NBT BANCORP INC — Director's Dealing 2015

Sep 16, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NBT BANCORP INC (NBTB)
CIK: 0000790359
Period of Report: 2015-09-14

Reporting Person: DIETRICH MARTIN A (Director, President & CEO NBT Bancorp)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-09-14	NBT Bancorp Inc. Common Stock	M	15000.0	$22.352	Acquired	201356.569	Direct
2015-09-14	NBT Bancorp Inc. Common Stock	F	12571.0	$26.67	Disposed	188785.569	Direct
2015-09-14	NBT Bancorp Inc. Common Stock	F	1359.0	$26.67	Disposed	187426.569	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-09-14	Non-Qualified Stock Option (right to buy)	$22.352	M	15000.0	Disposed	2016-01-01	NBT Bancorp Inc. Common Stock (15000)	Direct
2015-09-14	Non-Qualified Stock Option (right to buy)	$26.67	A	13641.0	Acquired	2025-09-14	NBT Bancorp Inc. Common Stock (13641)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
NBT Bancorp Inc. Common Stock	18945.912	Indirect
NBT Bancorp Inc. Common Stock	755	Indirect
NBT Bancorp Inc. Common Stock	10731.723	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$20.19	2020-01-15	NBT Bancorp Inc. Common Stock (25000)	25000	Direct
Non-Qualified Stock Option (right to buy)	$20.3617	2018-01-15	NBT Bancorp Inc. Common Stock (25000)	25000	Direct
Non-Qualified Stock Option (right to buy)	$20.94	2021-11-18	NBT Bancorp Inc. Common Stock (30000)	30000	Direct
Non-Qualified Stock Option (right to buy)	$24.5692	2017-12-27	NBT Bancorp Inc. Common Stock (12641)	12641	Direct
Non-Qualified Stock Option (right to buy)	$25.15	2024-10-29	NBT Bancorp Inc. Common Stock (20575)	20575	Direct
Non-Qualified Stock Option (right to buy)	$25.36	2024-10-29	NBT Bancorp Inc. Common Stock (1166)	1166	Direct
Non-Qualified Stock Option (right to buy)	$25.38	2019-01-15	NBT Bancorp Inc. Common Stock (25000)	25000	Direct
Non-Qualified Stock Option (right to buy)	$25.762	2017-01-01	NBT Bancorp Inc. Common Stock (28000)	28000	Direct

Footnotes

F1: Pursuant to NBT Bancorp Inc. 1993 Stock Option Plan grant vests 40% for first year, 20% annually for following years.

F2: Pursuant to NBT Bancorp Inc. 1993 Stock Option Plan reload grant vests 100% two years after date of its grant.

F3: Pursuant to NBT Bancorp Inc. Omnibus Stock Option Agreement the grant vests 40% for first year, 20% annually for following years.