2 institutions reported holding $42,291 of GLADSTONE COMMERCIAL CORP (GOODP) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($24,003), SIMPLEX TRADING, LLC ($18,288). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $24,003 | 2,100 | Added |
| 2 | SIMPLEX TRADING, LLC | $18,288 | 1,600 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31