GPOR insider buying and SEC filings, explained
Gulfport Energy Corp. · CIK 874499
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$257K
Insiders who bought
1
Sold (not marked 10b5-1)
$251.7M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 24, 2026 | Sale | Timothy J. Cutt (Director) sold 2,500 shares at $158.98 ($397K). Holdings down 8% to 27,013 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 25, 2026 |
| Sep 2, 2026 | Sale | Matthew Willrath (VP & CAO) sold 325 shares at $182.69 ($59K). Holdings down 13% to 2,130 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Aug 7, 2026 | Purchase (code P) | Domenic J. Dell'Osso Jr. (CEO and Director) bought 1,600 shares at $160.61 ($257K), reported as a purchase (code P). Holdings up 7% to 24,349 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 10, 2026 |
| Apr 2, 2026 | Sale | Jason Joseph Martinez (Director) sold 400 shares at $213.40 ($85K). Holdings down 9% to 3,888 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 3, 2026 |
| Mar 24, 2026 | Sale | Lester Zitkus (SVP, Land) sold 1,873 shares at $213.90 ($401K). Holdings down 24% to 5,948 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 26, 2026 |
| Mar 5, 2026 | Sale | Matthew Willrath (VP & CAO) sold 497 shares at $215.28 ($107K). Holdings down 16% to 2,589 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 6, 2026 |
| Mar 5, 2026 | Sale | Patrick K. Craine (CLAO and Corp Secretary) sold 2,000 shares at about $209.09 ($418K). Holdings down 15% to 11,060 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 6, 2026 |
| Mar 5, 2026 | Sale | Michael Sluiter (SVP of Reservoir Engineering) sold 2,055 shares at $213.10 ($438K). Holdings down 19% to 9,031 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 6, 2026 |
| Mar 4, 2026 | Sale | Timothy J. Cutt (Director) sold 2,500 shares at $209.13 ($523K). Holdings down 10% to 23,755 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 6, 2026 |
| Mar 2–3, 2026 | Sale | Edward A. Mule (Director and 10% owner) sold 844,156 shares between Mar 2 and Mar 3 at $204.22 ($172.4M). Holdings down 24% to 2,605,729 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Mar 4, 2026 |
| Mar 2, 2026 | Sale | Timothy J. Cutt (Director) sold 5,000 shares at about $208.73 ($1.0M). Holdings down 16% to 26,255 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Mar 2, 2026 | Sale | Michael Sluiter (SVP of Reservoir Engineering) sold 9,933 shares at $210.00 ($2.1M). Holdings down 45% to 11,980 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Mar 2, 2026 | Sale | Michael L. Hodges (CFO) sold 16,769 shares at about $210.70 ($3.5M). Holdings down 48% to 18,473 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Jan 7, 2026 | Sale | Lester Zitkus (SVP, Land) sold 4,745 shares at about $185.69 ($881K). Holdings down 38% to 7,821 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 9, 2026 |
| Jan 5, 2026 | Sale | Patrick K. Craine (CLAO and Corp Secretary) sold 11,929 shares at about $191.87 ($2.3M). Holdings down 49% to 12,340 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 6, 2026 |
| Jan 6, 2026 | Sale | Matthew Rucker (President / COO) sold 10,732 shares at about $186.61 ($2.0M). Holdings down 45% to 12,893 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 6, 2026 |
| Dec 30, 2025 | Sale | Timothy J. Cutt (Director) sold 2,500 shares at $214.74 ($537K). Holdings down 7% to 31,255 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 31, 2025 |
| Dec 1–2, 2025 | Sale | Edward A. Mule (Director and 10% owner) sold 290,035 shares between Dec 1, 2025 and Dec 2, 2025 at $219.56 ($63.7M). Holdings down 8% to 3,449,885 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Dec 3, 2025 |
| Nov 11, 2025 | Sale | Timothy J. Cutt (Director) sold 2,635 shares at about $210.45 ($555K). Holdings down 7% to 35,473 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 13, 2025 |
| Nov 11, 2025 | Sale | David D Wolf (Director) sold 1,525 shares at about $210.27 ($321K). Holdings down 25% to 4,462 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 13, 2025 |
27 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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