Sixth Street Specialty Lending, Inc.

Notes to Consolidated Financial Statements

(Amounts in thousands, unless otherwise indicated)

1. Organization and Basis of Presentation

Organization

Sixth Street Specialty Lending, Inc. (the “Company”) is a Delaware corporation formed on July 21, 2010. The Company was formed primarily to lend to, and selectively invest in, middle-market companies in the United States. The Company has elected to be regulated as a business development company (“BDC”) under the 1940 Act. In addition, for tax purposes, the Company has elected to be treated as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). The Company is managed by Sixth Street Specialty Lending Advisers, LLC (the “Adviser”). On June 1, 2011, the Company formed a wholly-owned subsidiary, TC Lending, LLC, a Delaware limited liability company. On March 22, 2012, the Company formed a wholly-owned subsidiary, Sixth Street SL SPV, LLC, a Delaware limited liability company. On May 19, 2014, the Company formed a wholly-owned subsidiary, Sixth Street SL Holding, LLC, a Delaware limited liability company. On December 9, 2020, the Company formed a wholly-owned subsidiary, Sixth Street Specialty Lending Sub, LLC, a Cayman Islands limited liability company.

On March 21, 2014, the Company completed its initial public offering (“IPO”) and the Company’s shares began trading on the New York Stock Exchange (“NYSE”) under the symbol “TSLX.”

Basis of Presentation

The accompanying consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”), and include the accounts of the Company and its subsidiaries. In the opinion of management, all adjustments considered necessary for the fair presentation of the consolidated financial statements for the periods presented have been included. The results of operations for interim periods are not indicative of results to be expected for the full year. All intercompany balances and transactions have been eliminated in consolidation.

Certain financial information that is normally included in annual financial statements, including certain financial statement footnotes, prepared in accordance with U.S. GAAP, is not required for interim reporting purposes and has been condensed or omitted herein. These consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and notes related thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the Securities and Exchange Commission (“SEC”), on February 13, 2025.

The Company is an investment company and, therefore, applies the specialized accounting and reporting guidance in Accounting Standards Codification (“ASC”) Topic 946, Financial Services – Investment Companies.

Fiscal Year End

The Company’s fiscal year ends on December 31.

2. Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual amounts could differ from those estimates and such differences could be material.

Cash and Cash Equivalents

Cash and cash equivalents may consist of demand deposits, highly liquid investments (e.g., money market funds, U.S. Treasury notes, and similar type instruments) with original maturities of three months or less, and restricted cash pledged as collateral for certain centrally cleared derivative instruments. Cash and cash equivalents denominated in U.S. dollars are carried at cost, which approximates fair value. The Company deposits its cash and cash equivalents with highly-rated banking corporations and, at times, cash deposits may exceed the insured limits under applicable law.

Investments at Fair Value

Loan originations are recorded on the date of the binding commitment, which is generally the funding date. Investment transactions purchased through the secondary markets are recorded on the trade date. Realized gains or losses are measured by the difference between the net proceeds received (excluding prepayment fees, if any) and the amortized cost basis of the investment without regard to unrealized gains or losses previously recognized, and include investments charged off during the period, net of recoveries. The net change in unrealized gains or losses primarily reflects the change in investment values and also includes the reversal of previously recorded unrealized gains or losses with respect to investments realized during the period.

Investments for which market quotations are readily available are typically valued at those market quotations. To validate market quotations, the Company utilizes a number of factors to determine if the quotations are representative of fair value, including the source and number of the quotations. Debt and equity securities that are not publicly traded or whose market prices are not readily available, as is the case for substantially all of our investments, are valued at fair value as determined in good faith by the Company’s Board of Directors (the “Board”), based on, among other things, the input of the Adviser, the Company’s Audit Committee and independent third-party valuation firms engaged at the direction of the Board.

As part of the valuation process, the Board takes into account relevant factors in determining the fair value of our investments, including and in combination of: the estimated enterprise value of a portfolio company (that is, the total value of the portfolio company’s net debt and equity), the nature and realizable value of any collateral, the portfolio company’s ability to make payments based on its earnings and cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company’s securities to any similar publicly traded securities, and overall changes in the interest rate environment and the credit markets that may affect the price at which similar investments may be made in the future. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, the Board considers whether the pricing indicated by the external event corroborates its valuation.

The Board undertakes a multi-step valuation process, which includes, among other procedures, the following:

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The valuation process begins with each investment being initially valued by the investment professionals responsible for the portfolio investment in conjunction with the portfolio management team.

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The Adviser’s management reviews the preliminary valuations with the investment professionals. Agreed upon valuation recommendations are presented to the Audit Committee.

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The Audit Committee reviews the valuations presented and recommends values for each investment to the Board.

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The Board reviews the recommended valuations and determines the fair value of each investment; valuations that are not based on readily available market quotations are valued in good faith based on, among other things, the input of the Adviser, Audit Committee and, where applicable, other third parties including independent third-party valuation firms engaged at the direction of the Board.

The Company conducts this valuation process on a quarterly basis.

The Board has engaged independent third-party valuation firms to perform certain limited procedures that the Board has identified and requested them to perform in connection with the valuation process of investments for which no market quotations are readily available. At September 30, 2025, the independent third-party valuation firms performed their procedures over substantially all of the Company’s investments. Upon completion of such limited procedures, the third-party valuation firms concluded that the fair value, as determined by the Board, of those investments subjected to their limited procedures, appeared reasonable.

The Company applies Financial Accounting Standards Board Accounting Standards Codification Topic 820, Fair Value Measurement(“ASC Topic 820”), as amended, which establishes a framework for measuring fair value in accordance with U.S. GAAP and required disclosures of fair value measurements. ASC Topic 820 determines fair value to be the price that would be received for an investment in a current sale, which assumes an orderly transaction between market participants on the measurement date. Market participants are defined as buyers and sellers in the principal or most advantageous market (which may be a hypothetical market) that are independent, knowledgeable, and willing and able to transact. In accordance with ASC Topic 820, the Company considers its principal market to be the market that has the greatest volume and level of activity. ASC Topic 820 specifies a fair value hierarchy that prioritizes and ranks the level of observability of inputs used in determination of fair value. In accordance with ASC Topic 820, these levels are summarized below:

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Level 1—Valuations based on quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.

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Level 2—Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.

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Level 3—Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

Transfers between levels, if any, are recognized at the beginning of the quarter in which the transfers occur. In addition to using the above inputs in investment valuations, the Company applies the valuation policy approved by its Board that is consistent with ASC Topic 820. Consistent with the valuation policy, the Company evaluates the source of inputs, including any markets in which its investments are trading (or any markets in which securities with similar attributes are trading), in determining fair value. When a security is valued based on prices provided by reputable dealers or pricing services (that is, broker quotes), the Company subjects those prices to various additional criteria in making the determination as to whether a particular investment would qualify for treatment as a Level 2 or Level 3 investment. For example, the Company reviews pricing provided by dealers or pricing services in order to determine if observable market information is being used, versus unobservable inputs. Some additional factors considered include the number of prices obtained as well as an assessment as to their quality, such as the depth of the relevant market relative to the size of the Company’s position.

Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period. Additionally, the fair value of such investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that may ultimately be realized. Further, such investments are generally less liquid than publicly traded securities and may be subject to contractual and other restrictions on resale. If the Company were required to liquidate a portfolio investment in a forced or liquidation sale, it could realize amounts that are different from the amounts presented and such differences could be material.

In addition, changes in the market environment including the impact of changes in broader market indices and credit spreads 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 unrealized gains or losses reflected herein.

Financial and Derivative Instruments

The Company recognizes all derivative instruments as assets or liabilities at fair value in its consolidated financial statements, pursuant to ASC Topic 815 Derivatives and Hedging, further clarified by the FASB’s issuance of the Accounting Standards Update (“ASU”) No. 2017-12, Derivatives and Hedging, which was adopted in 2019 by the Company. For all derivative instruments designated in a hedge accounting relationship, the entire change in the fair value of the hedging instrument shall be recorded in the same line item of the Consolidated Statements of Operations as the hedged item. The Company uses certain interest rate swaps as derivative instruments to hedge the Company’s fixed rate debt, and therefore both the periodic payment and the change in fair value for the effective hedge, if applicable, will be recognized as components of interest expense in the Consolidated Statements of Operations. For derivative contracts entered into by the Company that are not designated in a hedge accounting relationship, the Company presents changes in the fair value through current period earnings.

In the normal course of business, the Company has commitments and risks resulting from its investment transactions, which may include those involving derivative instruments. Derivative instruments are measured in terms of the notional contract amount and derive their value based upon one or more underlying instruments. While the notional amount gives some indication of the Company’s derivative activity, it generally is not exchanged, but is only used as the basis on which interest and other payments are exchanged. Derivative instruments are subject to various risks similar to non-derivative instruments including market, credit, liquidity, and operational risks. The Company manages these risks on an aggregate basis as part of its risk management process.

Derivatives, including the Company’s interest rate swaps, for which broker quotes are available are typically valued at those broker quotes.

Offsetting Assets and Liabilities

Foreign currency forward contract and interest rate swap receivables or payables pending settlement are offset, and the net amount is included with receivable or payable for foreign currency forward contracts or interest rate swaps in the Consolidated Balance Sheets when, and only when, they are with the same counterparty, the Company has the legal right to offset the recognized amounts, and it intends to either settle on a net basis or realize the asset and settle the liability simultaneously.

Foreign Currency

Foreign currency amounts are translated into U.S. dollars on the following basis:

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cash and cash equivalents, market value of investments, outstanding debt on revolving credit facilities, other assets and liabilities: at the spot exchange rate on the last business day of the period; and

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purchases and sales of investments, borrowings and repayments of such borrowings, income and expenses: at the rates of exchange prevailing on the respective dates of such transactions.

Although net assets and fair values are presented based on the applicable foreign exchange rates described above, the Company does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in fair values of investments held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. The Company’s current approach to hedging the foreign currency exposure in its non-U.S. dollar denominated investments is primarily to borrow the par amount in local currency under the Company’s Revolving Credit Facility to fund these investments. Fluctuations arising from the translation of foreign currency borrowings are included with the net change in unrealized gains (losses) on translation of assets and liabilities in foreign currencies on the Consolidated Statements of Operations.

Investments denominated in foreign currencies and foreign currency transactions may involve certain considerations and risks not typically associated with those of domestic origin, including unanticipated movements in the value of the foreign currency relative to the U.S. dollar.

Equity Offering Expenses

The Company records expenses related to equity offerings as a reduction of capital upon completion of an offering of registered securities. The costs associated with renewals of the Company’s shelf registration statement are expensed as incurred.

Debt Issuance Costs

The Company records origination and other expenses related to its debt obligations as deferred financing costs, which are presented as a direct deduction from the carrying value of the related debt liability. These expenses are deferred and amortized using the effective interest method, or straight-line method, over the stated maturity of the debt obligation.

Interest and Dividend Income Recognition

Interest income is recorded on an accrual basis and includes the amortization of discounts and premiums. Discounts and premiums to par value on securities purchased or originated are amortized into interest income over the contractual life of the respective security using the effective interest method. The amortized cost of investments represents the original cost adjusted for the amortization of discounts and premiums, if any.

Unless providing services in connection with an investment, such as syndication, structuring or diligence, all or a portion of any loan fees received by the Company will be deferred and amortized over the investment’s life using the effective interest method.

Loans are generally placed on non-accrual status when principal or interest payments are past due 30 days or more or when management has reasonable doubt that the borrower will pay principal or interest in full. Accrued and unpaid interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest has been paid and, in management’s judgment, the borrower is likely to make principal and interest payments in the future. Management may determine to not place a loan on non-accrual status if, notwithstanding any failure to pay, the loan has sufficient collateral value and is in the process of collection.

Dividend income on preferred equity securities is recorded on an accrual basis to the extent that such amounts are payable by the portfolio company and are expected to be collected. Dividend income on common equity securities is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly-traded portfolio companies.

Other Income

From time to time, the Company may receive fees for services provided to portfolio companies by the Adviser. The services that the Adviser provides vary by investment, but may include syndication, structuring, arranger, diligence fees, or other service-based fees and fees for providing managerial assistance to our portfolio companies and are recognized as revenue when earned.

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. Basic EPS is computed by dividing net increase (decrease) in net assets resulting from operations by the weighted average number of shares of common stock outstanding during the period. Diluted EPS is computed by dividing net increase (decrease) in net assets resulting from operations by the weighted average number of shares of common stock assuming all potential shares had been issued and the additional shares of common stock were dilutive. Diluted EPS reflects the potential dilution, using the if-converted method for convertible debt, which could occur if all potentially dilutive securities were exercised.

Reimbursement of Transaction-Related Expenses

The Company may receive reimbursement for certain transaction-related expenses in pursuing investments. Transaction-related expenses, which are expected to be reimbursed by third parties, are typically deferred until the transaction is consummated and are recorded in Prepaid expenses and other assets on the date incurred. The transaction-related costs of pursuing investments not otherwise reimbursed are borne by the Company and for successfully completed investments included as a component of the investment’s cost basis.

Cash advances received in respect of transaction-related expenses are recorded as Cash and cash equivalents with an offset to Other liabilities or Other payables to affiliates. Other liabilities or Other payables to affiliates are relieved as reimbursable expenses are incurred.

Income Taxes, Including Excise Taxes

The Company has elected to be treated as a RIC under Subchapter M of the Code, and the Company intends to operate in a manner so as to continue to qualify for the tax treatment applicable to RICs. To qualify as a RIC, the Company must, among other things, distribute to its stockholders in each taxable year generally at least 90% of its investment company taxable income, as defined by the Code, and net tax-exempt income for that taxable year. To maintain its RIC status, the Company, among other things, has made and intends to continue to make the requisite distributions to its stockholders, which generally relieves the Company from corporate-level U.S. federal income taxes.

The Company evaluates tax positions taken or expected to be taken in the course of preparing its financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions not deemed to meet the “more-likely-than-not” threshold are reserved and recorded as a tax benefit or expense in the current year. All penalties and interest associated with income taxes are included in income tax expense. Conclusions regarding tax positions are 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.

Depending on the level of taxable income earned in a tax year, the Company can be expected to carry forward taxable income (including net capital gains, if any) in excess of current year dividend distributions from the current tax year into the next tax year and pay a nondeductible 4% U.S. federal excise tax on such taxable income, as required. To the extent that the Company determines that the estimated current year annual taxable income will be in excess of estimated current year dividend distributions from such income, the Company accrues excise tax on estimated excess taxable income.

For the three and nine months ended September 30, 2025, the Company recorded a net expense of$1.4 million and$4.0 million, respectively, for U.S. federal excise tax and other taxes. For the three and nine months ended September 30, 2024, the Company recorded a net expense of $0.7 million and $2.8 million, respectively, for U.S. federal excise tax and other taxes.

For the three and nine months ended September 30, 2025, the Company recorded a deferred tax benefit of $0.6 million pertaining to net unrealized losses and recognized a tax expense of $0.9 million pertaining to net realized gains. For the three and nine months ended September 30, 2024, the Company recorded a deferred tax expense of $1.5 million pertaining to net unrealized gains, related to eight of its investments.

Dividends to Common Stockholders

Dividends to common stockholders are recorded on the record date. The amount to be paid out as a dividend is determined by the Board and is generally based upon the earnings estimated by the Adviser. Net realized long-term capital gains, if any, would generally be distributed at least annually, although the Company may decide to retain such capital gains.

The Company has adopted a dividend reinvestment plan that provides for reinvestment of any dividends declared in cash on behalf of stockholders, unless a stockholder elects to receive cash. As a result, if the Board authorizes, and it declares, a cash dividend, then the stockholders who have not “opted out” of the dividend reinvestment plan will have their cash dividends automatically reinvested in additional shares of the Company’s common stock, rather than receiving the cash dividend. The Company expects to use newly issued shares to satisfy the dividend reinvestment plan.

Segment Reporting

The Company has one reportable segment: Investment Activity. The Investment Activity segment generates revenue primarily in the form of interest income from the investments it holds. In addition, the Company may generate income from dividends on equity investments, capital gains on the sale of investments and various loan origination and other fees.

The Company’s chief operating decision maker (the “CODM”) is comprised of the senior executive committee that includes the Chief Executive Officer, President, Chief Financial Officer, and the Deputy Chief Financial Officer.

The CODM uses the net increase (decrease) in net assets resulting from operations to evaluate income generated from segment investment activities. The evaluation and assessment of this metric is used in implementing investment policy decisions, strategic initiatives, managing the Company’s portfolio, evaluation of the Company’s distribution policy and assessing the performance of the portfolio.

The accounting policies of the Investment Activity segment are the same as those described in the summary of significant accounting policies. The CODM assesses performance for the segment and determines how to allocate resources based on the net increase (decrease) in net assets resulting from operations that also is reported on the Consolidated Statement of Operations. Significant segment expenses are reported as total expenses on the Consolidated Statement of Operations. The measure of segment assets is reported on the Consolidated Balance Sheet as total assets.

Recent Accounting Standards and Regulatory Updates

In December 2023, the FASB issued ASU No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”),” which intends to improve the transparency of income tax disclosures. ASU No. 2023-09 is effective for fiscal years beginning after December 15, 2024 and is to be adopted on a prospective basis with the option to apply retrospectively. The Company does not expect this update to have a material effect on the Company's consolidated financial statements.

In December 2024, the FASB issued ASU No. 2024-04, “Debt with Conversion and Other Options (Subtopic 470): Induced Conversions of Convertible Debt Instruments”, which clarifies the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as induced conversions rather than as debt extinguishments. This update is effective for annual periods beginning after December 15, 2025, including interim periods within those fiscal years, though early adoption is permitted. The Company does not expect this update to have a material effect on the Company's consolidated financial statements.

3. Agreements and Related Party Transactions

Administration Agreement

On March 15, 2011, the Company entered into the Administration Agreement with the Adviser. Under the terms of the Administration Agreement, the Adviser provides administrative services to the Company. These services include providing office space, equipment and office services, maintaining financial records, preparing reports to stockholders and reports filed with the SEC, and managing the payment of expenses and the oversight of the performance of administrative and professional services rendered by others. Certain of these services are reimbursable to the Adviser under the terms of the Administration Agreement. In addition, the Adviser is permitted to delegate its duties under the Administration Agreement to affiliates or third parties and the Company pays or reimburses the Adviser for certain expenses incurred by any such affiliates or third parties for work done on its behalf.

In February 2017, the Board of Directors of the Company and the Adviser entered into an amended and restated administration agreement (the “Administration Agreement”) reflecting certain clarifications to the agreement to provide greater detail regarding the scope of the reimbursable costs and expenses of the Administrator’s services.

In November 2025, the Board renewed the Administration Agreement. Unless earlier terminated as described below, the Administration Agreement will remain in effect until November 2026, and may be extended subject to required approvals. The Administration Agreement may be terminated by either party without penalty on 60 days’ written notice to the other party.

No person who is an officer, director or employee of the Adviser or its affiliates and who serves as a director of the Company receives any compensation from the Company for his or her services as a director. However, the Company reimburses the Adviser (or its affiliates) for the allocable portion of the costs of compensation, benefits, and related administrative expenses of the Company’s officers who provide operational and administrative services to the Company pursuant to the Administration Agreement, their respective staffs and other professionals who provide services to the Company (including, in each case, employees of the Adviser or an affiliate). Such reimbursable amounts include the allocable portion of the compensation paid by the Adviser or its affiliates to the Company’s Chief Financial Officer, Chief Compliance Officer, and other professionals who provide operational and administrative services to the Company pursuant to the Administration Agreement, including individuals who provide “back office” or “middle office” financial, operational, legal and/or compliance services to the Company. The Company reimburses the Adviser (or its affiliates) for the allocable portion of the compensation paid by the Adviser (or its affiliates) to such individuals based on the percentage of time those individuals devote, on an estimated basis, to the business and affairs of the Company and in acting on behalf of the Company. The Company may also reimburse the Adviser or its affiliates for the allocable portion of overhead expenses (including rent, office equipment and utilities) attributable thereto. Directors who are not affiliated with the Adviser receive compensation for their services and reimbursement of expenses incurred to attend meetings.

For the three and nine months ended September 30, 2025, the Company incurred expenses of$1.0 million and$2.8 million, respectively, for administrative services payable to the Adviser under the terms of the Administration Agreement, which is included in other general and administrative expenses in the Consolidated Statements of Operations. For the three and nine months ended September 30, 2024, the Company incurred expenses of $1.0 million and $2.9 million, respectively, for administrative services payable to the Adviser under the terms of the Administration Agreement.

Investment Advisory Agreement

On April 15, 2011, the Company entered into the Investment Advisory Agreement with the Adviser. The Investment Advisory Agreement was subsequently amended on December 12, 2011. Under the terms of the Investment Advisory Agreement, the Adviser provides investment advisory services to the Company. The Adviser’s services under the Investment Advisory Agreement are not exclusive, and the Adviser is free to furnish similar or other services to others so long as its services to the Company are not impaired. Under the terms of the Investment Advisory Agreement, the Company will pay the Adviser the Management Fee and may also pay certain Incentive Fees.

In November 2025, the Board renewed the Investment Advisory Agreement. Unless earlier terminated as described below, the Investment Advisory Agreement will remain in effect until November 2026, and may be extended subject to required approvals. The Investment Advisory Agreement may be terminated by either party without penalty on 60 days’ written notice to the other party.

The Management Fee is calculated at an annual rate of 1.5% based on the average value of the Company’s gross assets calculated using the values at the end of the two most recently completed calendar quarters, adjusted for any share issuances or repurchases during the period. The Management Fee is payable quarterly in arrears.

For the three and nine months ended September 30, 2025, Management Fees (gross of waivers) were$13.1 million and$39.1 million, respectively. For the three and nine months ended September 30, 2024, Management Fees (gross of waivers) were $13.0 million and $38.4 million, respectively.

Any waived Management Fees are not subject to recoupment by the Adviser.

The Adviser intends to waive a portion of the Management Fee payable under the Investment Advisory Agreement by reducing the Management Fee on assets financed using leverage over 200% asset coverage (in other words, over 1.0x debt to equity) (the “Leverage Waiver”). Pursuant to the Leverage Waiver, the Adviser intends to waive the portion of the Management Fee in excess of an annual rate of 1.0% (0.250% per quarter) on the average value of the Company's gross assets as of the end of the two most recently completed calendar quarters that exceeds the product of (i)200% and (ii) the average value of our net asset value at the end of the two most recently completed calendar quarters. For thethree and nine months ended September 30, 2025, the Adviser waived Management Fees of$0.3 million and$1.0 million, respectively, pursuant to the Leverage Waiver. For the three and nine months ended September 30, 2024, the Adviser waived Management Fees of $0.3 million and $1.0 million, respectively, pursuant to the Leverage Waiver.

The Incentive Fee consists of two parts, as follows:

The first component, payable at the end of each quarter in arrears, equals 100% of the pre-Incentive Fee net investment income in excess of a 1.5% quarterly “hurdle rate,” the calculation of which is further explained below, until the Adviser has received 17.5% of the total pre-Incentive Fee net investment income for that quarter and, for pre-Incentive Fee net investment income in excess of 1.82% quarterly,17.5% of all remaining pre-Incentive Fee net investment income for that quarter. The 100% “catch-up” provision for pre-Incentive Fee net investment income in excess of the 1.5% “hurdle rate” is intended to provide the Adviser with an Incentive Fee of 17.5% on all pre-Incentive Fee net investment income when that amount equals 1.82%in a quarter

(7.28% annualized), which is the rate at which catch-up is achieved. Once the “hurdle rate” is reached and catch-up is achieved,17.5% of any pre-Incentive Fee net investment income in excess of 1.82% in any quarter is payable to the Adviser.

Pre-Incentive Fee net investment income means dividends, interest and fee income accrued by the Company during the calendar quarter, minus the Company’s operating expenses for the quarter (including the Management Fee, expenses payable under the Administration Agreement to the Administrator, and any interest expense and dividends paid on any issued and outstanding preferred stock, but excluding the Incentive Fee). Pre-Incentive Fee net investment income includes, in the case of investments with a deferred interest feature (such as original issue discount, debt instruments with pay-in-kind interest and zero coupon securities), accrued income that the Company may not have received in cash. Pre-Incentive Fee net investment income does not include any realized capital gains, realized capital losses or unrealized capital gains or losses.

The second component, payable at the end of each fiscal year in arrears, equaled 15% through March 31, 2014 and, beginning April 1, 2014, equals a weighted percentage of cumulative realized capital gains from the Company’s inception to the end of that fiscal year, less cumulative realized capital losses and unrealized capital losses. This component of the Incentive Fee is referred to as the Capital Gains Fee. Each year, the fee paid for this component of the Incentive Fee is net of the aggregate amount of any previously paid Capital Gains Fee for prior periods. For capital gains that accrue following March 31, 2014, the Incentive Fee rate is 17.5%. The Company accrues, but does not pay, a Capital Gains Fee with respect to unrealized capital gains because a Capital Gains Fee would be owed to the Adviser if the Company were to sell the relevant investment and realize a capital gain. The weighted percentage is intended to ensure that for each fiscal year following the completion of the IPO, the portion of the Company’s realized capital gains that accrued prior to March 31, 2014, is subject to an Incentive Fee rate of 15% and the portion of the Company’s realized capital gains that accrued beginning April 1, 2014 is subject to an Incentive Fee rate of 17.5%. In the determination of the second component of the Incentive Fee, any unrealized gains or losses specifically related to the foreign currency denominated borrowings of non-US dollar denominated investments is offset against any associated unrealized gains or losses related to foreign currency denominated investments. As of March 31, 2020, there areno remaining investments that were made prior to April 1, 2014, and as a result, the Incentive Fee rate of 17.5% is applicable to any future realized capital gains.

For purposes of determining whether pre-Incentive Fee net investment income exceeds the hurdle rate, pre-Incentive Fee net investment income is expressed as a rate of return on the value of the Company’s net assets at the end of the immediately preceding calendar quarter.

Section 205(b)(3) of the Investment Advisers Act of 1940, as amended (the “Advisers Act”), prohibits the Adviser from receiving the payment of fees on unrealized gains until those gains are realized, if ever. There can be no assurance that such unrealized gains will be realized in the future.

For the three and nine months ended September 30, 2025, Incentive Fees were$9.5 million and$29.8 million, respectively, of which$10.5 million and$33.1 million, respectively, were realized and payable to the Adviser. For the three and nine months ended September 30, 2024, Incentive Fees were $8.9 million and $29.1 million, respectively, of which $11.2 million and $33.5 million, respectively, were realized and payable to the Adviser. For thethree and nine months ended September 30, 2025,$(1.1) million and$(3.3) million, respectively, of Incentive Fees were accrued related to Capital Gains Fees. For the three and nine months ended September 30, 2024, $(2.2) million and $(4.4) million, respectively, of Incentive Fees were accrued related to the reversal of Capital Gains Fees. As of September 30, 2025, the Capital Gains Fees accrued are not contractually payable to the Adviser.

Any waived Incentive Fees are not subject to recoupment by the Adviser.

Since the Company’s IPO, with the exception of its waiver of Management Fees and certain Incentive Fees attributable to the Company’s ownership of certain investments and the Leverage Waiver, the Adviser has not waived its right to receive any Management Fees or Incentive Fees payable pursuant to the Investment Advisory Agreement.

From time to time, the Adviser may pay amounts owed by the Company to third-party providers of goods or services, including the Board, and the Company will subsequently reimburse the Adviser for such amounts paid on its behalf. Amounts payable to the Adviser are settled in the normal course of business without formal payment terms.

4. Investments at Fair Value

Under the 1940 Act, the Company is required to separately identify non-controlled investments where it owns 5%or more of a portfolio company’s outstanding voting securities as investments in “affiliated” companies. In addition, under the 1940 Act, the Company is required to separately identify investments where it owns more than 25% of a portfolio company’s outstanding voting securities and/or had the power to exercise control over the management or policies of such portfolio company as investments in “controlled” companies. Detailed information with respect to the Company’s non-controlled, non-affiliated; non-controlled, affiliated; and controlled, affiliated investments is contained in the accompanying consolidated financial statements, including the Consolidated

Schedulesof Investments. The information in the tables below is presented on an aggregate portfolio basis, without regard to whether they are non-controlled, non-affiliated; non-controlled, affiliated; or controlled, affiliated investments.

Investments at fair value consisted of the following at September 30, 2025 and December 31, 2024:

(1)

The amortized cost represents the original cost adjusted for the amortization of discounts or premiums, as applicable, on debt investments using the effective interest method.

The industry composition of investments at fair value at September 30, 2025 and December 31, 2024 is as follows:

(1)

Value sums to less than 0.1%

The geographic composition of investments at fair value at September 30, 2025 and December 31, 2024 is as follows:

(1)

Value sums to less than 0.1%

5. Derivatives

Interest Rate Swaps

The Company enters into interest rate swap transactions from time to time to hedge fixed rate debt obligations and certain fixed rate debt investments. The Company’s interest rate swaps are all with one counterparty and are centrally cleared through a registered commodities exchange. Refer to the Consolidated Schedule of Investments for additional disclosure regarding these interest rate swaps.

Cash flows related to the Company's derivatives are included within operating activities on the Consolidated Statements of Cash Flows. The following tables present the amounts paid and received on the Company’s interest rate swap transactions for thethree and nine months ended September 30, 2025 and 2024:

For the three and nine months ended September 30, 2025, the Company recognized$3.9 million and$33.1 million, respectively, of unrealized gains on interest rate swaps designated as hedging instruments in the Consolidated Statements of Operations. For the three and nine months ended September 30, 2025, this amount was offset by an increase of$2.8 million and$9.0 million, respectively, for a change in carrying value of the 2026 Notes, an increase of$0.2 million and$6.0 million, respectively, for a change in carrying value of the 2028 Notes, an increase of$0.5 million and$8.7 million, respectively, for a change in carrying value of the 2029 Notes and an increase of$0.4 million and$9.3 million, respectively, for a change in carrying value of the 2030 Notes.

For the three and nine months ended September 30, 2024, the Company recognized $32.9 million and $25.5 million in unrealized gains, respectively, on interest rate swaps designated as hedging instruments in the Consolidated Statements of Operations. For thethree and nine months ended September 30, 2024, this amount was offset by an increase of $3.7 million and $9.1 million, respectively, for a change in the carrying value of the 2024 Notes, an increase of $8.2 million and $8.9 million, respectively, for a change in carrying value of the 2026 Notes, an increase of $9.3 million and $2.1 million, respectively, for a change in carrying value of the 2028 Notes, and an increase of $11.7 million and $5.4 million, respectively, for a change in carrying value of the 2029 Notes.

As of September 30, 2025, the swap transactions had a fair value of$8.8 million, which is netted against cash collateral of$20.1 million. Cash is pledged as collateral under the Company’s derivative agreements and is included in restricted cash as a component of cash and cash equivalents on the Company’s Consolidated Balance Sheet. As of December 31, 2024, the swap transactions had a fair value of $(24.2) million, which is netted against cash collateral of $46.6 million. Cash is pledged as collateral under the Company’s derivative agreements and is included in restricted cash as a component of cash and cash equivalents on the Company’s Consolidated Balance Sheet.

The Company is required under the terms of its derivatives agreements to pledge assets as collateral to secure its obligations underlying the derivatives. The amount of collateral required varies over time based on the mark-to-market value, notional amount and remaining term of the derivatives, and may exceed the amount owed by the Company on a mark-to-market basis. Any failure by the Company to fulfill any collateral requirement (e.g., a so-called “margin call”) may result in a default. In the event of a default by a counterparty, the Company would be an unsecured creditor to the extent of any such overcollateralization.

The Company may enter into other derivative instruments and incur other exposures with the same or other counterparties in the future.

6. Fair Value of Financial Instruments

Investments

The following tables present fair value measurements of investments as of September 30, 2025 and December 31, 2024:

Transfers between levels, if any, are recognized at the beginning of the quarter in which the transfers occur.

The following tables present the changes in the fair value of investments for which Level 3 inputs were used to determine the fair value as of and for thethree and nine months ended September 30, 2025:

Caris Life Sciences, Inc. was transferred out of Level 3 into Level 1 for fair value measurement purposes during the nine months ended September 30, 2025, as a result of changes in the observability of inputs into the security valuation for this portfolio company.

The following tables present the changes in the fair value of investments for which Level 3 inputs were used to determine the fair value as of and for the three and nine months ended September 30, 2024:

The following tables presents information with respect to the net change in unrealized gains or losses on investments for which Level 3 inputs were used in determining fair value that are still held by the Company at September 30, 2025 and 2024:

The following tables present the fair value of Level 3 Investments and the significant unobservable inputs used in the valuations as of September 30, 2025 and December 31, 2024. The tables are not intended to be all-inclusive, but instead capture the significant unobservable inputs relevant to the Company’s determination of fair values.

(1)

Includes$114.4 million of debt investments which were valued using an asset valuation waterfall.

(2)

Includes$0.4 million of debt investments which were valued using an asset valuation waterfall.

(3)

Includes$0.1 million of debt investments which were valued using an asset valuation waterfall.

(4)

Includes$13.3 million of equity investments which were valued using an asset valuation waterfall and$15.0 million of equity investments using a discounted cash flow analysis.

(1)

Includes $199.4 million of debt investments which were valued using an asset valuation waterfall.

(2)

Includes $6.0 million of debt investments which were valued using an asset valuation waterfall.

(3)

Includes $0.1 million of debt investments which were valued using an asset valuation waterfall.

(4)

Includes $13.6 million of equity investments which were valued using an asset valuation waterfall, $0.5 million of equity investments using a Black-Scholes model and $20.4 million of equity investments using a discounted cash flow analysis.

The Company typically determines the fair value of its performing Level 3 debt investments utilizing a yield analysis. In a yield analysis, a price is ascribed for each investment based upon an assessment of current and expected market yields for similar investments and risk profiles. Additional consideration is given to the expected life, portfolio company performance since close, and other terms and risks associated with an investment. Among other factors, a determinant of risk is the amount of leverage used by the portfolio company relative to the total enterprise value of the company, and the rights and remedies of our investment within each portfolio company’s capital structure.

Significant unobservable quantitative inputs typically considered in the fair value measurement of the Company’s Level 3 debt investments primarily include current market yields, including relevant market indices, but may also include quotes from brokers, dealers, and pricing services as indicated by comparable investments. If debt investments are credit impaired, an enterprise value analysis may be used to value such debt investments; however, in addition to the methods outlined above, other methods such as a liquidation or wind-down analysis may be utilized to estimate enterprise value. For the Company’s Level 3 equity investments, multiples of similar companies’ revenues, earnings before income taxes, depreciation and amortization (“EBITDA”) or some combination thereof and comparable market transactions are typically used.

Financial Instruments Not Carried at Fair Value

Debt

The fair value of the Company’s Revolving Credit Facility, which is categorized as Level 3 within the fair value hierarchy, as of September 30, 2025 and December 31, 2024, approximates its carrying value as the outstanding balance is callable at carrying value.

The following table presents the fair value of the Company’s 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes as of September 30, 2025 and December 31, 2024.

(1)

The fair value is based on broker quotes received by the Company and is categorized as Level 2 within the fair value hierarchy.

Other Financial Assets and Liabilities

The carrying amounts of the Company’s assets and liabilities, other than investments at fair value and the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes, approximate fair value due to their short maturities or their close proximity of the originations to the measurement date. Under the fair value hierarchy, cash and cash equivalents are classified as Level 1 while the Company’s other assets and liabilities, other than investments at fair value and Revolving Credit Facility, are classified as Level 2.

7. Debt

Revolving Credit Facility

On August 23, 2012, the Company entered into a senior secured revolving credit agreement with Truist Bank (as a successor by merger to SunTrust Bank), as administrative agent, and J.P. Morgan Chase Bank, N.A., as syndication agent, and certain other lenders (as amended and restated, the “Revolving Credit Facility”).

As of September 30, 2025, aggregate commitments under the Revolving Credit Facility were $1.675 billion. The Revolving Credit Facility includes an uncommitted accordion feature that allows the Company, under certain circumstances, to increase the size of the Revolving Credit Facility to up to $2.5 billion.

Pursuant to the Fifteenth Amendment dated April 24, 2024, aggregate commitments were increased to $1.7 billion. With respect to $1.505 billion of commitments, the revolving period was extended to April 24, 2028 and the stated maturity was extended to April 24, 2029. For the remaining $195.0 million of commitments, (A) with respect to $25.0 million of commitments, the revolving period ended on February 4, 2025 and the stated maturity is February 4, 2026 and (B) with respect to $170.0 million of commitments, the revolving period ends April 24, 2026 and the stated maturity is April 23, 2027.

Pursuant to the Sixteenth Amendment dated March 4, 2025, with respect to $1.525 billion of commitments, the revolving period, during which period we, subject to certain conditions, may make borrowings under the Revolving Credit Facility, was extended to March 2, 2029 and the stated maturity was extended to March 4, 2030. For the remaining $150.0 million of commitments the revolving period ends April 24, 2026 and the stated maturity is April 23, 2027.

The Company may borrow amounts in U.S. dollars or certain other permitted currencies. As of September 30, 2025, the Company had outstanding debt denominated in Australian dollars (AUD) of 63.0 million, British pounds (GBP) of 70.8 million, Canadian dollars (CAD) of 5.0 million, Swedish Krona (SEK) of 211.3 million and Euro (EUR) of 244.7 million on its Revolving Credit Facility, included in the Outstanding Principal amount in the table above. As of December 31, 2024, the Company had outstanding debt denominated in Australian dollars (AUD) of 63.0 million, British pounds (GBP) of 62.4 million, Canadian dollars (CAD) of 5.0 million, Swedish Krona (SEK) of 80.2 million and Euro (EUR) of 167.2 million on its Revolving Credit Facility, included in the Outstanding Principal amount in the table above.

The Revolving Credit Facility also provides for the issuance of letters of credit up to an aggregate amount of $75 million. As of September 30, 2025 and December 31, 2024, the Company had$19.7 million and $21.8 million outstanding letters of credit issued through the Revolving Credit Facility. The amount available for borrowing under the Revolving Credit Facility is reduced by any letters of credit issued through the Revolving Credit Facility.

For the $1.525 billion of commitments, amounts drawn under the Revolving Credit Facility, including amounts drawn in respect of letters of credit, bear interest at either the applicable reference rate plus an applicable credit spread adjustment, plus a margin of either 1.525%,1.65% or 1.775%, or the base rate plus a margin of either 0.525%,0.65% or 0.775%, in each case, based on the total amount of the borrowing base relative to the sum of the total commitments (or, if greater, the total exposure) under the Revolving Credit Facility plus certain other designated secured debt. For the remaining $150.0 million of commitments, amounts drawn under the Revolving Credit Facility, including amounts drawn in respect of letters of credit, bear interest at either the applicable reference rate plus an applicable credit spread adjustment, plus a margin of either 1.75% or 1.875% or the base rate plus a margin of either 0.75% or 0.875%, in each case, based on the total amount of the borrowing base relative to the sum of the total commitments (or, if greater, the total exposure) under the Revolving Credit Facility plus certain other designated secured debt. The Company may elect either the applicable reference rate or base rate at the time of drawdown, and loans may be converted from one rate to another at any time, subject to certain conditions. The Company also pays a fee of 0.325% on undrawn amounts and, in respect of each undrawn letter of credit, a fee and interest rate equal to the then applicable margin while the letter of credit is outstanding.

The Revolving Credit Facility is guaranteed by Sixth Street SL SPV, LLC, TC Lending, LLC and Sixth Street SL Holding, LLC. The Revolving Credit Facility is secured by a perfected first-priority security interest in substantially all the portfolio investments held by the Company and each guarantor. Proceeds from borrowings may be used for general corporate purposes, including the funding of portfolio investments.

The Revolving Credit Facility includes customary events of default, as well as customary covenants, including restrictions on certain distributions and financial covenants. In accordance with the terms of the Sixteenth Amendment, the financial covenants require:

•

an asset coverage ratio of no less than 2 to 1 on the last day of any fiscal quarter;

•

stockholders’ equity of at least $650 million plus 25% of the net proceeds of the sale of equity interests after April 24, 2024; and

•

a minimum asset coverage ratio of no less than 1.5 to 1 with respect to (i) the consolidated assets of the Company and the subsidiary guarantors (including certain limitations on the contribution of equity in financing subsidiaries) to (ii) the secured debt of the Company and its subsidiary guarantors plus unsecured senior securities of the Company and its subsidiary guarantors that mature within 90 days of the date of determination (the “Obligor Asset Coverage Ratio”).

The Revolving Credit Facility also contains certain additional concentration limits in connection with the calculation of the borrowing base, based on the Obligor Asset Coverage Ratio.

Net proceeds received from the Company’s issuance of the 2030 Notes were used to pay down borrowings on the Revolving Credit Facility.

As of September 30, 2025 and December 31, 2024, the Company was in compliance with the terms of the Revolving Credit Facility.

2024 Notes

In November 2019, the Company issued $300.0 million aggregate principal amount of unsecured notes that matured on November 1, 2024 (the “2024 Notes”). The principal amount of the 2024 Notes was payable at maturity. The 2024 Notes bear interest at a rate of 3.875% per year, payable semi-annually commencing on May 1, 2020, and may be redeemed in whole or in part at our option at any time at par plus a “make whole” premium. Total proceeds from the issuance of the 2024 Notes, net of underwriting discounts, offering costs and original issue discount were $292.9 million. The Company used the net proceeds of the 2024 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

In February 2020, the Company issued an additional $50.0 million aggregate principal amount of unsecured notes that mature on November 1, 2024. The additional 2024 Notes are a further issuance of, fungible with, rank equally in right of payment with and have the same terms (other than the issue date and the public offering price) as the initial issuance of 2024 Notes. Total proceeds from the issuance of the additional 2024 Notes, net of underwriting discounts, offering costs and original issue premium were $50.1 million. The Company used the net proceeds of the 2024 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

During the year ended December 31, 2020, the Company repurchased on the open market and extinguished $2.5 million in aggregate principal amount of the 2024 Notes for $2.4 million. These repurchases resulted in a gain on extinguishment of debt of less than $0.1 million. This gain is included in the extinguishment of debt in the accompanying Consolidated Statements of Operations.

The Company's 2024 Notes matured on November 1, 2024 and were fully repaid. The corresponding swap transaction associated with the issuance of the 2024 Notes also matured on November 1, 2024.

2026 Notes

In February 2021, the Company issued $300.0 million aggregate principal amount of unsecured notes that mature on August 1, 2026 (the “2026 Notes”). The principal amount of the 2026 Notes is payable at maturity. The 2026 Notes bear interest at a rate of 2.50% per year, payable semi-annually commencing on August 1, 2021, and may be redeemed in whole or in part at the Company’s option at any time at par plus a “make whole” premium. Total proceeds from the issuance of the 2026 Notes, net of underwriting discounts and estimated offering costs, were $293.7 million. The Company used the net proceeds of the 2026 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

In connection with the issuance of the 2026 Notes, the Company entered into an interest rate swap to align the interest rates of its liabilities with the Company’s investment portfolio, which consists of predominately floating rate loans. The notional amount of the interest rate swap is $300.0 million, which matures on August 1, 2026, matching the maturity date of the 2026 Notes. As a result of the swap, the Company’s effective interest rate on the 2026 Notes is SOFR plus 2.17%. The interest expense related to the 2026 Notes is offset by proceeds received from the interest rate swaps designated as a hedge. The swap adjusted interest expense is included as a component of interest expense on the Company’s Consolidated Statements of Operations. As of September 30, 2025 and December 31, 2024, the effective hedge interest rate swaps had a fair value of$(8.6) million and $(17.6) million, respectively, which is offset within interest expense by an equal, but opposite, fair value change for the hedged risk on the 2026 Notes.

2028 Notes

In August 2023, the Company issued $300.0 million aggregate principal amount of unsecured notes that mature on August 14, 2028 (the “2028 Notes”). The principal amount of the 2028 Notes is payable at maturity. The 2028 Notes bear interest at a rate of 6.95% per year, payable semi-annually commencing on February 14, 2024, and may be redeemed in whole or in part at the Company’s option at any time at par plus a “make whole” premium. Total proceeds from the issuance of the 2028 Notes, net of underwriting discounts, offering costs and original issue discount, were $293.9 million. The Company used the net proceeds of the 2028 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

In connection with the issuance of the 2028 Notes, the Company entered into an interest rate swap to align the interest rates of its liabilities with the Company’s investment portfolio, which consists of predominately floating rate loans. The notional amount of the interest rate swap is $300.0 million, which matures on August 14, 2028, matching the maturity date of the 2028 Notes. As a result of the swap, the Company’s effective interest rate on the 2028 Notes is SOFR plus 2.99%. The interest expense related to the 2028 Notes is offset by proceeds received from the interest rate swaps designated as a hedge. The swap adjusted interest expense is included as a component of interest expense on the Company’s Consolidated Statements of Operations. As of September 30, 2025 and December 31, 2024, the effective hedge interest rate swaps had a fair value of$4.6 million and $(1.4) million, respectively, which is offset within interest expense by an equal, but opposite, fair value change for the hedged risk on the 2028 Notes.

2029 Notes

In January 2024, the Company issued $350.0 million aggregate principal amount of unsecured notes that mature on March 1, 2029 (the “2029 Notes”). The principal amount of the 2029 Notes is payable at maturity. The 2029 Notes bear interest at a rate of 6.125% per year, payable semi-annually commencing on September 1, 2024, and may be redeemed in whole or in part at the Company’s option at any time at par plus a “make whole” premium. Total proceeds from the issuance of the 2029 Notes, net of underwriting discounts, offering costs and original issue discount, were $341.6 million. The Company used the net proceeds of the 2029 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

In connection with the issuance of the 2029 Notes, the Company entered into an interest rate swap to align the interest rates of its liabilities with the Company’s investment portfolio, which consists of predominately floating rate loans. The notional amount of the interest rate swap is $350.0 million, which matures on March 1, 2029, matching the maturity date of the 2029 Notes. As a result of the swap, the Company’s effective interest rate on the 2029 Notes is SOFR plus 2.44%. The interest expense related to the 2029 Notes is offset by proceeds received from the interest rate swaps designated as a hedge. The swap adjusted interest expense is included as a component of interest expense on the Company’s Consolidated Statements of Operations. As of September 30, 2025 and December 31, 2024, the effective hedge interest rate swaps had a fair value of$3.5 million and $(5.2) million, respectively, which is offset within interest expense by an equal, but opposite, fair value change for the hedged risk on the 2029 Notes.

2030 Notes

In February 2025, the Company issued $300.0 million aggregate principal amount of unsecured notes that mature on August 15, 2030 (the “2030 Notes”). The principal amount of the 2030 Notes is payable at maturity. The 2030 Notes bear interest at a rate of 5.625% per year, payable semi-annually commencing on August 15, 2025, and may be redeemed in whole or in part at our option at any time at par plus a “make whole” premium. Total proceeds from the issuance of the 2030 Notes, net of underwriting discounts, offering costs and original issue discount, were $293.4 million. The Company used the net proceeds of the 2030 Notes to repay outstanding indebtedness under the Revolving Credit Facility.

In connection with the issuance of the 2030 Notes, the Company entered into an interest rate swap to align the interest rates of its liabilities with the Company’s investment portfolio, which consists of predominately floating rate loans. The notional amount of the interest rate swap is $300.0 million, which matures on August 15, 2030, matching the maturity date of the 2030 Notes. As a result of the swap, the Company's effective interest rate on the 2030 Notes is SOFR plus 1.53%. The interest expense related to the 2030 Notes is offset by proceeds received from the interest rate swaps designated as a hedge. The swap adjusted interest expense is included as a component of interest expense on the Company's Consolidated Statements of Operations. As of September 30, 2025, the effective hedge interest rate swaps had a fair value of$9.3 million which is offset within interest expense by an equal, but opposite, fair value change for the hedged risk on the 2030 Notes.

For thethree and nine months ended September 30, 2025 and 2024, the components of interest expense related to the 2024 Notes, 2026 Notes, 2028 Notes, 2029 Notes, and 2030 Notes were as follows:

Total interest expense in the table above does not include the effect of the interest rate swaps related to the 2024 Notes, 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes. During the three and nine months ended September 30, 2025, the Company received$16.7 million and$47.1 million, respectively, and paid$21.3 million and$59.9 million respectively, related to the settlements of its interest rate swaps related to the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes. During the three and nine months ended September 30, 2024, the Company received $15.9 million and $46.4 million, respectively, and paid $26.2 million and $76.4 million, respectively, related to the settlements of its interest rate swaps, excluding upfront fees, related to the 2024 Notes, 2026 Notes, 2028 Notes and 2029 Notes. These net amounts are included in interest expense in the Company’s Consolidated Statements of Operations. Please see Note 5 for further information about the Company’s interest rate swaps.

As of September 30, 2025, the components of the carrying value of the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes and the stated interest rates were as follows:

As of December 31, 2024, the components of the carrying value of the 2026 Notes, 2028 Notes and 2029 Notes and the stated interest rates were as follows:

The stated interest rate in the table above does not include the effect of the interest rate swaps. As of September 30, 2025, the Company's swap-adjusted interest rate on the 2026 Notes, 2028 Notes, 2029 Notes and 2030 notes was SOFR plus 2.17%,2.99%,2.44% and 1.53%, respectively. As of December 31, 2024, the Company's swap-adjusted interest rate on the 2026 Notes, 2028 Notes and 2029 Notes was SOFR plus 2.17%,2.99% and 2.44%, respectively.

As of September 30, 2025, the Company was in compliance with the terms of the indentures governing the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes. As of December 31, 2024, the Company was in compliance with the terms of the indentures governing the 2026 Notes, 2028 Notes and 2029 Notes.

In accordance with the 1940 Act, with certain limitations, the Company is allowed to borrow amounts such that its asset coverage, as defined in the 1940 Act, is at least 150% after such borrowing. As of September 30, 2025 and December 31, 2024, the Company’s asset coverage was 187.5% and 182.5% respectively.

Debt obligations consisted of the following as of September 30, 2025 and December 31, 2024:

(1)

The amount available may be subject to limitations related to the borrowing base under the Revolving Credit Facility, outstanding letters of credit and asset coverage requirements.

(2)

The carrying values of the Revolving Credit Facility, 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes are presented net of the combination of deferred financing costs and original issue discounts totaling$16.0 million,$1.0 million,$3.6 million,$5.7 million and$6.9 million, respectively.

(3)

The carrying values of the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes are presented inclusive of an incremental$(8.6) million,$4.6 million,$3.5 million and$9.3 million, respectively, which represents an adjustment in the carrying values of the 2026 Notes, 2028 Notes, 2029 Notes and 2030 Notes, each resulting from a hedge accounting relationship.

(1)

The amount available may be subject to limitations related to the borrowing base under the Revolving Credit Facility, outstanding letters of credit and asset coverage requirements.

(2)

The carrying values of the Revolving Credit Facility, 2026 Notes, 2028 Notes and 2029 Notes are presented net of the combination of deferred financing costs and original issue discounts totaling $15.4 million, $1.8 million, $4.5 million and $6.9 million, respectively.

(3)

The carrying values of the 2026 Notes, 2028 Notes and 2029 Notes are presented inclusive of an incremental $(17.6) million, $(1.4) million and $(5.2) million, respectively, which represents an adjustment in the carrying values of the 2026 Notes, 2028 Notes and 2029 Notes, each resulting from a hedge accounting relationship.

For thethree and nine months ended September 30, 2025 and 2024, the components of interest expense were as follows:

8. Commitments and Contingencies

Portfolio Company Commitments

From time to time, the Company may enter into commitments to fund investments; such commitments are incorporated into the Company’s assessment of its liquidity position. The Company’s senior secured revolving loan commitments are generally available on a borrower’s demand and may remain outstanding until the maturity date of the applicable loan. The Company’s senior secured delayed draw term loan commitments are generally available on a borrower’s demand and, once drawn, generally have the same remaining term as the associated loan agreement. Undrawn senior secured delayed draw term loan commitments generally have a shorter availability period than the term of the associated loan agreement.

As of September 30, 2025 and December 31, 2024, the Company had the following commitments to fund investments in current portfolio companies:

(1)

Represents the full amount of the Company’s commitments to fund investments on such date. Commitments may be subject to limitations on borrowings set forth in the agreements between the Company and the applicable portfolio company. As a result, portfolio companies may not be eligible to borrow the full commitment amount on such date.

(2)

The Company’s estimate of the fair value of the current investments in these portfolio companies includes an analysis of the fair value of any unfunded commitments.

Other Commitments and Contingencies

As of September 30, 2025 and December 31, 2024, the Company didnot have any unfunded commitments to fund investments to new borrowers that were not current portfolio companies as of such date.

From time to time, the Company may become a party to certain legal proceedings incidental to the normal course of its business. As of September 30, 2025 and December 31, 2024, management is not aware of any material pending or threatened litigation that would require accounting recognition or financial statement disclosure.

9. Net Assets

On March 5, 2024, the Company issued a total of 4,000,000 shares of common stock at $20.52 per share. Net of underwriting fees and offering costs, the Company received total cash proceeds of $81.5 million. Subsequent to the offering, the Company issued an additional 600,000 shares on April 1, 2024 pursuant to the overallotment option granted to underwriters and received, net of offering and underwriting fees, additional total cash proceeds of $11.9 million.

The Company has a dividend reinvestment plan, whereby the Company may buy shares of its common stock in the open market or issue new shares in order to satisfy dividend reinvestment requests. The number of shares to be issued to a stockholder is determined by dividing the total dollar amount of the cash dividend or distribution payable to a stockholder by the market price per share of the Company’s common stock at the close of regular trading on the NYSE on the payment date of a distribution, or if no sale is reported for such day, the average of the reported bid and ask prices. However, if the market price per share on the payment date of a cash dividend or distribution exceeds the most recently computed net asset value per share, the Company will issue shares at the greater of (i) the most recently computed net asset value per share and (ii)95% of the current market price per share (or such lesser discount to the current market price per share that still exceeded the most recently computed net asset value per share). Shares purchased in open market transactions by the plan administrator will be allocated to a stockholder based on the average purchase price, excluding any brokerage charges or other charges, of all shares of common stock purchased in the open market.

Pursuant to the Company’s dividend reinvestment plan, the following tables summarize the shares issued to stockholders who have not opted out of the Company’s dividend reinvestment plan during thenine months ended September 30, 2025 and 2024. All shares issued to stockholders in the tables below are newly issued shares.

(1)

See Note 11 for further information on base, supplemental and special dividends.

On August 4, 2015, the Company's Board authorized the Company to acquire up to $50 million in aggregate of the Company’s common stock from time to time over an initialsix month period, and has continued to authorize the refreshment of the $50 million amount authorized under and extension of the stock repurchase program prior to its expiration since that time, most recently as of April 30, 2025 (effective May 31, 2025). Under the program, we may repurchase up to $50 million in the aggregate of our outstanding common stock in the open market, from time to time, at certain thresholds below our net asset value per share, in accordance with the guidelines specified in Rule 10b-18 of the Exchange Act. The amount and timing of stock repurchases under the program may vary depending on market conditions, and no assurance can be given that any particular amount of common stock will be repurchased.

No shares were repurchased during thenine months ended September 30, 2025 and 2024.

At the Market Offerings

The Company is a party to equity distribution agreements with several banks (the “Equity Distribution Agreements”). The Equity Distribution Agreements provide that the Company may from time to time issue and sell, by means of “at the market” offerings, up to $100 million of the Company's common stock. Subject to the terms and conditions of the Equity Distribution Agreements, sales of common stock, if any, may be made in transactions that are deemed to be “at the market” offerings as defined in Rule 415(a)(4) under the Securities Act of 1933, as amended. Under the currently effective Equity Distribution Agreements, common stock with an aggregate offering amount of $100 million remained available for issuance as of September 30, 2025.

10. Earnings per share

The following table sets forth the computation of basic and diluted earnings per common share for thethree and nine months ended September 30, 2025 and 2024:

11. Dividends

The Company has historically paid a dividend to stockholders on a quarterly basis. The Company has a dividend framework that provides for a quarterly base dividend and a variable supplemental dividend, subject to satisfaction of certain measurement tests and the approval of the Board.

The following tables summarize dividends declared during thenine months ended September 30, 2025 and 2024:

The dividends declared during the nine months ended September 30, 2025 and 2024 were derived from net investment income and long-term capital gains, determined on a tax basis.

12. Financial Highlights

The following per share data and ratios have been derived from information provided in the consolidated financial statements. The following are the financial highlights for one share of common stock outstanding during thenine months ended September 30, 2025 and 2024:

(1)

The per share data was derived by using the weighted average shares outstanding during the period.

(2)

The per share data was derived by using the actual shares outstanding at the date of the relevant transactions.

(3)

Total return based on market value with dividends reinvested is calculated as the change in market value per share during the period plus declared dividends per share, assuming reinvestment of dividends, divided by the beginning market value per share.

(4)

Total return based on market value is calculated as the change in market value per share during the period plus declared dividends per share, divided by the beginning market value per share.

(5)

Total return based on net asset value is calculated as the change in net asset value per share during the period plus declared dividends per share, divided by the beginning net asset value per share.

(6)

The ratios reflect an annualized amount.

(7)

The ratio of net expenses to average net assets in the table above reflects the Adviser’s waivers of its right to receive a portion of the Management Fee pursuant to the Leverage Waiver for the nine months ended September 30, 2025 and 2024. Excluding the effects of the waivers, the ratio of net expenses to average net assets would have been 15.08% and 16.78%, respectively, for thenine months ended September 30, 2025 and 2024.

(8)

13. Subsequent Events

The Company’s management has evaluated subsequent events through the date of issuance of the consolidated financial statements included herein. There have been no subsequent events, except as already disclosed, that occurred during such period that would require disclosure in this Form 10-Q or would be required to be recognized in the consolidated financial statements as of and for the three and nine months ended September 30, 2025.