CAPITAL SOUTHWEST CORP

1. ORGANIZATION AND BASIS OF PRESENTATION

References in this Annual Report on Form 10-K to “we,” “our,” “us,” “CSWC,” or the “Company” refer to Capital Southwest Corporation, unless the context requires otherwise.

Organization

Capital Southwest Corporation is an internally managed investment company that specializes in providing customized financing to middle market companies in a broad range of investment segments located primarily in the United States. CSWC has elected to be regulated as a business development company under the 1940 Act. Our common stock currently trades on The Nasdaq Global Select Market under the ticker symbol “CSWC.”

We have elected, and intend to qualify annually, to be treated for U.S. federal income tax purposes as a regulated investment company (“RIC”) under subchapter M of the U.S. Internal Revenue Code of 1986, as amended (the “Code”). As such, we generally will not have to pay U.S. federal income tax at corporate rates on any ordinary income or capital gains that we distribute to our shareholders as dividends. To continue to maintain our RIC tax treatment, we must meet specified source-of-income and asset diversification requirements and timely distribute annually at least 90% of our net ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. We may be subject to U.S. federal income tax and a 4% U.S. federal excise tax on any income that we do not timely distribute to our shareholders. Our U.S. federal income tax liability may be reduced to the extent that we make certain distributions during the following calendar year and satisfy other procedural requirements.

We focus on investing in companies with histories of generating revenues and positive cash flow, established market positions and proven management teams with strong operating discipline. Our core business is to target senior debt investments and equity investments in lower middle market (“LMM”) companies. Our target companies typically have annual earnings before interest, taxes, depreciation and amortization (“EBITDA”) generally between $3.0 million and $25.0 million, and our investments generally range in size from $5.0 million to $50.0 million. We make available significant managerial assistance to the companies in which we invest as we believe that providing managerial assistance to an investee company is critical to its business development activities.

Capital Southwest Equity Investments, Inc. (the “Taxable Subsidiary”), Capital Southwest SPV LLC (“SPV”), Capital Southwest SBIC I, LP (“SBIC I”) and Capital Southwest SBIC II, LP ("SBIC II" and together with SBIC I, the "SBIC Subsidiaries") are wholly owned subsidiaries of the Company and are consolidated in its financial statements. The Taxable Subsidiary was formed to permit us to hold certain interests in portfolio companies that are organized as limited liability companies, or LLCs (or other forms of pass-through entities) and still allow us to satisfy the RIC tax requirement that at least 90% of our gross income for U.S. federal income tax purposes must consist of qualifying investment income. The Taxable Subsidiary has elected to be treated as a corporation for U.S. federal income tax purposes and is subject to U.S. federal income tax at corporate rates based on its taxable income. SPV is a special purpose vehicle that was formed to hold investments for the SPV Credit Facility (as defined below) to support our investment and operating activities.

On April 20, 2021, SBIC I received a license from the U.S. Small Business Administration (the “SBA”) to operate as a small business investment company ("SBIC") under Section 301(c) of the Small Business Investment Act of 1958, as amended. SBIC I has an investment strategy substantially similar to ours and makes similar types of investments in accordance with SBA regulations. SBIC I and its general partner are consolidated for financial reporting purposes under generally accepted accounting principles in the United States ("U.S. GAAP"), and the portfolio investments held by it are included in the consolidated financial statements. Subsequent to the year ended March 31, 2025, the Company received its second SBIC license. See Note 16 - Subsequent Events for more information.

Basis of Presentation

The consolidated financial statements have been prepared in accordance with U.S. GAAP. We meet the definition of an investment company and follow the accounting and reporting guidance in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 946, Financial Services – Investment Companies (“ASC 946”). Under rules and regulations applicable to investment companies, we are generally precluded from consolidating any entity other than another investment company, subject to certain exceptions. One of the exceptions to this general principle occurs if the investment company has an investment in an operating company that provides services to the investment company. Accordingly, the consolidated financial statements include the Taxable Subsidiary, SPV, SBIC I and SBIC II.

Portfolio Investment Classification

We classify our investments in accordance with the requirements of the 1940 Act. Under the 1940 Act, “Control Investments” are generally defined as investments in which we own more than 25% of the voting securities or have greater than 50% representation on its board; “Affiliate Investments” are generally defined as investments in which we own between 5% and 25% of the voting securities, and the investments are not classified as “Control Investments”; and “Non-Control/Non-Affiliate Investments” are generally defined as investments that are neither “Control Investments” nor “Affiliate Investments.”

Under the 1940 Act, a BDC must meet certain requirements, including investing at least 70% of its total assets in qualifying assets. As of March 31, 2025, the Company had 90.0% of its total assets (at fair value) in qualifying assets. The principal categories of qualifying assets relevant to our business are:

(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," 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 Securities and Exchange Commission (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 readily available 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; and

(6)cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.

Additionally, in order to qualify for RIC tax treatment for U.S. federal income tax purposes, we must, among other things meet the following requirements:

(1) continue to maintain our election as a BDC under the 1940 Act at all times during each taxable year;

(2) 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; and

(3) diversify our holdings in accordance with two diversification requirements: (a) diversify our holdings such 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 such 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 (b) diversify our holdings such that 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 Requirements");

The two Diversification Requirements must be satisfied quarterly. If a RIC satisfies the Diversification Requirements for one quarter, and then, due solely to fluctuations in market value, fails to meet one of the Diversification Requirements in the next quarter, it retains RIC tax treatment. A RIC that fails to meet the Diversification Requirements as a result of a non-qualified acquisition may be subject to excess taxes unless the non-qualified acquisition is disposed of and the Diversification Requirements are satisfied within 30 days of the close of the quarter in which the Diversification Requirements are failed.

For the quarter ended March 31, 2025, the Company satisfied all RIC requirements and had 13.9% of its total assets in nonqualified assets according to measurement criteria established in Section 851(d) of the Code.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of significant accounting policies followed in the preparation of the consolidated financial statements of CSWC.

Fair Value Measurements We account for substantially all of our financial instruments at fair value in accordance with ASC Topic 820, Fair Value Measurements and Disclosures(“ASC 820”). ASC 820 defines fair value, establishes a framework used to measure fair value and requires disclosures for fair value measurements, including the categorization of financial instruments into a three-level hierarchy based on the transparency of valuation inputs. ASC 820 requires disclosure of the fair value of financial instruments for which it is practical to estimate such value. We believe that the carrying amounts of our financial instruments such as cash, receivables and payables approximate the fair value of these items due to the short maturity of these instruments. This is considered a Level 1 valuation technique. The carrying value of our credit facilities approximates fair value (Level 3 input). See Note 4 - Fair Value Measurements below for further discussion regarding the fair value measurements and hierarchy.

Investments Investments are stated at fair value and are determined by the Valuation Committee as the Valuation Designee pursuant to Rule 2a-5 under the 1940 Act, subject to the oversight of our Board of Directors, as described in the Notes to the Consolidated Schedule of Investments, Note 3 - Investments and Note 4 - Fair Value Measurements below. Investments are recorded on a trade date basis.

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.

Cash and Cash Equivalents Cash and cash equivalents, which consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase, are carried at cost, which approximates fair value. Cash may be held in a money market fund from time to time, which is a Level 1 security. At March 31, 2025 and March 31, 2024, cash held in money market funds amounted to $28.1 million and $18.8 million, respectively. Cash and cash equivalents includes deposits at financial institutions. We deposit our cash balances in financial institutions and, at times, such balances may be in excess of the Federal Deposit Insurance Corporation (“FDIC”) insurance limits. At March 31, 2025 and March 31, 2024, cash balances totaling $43.1 million and $30.7 million, respectively, exceeded FDIC insurance limits, subjecting us to risk related to the uninsured balance. All of our 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. Restricted cash includes cash that may be restricted due to legal or contractual obligations and is not readily available for general business operations.

Escrow Receivable Escrow receivables are collected in accordance with the terms and conditions of the escrow agreement. Escrow balances are typically distributed over a period greater than one year. Escrow balances are measured for collectability on at least a quarterly basis.

Segment Reporting The Company has determined that it has a single operating segment in accordance with ASC Topic 280, Segment Reporting ("ASC 280"), which derives income from its portfolio investments. Our Chief Executive Officer and Chief Financial Officer together allocate resources and assesses performance and thus together serve as the Company's Chief Operating Decision Maker ("CODM"). As an investment company, we derive income primarily from debt investments in portfolio companies as discussed in Note 3 - Investments. While the Company lends to and separately evaluates the performance of each portfolio company in which it invests, the CODM evaluates and monitors performance of the business on a consolidated basis. Further, each investment is evaluated and managed using similar processes and shared operations support functions such as deal origination, underwriting, loan servicing in addition to the administrative functions of human resources, legal, finance and information technology. The accounting policies of the segment align with those outlined in Note 2 - Summary of Significant Accounting Policies.

The CODM uses net investment income and net increase (decrease) in net assets resulting from operations as reported in the Consolidated Statements of Operations to assess the Company's performance and when allocating resources. These performance metrics are considered the key segment measure of profit or loss received by the CODM. As the Company’s operations comprise of a single reporting segment, the segment assets are reflected on the accompanying Consolidated Statements of Assets and Liabilities as total assets and investments held on the Consolidated Schedules of Investments. The significant segment expenses are listed on the accompanying Consolidated Statements of Operations.

Consolidation As permitted under Regulation S-X and ASC 946, we generally do not consolidate our investment in a portfolio company other than an investment company subsidiary or a controlled operating company whose business consists of providing services to CSWC. Accordingly, we consolidate the results of the Taxable Subsidiary, SPV, SBIC I and SBIC II. All intercompany balances have been eliminated upon consolidation.

Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. We have identified investment valuation and revenue recognition as our most critical accounting estimates.

Interest and Dividend Income Interest and dividend income is recorded on an accrual basis to the extent amounts are expected to be collected. Dividend income is recognized on the date dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. Discounts/premiums received to par on loans purchased are capitalized and accreted or amortized into income over the life of the loan using the effective interest method. In accordance with our valuation policy, accrued interest and dividend income is evaluated quarterly for collectability. When we do not expect the debtor to be able to service all of its debt or other obligations, we generally will establish a reserve against interest income receivable, thereby placing the loan or debt security on non-accrual status, and cease to recognize 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’s status significantly improves regarding its ability to service debt or other obligations, it will be restored to accrual basis. As of March 31, 2025, investments on non-accrual status represented approximately 1.7% of our total investment portfolio at fair value and approximately 3.5% at cost. As of March 31, 2024, investments on non-accrual status represented approximately 2.3% of our total investment portfolio at fair value and approximately 3.9% at cost.

Payment-in-Kind Interest The Company currently holds, and expects to hold in the future, some investments in its portfolio that contain PIK interest provisions. The PIK interest, computed at the contractual rate specified in each loan agreement, is added to the principal balance of the loan, rather than being paid to the Company in cash, and is recorded as interest income. Thus, the actual collection of PIK interest may be deferred until the time of debt principal repayment. PIK interest, which is a non-cash source of income, is included in the Company’s taxable income and therefore affects the amount the Company is required to distribute to shareholders to maintain its qualification as a RIC for U.S. federal income tax purposes, even though the Company has not yet collected the cash. Generally, when current cash interest and/or principal payments on a loan become past due, or if the Company otherwise does not expect the borrower to be able to service its debt and other obligations, the Company will place the investment on non-accrual status and will generally cease recognizing PIK interest income on that loan for financial reporting purposes until all principal and interest have been brought current through payment or due to a restructuring such that the interest income is deemed to be collectible. The Company writes off any accrued and uncollected PIK interest when it is determined that the PIK interest is no longer collectible. For the year ended March 31, 2025, we hadfive investments for which we stopped accruing PIK interest. For the year ended March 31, 2024, we hadfive investments for which we stopped accruing PIK interest. For the years ended March 31, 2025, 2024 and 2023, approximately 6.2%,5.7% and 4.6%, respectively, of CSWC’s total investment income was attributable to non-cash PIK interest income.

Fee Income Recurring fee income, generally collected in advance, includes fees for administration and valuation services rendered by the Company. These fees are typically charged annually and are amortized into income over the year. The Company recognizes nonrecurring fees, including prepayment penalties, waiver fees, arranger fees and amendment fees, as fee income when earned. In addition, the Company also may be entitled to an exit fee that is amortized into income over the life of the loan. Loan exit fees to be paid at the termination of the loan are accreted into fee income over the contractual life of the loan.

Warrants In connection with the Company's debt investments, the Company may receive warrants or other equity-related securities from the borrower. The Company determines the cost basis of warrants based upon their respective fair values on the date of receipt in proportion to the total fair value of the debt and warrants received. Any resulting difference between the face amount of the debt and its recorded fair value resulting from the assignment of value to the warrants is treated as original issue discount (“OID”), and accreted into interest income using the effective interest method over the term of the debt investment.

Debt Issuance Costs Debt issuance costs include commitment fees and other costs related to the Corporate Credit Facility (as defined below), the SPV Credit Facility (as defined below), the Company's unsecured notes (as discussed further in Note 5 - Borrowings) and the debentures guaranteed by the SBA (the "SBA Debentures"). The costs in connection with the Credit Facilities (as defined below) have been capitalized and are amortized into interest expense over the term of the respective credit facility. The costs in connection with the unsecured notes and the SBA Debentures are a direct deduction from the related debt liability and amortized into interest expense over the term of the January 2026 Notes (as defined below), the October 2026 Notes (as defined below), the August 2028 Notes (as defined below), the 2029 Convertible Notes (as defined below) and the SBA Debentures.

Equity Offering Costs Offering costs include SEC registration fees, legal fees and accounting fees incurred. The Company’s offering costs are charged against the proceeds from equity offerings when proceeds are received.

Earnings Per Share The Company's earnings per share ("EPS") amounts have been computed based on the weighted-average number of shares of common stock outstanding for the period under the two-class method. Basic EPS is computed by dividing net increase (decrease) in net assets resulting from operations applicable to common shareholders by the weighted average number of shares of common stock outstanding during the period of computation. Diluted EPS is computed using the if-converted method for convertible debt, which reflects the potential dilution that would occur if all of the notes were converted as of the beginning of the reporting period (or the date of issuance, if later). The if-converted method is computed by dividing the net increase (decrease) in net assets resulting from operations (adjusted to reverse any recognized interest expense), by the weighted average number of shares of common stock assuming all potential shares had been converted, and the additional shares of common stock were dilutive. In accordance with ASC 260-10-45-60A, the Company uses the two-class method in the computation of basic EPS and diluted EPS. The unvested shares of restricted stock awarded pursuant to CSWC’s equity compensation plans are considered participating securities for the purpose of calculating basic and diluted earnings per share.

Realized Losses on Extinguishment of Debt Upon the repayment of debt obligations that are deemed to be extinguishments, the difference between the principal amount due at maturity adjusted for any unamortized debt issuance costs is recognized as a loss (i.e., the unamortized debt issuance costs and any "make-whole" premium payment) are recognized as a loss upon extinguishment of the underlying debt obligation).

Leases The Company is obligated under an operating lease pursuant to which it is leasing an office facility from a third party with a remaining term of approximately 10.5 years. The operating lease is included as an operating lease right-of-use ("ROU") asset, included in other assets, and operating lease liability, included in other liabilities, in the accompanying Consolidated Statements of Assets and Liabilities. The Company does not have any financing leases.

The ROU asset represents the Company’s right to use an underlying asset for the lease term and the operating lease liability represents the Company’s obligation to make lease payments arising from such lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the remaining lease term. The Company’s lease does not provide an implicit discount rate, and as such the Company uses its incremental borrowing rate based on the information available at the commencement date in determining the present value of the remaining lease payments. Lease expense is recognized on a straight-line basis over the remaining lease term.

Federal Income Taxes CSWC has elected, and intends to qualify annually, to be treated for U.S. federal income tax purposes as a RIC under subsection M of the Code. By meeting these requirements, we will not be subject to U.S. federal income taxes at corporate rates on ordinary income or capital gains timely distributed to shareholders. In order to qualify as a RIC, the Company is required to timely distribute to its shareholders at least 90% of investment company taxable income, as defined by the Code, each year. Investment company taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Investment company taxable income generally excludes net unrealized appreciation or depreciation, as investment gains and losses are not included in investment company taxable income until they are realized.

Depending on the level of taxable income or capital gains earned in a tax year, we may choose to carry forward taxable income or capital gains in excess of current year distributions into the next year and pay a 4% U.S. federal excise tax on such income. Any such carryover taxable income or capital gains must be distributed through a dividend declared on or prior to the later of (1) the filing of the U.S. federal income tax return for the applicable fiscal year and (2) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

In lieu of distributing our net capital gains for a year, we may decide to retain some or all of our net capital gains. We will be required to pay a 21% corporate rate U.S. federal income tax on any such retained net capital gains. We may elect to treat such retained capital gain as a deemed distribution to shareholders. Under such circumstances, shareholders will be required to include their share of such retained capital gain in income, but will receive a credit for the amount of U.S. federal income tax paid at corporate rates with respect to their shares. As an investment company that qualifies as a RIC, federal income taxes payable on security gains that we elect to retain are accrued only on the last day of our tax year, December 31. Any net capital gains actually distributed to shareholders and properly reported by us as capital gain dividends are generally taxable to the shareholders as long-term capital gains. See Note 6 - Income Taxes for further discussion.

The Taxable Subsidiary, a wholly-owned subsidiary of CSWC, is not a RIC and is subject to U.S. federal income tax at the corporate rate of 21%. For tax purposes, the Taxable Subsidiary has elected to be treated as a taxable entity, and therefore is not consolidated for tax purposes and is taxed at normal corporate tax rates based on taxable income and, as a result of its activities, may generate an income tax provision or benefit. The taxable income, or loss, of the Taxable Subsidiary may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. This income tax provision, or benefit, if any, and the related tax assets and liabilities, are reflected in our consolidated financial statements.

Management evaluates tax positions taken or expected to be taken in the course of preparing the Company’s consolidated financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions with respect to tax at the CSWC level not deemed to meet the “more-likely-than-not” threshold would be recorded as an expense in the current year. Management’s conclusions regarding tax positions will be subject to review and may be adjusted at a later date based on factors including, but not limited to, on-going analyses of tax laws, regulations and interpretations thereof. The Company has concluded that it does not have any uncertain tax positions that meet the recognition of measurement criteria of ASC Topic 740, Income Taxes, ("ASC 740") for the current period. Also, we account for interest and, if applicable, penalties for any uncertain tax positions as a component of income tax provision. No interest or penalties expense was recorded during the years ended March 31, 2025, 2024 and 2023.

Deferred Taxes Deferred tax assets and liabilities are recorded for losses or income at the Taxable Subsidiary using statutory tax rates. A valuation allowance is provided 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. ASC 740 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. See Note 6 - Income Taxes for further discussion.

Stock-Based Compensation We account for our share-based compensation using the fair value method, as prescribed by ASC Topic 718, Compensation – Stock Compensation. Accordingly, we recognize share-based compensation cost on a straight-line basis for all share-based payments awards granted to employees. For restricted stock awards, we measure the fair value based upon the market price of our common stock on the date of the grant. For restricted stock awards, we amortize this fair value to share-based compensation expense over the vesting term. We recognize forfeitures as they occur.

The right to grant restricted stock awards under the 2010 Plan terminated on July 18, 2021, ten years after the date that the 2010 Restricted Stock Award Plan (the “2010 Plan”) was approved by the Company’s shareholders pursuant to its terms. In connection with the termination of the 2010 Plan, the Board of Directors and shareholders approved the Capital Southwest Corporation 2021 Employee Restricted Stock Award Plan (the "2021 Employee Plan"), which became effective on July 28, 2021, as part of the compensation package for its employees, the terms of which are, in all material respects, identical to the 2010 Plan. On July 19, 2021, we received an exemptive order that supersedes the prior exemptive order relating to the 2010 Plan (the “Order”) to permit the Company to (i) issue restricted stock as part of the compensation package for its employees in the 2021 Employee Plan, and (ii) withhold shares of the Company’s common stock or purchase shares of the Company’s common stock from the participants to satisfy tax withholding obligations relating to the vesting of restricted stock pursuant to the 2021 Employee Plan. In addition, the Board of Directors and shareholders approved the Capital Southwest Corporation 2021 Non-Employee Director Restricted Stock Plan (the "Non-Employee Director Plan"), which became effective on July 27, 2022, as part of the compensation package for non-employee directors of the Board of Directors. In connection therewith, on May 16, 2022, we received an exemptive order that supersedes the Order (the "Superseding Order") and covers both employees and non-employee directors of the Board of Directors.

Shareholder Distributions Distributions to common shareholders are recorded on the ex-dividend date. The amount of distributions, if any, is determined by the Board of Directors each quarter and is generally based upon the earnings estimated by management. Net realized capital gains, if any, generally are distributed, although the Company may decide to retain such capital gains for investment.

Presentation Presentation of certain amounts in the consolidated financial statements and notes to the consolidated financial statements for the prior year comparative consolidated financial statements and notes to the consolidated financial statements are updated to conform to the current period presentation.

Recently Issued or Adopted Accounting Standards In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures," which was issued to enhance the transparency and decision usefulness of income tax disclosures, including an annual requirement to (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold. The new guidance is effective for annual periods beginning after December 15, 2024. The Company has evaluated the impact of the new standard on the Company's consolidated financial statements and related disclosures and does not believe it will have a material impact on its consolidated financial statements or its disclosures.

In November 2024, the FASB issued ASU 2024-03, "Disaggregation of Income Statement Expenses," which requires additional disclosure of the nature of expenses included in the income statement in response to requests from investors for more information about an entity's expenses. The new standard requires disaggregation of certain expense captions into specified categories in disclosures within the footnotes to the financial statements. The new guidance is effective for annual periods beginning after December 15, 2027. The Company is currently evaluating the impact of the new standard on the Company's consolidated financial statements and related disclosures and does not believe it will have a material impact on its consolidated financial statements or its disclosures.

3. INVESTMENTS

The following table shows the composition of the investment portfolio, at fair value and cost (with corresponding percentage of total portfolio investments) as of March 31, 2025 and March 31, 2024:

1 Included in first lien loans are loans structured as first lien last out loans. These loans may, in certain cases, be subordinated in payment priority to other senior secured lenders. As of March 31, 2025 and March 31, 2024, the fair value of the first lien last out loans are $23.4 million and $35.3 million, respectively.

2 Included in first lien loans and second lien loans are loans structured as split lien term loans. These loans provide the Company with a first lien priority on certain assets of the obligor and a second lien priority on different assets of the obligor. As of March 31, 2025 and March 31, 2024, the fair value of the split lien term loans included in first lien loans was $59.9 million and $43.7 million, respectively. As of March 31, 2025 and March 31, 2024, the fair value of the split lien term loans included in second lien loans was $15.9 million and $20.7 million, respectively.

3 Included in subordinated debt are unsecured convertible notes with a fair value of $0.2 million and $0.4 million as of March 31, 2025 and March 31, 2024, respectively.

The following tables show the composition of the investment portfolio by industry, at fair value and cost (with corresponding percentage of total portfolio investments) as of March 31, 2025 and March 31, 2024:

The following tables summarize the composition of the investment portfolio by geographic region of the United States, at fair value and cost (with corresponding percentage of total portfolio investments), as of March 31, 2025 and March 31, 2024:

4. FAIR VALUE MEASUREMENTS

Investment Valuation Process

Pursuant to Rule 2a-5 under the 1940 Act, the Board of Directors has designated the Valuation Committee comprised of certain officers of the Company as the Valuation Designee to determine the fair value of the Company's investments that do not have readily available market quotations, subject to the oversight of the Board of Directors. The valuation process is led by the valuation team and the Valuation Committee in conjunction with the investment team. The process includes a quarterly review of each investment by our valuation team and the Valuation Committee. Valuations of each portfolio security are prepared quarterly by the valuation team using updated financial and other operational information collected from the investment team. In conjunction with the internal valuation process, the Valuation Committee also has engaged multiple independent consulting firms specializing in financial due diligence, valuation, and business advisory services to provide third-party valuation reviews and an independent range of values for selected investments, which is presented to the Valuation Committee.

CSWC also uses a standard internal investment rating system in connection with its investment oversight, portfolio management, and investment valuation procedures for its debt portfolio. This system takes into account both quantitative and qualitative factors of the portfolio company and the investments held therein.

There is no single standard for determining fair value in good faith, as fair value depends upon the specific circumstances of each individual investment. While management believes our valuation methodologies are appropriate and consistent with market participants, the recorded fair values of our investments may differ significantly from fair values that would have been used had an active market for the securities existed. In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the valuations currently assigned.

Fair Value Hierarchy

CSWC has established and documented processes for determining the fair values of portfolio company investments on a recurring basis in accordance with the 1940 Act and ASC 820. Asrequired 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). CSWC conducts reviews of fair value hierarchy classifications on a quarterly basis. We also use judgment and consider factors specific to the investment in determining the significance of an input to a fair value measurement.

The three levels of valuation inputs established by ASC 820 are as follows:

•Level 1: Investments whose values are based on unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2: Investments whose values are based on quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

•Level 3: Investments whose values are based on unobservable inputs that are significant to the overall fair value measurement.

As of March 31, 2025 and March 31, 2024,100% of CSWC's investment portfolio consisted of privately held debt and equity instruments for which inputs falling within the categories of Level 1 and Level 2 are generally not readily available. Therefore, the Valuation Committee determines the fair value of our investments in good faith using Level 3 inputs, pursuant to CSWC's valuation policy and procedures subject to the oversight of the Board of Directors.

Investment Valuation Inputs

ASC 820 defines fair value in terms of the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date excluding transaction costs. Under ASC 820, the fair value measurement also assumes that the transaction to sell an asset occurs in the principal market for the asset or, in the absence of a principal market, the most advantageous market for the asset. The principal market is the market in which the reporting entity would sell or transfer the asset with the greatest volume and level of activity for the asset. In determining the principal market for an asset or liability under ASC 820, it is assumed that the reporting entity has access to the market as of the measurement date.

The Level 3 inputs to CSWC’s valuation process reflect our best estimate of the assumptions that would be used by market participants in pricing the investment in a transaction in the principal or most advantageous market for the asset.

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;

•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);

•indicative dealer quotations from brokers, banks, and other market participants;

•market yields on other securities of similar risk;

•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.

CSWC uses several different valuation approaches depending on the security type including the Market Approach, the Income Approach, and the Enterprise Value Waterfall Approach.

Market Approach

Market Approach is a qualitative and quantitative analysis of the aforementioned unobservable inputs. It is a combination of the Enterprise Value Waterfall Approach and Income Approach as described in detail below. For investments recently originated (within a quarterly reporting period) or where the value has not departed significantly from its cost, we generally rely on our cost basis or recent transaction price to determine the fair value, unless a material event has occurred since origination.

Income Approach

In valuing debt securities, CSWC typically uses an Income Approach model, which considers some or all of the factors listed above. Under the Income Approach, CSWC develops an expectation of the yield that a hypothetical market participant would require when purchasing each debt investment (the “Required Market Yield”). The Required Market Yield is calculated in a two-step process. First, using quarterly market data we estimate the current market yield of similar debt securities. Next, based on the factors described above, we modify the current market yield for each security to produce a unique Required Market Yield for each of our investments. The resulting Required Market Yield is the significant Level 3 input to the Income Approach model. If, with respect to an investment, the unobservable inputs have not fluctuated significantly from the date the investment was made or have not fluctuated significantly from CSWC’s expectations on the date the investment was made, and there have been no significant fluctuations in the market pricing for such investments, we may conclude that the Required Market Yield for that investment is equal to the stated rate on the investment. In instances where CSWC determines that the Required Market Yield is different from the stated rate on the investment, we discount the contractual cash flows on the debt instrument using the Required Market Yield in order to estimate the fair value of the debt security.

In addition, under the Income Approach, CSWC also determines the appropriateness of the use of third-party broker quotes, if any, as a significant Level 3 input in determining fair value. In determining the appropriateness of the use of third-party broker quotes, CSWC evaluates the level of actual transactions used by the broker to develop the quote, whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes, the source of the broker quotes, and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. To the extent sufficient observable inputs are available to determine fair value, CSWC may use third-party broker quotes or other independent pricing to determine the fair value of certain debt investments.

Fair value measurements using the Income Approach model can be sensitive to significant changes in one or more of the inputs. A significant increase (decrease) in the Required Market Yield for a particular debt security may result in a lower (higher) fair value for that security. A significant increase (decrease) in a third-party broker quote for a particular debt security may result in a higher (lower) value for that security.

Enterprise Value Waterfall Approach

In valuing equity securities (including warrants), CSWC estimates fair value using an Enterprise Value Waterfall valuation model. CSWC estimates the enterprise value of a portfolio company and then allocates the enterprise value to the portfolio company’s securities in order of their relative liquidation preference. In addition, CSWC assumes that any outstanding debt or other securities that are senior to CSWC’s equity securities are required to be repaid at par. Additionally, we may estimate the fair value of non-performing debt securities using the Enterprise Value Waterfall approach as needed.

To estimate the enterprise value of the portfolio company, CSWC uses a weighted valuation model based on public comparable companies, observable transactions and discounted cash flow analyses. A main input into the valuation model is a measure of the portfolio company’s financial performance, which generally is either earnings before interest, taxes, depreciation and amortization, as adjusted (“Adjusted EBITDA”) or revenues. In addition, we consider other factors, including, but not limited to: (1) offers from third parties to purchase the portfolio company; and (2) the implied value of recent investments in the equity securities of the portfolio company. For certain non-performing assets, we may utilize the liquidation or collateral value of the portfolio company's assets in our estimation of its enterprise value.

The significant Level 3 inputs to the Enterprise Value Waterfall model are (1) an appropriate multiple derived from the comparable public companies and transactions, (2) discount rate assumptions used in the discounted cash flow model and (3) a measure of the portfolio company’s financial performance, which generally is either Adjusted EBITDA or revenues. Inputs can be based on historical operating results, projections of future operating results or a combination thereof. The operating results of a portfolio company may be unaudited, projected or pro forma financial information and may require adjustments for certain non-recurring items. CSWC also may consult with the portfolio company’s senior management to obtain updates on the portfolio company’s performance, including information such as industry trends, new product development, loss of customers and other operational issues. Fair value measurements using the Enterprise Value Waterfall model can be sensitive to significant changes in one or more of the inputs. A significant increase (decrease) in either the multiple, Adjusted EBITDA or revenues for a particular equity security would result in a higher (lower) fair value for that security.

The following fair value hierarchy tables set forth our investment portfolio by level as of March 31, 2025 and March 31, 2024 (in thousands):

The tables below present the Valuation Techniques and Significant Level 3 Inputs (ranges and weighted averages) used in the valuation of CSWC’s debt and equity securities at March 31, 2025 and March 31, 2024. Significant Level 3 Inputs were weighted by the relative fair value of the investments. The tables are not intended to be all inclusive, but instead capture the significant unobservable inputs relevant to our determination of fair value.

Changes in Fair Value Levels

We monitor the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy. Changes in economic conditions or model based valuation techniques may require the transfer of financial instruments from one fair value level to another. During the years ended March 31, 2025 and 2024, we had no transfers between fair value levels.

The following tables provide a summary of changes in the fair value of investments measured using Level 3 inputs during the year ended March 31, 2025 and 2024 (in thousands):

1 Includes purchases of new investments, as well as discount accretion on existing investments.

2 Included are distributions-in-kind of investments received in connection with the dissolution and liquidation of I-45 SLF LLC ("I-45 SLF"). See Note 14 - Related Party Transactions for more information.

3 Includes $3.8 million of cost basis allocated from first lien debt to warrants.

5. BORROWINGS

In accordance with the 1940 Act, effective April 25, 2019, the Company is only allowed to borrow amounts such that its asset coverage (i.e., the ratio of assets less liabilities not represented by senior securities to senior securities such as borrowings), calculated pursuant to the 1940 Act, is at least 150% after such borrowing. The Board of Directors also approved a resolution that limits the Company’s issuance of senior securities such that the asset coverage ratio, taking into account any such issuance, would not be less than 166%, which became effective April 25, 2019. On August 11, 2021, we received an exemptive order from SEC to permit us to exclude the senior securities issued by the SBIC Subsidiaries from the definition of senior securities in the asset coverage requirement applicable to the Company under the 1940 Act. As of March 31, 2025, the Company’s asset coverage was 211%.

The Company had the following borrowings outstanding as of March 31, 2025 and March 31, 2024 (amounts in thousands):

(1)The unamortized debt issuance costs for the Corporate Credit Facility and the SPV Credit Facility are reflected as "Debt issuance costs" on the Consolidated Statements of Assets and Liabilities.

(2)Each estimated fair value for the SBA Debentures, the January 2026 Notes, the October 2026 Notes and the 2029 Convertible Notes is a Level 3 fair value measurement under ASC 820 based on a valuation model using a discounted cash flow analysis. The estimated fair value of the August 2028 Notes is based on the closing price of the security on The Nasdaq Global Select Market, which is a Level 1 input under ASC 820. The estimated fair value of the Corporate Credit Facility and the SPV Credit Facility approximates its recorded value due to its variable interest rate.

Credit Facilities

As of March 31, 2025, the Company had in placeone revolving credit facility andone special purpose vehicle financing facility, the Corporate Credit Facility and the SPV Facility, respectively (each defined below and together, the "Credit Facilities"). For the year ended March 31, 2025, the weighted average interest rate on the Credit Facilities was 7.33%, and the average debt outstanding under the Credit Facilities was $269.8 million.

Corporate Credit Facility

In August 2016, CSWC entered into a senior secured revolving credit facility (the “Corporate Credit Facility”) to provide additional liquidity to support its investment and operational activities.

On August 2, 2023, the Company entered into the Third Amended and Restated Senior Secured Revolving Credit Agreement (as amended or otherwise modified from time to time, including the Amendment (as defined below), the "Credit Agreement"). Borrowings under the Corporate Credit Facility accrue interest at a rate equal to the applicable Adjusted Term SOFR plus 2.15% per annum. The Credit Agreement (1) increased commitments under the Corporate Credit Facility from $400 million to $435 million from a diversified group of lenders; (2) added an uncommitted accordion feature that could increase the maximum commitments up to $750 million; (3) extended the end of the Corporate Credit Facility's revolving period from August 9, 2025 to August 2, 2027 and extended the final maturity from August 9, 2026 to August 2, 2028; and (4) amended several financial covenants.

On December 7, 2023, the Company entered into an Incremental Commitment and Assumption Agreement that increased the total commitments under the accordion feature of the Credit Agreement by $25 million, which increased total commitments from $435 million to $460 million. The $25 million increase was provided by one new lender, bringing the total bank syndicate toten participants.

On March 1, 2024, the Company entered into Amendment No. 1 to the Credit Agreement (the "Amendment"). The Amendment amends the Credit Agreement and other related loan documents to, among other things, permit the Company to enter into special purpose vehicle financings and exclude assets held by any such special purpose vehicle from the assets pledged as collateral securing the Corporate Credit Facility.

On September 12, 2024, the Company entered into an Incremental Commitment and Assumption Agreement that increased the total commitments under the accordion feature of the Credit Agreement by $25 million, which increased total commitments from $460 million to $485 million. The $25 million increase was provided by one new lender, bringing the total bank syndicate to 11 participants.

CSWC pays unused commitment fees of 0.50% to 1.00% per annum, based on utilization, on the unused lender commitments under the Corporate Credit Facility. The Corporate Credit Facility contains certain affirmative and negative covenants, including but not limited to: (1) certain reporting requirements; (2) maintaining RIC and BDC status; (3) maintaining a minimum senior coverage ratio of 2.00 to 1; (4) maintaining a minimum shareholders’ equity; (5) maintaining a minimum consolidated net worth; (6) maintaining a regulatory asset coverage of not less than 150%; and (7) maintaining an interest coverage ratio of at least 2.00 to 1.

The Credit Agreement also contains customary events of default, including, without limitation, nonpayment, misrepresentation of representations and warranties in a material respect, breach of covenant, bankruptcy, and change of control, with customary cure and notice provisions. If the Company defaults on its obligations under the Credit Agreement, the lenders may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests.

The Corporate Credit Facility is secured by (1) all of the present and future property and assets of the Company and the guarantors and (2) 100% of the equity interests in certain of the Company’s wholly-owned subsidiaries (except for the assets held by the SBIC Subsidiaries and SPV). As of March 31, 2025, all of the Company’s assets were pledged as collateral for the Corporate Credit Facility, except for assets held by the SBIC Subsidiaries and SPV. As of March 31, 2025 and 2024, CSWC was in compliance with all financial covenants under the Credit Agreement.

The summary information regarding the Corporate Credit Facility is as follows (dollars in thousands):

SPV Credit Facility

On March 20, 2024, SPV entered into a Loan Financing and Servicing Agreement (the “Loan Agreement”) for a special purpose vehicle financing credit facility (the “SPV Credit Facility”) to provide additional liquidity to support its investment and operational activities. The SPV Credit Facility included an initial commitment of $150.0 million. Pursuant to the terms of the Loan Agreement, on June 20, 2024, total commitments automatically increased from $150.0 million to $200.0 million. The SPV Credit Facility also includes an accordion feature that allows increases up to $400 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments. Borrowings under the SPV Credit Facility bear interest at three-month Term SOFR plus 2.50% per annum during the revolving period ending on March 20, 2027 and three-month Term SOFR plus an applicable margin of 2.85% thereafter. SPV (i) paid unused commitment fees of 0.10% through April 20, 2024 and (ii) pays unused commitment fees of 0.35% thereafter, on the unused lender commitments under the SPV Credit Facility, in addition to other customary fees. Under the SPV Credit Facility, SPV also pays a utilization fee based on the amount of borrowings utilized. The SPV Credit Facility matures on March 20, 2029.

The Loan Agreement contains customary terms and conditions, including affirmative and negative covenants. The Loan Agreement also contains customary events of default including, without limitation, nonpayment, misrepresentation of representations and warranties in a material respect, breach of covenant, bankruptcy, and change of control, with customary cure and notice provisions.

The SPV Credit Facility is secured by all of the assets of SPV. As of March 31, 2025, SPV was in compliance with all financial covenants under the Loan Agreement.

The summary information regarding the SPV Credit Facility is as follows (dollars in thousands):

Unsecured Notes

The unsecured notes described below are the direct unsecured obligations of the Company, rank pari passu with the Company's other outstanding and future unsecured unsubordinated indebtedness and are effectively or structurally subordinated to all of the Company's existing and future secured indebtedness, including borrowings under the Credit Facilities and the SBA Debentures.

January 2026 Notes

In December 2020, the Company issued $75.0 million in aggregate principal amount of 4.50% Notes due 2026 (the "Existing January 2026 Notes"). The Existing January 2026 Notes were issued at par. In February 2021, the Company issued an additional $65.0 million in aggregate principal amount of the January 2026 Notes (the "Additional January 2026 Notes" together with the Existing January 2026 Notes, the "January 2026 Notes"). The Additional January 2026 Notes were issued at a price of 102.11% of the aggregate principal amount of the Additional January 2026 Notes, resulting in a yield-to-maturity of approximately 4.0% at issuance. The Additional January 2026 Notes were treated as a single series with the Existing January 2026 Notes under the indenture and had the same terms as the Existing January 2026 Notes. The maturity date of the January 2026 Notes was January 31, 2026, and the January 2026 Notes bore interest at a rate of 4.50% per year, payable semi-annually on January 31 and July 31 of each year.

On December 9, 2024, the Company redeemed $140.0 million in aggregate principal amount of the issued and outstanding January 2026 Notes in full. The January 2026 Notes were redeemed at 100% of their principal amount, plus the accrued and unpaid interest thereon, through, but excluding the redemption date. Accordingly, the Company recognized a realized loss on extinguishment of debt, equal to the write-off of the related unamortized debt issuance costs, of $0.4 million during the quarter ended December 31, 2024. There was no "make-whole" premium required to be paid in connection with the redemption.

The summary information regarding the January 2026 Notes is as follows (dollars in thousands):

1 Average borrowings for the year ended March 31, 2025 was calculated from April 1, 2024 through December 9, 2024 (the redemption date of the January 2026 Notes).

October 2026 Notes

In August 2021, the Company issued $100.0 million in aggregate principal amount of 3.375% Notes due 2026 (the "Existing October 2026 Notes"). The Existing October 2026 Notes were issued at a price of 99.418% of the aggregate principal amount of the Existing October 2026 Notes, resulting in a yield-to-maturity of 3.5%. In November 2021, the Company issued an additional $50.0 million in aggregate principal amount of the October 2026 Notes (the "Additional October 2026 Notes" together with the Existing October 2026 Notes, the "October 2026 Notes"). The Additional October 2026 Notes were issued at a price of 99.993% of the aggregate principal amount, resulting in a yield-to-maturity of approximately 3.375% at issuance. The Additional October 2026 Notes are treated as a single series with the Existing October 2026 Notes under the indenture and have the same terms as the Existing October 2026 Notes. The October 2026 Notes mature on October 1, 2026 and may be redeemed in whole or in part at any time prior to July 1, 2026, at par plus a "make-whole" premium, and thereafter at par. The October 2026 Notes bear interest at a rate of 3.375% per year, payable semi-annually in arrears on April 1 and October 1 of each year.

The summary information regarding the October 2026 Notes is as follows (dollars in thousands):

The indenture governing the October 2026 Notes contains certain covenants, including certain covenants requiring the Company to comply with Section 18(a)(1)(A) as modified by Section 61(a)(2) of the 1940 Act, or any successor provisions, whether or not the Company continues to be subject to such provisions of the 1940 Act, but giving effect, in either case, to any exemptive relief granted to the Company by the SEC, to comply with Section 18(a)(1)(B) as modified by Section 61(a)(2) of the 1940 Act, or any successor provisions, after giving effect to any exemptive relief granted to the Company by the SEC and subject to certain other exceptions, and to provide financial information to the holders of the October 2026 Notes and the trustee under the indenture if the Company is no longer subject to the reporting requirements under the Exchange Act. These covenants are subject to important limitations and exceptions that are described in the indenture and the fourth supplemental indenture relating to the October 2026 Notes.

In addition, holders of the October 2026 Notes can require the Company to repurchase some or all of the October 2026 Notes at a purchase price equal to 100% of their principal amount, plus accrued and unpaid interest to, but not including, the repurchase date upon the occurrence of a “Change of Control Repurchase Event,” as defined in the fourth supplemental indenture relating to the October 2026 Notes.

August 2028 Notes

In June 2023, the Company issued approximately $71.9 million in aggregate principal amount, including the underwriters' full exercise of their option to purchase an additional $9.4 million in aggregate principal amount to cover over-allotments, of 7.75% notes due 2028 (the "August 2028 Notes"). The August 2028 Notes mature on August 1, 2028 and may be redeemed in whole or in part at any time, or from time to time, at the Company’s option on or after August 1, 2025. The August 2028 Notes bear interest at a rate of 7.75% per year, payable quarterly on February 1, May 1, August 1 and November 1 of each year. The August 2028 Notes are listed on the Nasdaq Global Select Market under the trading symbol "CSWCZ."

The summary information regarding the August 2028 Notes is as follows (dollars in thousands):

1 Average borrowings for the year ended March 31, 2024 was calculated from June 14, 2023 (the issuance date of the August 2028 Notes) through March 31, 2024.

The indenture governing the August 2028 Notes contains certain covenants, including certain covenants requiring the Company to comply with Section 18(a)(1)(A) as modified by Section 61(a)(2) of the 1940 Act, or any successor provisions, whether or not the Company continues to be subject to such provisions of the 1940 Act, but giving effect, in either case, to any exemptive relief granted to the Company by the SEC, to comply with Section 18(a)(1)(B) as modified by Section 61(a)(2) of the 1940 Act, or any successor provisions, after giving effect to any exemptive relief granted to the Company by the SEC and subject to certain other exceptions, and to provide financial information to the holders of the August 2028 Notes and the trustee under the indenture if the Company is no longer subject to the reporting requirements under the Exchange Act. These covenants are subject to important limitations and exceptions that are described in the indenture and the fifth supplemental indenture relating to the August 2028 Notes.

2029 Convertible Notes

On November 4, 2024, the Company issued $230.0 million in aggregate principal amount of 5.125% convertible notes due 2029 (the "2029 Convertible Notes"), including the underwriters' full exercise of their option to purchase an additional $30.0 million in aggregate principal amount to cover over-allotments. The 2029 Convertible Notes bear interest at a rate of 5.125% per year, payable quarterly on February 15, May 15, August 15 and November 15 of each year. The 2029 Convertible Notes will mature on November 15, 2029, unless earlier converted, redeemed or repurchased.

At any time prior to the close of business on the business day immediately preceding November 15, 2029, holders may convert all or any portion of their 2029 Convertible Notes. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of its common stock, or a combination of cash and shares of its common stock, at the Company's election. The conversion rate was initially 40.0000 shares of common stock per $1,000 principal amount of 2029 Convertible Notes (equivalent to an initial conversion price of $25.00 per share of common stock). The conversion rate is subject to adjustment upon certain events, such as share splits and combinations, mergers, tender or exchange offers, increases in dividends in excess of $0.58 per share per quarter for the 2029 Convertible Notes and certain changes in control. In no event will the total number of shares of common stock issuable upon conversion exceed 44.7828 per $1,000 principal amount of the 2029 Convertible Notes. The Company has determined that the embedded conversion option in the 2029 Convertible Notes is not required to be separately accounted for as a derivative under GAAP.

In addition, following certain corporate events that occur prior to the maturity date of the 2029 Convertible Notes or if the Company delivers a notice of redemption, the Company will, in certain circumstances, increase the conversion rate for a holder who elects to convert its 2029 Convertible Notes in connection with such a corporate event or notice of redemption, as the case may be.

Certain key terms related to the convertible features of the 2029 Convertible Notes as of March 31, 2025 are as follows:

(1)Represents conversion price and conversion rate, as applicable, as of March 31, 2025, taking into account any applicable de minimis adjustments that will be made on the conversion date.

The Company may redeem for cash all or any portion of the 2029 Convertible Notes (subject to the partial redemption limitation), at its option, on a redemption date on or after November 20, 2027 and on or before the 45th scheduled trading day immediately prior to the maturity date of the 2029 Convertible Notes if the last reported sale price of its common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which it provides notice of redemption at a redemption price equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

As reflected in Note 8 - Earnings Per Share, the issuance of the 2029 Convertible Notes is considered part of the if-converted method for calculation of diluted earnings per share.

The summary information regarding the 2029 Convertible Notes is as follows (dollars in thousands):

1 Average borrowings for the year ended March 31, 2025 was calculated from November 4, 2024 (the issuance date of the 2029 Convertible Notes) through March 31, 2025.

SBA Debentures

On April 20, 2021, SBIC I received a license from the SBA to operate as an SBIC under Section 301(c) of the Small Business Investment Act of 1958, as amended. The license allows SBIC I to obtain leverage by issuing SBA Debentures, subject to the issuance of a leverage commitment by the SBA. SBA Debentures are loans issued to an SBIC which have interest payable semi-annually and aten-year maturity. The interest rate is fixed shortly after issuance at a market-driven spread over U.S. Treasury Notes withten-year maturities. Interest on SBA Debentures is payable semi-annually on March 1 and September 1. Current statutes and regulations permit SBIC I to borrow up to $175 million in SBA Debentures with at least $87.5 million in regulatory capital (as defined in the SBA regulations).

On May 25, 2021, SBIC I received a leverage commitment from the SBA in the amount of $40.0 million to be issued on or prior to September 30, 2025. On January 28, 2022, SBIC I received an additional leverage commitment in the amount of $40.0 million to be issued on or prior to September 30, 2026. On November 22, 2022, SBIC I received an additional leverage commitment in the amount of $50.0 million to be issued on or prior to September 30, 2027. On December 20, 2023, SBIC I received an additional leverage commitment in the amount of $45.0 million to be issued on or prior to September 30, 2028. The SBA may limit the amount that may be drawn each year under these commitments, and each issuance of leverage is conditioned on SBIC I's full compliance, as determined by the SBA, with the terms and conditions set forth in the SBA regulations. As of March 31, 2025, SBIC I had regulatory capital of $87.5 million and leverageable capital of $87.5 million. As of March 31, 2025, SBIC I had a total leverage commitment from the SBA in the amount of $175.0 million, all of which was drawn.

The summary information regarding the SBA Debentures is as follows (dollars in thousands):

As of March 31, 2025, SBIC I's issued and outstanding SBA Debentures mature as follows (amounts in thousands):

(1)The SBA hastwo scheduled pooling dates for SBA Debentures (in March and in September). Certain SBA Debentures funded during the reporting periods may not be pooled until the subsequent pooling date.

Contractual Payment Obligations

A summary of the Company's contractual payment obligations for the repayment of outstanding indebtedness at March 31, 2025 is as follows:

6. INCOME TAXES

We have elected, and intend to qualify annually, to be treated for U.S. federal income tax purposes as a RIC under subchapter M of the Code and have a tax year end of December 31. In order to qualify as a RIC, we must annually distribute at least 90% of our investment company taxable income, as defined by the Code, to our shareholders in a timely manner. Investment company income generally includes net short-term capital gains but excludes net long-term capital gains. A RIC is not subject to federal income tax on the portion of its ordinary income and capital gains that is distributed to its shareholders, including “deemed distributions” as discussed below. As part of maintaining RIC tax treatment, undistributed taxable income and capital gain, which is 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 (1) the extended due date of the U.S. federal income tax return for the applicable fiscal year and (2) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

For the tax years ended December 31, 2024, 2023 and 2022, CSWC qualified for RIC tax treatment. We intend to meet the applicable qualifications to be taxed as a RIC in future periods. However, the Company’s ability to meet certain portfolio diversification requirements of RICs in future years may not be controllable by the Company.

We have distributed or intend to distribute sufficient dividends to eliminate taxable income for our completed tax years. If we fail to satisfy the 90% distribution requirement or otherwise fail to qualify as a RIC in any tax year, we would be subject to tax in that year on all of our taxable income, regardless of whether we made any distributions to our shareholders. During the quarter ended March 31, 2025, CSWC declared and paid a quarterly dividend in the amount of $33.7 million, or $0.64 per share ($0.58 per share in regular dividends and $0.06 per share in supplemental dividends). Our distributions for the tax years ended December 31, 2024, 2023 and 2022 were as follows:

1. On each of these dates, the dividend paid included a supplemental dividend of $0.06 per share.

2. On each of these dates, the dividend paid included a supplemental dividend of $0.05 per share.

3. On June 30, 2022, the dividend paid included a special dividend of $0.15 per share.

Book and tax basis differences relating to dividends and distributions to our shareholders and other permanent book and tax differences are typically reclassified among the CSWC’s capital accounts. In addition, the character of income and gains to be distributed is determined in accordance with income tax regulations that may differ from U.S. GAAP; accordingly, for the years ended March 31, 2025 and 2024, CSWC reclassified for book purposes amounts arising from permanent book/tax differences related to the tax treatment of return of capital and/or deemed distributions, tax treatment of investments upon disposition, and non-deductible expenses, as follows (amounts in thousands):

The determination of the tax attributes for CSWC’s distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Therefore, any determination made on an interim basis is forward-looking based on currently available facts, rules and assumptions and may not be representative of the actual tax attributes of distributions determined at tax year end.

For tax purposes, the 2024 dividends totaled $2.53 per share and were comprised entirely of ordinary income. In addition,92.89% of each of the ordinary distributions represent interest-related dividends.92.89% of total distributions represent the portion of CSWC's dividends received by non-U.S. residents and foreign corporation shareholders that are generally exempt from U.S. withholding tax. For tax purposes, the 2023 dividends totaled $2.42 per share and were comprised entirely of ordinary income. In addition,94.17% represent interest-related dividends.

Ordinary dividend distributions from a RIC do not qualify for the 20% maximum tax rate 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, but may also include qualified dividends or return of capital.

The tax character of distributions paid for the tax years ended December 31, 2024 and 2023 was as follows (amounts in thousands):

1 Includes only those distributions which reduce estimated taxable income.

As of March 31, 2025, CSWC estimates that it has cumulative undistributed taxable income of approximately $41.6 million, or $0.79 per share, that will be carried forward toward distributions to be paid in future periods. We intend to meet the applicable qualifications to be taxed as a RIC in future periods.

The following reconciles net increase in net assets resulting from operations to estimated RIC taxable income for the year ended March 31, 2025 and 2024:

1 The calculation of taxable income for each period is an estimate and will not be finally determined until the Company files its tax return each year. Final taxable income may be different than this estimate.

2 At March 31, 2025, the Company had long-term capital loss carryforwards of $131.0 million to offset future capital gains. These capital loss carryforwards are not subject to expiration.

3 Includes only those distributions which reduce estimated distributable income.

As of March 31, 2025, 2024 and 2023, the components of estimated RIC accumulated earnings on a tax basis were as follows (amounts in thousands):

A RIC may elect to retain all or a portion of its net capital gains by designating them as a “deemed distribution” to its shareholders and paying a federal tax on the net capital gains for the benefit of its shareholders. Shareholders then report their share of the retained capital gains on their income tax returns as if it had been received and report a tax credit for tax paid on their behalf by the RIC. Shareholders then add the amount of the “deemed distribution” net of such tax to the basis of their shares.

In addition, the Taxable Subsidiary holds a portion of one or more of our portfolio investments that are listed on the Consolidated Schedule of Investments. The Taxable Subsidiary is consolidated for financial reporting purposes in accordance with U.S. GAAP, so that our consolidated financial statements reflect our investments in the portfolio companies owned by the Taxable Subsidiary. The purpose of the Taxable Subsidiary is to permit us to hold certain interests in portfolio companies that are organized as limited liability companies, or LLCs (or other forms of pass-through entities) and still satisfy the RIC tax requirement that at least 90% of our gross income for U.S. federal income tax purposes must consist of qualifying investment income. Absent the Taxable Subsidiary, a proportionate amount of any gross income of a partnership or LLC (or other pass-through entity) portfolio investment would flow through directly to us. To the extent that our income did not consist of investment income, it could jeopardize our ability to qualify as a RIC and therefore cause us to incur significant amounts of U.S. federal income taxes at corporate rates. Where interests in LLCs (or other pass-through entities) are owned by the Taxable Subsidiary, however, the income from those interests is taxed to the Taxable Subsidiary and does not flow through to us, thereby helping us preserve our RIC tax treatment and resultant tax advantages. The Taxable Subsidiary is not consolidated for U.S. federal income tax purposes and may generate an income tax provision as a result of their ownership of the portfolio companies. The income tax provision, or benefit, and the related tax assets and liabilities, if any, are reflected in our Consolidated Statement of Operations.

As of March 31, 2025, the cost of investments held by the RIC for U.S. federal income tax purposes was $1,718.8 million, with such investments having gross unrealized appreciation of $15.3 million and gross unrealized depreciation of $95.6 million, resulting in net unrealized depreciation of $80.3 million. As of March 31, 2025, the cost of investments held by the Taxable Subsidiary for U.S. federal income tax purposes was $57.3 million, with such investments having gross unrealized appreciation of $102.1 million and gross unrealized depreciation of $12.6 million, resulting in net unrealized appreciation of $89.5 million. On a consolidated basis, the total investment portfolio has net unrealized appreciation of $9.2 million for U.S. federal income tax purposes.

The Taxable Subsidiary is not a RIC and is subject to U.S. federal income tax at the current corporate rate. For tax purposes, the Taxable Subsidiary has elected to be treated as a taxable entity, and therefore is not consolidated for tax purposes and is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate an income tax provision or benefit.

The taxable income, or loss, of the Taxable Subsidiary may differ from book income, or loss, due to temporary book and tax timing differences and permanent differences. This income tax provision, or benefit, if any, and the related tax assets and liabilities, are reflected in our consolidated financial statements. The Taxable Subsidiary records valuation adjustments related to its investments on a quarterly basis. Deferred taxes related to the unrealized gain/loss on investments are also recorded on a quarterly basis. A valuation allowance is provided 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. Establishing a valuation allowance of a deferred tax asset requires management to make estimates related to expectations of future taxable income. As of March 31, 2025 and March 31, 2024, the Taxable Subsidiary had a deferred tax liability of $16.8 million and $12.0 million, respectively.

Based on our assessment of our unrecognized tax benefits, management believes that all benefits will be realized and they do not contain any uncertain tax positions.

The following table sets forth the significant components of the deferred tax assets and liabilities as of March 31, 2025 and March 31, 2024 (amounts in thousands):

The income tax provision, or benefit, and the related tax assets and liabilities, generated by CSWC and the Taxable Subsidiary, if any, are reflected in CSWC’s consolidated financial statements. The following table sets forth the significant components of income tax provision as of March 31, 2025 and 2024 (amounts in thousands):

Although we believe our tax returns are correct, the final determination of tax examinations could be different from what was reported on the returns. In our opinion, we have made adequate tax provisions for years subject to examination. Generally, we are currently open to audit under the statute of limitations by the Internal Revenue Service as well as state taxing authorities for the years ended December 31, 2021 through December 31, 2023.

7. SHAREHOLDERS' EQUITY

Equity ATM Program

On March 4, 2019, the Company established the Equity ATM Program, pursuant to which the Company may offer and sell, from time to time through sales agents, shares of its common stock having an aggregate offering price of up to $50.0 million. On February 4, 2020, the Company (i) increased the maximum amount of shares of its common stock to be sold through the Equity ATM Program to $100.0 million from $50.0 million and (ii) addedtwo additional sales agents to the Equity ATM Program. On May 26, 2021, the Company (i) increased the maximum amount of shares of its common stock to be sold through the Equity ATM Program to $250.0 million from $100.0 million and (ii) reduced the commission paid to the sales agents for the Equity ATM Program to 1.5% from 2.0% of the gross sales price of shares of the Company's common stock sold through the sales agents pursuant to the Equity ATM Program on and after May 26, 2021. On August 2, 2022, the Company increased the maximum amount of shares of its common stock to be sold through the Equity ATM Program to $650.0 million from $250.0 million. On May 21, 2024, the Company (i) increased the maximum amount of shares of its common stock to be sold through the Equity ATM Program to $1.0 billion from $650.0 million and (ii) amended the term "Settlement Date" to reflect that, on or after May 28, 2024, the settlement of shares will occur on the first trading day following the date on which such sales were made.

The following table summarizes certain information relating to shares sold under the Equity ATM Program:

1 Net proceeds reflects proceeds after deducting commissions to the sales agents on shares sold. As of both March 31, 2025 and March 31, 2024, no proceeds remained receivable.

Cumulative to date, the Company has sold 33,041,177 shares of its common stock under the Equity ATM Program at a weighted-average price of $21.49, raising $710.0 million of gross proceeds. Net proceeds were $699.0 million after commissions to the sales agents on shares sold. As of March 31, 2025, the Company has $290.0 million available under the Equity ATM Program.

Share Repurchases

Restricted Stock Awards

The right to grant restricted stock awards under the 2010 Plan terminated on July 18, 2021, ten years after the date that the 2010 Plan was approved by the Company’s shareholders pursuant to its terms. In connection with the termination of the 2010 Plan, the Board of Directors and shareholders approved the 2021 Employee Plan, which became effective on July 28, 2021, as part of the compensation package for its employees, the terms of which are, in all material respects, identical to the 2010 Plan. On July 19, 2021, we received an exemptive order that supersedes the prior exemptive order relating to the 2010 Plan (the “Order”) to permit the Company to (i) issue restricted stock as part of the compensation package for its employees in the 2021 Employee Plan, and (ii) withhold shares of the Company’s common stock or purchase shares of the Company’s common stock from the participants to satisfy tax withholding obligations relating to the vesting of restricted stock pursuant to the 2021 Employee Plan.

In addition, the Board of Directors and shareholders approved the Capital Southwest Corporation 2021 Non-Employee Director Restricted Stock Plan (the "Non-Employee Director Plan"), which became effective on July 27, 2022, as part of the compensation package for non-employee directors of the Board of Directors. In connection therewith, on May 16, 2022, we received an exemptive order that supersedes the Order (the "Superseding Order") and covers both employees and non-employee directors of the Board of Directors.

The following table summarizes certain information relating to shares repurchased in connection with the vesting of restricted stock awards:

Share Repurchase Program

On July 28, 2021, the Board of Directors approved a share repurchase program authorizing the Company to repurchase up to $20 million of its outstanding shares of common stock in the open market at certain thresholds below its NAV per share, in accordance with guidelines specified in Rules 10b5-1(c)(1)(i)(B) and 10b-18 under the Exchange Act. On August 31, 2021, the Company entered into a share repurchase agreement, which became effective immediately, and the Company will cease purchasing its common stock under the share repurchase program upon the earlier of, among other things: (1) the date on which the aggregate price for all shares purchased under the share repurchase program equals $20 million including, without limitation, all applicable fees, costs and expenses; or (2) upon written notice by the Company to the broker that the share repurchase agreement is terminated. During the years ended March 31, 2025 and 2024, the Company did not repurchase any shares under the share repurchase program.

8. EARNINGS PER SHARE

The following information sets forth the computation of the Company's basic and diluted net increase in net assets per share resulting from operations for the years ended March 31, 2025 and 2024 (dollars and shares in thousands):

(1)In applying the if-converted method, conversion is not assumed for purposes of computing diluted earnings per share if the effect would be anti-dilutive. For the years ended March 31, 2025, 2024 and 2023, there was no anti-dilution.

9. STOCK BASED COMPENSATION PLANS

Under the 2010 Plan and the 2021 Employee Plan, a restricted stock award is an award of shares of our common stock, which have full voting and dividend rights but are restricted with regard to sale or transfer. Restricted stock awards are independent of stock grants and are generally subject to forfeiture if employment terminates prior to these restrictions lapsing. Unless otherwise specified in the award agreement, these shares vest in equal annual installments over afour-year period from the grant date and are expensed over the vesting period starting on the grant date.

The right to grant restricted stock awards under the 2010 Plan terminated on July 18, 2021, ten years after the date that the 2010 Plan was approved by the Company’s shareholders pursuant to its terms.

In connection with the termination of the 2010 Plan, the Board of Directors and shareholders approved the 2021 Employee Plan as part of the compensation packages for its employees, the terms of which are, in all material respects, identical to the 2010 Plan. The 2021 Employee Plan makes available for issuance 1,200,000 shares of common stock. As of March 31, 2025, there are 458,142 shares of common stock available for issuance under the 2021 Employee Plan.

In addition, the Board of Directors and shareholders approved the Non-Employee Director Plan as part of the compensation package for non-employee directors of the Board of Directors. Under the Non-Employee Director Plan, at the beginning of eachone-year term of service on our Board, each non-employee director will receive a number of shares equivalent to $50,000 based on the market value at the close of the Nasdaq Global Select Market on the date of grant. These shares will vestone year from the date of the grant and are expensed over theone-year term of non-employee directors. The Non-Employee Director Plan makes available for issuance 120,000 shares of common stock. As of March 31, 2025, there were 86,245 shares of common stock available for issuance under the Non-Employee Director Plan.

We expense the cost of the restricted stock awards, which is determined to equal the fair value of the restricted stock award at the date of grant on a straight-line basis over the requisite service period. For these purposes, the fair value of the restricted stock award is determined based upon the closing price of our common stock on the date of the grant.

For the years ended March 31, 2025, 2024 and 2023, we recognized total share based compensation expense of $7.0 million (of which $0.3 million was related to restricted stock issued to non-employee directors), $4.5 million (of which $0.3 million was related to restricted stock issued to non-employee directors), and $3.7 million (of which $0.2 million was related to restricted stock issued to non-employee directors), respectively, related to the restricted stock issued.

During the three months ended March 31, 2025, the Company modified restricted stock awards to accelerate vesting of the unvested awards as of the separation date for one employee. The Company accounted for this as a modification of awards and recognized incremental compensation cost of $1.9 million. The incremental compensation cost is measured as the excess of the fair value of the modified award over the fair value of the original award immediately before its terms were modified and recognized as compensation cost on the date of modification for vested awards.

As of March 31, 2025, the total remaining unrecognized compensation expense related to non-vested restricted stock awards was $8.7 million, which will be amortized over the weighted-average vesting period of approximately 2.4 years.

The following table summarizes the restricted stock outstanding under the 2010 Plan and the 2021 Employee Plan as of March 31, 2025:

The following table summarizes the restricted stock outstanding under the Non-Employee Director Plan as of March 31, 2025:

10. OTHER EMPLOYEE COMPENSATION

We established a 401(k) plan (the “401K Plan”) effective October 1, 2015. All full-time employees of CSWC are eligible to participate in the 401K Plan. The 401K Plan permits employees to defer a portion of their total annual compensation up to the Internal Revenue Service annual maximum based on age and eligibility. We made contributions to the 401K Plan of up to 4.5% of the Internal Revenue Service’s annual maximum eligible compensation, all of which is fully vested immediately. During the years ended March 31, 2025, 2024 and 2023, we made matching contributions of approximately $0.3 million, $0.2 million and $0.2 million, respectively.

11. RETIREMENT PLANS

CSWC sponsors an unfunded Retirement Restoration Plan, which is a nonqualified plan. Unvested accrued benefits under the Retirement Restoration Plan were forfeited as of September 30, 2015. The Retirement Restoration Plan is a frozen plan under which no new service cost is being accrued by plan participants.

The following tables set forth the Retirement Restoration Plan’s net pension benefit and benefit obligation amounts for the years ended March 31, 2025, 2024 and 2023, as well as amounts recognized in our Consolidated Statements of Assets and Liabilities at March 31, 2025 and 2024 (amounts in thousands):

The corridor approach is used to amortize the actuarial gains or losses based on 10% of the projected benefit obligation.

The following assumptions were used in estimating the actuarial present value of the projected benefit obligations:

The following assumptions were used in estimating the net periodic (income)/expense:

Following are the expected benefit payments for the next five years and in the aggregate for the years 2031-2035 (amounts in thousands):

12. COMMITMENTS AND CONTINGENCIES

Commitments

In the normal course of business, the Company is a party to financial instruments with off-balance sheet risk, consisting primarily of unused commitments to extend financing to the Company’s portfolio companies. Because commitments may expire without being drawn upon, the total commitment amount does not necessarily represent future cash requirements. Additionally, our commitment to fund delayed draw term loans generally is triggered upon the satisfaction of certain pre-negotiated terms and conditions, such as meeting certain financial performance hurdles or financial covenants, which may limit a borrower's ability to draw on such delayed draw term loans.

The balances of unfunded debt commitments as of March 31, 2025 and March 31, 2024 were as follows (amounts in thousands):

The following table provides additional information regarding the expiration year of the Company’s unfunded debt commitments (amounts in thousands):

The balances of unfunded equity commitments as of March 31, 2025 and March 31, 2024 were as follows (amounts in thousands):

As of March 31, 2025, total revolving and delayed draw loan commitments included commitments to issue letters of credit through a financial intermediary on behalf of certain portfolio companies. As of March 31, 2025, the Company had $0.9 million in letters of credit issued and outstanding under these commitments on behalf of portfolio companies. For all of these letters of credit issued and outstanding, the Company would be required to make payments to third parties if the portfolio companies were to default on their related payment obligations. Of these letters of credit, $0.4 million expire in February 2026, $0.3 million expire in March 2026, and $0.2 million expire in April 2026. As of March 31, 2025, none of the letters of credit were drawn and as such, were not recorded as a liability on the Company's balance sheet.

In March 2021, the Company executed an agreement to lease office space that commenced on February 1, 2022 and expires September 30, 2035, including thethree-year extension pursuant to the amendment described below. The Company identified the foregoing as an operating lease. ASC 842 indicates that an ROU asset and lease liability should be recorded based on the effective date. As such, CSWC recorded an ROU asset, which is included in "Other assets" on the Consolidated Statements of Assets and Liabilities, and a lease liability, which is included in "Other liabilities" on the Consolidated Statements of Assets and Liabilities, as of February 1, 2022. The Company has recorded lease expense on a straight-line basis.

In December 2023, the Company executed an agreement to lease additional office space, which commenced on October 1, 2024 and expires on September 30, 2035. The additional office space is approximately 7,100 square feet. This is an amendment of the Company's current lease, which is classified as an operating lease.

Total lease expense incurred for the years ended March 31, 2025, 2024 and 2023 was $0.5 million, $0.3 million and $0.3 million, respectively. As of March 31, 2025 and March 31, 2024, the asset related to the operating lease was $3.9 million and $2.4 million, respectively, and as of March 31, 2025 and March 31, 2024, the lease liability was $5.4 million and $3.2 million, respectively. As of March 31, 2025, the remaining lease term was 10.5 years and the discount rate was 6.59%.

The following table shows future minimum payments under the Company's operating leases as of March 31, 2025 (in thousands):

Contingencies

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 try to seek to impose liability on us in connection with the activities of our portfolio companies. To our knowledge, we have no currently pending material legal proceedings to which we are party or to which any of our assets are subject.

13. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

The following presents a summary of the unaudited quarterly consolidated financial information for the years ended March 31, 2025 and 2024 (in thousands except per share amounts):

14. RELATED PARTY TRANSACTIONS

As a BDC, we are obligated under the 1940 Act to make available to our portfolio companies significant managerial assistance. “Making available significant managerial assistance” refers to any arrangement whereby we offer to provide significant guidance and counsel concerning the management, operations, or business objectives and policies of a portfolio company. We also are deemed to be providing managerial assistance to all portfolio companies that we control, either by ourselves or in conjunction with others. The nature and extent of significant managerial assistance provided by us will vary according to the particular needs of each portfolio company. During each of the years ended March 31, 2025, 2024 and 2023, we did not receive any management fees from our portfolio companies.

During the quarter ended March 31, 2024, the board of managers of I-45 SLF approved the dissolution and liquidation of I-45 SLF and the wind up of its affairs, including distributing all of the assets of I-45 SLF to the Company and Main Street Capital Corporation in accordance with their respective residual percentage. In connection with the paydown of I-45 SLF's credit facility, the members of I-45 SLF made additional capital commitments totaling $47.0 million, of which $37.6 million was contributed by the Company. On January 24, 2024, I-45 SLF paid down the full outstanding balance and terminated its credit facility.

In connection with the liquidation of I-45 SLF, the Company received return of capital distributions totaling $13.6 million, of which $0.8 million was receivable as of March 31, 2024. During the six months ended September 30, 2024, the remaining $0.8 million return of capital distributions were received by the Company. During the three months ended June 30, 2024 and March 31, 2024, the Company received $6.4 million and $72.5 million, respectively, of distributions-in-kind of investment assets for a total of $78.9 million. For the year ended March 31, 2025, the Company recognized a realized loss totaling $0.3 million relating to the dissolution of I-45 SLF.

15. SUMMARY OF PER SHARE INFORMATION

The following presents a summary of per share data for the years ended March 31, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018 and 2017 (share amounts presented in thousands).

1 Based on weighted average of common shares outstanding for the period.

2 Reflects impact of the different share amounts as a result of issuance or forfeiture of restricted stock during the period.

3 Net decrease is due to the exercise of employee stock options at prices less than beginning of period net asset value.

4 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. The balance increases with the increase in variability of shares outstanding throughout the year due to share issuance and repurchase activity.

5 Total investment return based on 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 CSWC’s dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

6 Total return based on change in NAV was calculated using the sum of ending NAV plus dividends to shareholders and other non-operating changes during the period, as divided by the beginning NAV, and has not been annualized.

16. SUBSEQUENT EVENTS

On April 9, 2025, the Company entered into Incremental Commitment and Assumption Agreements that increased the total commitments under the accordion feature of the Corporate Credit Facility by $25 million, which increased total commitments from $485 million to $510 million. The $25 million increase was provided bytwo existing lenders.

On April 17, 2025, SBIC II received a license from the SBA to operate as an SBIC under Section 301(c) of the Small Business Investment Act of 1958, as amended. The license will allow SBIC II to obtain leverage by issuing SBA Debentures, subject to the issuance of a leverage commitment by the SBA. Current SBA regulations permit SBIC II to borrow up to $175 million in SBA Debentures with at least $87.5 million in regulatory capital.

On April 25, 2025, the Board of Directors declared a total dividend of $0.64 per share, comprised of a regular dividend of $0.58 and a supplemental dividend of $0.06, for the quarter ending June 30, 2025. The record date for the dividend is June 13, 2025. The payment date for the dividend is June 30, 2025.

SCHEDULE 12-14

Schedule of Investments in and Advances to Affiliates

(In thousands)

(1)The principal amount and ownership detail as shown in the Consolidated Schedules of Investments.

(2)Represents the total amount of interest or dividends credited to income for the portion of the year an investment was included in the Control or Affiliate categories, respectively.

(3)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments, accrued PIK interest, and accretion of OID. Gross additions also include 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 movement of an existing portfolio company out of this category and into a different category.

(5)The schedule does not reflect realized gains or losses on escrow receivables for investments which were previously exited and were not held during the period presented. Gains and losses on escrow receivables are classified in the Consolidated Statements of Operations according to the control classification at the time the investment was exited.