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      <Form990PartVIISectionAGrp>
        <PersonNm>MINDY MUNGER</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JEFF SCHWARTZ</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STACY SCOTT</PersonNm>
        <TitleTxt>TRUSTEE (UNTIL 6/12/25)</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER SEEMAN</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KURT SOMERVILLE</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARK SULLIVAN</PersonNm>
        <TitleTxt>TRUSTEE (AS OF 6/12/25)</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JESSICA BAYLOR</PersonNm>
        <TitleTxt>TRUSTEE (UNTIL 6/12/25)</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PETE HOWE</PersonNm>
        <TitleTxt>TRUSTEE (AS OF 6/12/25)</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN MONTGOMERY</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JANET RAPELYE</PersonNm>
        <TitleTxt>VICE PRESIDENT (AS OF 6/12/25)</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TOM SARGENT</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JILL WALSH</PersonNm>
        <TitleTxt>CLERK/SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN M GINSBERG</PersonNm>
        <TitleTxt>CFOO AND ASST. HEAD OF SCHOOL</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN T GIFFORD</PersonNm>
        <TitleTxt>ASSISTANT HEAD OF SCHOOL</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>GEORGE MALEY</PersonNm>
        <TitleTxt>CHIEF ADVANCEMENT OFFICER</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARK SPENCE</PersonNm>
        <TitleTxt>DEAN OF STUDENT ENGAGEMENT</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALISON EASTERLING</PersonNm>
        <TitleTxt>HEAD OF UPPER SCHOOL</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KATE RAMSDELL</PersonNm>
        <TitleTxt>HEAD OF COLLEGE COUNSELING</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALEX GALLAGHER</PersonNm>
        <TitleTxt>ATHLETIC DIRECTOR</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LISA ROSE</PersonNm>
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          <BusinessName>
            <BusinessNameLine1Txt>SHAWMUT DESIGN AND CONSTRUCTION</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>560 HARRISON AVE SUITE 200</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02118</ZIPCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FLIK COMPASS GROUP USA</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 417632</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>022417632</ZIPCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>WILLIAM RAWN ASSOCIATES</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>27 SCHOOL ST SECOND FLOOR</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02108</ZIPCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>UG2 LLC</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 5972</AddressLine1Txt>
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            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>022055972</ZIPCd>
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        <ServicesDesc>JANITORIAL SERVICES</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CSL CONSULTING</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>152 MIDDLESEX TURNPIKE</AddressLine1Txt>
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            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01803</ZIPCd>
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      <AllOtherContributionsAmt>29285522</AllOtherContributionsAmt>
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      <TotalContributionsAmt>29285522</TotalContributionsAmt>
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        <Desc>TUITION &amp; FEES</Desc>
        <BusinessCd>611600</BusinessCd>
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      <ProgramServiceRevenueGrp>
        <Desc>SUMMER CAMP</Desc>
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      <ProgramServiceRevenueGrp>
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      <OtherRevenueMiscGrp>
        <Desc>CAFE REVENUES</Desc>
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        <ExclusionAmt>90341</ExclusionAmt>
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        <Desc>REWARDS</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>38099</ExclusionAmt>
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        <ExclusionAmt>10177480</ExclusionAmt>
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        <ProgramServicesAmt>8182304</ProgramServicesAmt>
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        <TotalAmt>2178689</TotalAmt>
        <ProgramServicesAmt>534362</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1093534</ManagementAndGeneralAmt>
        <FundraisingAmt>550793</FundraisingAmt>
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        <ProgramServicesAmt>20728522</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1916440</ManagementAndGeneralAmt>
        <FundraisingAmt>1586384</FundraisingAmt>
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        <ProgramServicesAmt>1912947</ProgramServicesAmt>
        <ManagementAndGeneralAmt>29053</ManagementAndGeneralAmt>
        <FundraisingAmt>102042</FundraisingAmt>
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        <ProgramServicesAmt>5044907</ProgramServicesAmt>
        <ManagementAndGeneralAmt>551962</ManagementAndGeneralAmt>
        <FundraisingAmt>596551</FundraisingAmt>
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        <ProgramServicesAmt>1642310</ProgramServicesAmt>
        <ManagementAndGeneralAmt>91961</ManagementAndGeneralAmt>
        <FundraisingAmt>109429</FundraisingAmt>
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      <FeesForServicesLegalGrp>
        <TotalAmt>11699</TotalAmt>
        <ManagementAndGeneralAmt>11699</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
        <TotalAmt>129868</TotalAmt>
        <ManagementAndGeneralAmt>129868</ManagementAndGeneralAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>1048248</TotalAmt>
        <ManagementAndGeneralAmt>1048248</ManagementAndGeneralAmt>
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        <Desc>DEVELOPMENT EXPENSE</Desc>
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        <ExplanationTxt>CAFE REVENUES - 2020 AMOUNT: $ 256. 2021 AMOUNT: $ 73,434. 2022 AMOUNT: $ 91,655. 2023 AMOUNT: $ 88,153. 2024 AMOUNT: $ 90,341. FINANCE CHARGE INCOME - 2020 AMOUNT: $ 778. 2021 AMOUNT: $ 511. 2022 AMOUNT: $ 9,165. 2023 AMOUNT: $ 4,070. 2024 AMOUNT: $ 1,935. OTHER MISCELLANEOUS REVENUE - 2023 AMOUNT: $ 86,809. 2024 AMOUNT: $ 47,961. SERVICES TO THIRD PARTIES - 2020 AMOUNT: $ 150. 2021 AMOUNT: $ 34,778. 2023 AMOUNT: $ 250. SNACK BAR INCOME - 2021 AMOUNT: $ 38,314. 2022 AMOUNT: $ 56,041. 2023 AMOUNT: $ 47,403. 2024 AMOUNT: $ 47,780.</ExplanationTxt>
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          <AddressLine2>RESTRICTED</AddressLine2>
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        <CollectionUsedOtherPurposesInd>X</CollectionUsedOtherPurposesInd>
        <OtherPurposesDesc>EXHIBITION FOR COMM. MEETING</OtherPurposesDesc>
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        <EndYearBalanceAmt>157865548</EndYearBalanceAmt>
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        <MethodValuationCd>F</MethodValuationCd>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL HAS A COLLECTION OF RARE BOOKS, PORTRAITS, SCULPTURES, AND PAINTINGS WHICH WERE ALL DONATED TO THE SCHOOL FOR EXHIBITION AT THE MEETING ROOMS OF THE SCHOOL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EARNINGS ON THE ENDOWMENT FUNDS ARE TO BE USED TO FUND FINANCIAL AID FOR STUDENTS, FACULTY SALARIES, FINANCIAL AID FOR TRIPS AND FACULTY AND STAFF DEVELOPMENT AS WELL AS TO MAINTAIN AND ENHANCE PROGRAMS AT THE SCHOOL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL IS QUALIFIED UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE (IRC) AND IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES EXCEPT FOR NET REVENUE FROM UNRELATED BUSINESS ACTIVITIES. THE SCHOOL FOLLOWS FASB ASC 740, INCOME TAXES, WHICH CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES BY PRESCRIBING THE RECOGNITION THRESHOLD A TAX POSITION IS REQUIRED TO MEET BEFORE BEING RECOGNIZED IN THE FINANCIAL STATEMENTS. THE SCHOOL RECOGNIZES A TAX BENEFIT FROM AN UNCERTAIN TAX POSITION ONLY IF IT IS MORE LIKELY THAN NOT THAT THE TAX POSITION WILL BE SUSTAINED ON EXAMINATION BY THE TAXING AUTHORITIES. MANAGEMENT EVALUATED THE SCHOOL'S TAX POSITIONS AND CONCLUDED THAT THE SCHOOL HAD NO MATERIAL UNCERTAINTIES IN INCOME TAXES AS OF AUGUST 31, 2025 AND 2024. WITH CERTAIN EXCEPTIONS, THE SCHOOL IS ONLY SUBJECT TO INCOME TAX EXAMINATIONS BY THE U.S. FEDERAL, STATE OR LOCAL TAX AUTHORITIES FOR THREE YEARS FROM THE FILING DATE. THE SCHOOL WILL ACCOUNT FOR INTEREST AND PENALTIES RELATED TO UNCERTAIN TAX POSITIONS, IF ANY, AS PART OF TAX EXPENSE.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>CHANGE IN VALUE OF SPLIT INTEREST AGREEMENTS 562,022. FINANCIAL AID NETTED WITH REVENUE ON FINANCIAL STATEMENTS -8,182,304. RECOVERY FOR UNCOLLECTIBLE ACCOUNTS -124,936.</ExplanationTxt>
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        <ExplanationTxt>COSTS OF GOODS SOLD REPORTED ON FORM 990, PART VIII, LINE 10B -52,446. DIRECT RENTAL EXPENSES REPORTED ON FORM 990, PART VIII, LINE 6B -121,595.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>COSTS OF GOODS SOLD REPORTED ON FORM 990, PART VIII, LINE 10B 52,446. DIRECT RENTAL EXPENSES REPORTED ON FORM 990, PART VIII, LINE 6B 121,595.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL AID NETTED WITH REVENUE ON FINANCIAL STATEMENTS 8,182,304.</ExplanationTxt>
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      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>1</MaintainCpyOfAllSolInd>
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        <FormAndLineReferenceDesc>SCHEDULE E, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>IT IS THE POLICY OF NOBLE &amp; GREENOUGH SCHOOL TO ADMIT STUDENTS OF ANY RACE, COLOR, AND NATIONAL OR ETHNIC ORIGIN TO ALL THE RIGHTS, PRIVILEGES, PROGRAMS AND ACTIVITIES GENERALLY ACCORDED OR MADE AVAILABLE TO THE STUDENTS AT THE SCHOOL, AND IT IS THE POLICY OF THE SCHOOL NOT TO DISCRIMINATE ON THE BASIS OF RACE IN ADMINISTRATION OF ITS EDUCATION POLICIES, ADMISSION POLICIES, SCHOLARSHIP AND LOAN PROGRAMS, AND ATHLETIC AND OTHER SCHOOL ADMINISTERED PROGRAM. THE CATALOG OF THE SCHOOL MAKES SUBSTANTIALLY THE SAME STATEMENT. THE SCHOOL ANNUALLY PUBLISHED THE SAME STATEMENT IN A MAJOR BOSTON NEWSPAPER AS A LISTED MEMBER OF THE ASSOCIATION OF INDEPENDENT SCHOOLS OF NEW ENGLAND (AISNE). ADDITIONALLY, NOTICE OF NONDISCRIMINATION POLICY IS ON THE SCHOOL'S WEBSITE.</ExplanationTxt>
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        <GrantTypeTxt>SCHOLARSHIPS</GrantTypeTxt>
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        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NOBLE AND GREENOUGH SCHOOL USES THE PRINCIPLES AND NEEDS ANALYSIS SYSTEM OF THE SCHOOL AND STUDENT SERVICE FOR FINANCIAL AID (SSS) TO DETERMINE THE FINANCIAL ASSISTANCE AWARDS. SSS IS A SERVICE OF THE NATIONAL ASSOCIATION OF INDEPENDENT SCHOOLS. EACH FAMILY SUBMITS A PARENTS' FINANCIAL STATEMENT (PFS) FOR PROCESSING TO SSS. BASED ON THE FINANCIAL INFORMATION PROVIDED BY THE FAMILY, SSS SENDS NOBLE AND GREENOUGH SCHOOL AN ESTIMATED AMOUNT THAT THE FAMILY CAN CONTRIBUTE TO EDUCATIONAL EXPENSES. USING ESTIMATIONS FROM SSS AND INFORMATION IN TAX DOCUMENTS, THE FINANCIAL ASSISTANCE COMMITTEE DETERMINES THE AMOUNT OF ASSISTANCE OFFERED BY NOBLE AND GREENOUGH SCHOOL.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <HousingAllowanceOrResidenceInd>X</HousingAllowanceOrResidenceInd>
      <WrittenPolicyRefTAndEExpnssInd>1</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>1</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
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      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
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        <PersonNm>CATHERINE J HALL</PersonNm>
        <TitleTxt>HEAD OF SCHOOL</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>12469</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>156272</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>232518</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>983650</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>STEPHEN M GINSBERG</PersonNm>
        <TitleTxt>CFOO AND ASST. HEAD OF SCHOOL</TitleTxt>
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        <TotalCompensationFilingOrgAmt>463105</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOHN T GIFFORD</PersonNm>
        <TitleTxt>ASSISTANT HEAD OF SCHOOL</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>136</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>35409</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>33459</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>401909</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GEORGE MALEY</PersonNm>
        <TitleTxt>CHIEF ADVANCEMENT OFFICER</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>10126</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>22307</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>149496</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>368018</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LISA ROSE</PersonNm>
        <TitleTxt>DIRECTOR OF DEVELOPMENT</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1333</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>20049</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>332517</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ALEX GALLAGHER</PersonNm>
        <TitleTxt>ATHLETIC DIRECTOR</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>306683</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ALISON EASTERLING</PersonNm>
        <TitleTxt>HEAD OF UPPER SCHOOL</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>2738</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>37938</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>273555</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KATE RAMSDELL</PersonNm>
        <TitleTxt>HEAD OF COLLEGE COUNSELING</TitleTxt>
        <BaseCompensationFilingOrgAmt>183944</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1034</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>20020</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>35022</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>240020</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARK SPENCE</PersonNm>
        <TitleTxt>DEAN OF STUDENT ENGAGEMENT</TitleTxt>
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        <OtherCompensationFilingOrgAmt>1133</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>SINCE THE SCHOOL IS A BOARDING SCHOOL, SOME OF THE FACULTY ARE REQUIRED TO LIVE ON CAMPUS AS A CONDITION OF EMPLOYMENT AND FOR THE CONVENIENCE OF THE EMPLOYER TO SUPERVISE THE STUDENTS, PARTICIPATE IN ACTIVITIES WITH THE STUDENTS AND/OR TO CONDUCT BUSINESS OUTSIDE THE NORMAL BUSINESS HOURS. THE HEAD OF SCHOOL IS REQUIRED TO LIVE ON CAMPUS AND IS PROVIDED A NONTAXABLE HOUSING BENEFIT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOLLOWING EMPLOYEES PARTICIPATED IN A NON-QUALIFIED RETIREMENT PLAN: - CATHERINE J. HALL THE SCHOOL HAS A DEFERRED COMPENSATION PLAN FOR THE HEAD OF SCHOOL UNDER IRC 457(F). THE PLAN FOR THE HEAD OF SCHOOL WAS EFFECTIVE ON JULY 1, 2017. THE PLAN REQUIRES A MONTHLY CONTRIBUTION BY THE SCHOOL OF A PERCENTAGE OF THE HEAD OF SCHOOL'S GROSS CASH SALARY PAID FOR THE PREVIOUS MONTH. THE EMPLOYER CONTRIBUTION FOR THE YEARS ENDED AUGUST 31, 2025 AND 2024, TOTALED $67,040 AND $60,794, RESPECTIVELY. THE EMPLOYER CONTRIBUTION OF $93,132 TO THE 457(F) PLAN FOR THE CALENDAR YEAR 2024 IS RECORDED ON SCHEDULE J, PART II, COLUMN C.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
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      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>MASS DEVELOPMENT FINANCE AGENCY</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>043431814</BondIssuerEIN>
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        <BondIssuedDt>2015-10-06</BondIssuedDt>
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        <PurposeDesc>SERIES 2011 REFINANCE.</PurposeDesc>
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      <TaxExemptBondsIssuesGrp>
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        <BondIssuedDt>2015-10-06</BondIssuedDt>
        <IssuePriceAmt>13844295</IssuePriceAmt>
        <PurposeDesc>CONSTRUCTION OF NEW LIBRARY BUILDING &amp; RENOVATION OF THE SCIENCE BUILDING.</PurposeDesc>
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      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
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        <OtherSpentProceedsAmt>10554585</OtherSpentProceedsAmt>
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        <RefundingTaxableBondsInd>1</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
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      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <RetiredAmt>3203543</RetiredAmt>
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        <IssuanceCostsFromProceedsAmt>62590</IssuanceCostsFromProceedsAmt>
        <CapitalExpendituresAmt>11349402</CapitalExpendituresAmt>
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        <SubstantialCompletionYr>2018</SubstantialCompletionYr>
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        <PrivateBusConcerningUBIPct>0.00000</PrivateBusConcerningUBIPct>
        <TotalPrivateBusinessUsePct>0.00000</TotalPrivateBusinessUsePct>
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        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>DATE REBATE COMPUTATION PERFORMED</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSUER NAME: MASS DEVELOPMENT FINANCE AGENCY DATE THE REBATE COMPUTATION WAS PERFORMED: 12/09/2021 ISSUER NAME: MASS DEVELOPMENT FINANCE AGENCY DATE THE REBATE COMPUTATION WAS PERFORMED: 12/09/2021</ExplanationTxt>
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    </IRS990ScheduleK>
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      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>65</ContributionCnt>
        <NoncashContributionsRptF990Amt>1863671</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
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      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>1</ReviewProcessUnusualNCGiftsInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>FOR THE DONATED SECURITIES, THE ORGANIZATION IS REPORTING THE NUMBER OF GIFTS RECEIVED.</ExplanationTxt>
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    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF TRUSTEES IS NOTIFIED VIA EMAIL THAT A PUBLIC DISCLOSURE COPY OF THE FORM 990 IS AVAILABLE. TRUSTEES ARE EXPECTED TO REVIEW THE FORM 990 BEFORE IT IS FILED WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL'S CONFLICT OF INTEREST POLICY IS MAILED TO ALL OFFICERS, DIRECTORS AND TRUSTEES, AND REVIEWED ORALLY AT THE FIRST BOARD MEETING OF EACH SCHOOL YEAR. ALL OFFICERS, DIRECTORS, AND TRUSTEES ARE REQUIRED TO SIGN A DOCUMENT INDICATING THEY HAVE READ AND UNDERSTAND THE SCHOOL'S CONFLICT OF INTEREST POLICY. THEY ARE ALSO REQUIRED TO DISCLOSE ANY POTENTIAL CONFLICTS OF INTEREST EITHER BEFORE OR DURING THE FIRST BOARD MEETING OF EACH SCHOOL YEAR. THE COMMITTEE CONSISTING OF TRUSTEES REVIEWS ALL DISCLOSURES. OFFICERS, DIRECTORS, AND TRUSTEES ARE REMINDED THAT THEY HAVE AN OBLIGATION TO UPDATE THEIR DISCLOSURES IF ANY POTENTIAL CONFLICTS OF INTEREST ARISE DURING THE YEAR. TYPICALLY, THEY SELF-REPORT ANY POTENTIAL CONFLICTS THAT ARISE BUT IF ANOTHER BOARD MEMBER BECOMES AWARE OF POTENTIAL CONFLICT, HE OR SHE IS ASKED TO RAISE IT WITH THE OFFICER, DIRECTOR, OR TRUSTEE AND A MEMBER OF THE COMMITTEE ON TRUSTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE IS A COMPENSATION COMMITTEE AS WELL AS AN INDEPENDENT CONSULTANT WHO CAREFULLY REVIEW SURVEYS AND OTHER COMPARATIVE INFORMATION IN DETERMINING COMPENSATION FOR THE HEAD OF SCHOOL. THE COMPENSATION COMMITTEE IS APPOINTED BY THE BOARD OF TRUSTEES. THERE ARE WRITTEN EMPLOYMENT LETTERS FOR ALL FACULTY AND ADMINISTRATIVE POSITIONS AT THE SCHOOL. THESE ARE REVIEWED, UPDATED, DISTRIBUTED AND SIGNED ANNUALLY. SALARIES FOR ALL FACULTY AND ADMINISTRATIVE POSITIONS ARE DETERMINED WITHIN THE BAND OF TYPICAL SALARY INCREASE RATES BASED ON THE HEAD OF SCHOOL'S OBSERVED PERFORMANCE, REGULAR EVALUATION PROCESSES, AND ANY CHANGES IN RESPONSIBILITIES. FOR THE COMPENSATION REVIEW FOR THE OTHER OFFICERS AND KEY EMPLOYEES, THE SCHOOL USES DATA FROM SCHOOL GROUPS AT THE LOCAL AND NATIONAL LEVEL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SCHOOL MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, FINANCIAL STATEMENTS, AND FORM 990 AVAILABLE TO THE GENERAL PUBLIC UPON REQUEST FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN SECTION 6104(D). IF AN INTERESTED PARTY ASKS FOR THESE DOCUMENTS, THE CFOO WILL MAKE A DECISION ABOUT DISTRIBUTION. THE SCHOOL'S FORM 990 WITHOUT SCHEDULE B IS MADE AVAILABLE VIA CANDID AND THE MASSACHUSETTS ATTORNEY GENERAL'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN VALUE OF SPLIT INTEREST AGREEMENTS 562,022. RECOVERY FOR UNCOLLECTIBLE ACCOUNTS -124,936.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 6:</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS IS AN ESTIMATE OF THE CORE GROUP OF PARENTS WHO VOLUNTEER IN THE LIBRARY AND ALSO PARTICIPATE REGULARLY IN THE PARENT ASSOCIATION. THERE ARE PARENT VOLUNTEERS ON AN IRREGULAR BASIS. FOR EXAMPLE, EVERY OTHER YEAR THERE ARE PARENTS WHO VOLUNTEER A COUPLE HOURS AT THE SCHOOL'S YARD SALE. THIS ESTIMATE ALSO INCLUDES THE NUMBER OF BOARD MEMBERS WHO VOLUNTEER THEIR TIME ON THE SCHOOL'S BOARD WITHOUT COMPENSATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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