PROSPECTUS

Common Stock
Preferred Stock
Warrants
Subscription Rights
Debt Securities
We are a specialty finance company that invests primarily in the debt securities of private middle market U.S. companies. Our investment objectives are to generate current income and, to a lesser extent, long-term capital appreciation.
We are an externally managed, non-diversified, closed-end management investment company that has elected to be regulated as a business development company, or BDC, under the Investment Company Act of 1940, as amended, or the 1940 Act. Our investments and activities are managed by FS/KKR Advisor, LLC, or the Advisor, a registered investment adviser under the Investment Advisers Act of 1940, as amended, or the Advisers Act, that is jointly operated by an affiliate of Franklin Square Holdings, L.P., or FS Investments, and by KKR Credit Advisors (US) LLC, or KKR Credit.
We may offer, from time to time, in one or more offerings or series, together or separately, our common stock, preferred stock, warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, subscription rights or debt securities, which we refer to, collectively, as the “securities”. We may sell our common stock through underwriters or dealers, “at-the-market” to or through a market maker into an existing trading market or otherwise directly to one or more purchasers or through agents or through a combination of methods of sale. The identities of such underwriters, dealers, market makers or agents, as the case may be, will be described in one or more supplements to this prospectus. The securities may be offered at prices and on terms to be described in one or more supplements to this prospectus. In the event we offer common stock, the offering price per share of our common stock exclusive of any underwriting commissions or discounts will not be less than the net asset value per share of our common stock at the time we make the offering except (1) in connection with a rights offering to our existing stockholders, (2) with the consent of the majority of our common stockholders and approval of our board of directors or (3) under such circumstances as the Securities and Exchange Commission, or the SEC, may permit. In past years, we obtained the approval of our stockholders to issue shares of common stock at prices below the then-current net asset value of our common stock, subject to certain conditions, during the twelve-month periods beginning on the date of such approvals. The latest authorization expired on July 15, 2021. At our 2021 annual stockholder meeting, we will again seek the approval of our stockholders to issue shares of our common stock at prices below the then-current net asset value per share for a twelve-month period following stockholder approval. See “Risk Factors” and “Sales of Common Stock Below Net Asset Value” for more information.
Our common stock is traded on the New York Stock Exchange, LLC, or the NYSE, under the ticker symbol “FSK”. The last reported closing price for our common stock on September 27, 2021 was $22.28 per share. The net asset value of our common stock on June 30, 2021 (the last date prior to the date of this prospectus for which we publicly disclosed our net asset value) was $26.84 per share.
We invest in securities that are rated below investment grade by rating agencies or that would be rated below investment grade if they were rated. Below investment grade securities, which are often referred to as “junk,” have predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. They may also be difficult to value and illiquid.
Investing in our securities may be considered speculative and involves a high degree of risk, including the risk of a substantial loss of investment. See “Risk Factors” beginning on page 17 of this prospectus, in our most recent Annual Report on Form 10-K, in any of our other filings with the SEC, and in any applicable prospectus supplement to read about the risks you should consider before buying our securities, including the risk of leverage.
This prospectus describes some of the general terms that may apply to an offering of our securities. We will provide the specific terms of these offerings and securities in one or more supplements to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The prospectus supplement and any related free writing prospectus may also add, update, or change information contained in this prospectus. You should carefully read this prospectus, the applicable prospectus supplement, and any related free writing prospectus, and the documents incorporated by reference, before buying any of the securities being offered and keep them for future reference. We file annual, quarterly and current reports, proxy statements and other information about us with the SEC. This information is available free of charge by contacting us at 201 Rouse Boulevard, Philadelphia, Pennsylvania 19112, by calling us collect at (215) 495-1150 or by visiting our website at www.fskkradvisor.com. Information contained on our website is not incorporated by reference into this prospectus or any supplements to this prospectus, and you should not consider that information to be part of this prospectus or any supplements to this prospectus. The contact information provided above may be used by you to make investor inquiries. The SEC also maintains a website at www.sec.gov that contains such information.
Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
This prospectus may not be used to consummate sales of securities unless accompanied by a prospectus supplement.
THE DATE OF THIS PROSPECTUS IS OCTOBER 4, 2021.