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        <PersonNm>STACIE SAWCHAK AARESTAD</PersonNm>
        <TitleTxt>DIRECTOR/ CLERK</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOAN G ABRAMS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BILL CIAMBRONE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RYAN COHLHEPP</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RENEE CONNOLLY</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEBBIE DURSO BUMPUS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KRISTIN GOPPEL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN HEFFERNAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MELISSA MONAHAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTOPHER MURPHY</PersonNm>
        <TitleTxt>DIRECTOR/ CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SRIDARAN NATESAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARY ELLEN WILTROUT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT GOTTLIEB</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>426999</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>907813</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>410388</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>3</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SUFFOLK CONSTRUCTION COMPANY</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>25 MOULTON STREET</AddressLine1Txt>
            <CityNm>CAMBRIDGE</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02138</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION AND GENERAL CONTRACTOR</ServicesDesc>
        <CompensationAmt>1651451</CompensationAmt>
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      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <FundraisingAmt>194435</FundraisingAmt>
      <GovernmentGrantsAmt>117600</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>1294098</AllOtherContributionsAmt>
      <TotalContributionsAmt>1606133</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ATTENDANCE FEES</Desc>
        <BusinessCd>813219</BusinessCd>
        <TotalRevenueColumnAmt>345238</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>345238</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>345238</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>18081</TotalRevenueColumnAmt>
        <ExclusionAmt>18081</ExclusionAmt>
      </InvestmentIncomeGrp>
      <FundraisingGrossIncomeAmt>0</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>194435</ContriRptFundraisingEventAmt>
      <FundraisingDirectExpensesAmt>60137</FundraisingDirectExpensesAmt>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>-60137</TotalRevenueColumnAmt>
        <ExclusionAmt>-60137</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>3020</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3020</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>3020</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1912335</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>348258</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>-42056</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>28900</TotalAmt>
        <ProgramServicesAmt>28900</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>377231</TotalAmt>
        <ProgramServicesAmt>220549</ProgramServicesAmt>
        <ManagementAndGeneralAmt>134930</ManagementAndGeneralAmt>
        <FundraisingAmt>21752</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>573668</TotalAmt>
        <ProgramServicesAmt>395682</ProgramServicesAmt>
        <ManagementAndGeneralAmt>114104</ManagementAndGeneralAmt>
        <FundraisingAmt>63882</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>16303</TotalAmt>
        <ProgramServicesAmt>7969</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8310</ManagementAndGeneralAmt>
        <FundraisingAmt>24</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>57500</TotalAmt>
        <ProgramServicesAmt>24613</ProgramServicesAmt>
        <ManagementAndGeneralAmt>32021</ManagementAndGeneralAmt>
        <FundraisingAmt>866</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>74332</TotalAmt>
        <ProgramServicesAmt>50669</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17476</ManagementAndGeneralAmt>
        <FundraisingAmt>6187</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>36130</TotalAmt>
        <ManagementAndGeneralAmt>36130</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>1794980</TotalAmt>
        <ProgramServicesAmt>1776519</ProgramServicesAmt>
        <ManagementAndGeneralAmt>18086</ManagementAndGeneralAmt>
        <FundraisingAmt>375</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>1687</TotalAmt>
        <ProgramServicesAmt>177</ProgramServicesAmt>
        <FundraisingAmt>1510</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>27468</TotalAmt>
        <ProgramServicesAmt>18055</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4652</ManagementAndGeneralAmt>
        <FundraisingAmt>4761</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>93480</TotalAmt>
        <ProgramServicesAmt>62096</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17603</ManagementAndGeneralAmt>
        <FundraisingAmt>13781</FundraisingAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>3430</TotalAmt>
        <ProgramServicesAmt>2130</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1255</ManagementAndGeneralAmt>
        <FundraisingAmt>45</FundraisingAmt>
      </TravelGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>2232</TotalAmt>
        <ManagementAndGeneralAmt>2232</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>1611</TotalAmt>
        <ManagementAndGeneralAmt>1611</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>REIMBURSEMENTS-RELATED</Desc>
        <TotalAmt>139779</TotalAmt>
        <ProgramServicesAmt>92589</ProgramServicesAmt>
        <ManagementAndGeneralAmt>33234</ManagementAndGeneralAmt>
        <FundraisingAmt>13956</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISCELLANEOUS</Desc>
        <TotalAmt>14370</TotalAmt>
        <ProgramServicesAmt>1525</ProgramServicesAmt>
        <ManagementAndGeneralAmt>12810</ManagementAndGeneralAmt>
        <FundraisingAmt>35</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES AND SUBSCRIPTIONS</Desc>
        <TotalAmt>10434</TotalAmt>
        <ProgramServicesAmt>8597</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1837</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>EVENT SUPPLIES</Desc>
        <TotalAmt>7229</TotalAmt>
        <ProgramServicesAmt>7128</ProgramServicesAmt>
        <ManagementAndGeneralAmt>101</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>584</TotalAmt>
        <ManagementAndGeneralAmt>584</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>3261348</TotalAmt>
        <ProgramServicesAmt>2697198</ProgramServicesAmt>
        <ManagementAndGeneralAmt>436976</ManagementAndGeneralAmt>
        <FundraisingAmt>127174</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>129178</BOYAmt>
        <EOYAmt>10556</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>3970961</BOYAmt>
        <EOYAmt>2684767</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>98219</BOYAmt>
        <EOYAmt>136250</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>8094</BOYAmt>
        <EOYAmt>5000</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>107900</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>78189</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>22500</BOYAmt>
        <EOYAmt>29711</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <TotalAssetsGrp>
        <BOYAmt>4228952</BOYAmt>
        <EOYAmt>2866284</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>1007298</BOYAmt>
        <EOYAmt>993221</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>9613</BOYAmt>
        <EOYAmt>10035</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>1016911</BOYAmt>
        <EOYAmt>1003256</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>1713037</BOYAmt>
        <EOYAmt>1613610</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>1499004</BOYAmt>
        <EOYAmt>249418</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>3212041</BOYAmt>
        <EOYAmt>1863028</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>4228952</BOYAmt>
        <EOYAmt>2866284</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-1349013</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>950797</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1159786</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1878076</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3947738</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1606133</CurrentTaxYearAmt>
        <TotalAmt>9542530</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>950797</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1159786</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1878076</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3947738</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1606133</CurrentTaxYearAmt>
        <TotalAmt>9542530</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>555952</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>8986578</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>11312</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4634</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20107</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>45404</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>18081</CurrentTaxYearAmt>
        <TotalAmt>99538</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>24864</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9983</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>8155</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3020</CurrentTaxYearAmt>
        <TotalAmt>46022</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>9688090</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>1287847</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.92760</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.90420</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MISCELLANEOUS REVENUE - 2017 AMOUNT: $ 24,864. 2018 AMOUNT: $ 9,983. 2019 AMOUNT: $ 8,155. 2020 AMOUNT: $ 3,020.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>107900</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>78189</DepreciationAmt>
        <BookValueAmt>29711</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>29711</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1912335</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1912335</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1912335</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>3261348</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>3261348</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>3261348</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH ASC TOPIC, INCOME TAXES. THIS STANDARD CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS AND PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR THE FINANCIAL STATEMENTS REGARDING A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. THE FOUNDATION HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS WHICH QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS AT DECEMBER 31, 2020. THE FOUNDATION'S INFORMATION RETURNS ARE SUBJECT TO EXAMINATION BY THE FEDERAL AND STATE JURISDICTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>VIRTUAL EVENT</Event1Nm>
        <GrossReceiptsEvent1Amt>81404</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>81404</CharitableContriEvent1Amt>
        <OtherDirectExpensesEvent1Amt>6891</OtherDirectExpensesEvent1Amt>
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          <BusinessNameLine1Txt>FRONTEIR HIGH SCHOOL</BusinessNameLine1Txt>
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          <AddressLine1Txt>113 N MAIN STREET</AddressLine1Txt>
          <CityNm>SOUTH DEERFIELD</CityNm>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>SCHOOL GRANTS ARE AWARDED BASED ON EVALUATION OF APPLICATIONS. GRANTS ARE MONITORED BY STAFF TO DETERMINE HOW THE FUNDS ARE USED AND STAFF ALSO ASSESS THE NUMBER OF TEACHERS TRAINED AND THE NUMBER OF CLASSES REACHED. IN ADDITION, STAFF EVALUATES AND APPROVES ORDERS FOR MATERIALS AND SUPPLIES BEFORE BEING SENT TO VENDORS FOR PROCESSING.</ExplanationTxt>
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        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>1245251</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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        <PersonNm>SONDRA SCHWARTZ</PersonNm>
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        <PersonNm>MICHELLE MISCHKE</PersonNm>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>MASSACHUSETTS BIOTECHNOLOGY COUNCIL, INC. (SEE SCHEDULE R), MAINTAINS A SENIOR EXECUTIVE RETIREMENT PROGRAM (SERP) TO PROVIDE SUPPLEMENTAL RETIREMENT BENEFITS TO ITS PRESIDENT/CEO, ROBERT COUGHLIN, WHO IS A BOARD MEMBER OF THE FOUNDATION. THERE WERE NO DISTRIBUTIONS THROUGH THIS PLAN IN 2020.</ExplanationTxt>
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        <ExplanationTxt>A COPY OF FORM 990 WAS EXAMINED AND APPROVED BY THE FINANCE COMMITTEE OF THE BOARD OF DIRECTORS AND WAS MADE AVAILABLE TO THE FULL BOARD AT A BOARD MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>MONITORED THROUGH BOARD VOTES AND GENERAL OVERSIGHT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS REVIEWS THE EXECUTIVE DIRECTOR'S PERFORMANCE ON AN ANNUAL BASIS AND DETERMINES SALARY BASED ON PERFORMANCE. THE EXECUTIVE DIRECTOR REVIEWS ALL OTHER STAFF'S PERFORMANCE AND DETERMINES SALARY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL DOCUMENTS ARE OF PUBLIC RECORD AND ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTING: PROGRAM SERVICE EXPENSES 1,776,519. MANAGEMENT AND GENERAL EXPENSES 18,086. FUNDRAISING EXPENSES 375. TOTAL EXPENSES 1,794,980.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART V, LINE 2A:</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE HAVE BEEN NO CHANGES TO OVERSIGHT OF THE AUDIT PROCESSES AND SELECTION OF AN INDEPENDENT ACCOUNTANT.</ExplanationTxt>
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          <AddressLine1Txt>700 TECHNOLOGY SQUARE 5TH FLOOR</AddressLine1Txt>
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      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
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        <MethodOfAmountDeterminationTxt>REIMBURSE MASSBIO FOR PAYROLL</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
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          <BusinessNameLine1Txt>MASSACHUSETTS BIOTECHNOLOGY COUNCIL</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>REIMBURSE FOR SHARED EMPLOYEES</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
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