---
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"
generated_at: "2026-06-01T20:19:44.523202+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

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

## Summary
- 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.

## SEC filing metadata
- 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
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/ea0292798-8k_gulfport.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-063506
- JSON: https://secwatch.observer/filing/0001213900-26-063506.json
- Plain text: https://secwatch.observer/filing/0001213900-26-063506.txt

## Source-grounded claims
- claim_id: 30e279839f
  claim: Domenic J. Dell'Osso, Jr. was appointed as member of the Board at GULFPORT ENERGY CORP.
  evidence_excerpt: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm
- claim_id: b1836e7ade
  claim: Domenic J. Dell'Osso, Jr. was appointed as President and Chief Executive Officer at GULFPORT ENERGY CORP.
  evidence_excerpt: On May 4, 2026, Mr. Dell’Osso was appointed President and Chief Executive Officer of the Company effective as of May 28, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm
- claim_id: 43cb240b3efda84a7986fa4b337ff082c5d31b3e
  claim: GULFPORT ENERGY CORP shareholders approved Ratification of Grant Thornton LLP as independent auditors at the 2026-05-27 meeting.
  evidence_excerpt: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm
- claim_id: 5ec9a2d5ede0327b1554099f95cbb6617d4cdddc
  claim: GULFPORT ENERGY CORP shareholders approved Advisory vote on executive compensation at the 2026-05-27 meeting.
  evidence_excerpt: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm
- claim_id: b07036e51bb71216b0973e03384cec6f1888172a
  claim: 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.
  evidence_excerpt: 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.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874499/000121390026063506/0001213900-26-063506-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.