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Public ownership evidence

Gulfport Energy Corporation (GPOR) Ownership Disclosures

Read GPOR insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-09-252026-09-24Cutt Timothy J.S2,500Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-24 and its public availability date is 2026-09-25. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001678505-26-000010 ↗SEC 0001988564-26-000008 ↗SEC 0001504988-26-000012 ↗

Recent Form 4 activity

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2026-09-252026-09-24Cutt Timothy J.S2,500Not reported
2026-09-042026-09-02Willrath MatthewS325Not reported
2026-08-112026-08-07DELL'OSSO DOMENIC J JRP1,600Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-294$679None
Cornerstone Financial Management LLC2026-03-312026-08-294$846None
Cornerstone Financial Management LLC2025-12-312026-08-294$832None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2518,266$3,099,740None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,099,740$18,266,000None
Assenagon Asset Management S.A.2026-06-302026-08-22172,015$29,190,946None
HARVEY CAPITAL MANAGEMENT INC2026-06-302026-08-222,300$390,310None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-203,437$583,259None
Copia Wealth Management2026-06-302026-08-1912$2,036None
Ensign Peak Advisors, Inc2026-03-312026-08-19600$126,942None
Livforsakringsbolaget Skandia, Omsesidigt2026-06-302026-08-197,700$1,306,690None
Empowered Funds, LLC2026-06-302026-08-184,523$767,553None
Silver Point Capital L.P.2026-06-302026-08-182,607,269$442,453,549None
HARVEY CAPITAL MANAGEMENT INC2026-06-302026-08-182,300$390,310None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1818,056$3,064,103None
SummitTX Capital, L.P.2026-06-302026-08-153,995$677,952None
SEI INVESTMENTS CO2026-06-302026-08-1526,887$4,562,724None
SEI INVESTMENTS CO2026-06-302026-08-1510$1,700None
Federation des caisses Desjardins du Quebec2026-06-302026-08-155,150$874,158None
Rafferty Asset Management, LLC2026-06-302026-08-1520,774$3,525,348None
Quarry LP2026-06-302026-08-1520$3,394None
T. Rowe Price Investment Management, Inc.2026-06-302026-08-15524,782$89,056,000None
CSM Advisors, LLC2026-06-302026-08-1531,811$5,399,000None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15239,555$40,652,484None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15239,555$40,652,484None
Gemsstock Ltd.2026-06-302026-08-15139,899$23,740,861None
Diametric Capital, LP2026-06-302026-08-158,684$1,473,674None
OSAIC HOLDINGS, INC.2026-06-302026-08-15206$34,958None
OSAIC HOLDINGS, INC.2026-06-302026-08-15361$61,261None
Squarepoint Ops LLC2026-06-302026-08-153,470$588,859None
Man Group plc2026-06-302026-08-15696$118,111None
Man Group plc2026-06-302026-08-15700$118,790None
Steamboat Capital Partners, LLC2026-06-302026-08-1544,694$7,584,572None
MetLife Investment Management, LLC2026-06-302026-08-1512,092$2,052,012None
Engineers Gate Manager LP2026-06-302026-08-157,373$1,251,198None
JANE STREET GROUP, LLC2026-06-302026-08-153,800$644,860Put
JANE STREET GROUP, LLC2026-06-302026-08-1535,800$6,075,260Call
Orion Porfolio Solutions, LLC2026-06-302026-08-155,375$912,150None
Zimmer Partners, LP2026-06-302026-08-1576,000$12,897,200None
Legal & General Group Plc2026-06-302026-08-1510,447$1,772,856None
Legal & General Group Plc2026-06-302026-08-1518,995$3,223,452None
DRW Securities, LLC2026-06-302026-08-151,950$330,915None
Ensign Peak Advisors, Inc2026-06-302026-08-15850$144,245None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1559,400$10,080,180Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-159,600$1,629,120Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-159,072$1,539,518None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-157$1,018None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-157$1,018None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-151$170None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-156$849None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗HARVEY CAPITAL MANAGEMENT INC ↗MERCER GLOBAL ADVISORS INC /ADV ↗Copia Wealth Management ↗Ensign Peak Advisors, Inc ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.