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>0001432993</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001004434</issuerCik>
        <issuerName>AFFILIATED MANAGERS GROUP, INC.</issuerName>
        <secFileNumber>001-13459</secFileNumber>
        <issuerAddress>
          <com:street1>777 SOUTH FLAGLER DRIVE</com:street1>
          <com:street2>SUITE 1401 EAST TOWER</com:street2>
          <com:city>WEST PALM BEACH</com:city>
          <com:stateOrCountry>FL</com:stateOrCountry>
          <com:zipCode>33401</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>(800) 345-1100</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Horgen Jay C.</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>18300</noOfUnitsSold>
        <aggregateMarketValue>3164985.00</aggregateMarketValue>
        <noOfUnitsOutstanding>29813967</noOfUnitsOutstanding>
        <approxSaleDate>08/19/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/16/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>18300</amountOfSecuritiesAcquired>
        <paymentDate>08/16/2021</paymentDate>
        <natureOfPayment>compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>shares are being sold from JAY CURTIS HORGEN KATHERINE BATTLE HORGEN TTEE THE JAY CURTIS HORGEN 2015 TRUS U/A 10/27/15</remarks>
      <noticeSignature>
        <noticeDate>08/19/2024</noticeDate>
        <signature>/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jay Curtis Horgen</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001432993
  XXXXXXXX
  LIVE
  0001004434
  AFFILIATED MANAGERS GROUP, INC.
  001-13459
  777 SOUTH FLAGLER DRIVE
  SUITE 1401 EAST TOWER
  WEST PALM BEACH
  FL
  33401
  (800) 345-1100
  Horgen Jay C.
  Officer
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  18300
  3164985.00
  29813967
  08/19/2024
  NYSE
  Common
  08/16/2021
  Stock Award
  Issuer
  N
  18300
  08/16/2021
  compensation
  Y
  shares are being sold from JAY CURTIS HORGEN KATHERINE BATTLE HORGEN TTEE THE JAY CURTIS HORGEN 2015 TRUS U/A 10/27/15
  08/19/2024
  /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jay Curtis Horgen