Timothy E. Delaney - 28 Jan 2026 Form 4/A - Amendment Insider Report for NBT BANCORP INC (NBTB)

Role: Director
Signature: By: Annette L. Burns, Power of Attorney For: Timothy E. Delaney
Issuer symbol: NBTB
Transactions as of: 28 Jan 2026
Net transactions value: +$976,708
Form type: 4/A - Amendment
Filing time: 13 Mar 2026, 11:03:40 UTC
Date Of Original Report: 29 Jan 2026
Previous filing: 13 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DELANEY TIMOTHY E	Director	52 SOUTH BROAD STREET, NORWICH	By: Annette L. Burns, Power of Attorney For: Timothy E. Delaney	13 Mar 2026	0001202671

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NBTB	NBT Bancorp Inc. Common Stock	Purchase	$976,708	+22,730		$42.97	22,730	28 Jan 2026	by Corporation	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On January 29, 2026, the reporting person filed a Form 4 which inadvertently reported securities were held directly by the reporting person. In fact, the reported securities are held by Wesson Group LLC, a Corporation for which the reporting person serves as the President.