3 institutions reported holding $30.0M of HARROW INC (HROWL) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($17.1M), GROUP ONE TRADING LLC ($11.5M), SIMPLEX TRADING, LLC ($1.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $17.1M | 402,500 | Added |
| 2 | GROUP ONE TRADING LLC | $11.5M | 270,500 | Added |
| 3 | SIMPLEX TRADING, LLC | $1.4M | 32,500 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30