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GPOR in the 13F filings

Gulfport Energy Corp · CUSIP 402635502

Sector · EnergyTheme · Energy and power infrastructure· L3VLUP-definedTheme · Oil and gas
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 5 listed it in both
Shares listed
2,492,691
combined, among listed positions
Reported value
$527m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 10 buyers (opened or added shares) and 18 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -822,282.

Managers listing GPOR in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Fidelity (FMR LLC)915,534$194munder 0.1%Trimmed-156,63415 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP398,931$84munder 0.1%Added+45,68214 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd223,669$47munder 0.1%Added+9,09518 May 2026 (the filing on sec.gov)
Millennium Management LLC202,478$43munder 0.1%Trimmed-123,42815 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC137,200$29munder 0.1%Added+117,10014 May 2026 (the filing on sec.gov)
Wellington Management Group LLP119,118$25munder 0.1%Trimmed-320,44115 May 2026 (the filing on sec.gov)
AQR Capital Management LLC106,700$23munder 0.1%Trimmed-27,76215 May 2026 (the filing on sec.gov)
Bridgewater Associates LP91,835$19m0.09%Trimmed-22,33515 May 2026 (the filing on sec.gov)
Invesco Ltd53,884$11munder 0.1%Trimmed-15,57512 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP53,117$11munder 0.1%Trimmed-11,17115 May 2026 (the filing on sec.gov)
Marshall Wace LLP31,025$6.6munder 0.1%Added+29,92515 May 2026 (the filing on sec.gov)
Citadel Advisors LLC30,802$6.5munder 0.1%Added+19,28115 May 2026 (the filing on sec.gov)
Two Sigma Investments LP26,670$5.6munder 0.1%Added+12215 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC21,338$4.5munder 0.1%Added+17,50915 May 2026 (the filing on sec.gov)
Man Group PLC18,195$3.9munder 0.1%Trimmed-28,99015 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc17,872$3.8munder 0.1%Trimmed-107,08415 May 2026 (the filing on sec.gov)
AllianceBernstein LP17,660$3.7munder 0.1%Trimmed-190,66315 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC12,688$2.7munder 0.1%Added+9,17115 May 2026 (the filing on sec.gov)
Caxton Associates LLP6,423$1.4munder 0.1%Trimmed-3,63814 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP2,765$585kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.2,026$429kunder 0.1%Trimmed-1,91115 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC1,438$304kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC1,131$239kunder 0.1%Trimmed-23527 Oct 2026 (the filing on sec.gov)
Freestone Grove Partners LP192$41kunder 0.1%Trimmed-53,57715 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
6 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

05101520222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
GPOR by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20215$153mn.a.n.a.
Q3 20215$161mn.a.n.a.
Q4 20215$141mn.a.n.a.
Q1 20225$170mn.a.n.a.
Q2 20223$49mn.a.n.a.
Q3 20224$61mn.a.n.a.
Q4 20222$51mn.a.n.a.
Q1 20232$47mn.a.n.a.
Q2 20235$92mn.a.n.a.
Q3 20236$255mn.a.n.a.
Q4 202310$322m64
Q1 202411$468m94
Q2 202410$481m56
Q3 20246$369m51
Q4 20247$358m33
Q1 202510$387m55
Q2 202511$357m65
Q3 20256$284m32
Q4 20255$155m1812
Q1 20264$153m1018
Q2 20264$138m1014

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

GPOR and GEV →GPOR and XOM →GPOR and CVX →Choose a stock to compare with GPOR →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own GPOR, latest filings →Back to the 13F Explorer →