Gulfport Energy Corporation (GPOR) Insider Trading

Last 12 months

Insiders bought $257k and sold $79.4M on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Director Edward A Mule sold $63.7M on Dec 2, 2025, 7.8% of their stake, outside a plan.

Net open-market

−$79.1M

1 buy · 18 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

1 / 10

executives and directors

Last open-market buy

Aug 2026

Aug 7, 2026

Get an email when GPOR's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 24	Timothy J. Cutt Director	SoldNo plan	2,500	$158.98	$397k	8.5%	Form 4
Sep 2	Matthew Willrath VP & CAO	SoldNo plan	325	$182.69	$59k	13%	Form 4
Aug 7	Domenic J Dell'Osso Jr President & CEO	Bought	1,600	$160.61	$257k	7.0%	Form 4
Apr 2	Jason Joseph Martinez Director	SoldNo plan	400	$213.40	$85k	9.3%	Form 4
Mar 24	Lester Zitkus SVP, Land	SoldNo plan	1,873	$213.90	$401k	24%	Form 4
Mar 5	Matthew Willrath VP & CAO	SoldNo plan	497	$215.28	$107k	16%	Form 4
Mar 5	Patrick K. Craine CLAO and Corp Secretary	SoldNo plan 2 parts	2,000	$209.09 average	$418k	15%	Form 4
Mar 5	Michael Sluiter SVP of Reservoir Engineering	SoldNo plan	2,055	$213.10	$438k	19%	Form 4
Mar 4	Timothy J. Cutt Director	SoldNo plan	2,500	$209.13	$523k	9.5%	Form 4
Mar 2 – 3	Silver Point Capital L.p. Large holder	SoldNo plan 2 parts	844,156	$204.22 average	$172M	24%	Form 4
Mar 2	Michael Sluiter SVP of Reservoir Engineering	SoldNo plan	9,933	$210.00	$2.09M	47%	Form 4
Mar 2	Timothy J. Cutt Director	SoldNo plan 3 parts	5,000	$208.73 average	$1.04M	16%	Form 4
Mar 2	Michael L Hodges EVP & CFO	SoldNo plan 5 parts	16,769	$210.70 average	$3.53M	48%	Form 4
Jan 7	Lester Zitkus SVP, Land	SoldNo plan 3 parts	4,745	$185.69 average	$881k	38%	Form 4
Jan 6	Matthew Rucker EVP & COO	SoldNo plan 2 parts	10,732	$186.61 average	$2M	45%	Form 4
Jan 5	Patrick K. Craine CLAO and Corp Secretary	SoldNo plan	11,929	$191.87	$2.29M	49%	Form 4
Dec 30, 2025	Timothy J. Cutt Director	SoldNo plan	2,500	$214.74	$537k	7.4%	Form 4
Dec 1, 2025 – Dec 2, 2025	Edward A Mule Director	SoldNo plan 2 parts	290,035	$219.56 average	$63.7M	7.8%	Form 4
Nov 11, 2025	Timothy J. Cutt Director	SoldNo plan	2,635	$210.45	$555k	6.9%	Form 4
Nov 11, 2025	David D Wolf Director	SoldNo plan	1,525	$210.27	$321k	25%	Form 4
Sep 9, 2025	Jason Joseph Martinez Director	SoldNo plan	600	$171.57	$103k	12%	Form 4
Jun 4, 2025	Jason Joseph Martinez Director	SoldNo plan 3 parts	700	$193.69 average	$136k	13%	Form 4
May 29, 2025	Matthew Willrath VP & CAO	SoldNo plan	633	$193.83	$123k	21%	Form 4
May 20, 2025	Lester Zitkus SVP, Land	SoldNo plan	1,914	$195.47	$374k	20%	Form 4
May 14, 2025	Michael Sluiter SVP of Reservoir Engineering	SoldNo plan	2,571	$198.00	$509k	20%	Form 4
May 13, 2025	Edward A Mule Director	SoldNo plan	686,986	$194.84	$134M	26%	Form 4
May 12, 2025 – May 13, 2025	Patrick K. Craine CLAO and Corp Secretary	SoldNo plan 4 parts	5,000	$195.12 average	$976k	29%	Form 4
May 12, 2025	Matthew Willrath VP & CAO	SoldNo plan	230	$194.10	$45k	6.6%	Form 4
May 12, 2025	David D Wolf Director	SoldNo plan	1,927	$194.00	$374k	27%	Form 4
Mar 4, 2025	Patrick K. Craine CLAO and Corp Secretary	SoldNo plan	2,150	$171.05	$368k	11%	Form 4
Jan 13, 2025	Edward A Mule Director	SoldNo plan	429,253	$185.22	$79.5M	14%	Form 4
Dec 31, 2024	Jason Joseph Martinez Director	SoldNo plan	868	$181.61	$158k	15%	Form 4
Dec 19, 2024	Silver Point Capital L.p. Large holder	SoldNo plan	529,410	$162.81	$86.2M	15%	Form 4
Nov 27, 2024	Edward A Mule Director	SoldNo plan	125,000	$177.00	$22.1M	3.3%	Form 4
Nov 20, 2024 – Nov 22, 2024	Jason Joseph Martinez Director	SoldNo plan 2 parts	1,750	$174.05 average	$305k	24%	Form 4
Nov 21, 2024	Robert J O'Shea Director	SoldNo plan	472,876	$175.60	$83M	11%	Form 4

Sep 24No plan
Timothy J. Cutt
Director · sold 2,500 at $158.98
$397k
8.5% of stake
Sep 2No plan
Matthew Willrath
VP & CAO · sold 325 at $182.69
$59k
13% of stake
Aug 7
Domenic J Dell'Osso Jr
President & CEO · bought 1,600 at $160.61
$257k
7.0% of stake
Apr 2No plan
Jason Joseph Martinez
Director · sold 400 at $213.40
$85k
9.3% of stake
Mar 24No plan
Lester Zitkus
SVP, Land · sold 1,873 at $213.90
$401k
24% of stake
Mar 5No plan
Matthew Willrath
VP & CAO · sold 497 at $215.28
$107k
16% of stake
Mar 5No plan
Patrick K. Craine
CLAO and Corp Secretary · sold 2,000 at avg $209.09
$418k
15% of stake
Mar 5No plan
Michael Sluiter
SVP of Reservoir Engineering · sold 2,055 at $213.10
$438k
19% of stake
Mar 4No plan
Timothy J. Cutt
Director · sold 2,500 at $209.13
$523k
9.5% of stake
Mar 2 – 3No plan
Silver Point Capital L.p.
Large holder · sold 844,156 at avg $204.22
$172M
24% of stake
Mar 2No plan
Michael Sluiter
SVP of Reservoir Engineering · sold 9,933 at $210.00
$2.09M
47% of stake
Mar 2No plan
Timothy J. Cutt
Director · sold 5,000 at avg $208.73
$1.04M
16% of stake
Mar 2No plan
Michael L Hodges
EVP & CFO · sold 16,769 at avg $210.70
$3.53M
48% of stake
Jan 7No plan
Lester Zitkus
SVP, Land · sold 4,745 at avg $185.69
$881k
38% of stake
Jan 6No plan
Matthew Rucker
EVP & COO · sold 10,732 at avg $186.61
$2M
45% of stake
Jan 5No plan
Patrick K. Craine
CLAO and Corp Secretary · sold 11,929 at $191.87
$2.29M
49% of stake
Dec 30, 2025No plan
Timothy J. Cutt
Director · sold 2,500 at $214.74
$537k
7.4% of stake
Dec 1, 2025 – Dec 2, 2025No plan
Edward A Mule
Director · sold 290,035 at avg $219.56
$63.7M
7.8% of stake
Nov 11, 2025No plan
Timothy J. Cutt
Director · sold 2,635 at $210.45
$555k
6.9% of stake
Nov 11, 2025No plan
David D Wolf
Director · sold 1,525 at $210.27
$321k
25% of stake
Sep 9, 2025No plan
Jason Joseph Martinez
Director · sold 600 at $171.57
$103k
12% of stake
Jun 4, 2025No plan
Jason Joseph Martinez
Director · sold 700 at avg $193.69
$136k
13% of stake
May 29, 2025No plan
Matthew Willrath
VP & CAO · sold 633 at $193.83
$123k
21% of stake
May 20, 2025No plan
Lester Zitkus
SVP, Land · sold 1,914 at $195.47
$374k
20% of stake
May 14, 2025No plan
Michael Sluiter
SVP of Reservoir Engineering · sold 2,571 at $198.00
$509k
20% of stake
May 13, 2025No plan
Edward A Mule
Director · sold 686,986 at $194.84
$134M
26% of stake
May 12, 2025 – May 13, 2025No plan
Patrick K. Craine
CLAO and Corp Secretary · sold 5,000 at avg $195.12
$976k
29% of stake
May 12, 2025No plan
Matthew Willrath
VP & CAO · sold 230 at $194.10
$45k
6.6% of stake
May 12, 2025No plan
David D Wolf
Director · sold 1,927 at $194.00
$374k
27% of stake
Mar 4, 2025No plan
Patrick K. Craine
CLAO and Corp Secretary · sold 2,150 at $171.05
$368k
11% of stake
Jan 13, 2025No plan
Edward A Mule
Director · sold 429,253 at $185.22
$79.5M
14% of stake
Dec 31, 2024No plan
Jason Joseph Martinez
Director · sold 868 at $181.61
$158k
15% of stake
Dec 19, 2024No plan
Silver Point Capital L.p.
Large holder · sold 529,410 at $162.81
$86.2M
15% of stake
Nov 27, 2024No plan
Edward A Mule
Director · sold 125,000 at $177.00
$22.1M
3.3% of stake
Nov 20, 2024 – Nov 22, 2024No plan
Jason Joseph Martinez
Director · sold 1,750 at avg $174.05
$305k
24% of stake
Nov 21, 2024No plan
Robert J O'Shea
Director · sold 472,876 at $175.60
$83M
11% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch GPOR, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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