As of the latest Form 4 filed Jun 1, 2026.
What Gulfport Energy Operating Corp insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 24 most recent filings for GPOR.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-01 | 2026-05-28 | Powers Jean Marie Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Martinez Jason Joseph Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | SLUITER MICHAEL SVP of Reservoir Engineering | AAward | +1.31K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Cutt Timothy J. Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Shafer-Malicki Mary Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | DELL'OSSO DOMENIC J JR President & CEO | AAward | +22.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Wolf David D Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Silver Point Capital L.P. Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-01 | 2026-05-28 | Reganato David A Director | AAward | +1.03K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-27 | 2026-05-26 | Willrath Matthew VP & CAO | FTax | −134.00 | $178.22 | $23.9K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-03 | HODGES MICHAEL L EVP & CFO | FTax | −1.48K | $207.00 | $306K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-02 | Martinez Jason Joseph Director | SSale | −400.00 | $213.40 | $85.4K | No | Form 4 ↗ |
| 2026-03-26 | 2026-03-24 | Zitkus Lester SVP, Land | SSale | −1.87K | $213.90 | $401K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | Cutt Timothy J. Director | AAward | +4.73K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Willrath Matthew VP & CAO | SSale | −497.00 | $215.28 | $107K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Craine Patrick K. CLAO and Corp Secretary | SSale | −1.00K | $210.25 | $210K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | Craine Patrick K., CLAO and Corp Secretary | SSale | −1.00K | $207.93 | $208K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-05 | SLUITER MICHAEL SVP of Reservoir Engineering | SSale | −2.06K | $213.10 | $438K | No | Form 4 ↗ |
| 2026-03-06 | 2026-03-04 | Cutt Timothy J. Director | SSale | −2.50K | $209.13 | $523K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-24 | REINHART JOHN K. President & CEO | FTax | −3.02K | $194.12 | $586K | No | Form 4 ↗ |
| 2026-01-09 | 2026-01-07 | Zitkus Lester SVP, Land | SSale | −700.00 | $187.27 | $131K | No | Form 4 ↗ |
| 2026-01-09 | 2026-01-07 | Zitkus Lester, SVP, Land | SSale | −1.61K | $186.68 | $300K | No | Form 4 ↗ |
| 2026-01-09 | 2026-01-07 | Zitkus Lester, SVP, Land | SSale | −2.44K | $184.58 | $450K | No | Form 4 ↗ |
| 2025-12-31 | 2025-12-30 | Cutt Timothy J. Director | SSale | −2.50K | $214.74 | $537K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also GPOR’s full analysis or the market-wide insider trading feed. The tabs above jump to GPOR’s other SEC data.
Source: SEC Form 4 filings for GPOR, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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