2 institutions reported holding $3.0M of GULFPORT ENERGY CORP (GPORQ) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($2.9M), Pinnacle Holdings, LLC ($48,874). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $2.9M | 17,200 | Added |
| 2 | Pinnacle Holdings, LLC | $48,874 | 288 | New |
来源：SEC 13F 申报文件 · 截至 2026-06-30