3 institutions reported holding $1.8M of SANDRIDGE ENERGY INC (SDRWW) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($1.1M), IMC-Chicago, LLC ($531,560), SIMPLEX TRADING, LLC ($137,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $1.1M | 82,600 | Trimmed |
| 2 | IMC-Chicago, LLC | $531,560 | 38,800 | Added |
| 3 | SIMPLEX TRADING, LLC | $137,000 | 10,000 | Added |
Source: SEC Form 13F filings · as of 2026-06-30