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<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2019v5.0" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2020-04-28T11:00:34-07:00</ReturnTs>
    <TaxPeriodEndDt>2019-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>760269860</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Blazek &amp; Vetterling</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2900 Weslayan Suite 200</AddressLine1Txt>
        <CityNm>Houston</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>770275132</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2019-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>202028290</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Endowment for Regional Sustainability</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>Science</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>ENDO</BusinessNameControlTxt>
      <PhoneNum>7133775085</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2700 Technology Forest Blvd</AddressLine1Txt>
        <CityNm>The Woodlands</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>77381</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Keith Bickham</PersonNm>
      <PersonTitleTxt>Secretary</PersonTitleTxt>
      <SignatureDt>2020-04-28</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Jody Blazek</PreparerPersonNm>
      <PTIN>P00072674</PTIN>
      <PhoneNum>7134395739</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2019</TaxYr>
    <BuildTS>2021-01-29 14:40:06Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="6">
    <IRS990PF documentId="IRS990PF" referenceDocumentId="GeneralExplanation" softwareId="19009920" softwareVersionNum="2019v5.0">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>35158925</FMVAssetsEOYAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AnalysisOfRevenueAndExpenses>
        <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
        <InterestOnSavRevAndExpnssAmt>46185</InterestOnSavRevAndExpnssAmt>
        <InterestOnSavNetInvstIncmAmt>46185</InterestOnSavNetInvstIncmAmt>
        <DividendsRevAndExpnssAmt>203300</DividendsRevAndExpnssAmt>
        <DividendsNetInvstIncmAmt>203300</DividendsNetInvstIncmAmt>
        <NetGainSaleAstRevAndExpnssAmt>2784285</NetGainSaleAstRevAndExpnssAmt>
        <GrossSalesPriceAmt>19800265</GrossSalesPriceAmt>
        <CapGainNetIncmNetInvstIncmAmt>2784285</CapGainNetIncmNetInvstIncmAmt>
        <TotalRevAndExpnssAmt>3033770</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>3033770</TotalNetInvstIncmAmt>
        <AccountingFeesRevAndExpnssAmt referenceDocumentId="AccountingFeesSchedule">2500</AccountingFeesRevAndExpnssAmt>
        <AccountingFeesNetInvstIncmAmt>1250</AccountingFeesNetInvstIncmAmt>
        <AccountingFeesChrtblPrpsAmt>1250</AccountingFeesChrtblPrpsAmt>
        <OtherProfFeesRevAndExpnssAmt referenceDocumentId="OtherProfessionalFeesSchedule">12000</OtherProfFeesRevAndExpnssAmt>
        <OtherProfFeesNetInvstIncmAmt>7200</OtherProfFeesNetInvstIncmAmt>
        <OtherProfFeesDsbrsChrtblAmt>4800</OtherProfFeesDsbrsChrtblAmt>
        <TaxesRevAndExpnssAmt referenceDocumentId="TaxesSchedule">62269</TaxesRevAndExpnssAmt>
        <TaxesNetInvstIncmAmt>1803</TaxesNetInvstIncmAmt>
        <OtherExpensesRevAndExpnssAmt referenceDocumentId="OtherExpensesSchedule AmortizationSchedule">2787</OtherExpensesRevAndExpnssAmt>
        <OtherExpensesNetInvstIncmAmt>215</OtherExpensesNetInvstIncmAmt>
        <OtherExpensesDsbrsChrtblAmt>2572</OtherExpensesDsbrsChrtblAmt>
        <TotOprExpensesRevAndExpnssAmt>79556</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>10468</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>8622</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>2000000</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>2000000</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>2079556</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>10468</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>2008622</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>954214</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>3023302</NetInvestmentIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <SavAndTempCashInvstBOYAmt>1530135</SavAndTempCashInvstBOYAmt>
        <SavAndTempCashInvstEOYAmt>1347031</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>1347031</SavAndTempCashInvstEOYFMVAmt>
        <PrepaidExpensesBOYAmt>20385</PrepaidExpensesBOYAmt>
        <CorporateStockBOYAmt>21638752</CorporateStockBOYAmt>
        <CorporateStockEOYAmt referenceDocumentId="InvestmentsCorpStockSchedule">22836536</CorporateStockEOYAmt>
        <CorporateStockEOYFMVAmt>33811894</CorporateStockEOYFMVAmt>
        <TotalAssetsBOYAmt>23189272</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>24183567</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>35158925</TotalAssetsEOYFMVAmt>
        <AccountsPayableEOYAmt>40081</AccountsPayableEOYAmt>
        <TotalLiabilitiesEOYAmt>40081</TotalLiabilitiesEOYAmt>
        <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
        <CapitalStockBOYAmt>23189272</CapitalStockBOYAmt>
        <CapitalStockEOYAmt>24143486</CapitalStockEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>23189272</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>24143486</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>23189272</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>24183567</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>23189272</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>954214</ExcessRevenueOverExpensesAmt>
        <SubtotalAmt>24143486</SubtotalAmt>
        <TotNetAstOrFundBalancesEOYAmt>24143486</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>Publicly traded securities</PropertyDesc>
          <GrossSalesPriceAmt>19800265</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>17015980</CostOrOtherBasisAmt>
          <GainOrLossAmt>2784285</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>2784285</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapitalGainNetIncomeAmt>2784285</CapitalGainNetIncomeAmt>
      </CapGainsLossTxInvstIncmDetail>
      <QlfyUndSect4940eReducedTaxGrp>
        <LiableSection4942TaxInd>false</LiableSection4942TaxInd>
        <AdjustedQlfyDistriYr1Amt>2552549</AdjustedQlfyDistriYr1Amt>
        <NetVlNoncharitableAssetsYr1Amt>32046449</NetVlNoncharitableAssetsYr1Amt>
        <DistributionYr1Rt>0.07965</DistributionYr1Rt>
        <AdjustedQlfyDistriYr2Amt>3235453</AdjustedQlfyDistriYr2Amt>
        <NetVlNoncharitableAssetsYr2Amt>31744712</NetVlNoncharitableAssetsYr2Amt>
        <DistributionYr2Rt>0.10192</DistributionYr2Rt>
        <AdjustedQlfyDistriYr3Amt>3362927</AdjustedQlfyDistriYr3Amt>
        <NetVlNoncharitableAssetsYr3Amt>35383251</NetVlNoncharitableAssetsYr3Amt>
        <DistributionYr3Rt>0.09504</DistributionYr3Rt>
        <AdjustedQlfyDistriYr4Amt>1980350</AdjustedQlfyDistriYr4Amt>
        <NetVlNoncharitableAssetsYr4Amt>31393435</NetVlNoncharitableAssetsYr4Amt>
        <DistributionYr4Rt>0.06308</DistributionYr4Rt>
        <AdjustedQlfyDistriYr5Amt>2114847</AdjustedQlfyDistriYr5Amt>
        <NetVlNoncharitableAssetsYr5Amt>33549842</NetVlNoncharitableAssetsYr5Amt>
        <DistributionYr5Rt>0.06304</DistributionYr5Rt>
        <TotalDistributionRt>0.402734</TotalDistributionRt>
        <AverageDistributionRt>0.080547</AverageDistributionRt>
        <NetVlNoncharitableAssetsAmt>32005095</NetVlNoncharitableAssetsAmt>
        <AdjNetVlNoncharitableAssetsAmt>2577914</AdjNetVlNoncharitableAssetsAmt>
        <NetInvestmentIncomePctAmt>30233</NetInvestmentIncomePctAmt>
        <AdjNonchrtblNetInvstIncmPctAmt>2608147</AdjNonchrtblNetInvstIncmPctAmt>
        <QualifyingDistributionsAmt>2008622</QualifyingDistributionsAmt>
      </QlfyUndSect4940eReducedTaxGrp>
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>60466</InvestmentIncomeExciseTaxAmt>
        <SubtotalAmt>60466</SubtotalAmt>
        <TaxBasedOnInvestmentIncomeAmt>60466</TaxBasedOnInvestmentIncomeAmt>
        <EstimatedPlusOvpmtIncmTxAmt>20421</EstimatedPlusOvpmtIncmTxAmt>
        <TotalPaymentsAndCreditsAmt>20421</TotalPaymentsAndCreditsAmt>
        <TaxDueAmt>40045</TaxDueAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd>false</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd>false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>TX</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd>true</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>false</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>false</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>false</OwnControlledEntityInd>
        <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
        <PersonsWithBooksName>
          <BusinessNameLine1Txt>Keith Bickham</BusinessNameLine1Txt>
        </PersonsWithBooksName>
        <PhoneNum>7133775017</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>2700 Tech Forest Blvd 260</AddressLine1Txt>
          <CityNm>The Woodlands</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77381</ZIPCd>
        </LocationOfBooksUSAddress>
        <ForeignAccountsQuestionInd>false</ForeignAccountsQuestionInd>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>false</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>false</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>true</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>false</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <ActsFailToQlfyAsExceptionsInd>false</ActsFailToQlfyAsExceptionsInd>
        <UncorrectedPriorActsInd>false</UncorrectedPriorActsInd>
        <UndistributedIncomePYInd>false</UndistributedIncomePYInd>
        <BusinessHoldingsInd>false</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>false</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>false</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>false</InfluenceLegislationInd>
        <InfluenceElectionInd>false</InfluenceElectionInd>
        <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
        <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
        <NoncharitablePurposeInd>false</NoncharitablePurposeInd>
        <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
        <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
        <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
        <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      </StatementsRegardingActy4720Grp>
      <OfficerDirTrstKeyEmplInfoGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>J Todd Mitchell</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>President</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Keith Bickham</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>Secretary</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Marilu Hastings</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>Director</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Katherine Lorenz</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>Director</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Dietrich Scheder-Bieschin</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>Director</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Jonathan Zonis</PersonNm>
          <USAddress>
            <AddressLine1Txt>2700 Technology Forest 260</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </USAddress>
          <TitleTxt>Director</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
        </OfficerDirTrstKeyEmplGrp>
        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
      </OfficerDirTrstKeyEmplInfoGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>30539613</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>1952869</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>0</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>32492482</TotalFMVOfUnusedAssetsAmt>
        <ReductionClaimedAmt>0</ReductionClaimedAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>32492482</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>487387</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>32005095</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>1600255</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>1600255</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>60466</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>60466</TotalTaxAmt>
        <DistributableBeforeAdjAmt>1539789</DistributableBeforeAdjAmt>
        <DistributableBeforeDedAmt>1539789</DistributableBeforeDedAmt>
        <DistributableAsAdjustedAmt>1539789</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <QualifyingDistriPartXIIGrp>
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        <QualifyingDistributionsAmt>2008622</QualifyingDistributionsAmt>
        <AdjustedQualifyingDistriAmt>2008622</AdjustedQualifyingDistriAmt>
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        <DistributableAsAdjustedAmt>1539789</DistributableAsAdjustedAmt>
        <ExcessDistributionCyovYr5Amt>534877</ExcessDistributionCyovYr5Amt>
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        <QualifyingDistributionsAmt>2008622</QualifyingDistributionsAmt>
        <TreatedAsDistriFromCorpusAmt>0</TreatedAsDistriFromCorpusAmt>
        <AppliedToCurrentYearAmt>1539789</AppliedToCurrentYearAmt>
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        <TotalCorpusAmt>5655056</TotalCorpusAmt>
        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <ExcessDistriCyovFromYr5Amt>534877</ExcessDistriCyovFromYr5Amt>
        <ExcessDistriCyovToNextYrAmt>5120179</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear4Amt>423906</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>1603464</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>1656789</ExcessFromYear2Amt>
        <ExcessFromYear1Amt>967187</ExcessFromYear1Amt>
        <ExcessFromCurrentYearAmt>468833</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <SupplementaryInformationGrp>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>Houston Advanced Research Center</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>4800 Research Forest Dr</AddressLine1Txt>
            <CityNm>The Woodlands</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77381</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>N/A</RecipientRelationshipTxt>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>General support</GrantOrContributionPurposeTxt>
          <Amt>2000000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>2000000</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>46185</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DivAndIntFromSecPartVIIGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>203300</ExclusionAmt>
        </DivAndIntFromSecPartVIIGrp>
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>2784285</ExclusionAmt>
        </GainSalesAstOthThanInvntryGrp>
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>3033770</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>3033770</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="AccountingFeesSchedule" softwareId="19009920" softwareVersionNum="2019v5.0">
      <AccountingFeesDetail>
        <CategoryTxt>Tax compliance</CategoryTxt>
        <Amt>2500</Amt>
        <NetInvestmentIncomeAmt>1250</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>1250</DisbursementsCharitablePrpsAmt>
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    </AccountingFeesSchedule>
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      <InvestmentsCorporateStockGrp>
        <StockNm>6126 shs Adobe Inc</StockNm>
        <EOYBookValueAmt>935830</EOYBookValueAmt>
        <EOYFMVAmt>2020416</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Air Products &amp; Chemicals</StockNm>
        <EOYBookValueAmt>552173</EOYBookValueAmt>
        <EOYFMVAmt>704970</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>6250 shs Alibaba Group Holding</StockNm>
        <EOYBookValueAmt>656213</EOYBookValueAmt>
        <EOYFMVAmt>1325625</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>400 shs Alphabet Inc</StockNm>
        <EOYBookValueAmt>477968</EOYBookValueAmt>
        <EOYFMVAmt>534808</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>5000 shs American Express Co</StockNm>
        <EOYBookValueAmt>560450</EOYBookValueAmt>
        <EOYFMVAmt>622450</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Ametek Inc New</StockNm>
        <EOYBookValueAmt>181020</EOYBookValueAmt>
        <EOYFMVAmt>299220</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3500 shs Ansys Inc</StockNm>
        <EOYBookValueAmt>643343</EOYBookValueAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>845 shs Anthem Inc</StockNm>
        <EOYBookValueAmt>183206</EOYBookValueAmt>
        <EOYFMVAmt>255215</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>4974 shs Aon PLC CLA</StockNm>
        <EOYBookValueAmt>666338</EOYBookValueAmt>
        <EOYFMVAmt>1036034</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>6500 shs Apple Inc</StockNm>
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        <EOYFMVAmt>1908725</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>4500 shs Auto Home Inc</StockNm>
        <EOYBookValueAmt>280312</EOYBookValueAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>2250 shs Automatic Data Processing</StockNm>
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        <EOYFMVAmt>383625</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>660 shs Autozone Inc</StockNm>
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        <EOYFMVAmt>786265</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>5000 shs Cadence Design Systems</StockNm>
        <EOYBookValueAmt>302800</EOYBookValueAmt>
        <EOYFMVAmt>346800</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>5000 shs Copart Inc</StockNm>
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        <EOYFMVAmt>454700</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Costco Wholesale Corp</StockNm>
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        <EOYFMVAmt>881760</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>6000 shs CSX Corp</StockNm>
        <EOYBookValueAmt>442920</EOYBookValueAmt>
        <EOYFMVAmt>434160</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Eli Lilly&amp; Co</StockNm>
        <EOYBookValueAmt>268020</EOYBookValueAmt>
        <EOYFMVAmt>394290</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>4000 shs Estee Lauder Co Inc</StockNm>
        <EOYBookValueAmt>636800</EOYBookValueAmt>
        <EOYFMVAmt>826160</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>10700 shs Facebook Inc</StockNm>
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        <EOYFMVAmt>2196175</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>6000 shs Fiserv Inc</StockNm>
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        <EOYFMVAmt>693780</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Fleetcor Technologies</StockNm>
        <EOYBookValueAmt>694830</EOYBookValueAmt>
        <EOYFMVAmt>863160</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>5000 shs Global Payments Inc</StockNm>
        <EOYBookValueAmt>669350</EOYBookValueAmt>
        <EOYFMVAmt>912800</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Intuit Inc</StockNm>
        <EOYBookValueAmt>700008</EOYBookValueAmt>
        <EOYFMVAmt>785790</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>5885 shs JP Morgan Chase &amp; Co</StockNm>
        <EOYBookValueAmt>684249</EOYBookValueAmt>
        <EOYFMVAmt>820369</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>500 shs KLA Corp</StockNm>
        <EOYBookValueAmt>55473</EOYBookValueAmt>
        <EOYFMVAmt>89085</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>15000 shs Luckin Coffee Inc</StockNm>
        <EOYBookValueAmt>313000</EOYBookValueAmt>
        <EOYFMVAmt>590400</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3300 shs Marsh&amp; Mclennan Cos Inc</StockNm>
        <EOYBookValueAmt>204986</EOYBookValueAmt>
        <EOYFMVAmt>367653</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Mastercard Inc</StockNm>
        <EOYBookValueAmt>683398</EOYBookValueAmt>
        <EOYFMVAmt>895770</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>7000 shs Microsoft Corp</StockNm>
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        <EOYFMVAmt>1103900</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>1750 shs Moodys Corp</StockNm>
        <EOYBookValueAmt>317525</EOYBookValueAmt>
        <EOYFMVAmt>415468</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>2500 shs MSCI Inc Classa</StockNm>
        <EOYBookValueAmt>466100</EOYBookValueAmt>
        <EOYFMVAmt>645450</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>7000 shs Paychex Inc</StockNm>
        <EOYBookValueAmt>544921</EOYBookValueAmt>
        <EOYFMVAmt>595420</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>10500 shs Paypal Holdings Inc</StockNm>
        <EOYBookValueAmt>1045378</EOYBookValueAmt>
        <EOYFMVAmt>1135785</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>4300 shs Progressive Corp</StockNm>
        <EOYBookValueAmt>149553</EOYBookValueAmt>
        <EOYFMVAmt>311277</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>5000 shs Prologis Inc</StockNm>
        <EOYBookValueAmt>364049</EOYBookValueAmt>
        <EOYFMVAmt>445700</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>2850 shs Salesforce.Com Inc</StockNm>
        <EOYBookValueAmt>419406</EOYBookValueAmt>
        <EOYFMVAmt>463524</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>1840 shs Stryker Corp</StockNm>
        <EOYBookValueAmt>201637</EOYBookValueAmt>
        <EOYFMVAmt>386290</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>14000 shs TJX Cos Inc New</StockNm>
        <EOYBookValueAmt>463050</EOYBookValueAmt>
        <EOYFMVAmt>854840</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>2000 shs Verisign Inc</StockNm>
        <EOYBookValueAmt>399853</EOYBookValueAmt>
        <EOYFMVAmt>385360</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>7500 shs Visa Inc</StockNm>
        <EOYBookValueAmt>825394</EOYBookValueAmt>
        <EOYFMVAmt>1409250</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>3586 shs VMware Inc</StockNm>
        <EOYBookValueAmt>391496</EOYBookValueAmt>
        <EOYFMVAmt>544319</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>7200 shs Waltdisney Co</StockNm>
        <EOYBookValueAmt>1001303</EOYBookValueAmt>
        <EOYFMVAmt>1041336</EOYFMVAmt>
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      <InvestmentsCorporateStockGrp>
        <StockNm>12000 shs Waste Connections Inc</StockNm>
        <EOYBookValueAmt>685920</EOYBookValueAmt>
        <EOYFMVAmt>1089480</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>3000 shs Xilinx Inc</StockNm>
        <EOYBookValueAmt>199830</EOYBookValueAmt>
        <EOYFMVAmt>293310</EOYFMVAmt>
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        <RevenueAndExpensesPerBooksAmt>215</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>215</NetInvestmentIncomeAmt>
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      <OtherExpensesScheduleGrp>
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        <RevenueAndExpensesPerBooksAmt>2572</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>2572</DisbursementsCharitablePrpsAmt>
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        <Amt>12000</Amt>
        <NetInvestmentIncomeAmt>7200</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>4800</DisbursementsCharitablePrpsAmt>
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        <Amt>1803</Amt>
        <NetInvestmentIncomeAmt>1803</NetInvestmentIncomeAmt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>