PSEC / Prospect Capital Corporation - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

Prospect Capital Corporation
US ˙ NasdaqGS ˙ US74348T1025

Grundläggande statistik
LEI 549300FSD8T39P5Q0O47
CIK 1287032
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Prospect Capital Corporation
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
June 1, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated June 1, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes

The information in this preliminary pricing supplement is not complete and may be changed.

May 29, 2026 EX-99.(D)(804)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(804) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 29, 2026 EX-99.(D)(805)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(805) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 29, 2026 POS EX

As filed with the Securities and Exchange Commission on May 29, 2026

As filed with the Securities and Exchange Commission on May 29, 2026 Registration No.

May 29, 2026 EX-99.(D)(806)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(806) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 26, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated May 26, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes

The information in this preliminary pricing supplement is not complete and may be changed.

May 26, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 7.

May 26, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1664, 1665 and 1666 — Dated Tuesday, May 26, 2026 (To: Prospectus

May 18, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated May 18, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes

The information in this preliminary pricing supplement is not complete and may be changed.

May 11, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated May 11, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes

The information in this preliminary pricing supplement is not complete and may be changed.

May 8, 2026 EX-3.1

PROSPECT CAPITAL CORPORATION ARTICLES SUPPLEMENTARY 5.35% SERIES A FIXED RATE CUMULATIVE PERPETUAL PREFERRED STOCK

Exhibit 3.1 PROSPECT CAPITAL CORPORATION ARTICLES SUPPLEMENTARY 5.35% SERIES A FIXED RATE CUMULATIVE PERPETUAL PREFERRED STOCK Prospect Capital Corporation, a Maryland corporation (the “Corporation”), hereby certifies to the State Department of Assessments and Taxation of Maryland as follows: 1.Pursuant to the authority expressly vested in the Board of Directors of the Corporation (the “Board”) by

May 8, 2026 EX-1.1

PROSPECT CAPITAL CORPORATION Up to $400,000,000 Aggregate Liquidation Preference Shares of 5.35% Series A Fixed Rate Cumulative Perpetual Preferred Stock EQUITY DISTRIBUTION AGREEMENT

PROSPECT CAPITAL CORPORATION Up to $400,000,000 Aggregate Liquidation Preference Shares of 5.

May 8, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 8, 2026 Prospect Capital Corp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 8, 2026 Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Commission File Number) (IR

May 8, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Preferred Stock Rule 457(c) (1) 16,000,000 $17.

May 8, 2026 424B2

Prospect Capital Corporation Up to $400,000,000 Aggregate Liquidation Preference 5.35% Series A Fixed Rate Cumulative Perpetual Preferred Stock (Liquidation Preference $25.00 per Share)

Filed pursuant to Rule 424(b)(2) File No. 333-293349 PROSPECTUS SUPPLEMENT (To Prospectus dated February 10, 2026) Prospect Capital Corporation Up to $400,000,000 Aggregate Liquidation Preference 5.35% Series A Fixed Rate Cumulative Perpetual Preferred Stock (Liquidation Preference $25.00 per Share) Prospect Capital Corporation, a Maryland corporation ("we", "us", "our" and "Company"), is a financ

May 7, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00659 PROSPECT CAPITAL CORPORATION (Exact name of registrant

May 7, 2026 EX-99.(D)(802)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(802) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 7, 2026 EX-3.20

PROSPECT CAPITAL CORPORATION ARTICLES SUPPLEMENTARY

Exhibit 3.20 PROSPECT CAPITAL CORPORATION ARTICLES SUPPLEMENTARY Prospect Capital Corporation, a Maryland corporation (the “Corporation”), hereby certifies to the State Department of Assessments and Taxation of Maryland (the “SDAT”) as follows: FIRST: Pursuant to the authority expressly vested in the Board of Directors of the Corporation (the “Board”) by Article V of the charter of the Corporation

May 7, 2026 EX-99.(D)(801)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(801) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 7, 2026 EX-99.1

Prospect Capital Announces March 2026 Results

Exhibit 99.1 Prospect Capital Announces March 2026 Results NEW YORK, May 7, 2026 (GLOBE NEWSWIRE) – Prospect Capital Corporation (NASDAQ: PSEC) (“Prospect”, “our”, or “we”) today announced financial results for our fiscal quarter ended March 31, 2026. FINANCIAL RESULTS All amounts in $000’s except per share amounts (on weighted average basis for period numbers) Quarter Ended Quarter Ended Quarter

May 7, 2026 EX-99.(D)(803)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(803) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

May 7, 2026 POS EX

As filed with the Securities and Exchange Commission on May 7, 2026

As filed with the Securities and Exchange Commission on May 7, 2026 Registration No.

May 7, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 7, 2026 Prospect Capital Corp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 7, 2026 Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Commission File Number) (IR

May 4, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 7.

May 4, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1658, 1659 and 1660 — Dated Monday, May 4, 2026 (To: Prospectus D

April 30, 2026 EX-99.(D)(800)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(800) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 30, 2026 POS EX

As filed with the Securities and Exchange Commission on April 30, 2026

As filed with the Securities and Exchange Commission on April 30, 2026 Registration No.

April 30, 2026 EX-99.(D)(799)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(799) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 30, 2026 EX-99.(D)(798)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(798) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 27, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 7.

April 27, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1655, 1656 and 1657 — Dated Monday, April 27, 2026 (To: Prospectu

April 27, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated April 27, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 7.250% Notes due 2029 (the "2029 Notes") 7.500% Notes due 2031 (the "2031 Notes") 7.750% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

April 23, 2026 EX-99.(D)(796)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(796) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 23, 2026 EX-99.(D)(797)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(797) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 23, 2026 EX-99.(D)(795)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(795) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 23, 2026 POS EX

As filed with the Securities and Exchange Commission on April 23, 2026

As filed with the Securities and Exchange Commission on April 23, 2026 Registration No.

April 20, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 7.

April 20, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1652, 1653 and 1654 — Dated Monday, April 20, 2026 (To: Prospectu

April 20, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated April 20, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

April 16, 2026 EX-99.(D)(794)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(794) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 16, 2026 POS EX

As filed with the Securities and Exchange Commission on April 16, 2026

As filed with the Securities and Exchange Commission on April 16, 2026 Registration No.

April 16, 2026 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 16, 2026 EX-99.(D)(792)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(792) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 16, 2026 EX-99.(D)(793)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(793) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 13, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.750% Notes due 2029 (the "2029 Notes") 7.000% Notes due 2031 (the "2031 Notes") 7.250% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.750% Notes due 2029 (the "2029 Notes") 7.000% Notes due 2031 (the "2031 Notes") 7.250% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1649, 1650 and 1651 — Dated Monday, April 13, 2026 (To: Prospectu

April 13, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

April 13, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated April 13, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 7.000% Notes due 2029 (the "2029 Notes") 7.250% Notes due 2031 (the "2031 Notes") 7.500% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

April 9, 2026 EX-99.(D)(790)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(790) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 9, 2026 POS EX

As filed with the Securities and Exchange Commission on April 9, 2026

As filed with the Securities and Exchange Commission on April 9, 2026 Registration No.

April 9, 2026 EX-99.(D)(791)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(791) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 9, 2026 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 9, 2026 EX-99.(D)(789)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(789) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 6, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1646, 1647 and 1648 — Dated Monday, April 6, 2026 (To: Prospectus

April 6, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

April 6, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated April 6, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.750% Notes due 2029 (the "2029 Notes") 7.000% Notes due 2031 (the "2031 Notes") 7.250% Notes due 2033 (the "2033 Note

The information in this preliminary pricing supplement is not complete and may be changed.

April 2, 2026 EX-99.(D)(788)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(788) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 2, 2026 POS EX

As filed with the Securities and Exchange Commission on April 2, 2026

As filed with the Securities and Exchange Commission on April 2, 2026 Registration No.

April 2, 2026 EX-99.(D)(787)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(787) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

April 2, 2026 EX-99.(D)(786)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(786) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 30, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

March 30, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1643, 1644 and 1645 — Dated Monday, March 30, 2026 (To: Prospectu

March 30, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated March 30, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

March 27, 2026 APP NTC

APP NTC

SECURITIES AND EXCHANGE COMMISSION Investment Company Act Release No. 35819; File No. 812-15849 Prospect Capital Corporation, et al. December 9, 2025. AGENCY: Securities and Exchange Commission (“Commission” or “SEC”). ACTION: Notice. Notice of application for an order under sections 17(d) and 57(i) of the Investment Company Act of 1940 (the “Act”) and rule 17d-1 under the Act to permit certain jo

March 26, 2026 EX-99.(D)(783)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(783) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 26, 2026 EX-99.(D)(784)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(784) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 26, 2026 EX-99.(D)(785)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(785) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 26, 2026 POS EX

As filed with the Securities and Exchange Commission on March 26, 2026

As filed with the Securities and Exchange Commission on March 26, 2026 Registration No.

March 23, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1640, 1641 and 1642 — Dated Monday, March 23, 2026 (To: Prospectu

March 23, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

March 23, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated March 23, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

March 19, 2026 EX-99.(D)(780)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(780) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 19, 2026 POS EX

As filed with the Securities and Exchange Commission on March 19, 2026

As filed with the Securities and Exchange Commission on March 19, 2026 Registration No.

March 19, 2026 EX-99.(D)(781)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(781) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 19, 2026 EX-99.(D)(782)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(782) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 16, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated March 16, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Not

The information in this preliminary pricing supplement is not complete and may be changed.

March 16, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

March 16, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1637, 1638 and 1639 — Dated Monday, March 16, 2026 (To: Prospectu

March 12, 2026 POS EX

As filed with the Securities and Exchange Commission on March 12, 2026

As filed with the Securities and Exchange Commission on March 12, 2026 Registration No.

March 12, 2026 EX-99.(D)(777)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(777) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 12, 2026 EX-99.(D)(779)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(779) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 12, 2026 EX-99.(D)(778)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(778) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 11, 2026 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 11, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Defin

March 9, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1634, 1635 and 1636 — Dated Monday, March 9, 2026 (To: Prospectus

March 9, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

March 9, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated March 9, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Note

The information in this preliminary pricing supplement is not complete and may be changed.

March 5, 2026 EX-99.(D)(776)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(776) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 5, 2026 EX-99.(D)(774)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(774) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 5, 2026 EX-99.(D)(775)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(775) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

March 5, 2026 POS EX

As filed with the Securities and Exchange Commission on March 5, 2026

As filed with the Securities and Exchange Commission on March 5, 2026 Registration No.

March 2, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

March 2, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated March 2, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Note

The information in this preliminary pricing supplement is not complete and may be changed.

March 2, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1631, 1632 and 1633 — Dated Monday, March 2, 2026 (To: Prospectus

February 27, 2026 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: x Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

February 26, 2026 EX-99.(D)(771)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(771) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 26, 2026 POS EX

As filed with the Securities and Exchange Commission on February 26, 2026

As filed with the Securities and Exchange Commission on February 26, 2026 Registration No.

February 26, 2026 EX-99.(D)(772)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(772) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 26, 2026 EX-99.(D)(773)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(773) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 23, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

February 23, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated February 23, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033

The information in this preliminary pricing supplement is not complete and may be changed.

February 23, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1628, 1629 and 1630 — Dated Monday, February 23, 2026 (To: Prospe

February 20, 2026 EX-99.(D)(768)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(768) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 20, 2026 EX-99.(D)(770)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(770) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 20, 2026 POS EX

As filed with the Securities and Exchange Commission on February 20, 2026

As filed with the Securities and Exchange Commission on February 20, 2026 Registration No.

February 20, 2026 EX-99.(D)(769)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(769) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 17, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Debt 6.

February 17, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated February 17, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033

The information in this preliminary pricing supplement is not complete and may be changed.

February 17, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-293349 Pricing Supplement No. 1625, 1626 and 1627 — Dated Tuesday, February 17, 2026 (To: Prosp

February 10, 2026 EX-99.(N)(1)

POWER OF ATTORNEY

Exhibit (n)(1) POWER OF ATTORNEY The undersigned officers and/or directors of Prospect Capital Corporation, a corporation formed under the laws of the State of Maryland (the “Company”), do hereby constitute and appoint John F.

February 10, 2026 EX-99.(N)(2)

Consent of Independent Registered Public Accounting Firm

Exhibit (n)(2) Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in this Registration Statement on Form N-2 of Prospect Capital Corporation of our reports dated August 26, 2025, relating to the consolidated financial statements of Prospect Capital Corporation and the effectiveness of Prospect Capital Corporation’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Prospect Capital Corporation for the year ended June 30, 2025.

February 10, 2026 424B2

Prospect Capital Corporation Maximum of 30,000,000 Shares Up to $750,000,000 Aggregate Liquidation Preference 7.50% Series A5 Preferred Stock (the “Series A5 Shares”) 7.50% Series M5 Preferred Stock (the “Series M5 Shares”)

Filed pursuant to Rule 424b2 File No. 333-293349 PROSPECTUS SUPPLEMENT (To Prospectus dated February 10, 2026) Prospect Capital Corporation Maximum of 30,000,000 Shares Up to $750,000,000 Aggregate Liquidation Preference 7.50% Series A5 Preferred Stock (the “Series A5 Shares”) 7.50% Series M5 Preferred Stock (the “Series M5 Shares”) This is an offering by Prospect Capital Corporation of up to 30,0

February 10, 2026 EX-99.(N)(3)

Consent of Independent Auditor

Exhibit (n)(3) Consent of Independent Auditor We consent to the incorporation by reference in the Registration Statement on Form N-2 of Prospect Capital Corporation of our report dated July 15, 2025, relating to the consolidated financial statements of National Property REIT Corp.

February 10, 2026 EX-99.(L)(2)

Simpson Thacher & Bartlett LLP 855 Boylston Street, 9th Floor Boston, MA 02116 TELEPHONE: +1-212-455-2000 FACSIMILE: +1-212-455-2502

Exhibit (l)(2) Simpson Thacher & Bartlett LLP 855 Boylston Street, 9th Floor Boston, MA 02116 TELEPHONE: +1-212-455-2000 FACSIMILE: +1-212-455-2502 February 10, 2026 Prospect Capital Corporation 10 East 40th Street New York, NY 10016 Ladies and Gentlemen: We have acted as counsel to Prospect Capital Corporation, a Maryland corporation (the “Company”), in connection with the Registration Statement

February 10, 2026 EX-99.(J)(1)

FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT dated as of August 29, 2014 among PROSPECT CAPITAL FUNDING LLC, as Borrower, PROSPECT CAPITAL CORPORATION

Exhibit (j)(1) EXECUTION COPY FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT dated as of August 29, 2014 among PROSPECT CAPITAL FUNDING LLC, as Borrower, PROSPECT CAPITAL CORPORATION as Seller and Servicer KEYBANK NATIONAL ASSOCIATION, as Facility Agent, and U.

February 10, 2026 EX-99.(J)(6)

PRELIMINARY STATEMENTS

Exhibit (j)(6) THIRD AMENDMENT TO FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT THIS THIRD AMENDMENT dated as of September 9, 2019 (this “Amendment”) to the FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT dated as of August 29, 2014, as amended by the First Amendment to Fourth Amended and Restated Custody Agreement, dated as of August 22, 2016, and the Second Amendment to Fourth Amended and Restated Custody Agreement, dated as of August 1, 2018 (the “Existing Agreement” and, as amended by this Amendment, the “Agreement”) among PROSPECT CAPITAL CORPORATION, a Maryland corporation (“Prospect”), as servicer (the “Servicer”), U.

February 10, 2026 EX-99.(J)(5)

PRELIMINARY STATEMENTS

Exhibit (j)(5) [EXECUTION COPY] SECOND AMENDMENT TO FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT SECOND AMENDMENT dated as of August 1, 2018 (this “Amendment”) to the FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT dated as of August 29, 2014, as amended by the First Amendment to Fourth Amended and Restated Custody Agreement dated as of August 22, 2016 (the “Existing Agreement” and, as amended by this Amendment, the “Agreement”) among PROSPECT CAPITAL CORPORATION, a Maryland corporation (“Prospect”), as servicer (the “Servicer”), U.

February 10, 2026 EX-99.(D)(2)

securities and exchange commission Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to

Exhibit (d)(2) securities and exchange commission Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ☐ U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S.

February 10, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registratio

February 10, 2026 EX-99.(L)(1)

[LETTERHEAD OF VENABLE LLP] February 10, 2026

Exhibit (l)(1) [LETTERHEAD OF VENABLE LLP] February 10, 2026 Prospect Capital Corporation 10 East 40th Street, 42nd Floor New York, New York 10016 Re: Registration Statement on Form N-2 Ladies and Gentlemen: We have served as Maryland counsel to Prospect Capital Corporation, a Maryland corporation (the “Company”) and a business development company under the Investment Company Act of 1940, as amended (the “1940 Act”), in connection with certain matters of Maryland law arising out of the registration of the following securities of the Company (collectively, the “Securities”): (i) shares (“Common Shares”) of common stock, $.

February 10, 2026 EX-99.(R)

CODE OF ETHICS PROSPECT CAPITAL CORPORATION PROSPECT CAPITAL MANAGEMENT L.P. PROSPECT FLOATING RATE AND ALTERNATIVE INCOME FUND, Inc. (Board Approved: August 22, 2025)

Exhibit (r) CODE OF ETHICS FOR PROSPECT CAPITAL CORPORATION PROSPECT CAPITAL MANAGEMENT L.

February 10, 2026 N-2ASR

As filed with the Securities and Exchange Commission on February 10, 2026

As filed with the Securities and Exchange Commission on February 10, 2026 Securities Act Registration No.

February 10, 2026 EX-99.(N)(4)

Consent of Independent Auditor

Exhibit (n)(4) Consent of Independent Auditor We consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement on Form N-2 of our report dated August 10, 2023, on our audits of the combined consolidated financial statements of National Property REIT Corp.

February 10, 2026 EX-FILING FEES

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Preferred Stock Rule 457(o) (1) $396,732,754.

February 10, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes®

Filed pursuant to Rule 424(b)(2) File No. 333-293349 PROSPECTUS SUPPLEMENT (To Prospectus dated February 10, 2026) Prospect Capital Corporation Prospect Capital InterNotes® •We may offer to sell our Prospect Capital InterNotes® from time to time. The specific terms of the notes will be set prior to the time of sale and described in a pricing supplement. You should read this prospectus supplement,

February 10, 2026 EX-99.(J)(4)

PRELIMINARY STATEMENTS

Exhibit (j)(4) [EXECUTION COPY] FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT FIRST AMENDMENT dated as of August 22, 2016 (this “Amendment”) to the FOURTH AMENDED AND RESTATED CUSTODY AGREEMENT dated as of August 29, 2014 (the “Existing Agreement” and, as amended by this Amendment, the “Agreement”) among PROSPECT CAPITAL CORPORATION, a Maryland corporation (“Prospect”), as servicer (the “Servicer”), U.

February 10, 2026 EX-99.(N)(5)

Consent of Independent Auditor

Exhibit (n)(5) Consent of Independent Auditor Prospect Capital Corporation New York, New York We consent to the incorporation by reference in this Registration Statement on Form N-2 and Related Prospectus of Prospect Capital Corporation of our report dated August 26, 2025, relating to the consolidated financial statements of First Tower Company LLC and Subsidiaries appearing in the Annual Report on Form 10-K of Prospect Capital Corporation for the year ended June 30, 2025.

February 9, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 9, 2026 Prospect Capital

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 9, 2026 Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Commission File Number

February 9, 2026 EX-99.1

Prospect Capital Announces Financial Results for December 2025

Exhibit 99.1 Prospect Capital Announces Financial Results for December 2025 NEW YORK, February 9, 2026 (GLOBE NEWSWIRE) – Prospect Capital Corporation (NASDAQ: PSEC) (“Prospect”, “our”, or “we”) today announced financial results for our fiscal quarter ended December 31, 2025. FINANCIAL RESULTS All amounts in $000’s except per share amounts (on weighted average basis for period numbers) Quarter End

February 9, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2025 OR ☐ TRANSITION REPORT PURSUA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00659 PROSPECT CAPITAL CORPORATION (Exact name of registr

February 9, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated February 9, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 N

The information in this preliminary pricing supplement is not complete and may be changed.

February 9, 2026 EX-10.1

Amendment No. 1 to Selling Agent Agreement, dated November 13, 2023, by and among, the Registrant, Prospect Capital Management L.P., Prospect Administration LLC, InspereX LLC and the other Agents named therein

AMENDMENT NO. 1 TO SELLING AGENT AGREEMENT This Amendment No. 1 to Selling Agent Agreement (this “Amendment”) is dated as of November 13, 2023 and amends that certain Selling Agent Agreement (the “Selling Agent Agreement”), dated as of February 13, 2020, by and among Prospect Capital Corporation, a Maryland corporation (the “Company”), Prospect Capital Management L.P., a Delaware limited partnersh

February 5, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

February 5, 2026 EX-99.(D)(766)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(766) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 5, 2026 EX-99.(D)(767)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(767) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 5, 2026 EX-99.(D)(765)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(765) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

February 5, 2026 POS EX

As filed with the Securities and Exchange Commission on February 5, 2026

As filed with the Securities and Exchange Commission on February 5, 2026 Registration No.

February 2, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1622, 1623 and 1624 — Dated Monday, February 2, 2026 (To: Prospec

January 29, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

January 29, 2026 EX-99.(D)(762)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(762) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 29, 2026 EX-99.(D)(763)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(763) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 29, 2026 EX-99.(D)(764)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(764) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 29, 2026 POS EX

As filed with the Securities and Exchange Commission on January 29, 2026

As filed with the Securities and Exchange Commission on January 29, 2026 Registration No.

January 26, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1619, 1620 and 1621 — Dated Monday, January 26, 2026 (To: Prospec

January 26, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated January 26, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 N

The information in this preliminary pricing supplement is not complete and may be changed.

January 23, 2026 EX-99.(D)(760)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(760) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 23, 2026 EX-99.(D)(759)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(759) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 23, 2026 POS EX

As filed with the Securities and Exchange Commission on January 23, 2026

As filed with the Securities and Exchange Commission on January 23, 2026 Registration No.

January 23, 2026 EX-99.(D)(761)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(761) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 23, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

January 20, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated January 20, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 N

The information in this preliminary pricing supplement is not complete and may be changed.

January 20, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1616, 1617 and 1618 — Dated Tuesday, January 20, 2026 (To: Prospe

January 15, 2026 EX-99.(D)(758)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(758) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 15, 2026 POS EX

As filed with the Securities and Exchange Commission on January 15, 2026

As filed with the Securities and Exchange Commission on January 15, 2026 Registration No.

January 15, 2026 EX-99.(D)(757)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(757) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 15, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

January 15, 2026 EX-99.(D)(756)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(756) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 15, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 15, 2026 Prospect Capital

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 15, 2026 Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Commission File Number

January 12, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1613, 1614 and 1615 — Dated Monday, January 12, 2026 (To: Prospec

January 12, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated January 12, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 N

The information in this preliminary pricing supplement is not complete and may be changed.

January 8, 2026 EX-99.(D)(755)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(755) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 8, 2026 EX-99.(D)(754)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(754) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 8, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

January 8, 2026 EX-99.(D)(753)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(753) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 8, 2026 POS EX

As filed with the Securities and Exchange Commission on January 8, 2026

As filed with the Securities and Exchange Commission on January 8, 2026 Registration No.

January 8, 2026 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

January 5, 2026 424B2

Subject to completion Preliminary Pricing Supplement dated January 5, 2026 Prospect Capital Corporation Prospect Capital InterNotes® 6.500% Notes due 2029 (the "2029 Notes") 6.750% Notes due 2031 (the "2031 Notes") 7.000% Notes due 2033 (the "2033 No

The information in this preliminary pricing supplement is not complete and may be changed.

January 5, 2026 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1610, 1611 and 1612 — Dated Monday, January 5, 2026 (To: Prospect

January 2, 2026 POS EX

As filed with the Securities and Exchange Commission on January 2, 2026

As filed with the Securities and Exchange Commission on January 2, 2026 Registration No.

January 2, 2026 EX-99.(D)(752)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(752) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 2, 2026 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

January 2, 2026 EX-99.(D)(751)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(751) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

January 2, 2026 EX-99.(D)(750)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(750) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 29, 2025 POS EX

As filed with the Securities and Exchange Commission on December 29, 2025

As filed with the Securities and Exchange Commission on December 29, 2025 Registration No.

December 29, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

December 29, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated December 29, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033

The information in this preliminary pricing supplement is not complete and may be changed.

December 29, 2025 EX-99.(D)(748)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(748) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 29, 2025 EX-99.(D)(747)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(747) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 29, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033 Notes" and together with the 2029 Notes and the 2031 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1607, 1608 and 1609 — Dated Monday, December 29, 2025 (To: Prospe

December 29, 2025 EX-99.(D)(749)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(749) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 22, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated December 22, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2029 (the "2029 Notes") 6.500% Notes due 2031 (the "2031 Notes") 6.750% Notes due 2033 (the "2033

The information in this preliminary pricing supplement is not complete and may be changed.

December 22, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1604, 1605 and 1606 — Dated Monday, December 22, 2025 (To: Prospe

December 18, 2025 EX-99.(D)(745)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(745) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 18, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

December 18, 2025 EX-99.(D)(746)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(746) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 18, 2025 POS EX

As filed with the Securities and Exchange Commission on December 18, 2025

As filed with the Securities and Exchange Commission on December 18, 2025 Registration No.

December 18, 2025 EX-99.(D)(744)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(744) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 16, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

December 15, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1601, 1602 and 1603 — Dated Monday, December 15, 2025 (To: Prospe

December 15, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated December 15, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032

The information in this preliminary pricing supplement is not complete and may be changed.

December 11, 2025 EX-99.(D)(743)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(743) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 11, 2025 EX-99.(D)(742)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(742) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 11, 2025 POS EX

As filed with the Securities and Exchange Commission on December 11, 2025

As filed with the Securities and Exchange Commission on December 11, 2025 Registration No.

December 11, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

December 11, 2025 EX-99.(D)(741)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(741) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 8, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1598, 1599 and 1600 — Dated Monday, December 8, 2025 (To: Prospec

December 8, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated December 8, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 N

The information in this preliminary pricing supplement is not complete and may be changed.

December 4, 2025 EX-99.(D)(738)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(738) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 4, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

December 4, 2025 EX-99.(D)(739)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(739) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 4, 2025 POS EX

As filed with the Securities and Exchange Commission on December 4, 2025

As filed with the Securities and Exchange Commission on December 4, 2025 Registration No.

December 4, 2025 EX-99.(D)(740)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(740) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

December 1, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated December 1, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 N

The information in this preliminary pricing supplement is not complete and may be changed.

December 1, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1595, 1596 and 1597 — Dated Monday, December 1, 2025 (To: Prospec

November 28, 2025 EX-99.(D)(735)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(735) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 28, 2025 EX-99.(D)(737)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(737) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 28, 2025 EX-99.(D)(736)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(736) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 28, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

November 28, 2025 POS EX

As filed with the Securities and Exchange Commission on November 28, 2025

As filed with the Securities and Exchange Commission on November 28, 2025 Registration No.

November 24, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated November 24, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032

The information in this preliminary pricing supplement is not complete and may be changed.

November 24, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1592, 1593 and 1594 — Dated Monday, November 24, 2025 (To: Prospe

November 20, 2025 EX-99.(D)(733)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(733) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 20, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

November 20, 2025 POS EX

As filed with the Securities and Exchange Commission on November 20, 2025

As filed with the Securities and Exchange Commission on November 20, 2025 Registration No.

November 20, 2025 EX-99.(D)(734)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(734) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 20, 2025 EX-99.(D)(732)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(732) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 17, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated November 17, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032

The information in this preliminary pricing supplement is not complete and may be changed.

November 17, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1589, 1590 and 1591 — Dated Monday, November 17, 2025 (To: Prospe

November 10, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated November 10, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032

The information in this preliminary pricing supplement is not complete and may be changed.

November 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 6, 2025 Prospect Capital

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 6, 2025 Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Commission File Number

November 6, 2025 EX-99.(D)(730)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(730) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 6, 2025 EX-99.1

Prospect Capital Announces Financial Results for September 2025

Exhibit 99.1 Prospect Capital Announces Financial Results for September 2025 NEW YORK, November 6, 2025 (GLOBE NEWSWIRE) – Prospect Capital Corporation (NASDAQ: PSEC) (“Prospect”, “our”, or “we”) today announced financial results for our fiscal quarter ended September 30, 2025. FINANCIAL RESULTS All amounts in $000’s except per share amounts (on weighted average basis for period numbers) Quarter E

November 6, 2025 EX-99.(D)(729)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(729) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 6, 2025 POS EX

As filed with the Securities and Exchange Commission on November 6, 2025

As filed with the Securities and Exchange Commission on November 6, 2025 Registration No.

November 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 814-00659 PROSPECT CAPITAL CORPORATION (Exact name of regist

November 6, 2025 EX-99.(D)(731)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(731) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

November 6, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

November 3, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1586, 1587 and 1588 — Dated Monday, November 3, 2025 (To: Prospec

October 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 31, 2025 (October 28, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 31, 2025 (October 28, 2025) Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Com

October 31, 2025 EX-10.1

Prospect Capital Corporation Deed of Trust For Bonds Offered to the Public Prepared and executed on the 28 day of October 2025 Between Prospect Capital Corporation and Mishmeret Trust Company Ltd. Table of Contents

Exhibit 10.1 Prospect Capital Corporation Deed of Trust For Bonds Offered to the Public Prepared and executed on the 28 day of October 2025 Between Prospect Capital Corporation and Mishmeret Trust Company Ltd. Table of Contents Section Subject Page Deed of Trust 1 Preamble, Interpretation and Definitions 2 2 Issuance of the Bonds 10 3 Appointing the Trustee and the Duties Thereof 16 4 Powers of th

October 30, 2025 EX-99.(D)(726)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(726) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 30, 2025 POS EX

As filed with the Securities and Exchange Commission on October 30, 2025

As filed with the Securities and Exchange Commission on October 30, 2025 Registration No.

October 30, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

October 30, 2025 EX-99.(D)(728)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(728) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 30, 2025 EX-99.(D)(727)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(727) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 30, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

October 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 28, 2025 (October 27, 202

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 28, 2025 (October 27, 2025) Prospect Capital Corporation (Exact name of registrant as specified in its charter) Maryland 814-00659 43-2048643 (State or other jurisdiction (Com

October 28, 2025 EX-99.1

Prospect Capital Corporation Announces Pricing of $167 Million 5.5% Oversubscribed Institutional Unsecured Notes Offering

Exhibit 99.1 Prospect Capital Corporation Announces Pricing of $167 Million 5.5% Oversubscribed Institutional Unsecured Notes Offering NEW YORK, October 28, 2025 (GLOBE NEWSWIRE) - Prospect Capital Corporation (NASDAQ: PSEC) (“Prospect”, “our”, or “we”) announced today that Prospect priced an institutional offering of approximately $167 million in aggregate principal amount of 5.5% Series A Notes

October 27, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1583, 1584 and 1585 — Dated Monday, October 27, 2025 (To: Prospec

October 27, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated October 27, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 N

The information in this preliminary pricing supplement is not complete and may be changed.

October 23, 2025 EX-99.(D)(725)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(725) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 23, 2025 EX-99.(D)(724)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(724) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 23, 2025 POS EX

As filed with the Securities and Exchange Commission on October 23, 2025

As filed with the Securities and Exchange Commission on October 23, 2025 Registration No.

October 23, 2025 EX-99.(S)

Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Car

Exhibit (s) Calculation of Filing Fee Tables FORM N-2 (Form Type) PROSPECT CAPITAL CORPORATION (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Fees Previously Paid Carry Forward Securities Debt 6.

October 23, 2025 EX-99.(D)(723)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(723) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 21, 2025 424B2

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes")

Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 Notes" and together with the 2028 Notes and the 2030 Notes, the "Notes") Filed under Rule 424(b)(2), Registration Statement No. 333-269714 Pricing Supplement No. 1580, 1581 and 1582 — Dated Monday, October 20, 2025 (To: Prospec

October 21, 2025 424B2

Subject to completion Preliminary Pricing Supplement dated October 20, 2025 Prospect Capital Corporation Prospect Capital InterNotes® 6.250% Notes due 2028 (the "2028 Notes") 6.500% Notes due 2030 (the "2030 Notes") 6.750% Notes due 2032 (the "2032 N

The information in this preliminary pricing supplement is not complete and may be changed.

October 17, 2025 EX-99.(D)(721)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee SUPPLEMENTAL INDENTURE

Exhibit (d)(721) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 17, 2025 POS EX

As filed with the Securities and Exchange Commission on October 17, 2025

As filed with the Securities and Exchange Commission on October 17, 2025 Registration No.

October 17, 2025 EX-99.(D)(722)

SUPPLEMENTAL INDENTURE PROSPECT CAPITAL CORPORATION U.S. BANK TRUST COMPANY NATIONAL ASSOCIATION (successor in interest to U.S. BANK NATIONAL ASSOCIATION), as Trustee

Exhibit (d)(722) SUPPLEMENTAL INDENTURE between PROSPECT CAPITAL CORPORATION and U.

October 17, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

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