Insider trading

Period: 120 months Stock: GPOR Role: Other officers × + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

38 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

38 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

38 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

38 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
38 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
38 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

38 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
2 Sep 2026
Willrath Matthew VP & CAO
Sold at will
$59.37K 325 at 182.69
13.2%
Not planned
24 Mar 2026
Zitkus Lester SVP, Land
Sold at will
$400.63K 1,873 at 213.90
23.9%
Not planned
5 Mar 2026
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$437.92K 2,055 at 213.10
18.5%
Not planned
5 Mar 2026
Craine Patrick K. CLAO and Corp Secretary
Sold at will 2×
$418.18K 2,000 at 209.09
15.3%
Not planned
5 Mar 2026
Willrath Matthew VP & CAO
Sold at will
$106.99K 497 at 215.28
16.1%
Not planned
2 Mar 2026
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$2.09M 9,933 at 210.00
45.3%
Not planned
7 Jan 2026
Zitkus Lester SVP, Land
Sold at will 3×
$881.09K 4,745 at 185.69
37.8%
Not planned
6 Jan 2026
Rucker Matthew EVP & COO
Sold at will 2×
$2.00M 10,732 at 186.61
45.4%
Not planned
5 Jan 2026
Craine Patrick K. CLAO and Corp Secretary
Sold at will
$2.29M 11,929 at 191.87
49.2%
Not planned
29 May 2025
Willrath Matthew VP & CAO
Sold at will
$122.69K 633 at 193.83
21.3%
Not planned
20 May 2025
Zitkus Lester SVP, Land
Sold at will
$374.13K 1,914 at 195.47
19.7%
Not planned
14 May 2025
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$509.06K 2,571 at 198.00
19.8%
Not planned
13 May 2025
Craine Patrick K. CLAO and Corp Secretary
Sold at will
$39.47K 200 at 197.37
1.6%
Not planned
12 May 2025
Craine Patrick K. CLAO and Corp Secretary
Sold at will 3×
$936.14K 4,800 at 195.03
27.7%
Not planned
12 May 2025
Willrath Matthew VP & CAO
Sold at will
$44.64K 230 at 194.10
6.6%
Not planned
4 Mar 2025
Craine Patrick K. CLAO and Corp Secretary
Sold at will
$367.76K 2,150 at 171.05
11.0%
Not planned
16 Aug 2024
Willrath Matthew VP & CAO
Sold at will
$81.66K 567 at 144.02
19.0%
Not planned
12 Aug 2024
Craine Patrick K. CLAO and Corp Secretary
Sold at will 3×
$1.09M 7,774 at 140.24
30.7%
Not planned
30 May 2024
Willrath Matthew VP & CAO
Sold at will
$100.38K 632 at 158.83
16.4%
Not planned
28 May 2024
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$1.39M 8,723 at 159.79
40.1%
Not planned
24 May 2024
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$795.00K 5,000 at 159.00
18.7%
Not planned
21 May 2024
Zitkus Lester SVP, Land
Sold at will
$1.29M 8,100 at 159.83
44.5%
Not planned
20 May 2024
Craine Patrick K. CLAO and Corp Secretary
Sold at will 3×
$10.84M 68,618 at 157.95
68.5%
Sold half or more
20 May 2024
Zitkus Lester SVP, Land
Sold at will
$522.11K 3,264 at 159.96
15.2%
Not planned
6 May 2024
Willrath Matthew VP & CAO
Sold at will
$87.27K 567 at 153.92
12.1%
Not planned
8 Aug 2023
Craine Patrick K. CLAO and Corp Secretary
Sold at will
$238.96K 2,226 at 107.35
7.3%
Not planned
8 Aug 2023
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$53.22K 500 at 106.44
4.4%
Not planned
7 Aug 2023
Craine Patrick K. CLAO and Corp Secretary
Sold at will
$817.59K 7,774 at 105.17
20.3%
Not planned
7 Aug 2023
SLUITER MICHAEL SVP of Reservoir Engineering
Sold at will
$156.93K 1,472 at 106.61
11.5%
Not planned
17 Apr 2020
McKinney Samantha See Explanation of Responses
Bought
$14.82K 20,500 at 0.72
opened
First buy on file
30 Aug 2019
Craine Patrick K. General Counsel and Corp. Sec.
Bought
$36.30K 15,000 at 2.42
7.1%
First buy on file
16 Aug 2018
Maier Stuart SVP, Geosciences
Sold, plan not stated
$22.38K 2,000 at 11.19
1.7%
19 Jun 2018
Baldwin Steve VP of Reservoir Engineering
Sold, plan not stated
$110.00K 10,000 at 11.00
19.6%
15 Dec 2017
Zitkus Lester SVP, Land
Sold, plan not stated
$76.22K 6,266 at 12.16
12.6%
15 Dec 2017
Maier Stuart SVP, Geosciences
Sold, plan not stated
$73.00K 6,000 at 12.17
11.5%
15 Dec 2017
Jones Robert Alan SVP, Drilling
Sold, plan not stated 2×
$69.27K 5,700 at 12.15
11.5%
15 Dec 2017
Malone Mark SVP, Operations
Sold, plan not stated
$57.16K 4,700 at 12.16
10.3%
15 Dec 2017
Baldwin Steve VP of Reservoir Engineering
Sold, plan not stated
$48.67K 4,000 at 12.17
10.9%
Showing 1–38 of 38.