4 institutions reported holding $17.2M of BXP INC (BXP-PB) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($9.5M), SIMPLEX TRADING, LLC ($3.0M), JPMORGAN CHASE & CO ($2.4M), GROUP ONE TRADING LLC ($2.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $9.5M | 183,500 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $3.0M | 57,100 | Added |
| 3 | JPMORGAN CHASE & CO | $2.4M | 47,000 | Added |
| 4 | GROUP ONE TRADING LLC | $2.3M | 44,500 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31