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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax High Yield Bond Fund</name>
        <lei>549300XS1BN61UNERX35</lei>
        <title>Impax High Yield Bond Fund, Class Institutional</title>
        <cusip>704223809</cusip>
        <identifiers>
          <isin value="US7042238094"/>
        </identifiers>
        <balance>17355945.06500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>103614992.04000000</valUSD>
        <pctVal>4.383393735272</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Global Environmental Markets Fund</name>
        <lei>5493004WSDJ280SE8M13</lei>
        <title>Impax Global Environmental Markets Fund, Class Institutional</title>
        <cusip>704223775</cusip>
        <identifiers>
          <isin value="US7042237757"/>
        </identifiers>
        <balance>2656702.73600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>64478175.40000000</valUSD>
        <pctVal>2.727725250425</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Ellevate Global Women's Leadership Fund</name>
        <lei>549300J0TL6WZJ1A7C04</lei>
        <title>Impax Ellevate Global Women's Leadership Fund, Class Institutional</title>
        <cusip>70422T109</cusip>
        <identifiers>
          <isin value="US70422T1097"/>
        </identifiers>
        <balance>1795749.67900000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>59942124.29000000</valUSD>
        <pctVal>2.535829293798</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Large Cap Fund</name>
        <lei>549300NZ5W3SP8MQMW39</lei>
        <title>Impax Large Cap Fund, Class Institutional</title>
        <cusip>704223486</cusip>
        <identifiers>
          <isin value="US7042234861"/>
        </identifiers>
        <balance>65872131.43900000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>961733119.01000000</valUSD>
        <pctVal>40.68576222295</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2024-04-30</ncom:dateSigned>
      <ncom:nameOfApplicant>IMPAX FUNDS SERIES TRUST I</ncom:nameOfApplicant>
      <ncom:signature>Alicia DuBois</ncom:signature>
      <ncom:signerName>Alicia DuBois</ncom:signerName>
      <ncom:title>Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
