3 institutions reported holding $1.8M of BLUE BIRD CORP (BLBDW) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($1.4M), GROUP ONE TRADING LLC ($300,048), SIMPLEX TRADING, LLC ($63,167). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $1.4M | 18,000 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $300,048 | 3,800 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $63,167 | 800 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30