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>0001379623</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001997464</issuerCik>
        <issuerName>Marex Group plc</issuerName>
        <secFileNumber>001-42020</secFileNumber>
        <issuerAddress>
          <com:street1>155 Bishopsgate London</com:street1>
          <com:city>UNITED KINGDOM EC2M 3TQ</com:city>
          <com:stateOrCountry>X0</com:stateOrCountry>
          <com:zipCode>na</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>442076556000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Ian Lowitt</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>CEO</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</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>210000</noOfUnitsSold>
        <aggregateMarketValue>8219400</aggregateMarketValue>
        <noOfUnitsOutstanding>71231706</noOfUnitsOutstanding>
        <approxSaleDate>06/23/2025</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/24/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>24631</amountOfSecuritiesAcquired>
        <paymentDate>05/24/2024</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/24/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4612</amountOfSecuritiesAcquired>
        <paymentDate>05/24/2024</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/16/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>75635</amountOfSecuritiesAcquired>
        <paymentDate>05/16/2025</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/10/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4612</amountOfSecuritiesAcquired>
        <paymentDate>03/10/2025</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/10/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>100510</amountOfSecuritiesAcquired>
        <paymentDate>03/10/2025</paymentDate>
        <natureOfPayment>NA</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>The sales of shares set forth herein are made in connection with a selling plan entered into on 14 March 2025 that is intended to comply with Rule 10b5-1</remarks>
      <noticeSignature>
        <noticeDate>06/23/2025</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>03/14/2025</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Ian Lowitt</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 5192}]
text: 144
  0001379623
  XXXXXXXX
  LIVE
  0001997464
  Marex Group plc
  001-42020
  155 Bishopsgate London
  UNITED KINGDOM EC2M 3TQ
  X0
  na
  442076556000
  Ian Lowitt
  CEO
  Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue
  6th Floor
  New York
  NY
  10017
  210000
  8219400
  71231706
  06/23/2025
  Nasdaq
  Common
  05/24/2024
  Compensation
  Issuer
  N
  24631
  05/24/2024
  NA
  Common
  05/24/2024
  Compensation
  Issuer
  N
  4612
  05/24/2024
  NA
  Common
  05/16/2025
  Compensation
  Issuer
  N
  75635
  05/16/2025
  NA
  Common
  03/10/2025
  Compensation
  Issuer
  N
  4612
  03/10/2025
  NA
  Common
  03/10/2025
  Compensation
  Issuer
  N
  100510
  03/10/2025
  NA
  Y
  The sales of shares set forth herein are made in connection with a selling plan entered into on 14 March 2025 that is intended to comply with Rule 10b5-1
  06/23/2025
  03/14/2025
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Ian Lowitt