<SEC-DOCUMENT>0001969223-25-000895.txt : 20251031
<SEC-HEADER>0001969223-25-000895.hdr.sgml : 20251031
<ACCEPTANCE-DATETIME>20251031154954
ACCESSION NUMBER:		0001969223-25-000895
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251031
DATE AS OF CHANGE:		20251031

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NBT BANCORP INC
		CENTRAL INDEX KEY:			0000790359
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		ORGANIZATION NAME:           	02 Finance
		EIN:				161268674
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-14703
		FILM NUMBER:		251440357

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NASCA DAVID J
		CENTRAL INDEX KEY:			0001237044
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		ONE GRIMSBY DRIVE
		CITY:			HAMBURG
		STATE:			NY
		ZIP:			14075
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001237044</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000790359</issuerCik>
      <issuerName>NBT BANCORP INC</issuerName>
      <secFileNumber>000-14703</secFileNumber>
      <issuerAddress>
        <com:street1>52 South Broad Street</com:street1>
        <com:city>Norwich</com:city>
        <com:stateOrCountry>NY</com:stateOrCountry>
        <com:zipCode>13815</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>18006282265</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Renaissance Charitable Foundation</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>UBS Financial Services Inc</name>
        <address>
          <com:street1>1000 Harbor Blvd</com:street1>
          <com:street2>3rd Floor</com:street2>
          <com:city>Weehawken</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>07086</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>12255</noOfUnitsSold>
      <aggregateMarketValue>496817</aggregateMarketValue>
      <noOfUnitsOutstanding>52390000</noOfUnitsOutstanding>
      <approxSaleDate>10/31/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>04/09/2008</acquiredDate>
      <natureOfAcquisitionTransaction>OPEN MARKET PURCHASE</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2275</amountOfSecuritiesAcquired>
      <paymentDate>04/09/2008</paymentDate>
      <natureOfPayment>CASH</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>DAVID J NASCA</name>
        <address>
          <com:street1>54 LANOCHE CT</com:street1>
          <com:city>WILLIAMSVILLE</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>14221</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>NBT BANCOURP INC</securitiesClassTitle>
      <saleDate>08/13/2025</saleDate>
      <amountOfSecuritiesSold>19603</amountOfSecuritiesSold>
      <grossProceeds>851097</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Trade is being placed in a donor advised fund; Renaissance Charitable Foundation, which David J Nasca is the grantor of and has granted 12,255 shares of NBTB to. David Nasca was previously the CEO and president of NBT Bancorp, and is still required to file the sale of his NBTB stock that was gifted to his donor advised fund. We've attached the 144 Seller's Letter which details each individual tax lot for this sale, filing does not allow us to enter all 50 tax lots that are available for this trade.</remarks>
    <noticeSignature>
      <noticeDate>10/31/2025</noticeDate>
      <signature>/s/Mijo  Suric, for UBS Financial Services Inc, as attorney-in-fact for Renaissance Charitable Foundation</signature>
    </noticeSignature>
  </formData>

</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
