4 institutions reported holding $3.2M of BRUNSWICK CORP (BC-PA) in SEC 13F filings for 2026-03-31. Largest institutional holders: CenterStar Asset Management, LLC ($2.0M), IMC-Chicago, LLC ($967,708), SIMPLEX TRADING, LLC ($101,864), GROUP ONE TRADING LLC ($36,380). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CenterStar Asset Management, LLC | $2.0M | 28,100 | New |
| 2 | IMC-Chicago, LLC | $967,708 | 13,300 | New |
| 3 | SIMPLEX TRADING, LLC | $101,864 | 1,400 | Added |
| 4 | GROUP ONE TRADING LLC | $36,380 | 500 | New |
Source: SEC Form 13F filings · as of 2026-03-31