6 institutions reported holding $15.8M of WEYERHAEUSER CO (WY-PA) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($9.9M), SIMPLEX TRADING, LLC ($2.9M), GROUP ONE TRADING LLC ($2.2M), Davis Asset Management, L.P. ($415,743), CenterStar Asset Management, LLC ($315,147). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $9.9M | 405,900 | Added |
| 2 | SIMPLEX TRADING, LLC | $2.9M | 119,400 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $2.2M | 91,900 | Trimmed |
| 4 | Davis Asset Management, L.P. | $415,743 | 17,301 | New |
| 5 | CenterStar Asset Management, LLC | $315,147 | 12,900 | New |
| 6 | JPMORGAN CHASE & CO | $12,140 | 500 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31