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      <registrantType>RMIC</registrantType>
      <liveTestFlag>LIVE</liveTestFlag>
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      <periodOfReport>06/30/2025</periodOfReport>
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      <reportCalendarYear>2025</reportCalendarYear>
      <reportingPerson>
        <name>HARBOR FUNDS</name>
        <phoneNumber>312-443-4400</phoneNumber>
        <address>
          <com:street1>111 South Wacker Drive</com:street1>
          <com:street2>34th Floor</com:street2>
          <com:city>Chicago</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60606</com:zipCode>
        </address>
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      <agentForService>
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          <com:street1>111 South Wacker Drive</com:street1>
          <com:street2>34th Floor</com:street2>
          <com:city>Chicago</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60606</com:zipCode>
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      <txSignature>Diana Podgorny</txSignature>
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      <txTitle>General Counsel and Secretary</txTitle>
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