Ruth H. Mahoney - 15 Jan 2026 Form 4 Insider Report for NBT BANCORP INC (NBTB)

Role
EVP/President of Wealth Mgmt
Signature
By: Annette L. Burns, Power of Attorney For: Ruth H. Mahoney
Issuer symbol
NBTB
Transactions as of
15 Jan 2026
Net transactions value
-$41,175
Form type
4
Filing time
16 Jan 2026, 15:51:12 UTC
Previous filing
13 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mahoney Ruth H EVP/President of Wealth Mgmt 52 SOUTH BROAD STREET, NORWICH By: Annette L. Burns, Power of Attorney For: Ruth H. Mahoney 16 Jan 2026 0001881927

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBTB NBT Bancorp Inc. Common Stock Tax liability $9,922 -227 -1.3% $43.71 17,376 15 Jan 2026 Direct
transaction NBTB NBT Bancorp Inc. Common Stock Tax liability $9,966 -228 -1.3% $43.71 17,148 15 Jan 2026 Direct
transaction NBTB NBT Bancorp Inc. Common Stock Tax liability $10,665 -244 -1.4% $43.71 16,904 15 Jan 2026 Direct
transaction NBTB NBT Bancorp Inc. Common Stock Tax liability $10,622 -243 -1.4% $43.71 16,661 15 Jan 2026 Direct
holding NBTB NBT Bancorp Inc. Common Stock 3,496 15 Jan 2026 401k

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding NBTB Phantom Stock 9,288 15 Jan 2026 NBT Bancorp Inc. Common Stock 9,288 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each share of phantom stock is deemed invested in one share of NBT Bancorp Inc. common stock pursuant to the terms of the Deferred Compensation Plan.