4 institutions reported holding $329,662 of ALTA EQUIPMENT GROUP INC (ALTG.WS) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($203,805), IMC-Chicago, LLC ($109,343), Alpine Global Management, LLC ($8,750), SIMPLEX TRADING, LLC ($7,764). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $203,805 | 31,500 | Added |
| 2 | IMC-Chicago, LLC | $109,343 | 16,900 | New |
| 3 | Alpine Global Management, LLC | $8,750 | 500 | New |
| 4 | SIMPLEX TRADING, LLC | $7,764 | 1,200 | Added |
Source: SEC Form 13F filings · as of 2026-06-30