4 institutions reported holding $3.0M of BRUNSWICK CORP (BC-PA) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($2.6M), GROUP ONE TRADING LLC ($387,504), SIMPLEX TRADING, LLC ($8,424), CenterStar Asset Management, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $2.6M | 30,900 | Added |
| 2 | GROUP ONE TRADING LLC | $387,504 | 4,600 | Added |
| 3 | SIMPLEX TRADING, LLC | $8,424 | 100 | Trimmed |
| 4 | CenterStar Asset Management, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30