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: DIETRICH MARTIN A (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	151541.443	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
NBT Bancorp Inc. Common Stock	340	Indirect

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: 30,340 shares were transferred by the insider from the 401k and ESOP to direct holdings.