content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001762247</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001434265</issuerCik>
        <issuerName>GENMAB A/S</issuerName>
        <secFileNumber>001-38976</secFileNumber>
        <issuerAddress>
          <com:street1>TOLDBODGADE 33</com:street1>
          <com:city>1253 COPENHAGEN K</com:city>
          <com:stateOrCountry>G7</com:stateOrCountry>
          <com:zipCode>00000</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9999999999</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Klimovsky Judith V</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>1200</noOfUnitsSold>
        <aggregateMarketValue>330000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>66074535</noOfUnitsOutstanding>
        <approxSaleDate>03/01/2024</approxSaleDate>
        <securitiesExchangeName>OTHER</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/02/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1200</amountOfSecuritiesAcquired>
        <paymentDate>01/02/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>03/01/2024</noticeDate>
        <signature>/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Klimovsky Judith V</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2816}]
text: 144
  0001762247
  XXXXXXXX
  LIVE
  0001434265
  GENMAB A/S
  001-38976
  TOLDBODGADE 33
  1253 COPENHAGEN K
  G7
  00000
  9999999999
  Klimovsky Judith V
  Officer
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  1200
  330000.00
  66074535
  03/01/2024
  OTHER
  Common
  01/02/2023
  Stock Award
  Issuer
  N
  1200
  01/02/2023
  Compensation
  Y
  03/01/2024
  /s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Klimovsky Judith V