PROSPECT CAPITAL CORP

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of Prospect Capital Corporation

Opinion on the Financial Statements and Financial Highlights

We have audited the accompanying consolidated statements of assets and liabilities of Prospect Capital Corporation (the "Company"), including the consolidated schedules of investments, as of June 30, 2026 and 2025, the related consolidated statements of operations, other comprehensive income, cash flows, changes in net assets and temporary equity, and the financial highlights for each of the three years in the period ended June 30, 2026, and the related notes. In our opinion, the financial statements and financial highlights present fairly, in all material respects, the financial position of the Company as of June 30, 2026 and 2025, and the results of its operations, changes in net assets and temporary equity, cash flows, and the financial highlights for each of the three years in the period ended June 30, 2026, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of June 30, 2026, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated August 20, 2026 expressed an unqualified opinion on the Company's internal control over financial reporting.

Basis for Opinion

These financial statements and financial highlights are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements and financial highlights based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements and financial highlights, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements and financial highlights. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements and financial highlights. Our procedures included confirmation of investments owned as of June 30, 2026 and 2025, by correspondence with the custodian, loan agents, and borrowers; when replies were not received, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that

was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Fair Valuation of Level 3 Investments - Refer to Notes 2 and 3 to the Financial Statements

Critical Audit Matter Description

The Company held certain portfolio investments, classified as Level 3 investments, including First and Second Lien debt,

unsecured debt and equity. The Company's determination of fair value for these Level 3 investments involved subjective judgments and estimates including the selection of valuation methodologies and unobservable inputs.

We identified the valuation of Level 3 investments as a critical audit matter given the significant judgments made by the Company to estimate the fair value. This required a high degree of auditor judgment and extensive audit effort, including the need to involve fair value specialists who possess significant valuation experience, to evaluate the appropriateness of the valuation methodologies and the significant unobservable inputs used by the Company in the determination of fair value.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the valuation of Level 3 investments included the following, among others:

•We tested the design, implementation, and operating effectiveness of the Company's controls over the valuation of Level 3 investments, including those over the selection of valuation methodologies and development of unobservable inputs.

•We evaluated the appropriateness of the valuation methodologies and the reasonableness of the significant unobservable inputs. For a selection of Level 3 investments, we utilized the assistance of our fair value specialists to perform our audit procedures.

•With the assistance of our fair value specialists, we developed independent fair value estimates and compared our estimates to the Company's concluded values for a selection of Level 3 investments.

•We evaluated management's ability to reasonably estimate fair value by comparing management's historical estimates of fair value to subsequent transactions, taking into account changes in market or investment specific conditions, where applicable.