NBT Bancorp Inc.

NBT Bancorp Inc. is a financial holding company headquartered in Norwich, NY, with total assets of $16.21 billion at June 30, 2026. The Company primarily operates through NBT Bank, N.A., a full-service community bank, and through two financial services companies. NBT Bank, N.A. has 174 banking locations in New York, Pennsylvania, Vermont, Massachusetts, New Hampshire, Maine and Connecticut. EPIC Retirement Plan Services, based in Rochester, NY, is a national benefits administration firm. NBT Insurance Agency, LLC, based in Norwich, NY, is a full-service regional insurance agency. More information about NBT and its divisions is available online at: www.nbtbancorp.com, www.nbtbank.com, www.epicrps.com and www.nbtbank.com/insurance.

Current securities

1. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsSep 21, 2026
2. Regulation FD DisclosureSep 8, 2026
3. 10-Q filingAug 7, 2026
4. 4 filingJul 30, 2026
5. 144 filingJul 29, 2026