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>0001430466</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001756262</issuerCik>
        <issuerName>Transmedics Group Inc</issuerName>
        <secFileNumber>001-38891</secFileNumber>
        <issuerAddress>
          <com:street1>200 Minuteman Road</com:street1>
          <com:city>Andover</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01810</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>978-552-0900</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Waleed Hassanein</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue</com:street1>
            <com:street2>6th Floor</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>22500</noOfUnitsSold>
        <aggregateMarketValue>2109150</aggregateMarketValue>
        <noOfUnitsOutstanding>32553650</noOfUnitsOutstanding>
        <approxSaleDate>08/01/2023</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/05/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>22500</amountOfSecuritiesAcquired>
        <paymentDate>04/05/2021</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Waleed Hassanein</name>
          <address>
            <com:street1>Care of Issuer,</com:street1>
            <com:street2>200 Minuteman Road</com:street2>
            <com:city>Andover</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>01810</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>06/01/2023</saleDate>
        <amountOfSecuritiesSold>7500</amountOfSecuritiesSold>
        <grossProceeds>537318.26</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Waleed Hassanein</name>
          <address>
            <com:street1>Care of Transmedics Group Inc</com:street1>
            <com:street2>200 Minuteman Road</com:street2>
            <com:city>Andover</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>01810</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/03/2023</saleDate>
        <amountOfSecuritiesSold>7500</amountOfSecuritiesSold>
        <grossProceeds>618800.36</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/01/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>12/13/2022</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Waleed Hassanein</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4241}]
text: 144
  0001430466
  XXXXXXXX
  LIVE
  0001756262
  Transmedics Group Inc
  001-38891
  200 Minuteman Road
  Andover
  MA
  01810
  978-552-0900
  Waleed Hassanein
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue
  6th Floor
  New York
  NY
  10017
  22500
  2109150
  32553650
  08/01/2023
  Nasdaq
  Common
  04/05/2021
  Option Exercise
  Issuer
  N
  22500
  04/05/2021
  Cash
  N
  Waleed Hassanein
  Care of Issuer,
  200 Minuteman Road
  Andover
  MA
  01810
  Common
  06/01/2023
  7500
  537318.26
  Waleed Hassanein
  Care of Transmedics Group Inc
  200 Minuteman Road
  Andover
  MA
  01810
  Common
  07/03/2023
  7500
  618800.36
  08/01/2023
  12/13/2022
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Waleed Hassanein