           12% Secured Debt (8)        250      250 

          Rental Holdings, LLC)

           Preferred Member Units (8)               

          Tin Roof Acquisition Company

           12% Secured Debt (7)      1,656  13,385  66  729  12,722 

           Class C Preferred Stock (7)      288  2,738  289    3,027 

          UniTek Global Services, Inc.

           LIBOR Plus 8.50% (Floor 1.00%) (6)    (5) 722  5,021  3,519  5  8,535 

           LIBOR Plus 7.50% (Floor 1.00%) (6)      9  824  3  690  137 

           15% PIK Unsecured Debt (6)      129  745  120    865 

           Preferred Stock (6)    (637) 1,547  6,410  1,547  637  7,320 

           Preferred Stock (6)    (8) 339    2,858  8  2,850 

           Common Stock (6)    (520)   3,010    520  2,490 

          Universal Wellhead Services

           Preferred Member Units (8)    109    720  110    830 

          Holdings, LLC

           Member Units (8)    1,300    610  1,300    1,910 

          Valley Healthcare Group, LLC

           LIBOR Plus 12.50% (Floor 0.50%) (8)      1,728  12,844  31  1,190  11,685 

           Preferred Member Units (8)        1,600      1,600 

          Volusion, LLC

           11.5% Secured Debt (8)      2,659  15,298  668  766  15,200 

           Preferred Member Units (8)        14,000      14,000 

           Warrants (8)    (496)   2,576    496  2,080 

          Other

                                    

          Amounts related to investments transferred to or from other 1940 Act classification during the period

                (1,077) (3,582) 1,615  24,321       

          Total Affiliate investments

               $8,044 $(11,330)$37,509 $375,948 $100,290 $113,063 $338,854 

          (1)
          The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.

          (2)
          Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period."

          (3)
          Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.

          (4)
          Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.

          (5)
          Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2017 for control investments located in this region was $176,505. This represented 12.8% of net assets as of December 31, 2017. The fair value as of December 31, 2017 for affiliate investments located in this region was $48,228. This represented 3.5% of net assets as of December 31, 2017.

          (6)
          Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2017 for control investments located in this region was $28,374. This represented 2.1% of net assets as of December 31, 2017. The fair value as of December 31, 2017 for affiliate investments located in this region was $60,754. This represented 4.4% of net assets as of December 31, 2017.

          (7)
          Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2017 for control investments located in this region was $33,916. This represented 2.5% of net assets as of December 31, 2017. The fair value as of December 31, 2017 for affiliate investments located in this region was $52,276. This represented 3.8% of net assets as of December 31, 2017.

          (8)
          Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2017 for control investments located in this region was $302,097. This represented 21.9% of net assets as of December 31, 2017. The fair value as of December 31, 2017 for affiliate investments located in this region was $130,621. This represented 9.5% of net assets as of December 31, 2017.

          (9)
          Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2017 for control investments located in this region was $209,814. This represented 15.2% of net assets as of December 31, 2017. The fair value as of December 31, 2017 for affiliate investments located in this region was $46,975. This represented 3.4% of net assets as of December 31, 2017.

          (10)
          All Company's portfolio investments are generally subject to restrictions on resale as "restricted securities," unless otherwise noted.

          (11)
          This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.

          Table of Contents

          (6)Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was $27,956. This represented 1.8% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $54,935. This represented 3.6% of net assets as of December 31, 2019.
          (7)Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was $52,200. This represented 3.4% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $65,058. This represented 4.2% of net assets as of December 31, 2019.
          (8)Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was $415,344. This represented 27.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $113,930. This represented 7.4% of net assets as of December 31, 2019.
          (9)Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was $291,672. This represented 19.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $45,263. This represented 2.9% of net assets as of December 31, 2019.
          (10)All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted.
          (11)This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.
          (12)Investment has an unfunded commitment as of December 31, 2019 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

          178


          Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

          Not applicable.

          Item 9A. Controls and Procedures

          (a) Evaluation of Disclosure Controls and Procedures. As of the end of the period covered by this annual report on Form 10-K, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer, President, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer, conducted an evaluation of our disclosure controls and procedures (as defined in Rule 13a-15(e)13a-15 of the Securities Exchange Act of 1934)Act). Based upon thison that evaluation, our Chief Executive Officer, President, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer have concluded that our current disclosure controls and procedures are effective to allowin timely decisions regarding required disclosurealerting them of any material information relating to us that is required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of 1934.Act.

          (b) Management'sManagement’s Report on Internal Control Over Financial Reporting. The management of Main Street Capital Corporation and its subsidiaries (the Company) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Company conducted an evaluation of the effectiveness of the Company'sCompany’s internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on the Company'sCompany’s evaluation under the framework in Internal Control — Integrated Framework, management concluded that the Company'sCompany’s internal control over financial reporting was effective as of December 31, 2018.2020. Grant Thornton LLP, the Company'sCompany’s independent registered public accounting firm, has issued an attestation report on the effectiveness of the Company'sCompany’s internal control over financial reporting as of December 31, 2018,2020, as stated in its report which is included herein.

          (c) Attestation Report of the Registered Public Accounting Firm. Our independent registered public accounting firm, Grant Thornton LLP, has issued an attestation report on the effectiveness of our internal control over financial reporting, which is set forth above under the heading "Reports“Reports of Independent Registered Public Accounting Firm"Firm” in Item 8. “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

          (d) Changes in Internal Control over Financial Reporting. There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Securities Exchange Act of 1934) that occurred during our most recently completedthe fiscal quarter ended December 31, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

          Item 9B. Other Information

                 None.Director Departure and Reduction in Size of Board


          On February 22, 2021, Ms. Valerie Banner informed our Board of Directors that after four years of excellent service to our Board, she has decided not stand for re-election to the Board of Directors at the end of her current term on the date of our 2021 annual meeting of stockholders. Ms. Banner’s decision not to stand for re-election was not the result of any disagreement with management or the Board of Directors. In connection with Ms. Banner’s departure, the Board of Directors passed a resolution reducing the number of directors that constitutes the full Board of Directors from ten to nine directors, effective as of the date of our 2021 annual meeting of stockholders.

          Fees and Expenses

          The following table is being provided to update, as of December 31, 2020, certain information in the Company’s effective shelf registration statement on Form N-2 (File No. 333-231146) filed with the SEC on April 30, 2019 as supplemented by the prospectus supplements relating to our ATM Program and to the direct stock purchase feature of the Plan. The information is intended to assist you in understanding the costs and expenses that an investor in the Company will bear directly or indirectly. We caution you that some of the percentages indicated in the table below

          179


          are estimates and may vary. Except where the context suggests otherwise, whenever this Annual Report on Form 10-K contains a reference to fees or expenses paid by “you,” “us” or “Main Street,” or that “we” will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in us.

          Stockholder Transaction Expenses:

              

              

           

          Sales load (as a percentage of offering price)

           

          %(1)

          Offering expenses (as a percentage of offering price)

           

          %(2)

          Dividend reinvestment and direct stock purchase plan expenses

           

          %(3)

          Total stockholder transaction expenses (as a percentage of offering price)

           

          %(4)

          Annual Expenses of the Company (as a percentage of net assets attributable to common stock):

           

            

          Operating expenses

           

          2.81

          %(5)

          Interest payments on borrowed funds

           

          3.43

          %(6)

          Income tax expense

           

          %(7)

          Acquired fund fees and expenses

           

          0.30

          %(8)

          Total annual expenses

           

          6.54

          %


          (1)

          The maximum agent commission with respect to the shares of our common stock sold by us in the ATM Program is 1.00%. Purchasers of shares of common stock through the direct stock purchase feature of the Plan will not pay any sales load. In the event that our securities are sold to or through underwriters, a corresponding prospectus or prospectus supplement will disclose the applicable sales load.

          (2)

          Estimated offering expenses payable by us for the estimated duration of the ATM Program are approximately $0.6 million. In the event that we conduct an offering of our securities, a corresponding prospectus or prospectus supplement will disclose the estimated offering expenses.

          (3)

          The expenses of administering the Plan are included in operating expenses. Additional costs may be charged to participants in the direct stock purchase feature of the plan for certain types of transactions.

          (4)

          Total stockholder transaction expenses may include sales load and will be disclosed in a future prospectus or prospectus supplement, if any.

          (5)

          Operating expenses in this table represent our estimated expenses.

          (6)

          Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.

          (7)

          Income tax expense relates to the accrual of (a) deferred tax provision (benefit) primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences from our portfolio investments held in Taxable Subsidiaries and (b) excise, state and other taxes. Deferred taxes are non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though deferred taxes are not currently payable or receivable. Due to the variable nature of deferred tax expense, which can be a large portion of the income tax expense, and the difficulty in providing an estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended December 31, 2020.

          (8)

          Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds.

          Example

          The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed we would have no additional leverage and that our annual operating

          180


          expenses would remain at the levels set forth in the table above
          and that you would pay either no sales load or a sales load of up to 1.00% (the commission to be paid by us with respect to common stock sold by us in the ATM Program)
          .

              

          1 Year

              

          3 Years

              

          5 Years

              

          10 Years

          You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return and no sales load

          $

          65

          $

          192

          $

          315

          $

          606

          You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return and a 1.00% sales load

          $

          75

          $

          202

          $

          325

          $

          616

          The example and the expenses in the table above should not be considered a representation of our future expenses, and actual expenses may be greater or less than those shown. While the example assumes, as required by the SEC, a 5.0% annual return, our performance will vary and may result in a return greater or less than 5.0%. In addition, while the example assumes reinvestment of all dividends at net asset value, participants in our dividend reinvestment plan will receive a number of shares of our common stock, determined by dividing the total dollar amount of the dividend payable to a participant by (i) the market price per share of our common stock at the close of trading on a valuation date determined by our Board of Directors for each dividend in the event that we use newly issued shares to satisfy the share requirements of the dividend reinvestment plan or (ii) the average purchase price of all shares of common stock purchased by the plan administrator in the event that shares are purchased in the open market to satisfy the share requirements of the dividend reinvestment plan, which may be at, above or below net asset value. See the description in “Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities — Common Stock and Holders” for additional information regarding our dividend reinvestment plan.

          PART III

          Item 10. Directors, Executive Officers and Corporate Governance

          The information required by this Item will be contained in the definitive proxy statement relating to our 20192021 annual meeting of stockholders (the "Proxy Statement"“Proxy Statement”) under the headings "Election“Election of Directors," "Corporate Governance," "Executive Officers"” “Corporate Governance” and "Section 16(a) Beneficial Ownership Reporting Compliance,"“Executive Officers” to be filed with the Securities and Exchange Commission on or prior to April 30, 2019,2021, and is incorporated herein by reference.

          We have adopted a code of business conduct and ethics that applies to directors, officers and employees of Main Street. This code of ethics is published on our Web site atwww.mainstcapital.com. We intend to disclose any substantive amendments to, or waivers from, this code of conduct within four business days of the waiver or amendment through a Web site posting.

          Item 11. Executive Compensation

          The information required by this Item will be contained in the Proxy Statement under the headings "Compensation“Compensation of Executive Officers," "Compensation” “Compensation of Directors," "Compensation” “Compensation Discussion and Analysis," "Compensation” “Compensation Committee Interlocks and Insider Participation"Participation” and "Compensation“Compensation Committee Report," to be filed with the Securities and Exchange Commission on or prior to April 30, 2019,2021, and is incorporated herein by reference.

          181


          Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

          The following table provides information regarding our equity compensation plans as of December 31, 2018:2020:

              

              

              

          Number of Securities 

          Remaining Available for

          Number of Securities to be

          WeightedAverage Exercise 

           Future Issuance Under

           Issued Upon Exercise of

          Price of Outstanding

           Equity Compensation Plans 

           Outstanding Options,

           Options, Warrants and

          (Excluding Securities 

          Plan Category

              

           Warrants and Rights

              

           Rights

              

          Reflected in Column)

          Equity compensation plans approved by security holders(1)

          $

          $

          $

          1,773,325

          Equity compensation plans not approved by security holders(2)

           

          160,352

           

           

          Total

          $

          160,352

          $

          $

          1,773,325

          Plan Category
           Number of Securities to be
          Issued Upon Exercise of
          Outstanding Options,
          Warrants and Rights
           Weighted-Average Exercise
          Price of Outstanding
          Options, Warrants and
          Rights
           Number of Securities
          Remaining Available for
          Future Issuance Under
          Equity Compensation Plans
          (Excluding Securities
          Reflected in Column)
           

          Equity compensation plans approved by security holders(1)

           $ $ $2,545,117 

          Equity compensation plans not approved by security holders(2)

            119,639     

          Total

           $119,639 $ $2,545,117 

          (1)Consists of our Main Street Capital Corporation 2015 Equity and Incentive Plan and our Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. As of December 31, 2020, we had issued 1,572,612 shares of restricted stock pursuant to these plans, of which 836,131 had vested and 45,631 shares were forfeited. Pursuant to each of these plans, if any award issued thereunder shall for any reason expire or otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become available for issuance under such plan. For more information regarding these plans, see “Note J — Share-Based Compensation” in the notes to the consolidated financial statements.
          (2)Consists of our 2015 Deferred Compensation Plan. For more information regarding this plan, see “Note M — Related Party Transactions” in the notes to the consolidated financial statements.
          (1)
          Consists of our Main Street Capital Corporation 2015 Equity and Incentive Plan and our Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. As of December 31, 2018, we had issued 764,224 shares of restricted stock pursuant to these plans, of which 285,053 had vested and 9,128 shares were forfeited. Pursuant to each of these plans, if any award issued thereunder shall for any reason expire or otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become available for issuance under such plan. For more information regarding these plans, see "Note J — Share-Based Compensation" in the notes to the consolidated financial statements.

          (2)
          Consists of our 2015 Deferred Compensation Plan. For more information regarding this plan, see "Note M — Related Party Transactions" in the notes to the consolidated financial statements.

          Table of Contents

          The other information required by this Item will be contained in the Proxy Statement under the heading "Security“Security Ownership of Certain Beneficial Owners and Management," to be filed with the Securities and Exchange Commission on or prior to April 30, 2019,2021, and is incorporated herein by reference.

          Item 13.Certain Relationships and Related Transactions, and Director Independence

          The information required by this Item will be contained in the Proxy Statement under the headings "Certain“Certain Relationships and Related Party Transactions"Transactions” and "Corporate“Corporate Governance," to be filed with the Securities and Exchange Commission on or prior to April 30, 2019,2021, and is incorporated herein by reference.

          Item 14. Principal Accountant Fees and Services

          The information required by this Item will be contained in the Proxy Statement under the heading "Ratification“Ratification of Appointment of Independent Registered Public Accounting Firm for Year Ending December 31, 2018,"2021,” to be filed with the Securities and Exchange Commission on or prior to April 30, 2019,2021, and is incorporated herein by reference.


          182



          PART IV

          Item 15. Exhibits and Consolidated Financial Statement Schedules

          The following documents are filed or incorporated by reference as part of this Annual Report:

          1.

          Consolidated Financial Statements

          1.    Consolidated Financial Statements

          Reports of Independent Registered Public Accounting Firm

          80

          77

          Consolidated Balance Sheets asSheets—As of December 31, 20182020 and 2017December 31, 2019


          82

          Consolidated Statements of Operations forOperations—For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018


          83

          Consolidated Statements of Changes in Net Assets forAssets—For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018


          84

          Consolidated Statements of Cash Flows forFlows—For the Years Endedyears ended December 31, 2018, 20172020, 2019 and 20162018


          85

          Consolidated SchedulesSchedule of Investments as of Investments—December 31, 2018 and 20172020


          86

          Consolidated Schedule of Investments—December 31, 2019

          108

          Notes to Consolidated Financial Statements


          144

          129

          2.    Consolidated Financial Statement Schedule

          2.

          Consolidated Financial Statement Schedule

          Report of Independent Registered Public Accounting Firm

          190

          168

          Schedule of Investments in and Advances to Affiliates for the Years Ended December 31, 20182020 and 20172019


          191

          169

          3.    Exhibits

                 The following3.Exhibits

          Listed below are the exhibits which are filed as part of this report or hereby incorporated by reference(according to exhibits previously filed with the SEC:number assigned to them in Item 601 of Regulation S-K):

          Exhibit
          Number

          Description

          3.1*

            3.1*

          Articles of Amendment and Restatement of Main Street Capital Corporation (previously filed as Exhibit (a) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))


          3.2*


            3.2*



          Amended and Restated Bylaws of Main Street Capital Corporation (previously filed as Exhibit 3.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on March 6, 2013 (File No. 1-33723))


          4.1*


            4.1*



          Form of Common Stock Certificate (previously filed as Exhibit (d) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))


          4.2*


            4.2*



          Dividend Reinvestment and Direct Stock Purchase Plan, dated July 18, 2017effective May 10, 2019 (previously filed as Exhibit (e)99.1 to Main Street Capital Corporation's Post-Effective Amendment No. 12 to the Registration StatementCorporation’s Current Report on Form N-28-K filed on July 18, 2017 (Reg.May 10, 2019 (File No. 333-203147)1-33723))


          4.3*


            4.3*



          Main Street Mezzanine Fund, LP SBIC debentures guaranteed by the SBA (previously filed as Exhibit (f)(1) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 (Reg. No. 333-142879))


          4.4*


            4.4*



          Main Street Capital II, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 for a substantially identical copy of the form of debentures)


          4.5*


            4.5*



          Main Street Capital III, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 for a substantially identical copy of the form of debentures)


          183


          Table of Contents

          Exhibit
          Number

          Description


          4.6*


            4.6*



          Form of Indenture between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(6) to Main Street Capital Corporation'sCorporation’s Post-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on March 28, 2013 (Reg. No. 333-183555))


          4.7*


            4.7*



          Form of Second Supplemental Indenture relating to the 4.50% Notes due 2019, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(10) to Main Street Capital Corporation's Post-Effective Amendment No. 9 to the Registration Statement on Form N-2 filed on November 4, 2014 (Reg. No. 333-183555))



            4.8*


          Form of 4.50% Notes due 2019 (incorporated by reference to Exhibit 4.7)


            4.9*


          Form of Third Supplemental Indenture relating to the 4.50% Notes due 2022, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(12) to Main Street Capital Corporation'sCorporation’s Post-Effective Amendment No. 14 to the Registration Statement on Form N-2 filed on November 17, 2017 (Reg. No. 333-203147))


          4.8*


          4.10*



          Form of 4.50% Notes due 2022 (incorporated by reference to Exhibit 4.9)4.7)


          4.9*


          10.1*


          Form of Fourth Supplemental Indenture relating to the 5.20% Notes due 2024, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(11) to Main Street Capital Corporation’s Post-Effective Amendment No. 7 to the Registration Statement on Form N-2 filed on April 18, 2019 (Reg. No. 333-223483))

          4.10*


          Form of 5.20% Notes due 2024 (incorporated by reference to Exhibit 4.9)

          4.11*

          Fifth Supplemental Indenture relating to the 3.00% Notes due 2026, between Main Street Capital Corporation anfd The Bank of New York Mellon Trust Company, N.A., as trustee (previously filed as Exhibit 4.1 to Main Street Capital Corporation’s Current Report on Form 8-K filed on January 14, 2021 (File No. 1-33723))

          4.12*

          Form of 3.00% Notes due 2026 (incorporated by reference to Exhibit 4.11)

          4.13*

          Description of Main Street Capital Corporation’s securities registered pursuant to Section 12 of the Securities Exchange Act of 1934 (previously filed as Exhibit 4.11 to Main Street Capital Corporation’s Annual Report on Form 10-K filed on February 28, 2020 (File No. 1-33723))

          10.1*

          Third Amended and Restated Credit Agreement dated June 5, 2018 (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))


          10.2*


          10.2*



          Third Amended and Restated General Security Agreement dated June 5, 2018 (previously filed as Exhibit 10.2 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))


          10.3*


          10.3*



          Third Amended and Restated Equity Pledge Agreement dated June 5, 2018 (previously filed as Exhibit 10.3 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))


          10.4*


          10.4*



          Amended and Restated Custodial Agreement dated September 20, 2010 (previously filed as Exhibit 10.3 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed September 21, 2010 (File No. 1-33723))


          10.5*


          10.5*



          Third Amendment to Amended and Restated Credit Agreement and First Amendment to Amended and Restated Custodial Agreement dated November 21, 2011 (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed November 22, 2011 (File No. 1-33723))


          10.6*


          10.6*



          Supplement Agreement dated July 19, 2018 (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on July 20, 2018 (File No. 1-33723))


          10.7*


          10.7*



          Supplement Agreement dated November 15, 2018 (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on November 15, 2018 (File No. 1-33723))


          10.8*


          10.8*†


          Supplement Agreement dated March 23, 2020 (previously filed as Exhibit 10.1 to Main Street Capital Corporation’s Current Report on Form 8-K filed on March 24, 2020 (File No. 1-33723))

          10.9*

          First Amendment to Third Amended and Restated Credit Agreement dated May 28, 2020 (previously filed as Exhibit 10.1 to Main Street Capital Corporation’s Quarterly Report on Form 10-Q filed on August 7, 2020 (File No. 1-33723))

          10.10*

          Supplement Agreement dated November 4, 2020 (previously filed as Exhibit 10.2 to Main Street Capital Corporation’s Quarterly Report on Form 10-Q filed on November 6, 2020 (File No. 1-33723))

          184



          Table of Contents

          Exhibit
          Number
          Description

          10.14*†


          10.11*†



          Form of Restricted Stock Agreement for Non-Employee Directors — Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.7 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))


          10.15*


          10.12*



          Custodian Agreement (previously filed as Exhibit (j) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))


          10.16*†


          10.13*†



          Form of Confidentiality and Non-Compete Agreement by and between Main Street Capital Corporation and Vincent D. Foster (previously filed as Exhibit (k)(12) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))


          10.17*†


          10.14*†



          Form of Indemnification Agreement by and between Main Street Capital Corporation and each executive officer and director (previously filed as Exhibit (k)(13) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))


          10.18*


          10.15*



          Investment Sub-AdvisoryAdvisory and Administrative Services Agreement dated May 31, 2012October 30, 2020 by and among HMSMSC Adviser LP, Main Street Capital Partners,I, LLC Main Street Capital Corporation and HMSMSC Income Fund, Inc. (previously filed as Exhibit (g)(2) to HMS Income Fund, Inc.'s Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on May 31, 2012 (Reg. No. 333-178548))



          10.16*


          Assignment and Assumption of Investment Sub-Advisory Agreement dated December 31, 2013 by and among MSC Adviser I,  LLC, HMS Adviser, LP, Main Street Capital Partners, LLC, Main Street Capital Corporation and HMS Income Fund, Inc. (previously filed as Exhibit 10.1410.1 to Main Street Capital Corporation's AnnualCorporation’s Current Report on Form 10-K for the year ended December 31, 20138-K filed on February 28, 2014November 3, 2020 (File No. 1-33723))


          10.19*†


          10.17*†



          Main Street Capital Corporation Deferred Compensation Plan Adoption Agreement and Plan Document (previously filed as Exhibit 4.1 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on December 18, 2015 (File No. 333-208643))


          10.20*


          10.18*



          Form of Equity Distribution Agreement dated May 10, 201816, 2019 (previously filed as Exhibit (h)(3)1.1 to Main Street Capital Corporation's Post-Effective Amendment No. 1 to the Registration StatementCorporation’s Current Report on Form N-28-K filed on May 10, 2018 (Reg.16, 2019 (File No. 333-223483)1-33723))


          14.1**


          14.1*



          Joint Code of Business Conduct and Ethics (previously filed as Exhibit 14.1 to Main Street Capital Corporation's Quarterly Report on Form 10-Q for the quarter ended September 30, 2018 filed on November 2, 2018 (File No. 1-33723))


          21.1**


          21.1



          List of Subsidiaries


          23.1**


          23.1



          Consent of Grant Thornton LLP, independent registered public accounting firm


          31.1**


          31.1



          Rule 13a-14(a)/15d-14(a) certification of Chief Executive Officer


          31.2**


          31.2



          Rule 13a-14(a)/15d-14(a) certification of Chief Financial Officer


          32.1**


          32.1



          Section 1350 certification of Chief Executive Officer


          32.2**


          32.2



          Section 1350 certification of Chief Financial Officer


          *
          Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference.

          Management contract or compensatory plan or arrangement.

          *

          Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference.

          **

          Furnished herewith.

          Management contract or compensatory plan or arrangement.


          185


          SIGNATURES


          SIGNATURES

          Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

          MAIN STREET CAPITAL CORPORATION




          By:



          /s/ DWAYNE L. HYZAK


          Dwayne L. Hyzak

          Chief Executive Officer and Director

          Date: February 26, 2021

          Date: March 1, 2019

          Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

          Signature
          Title
          Date





          Signature

          Title

          Date

          /s/ DWAYNE L. HYZAK


          Dwayne L. Hyzak

          Chief Executive Officer and Director

          February 26, 2021

          Dwayne L. Hyzak

          (principal executive officer)

          March 1, 2019


          /s/ VINCENT D. FOSTER


          Vincent D. Foster



          Executive Chairman of the Board of Directors



          March 1, 2019

          February 26, 2021


          Vincent D. Foster

          /s/ BRENT D. SMITH


          Brent D. Smith



          Chief Financial Officer and Treasurer

          February 26, 2021

          Brent D. Smith

          (principal financial officer)



          March 1, 2019


          /s/ SHANNON D. MARTIN


          Shannon D. MartinLANCE A. PARKER



          Vice President, Chief Accounting Officer

          February 26, 2021

          Lance A. Parker

          (principal accounting officer)



          March 1, 2019


          /s/ JOSEPH E. CANON

          Joseph E. Canon



          Director



          March 1, 2019


          /s/ MICHAEL APPLING JR.


          Michael Appling Jr.VALERIE L. BANNER



          Director



          March 1, 2019

          February 26, 2021


          Valerie L. Banner

          /s/ ARTHUR L. FRENCH


          Director

          February 26, 2021

          Arthur L. French



          Director



          March 1, 2019


          /s/ J. KEVIN GRIFFIN


          Director

          February 26, 2021

          J. Kevin Griffin



          Director



          March 1, 2019


          /s/ JOHN E. JACKSON


          Director

          February 26, 2021

          John E. Jackson



          Director



          March 1, 2019


          /s/ BRIAN E. LANE


          Director

          February 26, 2021

          Brian E. Lane



          Director



          March 1, 2019


          /s/ STEVEN B. SOLCHER

          Steven B. Solcher



          Director



          March 1, 2019


          /s/ VALERIE L. BANNER


          Valerie L. BannerKAY MATTHEWS



          Director



          March 1, 2019

          February 26, 2021

          Kay Matthews


          186



          Signature

          Title

          Date

          /s/ DUNIA A. SHIVE

          Director

          February 26, 2021

          Dunia A. Shive

          /s/ STEPHEN B. SOLCHER

          Director

          February 26, 2021

          Stephen B. Solcher

          187