Oaktree Specialty Lending Corp

Note 1. Organization

Oaktree Specialty Lending Corporation (together with its consolidated subsidiaries, the "Company") is a specialty finance company that looks to provide customized, one-stop credit solutions to companies with limited access to public or syndicated capital markets. The Company was formed in late 2007 and operates as a closed-end, externally managed, non-diversified management investment company that has elected to be regulated as a Business Development Company under the Investment Company Act. The Company has qualified and elected to be treated as a regulated investment company ("RIC") under the Internal Revenue Code of 1986, as amended (the "Code"), for U.S. federal income tax purposes.

The Company's investment objective is to generate current income and capital appreciation by providing companies with flexible and innovative financing solutions, including first lien loans (which may include “unitranche” loans and “last out” first lien loans, which are loans that are second priority behind “first out” first lien loans), second lien loans, unsecured and mezzanine loans, bonds, preferred equity and certain equity co-investments. The Company may also seek to generate capital appreciation and income through secondary investments at discounts to par in either private or syndicated transactions.

The Company is externally managed by Oaktree Fund Advisors, LLC ("Oaktree"), pursuant to an investment advisory agreement between the Company and Oaktree (as amended and restated, the "Investment Advisory Agreement"). Oaktree is an affiliate of Oaktree Capital Management, L.P. ("OCM"), the Company's external investment adviser from October 17, 2017 through May 3, 2020. Oaktree Fund Administration, LLC ("Oaktree Administrator"), a subsidiary of OCM, provides certain administrative and other services necessary for the Company to operate pursuant to an administration agreement between the Company and Oaktree Administrator (the "Administration Agreement"). See Note 10.

On March 19, 2021, the Company acquired Oaktree Strategic Income Corporation (“OCSI”) pursuant to that certain Agreement and Plan of Merger (the “OCSI Merger Agreement”), dated as of October 28, 2020, by and among OCSI, the Company, Lion Merger Sub, Inc., a wholly-owned subsidiary of the Company, and, solely for the limited purposes set forth therein, Oaktree. Pursuant to the OCSI Merger Agreement, OCSI was merged with and into the Company in a two-step transaction, with the Company as the surviving company (the "OCSI Merger”).

On January 23, 2023, the Company acquired Oaktree Strategic Income II, Inc. (“OSI2”) pursuant to that certain Agreement and Plan of Merger (the “OSI2 Merger Agreement”), dated as of September 14, 2022, by and among OSI2, the Company, Project Superior Merger Sub, Inc., a wholly-owned subsidiary of the Company, and, solely for the limited purposes set forth therein, Oaktree. Pursuant to the OSI2 Merger Agreement, OSI2 was merged with and into the Company in a two-step transaction with the Company as the surviving company (the “OSI2 Merger”).

Note 2. Significant Accounting Policies

Basis of Presentation:

The Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and pursuant to the requirements for reporting on Form 10-Q and Regulation S-X. In the opinion of management, all adjustments of a normal recurring nature considered necessary for the fair presentation of the Consolidated Financial Statements have been made. All intercompany balances and transactions have been eliminated. Interim results may not be reflective of results of operations for the full year. The unaudited interim consolidated financial statements and notes thereto should be read in conjunction with the financial statements and notes thereto in the Company’s Form 10-K for the year ended September 30, 2025, as filed with the U.S. Securities and Exchange Commission (the “SEC”). The Company is an investment company following the accounting and reporting guidance in ASC Topic 946, Financial Services - Investment Companies ("ASC 946").

Use of Estimates:

The preparation of the financial statements in conformity with GAAP requires management to make certain estimates and assumptions affecting amounts reported in the financial statements and accompanying notes. These estimates are based on the information that is currently available to the Company and on various other assumptions that the Company believes to be reasonable under the circumstances. Changes in the economic and political environments, financial markets and any other parameters used in determining these estimates could cause actual results to differ and such differences could be material. Significant estimates include the valuation of investments and revenue recognition.

Consolidation:

The accompanying Consolidated Financial Statements include the accounts of Oaktree Specialty Lending Corporation and its consolidated subsidiaries. Each consolidated subsidiary is wholly-owned and, as such, consolidated into the Consolidated Financial Statements. Certain subsidiaries that hold investments are treated as pass through entities for U.S.

federal income tax purposes. The assets of certain of the consolidated subsidiaries are not directly available to satisfy the claims of the creditors of Oaktree Specialty Lending Corporation or any of its other subsidiaries.

As an investment company, portfolio investments held by the Company are not consolidated into the Consolidated Financial Statements but rather are included on the Statements of Assets and Liabilities as investments at fair value.

Fair Value Measurements:

Oaktree, as the valuation designee of the Company's Board of Directors pursuant to Rule 2a-5 under the Investment Company Act, determines the fair value of the Company's assets, including unfunded commitments, on at least a quarterly basis in accordance with ASC 820. ASC 820 defines fair value as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A liability's fair value is defined as the amount that would be paid to transfer the liability to a new obligor, not the amount that would be paid to settle the liability with the creditor. ASC 820 prioritizes the use of observable market prices over entity-specific inputs. Where observable prices or inputs are not available or reliable, valuation techniques are applied. These valuation techniques involve some level of estimation and judgment, the degree of which is dependent on the price transparency for the investments or market and the investments' complexity.

Hierarchical levels, defined by ASC 820 and directly related to the amount of subjectivity associated with the inputs to fair valuation of these assets and liabilities, are as follows:

•Level 1 — Unadjusted, quoted prices in active markets for identical assets or liabilities as of the measurement date.

•Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data at the measurement date for substantially the full term of the assets or liabilities.

•Level 3 — Unobservable inputs that reflect Oaktree's best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model.

If inputs used to measure fair value fall into different levels of the fair value hierarchy, an investment's level is based on the lowest level of input that is significant to the fair value measurement. Oaktree's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the investment. This includes investment securities that are valued using "bid" and "ask" prices obtained from independent third party pricing services or directly from brokers. These investments may be classified as Level 3 because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities or may require adjustments for investment-specific factors or restrictions.

Financial instruments with readily available quoted prices generally will have a higher degree of market price observability and a lesser degree of judgment inherent in measuring fair value. As such, Oaktree obtains and analyzes readily available market quotations provided by pricing vendors and brokers for all of the Company's investments for which quotations are available. In determining the fair value of a particular investment, pricing vendors and brokers use observable market information, including both binding and non-binding indicative quotations.

Oaktree seeks to obtain at least two quotations for the subject or similar securities, typically from pricing vendors. If Oaktree is unable to obtain two quotes from pricing vendors, or if the prices obtained from pricing vendors are not within Oaktree's set threshold, Oaktree seeks to obtain a quote directly from a broker making a market for the asset. Oaktree evaluates the quotations provided by pricing vendors and brokers based on available market information, including trading activity of the subject or similar securities, or by performing a comparable security analysis to ensure that fair values are reasonably estimated. Generally, Oaktree does not adjust any of the prices received from these sources. Oaktree also performs back-testing of valuation information obtained from pricing vendors and brokers against actual prices received in transactions. In addition to ongoing monitoring and back-testing, Oaktree performs due diligence procedures over pricing vendors to understand their methodology and controls to support their use in the valuation process.

If the quotations obtained from pricing vendors or brokers are determined to not be reliable or are not readily available, Oaktree values such investments using any of three different valuation techniques. The first valuation technique is the transaction precedent technique, which utilizes recent or expected future transactions of the investment to determine fair value, to the extent applicable. The second valuation technique is an analysis of the enterprise value ("EV") of the portfolio company. EV means the entire value of the portfolio company to a market participant, including the sum of the values of debt and equity securities used to capitalize the enterprise at a point in time. The EV analysis is typically performed to determine (i) the value of equity investments, (ii) whether there is credit impairment for debt investments and (iii) the value for debt investments that the

Company is deemed to control under the Investment Company Act. To estimate the EV of a portfolio company, Oaktree analyzes various factors, including the portfolio company’s historical and projected financial results, macroeconomic impacts on the company and competitive dynamics in the company’s industry. Oaktree also utilizes some or all of the following information based on the individual circumstances of the portfolio company: (i) valuations of comparable public companies, (ii) recent sales of private and public comparable companies in similar industries or having similar business or earnings characteristics, (iii) purchase prices as a multiple of their earnings or cash flow, (iv) the portfolio company’s ability to meet its forecasts and its business prospects, (v) a discounted cash flow analysis, (vi) estimated liquidation or collateral value of the portfolio company's assets and (vii) offers from third parties to buy the portfolio company. Oaktree may probability weight potential sale outcomes with respect to a portfolio company when uncertainty exists as of the valuation date. The third valuation technique is a market yield technique, which is typically performed for non-credit impaired debt investments. In the market yield technique, a current price is imputed for the investment based upon an assessment of the expected market yield for a similarly structured investment with a similar level of risk, and Oaktree considers the current contractual interest rate, the capital structure and other terms of the investment relative to risk of the company and the specific investment. A key determinant of risk, among other things, is the leverage through the investment relative to the EV of the portfolio company. As debt investments held by the Company are substantially illiquid with no active transaction market, Oaktree depends on primary market data, including newly funded transactions and industry specific market movements, as well as secondary market data with respect to high yield debt instruments and syndicated loans, as inputs in determining the appropriate market yield, as applicable.

In accordance with ASC 820-10, certain investments that qualify as investment companies in accordance with ASC 946 may be valued using net asset value as a practical expedient for fair value. Consistent with FASB guidance under ASC 820, these investments are excluded from the hierarchical levels. These investments are generally not redeemable.

Oaktree estimates the fair value of certain privately held warrants using a Black Scholes pricing model, which includes an analysis of various factors and subjective assumptions, including the current stock price (by using an EV analysis as described above), the expected period until exercise, expected volatility of the underlying stock price, expected dividends and the risk free rate. Changes in the subjective input assumptions can materially affect the fair value estimates.

The Company's Board of Directors has designated Oaktree to serve as its valuation designee. Oaktree undertakes a multi-step valuation process each quarter in connection with determining the fair value of the Company's investments:

•The quarterly valuation process begins with each portfolio company or investment being initially valued by Oaktree's valuation team;

•Preliminary valuations are then reviewed and discussed with management of Oaktree;

•Separately, independent valuation firms prepare valuations of the Company's investments, on a selected basis, for which market quotations are not readily available or are readily available but deemed not reflective of the fair value of the investment, and submit the reports to the Company and provide such reports to Oaktree;

•Oaktree compares and contrasts its preliminary valuations to the valuations of the independent valuation firms and prepares a valuation report for the Audit Committee;

•The Audit Committee reviews the valuation report with Oaktree, and Oaktree responds and supplements the valuation report to reflect any discussions between Oaktree and the Audit Committee; and

•Oaktree, as valuation designee, determines the fair value of each investment in the Company's portfolio.

The fair value of the Company's investments as of December 31, 2025 and September 30, 2025 was determined by Oaktree, as the Board of Directors' valuation designee. The Company has and will continue to engage independent valuation firms to provide assistance regarding the determination of the fair value of a portion of its portfolio securities for which market quotations are not readily available or are readily available but deemed not reflective of the fair value of the investment each quarter.

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. Because of the inherent uncertainty of valuation, these estimated values may differ significantly from the values that would have been reported had a ready market for the investments existed, and it is reasonably possible that the difference could be material.

With the exception of the line items entitled "deferred financing costs," "deferred offering costs," "other assets," "credit facilities payable" and "unsecured notes payable," which are reported at amortized cost, all assets and liabilities approximate fair value on the Consolidated Statements of Assets and Liabilities. The carrying value of the line items titled "interest, dividends and fees receivable," "due from portfolio companies," "receivables from unsettled transactions," "due from broker,"

"accounts payable, accrued expenses and other liabilities," "base management fee and incentive fee payable," "due to affiliate," "interest payable " and "payables from unsettled transactions" approximate fair value due to their short maturities.

Foreign Currency Translation:

The accounting records of the Company are maintained in U.S. dollars. All assets and liabilities denominated in foreign currencies are translated into U.S. dollars based on the prevailing foreign exchange rate on the reporting date. 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 market prices of securities held. The Company’s investments in foreign securities may involve certain risks, including foreign exchange restrictions, expropriation, taxation or other political, social or economic risks, all of which could affect the market and/or credit risk of the investment. In addition, changes in the relationship of foreign currencies to the U.S. dollar can significantly affect the value of these investments and therefore the earnings of the Company.

Derivative Instruments:

Foreign Currency Forward Contracts

The Company uses foreign currency forward contracts to reduce the Company's exposure to fluctuations in the value of foreign currencies. In a foreign currency forward contract, the Company agrees to receive or deliver a fixed quantity of one currency for another at a pre-determined price at a future date. Foreign currency forward contracts are marked-to-market at the applicable forward rate. Unrealized appreciation (depreciation) on foreign currency forward contracts is recorded within derivative assets or derivative liabilities on the Consolidated Statements of Assets and Liabilities by counterparty on a net basis, not taking into account collateral posted which is recorded separately, if applicable. Purchases and settlements of foreign currency forward contracts having the same settlement date and counterparty are generally settled net and any realized gains or losses are recognized on the settlement date. The Company does not utilize hedge accounting with respect to foreign currency forward contracts and, as such, the Company recognizes its foreign currency forward contracts at fair value with changes included in the net unrealized appreciation (depreciation) on the Consolidated Statements of Operations.

Interest Rate Swaps

The Company uses interest rate swaps to hedge the Company's fixed rate debt. The Company designated the interest rate swaps as the hedging instruments in an effective hedge accounting relationship, and therefore the periodic payments are recognized as components of interest expense in the Consolidated Statements of Operations. Depending on the nature of the balance at period end, the fair value of each interest rate swap is either included as a derivative asset or derivative liability on the Company's Consolidated Statements of Assets and Liabilities. The change in fair value of the interest rate swaps is offset by a change in the carrying value of the fixed rate debt. Any amounts paid to the counterparty to cover collateral obligations under the terms of the interest rate swap agreements are included in due from broker on the Company's Consolidated Statements of Assets and Liabilities.

Restricted Securities:

The Company may invest in securities that may be deemed “restricted securities” for purposes of Regulation S-X. Disposal of these restricted securities, which are valued in accordance with the Company’s valuation policy as described under “—Fair Value Measurements”, may involve time-consuming negotiations and additional expense, and prompt sale at an acceptable price may be difficult due to legal and/or contractual restrictions. Information regarding restricted securities is included in the Schedules of Investments.

Investment Income:

Interest Income

Interest income, adjusted for accretion of original issue discount ("OID"), is recorded on an accrual basis to the extent that such amounts are expected to be collected. The Company stops accruing interest on investments when it is determined that interest is no longer collectible. Investments that are expected to pay regularly scheduled interest in cash are generally placed on non-accrual status when there is reasonable doubt that principal or interest cash payments will be collected. Cash interest payments received on investments may be recognized as income or a return of capital depending upon management’s judgment.

A non-accrual investment is restored to accrual status if past due principal and interest are paid in cash and the portfolio company, in management’s judgment, is likely to continue timely payment of its remaining obligations. As of December 31, 2025, there were 11 investments on non-accrual status that in aggregate represented 6.5% and 3.1% of total debt investments at cost and fair value, respectively. As of September 30, 2025, there wereten investments on non-accrual status that in aggregate represented 6.5% and 3.0% of total debt investments at cost and fair value, respectively.

In connection with its investment in a portfolio company, the Company sometimes receives nominal cost equity that is valued as part of the negotiation process with the portfolio company. When the Company receives nominal cost equity, the Company allocates its cost basis in the investment between debt securities and the nominal cost equity at the time of origination. Any resulting discount from recording the loan, or otherwise purchasing a security at a discount, is accreted into interest income over the life of the loan.

PIK Interest Income

The Company's investments in debt securities may contain PIK interest provisions. PIK interest, which generally represents contractually deferred interest added to the loan balance that is generally due at the end of the loan term, is generally recorded on the accrual basis to the extent such amounts are expected to be collected. The Company generally ceases accruing PIK interest if there is insufficient value to support the accrual or if the Company does not expect the portfolio company to be able to pay all principal and interest due. The Company's decision to cease accruing PIK interest on a loan or debt security involves subjective judgments and determinations based on available information about a particular portfolio company, including whether the portfolio company is current with respect to its payment of principal and interest on its loans and debt securities; financial statements and financial projections for the portfolio company; the Company's assessment of the portfolio company's business development success; information obtained by the Company in connection with periodic formal update interviews with the portfolio company's management and, if appropriate, the private equity sponsor; and information about the general economic and market conditions in which the portfolio company operates. The Company's determination to cease accruing PIK interest is generally made well before the Company's full write-down of a loan or debt security. In addition, if it is subsequently determined that the Company will not be able to collect any previously accrued PIK interest, the fair value of the loans or debt securities would be reduced by the amount of such previously accrued, but uncollectible, PIK interest. The accrual of PIK interest on the Company’s debt investments increases the recorded cost basis of these investments in the Consolidated Financial Statements including for purposes of computing the capital gains incentive fee payable by the Company to Oaktree. To maintain its status as a RIC, certain income from PIK interest may be required to be distributed to the Company’s stockholders, even though the Company has not yet collected the cash and may never do so.

Fee Income

Oaktree or its affiliates may provide financial advisory services to portfolio companies and, in return, the Company may receive fees for capital structuring services. These fees are generally non-recurring and are recognized by the Company upon the investment closing date. The Company may also receive additional fees in the ordinary course of business, including servicing, amendment, exit and prepayment fees, which are classified as fee income and recognized as they are earned or the services are rendered.

Dividend Income

The Company generally recognizes dividend income on the ex-dividend date for public securities and the record date for private equity investments. Distributions received from private equity investments are evaluated to determine if the distribution should be recorded as dividend income or a return of capital. Generally, the Company will not record distributions from private equity investments as dividend income unless there are sufficient earnings at the portfolio company prior to the distribution. Distributions that are classified as a return of capital are recorded as a reduction in the cost basis of the investment.

Cash and Cash Equivalents and Restricted Cash:

Cash and cash equivalents consist of demand deposits and highly liquid investments with maturities of three months or less when acquired. The Company places its cash and cash equivalents and restricted cash with financial institutions and, at times, cash held in bank accounts exceeds the Federal Deposit Insurance Corporation ("FDIC") insurance limit. Cash equivalents invested in money market mutual funds are measured at fair value using the market approach based on observable transactions or quoted prices in active markets, which represent the daily net asset value (“NAV”) of the funds, and are classified as Level 1 assets within the fair value hierarchy. Cash and cash equivalents are included in the Company’s

Consolidated Schedule of Investments. As of December 31, 2025 and September 30, 2025, the Company didnot have any restricted cash.

Due from Portfolio Companies:

Due from portfolio companies consists of amounts payable to the Company from its portfolio companies, including proceeds from the sale of portfolio companies not yet received or being held in escrow and excluding those amounts attributable to interest, dividends or fees receivable. These amounts are recognized as they become payable to the Company (e.g., principal payments on the scheduled amortization payment date).

Receivables/Payables from Unsettled Transactions:

Receivables/payables from unsettled transactions consist of amounts receivable to or payable by the Company for transactions that have not settled at the reporting date.

Deferred Financing Costs:

Deferred financing costs consist of fees and expenses paid in connection with the closing or amending of credit facilities and debt offerings. Deferred financing costs in connection with credit facilities are capitalized as an asset when incurred. Deferred financing costs in connection with all other debt arrangements are a direct deduction from the related debt liability when incurred. Deferred financing costs are amortized using the effective interest method over the term of the respective debt arrangement. This amortization expense is included in interest expense in the Consolidated Statements of Operations. Upon early termination or modification of a credit facility, all or a portion of unamortized fees related to such facility may be accelerated into interest expense. For extinguishments of the Company’s unsecured notes payable, any unamortized deferred financing costs are deducted from the carrying amount of the debt in determining the gain or loss from the extinguishment.

Deferred Offering Costs:

Legal fees and other costs incurred in connection with the Company’s shelf registration statement are capitalized as deferred offering costs in the Consolidated Statements of Assets and Liabilities. To the extent any such costs relate to equity offerings, these costs are charged as a reduction of capital upon utilization. To the extent any such costs relate to debt offerings, these costs are treated as deferred financing costs and are amortized over the term of the respective debt arrangement. Any deferred offering costs that remain at the expiration of the shelf registration statement or when it becomes probable that an offering will not be completed are expensed.

Segment Reporting:

The Company operates as a single reportable segment and derives revenues from investing primarily in originated loans and other securities, including broadly syndicated loans, of U.S. private companies and manages the business on a consolidated basis.

The chief operating decision maker (“CODM”) is composed of the Company’s chief executive officer and chief financial officer. The primary performance metric provided to the CODM to assess performance and make operating decisions is "Net increase (decrease) in net assets resulting from operations" which is reported on the Consolidated Statement of Operations.

Performance metrics are provided to the CODM on a quarterly basis and are utilized to evaluate performance generated from segment net assets. These key metrics, in addition to other factors, are utilized by the CODM to determine allocation of profits, such as for investment or the amount recommended to the Board for distribution to the Company’s shareholders. As the Company operates as a single reporting segment, the segment net assets are reported on the Consolidated Statements of Assets and Liabilities and the significant segment expenses are listed on the Consolidated Statement of Operations.

Income Taxes:

The Company has elected to be subject to tax as a RIC under Subchapter M of the Code and operates in a manner so as to qualify for the tax treatment applicable to RICs. In order to be subject to tax as a RIC, among other things, the Company is required to meet certain source of income and asset diversification requirements and timely distribute dividends to its stockholders of an amount generally at least equal to 90% of investment company taxable income, as defined by the Code and determined without regard to any deduction for dividends paid, for each taxable year. As a RIC, the Company is not subject to U.S. federal income tax on the portion of its taxable income and gains distributed currently to stockholders as a dividend. Depending on the level of taxable income earned during a taxable year, the Company may choose to retain taxable income in excess of current year dividend distributions and would distribute such taxable income in the next taxable year. The Company would then incur a 4% excise tax on such income, as required. To the extent that the Company determines that its estimated current year annual taxable income, determined on a calendar year basis, could exceed estimated current calendar year dividend distributions, the Company accrues excise tax, if any, on estimated excess taxable income as taxable income is earned. The Company anticipates timely distribution of its taxable income within the tax rules under Subchapter M of the Code. The Company did not incur any U.S. federal excise tax for calendar year 2024 and calendar year 2025. The Company does not expect to incur a U.S. federal excise tax for calendar year 2026.

The Company holds certain portfolio investments through taxable subsidiaries. The purpose of the Company's taxable subsidiaries is to permit the Company to hold equity investments in portfolio companies which are "pass through" entities for U.S. federal income tax purposes in order to comply with the RIC tax requirements. The taxable subsidiaries are consolidated for financial reporting purposes, and portfolio investments held by them are included in the Company’s Consolidated Financial Statements as portfolio investments and recorded at fair value. The taxable subsidiaries are not consolidated with the Company for U.S. federal income tax purposes and may generate income tax expense, or benefit, and the related tax assets and liabilities, as a result of their ownership of certain portfolio investments. This income tax expense, if any, would be reflected in the Company's Consolidated Statements of Operations. The Company uses the liability method to account for its taxable subsidiaries' income taxes. Using this method, the Company recognizes deferred tax assets and liabilities for the estimated future tax effects attributable to temporary differences between financial reporting and tax bases of assets and liabilities. In addition, the Company recognizes deferred tax benefits associated with net operating loss carry forwards that it may use to offset future tax obligations. The Company measures deferred tax assets and liabilities using the enacted tax rates expected to apply to taxable income in the years in which it expects to recover or settle those temporary differences.

FASB ASC Topic 740, Accounting for Uncertainty in Income Taxes ("ASC 740"), provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the Company's Consolidated Financial Statements. ASC 740 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Company's tax returns to determine whether the tax positions are "more-likely-than-not" of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold are recorded as a tax benefit or expense in the current year. Management's determinations regarding ASC 740 may be subject to review and adjustment at a later date based upon factors including an ongoing analysis of tax laws, regulations and interpretations thereof. The Company recognizes the tax benefits of uncertain tax positions only where the position is "more-likely-than-not" to be sustained assuming examination by tax authorities. Management has analyzed the Company's tax positions and has concluded that no liability for unrecognized tax benefits should be recorded related to uncertain tax positions taken on returns filed for open tax years 2022, 2023 and 2024. The Company identifies its major tax jurisdictions as U.S. Federal and California, and the Company is not aware of any tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will change materially in the next 12 months.

Recent Accounting Pronouncements

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires additional disaggregated disclosures on the entity’s effective tax rate reconciliation and additional details on income taxes paid. The guidance is effective on a prospective basis, with the option for retrospective application, for annual periods beginning after December 15, 2024 and early adoption is permitted. ASU 2023-09 is effective for the fiscal year beginning October 1, 2025 and the Company is evaluating the effect of adoption on its annual financial statements for the year ended September 30, 2026.

Note 3. Portfolio Investments

As of December 31, 2025,205.3% of net assets at fair value, or $2.9 billion, was invested in 167 portfolio companies, including (i) $120.9 million in subordinated notes and limited liability company ("LLC") equity interests of Senior Loan Fund JV I, LLC ("SLF JV I"), a joint venture through which the Company and Trinity Universal Insurance Company, a subsidiary of Kemper Corporation ("Kemper"), co-invest in senior secured loans of middle-market companies and other corporate debt securities and (ii) $43.9 million in subordinated notes and LLC equity interests of OCSI Glick JV LLC ("Glick JV" and, together with SLF JV I, the "JVs"), a joint venture through which the Company and GF Equity Funding 2014 LLC ("GF Equity Funding") co-invest primarily in senior secured loans of middle-market companies. As of December 31, 2025,5.6% of net assets at fair value, or $80.8 million, was invested in cash and cash equivalents. In comparison, as of September 30, 2025,194.3% of net assets at fair value, or $2.8 billion, was invested in 143 portfolio investments, including (i) $124.6 million in subordinated notes and LLC equity interests of SLF JV I and (ii) $46.1 million in subordinated notes and LLC equity interests of Glick JV. As of September 30, 2025,5.4% of net assets at fair value, or $79.6 million, was invested in cash and cash equivalents. As of December 31, 2025,86.4% of the Company's portfolio at fair value consisted of senior secured debt investments and 9.0% consisted of subordinated debt investments, including the debt investments in the JVs. As of September 30, 2025,85.9% of the Company's portfolio at fair value consisted of senior secured debt investments and 8.7% consisted of subordinated debt investments, including the debt investments in the JVs.

The Company also held equity investments in certain of its portfolio companies consisting of common stock, preferred stock, warrants or LLC equity interests. These instruments generally do not produce a current return but are held for potential investment appreciation and capital gain.

During the three months ended December 31, 2025 and 2024, the Company recorded net realized gains (losses) of $1.3 million and $(17.3) million, respectively. During the three months ended December 31, 2025 and 2024, the Company recorded net unrealized depreciation of $32.4 million and $19.6 million, respectively.

The composition of the Company's investments as of December 31, 2025 and September 30, 2025 at cost and fair value was as follows:

The following table presents the composition of the Company's debt investments as of December 31, 2025 and September 30, 2025 at floating rates and fixed rates:

The following table presents the financial instruments carried at fair value as of December 31, 2025 on the Company's Consolidated Statement of Assets and Liabilities for each of the three levels of hierarchy established by ASC 820:

(a)In accordance with ASC 820-10, certain investments that are measured using the net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. These investments are generally not redeemable. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Statements of Assets and Liabilities.

The following table presents the financial instruments carried at fair value as of September 30, 2025 on the Company's Consolidated Statement of Assets and Liabilities for each of the three levels of hierarchy established by ASC 820:

(a)In accordance with ASC 820-10, certain investments that are measured using the net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. These investments are generally not redeemable. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Statements of Assets and Liabilities.

When a determination is made to classify a financial instrument within Level 3 of the valuation hierarchy, the determination is based upon the fact that the unobservable factors are significant to the overall fair value measurement.

However, Level 3 financial instruments typically have both unobservable or Level 3 components and observable components (i.e. components that are actively quoted and can be validated by external sources). Accordingly, the appreciation (depreciation) in the tables below includes changes in fair value due in part to observable factors that are part of the valuation methodology. Transfers between levels are recognized at the beginning of the reporting period.

The following table provides a roll-forward in the changes in fair value from September 30, 2025 to December 31, 2025 for all investments for which Oaktree determined fair value using unobservable (Level 3) factors:

The following table provides a roll-forward in the changes in fair value from September 30, 2024 to December 31, 2024 for all investments for which Oaktree determined fair value using unobservable (Level 3) factors:

(a) There were $6.6 million of transfers into Level 3 from Level 2 for investments during the three months ended December 31, 2024 as a result of a change in the number of market quotes available and/or a change in market liquidity.

(b) There were $12.8 million of transfers out of Level 3 to Level 2 for investments during the three months ended December 31, 2024 as a result of a change in the number of market quotes available and/or a change in market liquidity.

(c) There were investment restructurings during the three months ended December 31, 2024 in which (1) $30.9 million of Level 3 senior secured debt was exchanged for Level 2 senior secured debt, (2) $0.6 million of Level 3 senior secured debt was exchanged for Level 3 preferred equity and (3) $2.5 million of Level 3 senior secured debt was exchanged for Level 3 common equity.

Significant Unobservable Inputs for Level 3 Investments

The following table provides quantitative information related to the significant unobservable inputs for Level 3 investments, which are carried at fair value, as of December 31, 2025:

(a)Weighted averages are calculated based on fair value of investments.

(b)Used when market participants would take into account market yield when pricing the investment.

(c)Used when market participants would use such multiples when pricing the investment.

(d)Used when there is an observable transaction or pending event for the investment.

(e)Oaktree generally uses prices provided by an independent pricing service which are non-binding indicative prices on or near the valuation date as the primary basis for the fair value determinations for quoted senior secured debt investments. Since these prices are non-binding, they may not be indicative of fair value. Oaktree evaluates the quotations provided by pricing vendors and brokers based on available market information, including trading activity of the subject or similar securities, or by performing a comparable security analysis to ensure that fair values are reasonably estimated.

(f)Oaktree determined the value of its subordinated notes of each JV based on the total assets less the total liabilities senior to the subordinated notes held at such JV in an amount not exceeding par under the EV technique.

The following table provides quantitative information related to the significant unobservable inputs for Level 3 investments, which are carried at fair value, as of September 30, 2025:

(a)Weighted averages are calculated based on fair value of investments.

(b)Used when market participants would take into account market yield when pricing the investment.

(c)Used when market participants would use such multiples when pricing the investment.

(d)Used when there is an observable transaction or pending event for the investment.

(e)Oaktree determined the value of its subordinated notes of each JV based on the total assets less the total liabilities senior to the subordinated notes held at such JV in an amount not exceeding par under the EV technique.

Under the market yield technique, the significant unobservable input used in the fair value measurement of the Company's investments in debt securities is the market yield. Increases or decreases in the market yield may result in a lower or higher fair value measurement, respectively.

Under the EV technique, the significant unobservable input used in the fair value measurement of the Company's investments in debt or equity securities is the earnings before interest, taxes, depreciation and amortization ("EBITDA"), revenue or asset multiple, as applicable. Increases or decreases in the valuation multiples in isolation may result in a higher or lower fair value measurement, respectively.

Financial Instruments Disclosed, But Not Carried, At Fair Value

The following table presents the carrying value and fair value of the Company's financial liabilities disclosed, but not carried, at fair value as of December 31, 2025 and the level of each financial liability within the fair value hierarchy:

The following table presents the carrying value and fair value of the Company's financial liabilities disclosed, but not carried, at fair value as of September 30, 2025 and the level of each financial liability within the fair value hierarchy:

The principal values of the credit facilities payable approximate fair value due to their variable interest rates and are included in Level 3 of the hierarchy. Oaktree used market quotes as of the valuation date to estimate the fair value of the Company's 3.500% notes due 2025 (the "2025 Notes"),2.700% notes due 2027 (the "2027 Notes"),7.100% notes due 2029 (the "2029 Notes") and 6.340% notes due 2030 (the "2030 Notes"), which are included in Level 2 of the hierarchy.

Portfolio Composition

Summaries of the composition of the Company's portfolio at cost as a percentage of total investments and at fair value as a percentage of total investments and net assets are shown in the following tables:

The geographic composition is determined by the location of the corporate headquarters of the portfolio company, which may not be indicative of the primary source of the portfolio company's business. The following tables show the composition of the Company's portfolio by geographic region at cost as a percentage of total investments and at fair value as a percentage of total investments and net assets:

The following tables show the composition of the Company's portfolio by industry at cost as a percentage of total investments and at fair value as a percentage of total investments and net assets as of December 31, 2025 and September 30, 2025:

(1)This industry includes the Company's investments in the JVs and CLOs.

As of December 31, 2025 and September 30, 2025, the Company had no single investment that represented greater than 10% of the total investment portfolio at fair value. Income, consisting of interest, dividends, fees, other investment income and realization of gains or losses, may fluctuate and in any given period can be highly concentrated among several investments.

Senior Loan Fund JV I, LLC

In May 2014, the Company entered into an LLC agreement with Kemper to form SLF JV I. The Company co-invests in senior secured loans of middle-market companies and other corporate debt securities with Kemper through its investment in SLF JV I. SLF JV I is managed by afour person Board of Directors, two of whom are selected by the Company andtwo of whom are selected by Kemper. All portfolio decisions and investment decisions in respect of SLF JV I must be approved by the SLF JV I investment committee, which consists ofone representative selected by the Company andone representative selected by Kemper (with approval from a representative of each required). Since the Company does not have a controlling financial interest in SLF JV I, the Company does not consolidate SLF JV I.

SLF JV I is capitalized pro rata with LLC equity interests as transactions are completed and may be capitalized with additional subordinated notes issued to the Company and Kemper by SLF JV I. The subordinated notes issued by SLF JV I (the "SLF JV I Notes") are senior in right of payment to SLF JV I LLC equity interests and subordinated in right of payment to SLF JV I’s secured debt. As of December 31, 2025 and September 30, 2025, the Company and Kemper owned, in the aggregate,87.5% and 12.5%, respectively, of the LLC equity interests of SLF JV I and the outstanding SLF JV I Notes. SLF JV I is not an "eligible portfolio company" as defined in section 2(a)(46) of the Investment Company Act.

SLF JV I has a revolving credit facility with Bank of America, N.A. (as amended and/or restated from time to

time, the "SLF JV I Facility"), which permitted up to $270.0 million of borrowings (subject to borrowing base and other limitations) as of December 31, 2025. Borrowings under the SLF JV I Facility are secured by all of the assets of SLF JV I Funding II LLC, a special purpose financing subsidiary of SLF JV I. As of December 31, 2025, the revolving period of the SLF JV I Facility was scheduled to expire August 16, 2028 and the maturity date was August 21, 2028. As of December 31, 2025, borrowings under the SLF JV I Facility accrued interest at a rate equal to daily SOFR plus 1.40% per annum. As of December 31, 2025 and September 30, 2025, $251.5 million and $252.5 million of borrowings were outstanding under the SLF JV I Facility, respectively.

As of December 31, 2025 and September 30, 2025, SLF JV I had total assets of $410.0 million and $447.4 million, respectively. SLF JV I's portfolio primarily consisted of senior secured loans to 74 and 72 portfolio companies as of December 31, 2025 and September 30, 2025, respectively. The portfolio companies in SLF JV I are in industries similar to those in which the Company may invest directly. As of December 31, 2025, the Company's investment in SLF JV I consisted of LLC equity interests and SLF JV I Notes of $120.9 million in aggregate, at fair value. As of September 30, 2025, the Company's investment in SLF JV I consisted of LLC equity interests and SLF JV I Notes of $124.6 million in aggregate, at fair value.

As of each of December 31, 2025 and September 30, 2025, the Company and Kemper had funded approximately $190.5 million to SLF JV I, of which $166.7 million was from the Company. As of each of December 31, 2025 and September 30, 2025, the Company had aggregate commitments to fund SLF JV I of $13.1 million, of which approximately $9.8 million was to fund additional SLF JV I Notes and approximately $3.3 million was to fund LLC equity interests in SLF JV I.

Below is a summary of SLF JV I's portfolio, followed by a listing of the individual loans in SLF JV I's portfolio as of December 31, 2025 and September 30, 2025:

(2) Computed using the weighted average annual interest rate on accruing senior secured loans at fair value.

SLF JV I Portfolio as of December 31, 2025

(1) Represents the interest rate as of December 31, 2025. All interest rates are payable in cash, unless otherwise noted.

(2) The interest rate on the principal balance outstanding for most of the floating rate loans is indexed to SOFR which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each of these loans, the Company has provided the applicable margin over the reference rates based on each respective credit agreement and the cash interest rate as of period end. As of December 31, 2025, the reference rates for SLF JV I's variable rate loans were the 30-day SOFR at 3.69%, the 90-day SOFR at 3.65% and the 180-day SOFR at 3.57%. Most loans include an interest floor, which generally ranges from 0% to 3%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and the stated spread.

(3) Represents the current determination of fair value as of December 31, 2025 utilizing a similar technique as the Company in accordance with ASC 820. However, the determination of such fair value is not included in the valuation process described elsewhere herein.

(4) This investment was held by both the Company and SLF JV I as of December 31, 2025.

(5) This investment was on non-accrual status as of December 31, 2025.

SLF JV I Portfolio as of September 30, 2025

(1) Represents the interest rate as of September 30, 2025. All interest rates are payable in cash, unless otherwise noted.

(2) The interest rate on the principal balance outstanding for most of the floating rate loans is indexed to SOFR which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each of these loans, the Company has provided the applicable margin over the reference rates based on each respective credit agreement and the cash interest rate as of period end. As of September 30, 2025, the reference rates for SLF JV I's variable rate loans were the 30-day SOFR at 4.13%, the 90-day SOFR at 3.98% and the 180-day SOFR at 3.85%. Most loans include an interest floor, which generally ranges from 0% to 3%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and the stated spread.

(3) Represents the current determination of fair value as of December 31, 2025 utilizing a similar technique as the Company in accordance with ASC 820. However, the determination of such fair value is not included in the valuation process described elsewhere herein.

(4) This investment was held by both the Company and SLF JV I as of September 30, 2025.

(5) This investment was on non-accrual status as of September 30, 2025.

Both the cost and fair value of the Company's SLF JV I Notes were $112.7 million as of each of December 31, 2025 and September 30, 2025. The Company earned interest income of $3.2 million and $3.4 million on the SLF JV I Notes for the three months ended December 31, 2025 and 2024, respectively. As of December 31, 2025, the SLF JV I Notes bore interest at a rate of one-month SOFR plus 7.00% per annum with a SOFR floor of 1.00% and will mature on December 29, 2028.

The cost and fair value of the LLC equity interests in SLF JV I held by the Company were $54.8 million and $8.3 million, respectively, as of December 31, 2025, and $54.8 million and $11.9 million, respectively, as of September 30, 2025. The Company earned $0.5 million and $0.7 million in dividend income for the three months ended December 31, 2025 and 2024, respectively, with respect to its investment in the LLC equity interests of SLF JV I. The LLC equity interests of SLF JV I are generally dividend producing to the extent SLF JV I has residual cash to be distributed on a quarterly basis.

Below is certain summarized financial information for SLF JV I as of December 31, 2025 and September 30, 2025 and for the three months ended December 31, 2025 and 2024:

(1) There are no management fees or incentive fees charged at SLF JV I.

SLF JV I has elected to fair value the SLF JV I Notes issued to the Company and Kemper under FASB ASC Topic 825, Financial Instruments - Fair Value Option ("ASC 825"). The SLF JV I Notes are valued based on the total assets less the total liabilities senior to the SLF JV I Notes in an amount not exceeding par under the EV technique.

During the three months ended December 31, 2025 and 2024, the Company did not sell any senior secured debt investments to SLF JV I.

OCSI Glick JV LLC

On March 19, 2021, the Company became party to the LLC agreement of Glick JV. The Company co-invests primarily in senior secured loans of middle-market companies with GF Equity Funding through the Glick JV. The Glick JV is managed by afour person Board of Directors, two of whom are selected by the Company andtwo of whom are selected by GF Equity Funding. The Glick JV is capitalized as transactions are completed, and portfolio decisions and investment decisions in respect of the Glick JV must be approved by the Glick JV investment committee, which consists ofone representative selected by the Company andone representative selected by GF Equity Funding (with approval from a representative of each required). Since the Company does not have a controlling financial interest in the Glick JV, the Company does not consolidate the Glick JV.

The members provide capital to the Glick JV in exchange for LLC equity interests, and the Company and GF Debt Funding 2014 LLC ("GF Debt Funding"), an entity advised by affiliates of GF Equity Funding, provide capital to the Glick JV in exchange for subordinated notes issued by the Glick JV (the "Glick JV Notes"). As of December 31, 2025 and September 30, 2025, the Company and GF Equity Funding owned 87.5% and 12.5%, respectively, of the outstanding LLC equity interests, and the Company and GF Debt Funding owned 87.5% and 12.5%, respectively, of the Glick JV Notes. The Glick JV is not an "eligible portfolio company" as defined in section 2(a)(46) of the Investment Company Act.

The Glick JV has a revolving credit facility with Bank of America, N.A. (as amended and/or restated from time to time, the "Glick JV Facility"), which, as of December 31, 2025, had a revolving period end date and maturity date of August 16, 2028 and August 21, 2028, respectively, and permitted borrowings of up to $100.0 million (subject to borrowing base and other limitations). Borrowings under the Glick JV Facility are secured by all of the assets of OCSL Glick JV Funding II LLC, a special purpose financing subsidiary of the Glick JV. As of December 31, 2025, borrowings under the Glick JV Facility bore interest at a rate equal to daily SOFR plus 1.40% per annum. As of December 31, 2025 and September 30, 2025, $77.5 million and $80.5 million of borrowings were outstanding under the Glick JV Facility, respectively.

As of December 31, 2025 and September 30, 2025, the Glick JV had total assets of $191.6 million and $149.1 million, respectively. The Glick JV's portfolio consisted of middle-market and other corporate debt securities of 115 and 57 portfolio companies as of December 31, 2025 and September 30, 2025, respectively. The portfolio companies in the Glick JV are in industries similar to those in which the Company may invest directly. The Company's investment in the Glick JV consisted of LLC equity interests and Glick JV Notes of $43.9 million and $46.1 million in the aggregate at fair value as of December 31, 2025 and September 30, 2025, respectively. The Glick JV Notes are junior in right of payment to the repayment of temporary contributions made by the Company to fund investments of the Glick JV that are repaid when GF Equity Funding and GF Debt Funding make their capital contributions and fund their Glick JV Notes, respectively.

As of each of December 31, 2025 and September 30, 2025, the Glick JV had total capital commitments of $100.0 million, $87.5 million of which was from the Company and the remaining $12.5 million of which was from GF Equity Funding and GF Debt Funding. Approximately $84.0 million in aggregate commitments were funded as of each of December 31, 2025 and September 30, 2025, of which $73.5 million was from the Company. As of each of December 31, 2025 and September 30, 2025, the Company had commitments to fund Glick JV Notes of $78.8 million, of which $12.4 million were unfunded. As of each of December 31, 2025 and September 30, 2025, the Company had commitments to fund LLC equity interests in the Glick JV of $8.7 million, of which $1.6 million were unfunded.

Below is a summary of the Glick JV's portfolio, followed by a listing of the individual loans in the Glick JV's portfolio as of December 31, 2025 and September 30, 2025:

(2) Computed using the weighted average annual interest rate on accruing senior secured loans at fair value.

Glick JV Portfolio as of December 31, 2025

(1) Represents the interest rate as of December 31, 2025. All interest rates are payable in cash, unless otherwise noted.

(2) The interest rate on the principal balance outstanding for all of the floating rate loans is indexed to SOFR, which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each of these loans, the Company has provided the applicable margin over the reference rates based on each respective credit agreement and the cash interest rate as of period end. As of December 31, 2025, the reference rates for the Glick JV's variable rate loans were the 30-day SOFR at 3.69%, the 90-day SOFR at 3.65% and the 180-day SOFR at 3.57%. Most loans include an interest floor, which generally ranges from 0% to 3%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and the stated spread.

(3) Represents the current determination of fair value as of December 31, 2025 utilizing a similar technique as the Company in accordance with ASC 820. However, the determination of such fair value is not included in the valuation process described elsewhere herein.

(4) This investment was held by both the Company and the Glick JV as of December 31, 2025.

(5) Investment had undrawn commitments. Unamortized fees are classified as unearned income which reduces cost basis, which may result in a negative cost basis. A negative fair value may result from the unfunded commitment being valued below par.

(6) This investment was on non-accrual status as of December 31, 2025.

Glick JV Portfolio as of September 30, 2025

(1) Represents the interest rate as of September 30, 2025. All interest rates are payable in cash, unless otherwise noted.

(2) The interest rate on the principal balance outstanding for all of the floating rate loans is indexed to SOFR, which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each of these loans, the Company has provided the applicable margin over the reference rates based on each respective credit agreement and the cash interest rate as of period end. As of September 30, 2025, the reference rates for the Glick JV's variable rate loans were the 30-day SOFR at 4.13%, the 90-day SOFR at 3.98% and the 180-day SOFR at 3.85%. Most loans include an interest floor, which generally ranges from 0% to 3%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and the stated spread.

(3) Represents the current determination of fair value as of September 30, 2025 utilizing a similar technique as the Company in accordance with ASC 820. However, the determination of such fair value is not included in the valuation process described elsewhere herein.

(4) This investment was held by both the Company and the Glick JV as of September 30, 2025.

(5) This investment was on non-accrual status as of September 30, 2025.

The cost and fair value of the Company's aggregate investment in the Glick JV was $53.5 million and $43.9 million, respectively, as of December 31, 2025. The cost and fair value of the Company's aggregate investment in the Glick JV was $53.1 million and $46.1 million, respectively, as of September 30, 2025. For each of the three months ended December 31,

2025 and 2024, the Company's investment in the Glick JV Notes earned interest income of $1.7 million. The Company did not earn dividend income for the three months ended December 31, 2025 and 2024 with respect to its investment in the LLC equity interest of the Glick JV. As of December 31, 2025, the Glick JV Notes bore interest at a rate of one-month SOFR plus 4.50% per annum and will mature on October 20, 2028.

Below is certain summarized financial information for the Glick JV as of December 31, 2025 and September 30, 2025 and for the three months ended December 31, 2025 and 2024:

(1) There are no management fees or incentive fees charged at the Glick JV.

The Glick JV has elected to fair value the Glick JV Notes issued to the Company and GF Debt Funding under ASC 825. The Glick JV Notes are valued based on the total assets less the liabilities senior to the Glick JV Notes in an amount not exceeding par under the EV technique.

During the three months ended December 31, 2025 and 2024, the Company did not sell any debt investments to the Glick JV.

Note 4. Fee Income

For the three months ended December 31, 2025 and 2024, the Company recorded total fee income of $3.0 million and $1.7 million, respectively, of which less than $0.1 million and $0.2 million, respectively, was recurring in nature.

Note 5. Share Data and Net Assets

Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share, pursuant to ASC Topic 260-10, Earnings per Share, for the three months ended December 31, 2025 and 2024:

Changes in Net Assets

The following table presents the changes in net assets for the three months ended December 31, 2025:

The following table presents the changes in net assets for the three months ended December 31, 2024:

Distributions

Distributions to common stockholders are recorded on the ex-dividend date. The amount to be paid out as a dividend is determined by the Board of Directors and is based on management’s estimate of the Company’s annual taxable income. Net realized capital gains, if any, may be distributed to stockholders or retained for reinvestment.

The Company has adopted a dividend reinvestment plan (“DRIP”) that provides for reinvestment of any distributions the Company declares in cash on behalf of its stockholders, unless a stockholder elects to receive cash. As a result, if the Company’s Board of Directors declares a cash distribution, then the Company’s stockholders who have not “opted out” of the Company’s DRIP will have their cash distribution automatically reinvested in additional shares of the Company’s common stock, rather than receiving the cash distribution. If the Company’s shares are trading at a premium to net asset value, the

Company typically issues new shares to implement the DRIP with such shares issued at the greater of the most recently computed net asset value per share of common stock or 95% of the current market price per share of common stock on the payment date for such distribution. If the Company’s shares are trading at a discount to net asset value, the Company typically purchases shares in the open market in connection with the Company’s obligations under the DRIP.

For income tax purposes, the Company has reported its distributions for the 2025 calendar year as ordinary income. The character of such distributions was appropriately reported to the Internal Revenue Service and stockholders for the 2025 calendar year. To the extent the Company’s taxable earnings for a fiscal and taxable year fall below the amount of distributions paid for the fiscal and taxable year, a portion of the total amount of the Company’s distributions for the fiscal and taxable year is deemed a return of capital for U.S. federal income tax purposes to the Company’s stockholders.

The following table reflects the distributions per share that the Company has paid, including shares issued under the DRIP, on its common stock during the three months ended December 31, 2025 and 2024:

(1) Shares were purchased on the open market and distributed.

Common Stock Issuances

During the three months ended December 31, 2025, the Company did not issue any shares of common stock as part of the DRIP.

The Company is party to an equity distribution agreement, dated February 7, 2022, as amended, by and among the Company, Oaktree and Oaktree Administrator and Keefe, Bruyette & Woods, Inc., Citizens JMP Securities, LLC, Raymond James & Associates, Inc. and SMBC Nikko Securities America, Inc., pursuant to which the Company may offer and sell shares of its common stock from time to time having an aggregate offering price of up to $300.0 million under its current shelf registration statement. Sales of the common stock may be made in negotiated transactions or transactions that are deemed to be “at the market,” as defined in Rule 415 under the Securities Act of 1933, as amended, including sales made directly on the Nasdaq Global Select Market or similar securities exchanges or sales made to or through a market maker other than on an exchange, at prices related to the prevailing market prices or at negotiated prices.

In connection with the "at the market" offering, the Company did not issue and sell any shares of common stock during the three months ended December 31, 2025 and December 31, 2024.

On January 31, 2025, the Company and Oaktree Capital I, L.P., an affiliate of Oaktree, entered into a purchase agreement pursuant to which Oaktree Capital I, L.P. purchased 5,672,149 shares of the Company’s common stock on February 3, 2025 for an aggregate purchase price of $100.0 million. These shares were sold at $17.63 per share, which was the Company’s net asset value per share as of January 31, 2025 as calculated in accordance with Section 23 of the Investment Company Act. Oaktree Capital I, L.P. has agreed not to sell the shares acquired in this transaction through February 3, 2026.

Note 6. Borrowings

Syndicated Facility

On November 30, 2017, the Company entered into a senior secured revolving credit facility (as amended and restated, the “Syndicated Facility”) pursuant to a Senior Secured Revolving Credit Agreement with the lenders party thereto, ING Capital LLC, as administrative agent, ING Capital LLC, JPMorgan Chase Bank, N.A., BofA Securities, Inc. and Wells Fargo Securities, LLC, as joint lead arrangers and joint bookrunners, and JPMorgan Chase Bank, N.A. and Bank of America, N.A., as syndication agents. The Syndicated Facility provides that the Company may use the proceeds of the loans and issuances of letters of credit under the Syndicated Facility for general corporate purposes, including acquiring and funding leveraged loans, mezzanine loans, high-yield securities, convertible securities, preferred stock, common stock and other investments. The Syndicated Facility further allows the Company to request letters of credit from ING Capital LLC, as the issuing bank.

As of December 31, 2025, the size of the Syndicated Facility was $1.16 billion. In addition, pursuant to an "accordion" feature, the Company may increase the size of the facility to up to the greater of $1.50 billion and the Company's net worth, as defined in the facility, under certain circumstances.

As of December 31, 2025, (i) the period during which the Company may make drawings will expire on April 8, 2029 and the maturity date is April 8, 2030 and (ii) the interest rate margin for (a) SOFR loans (which may be 1- or 3-month at the Company’s option) was 1.875% plus a SOFR adjustment equal to 0.10% and (b) alternate base rate loans was 0.875% plus a SOFR adjustment equal to 0.10%; provided that, if at any time the Borrowing Base (as defined in the Syndicated Facility) is greater than 1.60 times the Combined Debt Amount (as defined in the Syndicated Facility), the interest rate margin with respect to (a) SOFR loans will be 1.75% plus a SOFR adjustment equal to 0.10% and (b) alternate base rate loans will be 0.75% plus a SOFR adjustment equal to 0.10%.

The Syndicated Facility is secured by substantially all of the Company’s assets (excluding, among other things, investments held in and by certain subsidiaries of the Company (including OSI 2 Senior Lending SPV, LLC, or “OSI 2 SPV”) or investments in certain portfolio companies of the Company) and guaranteed by certain subsidiaries of the Company.

The Syndicated Facility requires the Company to, among other things, (i) make representations and warranties regarding the collateral as well as each of the Company’s portfolio companies’ businesses, (ii) agree to certain indemnification obligations, and (iii) comply with various affirmative and negative covenants, reporting requirements and other customary requirements for similar revolving credit facilities, including covenants related to: (A) limitations on the incurrence of additional indebtedness and liens, (B) limitations on certain investments, (C) limitations on certain asset transfers and restricted payments, (D) maintaining a certain minimum stockholders’ equity, (E) maintaining a ratio of total assets (less total liabilities) to total indebtedness, of the Company and its subsidiaries (subject to certain exceptions), of not less than 1.50 to 1.00, (F) maintaining a ratio of consolidated EBITDA to consolidated interest expense, of the Company and its subsidiaries (subject to certain exceptions), of not less than 2.25 to 1.00, (G) maintaining a minimum liquidity and net worth, and (H) limitations on the creation or existence of agreements that prohibit liens on certain properties of the Company and certain of its subsidiaries. The Syndicated Facility also includes usual and customary default provisions such as the failure to make timely payments under the facility, the occurrence of a change in control, and the failure by the Company to materially perform under the agreements governing the facility, which, if not complied with, could accelerate repayment under the facility. As of December 31, 2025, the Company was in compliance with all financial covenants under the Syndicated Facility. In addition to the asset coverage ratio described above, borrowings under the Syndicated Facility (and the incurrence of certain other permitted debt) are subject to compliance with a borrowing base that will apply different advance rates to different types of assets in the Company’s portfolio. Each loan or letter of credit originated or assumed under the Syndicated Facility is subject to the satisfaction of certain conditions.

As of December 31, 2025 and September 30, 2025, the Company had $665.0 million and $545.0 million of borrowings outstanding under the Syndicated Facility, which had a fair value of $665.0 million and $545.0 million, respectively. The Company's borrowings under the Syndicated Facility bore interest at a weighted average interest rate of 5.945% and 6.841% for the three months ended December 31, 2025 and 2024, respectively. For the three months ended December 31, 2025 and 2024, the Company recorded interest expense (inclusive of fees) of $10.3 million and $9.5 million, respectively, related to the Syndicated Facility.

OSI2 Citibank Facility

On January 23, 2023, as a result of the consummation of the OSI2 Merger, the Company became party to a revolving credit facility (as amended and/or restated from time to time, the “OSI2 Citibank Facility”) with OSI 2 SPV, the Company’s wholly-owned and consolidated subsidiary, as the borrower, the Company, as collateral manager, each of the lenders from time to time party thereto, Citibank, N.A., as administrative agent, and Deutsche Bank Trust Company Americas, as collateral agent. On May 14, 2025, the Company repaid all outstanding borrowings under the OSI2 Citibank Facility, following which the OSI2

Citibank Facility was terminated. Obligations under the OSI2 Citibank Facility would have otherwise matured on January 26, 2029.

2025 Notes

On February 25, 2020, the Company issued $300.0 million in aggregate principal amount of the 2025 Notes for net proceeds of $293.8 million after deducting OID of $2.5 million, underwriting commissions and discounts of $3.0 million and offering costs of $0.7 million. The OID on the 2025 Notes was amortized based on the effective interest method over the term of the 2025 Notes.

Interest on the 2025 Notes was paid semi-annually on February 25 and August 25 at a rate of 3.500% per annum. The 2025 Notes matured on February 25, 2025.

2027 Notes

On May 18, 2021, the Company issued $350.0 million in aggregate principal amount of the 2027 Notes for net proceeds of $344.8 million after deducting OID of $1.0 million, underwriting commissions and discounts of $3.5 million and offering costs of $0.7 million. The OID on the 2027 Notes is amortized based on the effective interest method over the term of the 2027 Notes.

The 2027 Notes were issued pursuant to an indenture, dated April 30, 2012, as supplemented by the sixth supplemental indenture, dated May 18, 2021 (collectively, the "2027 Notes Indenture"), between the Company and the Trustee. The 2027 Notes are the Company's general unsecured obligations that rank senior in right of payment to all of the Company's existing and future indebtedness that is expressly subordinated in right of payment to the 2027 Notes. The 2027 Notes rank equally in right of payment with all of the Company's existing and future liabilities that are not so subordinated. The 2027 Notes effectively rank junior to any of the Company's secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness. The 2027 Notes rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company's subsidiaries, financing vehicles or similar facilities.

Interest on the 2027 Notes is paid semi-annually on January 15 and July 15 at a rate of 2.700% per annum. The 2027 Notes mature on January 15, 2027 and may be redeemed in whole or in part at any time or from time to time at the Company's option prior to maturity at par plus a “make-whole” premium, if applicable. In addition, holders of the 2027 Notes can require the Company to repurchase the 2027 Notes at 100% of their principal amount upon the occurrence of certain change of control events as described in the 2027 Notes Indenture. The 2027 Notes were issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. During the three months ended December 31, 2025, the Company did not repurchase any of the 2027 Notes in the open market.

The 2027 Notes Indenture contains certain covenants, including covenants requiring the Company's compliance with the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) and (2) of the Investment Company Act or any successor provisions (but giving effect to any exemptive relief granted to the Company by the Securities and Exchange Commission (the "SEC"), as well as covenants requiring the Company to provide financial information to the holders of the 2027 Notes and the Trustee if the Company ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). These covenants are subject to limitations and exceptions that are described in the 2027 Notes Indenture.

In connection with the 2027 Notes, the Company entered into an interest rate swap to more closely align the interest rates of its liabilities with its investment portfolio, which consists of predominately floating rate loans. Under the interest rate swap agreement, the Company receives a fixed interest rate of 2.700% and pays a floating interest rate of the three-month SOFR plus 1.658% plus a SOFR adjustment of 0.26161% on a notional amount of $350.0 million. The Company designated the interest rate swap as the hedging instrument in an effective hedge accounting relationship. See Note 12 for more information regarding the interest rate swap.

2029 Notes

On August 15, 2023, the Company issued $300.0 million in aggregate principal amount of the 2029 Notes for net proceeds of $292.9 million after deducting OID of $3.5 million, underwriting commissions and discounts of $3.0 million and offering costs of $0.6 million. The OID on the 2029 Notes is amortized based on the effective interest method over the term of the 2029 Notes.

The 2029 Notes were issued pursuant to an indenture, dated April 30, 2012, as supplemented by the seventh supplemental indenture, dated August 15, 2023 (collectively, the "2029 Notes Indenture"), between the Company and the Trustee. The 2029 Notes are the Company's general unsecured obligations that rank senior in right of payment to all of the Company's existing and future indebtedness that is expressly subordinated in right of payment to the 2029 Notes. The 2029 Notes rank equally in right of payment with all of the Company's existing and future liabilities that are not so subordinated. The 2029 Notes effectively rank junior to any of the Company's secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness. The 2029 Notes rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company's subsidiaries, financing vehicles or similar facilities.

Interest on the 2029 Notes is paid semi-annually on February 15 and August 15 at a rate of 7.100% per annum. The 2029 Notes mature on February 15, 2029 and may be redeemed in whole or in part at any time or from time to time at the Company's option prior to maturity at par plus a “make-whole” premium, if applicable. In addition, holders of the 2029 Notes can require the Company to repurchase the 2029 Notes at 100% of their principal amount upon the occurrence of certain change of control events as described in the 2029 Notes Indenture. The 2029 Notes were issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. During the three months ended December 31, 2025, the Company did not repurchase any of the 2029 Notes in the open market.

The 2029 Notes Indenture contains certain covenants, including covenants requiring the Company's compliance with the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) and (2) of the Investment Company Act or any successor provisions (but giving effect to any exemptive relief granted to the Company by the SEC), as well as covenants requiring the Company to provide financial information to the holders of the 2029 Notes and the Trustee if the Company ceases to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 2029 Notes Indenture.

In connection with the 2029 Notes, the Company entered into an interest rate swap to more closely align the interest rates of its liabilities with its investment portfolio, which consists of predominately floating rate loans. Under the interest rate swap agreement, the Company receives a fixed interest rate of 7.100% and pays a floating interest rate of the three-month SOFR plus 3.1255% on a notional amount of $300.0 million. The Company designated the interest rate swap as the hedging instrument in an effective hedge accounting relationship. See Note 12 for more information regarding the interest rate swap.

2030 Notes

On February 27, 2025, the Company issued $300.0 million in aggregate principal amount of the 2030 Notes for net proceeds of $296.3 million after deducting OID of less than $0.1 million, underwriting commissions and discounts of $3.0 million and offering costs of $0.7 million. The OID on the 2030 Notes is amortized based on the effective interest method over the term of the 2030 Notes.

The 2030 Notes were issued pursuant to an indenture, dated April 30, 2012, as supplemented by the eighth supplemental indenture, dated February 27, 2025 (collectively, the "2030 Notes Indenture"), between the Company and the Trustee. The 2030 Notes are the Company's general unsecured obligations that rank senior in right of payment to all of the Company's existing and future indebtedness that is expressly subordinated in right of payment to the 2030 Notes. The 2030 Notes rank equally in right of payment with all of the Company's existing and future liabilities that are not so subordinated. The 2030 Notes effectively rank junior to any of the Company's secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness. The 2030 Notes rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company's subsidiaries, financing vehicles or similar facilities.

Interest on the 2030 Notes is paid semi-annually on February 27 and August 27 at a rate of 6.340% per annum. The 2030 Notes mature on February 27, 2030 and may be redeemed in whole or in part at any time or from time to time at the Company's option prior to maturity at par plus a “make-whole” premium, if applicable. In addition, holders of the 2030 Notes can require the Company to repurchase the 2030 Notes at 100% of their principal amount upon the occurrence of certain change of control events as described in the 2030 Notes Indenture. The 2030 Notes were issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. During the three months ended December 31, 2025, the Company did not repurchase any of the 2030 Notes in the open market.

The 2030 Notes Indenture contains certain covenants, including covenants requiring the Company's compliance with the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) and (2) of the Investment Company Act or any successor provisions (but giving effect to any exemptive relief granted to the Company by the SEC), as well as covenants requiring the Company to provide financial information to the holders of the 2030 Notes and the Trustee if the Company ceases to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 2030 Notes Indenture.

In connection with the 2030 Notes, the Company entered into an interest rate swap to more closely align the interest rates of its liabilities with its investment portfolio, which consists of predominately floating rate loans. Under the interest rate swap agreement, the Company receives a fixed interest rate of 6.340% and pays a floating interest rate of the three-month SOFR plus 2.192% on a notional amount of $300.0 million. The Company designated the interest rate swap as the hedging instrument in an effective hedge accounting relationship. See Note 12 for more information regarding the interest rate swap.

The below table presents the components of the carrying value of the 2027 Notes, the 2029 Notes and the 2030 Notes as of December 31, 2025 and September 30, 2025:

The below table presents the components of interest and other debt expenses related to the 2027 Notes, the 2029 Notes and the 2030 Notes for the three months ended December 31, 2025:

The below table presents the components of interest and other debt expenses related to the 2025 Notes, the 2027 Notes and the 2029 Notes for the three months ended December 31, 2024:

Note 7. Taxable/Distributable Income and Dividend Distributions

Taxable income differs from net increase (decrease) in net assets resulting from operations primarily due to: (1) unrealized appreciation (depreciation) on investments and foreign currency, as gains and losses are not included in taxable income until they are realized; (2) origination and exit fees received in connection with investments in portfolio companies; (3) organizational costs; (4) income or loss recognition on exited investments; and (5) recognition of interest income on certain loans.

As of September 30, 2025, the Company had net capital loss carryforwards of $699.9 million to offset net capital gains that will not expire, to the extent available and permitted by U.S. federal income tax law, of which $62.8 million are available to offset future short-term capital gains and $637.1 million are available to offset future long-term capital gains. A portion of such net capital loss carryforwards represented a realized loss under sections 382 and 383 of the Code, which is carried forward to future years to offset future gains subject to certain limitations.

Listed below is a reconciliation of "net increase (decrease) in net assets resulting from operations" to taxable income for the three months ended December 31, 2025 and 2024.

(1) The Company's taxable income for the three months ended December 31, 2025 is an estimate and will not be finally determined until the Company files its tax return for the fiscal year ending September 30, 2026. Therefore, the final taxable income may be different than the estimate.

The Company uses the liability method to account for its taxable subsidiaries' income taxes. Using this method, the Company recognizes deferred tax assets and liabilities for the estimated future tax effects attributable to temporary differences between financial reporting and tax bases of assets and liabilities. In addition, the Company recognizes deferred tax benefits associated with net loss carry forwards that it may use to offset future tax obligations. The Company measures deferred tax assets and liabilities using the enacted tax rates expected to apply to taxable income in the years in which it expects to recover or settle those temporary differences.

When assessing the realizability of deferred tax assets, the Company considers whether it is probable that some or all of the deferred tax assets will not be realized. In determining whether the deferred tax assets are realizable, the Company considers the period of expiration of the tax asset, historical and projected taxable income and tax liabilities for the tax jurisdiction in which the tax asset is located. The deferred tax asset recognized by the Company, as it relates to the higher tax basis in the carrying value of certain assets compared to the book basis of those assets, will be recognized in future years by these taxable entities. Deferred tax assets are based on the amount of the tax benefit that the Company’s management has determined is more likely than not to be realized in future periods. In determining the realizability of this tax benefit, management considered numerous factors that will give rise to pre-tax income in future periods. Among these are the historical and expected future book and tax basis pre-tax income of the Company and unrealized gains in the Company’s assets at the determination date. Based on these and other factors, the Company determined that, as of December 31, 2025, $6.4 million of deferred tax assets would not more likely than not be realized in future periods.

For the three months ended December 31, 2025, the Company recognized an expense for income tax related to net investment income of less than $0.1 million, which was composed of current income tax expense. The Company also recognized an expense for income tax related to realized and unrealized gains (losses) of less than $0.1 million, which was composed of deferred income tax expense. For the three months ended December 31, 2024, the Company recognized an expense for income tax related to net investment income of $0.3 million and an expense for income tax related to realized and unrealized gains (losses) of $0.1 million, which was composed primarily of a current income tax expense.

As of September 30, 2025, the Company's last tax year end, the components of accumulated overdistributed earnings on a tax basis were as follows:

The aggregate cost of investments for U.S. federal income tax purposes was $3,088.8 million as of September 30, 2025. As of September 30, 2025, the aggregate gross unrealized appreciation for all investments in which there was an excess of value over cost for U.S. federal income tax purposes was $758.8 million. As of September 30, 2025, the aggregate gross unrealized depreciation for all investments in which there was an excess of cost for U.S. federal income tax purposes over value was $1,000.6 million. Net unrealized depreciation based on the aggregate cost of investments for U.S. federal income tax purposes was $241.8 million.

Note 8. Realized Gains or Losses and Net Unrealized Appreciation or Depreciation

Realized Gains or Losses

Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption and the cost basis of the investment without regard to unrealized appreciation or depreciation previously recognized, and include investments written-off during the period, net of recoveries. Realized losses may also be recorded in connection with the Company's determination that certain investments are considered worthless securities and/or meet the conditions for loss recognition per the applicable tax rules.

During the three months ended December 31, 2025, the Company recorded an aggregate net realized gain of $1.3 million, which consisted of the following:

During the three months ended December 31, 2024, the Company recorded an aggregate net realized loss of $17.3 million, which consisted of the following:

Net Unrealized Appreciation or Depreciation

Net unrealized appreciation or depreciation reflects the net change in the valuation of the portfolio pursuant to the Company's valuation guidelines and the reclassification of any prior period unrealized appreciation or depreciation.

During the three months ended December 31, 2025 and 2024, the Company recorded net unrealized depreciation of $32.4 million and $19.6 million, respectively. For the three months ended December 31, 2025, this consisted of $17.7 million of net unrealized depreciation on debt investments and $15.4 million of net unrealized depreciation on equity investments, partially offset by $0.6 million of net unrealized appreciation related to exited investments (a portion of which resulted in a reclassification to realized losses) and $0.1 million of net unrealized appreciation of foreign currency cash and forward contracts. For the three months ended December 31, 2024, this consisted of $24.3 million of net unrealized depreciation on debt investments and $17.8 million of net unrealized depreciation on equity investments, partially offset by $10.5 million of net unrealized appreciation of foreign currency forward contracts and $12.0 million of net unrealized appreciation related to exited investments (a portion of which resulted in a reclassification to realized losses).

Note 9. Concentration of Credit Risks

The Company deposits its cash with financial institutions and at times such balances are in excess of the FDIC insurance limit. The Company limits its exposure to credit loss by depositing its cash with high credit quality financial institutions and monitoring their financial stability.

Note 10. Related Party Transactions

As of December 31, 2025 and September 30, 2025, the Company had a liability on its Consolidated Statements of Assets and Liabilities in the amount of $8.7 million and $12.5 million, respectively, reflecting the unpaid portion of the base management fees and incentive fees payable to Oaktree.

Investment Advisory Agreement

The Company is party to the Investment Advisory Agreement. Under the Investment Advisory Agreement, the Company pays Oaktree a fee for its services under the Investment Advisory Agreement consisting oftwo components: a base management fee and an incentive fee. The cost of both the base management fee payable to Oaktree and any incentive fees earned by Oaktree is ultimately borne by common stockholders of the Company.

The investment advisory agreement with Oaktree was amended and restated on March 19, 2021 in connection with the closing of the OCSI Merger, on January 23, 2023 in connection with the closing of OSI2 Merger, on November 14, 2024 to reflect a reduced base management fee and on November 14, 2025 to reflect the Incentive Fee Cap (as defined below). The term “Investment Advisory Agreement” refers collectively to the agreements with Oaktree.

Unless earlier terminated as described below, the Investment Advisory Agreement will remain in effect from year-to-year if approved annually by the Board of Directors of the Company or by the affirmative vote of the holders of a majority of the Company’s outstanding voting securities, including, in either case, approval by a majority of the directors of the Company who are not interested persons. The Investment Advisory Agreement will automatically terminate in the event of its assignment. The Investment Advisory Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other. The Investment Advisory Agreement may also be terminated, without penalty, upon the vote of a majority of the outstanding voting securities of the Company.

Base Management Fee

Effective as of July 1, 2024, the base management fee is calculated at an annual rate of 1.00% of total gross assets, including any investment made with borrowings, but excluding cash and cash equivalents; provided, however, that for the period from July 1, 2024 to January 23, 2025, the base management fee shall be calculated at such an annual rate as to cause (1) the base management fee less (2) previously agreed waivers of $750,000 of base management fees per quarter (with such amount appropriately prorated for any partial quarter) to equal 1.00% of the Company’s gross assets, including any investments made with borrowings, but excluding any cash and cash equivalents. The base management fee is payable quarterly in arrears and the fee for any partial month or quarter is appropriately prorated. From May 3, 2019 through June 30, 2024, the base management fee was 1.50% of total gross assets, including any investments made with borrowings, but excluding any cash and cash equivalents, provided that the base management fee on gross assets that exceeded the product of (A)200% and (B) the Company’s net asset value was 1.00%. The 200% was calculated in accordance with the Investment Company Act. In connection with the OCSI Merger, Oaktree waived an aggregate of $6 million of base management fees otherwise payable to Oaktree in thetwo years following the closing of the OCSI Merger on March 19, 2021 at a rate of $750,000 per quarter (with such amount appropriately prorated for any partial quarter). In connection with the OSI2 Merger, Oaktree waived an aggregate of $9.0 million of base management fees payable to Oaktree as follows: $6.0 million at a rate of $1.5 million per quarter (with such amount appropriately prorated for any partial quarter) in the first year following closing of the OSI2 Merger on January 23, 2023 and $3.0 million at a rate of $750,000 per quarter (with such amount appropriately prorated for any partial quarter) in the second year following closing of the OSI2 Merger. Oaktree also waived additional base management fees such that the total amount of waived base management fees (including those waived in connection with the OSI2 Merger described above) was $1.5 million for each of the three months ended March 31, 2024 and June 30, 2024.

For the three months ended December 31, 2025 and 2024, the base management fee incurred under the Investment Advisory Agreement was $7.5 million and $7.4 million (net of waiver), respectively.

Incentive Fee

The incentive fee consists of two parts. Under the Investment Advisory Agreement, effective as of October 1, 2025, the first part of the incentive fee (the “incentive fee on income” or "Part I incentive fee") is calculated and payable quarterly in arrears based upon the amount that (x) the Company’s pre-incentive fee net investment income for the current calendar quarter and each of the eleven preceding calendar quarters beginning with the calendar quarter that commenced October 1, 2024, as the case may be (or the appropriate portion thereof in the case of any of the first eleven calendar quarters commencing on or after

October 1, 2024) (in either case, the “Trailing Twelve Quarters”) exceeds (y) the Preferred Return. The “Preferred Return” will be determined on a quarterly basis and will be calculated by multiplying 1.50% (6.00% annualized) by the sum of the Company’s net asset value at the beginning of each applicable calendar quarter comprising the relevant Trailing Twelve Quarters. The Trailing Twelve Quarters will be a total of less than twelve full fiscal quarters for all periods ending prior to September 30, 2027.

For this purpose, “pre-incentive fee net investment income” means interest income, dividend income and any other income (including any other fees such as commitment, origination, structuring, diligence and consulting fees or other fees that the Company receives from portfolio companies, other than fees for providing managerial assistance) accrued during the fiscal quarter, minus the Company’s operating expenses for the quarter (including the base management fee, expenses payable under the Administration Agreement 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 OID debt, instruments with PIK interest and zero coupon securities), accrued income that the Company has not yet received in cash. Pre-incentive fee net investment income does not include any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation. In addition, pre-incentive fee net investment income does not include any amortization or accretion of any purchase premium or purchase discount to interest income resulting solely from merger-related accounting adjustments in connection with the assets acquired in the OCSI Merger or in the OSI2 Merger, in each case, including any premium or discount paid for the acquisition of such assets, solely to the extent that the inclusion of such merger-related accounting adjustments, in the aggregate, would result in an increase in pre-incentive fee net investment income.

Effective October 1, 2025, under the Investment Advisory Agreement, the calculation of the incentive fee on income for each quarter is as follows:

•No incentive fee on income is payable to Oaktree in any calendar quarter in which the Company’s pre-incentive fee net investment income for the Trailing Twelve Quarters does not exceed the Preferred Return;

•100% of the Company’ pre-incentive fee net investment income for the Trailing Twelve Quarters, if any, that exceeds the Preferred Return but is less than or equal to 1.8182% multiplied by the Company’s net asset value at the beginning of each applicable calendar quarter comprising the relevant Trailing Twelve Quarters. This portion of the incentive fee on income is referred to as the “catch up” and is intended to provide Oaktree with an incentive fee of 17.5% on all of the Company’s pre-incentive fee net investment income when the Company’s pre-incentive fee net investment income during the Trailing Twelve Quarters reaches 1.8182% on net assets during the Trailing Twelve Quarters; and

•For any quarter in which the Company’s pre-incentive fee net investment income for the Trailing Twelve Quarters exceeds 1.8182% multiplied by the Company’s net asset value at the beginning of each applicable calendar quarter comprising the relevant Trailing Twelve Quarters, the incentive fee on income is 17.5% of the amount of the Company’s pre-incentive fee net investment income for such Trailing Twelve Quarters, as the Preferred Return and catch-up will have been achieved.

Effective October 1, 2025, the incentive fee on income as calculated is subject to a cap, or the Incentive Fee Cap. The Incentive Fee Cap in any quarter is the amount equal to (a)17.5% of the Cumulative Pre-Incentive Fee Net Return (as defined below) during the relevant Trailing Twelve Quarters less (b) the aggregate incentive fees on income that were paid to the Adviser in the preceding eleven calendar quarters (or portion thereof) comprising the relevant Trailing Twelve Quarters.

For this purpose, “Cumulative Pre-Incentive Fee Net Return” during the relevant Trailing Twelve Quarters means (x) pre-incentive fee net investment income in respect of the Trailing Twelve Quarters (or portion thereof) less (y) any Net Capital Loss in respect of the Trailing Twelve Quarters (or portion thereof). If, in any quarter, the Incentive Fee Cap is zero or a negative value, the Company shall pay no incentive fee on income to the Adviser in that quarter. If, in any quarter, the Incentive Fee Cap is a positive value but is less than the incentive fee on income calculated in accordance with the calculation described above, the Company shall pay the Adviser the Incentive Fee Cap for such quarter. If, in any quarter, the Incentive Fee Cap was equal to or greater than the incentive fee on income calculated in accordance with the calculation described above, the Company shall pay the Adviser the incentive fee on income for such quarter.

“Net Capital Loss” in respect of a particular period means the difference, if positive, between (i) aggregate capital losses, whether realized or unrealized, in such period and (ii) aggregate capital gains, whether realized or unrealized, in such period.

From October 1, 2024 to September 30, 2025, Oaktree waived the incentive fee on income in such an amount as necessary such that the incentive fee on income in any quarter did not exceed (a)17.5% of the Cumulative Pre-Incentive Fee Net Return (as defined below) during the relevant Trailing Twelve Quarters (or portion thereof) less (b) the aggregate incentive fees on income that were paid to Oaktree (including the effect of waivers, if any) in the preceding eleven calendar quarters (or portion thereof) comprising the relevant Trailing Twelve Quarters.

For the three months ended December 31, 2024, Oaktree waived $6.4 million of Part I incentive fees pursuant to this waiver agreement.

For the three months ended December 31, 2025 and 2024, the Part I incentive fee incurred under the Investment Advisory Agreement was $1.2 million and $1.5 million (net of waiver), respectively.

Under the Investment Advisory Agreement, the second part of the incentive fee (the "capital gains incentive fee") is determined and payable in arrears as of the end of each fiscal year (or upon termination of the Investment Advisory Agreement, as of the termination date) commencing with the fiscal year ended September 30, 2019 and equals 17.5% of the Company’s realized capital gains, if any, on a cumulative basis from the beginning of the fiscal year ended September 30, 2019 through the end of each subsequent fiscal year, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of any previously paid capital gain incentive fees under the Investment Advisory Agreement. Any realized capital gains, realized capital losses, unrealized capital appreciation and unrealized capital depreciation with respect to the Company’s portfolio as of the end of the fiscal year ended September 30, 2018 are excluded from the calculations of the second part of the incentive fee. In addition, the calculation of realized capital gains, realized capital losses and unrealized capital depreciation does (1) not include any such amounts resulting solely from merger-related accounting adjustments in connection with the assets acquired in the OCSI Merger or in the OSI2 Merger, in each case, including any premium or discount paid for the acquisition of such assets, solely to the extent that the inclusion of such merger-related accounting adjustments, in the aggregate, would result in an increase in the capital gains incentive fee, (2) include any such amounts associated with the investments acquired in the OCSI Merger for the period from October 1, 2018 to the date of closing of the OCSI Merger, solely to the extent that the exclusion of such amounts, in the aggregate, would result in an increase in the capital gains incentive fee and (3) include any such amounts associated with the investments acquired in the OSI2 Merger for the period from August 6, 2018 to the date of closing of the OSI2 Merger, solely to the extent that the exclusion of such amounts, in the aggregate, would result in an increase in the capital gains incentive fee. As of December 31, 2025, the Company paid $9.6 million of capital gains incentive fees cumulatively under the Investment Advisory Agreement (net of waivers). For the three months ended December 31, 2025 and 2024, the Company did not incur any capital gains incentive fees.

GAAP requires that the capital gains incentive fee accrual consider the cumulative aggregate unrealized capital appreciation in the calculation, as a capital gains incentive fee would be payable if such unrealized capital appreciation were realized on a theoretical "liquidation basis." A fee so calculated and accrued would not be payable under applicable law and may never be paid based upon the computation of capital gains incentive fees in subsequent periods. Amounts ultimately paid under the Investment Advisory Agreement will be consistent with the formula reflected in the Investment Advisory Agreement. This GAAP accrual is calculated using the aggregate cumulative realized capital gains and losses and aggregate cumulative unrealized capital depreciation included in the calculation of the capital gains incentive fee plus the aggregate cumulative unrealized capital appreciation. Any realized capital gains and losses and cumulative unrealized capital appreciation and depreciation with respect to the Company’s portfolio as of the end of the fiscal year ended September 30, 2018 are excluded from the GAAP accrual. If such amount is positive at the end of a period, then GAAP requires the Company to record a capital gains incentive fee equal to 17.5% of such cumulative amount, less the aggregate amount of actual capital gains incentive fees payable or capital gains incentive fees accrued under GAAP in all prior periods. The resulting accrual for any capital gains incentive fee under GAAP in a given period may result in an additional expense if such cumulative amount is greater than in the prior period or a reversal of previously recorded expense if such cumulative amount is less than in the prior period. If such cumulative amount is negative, then there is no accrual. There can be no assurance that such unrealized capital appreciation will be realized in the future or any accrued capital gains incentive fee will become payable under the Investment Advisory Agreement. For the three months ended December 31, 2025 and 2024, there wereno accrued capital gains incentive fees. As of December 31, 2025, the total accrued capital gains incentive fee liability waszero.

Indemnification

The Investment Advisory Agreement provides that, absent willful misfeasance, bad faith or gross negligence in the performance of their respective duties or by reason of the reckless disregard of their respective duties and obligations, Oaktree and its officers, managers, partners, members (and their members, including the owners of their members), agents, employees, controlling persons and any other person or entity affiliated with it, are entitled to indemnification from the Company for any damages, liabilities, costs and expenses (including reasonable attorneys' fees and amounts reasonably paid in settlement) arising from the rendering of Oaktree's services under the Investment Advisory Agreement or otherwise as investment adviser.

Administrative Services

The Company is party to the Administration Agreement with Oaktree Administrator. Pursuant to the Administration Agreement, Oaktree Administrator provides administrative services to the Company necessary for the operations of the Company, which include providing office facilities, equipment, clerical, bookkeeping and record keeping services at such facilities and such other services as Oaktree Administrator, subject to review by the Company’s Board of Directors, shall from time to time deem to be necessary or useful to perform its obligations under the Administration Agreement. Oaktree Administrator may, on behalf of the Company, conduct relations and negotiate agreements with custodians, trustees, depositories, attorneys, underwriters, brokers and dealers, corporate fiduciaries, insurers, banks and such other persons in any such other capacity deemed to be necessary or desirable. Oaktree Administrator makes reports to the Company’s Board of Directors of its performance of obligations under the Administration Agreement and furnishes advice and recommendations with respect to such other aspects of the Company’s business and affairs, in each case, as it shall determine to be desirable or as reasonably required by the Company’s Board of Directors; provided that Oaktree Administrator shall not provide any investment advice or recommendation.

Oaktree Administrator also provides portfolio collection functions for interest income, fees and warrants and is responsible for the financial and other records that the Company is required to maintain and prepares, prints and disseminates reports to the Company’s stockholders and all other materials filed with the SEC. In addition, Oaktree Administrator assists the Company in determining and publishing the Company’s net asset value, overseeing the preparation and filing of the Company’s tax returns, and generally overseeing the payment of the Company’s expenses and the performance of administrative and professional services rendered to the Company by others. Oaktree Administrator may also offer to provide, on the Company’s behalf, managerial assistance to the Company’s portfolio companies.

For providing these services, facilities and personnel, the Company reimburses Oaktree Administrator the allocable portion of overhead and other expenses incurred by Oaktree Administrator in performing its obligations under the Administration Agreement, including the Company’s allocable portion of the rent of the Company’s principal executive offices (which are located in a building owned by a Brookfield affiliate) at market rates and the Company’s allocable portion of the costs of compensation and related expenses of its Chief Financial Officer, Chief Compliance Officer, their staffs and other non-investment professionals at Oaktree that perform duties for the Company. Such reimbursement is at cost, with no profit to, or markup by, Oaktree Administrator. The Administration Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other. The Administration Agreement may also be terminated, without penalty, upon the vote of a majority of the Company’s outstanding voting securities.

For the three months ended December 31, 2025 and 2024, the Company accrued administrative expenses of $0.7 million and $0.5 million, respectively, including $0.1 million and $0.1 million of general and administrative expenses, respectively.

As of December 31, 2025 and September 30, 2025, $1.7 million and $1.6 million, respectively, was included in “Due to affiliate” in the Consolidated Statements of Assets and Liabilities, reflecting the unpaid portion of administrative expenses and other reimbursable expenses payable to Oaktree Administrator.

Note 11. Financial Highlights