content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001866531</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001856525</issuerCik>
        <issuerName>Core &amp; Main, Inc.</issuerName>
        <secFileNumber>001-40650</secFileNumber>
        <issuerAddress>
          <com:street1>1830 Craig Park Court</com:street1>
          <com:city>St. Louis</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63146</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>314-432-4700</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Bradford A. Cowles</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue, 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>100000</noOfUnitsSold>
        <aggregateMarketValue>5399000</aggregateMarketValue>
        <noOfUnitsOutstanding>190189434</noOfUnitsOutstanding>
        <approxSaleDate>12/03/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class B Common Stock; Partnership Interests (C&amp;M Holdings, LP)</securitiesClassTitle>
        <acquiredDate>01/01/2018</acquiredDate>
        <natureOfAcquisitionTransaction>Equity Incentive Award through Core &amp; Main Management Feeder LLC</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>100000</amountOfSecuritiesAcquired>
        <paymentDate>01/01/2018</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>This filing consists of Class B Common Stock to be exchanged for Class A Common Stock</remarks>
      <noticeSignature>
        <noticeDate>12/03/2024</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>06/27/2024</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Bradford A. Cowles</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3160}]
text: 144
  0001866531
  XXXXXXXX
  LIVE
  0001856525
  Core & Main, Inc.
  001-40650
  1830 Craig Park Court
  St. Louis
  MO
  63146
  314-432-4700
  Bradford A. Cowles
  Officer
  Class A Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue, 6th Floor
  New York
  NY
  10017
  100000
  5399000
  190189434
  12/03/2024
  NYSE
  Class B Common Stock; Partnership Interests (C&M Holdings, LP)
  01/01/2018
  Equity Incentive Award through Core & Main Management Feeder LLC
  Issuer
  N
  100000
  01/01/2018
  N/A
  Y
  This filing consists of Class B Common Stock to be exchanged for Class A Common Stock
  12/03/2024
  06/27/2024
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Bradford A. Cowles