Company: GPOR
Filing Date: 2025-04-15
Form Type: DEFA14A
Source: 0001213900-25-032107
Chunk: 0

Company: GULFPORT ENERGY CORP
Filing Date: 2025-04-15
Form: DEFA14A
Chunk 0
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<div align='center'>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. )</div>

| Filed by the Registrant                    |     | ☒ |
| Filed by a party other than the Registrant |     | ☐ |

Check the appropriate box:

| ☐ |     | Preliminary Proxy Statement                                                     |
| ☐ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☐ |     | Definitive Proxy Statement                                                      |
| ☒ |     | Definitive Additional Materials                                                 |
| ☐ |     | Soliciting Material under §240.14a-12                                           |

<div align='center'>Gulfport Energy Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</div>

Payment of Filing Fee (Check all boxes that apply):

| ☒ |     | No fee required                                                                                      |
| ☐ |     | Fee paid previously with preliminary materials.                                                      |
| ☐ |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a- 6(i)(1) and 0-11 |

<div align='center'>SUPPLEMENT TO PROXY STATEMENT DATED APRIL 2, 2025,

FOR THE ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON MAY 21, 2025</div>

This supplement, dated April 15, 2025 (this “ Supplement”), supplements the Definitive Proxy Statement on Schedule 14A filed by Gulfport Energy Corporation (“ we” or the “ Company”) with the U.S. Securities and Exchange Commission on April 2, 2025 (the “ Proxy Statement”) in connection with the Company’s 2025 Annual Meeting of Stockholders scheduled to be held on May 21, 2025 at 9:00 AM, Central Time (the “ Annual Meeting”).

This Supplement clarifies the voting standard required for Proposal 4: “To approve an amendment to the Company’s Amended and Restated Certificate of Incorporation to provide for exculpation of certain officers of the Company as permitted by amendments to Delaware law”