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      <Form990PartVIISectionAGrp>
        <PersonNm>KATHLEEN HO</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STEVE KAPLAN</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>BECKY KIDDER SMITH</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DIANA KNIGHTLY</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CAROLINE KUHLMAN</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>GRETCHEN LARKIN</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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        <PersonNm>MARY LOEKEN PHD</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTINE MARAGANORE</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LIZ MORNINGSTAR</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL RODRIGUEZ</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KATHERINE SCHANTZ</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JESSICA TURCO</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JUDI SELDIN</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RENEE GREENFIELD</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DEBORAH MCCARTHY</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER BROCK</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STACEY DANIELS</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>GRETCHEN MCAULIFFE</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALLISON WEST</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARGARET KUZMICZ</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STEVE WILKINS</PersonNm>
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          <BusinessName>
            <BusinessNameLine1Txt>ROOTSTOCK PHILANTHROPY LLC</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>NEOMIND LABS</BusinessNameLine1Txt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FINALSITE</BusinessNameLine1Txt>
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          <USAddress>
            <AddressLine1Txt>655 WINDING BROOK DRIVE</AddressLine1Txt>
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        <Desc>TUITON AND FEES</Desc>
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      <ProgramServiceRevenueGrp>
        <Desc>SUMMER PROGRAMS</Desc>
        <BusinessCd>611600</BusinessCd>
        <TotalRevenueColumnAmt>1286500</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1286500</RelatedOrExemptFuncIncomeAmt>
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        <Desc>OTHER SCHOOL PROGRAMS</Desc>
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        <RelatedOrExemptFuncIncomeAmt>893444</RelatedOrExemptFuncIncomeAmt>
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        <TotalRevenueColumnAmt>1226622</TotalRevenueColumnAmt>
        <ExclusionAmt>1226622</ExclusionAmt>
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        <SecuritiesAmt>14929</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>14929</TotalRevenueColumnAmt>
        <ExclusionAmt>14929</ExclusionAmt>
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        <Desc>OTHER INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>177461</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>1241551</ExclusionAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>4259588</ProgramServicesAmt>
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        <ProgramServicesAmt>288885</ProgramServicesAmt>
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        <ProgramServicesAmt>567209</ProgramServicesAmt>
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        <ProgramServicesAmt>2100363</ProgramServicesAmt>
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        <FundraisingAmt>98814</FundraisingAmt>
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        <ProgramServicesAmt>1024701</ProgramServicesAmt>
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        <FundraisingAmt>42238</FundraisingAmt>
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        <ProgramServicesAmt>40639</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5341</ManagementAndGeneralAmt>
        <FundraisingAmt>1335</FundraisingAmt>
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        <ManagementAndGeneralAmt>99398</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>14405</ManagementAndGeneralAmt>
        <FundraisingAmt>745</FundraisingAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>143345</ProgramServicesAmt>
        <ManagementAndGeneralAmt>81446</ManagementAndGeneralAmt>
        <FundraisingAmt>180600</FundraisingAmt>
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        <Desc>OTHER EXPENSES</Desc>
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        <ManagementAndGeneralAmt>8108</ManagementAndGeneralAmt>
        <FundraisingAmt>6436</FundraisingAmt>
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        <ProgramServicesAmt>27587844</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3638048</ManagementAndGeneralAmt>
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        <EOYAmt>2922805</EOYAmt>
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        <EOYAmt>504871</EOYAmt>
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        <EOYAmt>70510</EOYAmt>
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        <EOYAmt>570569</EOYAmt>
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        <EOYAmt>29744506</EOYAmt>
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        <EOYAmt>53552834</EOYAmt>
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        <EOYAmt>91739760</EOYAmt>
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        <EOYAmt>606712</EOYAmt>
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        <EOYAmt>12604036</EOYAmt>
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        <EOYAmt>282577</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>13493325</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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        <BOYAmt>47401406</BOYAmt>
        <EOYAmt>51550274</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>23632327</BOYAmt>
        <EOYAmt>26696161</EOYAmt>
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        <BOYAmt>71033733</BOYAmt>
        <EOYAmt>78246435</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>91739760</EOYAmt>
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      <NetUnrlzdGainsLossesInvstAmt>5309665</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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        <FormAndLineReferenceDesc>PART II - STEPHEN WILKINS FORMER HEAD OF SCHOOL</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS PROCESS HAS NOT CHANGED FROM LAST FISCAL YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NEUROLUTION HOSTING LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>25 BAKER BRIDGE ROAD</AddressLine1Txt>
          <CityNm>LINCOLN</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01773</ZIPCd>
        </USAddress>
        <EIN>371962191</EIN>
        <PrimaryActivitiesTxt>TO IMPROVE ACADEMIC AND COGNITIVE OUTCOMES FOR STUDENTS</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <TotalIncomeAmt>248250</TotalIncomeAmt>
        <EndOfYearAssetsAmt>248250</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>THE CARROLL SCHOOL</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
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</Return>