4 institutions reported holding $5.8M of HARTFORD INSURANCE GROUP INC (HIG.WS) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($4.6M), SIMPLEX TRADING, LLC ($1.1M), GROUP ONE TRADING LLC ($13,252), CenterStar Asset Management, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $4.6M | 34,700 | Added |
| 2 | SIMPLEX TRADING, LLC | $1.1M | 8,600 | Added |
| 3 | GROUP ONE TRADING LLC | $13,252 | 100 | Trimmed |
| 4 | CenterStar Asset Management, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30