<?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>0001318349</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000913760</issuerCik>
      <issuerName>StoneX Group inc</issuerName>
      <secFileNumber>001-36045</secFileNumber>
      <issuerAddress>
        <com:street1>230 Park Avenue</com:street1>
        <com:street2>10th Floor</com:street2>
        <com:city>New York</com:city>
        <com:stateOrCountry>NY</com:stateOrCountry>
        <com:zipCode>10169</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>2124853500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>John Fowler</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>2 Pickwick Plaza</com:street1>
          <com:street2>4th Floor</com:street2>
          <com:city>Greenwich</com:city>
          <com:stateOrCountry>CT</com:stateOrCountry>
          <com:zipCode>06830</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>1125</noOfUnitsSold>
      <aggregateMarketValue>102600</aggregateMarketValue>
      <noOfUnitsOutstanding>48916600</noOfUnitsOutstanding>
      <approxSaleDate>11/03/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COmmon</securitiesClassTitle>
      <acquiredDate>02/13/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Bonus</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Stonex</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1125</amountOfSecuritiesAcquired>
      <paymentDate>02/13/2019</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>11/03/2025</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>11/22/2024</planAdoptionDate>
      </planAdoptionDates>
      <signature>John M. Fowler</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
