﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2018v3.1" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2020-01-31T09:39:35-08:00</ReturnTs>
    <TaxPeriodEndDt>2018-12-31</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>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2018-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>746053200</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Texas Heart Institute</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>TEXA</BusinessNameControlTxt>
      <PhoneNum>8323554011</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO Box 20345</AddressLine1Txt>
        <CityNm>Houston</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>77225</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Howard Schramm</PersonNm>
      <PersonTitleTxt>CAO</PersonTitleTxt>
      <SignatureDt>2020-01-31</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Barbara Murphy</PreparerPersonNm>
      <PTIN>P01386215</PTIN>
      <PhoneNum>7134395739</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2018</TaxYr>
    <BuildTS>2020-09-23 17:36:50Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="8">
    <IRS990 documentId="IRS990" referenceDocumentId="IRS990ScheduleO" softwareId="18007218" softwareVersionNum="2018v3.1">
      <PrincipalOfficerNm>Howard Schramm</PrincipalOfficerNm>
      <GrossReceiptsAmt>45503023</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <AllAffiliatesIncludedInd>false</AllAffiliatesIncludedInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.texasheart.org</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1962</FormationYr>
      <LegalDomicileStateCd>TX</LegalDomicileStateCd>
      <ActivityOrMissionDesc>Texas Heart Institute (THI) is dedicated to reducing the devastating toll of cardiovascular disease through innovative and progressive programs in research, education and improved patient care.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>15</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>14</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>214</TotalEmployeeCnt>
      <TotalVolunteersCnt>30</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>25604252</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>16432564</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>1153420</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>6739976</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>1826126</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>1338321</CYInvestmentIncomeAmt>
      <CYOtherRevenueAmt>369541</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>28583798</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>24880402</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>18421649</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>17895319</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>749193</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>15899627</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>14527496</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>34321276</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>32422815</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-5737478</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-7542413</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>109443681</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>171250541</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>4475266</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>5082214</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>104968415</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>166168327</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>The mission of Texas Heart Institute (THI) is to reduce the devastating toll of cardiovascular disease through innovative programs in research, education and improved patient care.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>21481957</ExpenseAmt>
      <RevenueAmt>6195714</RevenueAmt>
      <Desc>Medical Research The goals that Dr. Denton A. Cooley and his colleagues first laid out for the Texas Heart Institute in 1962 still hold true for the THI research community. Research groups led by scientists and physician-scientists work collaboratively to discover new ways to prevent, diagnose and treat cardiovascular diseases. The critical need for this research is clear. Cardiovascular disease or diseases of the heart and blood vessels, including stroke is the leading cause of death globally. In the United States alone, about 2,300 people die of heart and vascular disease each day, or about one person every 38 seconds. Our goal is to improve the lives of people with cardiovascular disease by translating our innovative approaches into safe and effective clinical treatments, diagnostic methods, and medical devices. This requires moving our discoveries from the lab bench through preclinical studies and then to clinical trials, for eventual use with patients. THI investigators are also studying the risk factors that may cause people to develop heart and vascular disease, and seeking ways to prevent people from developing these illnesses.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>1265332</ExpenseAmt>
        <RevenueAmt>544262</RevenueAmt>
        <Desc>Education - A strong educational focus remains a central part of the Texas Heart Institutes mission. This includes the education of clinical fellows and postdoctoral fellows/early career scientists; continuing education of practicing physicians, clinical researchers, scientists and other health-care professionals; and outreach programs designed to bring heart-health awareness and education to the community. The ACCME-accredited THI Office of Continuing Medical Education (CME) hosts a range of conferences, symposium and other events to meet the educational needs of the professionals listed above, and several seminar series promote dissemination of the latest clinical approaches and scientific findings. Additionally, the peer-reviewed Texas Heart Institute Journal is published online as an open-access resource for members of the cardiovascular medicine community.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>22747289</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD">false</CreditCounselingInd>
      <TempOrPermanentEndowmentsInd referenceDocumentId="IRS990ScheduleD">true</TempOrPermanentEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD">true</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD">true</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="IRS990ScheduleJ">true</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <InvestTaxExemptBondsInd>false</InvestTaxExemptBondsInd>
      <EscrowAccountInd>false</EscrowAccountInd>
      <OnBehalfOfIssuerInd>false</OnBehalfOfIssuerInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWithOfficerEntInd>false</BusinessRlnWithOfficerEntInd>
      <DeductibleNonCashContriInd referenceDocumentId="IRS990ScheduleM">true</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd referenceDocumentId="IRS990ScheduleM">false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="IRS990ScheduleR">false</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="IRS990ScheduleR">true</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>true</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd referenceDocumentId="IRS990ScheduleR">false</TransactionWithControlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="IRS990ScheduleR">false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="IRS990ScheduleR">false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>99</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>214</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>false</Form990TFiledInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <Form8282FiledCnt>0</Form8282FiledCnt>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <Form8899Filedind>false</Form8899Filedind>
      <Form1098CFiledInd>false</Form1098CFiledInd>
      <DAFExcessBusinessHoldingsInd>false</DAFExcessBusinessHoldingsInd>
      <TaxableDistributionsInd>false</TaxableDistributionsInd>
      <DistributionToDonorInd>false</DistributionToDonorInd>
      <OrgFiledInLieuOfForm1041Ind>false</OrgFiledInLieuOfForm1041Ind>
      <LicensedMoreThanOneStateInd>false</LicensedMoreThanOneStateInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>15</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>14</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>true</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>Howard Schramm</PersonNm>
        <PhoneNum>8323558173</PhoneNum>
        <USAddress>
          <AddressLine1Txt>PO Box 20345</AddressLine1Txt>
          <CityNm>Houston</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77225</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>Eric D Wade</PersonNm>
        <TitleTxt>Chairman</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Alfred C Glassell III</PersonNm>
        <TitleTxt>Vice Chair</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Charles D Fraser Jr MD</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jerome E Granato MD</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>David M Grimes II</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Barbara R Hurwitz</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Anthony K Jones</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>T Douglas Lawson</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Rodney H Margolis</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mark McGinnis</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Reed Morian</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Gay Nord</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mark Parrington</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Earl Shipp as of 1018</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Fred S Zeidman</PersonNm>
        <TitleTxt>Treasurer &amp; CFO</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>250000</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>James Willerson</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>511125</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>705</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Michael McGee</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>220281</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21831</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Doris Taylor</PersonNm>
        <TitleTxt>Dir RMR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>494334</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>14739</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Richard Dixon</PersonNm>
        <TitleTxt>Dir Research Lab</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>481638</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>25030</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Emerson Perin</PersonNm>
        <TitleTxt>Dir Clinical Research</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>402223</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>27930</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter Vanderslice</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>199211</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>19318</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Ronald Biediger</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>184492</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>18735</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Luiz Sampaio</PersonNm>
        <TitleTxt>Asst Medical Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>179628</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>20245</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Darren Woodside</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>162882</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>5387</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jennifer Chambers</PersonNm>
        <TitleTxt>Administrative Dir</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>139723</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>21462</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Robert Market</PersonNm>
        <TitleTxt>MCRL Asst Dir</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>137186</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>17170</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Thomas Rivers</PersonNm>
        <TitleTxt>Controller</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>146826</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>10904</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Gil Costas</PersonNm>
        <TitleTxt>Dir-Lab Animal Pgm</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>131043</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>12920</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Marcia Strauss</PersonNm>
        <TitleTxt>Development Dir</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>121334</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>10538</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>3761926</TotalReportableCompFromOrgAmt>
      <TotalOtherCompensationAmt>226914</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>30</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Baylor College of Medicine</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO Box 4976 MSC 800</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77210</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Phenotyping services</ServicesDesc>
        <CompensationAmt>412535</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Mehdi Razavi</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>4138 Bellefontaine</AddressLine1Txt>
            <CityNm>Houston</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77025</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Medical research</ServicesDesc>
        <CompensationAmt>108000</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>16432564</AllOtherContributionsAmt>
      <NoncashContributionsAmt>947447</NoncashContributionsAmt>
      <TotalContributionsAmt>16432564</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Event registration fees</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>168011</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>168011</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Exhibit fees</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>264236</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>264236</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Management/Program fees</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>99340</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>99340</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Medical research fees</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>6195714</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6195714</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Publication revenue</Desc>
        <BusinessCd>519100</BusinessCd>
        <TotalRevenueColumnAmt>12675</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12675</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>6739976</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1095729</TotalRevenueColumnAmt>
        <ExclusionAmt>1095729</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>412488</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>42947</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>369541</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>369541</TotalRevenueColumnAmt>
        <ExclusionAmt>369541</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>20822266</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>20579674</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>242592</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>242592</TotalRevenueColumnAmt>
        <ExclusionAmt>242592</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <NetIncomeFromGamingGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeFromGamingGrp>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueTotalAmt>0</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>24880402</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>6739976</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>1707862</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>0</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>3239735</TotalAmt>
        <ProgramServicesAmt>2460030</ProgramServicesAmt>
        <ManagementAndGeneralAmt>716329</ManagementAndGeneralAmt>
        <FundraisingAmt>63376</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>11067631</TotalAmt>
        <ProgramServicesAmt>8418903</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2423884</ManagementAndGeneralAmt>
        <FundraisingAmt>224844</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>1049463</TotalAmt>
        <ProgramServicesAmt>839017</ProgramServicesAmt>
        <ManagementAndGeneralAmt>188338</ManagementAndGeneralAmt>
        <FundraisingAmt>22108</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>1619836</TotalAmt>
        <ProgramServicesAmt>1172554</ProgramServicesAmt>
        <ManagementAndGeneralAmt>428405</ManagementAndGeneralAmt>
        <FundraisingAmt>18877</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>918654</TotalAmt>
        <ProgramServicesAmt>697957</ProgramServicesAmt>
        <ManagementAndGeneralAmt>199830</ManagementAndGeneralAmt>
        <FundraisingAmt>20867</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>572230</TotalAmt>
        <ProgramServicesAmt>146708</ProgramServicesAmt>
        <ManagementAndGeneralAmt>411595</ManagementAndGeneralAmt>
        <FundraisingAmt>13927</FundraisingAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>125059</TotalAmt>
        <ManagementAndGeneralAmt>125059</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>307144</TotalAmt>
        <ManagementAndGeneralAmt>307144</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>3466398</TotalAmt>
        <ProgramServicesAmt>2273076</ProgramServicesAmt>
        <ManagementAndGeneralAmt>928031</ManagementAndGeneralAmt>
        <FundraisingAmt>265291</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>18170</TotalAmt>
        <ProgramServicesAmt>1760</ProgramServicesAmt>
        <ManagementAndGeneralAmt>50</ManagementAndGeneralAmt>
        <FundraisingAmt>16360</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>392948</TotalAmt>
        <ProgramServicesAmt>228944</ProgramServicesAmt>
        <ManagementAndGeneralAmt>152879</ManagementAndGeneralAmt>
        <FundraisingAmt>11125</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>485929</TotalAmt>
        <ProgramServicesAmt>58944</ProgramServicesAmt>
        <ManagementAndGeneralAmt>401055</ManagementAndGeneralAmt>
        <FundraisingAmt>25930</FundraisingAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>3904046</TotalAmt>
        <ProgramServicesAmt>2149596</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1707980</ManagementAndGeneralAmt>
        <FundraisingAmt>46470</FundraisingAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>227228</TotalAmt>
        <ProgramServicesAmt>215535</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9355</ManagementAndGeneralAmt>
        <FundraisingAmt>2338</FundraisingAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>0</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>6253</TotalAmt>
        <ManagementAndGeneralAmt>6253</ManagementAndGeneralAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>2044990</TotalAmt>
        <ProgramServicesAmt>1417321</ProgramServicesAmt>
        <ManagementAndGeneralAmt>617567</ManagementAndGeneralAmt>
        <FundraisingAmt>10102</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>102120</TotalAmt>
        <ManagementAndGeneralAmt>102120</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Materials and supplies</Desc>
        <TotalAmt>2585991</TotalAmt>
        <ProgramServicesAmt>2553984</ProgramServicesAmt>
        <ManagementAndGeneralAmt>30873</ManagementAndGeneralAmt>
        <FundraisingAmt>1134</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Dues &amp; Licenses</Desc>
        <TotalAmt>222847</TotalAmt>
        <ProgramServicesAmt>60970</ProgramServicesAmt>
        <ManagementAndGeneralAmt>157248</ManagementAndGeneralAmt>
        <FundraisingAmt>4629</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Non-operating expenses</Desc>
        <TotalAmt>26773</TotalAmt>
        <ProgramServicesAmt>24958</ProgramServicesAmt>
        <FundraisingAmt>1815</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Taxes &amp; licenses</Desc>
        <TotalAmt>20762</TotalAmt>
        <ProgramServicesAmt>8864</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11898</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>18608</TotalAmt>
        <ProgramServicesAmt>18168</ProgramServicesAmt>
        <ManagementAndGeneralAmt>440</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>32422815</TotalAmt>
        <ProgramServicesAmt>22747289</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8926333</ManagementAndGeneralAmt>
        <FundraisingAmt>749193</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>2590615</BOYAmt>
        <EOYAmt>2785661</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>4120956</BOYAmt>
        <EOYAmt>2820069</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>10563983</BOYAmt>
        <EOYAmt>3813748</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>20224</BOYAmt>
        <EOYAmt>1420163</EOYAmt>
      </AccountsReceivableGrp>
      <ReceivablesFromOfficersEtcGrp>
        <EOYAmt>0</EOYAmt>
      </ReceivablesFromOfficersEtcGrp>
      <RcvblFromDisqualifiedPrsnGrp>
        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
        <EOYAmt>0</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
        <EOYAmt>0</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>158115</BOYAmt>
        <EOYAmt>92806</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>63387172</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>38379797</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>26831466</BOYAmt>
        <EOYAmt>25007375</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>47762408</BOYAmt>
        <EOYAmt>46028433</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>5000000</BOYAmt>
        <EOYAmt>5000000</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <EOYAmt>0</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>12395914</BOYAmt>
        <EOYAmt>84282286</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>109443681</BOYAmt>
        <EOYAmt>171250541</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>1467426</BOYAmt>
        <EOYAmt>1441071</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>1865918</BOYAmt>
        <EOYAmt>2222616</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>1141922</BOYAmt>
        <EOYAmt>1418527</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>4475266</BOYAmt>
        <EOYAmt>5082214</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>79434886</BOYAmt>
        <EOYAmt>77550089</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>25533529</BOYAmt>
        <EOYAmt>88618238</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>104968415</BOYAmt>
        <EOYAmt>166168327</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>109443681</BOYAmt>
        <EOYAmt>171250541</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>-7542413</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-6139445</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>74881770</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>true</FederalGrantAuditRequiredInd>
      <FederalGrantAuditPerformedInd>true</FederalGrantAuditPerformedInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA" softwareId="18007218" softwareVersionNum="2018v3.1">
      <MedicalResearchOrganizationInd>X</MedicalResearchOrganizationInd>
      <HospitalNameAndAddressGrp>
        <SupportedOrganizationName>
          <BusinessNameLine1Txt>CHI St Lukes Baylor Med Ctr</BusinessNameLine1Txt>
        </SupportedOrganizationName>
        <CityNm>Houston</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
      </HospitalNameAndAddressGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB" softwareId="18007218" softwareVersionNum="2018v3.1">
      <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="IRS990ScheduleD" softwareId="18007218" softwareVersionNum="2018v3.1">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>25773307</BeginningYearBalanceAmt>
        <ContributionsAmt>272761</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-735364</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>1310119</GrantsOrScholarshipsAmt>
        <EndYearBalanceAmt>24000585</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>0.76230</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.23770</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>true</EndowmentsHeldRelatedOrgInd>
      <RelatedOrgListSchRInd>false</RelatedOrgListSchRInd>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>46155436</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>21983284</DepreciationAmt>
        <BookValueAmt>24172152</BookValueAmt>
      </BuildingsGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>425096</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>425096</DepreciationAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>16806640</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>15971417</DepreciationAmt>
        <BookValueAmt>835223</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>25007375</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>Beneficial int in fds hld by affiliate</Desc>
        <BookValueAmt>72435464</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>Due from affiliates</Desc>
        <BookValueAmt>11846822</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>84282286</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Long-term pension obligation</Desc>
        <Amt>208739</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Payable to CHI ST Luke's Hosp.</Desc>
        <Amt>1209788</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>1418527</TotalLiabilityAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 4: Intended uses of the endowment fund.</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's endowment consists of funds established to provide long-term support for THI's various education and research programs, including stem cell research, the annual cardiology symposium, artifical heart research and development, cardiovascular surgical research with a focus on children, cardiology research, the Huffington endowment, and visual communication services.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ" softwareId="18007218" softwareVersionNum="2018v3.1">
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RebuttablePresumptionProcInd>false</RebuttablePresumptionProcInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Darren Woodside</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>162882</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>4922</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>465</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>168269</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Doris Taylor</PersonNm>
        <TitleTxt>Dir RMR</TitleTxt>
        <BaseCompensationFilingOrgAmt>494334</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>4809</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>9930</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>509073</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Emerson Perin</PersonNm>
        <TitleTxt>Dir Clinical Research</TitleTxt>
        <BaseCompensationFilingOrgAmt>402223</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>8250</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>19680</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>430153</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Fred S Zeidman</PersonNm>
        <TitleTxt>Treasurer &amp; CFO</TitleTxt>
        <BaseCompensationFilingOrgAmt>250000</BaseCompensationFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>250000</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>James Willerson</PersonNm>
        <TitleTxt>President</TitleTxt>
        <BaseCompensationFilingOrgAmt>511125</BaseCompensationFilingOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>705</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>511830</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jennifer Chambers</PersonNm>
        <TitleTxt>Administrative Dir</TitleTxt>
        <BaseCompensationFilingOrgAmt>139723</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>2308</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>19154</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>161185</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Luiz Sampaio</PersonNm>
        <TitleTxt>Asst Medical Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>179628</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>1154</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>19091</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>199873</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Michael McGee</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <BaseCompensationFilingOrgAmt>220281</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>6748</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>15083</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>242112</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Peter Vanderslice</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>199211</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>6440</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>12878</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>218529</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Richard Dixon</PersonNm>
        <TitleTxt>Dir Research Lab</TitleTxt>
        <BaseCompensationFilingOrgAmt>481638</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>10533</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>14497</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>506668</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Robert Market</PersonNm>
        <TitleTxt>MCRL Asst Dir</TitleTxt>
        <BaseCompensationFilingOrgAmt>137186</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>4479</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>12691</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>154356</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Ronald Biediger</PersonNm>
        <TitleTxt>Associate Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>184492</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>5908</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>12827</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>203227</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Thomas Rivers</PersonNm>
        <TitleTxt>Controller</TitleTxt>
        <BaseCompensationFilingOrgAmt>146826</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>737</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>10167</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>157730</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="IRS990ScheduleM" softwareId="18007218" softwareVersionNum="2018v3.1">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>947447</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>NYSE</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>false</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="18007218" softwareVersionNum="2018v3.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>The CAO and Controller review Form 990 for accuracy prior to filing with the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</FormAndLineReferenceDesc>
        <ExplanationTxt>The conflict of interest policy is delivered to each employee for a self audit annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a: Compensation Review &amp; Approval Process - CEO, Top Management</FormAndLineReferenceDesc>
        <ExplanationTxt>Approval by the board of trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b: Compensation Review and Approval Process for Officers and Key Employees</FormAndLineReferenceDesc>
        <ExplanationTxt>See above for process followed for individuals described in question 15b.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>These documents will be made available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>Beneficial interest in funds held by affiliates = $74520948</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>Pension liability adjustments = $360822</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR" softwareId="18007218" softwareVersionNum="2018v3.1">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Texas Heart Institute Foundation</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO Box 20345</AddressLine1Txt>
          <CityNm>Houston</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77225</ZIPCd>
        </USAddress>
        <EIN>760080297</EIN>
        <PrimaryActivitiesTxt>Cardiovascular research support</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>TX</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12a</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Texas Heart Institute</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Cardiopulmonary Perfusion Assoc</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO Box 20345</AddressLine1Txt>
          <CityNm>Houston</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77225</ZIPCd>
        </USAddress>
        <EIN>760313066</EIN>
        <PrimaryActivitiesTxt>Cardiopulmonary perfusion school</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>TX</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12a</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Texas Heart Institute</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>