1 institutions reported holding $3,062 of MAINSTREET BANCSHARES INC COM (MNSB) in SEC 13F filings for 2026-06-30. Largest institutional holders: GAMMA Investing LLC ($3,062). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GAMMA Investing LLC | $3,062 | 124 | Added |
Source: SEC Form 13F filings · as of 2026-06-30