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Gulfport Energy Corp (GPOR) institutional ownership

Latest close $154.00 Jul 21, 2026
Market cap$3.0B 52-week range SectorEnergy
Funds holding · Q1 2026
303
reported GPOR position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
157 buyers · 146 sellers

Gulfport Energy Corp (GPOR) price and institutional activity

Dates

Q1 2026

$0 bought by 157 investors
Assenagon Asset Management S.A.State Street +155 more
$0 sold by 146 investors
Silver Point Capital L.P.Wellington Management Group LLP +144 more
Bought Sold Totals per quarter; hover a bar for the names.

Gulfport Energy Corp (GPOR) institutional activity · 303

Investor Type Est. change Change Δ Own Date
Silver Point Capital L.P. · Reduced
Change −844K Date Q1 2026
Silver Point Capital L.P. Reduced· Q1 2026 −844K Q1 2026
Assenagon Asset Management S.A. · Added
Change +458K Date Q1 2026
Assenagon Asset Management S.A. Added· Q1 2026 +458K Q1 2026
Wellington Management Group LLP · Reduced
Change −320K Δ Own −72.9% Date Q1 2026
Wellington Management Group LLP Reduced· Q1 2026 −320K −72.9% Q1 2026
State Street · Added
Change +197K Date Q1 2026
State Street Added· Q1 2026 +197K Q1 2026
Alliancebernstein L.P. · Reduced
Change −191K Date Q1 2026
Alliancebernstein L.P. Reduced· Q1 2026 −191K Q1 2026
Gemsstock Ltd. · Added
Change +171K Date Q1 2026
Gemsstock Ltd. Added· Q1 2026 +171K Q1 2026
FMR LLC · Reduced
Change −157K Δ Own −14.6% Date Q1 2026
FMR LLC Reduced· Q1 2026 −157K −14.6% Q1 2026
Driehaus Capital Management LLC · Exited
Change −155K Δ Own −100.0% Date Q1 2026
Driehaus Capital Management LLC Exited· Q1 2026 −155K −100.0% Q1 2026
Palo Duro Investment Partners, LP · Added
Change +130K Date Q1 2026
Palo Duro Investment Partners, LP Added· Q1 2026 +130K Q1 2026
First Pacific Advisors, LP · Exited
Change −127K Δ Own −100.0% Date Q1 2026
First Pacific Advisors, LP Exited· Q1 2026 −127K −100.0% Q1 2026
Millennium Management LLC · Reduced
Change −123K Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −123K Q1 2026
Hite Hedge Asset Management LLC · Added
Change +119K Date Q1 2026
Hite Hedge Asset Management LLC Added· Q1 2026 +119K Q1 2026
Renaissance Technologies LLC Added· Q1 2026 +117K +582.6% Q1 2026
T. Rowe Price Associates · Reduced
Change −107K Date Q1 2026
T. Rowe Price Associates Reduced· Q1 2026 −107K Q1 2026
Nomura Asset Management International Inc. · Added
Change +102K Date Q1 2026
Nomura Asset Management International Inc. Added· Q1 2026 +102K Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 303

Famous investor activity in Gulfport Energy Corp (GPOR)

Gulfport Energy Corp (GPOR) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Silver Point Capital L.P. · Director Grant (A) 1K
Owned 1K Trade date May 28, 2026 Filed date Jun 1, 2026
Silver Point Capital L.P. Director Grant (A) 1K 1K May 28, 2026 Jun 1, 2026
Reganato David A. · Director Grant (A) 1K
Owned 1K Trade date May 28, 2026 Filed date Jun 1, 2026
Reganato David A. Director Grant (A) 1K 1K May 28, 2026 Jun 1, 2026
Cutt Timothy J. · Director Grant (A) 1K
Owned 30K Trade date May 28, 2026 Filed date Jun 1, 2026
Cutt Timothy J. Director Grant (A) 1K 30K May 28, 2026 Jun 1, 2026
Sluiter Michael · Officer Grant (A) 1K
Owned 10K Trade date May 28, 2026 Filed date Jun 1, 2026
Sluiter Michael Officer Grant (A) 1K 10K May 28, 2026 Jun 1, 2026
Dell'Osso Domenic J. Jr · Director Grant (A) 23K
Owned 23K Trade date May 28, 2026 Filed date Jun 1, 2026
Dell'Osso Domenic J. Jr Director Grant (A) 23K 23K May 28, 2026 Jun 1, 2026
Martinez Jason Joseph · Director Grant (A) 1K
Owned 5K Trade date May 28, 2026 Filed date Jun 1, 2026
Martinez Jason Joseph Director Grant (A) 1K 5K May 28, 2026 Jun 1, 2026
Powers Jean Marie · Director Grant (A) 1K
Owned 4K Trade date May 28, 2026 Filed date Jun 1, 2026
Powers Jean Marie Director Grant (A) 1K 4K May 28, 2026 Jun 1, 2026
Shafer-Malicki Mary · Director Grant (A) 1K
Owned 4K Trade date May 28, 2026 Filed date Jun 1, 2026
Shafer-Malicki Mary Director Grant (A) 1K 4K May 28, 2026 Jun 1, 2026
Wolf David D. · Director Grant (A) 1K
Owned 5K Trade date May 28, 2026 Filed date Jun 1, 2026
Wolf David D. Director Grant (A) 1K 5K May 28, 2026 Jun 1, 2026
Willrath Matthew · Officer Tax withholding or exercise payment (F) -$24K
Price $178.22 Qty -134 Owned 2K Trade date May 26, 2026 Filed date May 27, 2026
Willrath Matthew Officer Tax withholding or exercise payment (F) $178.22 -134 -$24K 2K May 26, 2026 May 27, 2026
Hodges Michael L. · Officer Tax withholding or exercise payment (F) -$306K
Price $207.00 Qty -1K Owned 17K Trade date Apr 3, 2026 Filed date Apr 3, 2026
Hodges Michael L. Officer Tax withholding or exercise payment (F) $207.00 -1K -$306K 17K Apr 3, 2026 Apr 3, 2026
Martinez Jason Joseph · Director Sell −$85K
Price $213.40 Qty −400 Owned 4K Trade date Apr 2, 2026 Filed date Apr 3, 2026
Martinez Jason Joseph Director Sell $213.40 −400 −$85K 4K Apr 2, 2026 Apr 3, 2026
Zitkus Lester · Officer Sell −$401K
Price $213.90 Qty −2K Owned 6K Trade date Mar 24, 2026 Filed date Mar 26, 2026
Zitkus Lester Officer Sell $213.90 −2K −$401K 6K Mar 24, 2026 Mar 26, 2026
Cutt Timothy J. · Director Grant (A) 5K
Owned 28K Trade date Mar 9, 2026 Filed date Mar 11, 2026
Cutt Timothy J. Director Grant (A) 5K 28K Mar 9, 2026 Mar 11, 2026
Craine Patrick K. · Officer 2 operations −$418K
Price $207.93–$210.25 Qty −2K Owned 12K Trade date Mar 5, 2026 Filed date Mar 6, 2026
Craine Patrick K. Officer 2 operations $207.93–$210.25 −2K −$418K 12K Mar 5, 2026 Mar 6, 2026
15 of 63
15 of 63 Sign in to continue to older insider transactions.

Gulfport Energy Corp (GPOR) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Silver Point Capital L.P. 5.5M
% of shares outstanding 28.1% Filing date Nov 25, 2024
Silver Point Capital L.P. 5.5M 28.1% Nov 25, 2024
Blackrock, Inc. 2.2M
% of shares outstanding 12.5% Filing date Jul 8, 2026
Blackrock, Inc. 2.2M 12.5% Jul 8, 2026
Wellington Management Group LLP 1.4M
% of shares outstanding 7.8% Filing date Nov 8, 2024
Wellington Management Group LLP 1.4M 7.8% Nov 8, 2024
FMR LLC 916K
% of shares outstanding 4.9% Filing date May 6, 2026
FMR LLC 916K 4.9% May 6, 2026
JPMorgan Chase & Co 714K
% of shares outstanding 3.8% Filing date Nov 8, 2023
JPMorgan Chase & Co 714K 3.8% Nov 8, 2023
Mackay Shields LLC 404K
% of shares outstanding 2.2% Filing date Apr 12, 2024
Mackay Shields LLC 404K 2.2% Apr 12, 2024
Alliancebernstein L.P. 12K
% of shares outstanding 0.1% Filing date Feb 14, 2023
Alliancebernstein L.P. 12K 0.1% Feb 14, 2023
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Gulfport Energy Corp (GPOR) ownership FAQ

Who owns GPOR?

303 reporting institutions disclosed GPOR position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.