NBT BANCORP INC — Director's Dealing 2017

May 25, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NBT BANCORP INC (NBTB)
CIK: 0000790359
Period of Report: 2017-05-23

Reporting Person: CIVIL PATRICIA T (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-23	NBT Bancorp Inc. Common Stock	A	682	$0.0	Acquired	23836.451	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$24.5	2024-12-15	NBT Bancorp Inc. Common Stock (2130)	2130	Direct
Non-Qualified Stock Option (right to buy)	$25.92	2026-04-08	NBT Bancorp Inc. Common Stock (1500)	1500	Direct

Footnotes

F1: Acquired pursuant to the NBT Bancorp Inc. 2008 Omnibus Incentive Plan. Each outside director is entitled to receive an annual retainer for Board service in the form of restricted stock units of the Company's common stock that vests in three annual installments.

F2: Pursuant to NBT Non-Employee Director, Divisional Director and Subsidiary Director Stock Option Plan reload grant vests 100% two years after date of its grant.