3 institutions reported holding $12.1M of HEICO CORP NEW (HEI.A) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($11.0M), SIMPLEX TRADING, LLC ($1.1M), GROUP ONE TRADING LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $11.0M | 30,800 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $1.1M | 3,100 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30