<SEC-DOCUMENT>0001140361-21-012879-index.html : 20210415
<SEC-HEADER>0001140361-21-012879.hdr.sgml : 20210415
<ACCEPTANCE-DATETIME>20210415083348
ACCESSION NUMBER:		0001140361-21-012879
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210415
DATE AS OF CHANGE:		20210415

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NBT BANCORP INC
		CENTRAL INDEX KEY:			0000790359
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				161268674
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14703
		FILM NUMBER:		21827386

	BUSINESS ADDRESS:	
		STREET 1:		52 S BROAD ST
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
		BUSINESS PHONE:		6073372265

	MAIL ADDRESS:	
		STREET 1:		52 S. BROAD STREET
		CITY:			NORWICH
		STATE:			NY
		ZIP:			13815
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>nc10020076x2_defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: nc10020076x2_defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>nc10020076x2_nc1.jpg
<TEXT>
Document 2 - file: nc10020076x2_nc1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>nc10020076x2_nc2.jpg
<TEXT>
Document 3 - file: nc10020076x2_nc2.jpg

</DOCUMENT>
</SEC-DOCUMENT>