8-K filed June 1, 2026, 4:10 PM ET ticker GPOR CIK 0000874499

leadership confidence high sentiment neutral materiality 0.60

Gulfport Energy appoints Domenic Dell'Osso to Board; CEO role effective May 28, 2026

GULFPORT ENERGY CORP

Board increased to seven; Dell'Osso appointed director until 2027 Annual Meeting.
Dell'Osso became CEO May 28; previously CEO of Expand Energy (EXE) until Feb 2026.
Michael Sluiter, SVP Reservoir Engineering, receives $222,500 RSU grant with 1-year vest.
Annual Meeting: all six director nominees elected; say-on-pay and auditor ratification approved.
Dell'Osso receives no additional compensation for Board service.

item 5.02 item 5.07

Machine-readable event card

schema_version: secwatch.filing_event.v1
accession: 0001213900-26-063506
form_type: 8-K
ticker: GPOR
cik: 0000874499
company_name: GULFPORT ENERGY CORP
filed_at: 2026-06-01T20:10:03+00:00
discovered_at: 2026-06-01T20:12:00.362718+00:00
generated_at: 2026-06-01T20:19:44.523202+00:00
sec_items: ["5.02", "5.07"]
event_type: leadership
sentiment: neutral
materiality_score: 0.6
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Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Appointed

Domenic J. Dell'Osso, Jr.

member of the Board

GPOR · GULFPORT ENERGY CORP

Effective: 2026-05-28
Filed: June 1, 2026, 4:10 PM ET

On May 28, 2026, the Board voted to increase the size of the Board to seven members and appointed Domenic J. Dell’Osso, Jr. to serve as a member of the Board until the 2027 Annual Meeting of Stockholders or until his successor is duly elected and qualified.

Appointed

Domenic J. Dell'Osso, Jr.

President and Chief Executive Officer

GPOR · GULFPORT ENERGY CORP

Effective: 2026-05-28
Filed: June 1, 2026, 4:10 PM ET

On May 4, 2026, Mr. Dell’Osso was appointed President and Chief Executive Officer of the Company effective as of May 28, 2026.

Source-grounded claims

30e279839f

Domenic J. Dell'Osso, Jr. was appointed as member of the Board at GULFPORT ENERGY CORP.

On May 28, 2026, the Board voted to increase the size of the Board to seven members and appointed Domenic J. Dell’Osso, Jr. to serve as a member of the Board until the 2027 Annual Meeting of Stockholders or until his successor is duly elected and qualified.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

b1836e7ade

Domenic J. Dell'Osso, Jr. was appointed as President and Chief Executive Officer at GULFPORT ENERGY CORP.

On May 4, 2026, Mr. Dell’Osso was appointed President and Chief Executive Officer of the Company effective as of May 28, 2026.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

43cb240b3efda84a7986fa4b337ff082c5d31b3e

GULFPORT ENERGY CORP shareholders approved Ratification of Grant Thornton LLP as independent auditors at the 2026-05-27 meeting.

Proposal 2: Auditors Ratification Proposal The Company’s stockholders ratified the appointment of Grant Thornton LLP as the Company’s independent auditors for the fiscal year ending December 31, 2026.

SEC 8-K Item 5.07 confidence 0.9 SEC evidence

5ec9a2d5ede0327b1554099f95cbb6617d4cdddc

GULFPORT ENERGY CORP shareholders approved Advisory vote on executive compensation at the 2026-05-27 meeting.

Proposal 3: Say-on-Pay Proposal The Company’s stockholders approved, on an advisory, non-binding basis, the compensation paid to the Company’s named executive officers.

SEC 8-K Item 5.07 confidence 0.9 SEC evidence

b07036e51bb71216b0973e03384cec6f1888172a

GULFPORT ENERGY CORP shareholders approved Election of Directors Timothy Cutt, David Wolf, Jason Martinez, Jeannie Powers, David Reganato and Mary Shafer-Malicki at the 2026-05-27 meeting.

Proposal 1: Election of Directors Timothy Cutt, David Wolf, Jason Martinez, Jeannie Powers, David Reganato and Mary Shafer-Malicki were elected to serve as the Company’s directors until the 2027 Annual Meeting of Stockholders or until their respective successors are duly elected and qualified.

SEC 8-K Item 5.07 confidence 0.9 SEC evidence

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On May 28, 2026, the Board voted to increase the size of the Board to seven members and appointed Domenic J. Dell’Osso, Jr. to serve as a member of the Board until the 2027 Annual Meeting of Stockholders or until his successor is duly elected and qualified.

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On May 28, 2026, the Board voted to increase the size of the Board to seven members and appointed Domenic J. Dell’Osso, Jr. to serve as a member of the Board until the 2027 Annual Meeting of Stockholders or until his successor is duly elected and qualified.

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On May 28, 2026, the Board voted to increase the size of the Board to seven members and appointed Domenic J. Dell’Osso, Jr. to serve as a member of the Board until the 2027 Annual Meeting of Stockholders or until his successor is duly elected and qualified.

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Source: SEC EDGAR

accession 0001213900-26-063506

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