Who owns Gulfport Energy Corp?
Institutional ownership of GPOR from SEC Form 13F filings across 192 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
192
13F holders
$2.24B
value, 2026 filers
74.4%
of shares outstanding (13.4M sh)
29
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of GPOR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.3M | $385.7M | 0.0% | 12.6% | +95.3% |
| 2 | FMR LLC | 861,942 | $146.3M | 0.0% | 4.8% | -5.9% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 666,018 | $113.0M | 0.0% | 3.7% | -52.4% |
| 4 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 558,718 | $94.8M | 0.1% | 3.1% | -5.3% |
| 5 | VICTORY CAPITAL MANAGEMENT INC | 530,564 | $90.0M | 0.1% | 3% | -1.4% |
| 6 | JENNISON ASSOCIATES LLC | 527,245 | $89.5M | 0.1% | 2.9% | -15.1% |
| 7 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 470,059 | $79.8M | 0.1% | 2.6% | +2.2% |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 454,113 | $77.1M | 0.0% | 2.5% | +46.0% |
| 9 | HITE Hedge Asset Management LLC | 403,403 | $68.5M | 3.7% | 2.2% | +172.2% |
| 10 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 388,730 | $66.0M | 0.0% | 2.2% | -2.6% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 386,941 | $65.7M | 0.0% | 2.2% | +2.5% |
| 12 | PRINCIPAL FINANCIAL GROUP INC | 377,228 | $64.0M | 0.0% | 2.1% | +21.7% |
| 13 | JPMORGAN CHASE & CO | 372,534 | $62.0M | 0.0% | 2.1% | +4.4% |
| 14 | AMERICAN CENTURY COMPANIES INC | 338,550 | $57.5M | 0.0% | 1.9% | +67.9% |
| 15 | WESTWOOD HOLDINGS GROUP INC | 248,569 | $42.2M | 0.3% | 1.4% | -8.3% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 239,555 | $40.7M | 7.0% | 1.3% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 239,555 | $40.7M | 0.0% | 1.3% | -0.2% |
| 18 | Jupiter Topco LLCNEW | 239,182 | $40.6M | 0.0% | 1.3% | new |
| 19 | Hancock Prospecting Pty LtdNEW | 227,500 | $38.6M | 0.7% | 1.3% | new |
| 20 | NORTHERN TRUST CORP | 209,831 | $35.6M | 0.0% | 1.2% | +17.2% |
| 21 | Assenagon Asset Management S.A. | 172,015 | $29.2M | 0.0% | 1% | -63.2% |
| 22 | Bridgewater Associates, LP | 159,943 | $27.1M | 0.1% | 0.9% | +74.2% |
| 23 | Pictet Asset Management Holding SA | 157,712 | $26.8M | 0.0% | 0.9% | +5.4% |
| 24 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 156,661 | $26.6M | 0.1% | 0.9% | -21.2% |
| 25 | AMERIPRISE FINANCIAL INC | 133,140 | $22.6M | 0.0% | 0.7% | +30.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.