2 institutions reported holding $119,340 of COPT DEFENSE PROPERTIES (OFC-PL) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($73,440), SIMPLEX TRADING, LLC ($45,900). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $73,440 | 2,400 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $45,900 | 1,500 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31