Gulfport Energy Corporation
US ˙ NYSE ˙ US4026355028

SecurityGPOR / Gulfport Energy Corporation
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership3,057 shares
Latest Disclosed Value $ 550,810
Wolverine Trading, Llc ownership in GPOR / Gulfport Energy Corporation

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 3,057 shares of Gulfport Energy Corporation (US:GPOR) valued at $553,256 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 2,862 shares of Gulfport Energy Corporation. This represents a change in shares of 6.81% during the quarter. The current value of the position is $516,083 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (GPOR) in the form of stock options. The firm currently holds call options representing 4,000 of underlying shares valued at $720,720 USD and put options representing 1,200 of underlying shares valued at $216,216 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

GPOR / Gulfport Energy Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-11-14 2025-09-30 13F GULFPORT ENERGY COMMON SHARES 402635502 3,057 195 6.81 551 -5.98 0.0004
2025-08-18 2025-06-30 13F GULFPORT ENERGY COMMON SHARES 402635502 2,862 1,308 84.17 586 105.99 0.0006
2025-05-15 2025-03-31 13F GULFPORT ENERGY COMMON SHARES 402635502 1,554 1,554 285 0.0003
2021-02-12 2020-12-31 13F GULFPORT ENERGY COM NEW 402635304 0 -11,350 -100.00 0 -100.00
2020-11-13 2020-09-30 13F GULFPORT ENERGY COM NEW 402635304 11,350 -11,062 -49.36 6 -73.91 0.0000
2020-08-13 2020-06-30 13F GULFPORT ENERGY COM NEW 402635304 22,412 5,167 29.96 23 187.50 0.0001
2020-05-11 2020-03-31 13F GULFPORT ENERGY COM NEW 402635304 17,245 -20,642 -54.48 8 -92.86 0.0000
2020-02-12 2019-12-31 13F GULFPORT ENERGY COM NEW 402635304 37,887 37,887 112 0.0003
2019-11-14 2019-09-30 13F GULFPORT ENERGY COM NEW 402635304 0 -12,113 -100.00 0 -100.00
2019-08-20 2019-06-30 13F GULFPORT ENERGY COM NEW 402635304 12,113 -19,247 -61.37 59 -76.59 0.0002
2019-05-15 2019-03-31 13F GULFPORT ENERGY COM NEW 402635304 31,360 3,882 14.13 252 34.76 0.0007
2019-02-13 2018-12-31 13F GULFPORT ENERGY COM NEW 402635304 27,478 27,478 187 0.0005
2018-05-15 2018-03-31 13F GULFPORT ENERGY COM NEW 402635304 0 -13,701 -100.00 0 -100.00
2018-02-14 2017-12-31 13F GULFPORT ENERGY COM NEW 402635304 13,701 13,701 175 0.0006
2017-08-14 2017-06-30 13F GULFPORT ENERGY COM NEW 402635304 0 -21,238 -100.00 0 -100.00
2017-05-15 2017-03-31 13F GULFPORT ENERGY COM NEW 402635304 21,238 8,270 63.77 359 1.41 0.0020
2016-11-14 2016-09-30 13F GULFPORT ENERGY COM NEW 402635304 12,968 -7,826 -37.64 354 -45.95 0.0017
2016-08-17 2016-06-30 13F/A-1 GULFPORT ENERGY COM NEW 402635304 20,794 20,794 655 0.0037
2016-08-15 2016-06-30 13F GULFPORT ENERGY COM NEW 402635304 20,794 655
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-14 2025-09-30 13F GULFPORT ENERGY COMMON SHARES Call 4,000 300.00 721 252.94 n/a n/a n/a
2025-08-18 2025-06-30 13F GULFPORT ENERGY COMMON SHARES Call 1,000 -50.00 205 -44.26 n/a n/a n/a
2025-05-15 2025-03-31 13F GULFPORT ENERGY COMMON SHARES Call 2,000 366 n/a n/a n/a
2025-02-14 2024-12-31 13F GULFPORT ENERGY OPERATING COMMON SHARES Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F GULFPORT ENERGY OPERATING COMMON SHARES Call 1,500 228 n/a n/a n/a
2021-02-12 2020-12-31 13F GULFPORT ENERGY COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F GULFPORT ENERGY COM NEW Call 24,900 20.29 14 -33.33 n/a n/a n/a
2020-08-13 2020-06-30 13F GULFPORT ENERGY COM NEW Call 20,700 18.29 21 162.50 n/a n/a n/a
2020-05-11 2020-03-31 13F GULFPORT ENERGY COM NEW Call 17,500 -84.60 8 -97.61 n/a n/a n/a
2020-02-12 2019-12-31 13F GULFPORT ENERGY COM NEW Call 113,600 335 n/a n/a n/a
2019-11-14 2019-09-30 13F GULFPORT ENERGY COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F GULFPORT ENERGY COM NEW Call 127,400 -57.84 626 -74.17 n/a n/a n/a
2019-05-15 2019-03-31 13F GULFPORT ENERGY COM NEW Call 302,200 22.55 2,424 44.37 n/a n/a n/a
2019-02-13 2018-12-31 13F GULFPORT ENERGY COM NEW Call 246,600 309.63 1,679 167.78 n/a n/a n/a
2018-11-14 2018-09-30 13F GULFPORT ENERGY COM NEW Call 60,200 627 n/a n/a n/a
2018-05-15 2018-03-31 13F GULFPORT ENERGY COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F GULFPORT ENERGY COM NEW Call 27,000 15.88 345 3.29 n/a n/a n/a
2017-11-15 2017-09-30 13F GULFPORT ENERGY COM NEW Call 23,300 9.39 334 5.36 n/a n/a n/a
2017-08-14 2017-06-30 13F GULFPORT ENERGY COM NEW Call 21,300 -40.00 317 -47.17 n/a n/a n/a
2017-05-15 2017-03-31 13F GULFPORT ENERGY COM NEW Call 35,500 157.25 600 59.15 n/a n/a n/a
2016-11-14 2016-09-30 13F GULFPORT ENERGY COM NEW Call 13,800 27.78 377 10.88 n/a n/a n/a
2016-08-17 2016-06-30 13F/A GULFPORT ENERGY COM NEW Call 10,800 340 n/a n/a n/a
2016-08-15 2016-06-30 13F GULFPORT ENERGY COM NEW Call 108 340 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-14 2025-09-30 13F GULFPORT ENERGY COMMON SHARES Put 1,200 20.00 216 5.88 n/a n/a n/a
2025-08-18 2025-06-30 13F GULFPORT ENERGY COMMON SHARES Put 1,000 205 n/a n/a n/a
2024-02-14 2023-12-31 13F GULFPORT ENERGY COMMON SHARES Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-15 2023-09-30 13F GULFPORT ENERGY COMMON SHARES Put 2,400 -11.11 285 1.79 n/a n/a n/a
2023-08-23 2023-06-30 13F GULFPORT ENERGY COMMON SHARES Put 2,700 279 n/a n/a n/a
2021-02-12 2020-12-31 13F GULFPORT ENERGY COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F GULFPORT ENERGY COM NEW Put 26,600 1.14 15 -44.44 n/a n/a n/a
2020-08-13 2020-06-30 13F GULFPORT ENERGY COM NEW Put 26,300 39.15 27 237.50 n/a n/a n/a
2020-05-11 2020-03-31 13F GULFPORT ENERGY COM NEW Put 18,900 -76.89 8 -96.68 n/a n/a n/a
2020-02-12 2019-12-31 13F GULFPORT ENERGY COM NEW Put 81,800 241 n/a n/a n/a
2019-11-14 2019-09-30 13F GULFPORT ENERGY COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F GULFPORT ENERGY COM NEW Put 34,900 -34.64 171 -60.05 n/a n/a n/a
2019-05-15 2019-03-31 13F GULFPORT ENERGY COM NEW Put 53,400 3.29 428 21.59 n/a n/a n/a
2019-02-13 2018-12-31 13F GULFPORT ENERGY COM NEW Put 51,700 77.66 352 16.17 n/a n/a n/a
2018-11-14 2018-09-30 13F GULFPORT ENERGY COM NEW Put 29,100 303 n/a n/a n/a
2018-05-15 2018-03-31 13F GULFPORT ENERGY COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F GULFPORT ENERGY COM NEW Put 14,800 -52.26 189 -57.53 n/a n/a n/a
2017-11-15 2017-09-30 13F GULFPORT ENERGY COM NEW Put 31,000 42.86 445 37.77 n/a n/a n/a
2017-08-14 2017-06-30 13F GULFPORT ENERGY COM NEW Put 21,700 -32.61 323 -40.62 n/a n/a n/a
2017-05-15 2017-03-31 13F GULFPORT ENERGY COM NEW Put 32,200 -74.61 544 -84.29 n/a n/a n/a
2016-11-14 2016-09-30 13F GULFPORT ENERGY COM NEW Put 126,800 -1.25 3,462 -14.46 n/a n/a n/a
2016-08-17 2016-06-30 13F/A GULFPORT ENERGY COM NEW Put 128,400 4,047 n/a n/a n/a
2016-08-15 2016-06-30 13F GULFPORT ENERGY COM NEW Put 1,284 4,047 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.