Gulfport Energy Corporation (GPOR) Ownership

NYSE: GPORTop holders, insider trades and short interest.

GPOR ownership summary

as of October 18, 2026
Institutions
120.6%
of shares outstanding
Insiders
2.14%
of shares outstanding
Shares outstanding
18.0M
Float
14.7M
shares available to trade
Short interest
9.32%
1.4M shares short
Days to cover
4.95
short interest up 35.4% vs prior month
  • Institutions 120.62%
  • Insiders 2.14%

GPOR top institutional holders

20 largest
Gulfport Energy Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1Silver Point Capital LP14.74%2.6M$432.8M+770 (+0.0%)June 30, 2026
2BlackRock Inc12.85%2.3M$377.3M+1.1M (+95.3%)June 30, 2026
3State Street Corp5.60%991K$164.5M+226,122 (+29.6%)June 30, 2026
4FMR Inc4.87%862K$143.1M−53,592 (−5.9%)June 30, 2026
5Vanguard Capital Management, LLC3.77%666K$110.6M−33,052 (−4.7%)June 30, 2026
6Dimensional Fund Advisors, Inc.3.55%627K$104.2M−2,630 (−0.4%)June 30, 2026
7Delaware Management Holdings Inc3.16%559K$92.7M−31,055 (−5.3%)June 30, 2026
8Victory Capital Management Inc.3.00%531K$88.1M−7,721 (−1.4%)June 30, 2026
9Jennison Associates LLC2.98%527K$87.5M−93,602 (−15.1%)June 30, 2026
10T. Rowe Price Investment Management,Inc.2.97%525K$87.1M+153,586 (+41.4%)June 30, 2026
11Adage Capital Partners Gp LLC2.66%470K$78.0M+10,000 (+2.2%)June 30, 2026
12Vanguard Portfolio Management, LLC2.57%454K$75.4M+143,147 (+46.0%)June 30, 2026
13HITE Hedge Asset Management MLP2.28%403K$67.0M+255,201 (+172.2%)June 30, 2026
14Arrowstreet Capital Limited Partnership2.20%389K$64.5M−10,201 (−2.6%)June 30, 2026
15Geode Capital Management, LLC2.19%387K$64.2M+9,272 (+2.5%)June 30, 2026
16Principal Financial Group Inc2.13%377K$62.6M+67,211 (+21.7%)June 30, 2026
17JPMorgan Chase & Co2.11%373K$61.8M+15,534 (+4.4%)June 30, 2026
18Palo Duro Investment Partners, LP2.02%358K$59.4M+5,790 (+1.6%)June 30, 2026
19Assenagon Asset Management SA1.95%344K$57.1M−123,389 (−26.4%)June 30, 2026
20American Century Companies Inc1.91%339K$56.2M+136,921 (+67.9%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 2.1M shares and 8 cut 355K.

GPOR top mutual fund and ETF holders

20 largest
Gulfport Energy Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Small-Cap ETF5.00%884K$146.8M+213 (+0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest2.75%485K$80.6M−439 (−0.1%)August 31, 2026
3SttStrtSPDRS&POil&GasExplor&ProdtnETF2.53%447K$74.2M−15,512 (−3.4%)September 30, 2026
4iShares Russell 2000 ETF2.33%413K$68.5M−4,736 (−1.1%)September 30, 2026
5Avantis US Small Cap Value ETF2.12%375K$62.2M+720 (+0.2%)September 30, 2026
6Victory Sycamore Small Company Opp R1.64%290K$48.1M+8,000 (+2.8%)June 30, 2026
7Fidelity Low-Priced Stock1.47%259K$43.0M—July 31, 2026
8T. Rowe Price Small-Cap Value1.17%207K$34.4M−1,900 (−0.9%)August 31, 2026
9PGIM Jennison Small Company A1.14%202K$33.6M—August 31, 2026
10Nomura Small Cap Core I1.10%195K$32.4M—August 31, 2026
11Fidelity Small Cap Index0.98%174K$28.8M+1,412 (+0.8%)July 31, 2026
12Nomura Small Cap Value A0.97%171K$28.3M—August 31, 2026
13State Street SPDR Port S&P 600 Sm CpETF0.76%134K$22.2M—September 30, 2026
14Principal SmallCap R50.67%119K$19.8M−26,936 (−18.4%)August 31, 2026
15CC&L Global Alpha - Series A0.67%118K$19.7M+25,432 (+27.4%)July 31, 2026
16iShares Russell 2000 Growth ETF0.66%116K$19.2M−147 (−0.1%)September 30, 2026
17T. Rowe Price Small-Cap Stock0.63%111K$18.5M+43,526 (+64.1%)August 31, 2026
18Janus Henderson Small Cap Value L0.62%110K$18.2M—August 31, 2026
19Strategic Advisers Fidelity US TtlStk0.62%109K$18.1M+13,100 (+13.6%)August 31, 2026
20Touchstone Small Company A0.62%109K$18.1M+11,786 (+12.1%)June 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

GPOR insider transactions

latest 20
Gulfport Energy Corporation insider transactions
DateNameTransactionPriceSharesValue
2026-04-02Jason Joseph MartinezSell$213.40400$85,360
2026-03-03Silver Point Capital L.P.Sell$204.2284,416$17.2M
2026-03-02Michael L HodgesSell$210.7016,769$3.5M
2026-03-02Michael SluiterSell$210.009,933$2.1M
2026-03-02Silver Point Capital L.P.Sell$204.22759,740$155.2M
2026-03-02Timothy J CuttSell$208.735,000$1.0M
2026-01-09Gilbert Ray Cisneros, Jr.Sell$174.36——
2026-01-07Lester ZitkusSell$185.694,745$881,099
2026-01-06Matthew RuckerSell$186.6110,732$2.0M
2025-12-30Timothy J CuttSell$214.742,500$536,850
2025-12-02Silver Point Capital L.P.Sell$219.5645,546$10.0M
2025-12-01Silver Point Capital L.P.Sell$219.56244,489$53.7M
2025-11-11David D WolfSell$210.271,525$320,662
2025-11-11Timothy J CuttSell$210.452,635$554,536
2025-09-09Jason Joseph MartinezSell$171.57600$102,942
2025-07-18Gilbert Ray Cisneros, Jr.Buy$187.28——
2025-07-07Gilbert Ray Cisneros, Jr.Buy$183.29——
2025-06-04Jason Joseph MartinezSell$193.69700$135,583
2025-05-29Matthew WillrathSell$193.83633$122,694
2025-05-14Michael SluiterSell$198.002,571$509,058

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

GPOR shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns GPOR

Institutional investors own 120.6% of Gulfport Energy's shares and insiders 2.14%. The largest holder is Silver Point Capital LP with 14.74% of the shares (2.6M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 9.32% of the float, or 4.95 days of average trading volume. The share count fell 77.5% since 2014.

Related: GPOR analyst forecast, GPOR key metrics. See the GPOR stock overview for the latest quote and news.

GPOR ownership FAQ

Who owns the most Gulfport Energy stock?

The largest shareholders of Gulfport Energy are Silver Point Capital LP (14.74%), BlackRock Inc (12.85%), State Street Corp (5.60%), FMR Inc (4.87%), Vanguard Capital Management, LLC (3.77%).

What percentage of Gulfport Energy is owned by institutions?

Institutions hold 120.6% of Gulfport Energy's shares outstanding; insiders hold 2.14%.

Which funds own Gulfport Energy?

The largest fund holders of Gulfport Energy are iShares Core S&P Small-Cap ETF (5.00%), Vanguard MStar Total Stk Mkt Idx Invest (2.75%), SttStrtSPDRS&POil&GasExplor&ProdtnETF (2.53%), iShares Russell 2000 ETF (2.33%), Avantis US Small Cap Value ETF (2.12%).

What is Gulfport Energy's short interest?

1.4M shares of Gulfport Energy were sold short, 9.32% of the float; at the average daily volume it would take 4.95 days to cover.

Are insiders buying or selling Gulfport Energy?

Of the latest 20 reported insider transactions in Gulfport Energy (since May 14, 2025), 2 were purchases and 18 were sales.

How many shares of Gulfport Energy are outstanding?

Gulfport Energy has 18.0M shares outstanding, of which 14.7M are in the public float.

Oil & Gas E&P: ownership