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        <filer>
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            <ccc>XXXXXXXX</ccc>
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        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0001061630</issuerCik>
        <issuerName>BLACKSTONE MORTGAGE TRUST, INC.</issuerName>
        <secFileNumber>001-14788</secFileNumber>
        <issuerAddress>
          <com:street1>345 PARK AVENUE</com:street1>
          <com:street2>24TH FLOOR</com:street2>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10154</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>2126550220</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Marone Anthony F. JR</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A common stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>225 Liberty St</com:street1>
            <com:street2>Floor 37</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10281</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>506</noOfUnitsSold>
        <aggregateMarketValue>11152.24</aggregateMarketValue>
        <noOfUnitsOutstanding>172311528</noOfUnitsOutstanding>
        <approxSaleDate>08/30/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A common stock</securitiesClassTitle>
        <acquiredDate>08/29/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>BLACKSTONE MORTGAGE TRUST, INC.</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>506</amountOfSecuritiesAcquired>
        <paymentDate>08/29/2023</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Anthony Marone</name>
          <address>
            <com:street1>345 PARK AVENUE</com:street1>
            <com:street2>24TH FLOOR</com:street2>
            <com:city>NEW YORK</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10154</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Class A common stock</securitiesClassTitle>
        <saleDate>06/09/2023</saleDate>
        <amountOfSecuritiesSold>485</amountOfSecuritiesSold>
        <grossProceeds>9584.77</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Anthony Marone</name>
          <address>
            <com:street1>345 PARK AVENUE</com:street1>
            <com:street2>24TH FLOOR</com:street2>
            <com:city>NEW YORK</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10154</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Class A common stock</securitiesClassTitle>
        <saleDate>06/06/2023</saleDate>
        <amountOfSecuritiesSold>400</amountOfSecuritiesSold>
        <grossProceeds>7610.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Anthony Marone</name>
          <address>
            <com:street1>345 PARK AVENUE</com:street1>
            <com:street2>24TH FLOOR</com:street2>
            <com:city>NEW YORK</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10154</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Class A common stock</securitiesClassTitle>
        <saleDate>05/30/2023</saleDate>
        <amountOfSecuritiesSold>1011</amountOfSecuritiesSold>
        <grossProceeds>18577.13</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/30/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>02/21/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>Anthony Marone</signature>
      </noticeSignature>
    </formData>
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text: 144
  0001587738
  XXXXXXXX
  LIVE
  0001061630
  BLACKSTONE MORTGAGE TRUST, INC.
  001-14788
  345 PARK AVENUE
  24TH FLOOR
  NEW YORK
  NY
  10154
  2126550220
  Marone Anthony F. JR
  Officer
  Class A common stock
  Merrill Lynch
  225 Liberty St
  Floor 37
  New York
  NY
  10281
  506
  11152.24
  172311528
  08/30/2023
  NYSE
  Class A common stock
  08/29/2023
  Vesting of restricted stock unit award
  BLACKSTONE MORTGAGE TRUST, INC.
  N
  506
  08/29/2023
  Granted as part of issuer equity compensation plan
  N
  Anthony Marone
  345 PARK AVENUE
  24TH FLOOR
  NEW YORK
  NY
  10154
  Class A common stock
  06/09/2023
  485
  9584.77
  Anthony Marone
  345 PARK AVENUE
  24TH FLOOR
  NEW YORK
  NY
  10154
  Class A common stock
  06/06/2023
  400
  7610.00
  Anthony Marone
  345 PARK AVENUE
  24TH FLOOR
  NEW YORK
  NY
  10154
  Class A common stock
  05/30/2023
  1011
  18577.13
  08/30/2023
  02/21/2023
  Anthony Marone