3 institutions reported holding $787,248 of RIMINI STR INC DEL (RMNIW) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($656,040), GROUP ONE TRADING LLC ($131,208), SIMPLEX TRADING, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $656,040 | 154,000 | New |
| 2 | GROUP ONE TRADING LLC | $131,208 | 30,800 | Added |
| 3 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30