3 institutions reported holding $523,572 of BRANDYWINE RLTY TR (BDN-PE) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($379,129), IMC-Chicago, LLC ($104,877), GROUP ONE TRADING LLC ($39,566). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $379,129 | 139,900 | Added |
| 2 | IMC-Chicago, LLC | $104,877 | 38,700 | New |
| 3 | GROUP ONE TRADING LLC | $39,566 | 14,600 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31