<SEC-DOCUMENT>0001969223-24-000126.txt : 20240222
<SEC-HEADER>0001969223-24-000126.hdr.sgml : 20240222
<ACCEPTANCE-DATETIME>20240222110904
ACCESSION NUMBER:		0001969223-24-000126
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240222
DATE AS OF CHANGE:		20240222

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
		CENTRAL INDEX KEY:			0001100682
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				061397316
		FISCAL YEAR END:			1230

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-15943
		FILM NUMBER:		24663147

	BUSINESS ADDRESS:	
		STREET 1:		251 BALLARDVALE ST
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887
		BUSINESS PHONE:		781-222-6000

	MAIL ADDRESS:	
		STREET 1:		251 BALLARDVALE ST
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHARLES RIVER LABORATORIES INTERNATIONAL INC
		DATE OF NAME CHANGE:	20000605

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHARLES RIVER LABORATORIES HOLDINGS INC
		DATE OF NAME CHANGE:	19991208

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Barbo William D
		CENTRAL INDEX KEY:			0001688104
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		251 BALLARDVALE STREET
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001688104</cik>
          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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  <formData>
    <issuerInfo>
      <issuerCik>0001100682</issuerCik>
      <issuerName>Charles River Laboratories</issuerName>
      <secFileNumber>001-15943</secFileNumber>
      <issuerAddress>
        <com:street1>251 Ballardvale Street</com:street1>
        <com:city>Wilmington</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>01887</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>781-222-6000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Wiliam D. Barbo Revocable Trust of 2019</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Charles River Laboratories</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>4050</noOfUnitsSold>
      <aggregateMarketValue>1000350</aggregateMarketValue>
      <noOfUnitsOutstanding>51300000</noOfUnitsOutstanding>
      <approxSaleDate>02/22/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/22/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Performance Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Charles River Laboratories</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4050</amountOfSecuritiesAcquired>
      <paymentDate>02/22/2019</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>William D Barbo is an Section 16 Insider Officer at Charles River Laboratories.
William D Barbo is the Trustee of the William D Barbo Revocable Trust of 2019.</remarks>
    <noticeSignature>
      <noticeDate>02/22/2024</noticeDate>
      <signature>/s/ UBS Financial Services Inc, as attorney-in-fact for Wiliam D. Barbo Revocable Trust of 2019</signature>
    </noticeSignature>
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