﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-08-29T06:09:08-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>390859910</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>BAKER TILLY ADVISORY GROUP LP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1570 FRUITVILLE PIKE SUITE 400</AddressLine1Txt>
        <CityNm>LANCASTER</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>17601</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>223369741</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL SOCIETY FOR</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>PHARMACOECONOMICS OUTCOMES RESEARCH</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <PhoneNum>6095864981</PhoneNum>
      <USAddress>
        <AddressLine1Txt>505 LAWRENCE SQUARE BLVD SOUTH</AddressLine1Txt>
        <CityNm>LAWRENCEVILLE</CityNm>
        <StateAbbreviationCd>NJ</StateAbbreviationCd>
        <ZIPCd>08648</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>ROBERT ABBOTT</PersonNm>
      <PersonTitleTxt>CEO &amp; EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>6095864981</PhoneNum>
      <SignatureDt>2024-08-19</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>KERRI N BOGDA CPA</PreparerPersonNm>
      <PTIN>P00760402</PTIN>
      <PhoneNum>7177404863</PhoneNum>
      <PreparationDt>2024-08-19</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-08-08 14:25:15Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>ROBERT ABBOTT</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>505 LAWRENCE SQUARE BLVD SOUTH</AddressLine1Txt>
        <CityNm>LAWRENCEVILLE</CityNm>
        <StateAbbreviationCd>NJ</StateAbbreviationCd>
        <ZIPCd>08648</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>31446481</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.ISPOR.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1995</FormationYr>
      <LegalDomicileStateCd>NJ</LegalDomicileStateCd>
      <ActivityOrMissionDesc>PROMOTE GLOBAL HEALTH ECONOMICS AND OUTCOMES RESEARCH EXCELLENCE TO IMPROVE DECISION MAKING</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>13</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>12</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>65</TotalEmployeeCnt>
      <TotalVolunteersCnt>1300</TotalVolunteersCnt>
      <TotalGrossUBIAmt>21800</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>11437</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>40000</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>25000</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>14205222</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>18800930</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>157836</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>-402340</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>189942</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>60171</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>14593000</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>18483761</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>0</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>6900605</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>7367146</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>8256369</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>9860751</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>15156974</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>17227897</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-563974</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>1255864</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>23939884</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>27237931</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>4053006</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>2891022</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>19886878</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>24346909</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE MISSION OF INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS OUTCOMES RESEARCH (ISPOR) IS TO PROMOTE HEALTH ECONOMICS AND OUTCOMES RESEARCH EXCELLENCE TO IMPROVE DECISION MAKING FOR HEALTH GLOBALLY.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>14188007</ExpenseAmt>
      <GrantAmt>0</GrantAmt>
      <RevenueAmt>18779130</RevenueAmt>
      <Desc>ISPOR IS A NON-PROFIT GLOBAL SCIENTIFIC AND EDUCATIONAL ORGANIZATION WITH APPROXIMATELY 9,296 MEMBERS, WHO ARE INVOLVED IN HEALTHCARE OUTCOMES RESEARCH (INCLUDING CLINICAL, ECONOMIC AND PATIENT-REPORTED OUTCOMES) OF HEALTH TECHNOLOGIES (DRUGS, DEVICES, DIAGNOSTICS) AND SERVICES OR THE USE OF OUTCOMES RESEARCH IN HEALTHCARE DECISIONS. THE MISSION OF ISPOR IS TO PROMOTE HEALTH ECONOMICS AND OUTCOMES RESEARCH EXCELLENCE TO IMPROVE DECISION MAKING FOR HEALTH GLOBALLY. ISPOR IS FUNDED THROUGH ITS MEETINGS, TRAINING COURSES AND MEMBERSHIP DUES. THROUGH ITS MULTIPLE MEETINGS EACH YEAR, ISPOR PROVIDES A FORUM TO FACILITATE THE INTERCHANGE OF SCIENTIFIC KNOWLEDGE IN PHARMACOECONOMICS /HEALTH ECONOMICS AND OUTCOMES RESEARCH, HEALTH POLICY AND THE USE OF THIS RESEARCH IN HEALTHCARE DECISIONS.ISPOR PUBLISHES TWO SCIENTIFIC JOURNALS, ONE HEOR NEWS MAGAZINE, AND FOUR ELECTRONIC NEWSLETTERS. ISPOR DEVELOPS CONSENSUS DOCUMENTS (GOOD PRACTICES/GUIDELINES) ON OUTCOMES RESEARCH METHODS OR USE OF THIS RESEARCH IN HEALTHCARE DECISIONS. ISPOR FOSTERS EDUCATION AND THE DEVELOPMENT OF OUTCOMES RESEARCH AT THE LOCAL LEVEL WITH ITS REGIONAL CHAPTERS AND STUDENT CHAPTERS GLOBALLY TO PROMOTE THE SCIENCE OF PHARMACOECONOMICS/HEALTH ECONOMICS AND HEALTH OUTCOMES RESEARCH WORLDWIDE. IN 2023, ISPOR HOSTED THREE IN-PERSON CONFERENCES: THE INTERNATIONAL CONFERENCE AND REAL-WORLD EVIDENCE SUMMIT IN BOSTON, AND THE EUROPEAN CONFERENCE IN COPENHAGEN, FEATURING OVER 5,200 SCIENTIFIC PRESENTATIONS. WE ALSO PUBLISHED 3,778 PAGES OF OUTCOMES RESEARCH AND HEALTH POLICY PAPERS IN OUR JOURNALSVALUE IN HEALTH, VALUE IN HEALTH REGIONAL ISSUES, AND VALUE &amp; OUTCOMES SPOTLIGHT.OUR GLOBAL REACH IS EVIDENT IN OUR 7,775 MEMBERS FROM 99 COUNTRIES, 136 STUDENT CHAPTERS, AND 84 REGIONAL CHAPTERS. THROUGH ISPOR TASK FORCES, COUNCILS, AND SPECIAL INTEREST GROUPS, ISPOR ALSO DEVELOPS CONSENSUS GUIDELINES ON OUTCOMES RESEARCH METHODS AND THE APPLICATION OF THIS RESEARCH IN HEALTHCARE DECISIONS. OUR TOOLS FOR RESEARCHERS, SUCH AS THE GOOD PRACTICES FOR OUTCOMES RESEARCH, ARE WIDELY UTILIZED, WITH OVER 1,000,000 DOWNLOADS ANNUALLY, AND OUR WEB-BASED DATABASE CONTAINS OVER 74,000 RESEARCH PRESENTATIONS FROM ISPOR MEETINGS. THROUGH THESE EFFORTS, ISPOR FOSTERS THE EDUCATION AND DEVELOPMENT OF OUTCOMES RESEARCH WORLDWIDE.</Desc>
      <TotalProgramServiceExpensesAmt>14188007</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>0</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd referenceDocumentId="RetDoc1040500001">1</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd referenceDocumentId="RetDoc1040500001">0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="RetDoc1040500001">0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="RetDoc1043400001">1</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="RetDoc1043400001">0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="RetDoc1043400001">0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>73</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>65</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>1</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>1</Form990TFiledInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>13</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>12</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>1</LocalChaptersInd>
      <PoliciesReferenceChaptersInd>1</PoliciesReferenceChaptersInd>
      <Form990ProvidedToGvrnBodyInd>0</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>NJ</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>JILL CHEN</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>6095864981</PhoneNum>
        <USAddress>
          <AddressLine1Txt>505 LAWRENCE SQUARE BLVD SOUTH</AddressLine1Txt>
          <CityNm>LAWRENCEVILLE</CityNm>
          <StateAbbreviationCd>NJ</StateAbbreviationCd>
          <ZIPCd>08648</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>NANCY S BERG</PersonNm>
        <TitleTxt>CEO &amp; EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>257968</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>20944</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAN ELIAS HANSON PHD</PersonNm>
        <TitleTxt>PAST PRESIDENT (SINCE JULY 2023)</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>BRIAN O'ROURKE</PersonNm>
        <TitleTxt>PRESIDENT (SINCE JULY 2023)</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>SEAN SULLIVAN MSC PHD</PersonNm>
        <TitleTxt>TREASURER</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>DAVID THOMPSON PHD</PersonNm>
        <TitleTxt>DIRECTOR (UNTIL 6/30/23)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EBERECHUKWU ONUKWUGHA MS PHD</PersonNm>
        <TitleTxt>PRESIDENT-ELECT (SINCE JULY 2023)</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>BETH DEVINE PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARLENE GYLDMARK MPHIL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANDREA MANCA MSC PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DONG-CHURL SUH PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LOTTE STEUTEN MPHIL</PersonNm>
        <TitleTxt>DIRECTOR (UNTIL 6/30/23)</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DALIA DAWOUD PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AMY K O'SULLIVAN PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LUCINDA ORSINI DPM MPH</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ISAO KAME</PersonNm>
        <TitleTxt>PRESIDENT TO 7/1/23 THEN PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN CAPON</PersonNm>
        <TitleTxt>CHIEF OPERATING OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>380503</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>30305</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JILL CHEN</PersonNm>
        <TitleTxt>DIRECTOR, FINANCE AND ACCOUNTING</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>155317</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>42423</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ELIZABETH LANE</PersonNm>
        <TitleTxt>CHIEF MARKETING OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>215462</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>25527</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAURA PIZZI</PersonNm>
        <TitleTxt>CHIEF SCIENCE OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>300058</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>56881</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL WONG</PersonNm>
        <TitleTxt>DIRECTOR, GLOBAL EVENTS</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>197764</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>11866</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER OLSEN-CASILLAS</PersonNm>
        <TitleTxt>DIRECTOR, MEMBER ENGAGEMENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>199150</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>34540</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHELLE ROVNER</PersonNm>
        <TitleTxt>DIRECTOR, MARKETING</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>190242</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>34005</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1896464</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>256491</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>19</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FREEMAN</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>14221 DALLAS PARKWAY</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75254</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>AUDIO VISUAL</ServicesDesc>
        <CompensationAmt>574299</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>LEVY PREMIUM FOOD SERVICE</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>415 SUMMER STREET</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02210</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CATERING AND SERVICE</ServicesDesc>
        <CompensationAmt>506089</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>VENABLE LLP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 62727</AddressLine1Txt>
            <CityNm>BALTIMORE</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>212642727</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>LEGAL SERVICES</ServicesDesc>
        <CompensationAmt>387635</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>TAFT COMMUNICATIONS LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>35 CLARK STREET SUITE 101</AddressLine1Txt>
            <CityNm>TRENTON</CityNm>
            <StateAbbreviationCd>NJ</StateAbbreviationCd>
            <ZIPCd>08611</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>MARKETING/COMMUNICATION</ServicesDesc>
        <CompensationAmt>313815</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>RICHARD J WILLKE</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>11622 CHANNEL FRONT CT</AddressLine1Txt>
            <CityNm>SODDY DAISY</CityNm>
            <StateAbbreviationCd>TN</StateAbbreviationCd>
            <ZIPCd>37379</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>SCIENTIFIC CONSULTING</ServicesDesc>
        <CompensationAmt>298282</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>13</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>25000</AllOtherContributionsAmt>
      <TotalContributionsAmt>25000</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>MEETING REVENUE</Desc>
        <BusinessCd>611430</BusinessCd>
        <TotalRevenueColumnAmt>15339562</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>15339562</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EBULLETIN/TECH JOURNAL REVENUE</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>1514671</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1492871</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>21800</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBER SERVICES</Desc>
        <BusinessCd>611430</BusinessCd>
        <TotalRevenueColumnAmt>1294624</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1294624</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EDUCATION AND SCIENTIFIC REVENUE</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>652073</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>652073</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>18800930</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>556459</TotalRevenueColumnAmt>
        <ExclusionAmt>556459</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossRentsGrp>
        <RealAmt>152298</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>96447</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>55851</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>55851</TotalRevenueColumnAmt>
        <ExclusionAmt>55851</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>11907474</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>12866273</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-958799</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-958799</TotalRevenueColumnAmt>
        <ExclusionAmt>-958799</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>WIRE TRANSFER FEES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>4320</TotalRevenueColumnAmt>
        <ExclusionAmt>4320</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>4320</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>18483761</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>18779130</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>21800</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>-342169</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>887460</TotalAmt>
        <ProgramServicesAmt>663364</ProgramServicesAmt>
        <ManagementAndGeneralAmt>224096</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>5144095</TotalAmt>
        <ProgramServicesAmt>3845140</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1298955</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>233080</TotalAmt>
        <ProgramServicesAmt>174224</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58856</ManagementAndGeneralAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>484072</TotalAmt>
        <ProgramServicesAmt>361837</ProgramServicesAmt>
        <ManagementAndGeneralAmt>122235</ManagementAndGeneralAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>618439</TotalAmt>
        <ProgramServicesAmt>462274</ProgramServicesAmt>
        <ManagementAndGeneralAmt>156165</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>324755</TotalAmt>
        <ProgramServicesAmt>312382</ProgramServicesAmt>
        <ManagementAndGeneralAmt>12373</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>222012</TotalAmt>
        <ProgramServicesAmt>213553</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8459</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>77493</TotalAmt>
        <ManagementAndGeneralAmt>77493</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>717728</TotalAmt>
        <ProgramServicesAmt>690383</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27345</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>1096366</TotalAmt>
        <ProgramServicesAmt>819518</ProgramServicesAmt>
        <ManagementAndGeneralAmt>276848</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>96447</TotalAmt>
        <ProgramServicesAmt>72093</ProgramServicesAmt>
        <ManagementAndGeneralAmt>24354</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>4135001</TotalAmt>
        <ProgramServicesAmt>4135001</ProgramServicesAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>272933</TotalAmt>
        <ProgramServicesAmt>204014</ProgramServicesAmt>
        <ManagementAndGeneralAmt>68919</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>46731</TotalAmt>
        <ProgramServicesAmt>34931</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11800</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>OTHER COMMUNICATION EXP</Desc>
        <TotalAmt>975753</TotalAmt>
        <ProgramServicesAmt>729362</ProgramServicesAmt>
        <ManagementAndGeneralAmt>246391</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>JOURNAL/EDITORIAL</Desc>
        <TotalAmt>609449</TotalAmt>
        <ProgramServicesAmt>609449</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>STAFF DEVELOPMENT</Desc>
        <TotalAmt>230247</TotalAmt>
        <ProgramServicesAmt>172106</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58141</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BOARD/COMMITTEE EXPENSE</Desc>
        <TotalAmt>185034</TotalAmt>
        <ProgramServicesAmt>181473</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3561</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>870802</TotalAmt>
        <ProgramServicesAmt>506903</ProgramServicesAmt>
        <ManagementAndGeneralAmt>363899</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>17227897</TotalAmt>
        <ProgramServicesAmt>14188007</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3039890</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>2602648</BOYAmt>
        <EOYAmt>2187171</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>741395</BOYAmt>
        <EOYAmt>625004</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>1346131</BOYAmt>
        <EOYAmt>950871</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>307497</BOYAmt>
        <EOYAmt>502442</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>4578045</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>1771358</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>2967182</BOYAmt>
        <EOYAmt>2806687</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>15975031</BOYAmt>
        <EOYAmt>20165756</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>23939884</BOYAmt>
        <EOYAmt>27237931</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>1966626</BOYAmt>
        <EOYAmt>1422347</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>2078990</BOYAmt>
        <EOYAmt>1461285</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>7390</BOYAmt>
        <EOYAmt>7390</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>4053006</BOYAmt>
        <EOYAmt>2891022</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>19886878</BOYAmt>
        <EOYAmt>24346909</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>19886878</BOYAmt>
        <EOYAmt>24346909</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>23939884</BOYAmt>
        <EOYAmt>27237931</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1255864</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>3204167</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>210000</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>105000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>35000</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>40000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>25000</CurrentTaxYearAmt>
        <TotalAmt>415000</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>15903323</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4601894</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5787986</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>14193622</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>18779130</CurrentTaxYearAmt>
        <TotalAmt>59265955</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>16113323</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4706894</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5822986</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>14233622</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>18804130</CurrentTaxYearAmt>
        <TotalAmt>59680955</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>59680955</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>402812</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>398597</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>445058</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>499411</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>708757</CurrentTaxYearAmt>
        <TotalAmt>2454635</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>402812</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>398597</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>445058</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>499411</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>708757</CurrentTaxYearAmt>
        <TotalAmt>2454635</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
        <CurrentTaxYearMinus4YearsAmt>7372</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2381</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1500</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>602</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>11437</CurrentTaxYearAmt>
        <TotalAmt>23292</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus3YearsAmt>9243204</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>19494</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>127527</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4320</CurrentTaxYearAmt>
        <TotalAmt>9394545</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>16523507</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>14351076</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>6289038</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>14861162</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>19528644</CurrentTaxYearAmt>
        <TotalAmt>71553427</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.83410</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.83090</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.03430</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.03070</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>INSURANCE PROCEEDS - 2020 AMOUNT: $ 9,243,204. BAD DEBT RECOVERY - 2021 AMOUNT: $ 19,494. STRATEGIC SPONSORSHIP - 2022 AMOUNT: $ 15,000. WIRE TRANSFER FEE - 2022 AMOUNT: $ 18,773. 2023 AMOUNT: $ 4,320. REBATES AND COMMISSIONS - 2022 AMOUNT: $ 93,754.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>400000</OtherCostOrOtherBasisAmt>
        <BookValueAmt>400000</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>2579292</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>783366</DepreciationAmt>
        <BookValueAmt>1795926</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1598753</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>987992</DepreciationAmt>
        <BookValueAmt>610761</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>2806687</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>SECURITY DEPOSIT</Desc>
        <Amt>7390</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>7390</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>21610435</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>3204167</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>-77493</OtherRevenueAmt>
      <RevenueNotReportedAmt>3126674</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>18483761</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>18483761</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>17150404</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>17150404</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>77493</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>77493</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>17227897</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ISPOR IS EXEMPT FROM FEDERAL INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE (IRC). HOWEVER, INCOME FROM CERTAIN ACTIVITIES NOT DIRECTLY RELATED TO ISPOR'S TAX-EXEMPT PURPOSE IS SUBJECT TO TAXATION AS UNRELATED BUSINESS INCOME. ISPOR FOLLOWS THE INCOME TAX STANDARD FOR UNCERTAIN TAX POSITIONS. ISPOR BELIEVES THERE ARE NO UNCERTAIN TAX POSITIONS THAT ARE REQUIRED TO BE DISCLOSED IN THE CONSOLIDATED FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>INVESTMENT MANAGEMENT FEES -77,493.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>INVESTMENT MANAGEMENT FEES 77,493.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>ANNUAL EUROPEAN MEETING</SpecificServicesProvidedTxt>
        <RegionTotalExpendituresAmt>2337171</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>2337171</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>2337171</TotalSpentAmt>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
    </IRS990ScheduleF>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>1</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SUSAN CAPON</PersonNm>
        <TitleTxt>CHIEF OPERATING OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>254967</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>125536</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>19800</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>10505</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>410808</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LAURA PIZZI</PersonNm>
        <TitleTxt>CHIEF SCIENCE OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>264808</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>35250</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>18003</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>38878</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>356939</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>NANCY S BERG</PersonNm>
        <TitleTxt>CEO &amp; EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>257968</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15478</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>5466</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>278912</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ELIZABETH LANE</PersonNm>
        <TitleTxt>CHIEF MARKETING OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>196962</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>18500</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12928</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12599</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>240989</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JENNIFER OLSEN-CASILLAS</PersonNm>
        <TitleTxt>DIRECTOR, MEMBER ENGAGEMENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>188667</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>10483</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>11949</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22591</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>233690</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MICHELLE ROVNER</PersonNm>
        <TitleTxt>DIRECTOR, MARKETING</TitleTxt>
        <BaseCompensationFilingOrgAmt>173602</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>16640</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>11414</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22591</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>224247</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PAUL WONG</PersonNm>
        <TitleTxt>DIRECTOR, GLOBAL EVENTS</TitleTxt>
        <BaseCompensationFilingOrgAmt>172804</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>24960</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>11866</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>209630</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JILL CHEN</PersonNm>
        <TitleTxt>DIRECTOR, FINANCE AND ACCOUNTING</TitleTxt>
        <BaseCompensationFilingOrgAmt>149879</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>5438</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7981</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>34442</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>197740</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BONUSES WERE PART OF THE ANNUAL BUDGET WHICH WAS APPROVED BY THE BOARD. THESE AMOUNTS REPORTED ON SCHEDULE J, PART II, COLUMN B(II) WERE BASED UPON SEVERAL CRITERIA, SOME WHICH WERE PERFORMANCE-BASED AND SOME WHICH WERE CALCULATED BASED UPON PRE-SET FORMULAS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE HAS THE DUTIES AND AUTHORITY BETWEEN MEETINGS OF THE BOARD, IN PLACE OF THE BOARD, TO TAKE ACTION ON MATTERS CONSISTENT WITH THE GOALS OF THE SOCIETY. THE EXECUTIVE COMMITTEE IS COMPRISED OF THE OFFICERS OF THE SOCIETY: PRESIDENT, IMMEDIATE PAST PRESIDENT, PRESIDENT-ELECT, EXECUTIVE DIRECTOR (AS SECRETARY) AND TREASURER. THE EXECUTIVE DIRECTOR IS A VOTING MEMBER OF THE BOARD, EXCEPT ON THE MATTER OF THE EXECUTIVE DIRECTOR'S SALARY AND CONTRACT REVIEW AND DETERMINATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS FIVE TYPES OF MEMBERS AS FOLLOWS: MEMBER - ANY INDIVIDUAL WHO SUPPORTS THE OBJECTIVES OF THE SOCIETY AND IS WILLING TO CONTRIBUTE TO THE ACHIEVEMENT OF THOSE OBJECTIVES IS ELIGIBLE FOR MEMBERSHIP. STUDENT MEMBER - ANY INDIVIDUAL FORMALLY ENROLLED IN A PROGRAM OF STUDY WHICH INCLUDES ASPECTS OF HEALTH ECONOMICS OR HEALTH OUTCOMES RESEARCH IN THE STUDY CURRICULUM AND SUPPORTS THE MISSION OF THE SOCIETY IS ELIGIBLE FOR STUDENT MEMBERSHIP. STUDENT MEMBERS ARE NOT PERMITTED TO HOLD OFFICER OR DIRECTOR POSITIONS. FELLOW - ANY MEMBER WHO IS DEEMED TO HAVE MADE A MERITORIOUS CONTRIBUTION TO THE ADVANCEMENT OF HEALTH ECONOMICS AND/OR OUTCOMES RESEARCH AS DEFINED BY THE ISPOR BOARD. NEW PROFESSIONAL - ANY INDIVIDUAL WITH THREE YEARS OR LESS PROFESSIONAL EXPERIENCE IN HEALTH ECONOMICS OR OUTCOMES RESEARCH. RETIRED MEMBERS - ANY MEMBER WITH TEN OR MORE YEARS OF PAID ISPOR MEMBERSHIP AND WORKING LESS THAN HALF TIME (TWENTY OR FEWER HOURS PER WEEK).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS, STUDENT MEMBERS, FELLOWS, NEW PROFESSIONALS, AND RETIRED MEMBERS HAVE THE RIGHT TO VOTE FOR BOARD OFFICERS AND DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ISPOR FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. THE REVIEW OF THE FORM 990 BEFORE FILING IS DELEGATED TO THE CEO, EXECUTIVE DIRECTOR, AND DIRECTOR OF FINANCE BY THE BOARD OF DIRECTORS. THE COMPLETED FORM 990 IS AVAILABLE FOR REVIEW BY THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>TO INSURE COMPLIANCE WITH THE ORGANIZATION'S CONFLICT OF INTEREST POLICY, BOARD MEMBERS, OFFICERS AND EMPLOYEES AGREE TO COMPLY WITH THE POLICY BY COMPLETING AND SIGNING A CONFLICT OF INTEREST STATEMENT. EVERY YEAR THE BOARD HAS THE RESPONSIBILITY OF ENSURING COMPLIANCE WITH THE POLICY, ADMINISTERING THE ANNUAL QUESTIONNAIRE AND MAKING DECISIONS AS REQUIRED TO AVOID ACTUAL CONFLICT OF INTEREST. THE BOARD ALSO REVIEWS AND REVISES THIS POLICY AS NEEDED. IN THE EVENT OF AN ACTUAL CONFLICT OF INTEREST OR THE APPEARANCE OF A CONFLICT OF INTEREST, THE INTERESTED PARTY MUST DISCLOSE THE NATURE OF THE CONFLICT AND HE/SHE SHALL NOT BE PRESENT IN THE BOARD OR COMMITTEE DELIBERATIONS OR VOTE ON THE MATTER. COMPLETED CONFLICT OF INTEREST FORMS ARE INCLUDED ON BOARD AGENDAS, AND RECORDED IN THE BOARD MINUTES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE, EXCLUDING THE EXECUTIVE DIRECTOR, CONDUCTS AN ANNUAL REVIEW OF THE EXECUTIVE DIRECTOR'S PERFORMANCE INCLUDING ACCOMPLISHMENTS VERSUS PRE-SPECIFIED GOALS AS WELL AS THE PERFORMANCE OF THE ORGANIZATION. BENCHMARKING OF THE COMPENSATION OF THE EXECUTIVE DIRECTOR IS DETERMINED USING ASSOCIATION CHIEF STAFF EXECUTIVE COMPENSATION SURVEYS BY THE AMERICAN SOCIETY OF ASSOCIATION EXECUTIVES (ASAE). COMPENSATION OF THE EXECUTIVE DIRECTOR IS ALSO DETERMINED WITH THE USE OF COMPENSATION SURVEYS AND THE FORM 990 OF SIMILAR ORGANIZATIONS. THE EXECUTIVE COMMITTEE NEGOTIATES AN EMPLOYMENT AGREEMENT WITH THE EXECUTIVE DIRECTOR AND THEN DETERMINES THE EXECUTIVE DIRECTOR'S COMPENSATION, THROUGH A FORMAL VOTE IN PRIVATE SESSIONS, WITHOUT THE EXECUTIVE DIRECTOR'S PRESENCE. THE FINAL AGREEMENT AND SALARY DETERMINATION IS DOCUMENTED IN A TIMELY COMMUNICATION FROM THE PRESIDENT ON BEHALF OF THE EXECUTIVE COMMITTEE AUTHORIZING THE EXECUTIVE DIRECTOR'S COMPENSATION. THIS COMMUNICATION IS RETAINED WITH THE ISPOR PAYROLL RECORDS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ISPOR MAKES ITS FINANCIAL STATEMENTS, CONFLICT OF INTEREST POLICY AND GOVERNING DOCUMENTS AVAILABLE UPON WRITTEN REQUESTS SUBMITTED TO ISPOR'S ADDRESS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ISPOR GLOBAL LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>505 LAWRENCE SQUARE BLVD SOUTH</AddressLine1Txt>
          <CityNm>LAWRENCEVILLE</CityNm>
          <StateAbbreviationCd>NJ</StateAbbreviationCd>
          <ZIPCd>08648</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>MANAGMENT COMPANY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <TotalIncomeAmt>0</TotalIncomeAmt>
        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH INC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>