3 institutions reported holding $9.5M of HUBBELL INC (HUB.A) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($9.4M), SIMPLEX TRADING, LLC ($49,074), GROUP ONE TRADING LLC ($49,074). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $9.4M | 19,200 | New |
| 2 | SIMPLEX TRADING, LLC | $49,074 | 100 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $49,074 | 100 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31