NBT Bancorp Inc.

NBTB

Financials

10-QQ2 ended 06/30/2608/07/26 10-QQ1 ended 03/31/2605/08/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2511/07/25 10-QQ2 ended 06/30/2508/08/25

Disclosures

8-KCurrent report10/27/26 8-KCurrent report09/21/26 8-KCurrent report09/08/26 8-KCurrent report07/27/26 8-KCurrent report05/19/26

Prospectuses and Registrations

424B3Prospectus11/07/24 S-4/ARegistration (business combination, amended)11/05/24 S-4Registration (business combination)10/24/24 S-8Registration of securities for employees05/21/24 S-3ASRAutomatic shelf registration03/26/24

Proxies

DEF 14ADefinitive proxy04/06/26 DEFA14AAdditional proxy materials04/06/26 DEF 14ADefinitive proxy04/07/25 DEFA14AAdditional proxy materials04/07/25 DEF 14ADefinitive proxy04/05/24

Ownership

Form 3Initial insider ownership10/02/26 Form 4Insider transaction07/30/26 Form 4Insider transaction07/30/26 144Proposed sale of securities07/29/26 144Proposed sale of securities07/29/26

Other

11-KEmployee stock purchase plan report06/24/26 ARSAnnual report to shareholders04/06/26 11-KEmployee stock purchase plan report06/26/25 42542512/13/24 EFFECTRequest for effectiveness11/07/24