Rhinebeck Bancorp, Inc. (RBKB) Institutional Ownership

Ownership Summary

Rhinebeck Bancorp, Inc. (NASDAQ:RBKB) currently has 43 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• These investors collectively held 20.7% of the company's total shares outstanding in December 2025, up from 20.6% in September 2025.
• Quarterly data indicates a 0.45% shift in institutional share volume, and the annual owner count reflects an increase of 152.94%.
• The latest 13F cycle for Rhinebeck Bancorp reveals that of 43 total investors, 20 funds grew their exposure, whereas 12 reduced theirs and 11 made no changes.
• Collectively, institutional investors increased their stake in Rhinebeck Bancorp to 2.23Mn shares as of December 2025, a change that is up by 9.89K shares quarter on quarter and up 480.98K shares year over year.
• M3F, Inc.'s holding of 1.02Mn shares as of December 31, 2025 makes it the primary institutional investor in Rhinebeck Bancorp, owning 9.42% of the stock.
• Among the most significant buyers of Rhinebeck Bancorp during December 2025 were M3F, Inc. (17.62K), BlackRock, Inc. (4.54K), GEODE CAPITAL MANAGEMENT, LLC (3.26K), STATE STREET CORP (2.20K), VANGUARD GROUP INC (2.07K).
• Leading sellers of Rhinebeck Bancorp stock in December 2025 included ALLIANCEBERNSTEIN L.P. (15.59K), NORTHERN TRUST CORP (4.18K), RHUMBLINE ADVISERS (3.37K), UBS Group AG (2.32K), RENAISSANCE TECHNOLOGIES LLC (1.40K).
• The top 10 institutional holders of Rhinebeck Bancorp for the quarter ending December 2025 included M3F, Inc. (1.02Mn), ALLIANCEBERNSTEIN L.P. (375.37K), VANGUARD GROUP INC (238.28K), BlackRock, Inc. (148.84K), GEODE CAPITAL MANAGEMENT, LLC (92.37K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (72.76K), Empowered Funds, LLC (57.76K), NORTHERN TRUST CORP (31.73K), STATE STREET CORP (29.92K), DIMENSIONAL FUND ADVISORS LP (29.88K).