<SEC-DOCUMENT>0001921094-24-001002.txt : 20240808
<SEC-HEADER>0001921094-24-001002.hdr.sgml : 20240808
<ACCEPTANCE-DATETIME>20240808160212
ACCESSION NUMBER:		0001921094-24-001002
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240808
DATE AS OF CHANGE:		20240808

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Builders FirstSource, Inc.
		CENTRAL INDEX KEY:			0001316835
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-LUMBER & OTHER BUILDING MATERIALS DEALERS [5211]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				522084569
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-40620
		FILM NUMBER:		241188063

	BUSINESS ADDRESS:	
		STREET 1:		6031 CONNECTION DR., STE. 400
		CITY:			IRVING
		STATE:			TX
		ZIP:			75039
		BUSINESS PHONE:		(214) 880-3500

	MAIL ADDRESS:	
		STREET 1:		6031 CONNECTION DR., STE. 400
		CITY:			IRVING
		STATE:			TX
		ZIP:			75039

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Steinke Craig Arthur
		CENTRAL INDEX KEY:			0001366433
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		19 NORFIELD ROAD
		CITY:			WESTON
		STATE:			CT
		ZIP:			06883
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
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  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001366433</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001316835</issuerCik>
      <issuerName>Builders FirstSource, Inc.</issuerName>
      <secFileNumber>001-40620</secFileNumber>
      <issuerAddress>
        <com:street1>6031 CONNECTION DR., STE. 400</com:street1>
        <com:city>IRVING</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>75039</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(214) 880-3500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Steinke Craig Arthur</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co., Inc.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>30000</noOfUnitsSold>
      <aggregateMarketValue>4610379.00</aggregateMarketValue>
      <noOfUnitsOutstanding>116454416</noOfUnitsOutstanding>
      <approxSaleDate>08/08/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/01/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapses - See Remarks</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>BUILDERS FIRSTSOURCE, INC.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>30000</amountOfSecuritiesAcquired>
      <paymentDate>08/01/2019</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Shares on this filing were acquired and paid for between 08/01/2019 - 06/14/2024.</remarks>
    <noticeSignature>
      <noticeDate>08/08/2024</noticeDate>
      <signature>Craig Arthur Steinke</signature>
    </noticeSignature>
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</SEC-DOCUMENT>
