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GPOR · Gulfport Energy Corp · Holdings

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$154.40 +1.05 (+0.68%) At close · Oct 2
Market Cap
$2.73B
Shares
17.68M
Volume · Oct 2 225.58K Avg daily vol (3M) 305.17K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 293
Total Value: $3,609,126,731
Total Shares: 21,267,733
Showing 1–100 of 298 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 293 13F filers
Top Holder
12.3%
Sep 2023 → Jun 2026 · range 10.5% – 32.7%
of institutional value
Top 5
34.8%
Sep 2023 → Jun 2026 · range 30.9% – 53.4%
of institutional value
Top 10
47.8%
Sep 2023 → Jun 2026 · range 45.3% – 66.9%
of institutional value
HHI
398
Sep 2023 → Jun 2026 · range 302 – 1,251
Broadly held
Showing 100 of 298
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 874499 CUSIP 402635502 13F (30d) 4 filings 4 filers Visit website Investor relations