<SEC-DOCUMENT>0000905729-25-000039.txt : 20250214
<SEC-HEADER>0000905729-25-000039.hdr.sgml : 20250214
<ACCEPTANCE-DATETIME>20250214114721
ACCESSION NUMBER:		0000905729-25-000039
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250214
DATE AS OF CHANGE:		20250214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AFFILIATED MANAGERS GROUP, INC.
		CENTRAL INDEX KEY:			0001004434
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				043218510
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-52331
		FILM NUMBER:		25625247

	BUSINESS ADDRESS:	
		STREET 1:		777 SOUTH FLAGLER DRIVE
		STREET 2:		SUITE 1401 EAST TOWER
		CITY:			WEST PALM BEACH
		STATE:			FL
		ZIP:			33401
		BUSINESS PHONE:		(800) 345-1100

	MAIL ADDRESS:	
		STREET 1:		777 SOUTH FLAGLER DRIVE
		STREET 2:		SUITE 1401 EAST TOWER
		CITY:			WEST PALM BEACH
		STATE:			FL
		ZIP:			33401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AFFILIATED MANAGERS GROUP INC
		DATE OF NAME CHANGE:	19970822

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Clarkston Capital Partners, LLC
		CENTRAL INDEX KEY:			0001562855
		ORGANIZATION NAME:           	
		IRS NUMBER:				830473650
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		303 E. THIRD STREET
		STREET 2:		SUITE 110
		CITY:			ROCHESTER
		STATE:			MI
		ZIP:			48307
		BUSINESS PHONE:		248-723-8000

	MAIL ADDRESS:	
		STREET 1:		303 E. THIRD STREET
		STREET 2:		SUITE 110
		CITY:			ROCHESTER
		STATE:			MI
		ZIP:			48307

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Clarkston Capital Partners LLC
		DATE OF NAME CHANGE:	20121126
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: Clarkston Capital Partners, LLC -->
          <cik>0001562855</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>2</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001004434</issuerCik>
        <issuerName>Affiliated Managers Group, Inc.</issuerName>
        <issuerCusip>008252108</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>91 West Long Lake Road</com:street1>
          <com:city>Bloomfield Hills</com:city>
          <com:stateOrCountry>MI</com:stateOrCountry>
          <com:zipCode>48304</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Clarkston Capital Partners, LLC</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>MI</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Clarkston Companies, Inc.</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>MI</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Modell Capital LLC</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>MI</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>OO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Jeffrey A. Hakala</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Gerald W. Hakala</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Jeremy J. Modell</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>718179.00</soleVotingPower>
        <sharedVotingPower>777950.00</sharedVotingPower>
        <soleDispositivePower>718179.00</soleDispositivePower>
        <sharedDispositivePower>854010.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1572189.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.20</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Affiliated Managers Group, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>777 South Flagler Drive, West Palm Beach, FL 33401</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>This Schedule 13G/A is filed jointly pursuant to that certain Joint Filing Agreement filed herewith as Exhibit 99.1 by:  (1) Clarkston Capital Partners, LLC ("CCP")  (2) Clarkston Companies, Inc. ("CC")  (3) Modell Capital LLC ("MC")  (4) Jeffrey A. Hakala  (5) Gerald W. Hakala  (6) Jeremy J. Modell</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>303 E Third St., Suite 110, Rochester, MI 48307</principalBusinessOfficeOrResidenceAddress>
        <citizenship>CCP and MC are Michigan limited liability companies.  CC is a Michigan corporation.  Jeffrey A. Hakala, Gerald W. Hakala, and Jeremy J. Modell (the "Individual Reporting Persons") are citizens of the United States of America.</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
        <typeOfPersonFiling>HC</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

Based upon 30,225,132 shares of Common Stock, par value $0.01 per share ("Common Stock"), of Affiliated Managers Group, Inc. (the "Issuer") outstanding as of November 5, 2024, as reported in the Issuer's quarterly report on Form 10-Q filed with the Securities and Exchange Commission on November 7, 2024.</amountBeneficiallyOwned>
        <classPercent>5.20%</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>718,179</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>777,950</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>718,179</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>854,010</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>The shares reported in this statement have been purchased by CCP on behalf of CCP's discretionary clients or by a control person of CCP in an account over which such control person has beneficial ownership.  CCP's clients have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of such securities held in their accounts, subject to CCP's general authority to invest and reinvest the assets in each account under its management.</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
      </item6>
      <item7>
        <notApplicableFlag>N</notApplicableFlag>
        <subsidiaryIdentificationAndClassification>With respect to CC, MC and the Individual Reporting Persons, see Item 4.</subsidiaryIdentificationAndClassification>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <exhibitInfo>https://www.sec.gov/Archives/edgar/data/1004434/000090572923000047/affiliatedex991_021423.htm</exhibitInfo>
    <signatureInformation>
      <reportingPersonName>Clarkston Capital Partners, LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Jeffrey A. Hakala</signature>
        <title>Chief Executive Officer</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Clarkston Companies, Inc.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Jeffrey A. Hakala</signature>
        <title>Chief Executive Officer and President</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Modell Capital LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Jeremy J. Modell</signature>
        <title>Member</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Jeffrey A. Hakala</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Jeffrey A. Hakala</signature>
        <title>Jeffrey A. Hakala</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Gerald W. Hakala</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Gerald W. Hakala</signature>
        <title>Gerald W. Hakala</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Jeremy J. Modell</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Jeremy J. Modell</signature>
        <title>Jeremy J. Modell</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
