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  <headerData>
    <submissionType>N-PX</submissionType>
    <filerInfo>
      <registrantType>IM</registrantType>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0000912938</cik>
          <ccc>XXXXXXXX</ccc>
          <!--Field: Pseudo-Tag; ID: Name; Data:-->
        </issuerCredentials>
      </filer>
      <flags>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <periodOfReport>06/30/2026</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <yearOrQuarter>YEAR</yearOrQuarter>
      <reportCalendarYear>2026</reportCalendarYear>
      <reportingPerson>
        <name>MASSACHUSETTS FINANCIAL SERVICES CO /MA/</name>
        <phoneNumber>617-954-5000</phoneNumber>
        <address>
          <com:street1>111 HUNTINGTON AVENUE</com:street1>
          <com:street2>24TH FLOOR</com:street2>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02199</com:zipCode>
        </address>
      </reportingPerson>
      <agentForService>
        <name>Christopher R. Bohane, Massachusetts Financial Services Company</name>
        <address>
          <com:street1>111 Huntington Ave</com:street1>
          <com:street2>21st Floor</com:street2>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02199</com:zipCode>
        </address>
      </agentForService>
      <reportInfo>
        <reportType>INSTITUTIONAL MANAGER VOTING REPORT</reportType>
        <confidentialTreatment>N</confidentialTreatment>
      </reportInfo>
      <fileNumber>028-04968</fileNumber>
      <reportingCrdNumber>000110045</reportingCrdNumber>
      <reportingSecFileNumber>801-17352</reportingSecFileNumber>
      <leiNumber>1G3OSH3GLGJ7X1JC5I61</leiNumber>
      <explanatoryInformation>
        <explanatoryChoice>Y</explanatoryChoice>
        <explanatoryNotes>Column 10 for certain meetings (including the May 7, 2026 meeting of Advanced Energy Industries, Inc., the May 13, 2026 of the Dutch Bros Inc., the June 10, 2026 meeting of Columbia Sportswear Company, and the June 23, 2026 of Self Storage REIT, Inc.) reflect zero shares voted and column 12 indicates that a vote was not submitted. In these situations, the reporting Institutional Managers received a ballot reflecting 0.000000 shares and therefore did not submit a vote for that ballot. For the Pacira Biosciences, Inc. meeting on June 9, 2026, the reporting Institutional Managers received a management ballot and a ballot from another shareholder. Both ballots are included within this report. For the ballot that the reporting Institutional Managers did not vote (i.e., the shareholder proponent ballot), columns 10 and 12 reflect zero shares voted.</explanatoryNotes>
      </explanatoryInformation>
    </coverPage>
    <summaryPage>
      <otherIncludedManagersCount>8</otherIncludedManagersCount>
      <otherManagers2>
        <investmentManagers>
          <serialNo>1</serialNo>
          <form13FFileNumber>028-13175</form13FFileNumber>
          <leiNumber>5493001WYM36HJUX2I21</leiNumber>
          <name>MFS Heritage Trust CO</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>2</serialNo>
          <form13FFileNumber>028-13178</form13FFileNumber>
          <leiNumber>DSXF0WRHCYLQSOBXNI70</leiNumber>
          <name>MFS International (U.K.) Limited</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>3</serialNo>
          <form13FFileNumber>028-16137</form13FFileNumber>
          <leiNumber>254900VVQM2BM52KK257</leiNumber>
          <name>MFS International Singapore Pte. Ltd.</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>4</serialNo>
          <form13FFileNumber>028-06597</form13FFileNumber>
          <leiNumber>5493001L2QOJLGOKGJ22</leiNumber>
          <name>MFS Investment Management Canada Limited</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>5</serialNo>
          <form13FFileNumber>028-13180</form13FFileNumber>
          <leiNumber>549300YXNO4Z5XQ0O194</leiNumber>
          <name>MFS Investment Management Company (Lux) S.a.r.l.</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>6</serialNo>
          <form13FFileNumber>028-13173</form13FFileNumber>
          <crdNumber>000107144</crdNumber>
          <secFileNumber>801-46433</secFileNumber>
          <leiNumber>5K3S2DVP1EIBL90MSI54</leiNumber>
          <name>MFS Institutional Advisors, Inc.</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>7</serialNo>
          <form13FFileNumber>028-13177</form13FFileNumber>
          <name>MFS Investment Management K.K.</name>
        </investmentManagers>
        <investmentManagers>
          <serialNo>8</serialNo>
          <form13FFileNumber>028-18051</form13FFileNumber>
          <leiNumber>549300F87XVVPRP7IN44</leiNumber>
          <name>MFS International Australia Pty Ltd</name>
        </investmentManagers>
      </otherManagers2>
    </summaryPage>
    <signaturePage>
      <reportingPerson>MASSACHUSETTS FINANCIAL SERVICES CO /MA/</reportingPerson>
      <txSignature>Susan Pereira</txSignature>
      <txPrintedSignature>Susan Pereira</txPrintedSignature>
      <txTitle>Authorized Person</txTitle>
      <txAsOfDate>08/26/2026</txAsOfDate>
    </signaturePage>
  </formData>
</edgarSubmission>
