2 institutions reported holding $1,177 of RHINEBECK BANCORP INC COM (RBKB) in SEC 13F filings for 2026-06-30. Largest institutional holders: GAMMA Investing LLC ($1,177), MassMutual Private Wealth & Trust, FSB ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GAMMA Investing LLC | $1,177 | 68 | Added |
| 2 | MassMutual Private Wealth & Trust, FSB | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30