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        <PersonNm>kenneth W lang</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>peter levitt</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>bridget terry long</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Shelly Nemirovsky</PersonNm>
        <TitleTxt>vice chair/ secretary</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Erica gervais pappendick</PersonNm>
        <TitleTxt>vice chair</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>david randolph peeler</PersonNm>
        <TitleTxt>vice chair/ Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>leslie riedel</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>clay stites</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Janet M Storella</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>David J Thompson</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Frederica C Turner</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>charlotte cramer wagner</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>fan wu</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Bracebridge h young jr</PersonNm>
        <TitleTxt>trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>kATIE gayman</PersonNm>
        <TitleTxt>faculty trustee</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>71738</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>8021</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Brett Fuhrman</PersonNm>
        <TitleTxt>cfo/coo</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>255787</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>14647</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Sherwood C Haskins</PersonNm>
        <TitleTxt>Assistant Head of School</TitleTxt>
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        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>261690</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>31746</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>George L Mitchell JR</PersonNm>
        <TitleTxt>Director of Enrollment Management</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>165802</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>30729</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>katherine small</PersonNm>
        <TitleTxt>Director of development</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>172025</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>24577</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Geoffrey Theobald</PersonNm>
        <TitleTxt>Upper School Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>180994</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>30801</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mary EVERETT Dolbear</PersonNm>
        <TitleTxt>Middle School Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>149821</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>22248</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>shera selzer</PersonNm>
        <TitleTxt>lower school director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>152365</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21181</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Demetri Orlando</PersonNm>
        <TitleTxt>Director of IT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>125690</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>27515</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>2243947</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>529540</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>23</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Consigli Construction</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>72 summer st</AddressLine1Txt>
            <CityNm>milford</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01757</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>contractor &amp; builder</ServicesDesc>
        <CompensationAmt>3426001</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>C &amp; W Facilities Services</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>4002 Solutions Center</AddressLine1Txt>
            <CityNm>chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60677</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Maintenance &amp; Security Staffing</ServicesDesc>
        <CompensationAmt>338527</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Timberline Construction</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>300 pine street</AddressLine1Txt>
            <CityNm>canton</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02021</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>contractor &amp; builder</ServicesDesc>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CHOATE HALL &amp; STEWART</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>Two International Place</AddressLine1Txt>
            <CityNm>boston</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02110</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>legal</ServicesDesc>
        <CompensationAmt>221889</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Turf Prep</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5 Aberjona Drive</AddressLine1Txt>
            <CityNm>woburn</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01801</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Field/Landscape Contractor</ServicesDesc>
        <CompensationAmt>220580</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>16</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>5614593</AllOtherContributionsAmt>
      <NoncashContributionsAmt>183130</NoncashContributionsAmt>
      <TotalContributionsAmt>5614593</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>student tuition</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>41672318</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>41672318</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>summer &amp; other tuition</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1790490</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1790490</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>other revenue</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>778553</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>630863</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>147690</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>44241361</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1204709</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>-58433</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>1263142</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>11686806</SecuritiesAmt>
        <OtherAmt>43000</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>10746090</SecuritiesAmt>
        <OtherAmt>30000</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>940716</SecuritiesAmt>
        <OtherAmt>13000</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>953716</TotalRevenueColumnAmt>
        <ExclusionAmt>953716</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <FundraisingGrossIncomeAmt>44872</FundraisingGrossIncomeAmt>
      <FundraisingDirectExpensesAmt>21458</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>23414</TotalRevenueColumnAmt>
        <ExclusionAmt>23414</ExclusionAmt>
      </NetIncmFromFundraisingEvtGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>52037793</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>44093671</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>89257</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2240272</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>61424</TotalAmt>
        <ProgramServicesAmt>61424</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>7834838</TotalAmt>
        <ProgramServicesAmt>7834838</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1894051</TotalAmt>
        <ManagementAndGeneralAmt>1894051</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
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        <ProgramServicesAmt>18482682</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2432839</ManagementAndGeneralAmt>
        <FundraisingAmt>868565</FundraisingAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>1586024</TotalAmt>
        <ProgramServicesAmt>1617576</ProgramServicesAmt>
        <ManagementAndGeneralAmt>-60146</ManagementAndGeneralAmt>
        <FundraisingAmt>28594</FundraisingAmt>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>3255745</TotalAmt>
        <ProgramServicesAmt>2653650</ProgramServicesAmt>
        <ManagementAndGeneralAmt>555187</ManagementAndGeneralAmt>
        <FundraisingAmt>46908</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>1677941</TotalAmt>
        <ProgramServicesAmt>1330013</ProgramServicesAmt>
        <ManagementAndGeneralAmt>324418</ManagementAndGeneralAmt>
        <FundraisingAmt>23510</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>553444</TotalAmt>
        <ProgramServicesAmt>104912</ProgramServicesAmt>
        <ManagementAndGeneralAmt>448525</ManagementAndGeneralAmt>
        <FundraisingAmt>7</FundraisingAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>101400</TotalAmt>
        <ProgramServicesAmt>10140</ProgramServicesAmt>
        <ManagementAndGeneralAmt>91260</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>262107</TotalAmt>
        <ProgramServicesAmt>107901</ProgramServicesAmt>
        <ManagementAndGeneralAmt>135376</ManagementAndGeneralAmt>
        <FundraisingAmt>18830</FundraisingAmt>
      </OfficeExpensesGrp>
      <TravelGrp>
        <TotalAmt>155845</TotalAmt>
        <ProgramServicesAmt>71729</ProgramServicesAmt>
        <ManagementAndGeneralAmt>57271</ManagementAndGeneralAmt>
        <FundraisingAmt>26845</FundraisingAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>857580</TotalAmt>
        <ProgramServicesAmt>589790</ProgramServicesAmt>
        <ManagementAndGeneralAmt>141136</ManagementAndGeneralAmt>
        <FundraisingAmt>126654</FundraisingAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>445825</TotalAmt>
        <ProgramServicesAmt>445825</ProgramServicesAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>3508765</TotalAmt>
        <ProgramServicesAmt>3333327</ProgramServicesAmt>
        <ManagementAndGeneralAmt>175438</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>259274</TotalAmt>
        <ProgramServicesAmt>214081</ProgramServicesAmt>
        <ManagementAndGeneralAmt>45193</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>consulting &amp; other serv</Desc>
        <TotalAmt>4490196</TotalAmt>
        <ProgramServicesAmt>2308079</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2027899</ManagementAndGeneralAmt>
        <FundraisingAmt>154218</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Supplies</Desc>
        <TotalAmt>1305466</TotalAmt>
        <ProgramServicesAmt>1155580</ProgramServicesAmt>
        <ManagementAndGeneralAmt>98566</ManagementAndGeneralAmt>
        <FundraisingAmt>51320</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>equipment rental/maint.</Desc>
        <TotalAmt>1292584</TotalAmt>
        <ProgramServicesAmt>1248017</ProgramServicesAmt>
        <ManagementAndGeneralAmt>41338</ManagementAndGeneralAmt>
        <FundraisingAmt>3229</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>utilities</Desc>
        <TotalAmt>886627</TotalAmt>
        <ProgramServicesAmt>847127</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39500</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>539217</TotalAmt>
        <ProgramServicesAmt>352447</ProgramServicesAmt>
        <ManagementAndGeneralAmt>181949</ManagementAndGeneralAmt>
        <FundraisingAmt>4821</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>52752439</TotalAmt>
        <ProgramServicesAmt>42769138</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8629800</ManagementAndGeneralAmt>
        <FundraisingAmt>1353501</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>3820225</BOYAmt>
        <EOYAmt>2422586</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>20225890</BOYAmt>
        <EOYAmt>19788250</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
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        <GrantTypeTxt>financial aid</GrantTypeTxt>
        <RecipientCnt>237</RecipientCnt>
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        <ValuationMethodUsedDesc>credit to student account</ValuationMethodUsedDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Scholarships are applied against tuition charged by the organization. Families submit their financial information through a service that calculates the amount that a family can afford to pay for tuition. The School periodically checks tax returns with the IRS to confirm that the data provided is accurate. The School follows the Princeton recommendations and applies the grant to the tuition charged.</ExplanationTxt>
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    </IRS990ScheduleI>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>George L Mitchell JR</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>katherine small</PersonNm>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Geoffrey Theobald</PersonNm>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Mary EVERETT Dolbear</PersonNm>
        <TitleTxt>Middle School Director</TitleTxt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>shera selzer</PersonNm>
        <TitleTxt>lower school director</TitleTxt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>173546</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Demetri Orlando</PersonNm>
        <TitleTxt>Director of IT</TitleTxt>
        <BaseCompensationFilingOrgAmt>125610</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>80</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12922</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>153205</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>the head of school lives in a school owned personal residence. this is for the convenience of the school. use of the house, with an imputed value of $48,000, has been included in nontaxable benefits of the head of school.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4b</FormAndLineReferenceDesc>
        <ExplanationTxt>Rebecca T. Upham and brett j. fuhrman participate in a supplemental, non-qualified retirement plan. amounts earned by the participants during the year totaled $249,431 and $52, respectively.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 7</FormAndLineReferenceDesc>
        <ExplanationTxt>sherwood c. haskins received a bonus of $5,000. mary everett Dolbear received a bonus of $2,821.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
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        <IssuerName>
          <BusinessNameLine1Txt>Mass Development Finance Agency</BusinessNameLine1Txt>
        </IssuerName>
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        <CUSIPNum>000000000</CUSIPNum>
        <BondIssuedDt>2011-12-19</BondIssuedDt>
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        <PurposeDesc>Refund 2006 Bond issue</PurposeDesc>
        <DefeasedInd>0</DefeasedInd>
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        <PoolFinancingInd>0</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
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        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>2625000</RetiredAmt>
        <TotalProceedsAmt>15000000</TotalProceedsAmt>
        <IssuanceCostsFromProceedsAmt>236123</IssuanceCostsFromProceedsAmt>
        <OtherSpentProceedsAmt>14763877</OtherSpentProceedsAmt>
        <SubstantialCompletionYr>2011</SubstantialCompletionYr>
        <CurrentRefundingInd>1</CurrentRefundingInd>
        <AdvanceRefundingInd>0</AdvanceRefundingInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0.00000</PrivateBusUseByOthersPct>
        <PrivateBusConcerningUBIPct>0.00000</PrivateBusConcerningUBIPct>
        <TotalPrivateBusinessUsePct>0.00000</TotalPrivateBusinessUsePct>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>1</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
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        <ExceptionToRebateInd>1</ExceptionToRebateInd>
        <NoRebateDueInd>0</NoRebateDueInd>
        <VariableRateIssueInd>0</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
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        <WrittenProcToMonitorReqsInd>1</WrittenProcToMonitorReqsInd>
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        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, line 1 and Part III, Line 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>BB&amp;N, a coeducational day School in Cambridge, Massachusetts, was established in 1974 by the merger of two independent Schools, the Buckingham School and the Browne &amp; Nichols School, founded respectively in 1889 and 1883. Located on multiple campuses, we work as one School in pursuit of excellence. We celebrate the diversity of our community which enriches our daily experience. At BB&amp;N, we foster intellectual curiosity, critical thinking and a deep concern and respect for others. Our educational program, coordinated from beginners through grade twelve, provides a rigorous core curriculum, taught in flexible and innovative ways. Students acquire the skills and discipline necessary for academic accomplishment and learn to reflect, take risks and to discover. The curriculum is strengthened by our commitment to a comprehensive program in the arts and athletics. In all of our experiences, both those within the School and those which use our urban location, we encourage self-reliance, knowledge of oneself, and a capacity for leadership. The connections between our faculty and students are at the heart of our School. We ask members of our community to be engaged learners, compassionate individuals, and productive citizens who live our School's motto: "Honor, Scholarship, and Kindness."</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The audit committee reviews the full Form 990 and then recommends approval to the full Board of Trustees. The full Board of Trustees has access to the complete Form 990 with the exception of a redacted version of Schedule B. The names of those donors who wish to remain anonymous have been redacted from Schedule B.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>All officers, directors and key employees are required to sign a conflict of interest form annually. The forms are reviewed by the Governance Committee of the Board of Trustees and they determine if a potential conflict exists. If a potential conflict is found to exist, that individual is barred from participating in any deliberations or decisions regarding the conflicting matter. Review of the Conflict of Interest Policy is done during Trustee orientation each year.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>Reasonable Compensation: It is the policy of buckingham browne &amp; nichols school ("the school") to pay no more than reasonable compensation for personal services rendered to the school by officers and employees. The trustees of the school shall not receive compensation for fulfilling their duties as trustees, although trustees may be reimbursed for actual out-of-pocket expenses which they incur in order to fulfill thier duties as trustees. Expenses of spouses will not be reimbursed by the school unless the expenses are necessary to achieve a school purpose. approval of compensation: the board of trustees must approve in advance the amount of all compensation for the head of the school. Before approving the compensation of the head of school, the board shall determine that the total compensation to be provided by the school to the head of school is reasonable in amount in light of the position, responsibility and qualification of the head of school for the position held, including the result of an evaluation of the head of school's prior performance for the School, if applicable. In making the determination, the board shall consider total compensation to include the salary and the value of all benefits provided by the school to the individual in payment for services. at the time of the discussion and decision concerning the head of school's compensation, the head of school should not be present at the meeting. The board shall obtain and consider appropriate data concerning comparable compensation paid to similar head of schools in like circumstances. the board shall set forth the basis for its decisions with respect to compensation in the minutes of the meeting at which the decisions are made, including the conclusions of the evaluation and the basis for determining that the individual's compensation was reasonable in light of the evaluation and the comparability data. Compensation for other key employees is determined by the Head of School.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 18</FormAndLineReferenceDesc>
        <ExplanationTxt>Audited financial statements and the form 990 are available from the Massachusetts attorney general's website at http://www.charities.ago.state.ma.us/. The Form 1023 and 990-T are available upon request. In addition, various organizational documents are available on the Massachusetts Secretary of State website: http://corp.sec.state.ma.us/corp/corpsearch/corpsearchinput.asp.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's governing documents and conflict of interest policy are available upon request. Audited financial statements and the form 990 are available from the Massachusetts attorney general's website and www.guidestar.org.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>