renewal cycle, we maintained similar retentionsincreased attachment points on most linesproperty reinsurance structures and increased co-participations within the ceded layers of business.property and casualty structures.

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PROPERTY REINSURANCE — CATASTROPHE COVERAGE

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Our property CATcatastrophe reinsurance reduces the financial impact of a CATcatastrophe event involving multiple claims and policyholders, including earthquakes, hurricanes, floods, convective storms terrorist acts and certain other aggregating events. Reinsurance limits purchased fluctuate due to changes in the amount of exposure we insure, reinsurance costs, insurance company surplus levels and our risk appetite. In addition, we monitor the expected rate of return for each of our CATcatastrophe lines of business. At high rates of return, we grow the book of business and may purchase additional reinsurance to increase our capacity. As the rate of return decreases, we may reduce exposure and may purchase less reinsurance as this capacity becomes unnecessary. Our reinsurance coverage for 20192021 through 20212023 are shown in the following table:

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Catastrophe Coverages

(in millions)

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These CATcatastrophe limits are in addition to the per-occurrence coverage provided by facultative and other treaty coverages. We have participated in the CATcatastrophe layers purchased by retaining a percentage of each layer throughout this period. Our participation has varied based on price and the amount of risk transferred by each layer. All layers of the treaty include one prepaid reinstatement.

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Our property CATcatastrophe program continues to be applied on an excess of loss basis. It attaches after all other applicable reinsurance has been considered. Although covered in one program, limits and attachment points differ for California earthquakes and all other perils. The following charts use information from our CATcatastrophe modeling software to illustrate our pre-tax net retention resulting from particular events that would generate the gross losses.

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Catastrophe - California Earthquake

(in millions)

Catastrophe - Other (Earthquake outside of California, Wind, Other)

(in millions)

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In the above table,tables, projected losses for 20212023 were estimated based on our exposure as of December 31, 2020,2022, utilizing the treaty structure in place as of January 1, 2021. All previous years were estimated similarly by utilizing the treaty structure in place at the start of the listed year and the exposure at the end of the previous year.

2023. The previous tables were generated using theoretical probabilities of events occurring in areas where our portfolio of in-force policies could generate the level of loss illustrated. Actual results could vary significantly from these tables as the actual nature or severity of a particular event cannot be predicted with any reasonable degree of accuracy.accurately predicted. Reinsurance limits are purchased based on the anticipated losses from large events. The largest losses shown above are possible, but have a lower probability of actually occurring. However, there is a remote chance that a larger event could occur. If the actual event losses are larger than anticipated, we could retain additional losses above the limit of our CATcatastrophe reinsurance.

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We regularly monitor and quantify our exposure to catastrophes. In the normal course of business, we manage our concentrations of exposures to catastrophic events, primarily by limiting concentrations of locations insured to acceptable levels and by purchasing reinsurance. Exposure and coverage detail is recorded for each risk location. We quantify and monitor the total policy limit insured in each geographical region. In addition, we use third-party CATcatastrophe exposure models and an internally developed analysis to assess each risk to ensure we include an appropriate charge for assumed CATcatastrophe risks.

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Catastrophe exposure modeling is inherently uncertain due to the model’s reliance on an infrequent observation of actual events, and exposure data, increasing the importance of capturing accurate policy coverage data. The model results are used both in the

underwriting analysis of individual risks and at a corporate level for the aggregate book of CAT-exposedcatastrophe-exposed business. From both perspectives, we consider the potential loss produced by individual events that represent moderate-to-high loss potential at varying probabilities and magnitudes. In calculating potential losses, we use assumptions including, but not limited to, loss amplification and loss adjustment expense. We establish risk tolerances at the portfolio level based on market conditions, the level of reinsurance available, changes to the assumptions in the CATcatastrophe models, rating agency capital constraints, underwriting guidelines and coverages and internal preferences. Our risk tolerances for each type of CAT,catastrophe, and for all perils in aggregate, change over time as these internal and external conditions change.

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We are required to report to the rating agencies estimated loss to a single event that could include all potential earthquakes and hurricanes contemplated by the CATcatastrophe modeling software. This reported loss includes the impact of insured losses based on the estimated frequency and severity of potential events, loss adjustment expense, reinstatements paid after the loss, reinsurance recoveries and taxes. Based on the CATcatastrophe reinsurance treaty purchased on January 1, 2021,2023, there is a 99.6 percent likelihood that the net loss will be less than 7.010.8 percent of policyholders’ statutory surplus as of December 31, 2020.2022. Comparatively, based on the catastrophe reinsurance treaty purchased on January 1, 2022, there was a 99.6 percent likelihood that the net loss would have been less than 4.6 percent of policyholders’ statutory surplus as of December 31, 2021. Over the past five years, the comparative net loss each year at a 99.6 percent likelihood ranged from 4.6 percent of surplus to 16.2 percent of surplus. The exposure levels are within our tolerances for this risk.

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OPERATING RATIOS

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PREMIUMS TO SURPLUS RATIO

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The following table shows, for the periods indicated, our insurance subsidiaries’ statutory ratios of net premiums written to policyholders’ surplus. While there is no statutory requirement applicable to the Company that establishes a permissible net premiums written to surplus ratio, guidelines established by the National Association of Insurance Commissioners (NAIC) provide that this ratio should generally be no greater than 3 to 1. While the NAIC provides this general guideline, rating agencies often require a more conservative ratio to maintain strong or superior ratings.

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COMBINED RATIO AND STATUTORY COMBINED RATIO

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Our underwriting experience is best indicated by our combined ratio, which is the sum of (a) the ratio of incurred losses and settlement expenses to net premiums earned (loss ratio) and (b) the ratio of policy acquisition costs and other operating expenses to net premiums earned (expense ratio). The difference between the combined ratio and 100 reflects the per dollar rate of underwriting income or loss, with ratios below 100 indicating underwriting profit and ratios above 100 indicating underwriting loss.

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We also calculate the statutory combined ratio, which is not indicative of underwriting income due to accounting for policy acquisition costs differently for statutory accounting purposes. The statutory combined ratio is the sum of (a) the ratio of statutory loss and settlement expenses incurred to statutory net premiums earned (loss ratio) and (b) the ratio of statutory policy acquisition costs and other underwriting expenses to statutory net premiums written (expense ratio).

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have fair and reasonable terms, and the insurers’ policyholders’ surplus following any transaction must be both reasonable in relation to its outstanding liabilities and adequate for its needs. Notice to and, in some cases, consent from regulators is required prior to the completion of certain transactions affecting insurance company subsidiaries of the holding company system. Each state and territory individually regulates the insurance operations of both insurance companies and insurance agents/brokers. Most insurance regulations are designed to protect the interests of policyholders rather than shareholders and other investors.

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The primary focus of state regulation of insurance companies is financial solvency and market conduct practices. Regulations designed to ensure the financial solvency of insurers are enforced by various filing, reporting and examination requirements. Marketplace oversight is conducted by monitoring and periodically examining trade practices, approving policy forms, licensing agents and brokers and requiring the filing and, in some cases, approval of premiums and commission rates to ensure they are fair and adequate.

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Because our insurance company subsidiaries operate in all 50 states, the District of Columbia, Puerto Rico, the Virgin Islands and Guam, we must comply with the individual insurance laws, regulations, rules and case law of each state and territory, including those regulating the filing of insurance rates and forms. Each of our three insurance company subsidiaries are domiciled in Illinois, with the Illinois Department of Insurance (IDOI) as its principal insurance regulator. Changes to the state insurance regulatory requirements are frequent, including changes caused by state legislation, regulations by the state insurance departments and court rulings.

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As a holding company, the amount of dividends we are able to pay depends upon the funds available for distribution, including dividends or distributions from our subsidiaries. The Illinois insurance laws applicable to our insurance company subsidiaries impose certain restrictions on their ability to pay dividends. The Illinois insurance holding company laws require that ordinary dividends paid by an insurance company be reported to the IDOI prior to payment of the dividend, and that extraordinary dividends may not be paid without such regulator’s prior approval (or the absence of disapproval). The IDOI has broad authority to prevent the reduction of statutory surplus to inadequate levels, and there is no assurance that extraordinary dividend payments would be permitted.

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Illinois has adopted the Amended Holding Company Model Act, which imposes reporting obligations on parents and other affiliates of licensed insurers or reinsurers, with the purpose of protecting the licensed companies from enterprise risk. The Amended Holding Company Model Act requires the ultimate controlling person (in our case RLI Corp.) to file an annual enterprise risk report identifying the material risks within the insurance holding company system that could pose enterprise risk to the licensed companies. An enterprise risk is generally defined as an activity or event involving affiliates of an insurer that could have a material adverse effect on the insurer or the insurer’s holding company system. We report on these risks on an annual basis and are in compliance with this law.

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Illinois has adopted the Own Risk and Solvency Assessment (ORSA) model act. ORSA is applicable to Illinois domiciled insurance companies that meet certain size requirements, including ours. The ORSA program is a key component of an insurance company’s overall enterprise risk management (ERM) framework, and is the process by which organizations identify, measure, monitor and manage key risks affecting the entire enterprise. The Company files an ORSA summary report with the IDOI each year, which includes an internal identification, description and assessment of the risks associated with our business plan and the sufficiency of capital resources to support those risks.

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The NAIC uses a risk-based capital (RBC) model to monitor and regulate the solvency of licensed property and casualty insurance companies. Illinois has adopted a version of the NAIC’s model law. The RBC calculation is used to measure an insurer’s capital adequacy with respect to: the risk characteristics of the insurer’s premiums written and unpaid losses and loss adjustment expenses, rate of growth and quality of assets, among other measures. Depending on the results of the RBC calculation, insurers may be subject to varying degrees of regulatory action. RBC is calculated annually by insurers, as of December 31 of each year. As of December 31, 2022, each of our insurance company subsidiaries had RBC levels significantly in excess of the company action level RBC, defined as being 200 percent of the authorized control level RBC, which would prompt corrective action under Illinois law. RLI Ins., our principal insurance company subsidiary, had an authorized control level RBC of $249.7 million compared to actual statutory capital and surplus of $1.4 billion as of December 31, 2022, resulting in statutory capital that is more than five times the authorized control level. The calculation of RBC requires certain judgments to be made, and, accordingly, each of our insurance company subsidiaries’ current RBC may be greater or less than the RBC calculated as of any date of determination. In addition, in 2022, the Illinois Department of Insurance amended its regulations by adopting the NAIC’s Group Capital Standards. This new Group Capital calculation will expand our existing RBC calculations to include (i) capital requirements for other regulated entities in the RLI Group, and (ii) defined capital calculations for other RLI Group entities that are unregulated. We expect our Group Capital calculation to be well over any regulatory minimum threshold.

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Each of our insurance company subsidiaries is required to file detailed annual reports, including financial statements, in accordance with prescribed statutory accounting rules, with regulatory officials in the jurisdictions in which they conduct business. The quarterly and annual financial reports filed with the states utilize statutory accounting principles (SAP) that are different from generally accepted accounting principles in the United States of America (GAAP). As a basis of accounting, SAP was developed to monitor and regulate the solvency of insurance companies. In developing SAP, insurance regulators were primarily concerned with assuring an insurer’s ability to pay all its current and future obligations to policyholders.

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As part of their routine regulatory oversight process, state insurance departments conduct periodic detailed examinations, generally once every three to five years, of the books, records, accounts and operations of insurance companies that are domiciled in their states. Examinations are generally carried out in cooperation with the insurance departments of other, non-domiciliary states under guidelines promulgated by the NAIC. The most recent examination report of our insurance company subsidiaries completed by the IDOI was issued on November 27, 2018, for the five-year period ending December 31, 2017. The examination report is available to the public. An exam for the five-year period ending December 31, 2022 will be conducted in 2023.

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Each of our insurance company subsidiaries is subject to Illinois laws and regulations that impose restrictions on the amount and type of investments our insurance company subsidiaries may have. Such laws and regulations generally require diversification of the insurer’s investment portfolio and limit the amounts of investments in certain asset categories, such as below investment grade fixed income securities, real estate-related equity, other equity investments and derivatives. Failure to comply with these laws and regulations would generally cause investments that exceed regulatory limitations to be treated as non-admitted assets for measuring statutory surplus and, in some instances, could require the divestiture of such non-qualifying investments.

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Many jurisdictions have laws and regulations that limit an insurer’s ability to withdraw from a particular market. For example, states may limit an insurer’s ability to cancel or non-renew policies. Furthermore, certain states prohibit an insurer from withdrawing one or more lines of business from the state, except pursuant to a plan that is approved by the state insurance department. The state insurance department may disapprove a withdrawal plan that may lead to marketplace disruption. Laws and regulations that limit cancellation and non-renewal, and that subject program withdrawals to prior approval requirements, may restrict our ability to exit unprofitable marketplaces in a timely manner.

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Virtually all states require licensed insurers to participate in various forms of guaranty associations in order to bear a portion of the loss suffered by qualified policyholders of insurance companies that become insolvent. Depending upon state law, licensed insurers can be assessed a small percentage of the annual premiums written for the relevant lines of insurance in that state to contribute to paying the claims of insolvent insurers. These assessments may increase or decrease in the future, depending upon the rate of insurance company insolvencies. In some states, these assessments may be wholly or partially recovered through policy fees paid by insureds. We cannot predict the amount and timing of future assessments. Therefore, the liabilities we have currently established for these potential assessments may not be adequate and an assessment may materially impact our financial condition.

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In addition, the insurance holding company laws require advance approval by state insurance commissioners of any change in control of an insurance company that is domiciled, or in some cases, having such substantial business that it is deemed to be commercially domiciled in that state. “Control” is generally presumed to exist through the ownership of 10 percent or more of the voting securities of a domestic insurance company or of any company that controls a domestic insurance company. In addition, insurance laws in many states contain provisions that require pre-notification to the insurance commissioners of a change in control of a non-domestic insurance company licensed in those states. Any future transactions that would constitute a change in control of our insurance company subsidiaries, including a change of control of RLI Ins., would generally require the party acquiring control to obtain the prior approval by the insurance departments of the insurance company subsidiaries’ state of domicile (Illinois) or commercial domicile, if applicable. It may also require pre-acquisition notification in applicable states that have adopted pre-acquisition notification provisions. Obtaining these approvals could result in a material delay of, or deter, any such transaction.

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In light of the number and severity of U.S. company data breaches, a number of states have enacted new insurance laws that require certain regulated entities to implement and maintain comprehensive information security programs to safeguard the personal information of insureds. In 2017, the New York State Department of Financial Services (NYDFS) enacted a cybersecurity regulation. This regulation requires banks, insurance companies and other financial services institutions regulated by the NYDFS to establish and maintain a cybersecurity program “designed to protect consumers and ensure the safety and soundness of New York State’s financial services industry.” We have implemented the requirements of the regulation and are in compliance with it.

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The NAIC adopted the Insurer Climate Risk Disclosure Data Survey to provide regulators with information about the assessment of risks posed by climate change to insurers and the actions insurers are taking in response to their understanding of climate change risks. In 2022, the Company provided responses for reporting year 2021 which may be accessed on the California Department of Insurance’s website.

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The rates, policy terms and conditions of reinsurance agreements generally are not subject to regulation by any regulatory authority. However, the ability of a ceding insurer to take credit for the reinsurance purchased from reinsurance companies is a significant component of reinsurance regulation. Typically, a ceding insurer will only enter into a reinsurance agreement if it can obtain credit against its reserves on its statutory basis financial statements for the reinsurance ceded to the reinsurer. With respect to U.S. domiciled ceding companies, credit is usually granted when the reinsurer is licensed, accredited or certified in the state where the ceding company is domiciled. States also generally permit ceding insurers to take credit for reinsurance if the reinsurer is: (1) domiciled in a state with a credit for reinsurance law that is substantially similar to the credit for reinsurance law in the primary insurer’s state of domicile and (2) meets certain financial requirements. Credit for reinsurance purchased from a reinsurer that does not meet the foregoing conditions is generally allowed to the extent that such reinsurer secures its obligations with qualified collateral.

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Insurers are also subject to state laws regulating claim handling practices. The NAIC created a model unfair claims practices law which most states have fully or partially adopted. These laws and regulations set the standards by which insurers must investigate and resolve claims; however, a private cause of action for violation is not available to claimants. These laws typically prohibit: (1) misrepresentation of policy provisions, (2) failing to adopt and act promptly when claims are presented and (3) refusing to pay claims without an investigation. Market conduct examinations or insurance regulator investigations may be prompted through annual reviews or excessive numbers of complaints against an insurer. After an investigation or market conduct review by an insurance regulator, insurers found to be in violation of these laws and regulations face potential fines, cease and desist orders, remediation orders or loss of authority to write business in the particular state.

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FEDERAL LEGISLATION AND REGULATION

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The U.S. insurance industry is not currently subject to any significant federal regulation related to the business of insurance and instead is regulated principally at the state level. The Company is subject to a number of federal regulatory requirements related to securities, employment practices, qualified employee benefits plans and financial disclosures, among others.

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As part of the passage of the Terrorism Risk Insurance Program Reauthorization Act (TRIPRA) in January 2015, the National Association of Registered Agents and Brokers (NARAB) was established by federal law, which was expected to streamline insurance agent/broker licensing. There has been little progress in implementing the provisions of NARAB to date.

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Other federal laws and regulations apply to many aspects of our company and its business operations. This federal regulation includes, without limitation, laws affecting privacy and data security and credit reporting — examples of which include the Gramm-Leach-Bliley Act, Fair Credit Reporting Act and Fair and Accurate Credit Transactions Act. It also includes international economic and trade sanctions — examples of which include the Office of Foreign Asset Control (OFAC) and the Iran Threat Reduction and Syrian Human Rights Act (ITR/SHR). ITR/SHR generally prohibits U.S. companies from engaging in certain transactions with the government of Iran or certain Iranian businesses, including the provision of insurance or reinsurance. Under ITR/SHR, we must disclose whether RLI Corp. or any of its affiliates knowingly engaged in certain specified activities identified in that law. For the year 2022, neither RLI Corp. nor its affiliates have knowingly engaged in any transaction or dealing reportable under Section 13(r) of the Exchange Act, as required by the ITR/SHR.

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LICENSES AND TRADEMARKS

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We hold a U.S. federal service mark registration of our corporate name “RLI” and several other company service marks and trademarks with the U.S. Patent and Trademark Office. Such registrations protect our intellectual property nationwide from deceptively similar use. The duration of these registrations is 10 years, unless renewed. We monitor our trademarks and service marks and protect them from unauthorized use as necessary.

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HUMAN CAPITAL

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RLI is a specialty underwriting company whose achievement emanates from our entrepreneurial, ownership culture. We strive to hire top underwriting and claim talent, who work closely with our customers throughout the United States. Compensation plans are designed to reward profitability and shareholder value creation to better align compensation with the longer-term nature of insurance products and stakeholder expectations. Underwriters have the resources and authority to operate within established underwriting guidelines and share in the rewards when they succeed. We solicit employee feedback to help ensure employees are engaged, feel valued and are contributing to our success.

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As of December 31, 2022, the Company employed 1,001 associates throughout the United States and the average employee tenure was 9.2 years. We prefer to utilize our own underwriting, claims and support staff, given the complex nature of our products.

The niche markets we operate within require unique experience and deep knowledge to select appropriate risks and serve our customers. Ensuring a seamless transfer of knowledge as employees retire and developing newer talent continues to be a focus of the Company. We enable employees to maintain and expand their industry knowledge and technical expertise through education and training, as well as through memberships in industry and trade associations. We leverage the services of a limited number of third-party contractors when it is difficult to hire employees that address a needed skill set outside of our core insurance functions or when efficiencies can be gained.

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Human Capital Oversight

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At the Board of Directors level, oversight of human capital is provided by the Human Capital and Compensation Committee (HCCC). Executive oversight for human capital is provided by the Company’s Vice President of Human Resources, who reports to the President & CEO. Key responsibilities of the Vice President of Human Resources include providing effective programs related to staffing and succession planning, employee recruiting and development, compensation and benefits, and compliance, which are monitored by the HCCC.

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Compensation and Benefits

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We compensate employees through a competitive compensation (Total Rewards) program that includes a base salary or hourly wage, annual incentives for all full-time employees, long-term incentives for management, retirement benefits, as well as health, disability and life insurance. We utilize various information sources, including local, regional and national compensation surveys, to establish competitive pay targets for each position in the company to ensure our Total Rewards program attracts and retains a talented workforce.

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An important element of the Total Rewards program is to promote alignment of employee and shareholder interests, which is achieved through the Company’s Employee Stock Ownership Plan (ESOP) and long-term incentive plan (LTIP). The ESOP is a qualified retirement plan that provides shares of RLI Corp. stock to employees based on the profitability of the Company, while management is granted stock options and restricted stock units through the LTIP. Management, at the level of vice president and above, is subject to stock ownership guidelines requiring them to hold Company shares valued at a multiple of their base salary, depending on their role. As of December 31, 2022, 9 percent of RLI Corp. shares were owned by insiders.

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Diversity and Inclusion

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We strive to cultivate an exceptional workforce to perpetuate our ownership culture, deliver excellent customer service and continue to achieve superior business results. Our goal is to attract, develop and retain the best talent from diverse backgrounds, while promoting a culture where different viewpoints are valued and individuals feel respected, are treated fairly and have an opportunity to excel in their chosen careers.

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FORWARD LOOKING STATEMENTS

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Forward looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 appear throughout this report. These statements relate to our current expectations, beliefs, intentions, goals or strategies regarding the future and are based on certain underlying assumptions by the Company. These forward looking statements generally include words such as “expect,” “predict,” “estimate,” “will,” “should,” “anticipate,” “believe” and similar expressions. Such assumptions are, in turn, based on information available and internal estimates and analyses of general economic conditions, competitive factors, conditions specific to the property and casualty insurance and reinsurance industries, claims development and the impact thereof on our loss reserves, the adequacy and financial security of our reinsurance programs, developments in the securities market and the impact on our investment portfolio, regulatory changes and conditions and other factors and are subject to various risks, uncertainties and other factors, including, without limitation those set forth below in “Item 1A Risk Factors.” Actual results could differ materially from those expressed in, or implied by, these forward looking statements. We assume no obligation to update any such statements. You should review the various risks, uncertainties and other factors listed from time to time in our Securities and Exchange Commission filings.

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Item 1A. Risk Factors

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Insurance Industry

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Our results of operations and revenues may fluctuate as a result of many factors, including cyclical changes in the insurance industry, which may cause the price of our securities to be volatile.

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The results of operations of companies in the property and casualty insurance industry historically have been subject to significant fluctuations and uncertainties. Our profitability can be affected significantly by:

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In addition, the demand for property and casualty insurance, both admitted and excess and surplus lines, can vary significantly, rising as the overall level of economic activity increases and falling as that activity decreases, causing our revenues to fluctuate. These fluctuations in results of operations and revenues may not reflect long-term results and may cause the price of our securities to be volatile.

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A significant percentage of our premium revenues are sold through a few brokers and carrier partners and a loss of business provided by any of them could adversely affect us.

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We market our insurance products through brokers, agents and carrier partners. Accordingly, our business is dependent on the willingness of these agents, brokers and carrier partners to recommend our products to their customers, who may also promote and distribute the products of our competitors. Loss of all or a substantial portion of the business written through these parties could have a material adverse effect on our business.

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Our business is concentrated in several key states and a change in our business in one of those states could disproportionately affect our financial condition or results of operations.

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Although we operate in all 50 states, 53 percent of our direct premiums earned were generated in four states in 2022: California – 17 percent; Florida – 14 percent; New York – 11 percent; and Texas – 11 percent. An interruption in our operations, or a negative change in the business environment, insurance market or regulatory environment in one or more of these states could have a disproportionate effect on our business and direct premiums earned.

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We compete with a large number of companies in the insurance industry to underwrite premium and their actions could ultimately impact our overall results.

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We compete with a large number of other companies in our selected lines of business. We are vulnerable to the actions of other companies who may seek to write business without the appropriate regard for risk and profitability, especially during periods of intense competition for premium. During these times, it is very difficult to grow or maintain premium volume without sacrificing underwriting discipline and income.

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We face competition from specialty insurance companies, underwriting agencies and intermediaries, as well as diversified financial services companies that are significantly larger than we are, and that have significantly greater financial, marketing,