2 institutions reported holding $108,474 of ALTA EQUIPMENT GROUP INC (ALTG.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($107,400), SIMPLEX TRADING, LLC ($1,074). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $107,400 | 20,000 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $1,074 | 200 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31