2 institutions reported holding $333,846 of FORTRESS BIOTECH INC (FBIOP) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($213,282), SIMPLEX TRADING, LLC ($120,564). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $213,282 | 69,700 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $120,564 | 39,400 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30