SCHEDULE 13D/A 0001332784 XXXXXXXX LIVE 14 Common Stock, par value $0.0001 per share 09/04/2025 false 0000874499 402635502 Gulfport Energy Corporation

713 Market Drive Oklahoma City OK 73114

Steven Weiser 203-542-4200 2 Greenwich Plaza Suite 1 Greenwich CT 06830 0001332784 N Silver Point Capital, L.P. b OO N DE 0 3739920 0 3739920 3739920 N 19.4 IA PN 0001029625 N Edward A. Mule b OO N X1 0 3739920 0 3739920 3739920 N 19.4 IN 0001382617 N Robert J. O'Shea b OO N X1 0 3739920 0 3739920 3739920 N 19.4 IN Common Stock, par value $0.0001 per share Gulfport Energy Corporation 713 Market Drive Oklahoma City OK 73114 Explanatory Note: This Amendment No. 14 (the "Amendment") amends the statement on Schedule 13D originally filed by the Reporting Persons on May 27, 2021, as amended by Amendment No. 1 filed by the Reporting Persons on June 10, 2021, as further amended by Amendment No. 2 filed by the Reporting Persons on June 21, 2021, as further amended by Amendment No. 3 filed by the Reporting Persons on June 23, 2023, as further amended by Amendment No. 4 filed by the Reporting Persons on June 28, 2023, as further amended by Amendment No. 5 filed by the Reporting Persons on September 8, 2023, as further amended by Amendment No. 6 filed by the Reporting Persons on December 6, 2023, as further amended by Amendment No. 7 filed by the Reporting Persons on December 13, 2023, as further amended by Amendment No. 8 filed by the Reporting Persons on March 21, 2024, as further amended by Amendment No. 9 filed by the Reporting Persons on September 23, 2024, as further amended by Amendment No. 10 filed by the Reporting Persons on November 25, 2024, as further amended by Amendment No. 11 filed by the Reporting Persons on December 20, 2024, as further amended by Amendment No. 12 filed by the Reporting Persons on January 15, 2025, and as further amended by Amendment No. 13 filed by the Reporting Persons on May 15, 2025 (as amended, the "Schedule 13D"). Capitalized terms used but not otherwise defined in this Amendment shall have the meanings ascribed to such terms in the Schedule 13D. Except as otherwise provided herein, each Item of the Schedule 13D remains unchanged. Item 4 is hereby supplemented as follows: On September 4, 2025, the Reporting Persons elected to convert 23,743 shares of Preferred Stock, representing all of the Preferred Stock beneficially owned by the Reporting Persons, into 1,741,150 shares of Common Stock following the Issuer's notice of redemption of the Preferred Stock. The responses of the Reporting Persons to rows (7) through (13) of the cover pages of this Schedule 13D are incorporated herein by reference. The Reporting Persons currently beneficially own 3,739,920 shares of Common Stock. Percent ownership calculations in this Schedule 13D are calculated by using (a) 17,561,724 shares of Common Stock outstanding as of July 30, 2025, as disclosed in the Issuer's Form 10-Q filed with the SEC on August 6, 2025, plus (b) 1,741,150 shares of Common Stock issued upon the conversion of the 23,743 shares of Preferred Stock previously beneficially owned by the Reporting Persons. On September 5, 2025, the Issuer filed a Form 8-K with the SEC disclosing that, due to the conversion of shares held by Preferred Stock holders, approximately 2.1 million additional shares of Common Stock had become outstanding as of September 5, 2025, in which case, the Reporting Persons' beneficial ownership would have represented approximately 19.0% as of September 5, 2025. The responses of the Reporting Persons to rows (7) through (13) of the cover pages of this Schedule 13D are incorporated herein by reference. The disclosure in Item 4 herein is incorporated by reference. Item 7 is hereby supplemented to add the following as exhibits: Exhibit 1 Joint Filing Agreement, dated as of September 8, 2025, by and among the Reporting Persons. Exhibit 2 Cooperation Agreement, dated as of May 17, 2021, by and among Gulfport Energy Corporation and Silver Point Capital, L.P. (incorporated herein by reference to Exhibit 10.3 of the Issuer's Form 8-K filed with the SEC on May 17, 2021). Exhibit 3 Power of Attorney of Edward A. Mule (incorporated herein by reference to Exhibit B to Schedule 13G filed by Silver Point Capital, L.P., Edward A. Mule and Robert O'Shea with the SEC on February 16, 2016 relating to TopBuild Corp.). Exhibit 4 Power of Attorney of Robert O'Shea (incorporated herein by reference to Exhibit C to Schedule 13G filed by Silver Point Capital, L.P., Edward A. Mule and Robert O'Shea with the SEC on February 16, 2016 relating to TopBuild Corp.). Exhibit 5 Registration Rights Agreement dated as of May 17, 2021, by and among the Issuer and the other parties signatory hereto (incorporated herein by reference to Exhibit 10.2 of the Issuer's Form 8-K filed with the SEC on May 17, 2021). Silver Point Capital, L.P. /s/ Steven Weiser 09/08/2025 Edward A. Mule /s/ Steven Weiser 09/08/2025 Robert J. O'Shea /s/ Steven Weiser 09/08/2025