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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

X0202 SCHEDULE 13D/A 0001294357 XXXXXXXX LIVE 12 Common Stock, par value $ 0.001 per share 05/19/2026 false 0001287032 74348T102 PROSPECT CAPITAL CORP 10 EAST 40TH STREET 44TH FL NEW YORK NY 10016 John F. Barry III 212-448-1858 700 S. Rosemary Avenue, Suite 204 West Palm Beach, FL, 33401 West Palm Beach FL 33401 0001294357 N Barry John F OO WC PF N X1 130184416.49 426119.38 130184416.49 426119.38 130610615.87 N 26.1 IN 0002009659 N John & Daria Barry Foundation OO WC N FL 43727065.61 0.00 43727065.61 0.00 43727065.61 N 8.7 OO Common Stock, par value $ 0.001 per share PROSPECT CAPITAL CORP 10 EAST 40TH STREET 44TH FL NEW YORK NY 10016 This Schedule 13D/A constitutes Amendment No. 10 to the Schedule 13D on behalf of the John and Daria Barry Foundation (the Foundation) and Amendment No. 12 to the Schedule 13D of John F. Barry III originally filed with the SEC on February 29, 2016 (the Original Schedule 13D), as amended by Amendment No. 1 filed with the SEC on November 21, 2017 (Amendment No. 1), Amendment No. 2 filed with the SEC on November 28, 2017 (Amendment No. 2), Amendment No. 3 filed with the SEC on December 29, 2017 (Amendment No. 3), Amendment No. 4 filed with the SEC on July 2, 2018 (Amendment No.4), Amendment No. 5 filed with the SEC on January 7, 2019 (Amendment No. 5), Amendment No. 6 filed with SEC on March 23, 2020 (Amendment No. 6), Amendment No. 7 filed with the SEC on July 6, 2020 (Amendment No. 7), Amendment No. 8 filed with the SEC on January 8, 2021 (Amendment No. 8), Amendment No. 9 filed with the SEC on March 22, 2024 (Amendment No. 9), Amendment No. 10 file with the SEC on November 22, 2024 (Amendment No. 10) and Amendment No. 11 file with the SEC on March 3, 2026 (Amendment No. 11). Except as expressly set forth herein, there have been no changes in the information set forth in the Original Schedule 13D, Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, Amendment No. 9, Amendment No. 10 or Amendment No. 11, and such prior disclosure, as so amended, is incorporated into this Amendment No. 10 to the Schedule 13D on behalf of the Foundation and Amendment No. 12 to the Schedule 13D of John F. Barry III. Since the filing of Amendment No. 11 on March 3, 2026 through May 21, 2026, (i) Mr. Barry acquired an aggregate of 278,396.77 Shares, which include Shares held in an IRA account in his name (the John F. Barry III IRA) and consist of 78,396.77 Shares purchased with dividends through the Issuers dividend reinvestment plan and 200,000.00 Shares purchased with personal funds on the open market, and (ii) 22,186.41 Shares were purchased with dividends through the Issuers dividend reinvestment account by an IRA account controlled by Mr. Barrys spouse, Daria Barry (the Daria Barry IRA), and 0 Shares purchased with existing cash on hand on the open market by the Daria Barry IRA. The information set forth in rows 7 through 13 of the cover pages to this Schedule 13D is incorporated herein by reference. The percentage set forth in row 13 is based on 501,007,653 outstanding Shares as of May 6, 2026, as reported in the Issuers Form 10Q filed on May 7, 2026. Mr. Barry has sole voting and dispositive power over the 130,184,416.49 Shares held by him directly and through the Foundation as of May 21, 2026. Mr. Barry has shared voting and dispositive power over the 426,199.38 Shares acquired through the Daria Barry IRA as of May 21, 2026. Date of Transaction Account Amount of Securities Weighted Average Price per Share Type 5/21/2026 John F. Barry III 100,000.00 $2.2766 Purchase 5/21/2026 John F. Barry III 100,000.00 $2.2413 Purchase 5/19/2026 Daria Barry IRA 8,581.20 $2.0805 Dividend 5/19/2026 John F. Barry III IRA 30,268.27 $2.0805 Dividend 4/21/2026 Daria Barry IRA 6,668.62 $2.6315 Dividend 4/21/2026 John F. Barry III IRA 23,522.08 $2.6315 Dividend 4/21/2026 John F. Barry III 19.612 $2.6315 Dividend Not applicable. Not applicable. Barry John F John F Barry John F Barry 05/21/2026 John & Daria Barry Foundation John F Barry John F Barry 05/21/2026