﻿<?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>2024-11-13T12:23:49-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>420714325</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>RSM US LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>920 5TH AVENUE SUITE 2800</AddressLine1Txt>
        <CityNm>SEATTLE</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98104</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>522317193</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THE AMERICAN ASSOCIATION OF</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>IMMUNOLOGISTS INC</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>AMER</BusinessNameControlTxt>
      <PhoneNum>3016347818</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1451 ROCKVILLE PIKE 650</AddressLine1Txt>
        <CityNm>ROCKVILLE</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20852</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>SUSAN MEDICK CPA</PersonNm>
      <PersonTitleTxt>CFOO</PersonTitleTxt>
      <PhoneNum>3016347818</PhoneNum>
      <SignatureDt>2024-11-12</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>SUE ROBISON</PreparerPersonNm>
      <PTIN>P00560072</PTIN>
      <PhoneNum>2062814444</PhoneNum>
      <PreparationDt>2024-11-12</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>LORETTA DOAN PHD</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>1451 ROCKVILLE PIKE 650</AddressLine1Txt>
        <CityNm>ROCKVILLE</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20852</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>32076263</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.AAI.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2001</FormationYr>
      <LegalDomicileStateCd>MD</LegalDomicileStateCd>
      <ActivityOrMissionDesc>AAI'S MISSION IS TO IMPROVE GLOBAL HEALTH AND WELL-BEING BY ADVANCING IMMUNOLOGICAL SCIENCE AND SUPPORTING SCIENTISTS THROUGH KNOWLEDGE DISSEMINATION, COMMUNITY BUILDING, ADVOCACY, AND PUBLIC OUTREACH.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>8</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>8</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>36</TotalEmployeeCnt>
      <TotalVolunteersCnt>183</TotalVolunteersCnt>
      <TotalGrossUBIAmt>252410</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>133350</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>53570</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>39571</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>9586312</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>9931975</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>185806</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>2122838</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>96788</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>123266</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>9922476</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>12217650</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>2157852</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>1946853</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>5155201</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>4906877</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>5904508</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>6248533</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>13217561</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>13102263</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-3295085</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-884613</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>75684116</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>82572275</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>7105449</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>6527952</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>68578667</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>76044323</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE AMERICAN ASSOCIATION OF IMMUNOLOGISTS (AAI) IS AN INTERNATIONAL ASSOCIATION REPRESENTING PROFESSIONALLY TRAINED SCIENTISTS WHO CONDUCT BASIC AND CLINICAL RESEARCH ON THE BIOLOGY OF THE IMMUNE SYSTEM. AAI IS DEDICATED TO ADVANCING THE KNOWLEDGE OF IMMUNOLOGY, FOSTERING THE INTERCHANGE OF IDEAS AND INFOMRATION AMONG INVESTIGATORS, AND ADDRESSING THE POTENTIAL INTEGRATION OF IMMUNOLOGIC PRINCIPLES INTO CLINICAL PRACTICE. AAI SERVES ITS MEMBERS BY PROVIDING A CENTER FOR THE DISSEMINATION OF INFORMATION RELEVANT TO THE FIELD AND ITS PRACTICES SUCH AS EDUCATIONAL AND PROFESSIONAL OPPORTUNITIES, SCIENTIFIC MEETINGS, MEMBERSHIP-DERIVED ISSUES AND OPINIONS, AND IMPORTANT SOCIAL AND POLITICAL MATTERS. AAI OWNS AND PUBLISHES THE JOURNAL OF IMMUNOLOGY-THE LARGEST AND MOST HIGHLY CITED JOURNAL IN THE FIELD.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>2861628</ExpenseAmt>
      <RevenueAmt>2108679</RevenueAmt>
      <Desc>ANNUAL MEETING: EACH YEAR AAI HOLDS AN ANNUAL MEETING WHICH DRAWS THOUSANDS OF ATTENDEES AND HUNDREDS OF EXHIBITORS. ATTENDEES INCLUDE BOTH AAI MEMBERS AND NON-MEMBERS WHO HAVE AN INTEREST IN IMMUNOLOGY. DURING THE ANNUAL MEETING, AAI OFFERS A VARIETY OF LECTURES, SEMINARS, AND SYMPOSIA ON SCIENTIFIC TOPICS RELATED TO THE FIELD OF IMMUNOLOGY, WHICH ARE AVAILABLE TO ALL ATTENDEES.MUCH OF THE CONTENT OF THE ANNUAL MEETING IS FOCUSED ON THE NEEDS AND INTERESTS OF STUDENTS AND TRAINEES IN IMMUNOLOGY. TRAINEES MAY ATTEND THE MEETING AT A SIGNIFICANTLY REDUCED COSTS, AND THEY ARE ENCOURAGED TO PURSUE SPEAKING OPPORTUNITIES AT THE MEETING AND TO ATTEND PROGRAMS AND SEMINARS GEARED TOWARD IMMUNOLOGY STUDENTS AND EARLY CAREER IMMUNOLOGISTS. INCLUDED AMONG THE WORKSHOPS AT THE ANNUAL MEETING ARE PROGRAMS ON GRANT WRITING, FUNDING OPPORTUNITIES FOR IMMUNOLOGISTS, CAREERS IN SCIENCE, AND PROFESSIONAL CIRCUMSTANCES AND CHALLENGES UNIQUE TO WOMEN AND UNDERREPRESENTED MINORITIES IN SCIENCE AND ACADEMICS. AT THE ANNUAL MEETING, AAI ALSO SPONSORS A CAREER RESOURCE PROGRAM FOR ALL REGISTRANTS. THIS PROGRAM PROVIDES ATTENDEES THE OPPORTUNITY TO POST THEIR CVS, LEARN ABOUT JOB OPPORTUNITIES, AND ATTEND SEMINARS ON INTERVIEWING FOR JOBS AND PREPARING RESUMES.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>2574550</ExpenseAmt>
        <GrantAmt>1946853</GrantAmt>
        <Desc>AWARDS:THE AMERICAN ASSOCIATION OF IMMUNOLOGISTS ANNUALLY HONORS THE RESEARCH ACHIEVEMENTS AND PROFESSIONAL PROMISE OF OVER 1,000 SCIENTISTS THROUGH FELLOWSHIPS, CAREER AWARDS, AND TRAVEL GRANTS. AAI FELLOWSHIPS PROVIDE REGULAR AND TRAINEE MEMBERS WITH CAREER ADVANCEMENT OPPORTUNITIES THROUGH PROGRAMS SUPPORTING TRAINEES' SALARIES AND PUBLIC POLICY EDUCATION. AAI CAREER AWARDS HONOR INDIVIDUALS FOR OUTSTANDING RESEARCH AND CAREER ACHIEVEMENTS. AAI MEMBERS ARE ELIGIBLE FOR THESE CAREER AWARDS, WHICH ARE AMONG THE LEADING PROFESSIONAL HONORS PRESENTED ANNUALLY TO IMMUNOLOGISTS. AAI TRAVEL AWARDS AND GRANTS RECOGNIZE THE PROMISE AND BOLSTER THE PROFESSIONAL DEVELOPMENT OF INVESTIGATORS OF ALL CAREER STAGES BY ASSISTING THEM WITH TRAVEL TO THE AAI ANNUAL MEETING AND TRAVEL TO LEARN TECHNIQUES. IN ITS COMMITMENT TO THE CULTIVATION OF CAREER OPPORTUNITIES FOR PROMISING YOUNG SCIENTISTS, AAI ALSO PROVIDES SUPPORT FOR OVER 100 TRAVEL AWARDS AT SELECTED OTHER IMMUNOLOGY CONFERENCES.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>2354824</ExpenseAmt>
        <RevenueAmt>734518</RevenueAmt>
        <Desc>COMMITTEES AND MEMBER SERVICES:COMMITTEE &amp; MEMBER SERVICES CONSISTS OF ALL OF THE VARIOUS MEMBER COMMITTEES, THAT ARE NOT COUNCIL COMMITTEES, AS WELL AS THE VARIOUS DEPARTMENTS OF THE ASSOCIATION. MEMBER COMMITTEES INCLUDE EDUCATION, MINORITY AFFAIRS, COMMITTEE ON STATUS OF WOMEN, PUBLIC AFFAIRS, AND VETERINARY IMMUNOLOGY. THESE COMMITTEES WORK ON SPONSORING EDUCATIONAL SESSIONS AT THE ANNUAL MEETING. THE DEPARTMENTS THAT FALL UNDER THIS CATEGORY ARE MEMBERSHIP, PUBLIC AFFAIRS, HISTORY &amp; ARCHIVES, AND COMMUNICATIONS.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>2096130</ExpenseAmt>
        <RevenueAmt>4703353</RevenueAmt>
        <Desc>THE JOURNAL OF IMMUNOLOGY</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>471725</ExpenseAmt>
        <RevenueAmt>106865</RevenueAmt>
        <Desc>IMMUNOHORIZONS</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>408222</ExpenseAmt>
        <RevenueAmt>513025</RevenueAmt>
        <Desc>ADVANCED COURSE</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>347524</ExpenseAmt>
        <RevenueAmt>483840</RevenueAmt>
        <Desc>INTRODUCTORY COURSE</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>39073</ExpenseAmt>
        <Desc>COLLEGE AND HIGH SCHOOL TEACHERS</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>3362674</TotalOtherProgSrvcExpenseAmt>
      <TotalOtherProgSrvcRevenueAmt>5807083</TotalOtherProgSrvcRevenueAmt>
      <TotalProgramServiceExpensesAmt>11153676</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039600001">0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentId="RetDoc1039600001">1</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039600001">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">1</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">1</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd referenceDocumentId="RetDoc1040500001">1</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd referenceDocumentId="RetDoc1040500001">0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="RetDoc1040500001">1</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">1</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">1</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>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>58</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>36</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>8</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>8</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>1</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MD</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>SUSAN MEDICK CPA CFOO</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3016347818</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1451 ROCKVILLE PIKE 650</AddressLine1Txt>
          <CityNm>ROCKVILLE</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20852</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>LORETTA DOAN PHD</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>392192</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>66490</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAUREN GROSS JD</PersonNm>
        <TitleTxt>CHIEF POLICY &amp; PROGRAM OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>325473</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>29670</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>M MICHELE HOGAN PHD</PersonNm>
        <TitleTxt>FORMER CEO</TitleTxt>
        <AverageHoursPerWeekRt>0.00</AverageHoursPerWeekRt>
        <FormerOfcrDirectorTrusteeInd>X</FormerOfcrDirectorTrusteeInd>
        <ReportableCompFromOrgAmt>251500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CATHERINE WATTENBERG</PersonNm>
        <TitleTxt>DIRECTOR OF PUBLICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>162839</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>64081</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARY LITZINGER PHD</PersonNm>
        <TitleTxt>DIR EDUCATION &amp; CAREER DEV</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>172461</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>37260</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BETHANY COULTER</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>174311</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>17434</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DALE BENGSTON</PersonNm>
        <TitleTxt>DIRECTOR OF IT</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>163662</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>16747</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN MEDICK</PersonNm>
        <TitleTxt>CHIEF FINANCE &amp; OPERATIONS OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>147269</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>23677</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BRYNA BURRELL</PersonNm>
        <TitleTxt>SENIOR SCIENTIST</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>137217</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>32779</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARIA ZAVARELLO CPA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFF. - UNTIL 4/2023</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>148610</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>7828</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ULRICH VON ANDRIAN MD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>300</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AVERY AUGUST PHD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>300</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN JAMESON PHD</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>300</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN M KAECH PHD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARIA-LUISA ALEGRE MD PHD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AKIKO IWASAKI PHD</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOAN GOVERMAN PHD</PersonNm>
        <TitleTxt>SECRETARY-TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK M DAVIS PHD</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GARY A KORETZKY MD PHD</PersonNm>
        <TitleTxt>PAST PRESIDENT - UNTIL 6/2023</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>2076434</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>295966</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>18</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>1</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FASEB</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>6120 EXECUTIVE BLVD 230</AddressLine1Txt>
            <CityNm>ROCKVILLE</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20852</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>HR AND PAYROLL SERVICES</ServicesDesc>
        <CompensationAmt>1154863</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>KNOWLEDGEWORKS GLOBAL LTD</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>410 HIGHWAY 25 S</AddressLine1Txt>
            <CityNm>BRAINERD</CityNm>
            <StateAbbreviationCd>MN</StateAbbreviationCd>
            <ZIPCd>56401</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PUBLICATION SERVICES</ServicesDesc>
        <CompensationAmt>427168</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>JPA HEALTH</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1101 CONNECTICUT AVE 200</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20036</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSULTING SERVICES</ServicesDesc>
        <CompensationAmt>371833</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>PROJECTION VIDEO SERVICES INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5803 ROLLING ROAD 200</AddressLine1Txt>
            <CityNm>SPRINGFILED</CityNm>
            <StateAbbreviationCd>VA</StateAbbreviationCd>
            <ZIPCd>22152</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ANNUAL MEETING EQUIPMENT RENTAL AV</ServicesDesc>
        <CompensationAmt>277493</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ARAMARK SPORTS &amp; ENTERTAINMENT</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>801 MT VERNON PL NW</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20001</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ANNUAL MEETING EVENT F&amp;B</ServicesDesc>
        <CompensationAmt>207625</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>14</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>39571</AllOtherContributionsAmt>
      <TotalContributionsAmt>39571</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>JOURNAL OF IMMUNOLOGY</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>4889508</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4703353</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>186155</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETING</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>3204219</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2108679</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>1095540</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>IMMUNOLOGY COURSES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>996865</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>996865</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>724393</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>724393</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>IMMUNOHORIZONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>106865</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>106865</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>10125</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>10125</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>9931975</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>921648</TotalRevenueColumnAmt>
        <ExclusionAmt>921648</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>21059803</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>19858613</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>1201190</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>1201190</TotalRevenueColumnAmt>
        <ExclusionAmt>1201190</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>56100</TotalRevenueColumnAmt>
        <ExclusionAmt>56100</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>WEBSITE JOB POSTING</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>48395</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>48395</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>ADVERTISING</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>17860</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>17860</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <MiscellaneousRevenueGrp>
        <TotalRevenueColumnAmt>911</TotalRevenueColumnAmt>
        <ExclusionAmt>911</ExclusionAmt>
      </MiscellaneousRevenueGrp>
      <OtherRevenueTotalAmt>123266</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>12217650</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8650280</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>252410</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>3275389</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>40675</TotalAmt>
        <ProgramServicesAmt>40675</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>1880690</TotalAmt>
        <ProgramServicesAmt>1880690</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>25488</TotalAmt>
        <ProgramServicesAmt>25488</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1136357</TotalAmt>
        <ProgramServicesAmt>911155</ProgramServicesAmt>
        <ManagementAndGeneralAmt>225202</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>2615318</TotalAmt>
        <ProgramServicesAmt>2097017</ProgramServicesAmt>
        <ManagementAndGeneralAmt>518301</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>272182</TotalAmt>
        <ProgramServicesAmt>218241</ProgramServicesAmt>
        <ManagementAndGeneralAmt>53941</ManagementAndGeneralAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>599780</TotalAmt>
        <ProgramServicesAmt>480916</ProgramServicesAmt>
        <ManagementAndGeneralAmt>118864</ManagementAndGeneralAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>283240</TotalAmt>
        <ProgramServicesAmt>227108</ProgramServicesAmt>
        <ManagementAndGeneralAmt>56132</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>47071</TotalAmt>
        <ProgramServicesAmt>41263</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5808</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>43759</TotalAmt>
        <ProgramServicesAmt>38360</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5399</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>575877</TotalAmt>
        <ManagementAndGeneralAmt>575877</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>865778</TotalAmt>
        <ProgramServicesAmt>758957</ProgramServicesAmt>
        <ManagementAndGeneralAmt>106821</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>132169</TotalAmt>
        <ProgramServicesAmt>132169</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>189247</TotalAmt>
        <ProgramServicesAmt>172176</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17071</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>397737</TotalAmt>
        <ProgramServicesAmt>333772</ProgramServicesAmt>
        <ManagementAndGeneralAmt>63965</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>448775</TotalAmt>
        <ProgramServicesAmt>386419</ProgramServicesAmt>
        <ManagementAndGeneralAmt>62356</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>160035</TotalAmt>
        <ProgramServicesAmt>146363</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13672</ManagementAndGeneralAmt>
      </TravelGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>198594</TotalAmt>
        <ProgramServicesAmt>152193</ProgramServicesAmt>
        <ManagementAndGeneralAmt>46401</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>75817</TotalAmt>
        <ProgramServicesAmt>62195</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13622</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>INCOME TAX</Desc>
        <TotalAmt>7066</TotalAmt>
        <ManagementAndGeneralAmt>7066</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OTHER DIRECT COSTS</Desc>
        <TotalAmt>1648349</TotalAmt>
        <ProgramServicesAmt>1616735</ProgramServicesAmt>
        <ManagementAndGeneralAmt>31614</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PUBLICATION SALES</Desc>
        <TotalAmt>1098666</TotalAmt>
        <ProgramServicesAmt>1098666</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK &amp; CREDIT CARD FEES</Desc>
        <TotalAmt>202009</TotalAmt>
        <ProgramServicesAmt>181679</ProgramServicesAmt>
        <ManagementAndGeneralAmt>20330</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>157584</TotalAmt>
        <ProgramServicesAmt>151439</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6145</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>13102263</TotalAmt>
        <ProgramServicesAmt>11153676</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1948587</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>2731720</BOYAmt>
        <EOYAmt>2671759</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>1561534</BOYAmt>
        <EOYAmt>1276446</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>238332</BOYAmt>
        <EOYAmt>164111</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>297912</BOYAmt>
        <EOYAmt>313984</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>2040085</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>1433183</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>880173</BOYAmt>
        <EOYAmt>606902</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>60022228</BOYAmt>
        <EOYAmt>67314176</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>8358769</BOYAmt>
        <EOYAmt>8749139</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>1593448</BOYAmt>
        <EOYAmt>1475758</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>75684116</BOYAmt>
        <EOYAmt>82572275</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>1451228</BOYAmt>
        <EOYAmt>1305690</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>3495685</BOYAmt>
        <EOYAmt>3339608</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>2158536</BOYAmt>
        <EOYAmt>1882654</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>7105449</BOYAmt>
        <EOYAmt>6527952</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>68477029</BOYAmt>
        <EOYAmt>75952435</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>101638</BOYAmt>
        <EOYAmt>91888</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>68578667</BOYAmt>
        <EOYAmt>76044323</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>75684116</BOYAmt>
        <EOYAmt>82572275</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-884613</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>8350269</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>29383</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>35990</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>49110</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>53570</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>39571</CurrentTaxYearAmt>
        <TotalAmt>207624</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>9328063</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>7649110</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>8226404</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>8405267</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8650280</CurrentTaxYearAmt>
        <TotalAmt>42259124</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus4YearsAmt>1013574</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5000</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>243520</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>846190</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1095540</CurrentTaxYearAmt>
        <TotalAmt>3203824</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>10371020</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>7690100</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>8519034</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>9305027</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9785391</CurrentTaxYearAmt>
        <TotalAmt>45670572</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus4YearsAmt>12048</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>7809</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>8555</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6810</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>7050</CurrentTaxYearAmt>
        <TotalAmt>42272</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <CurrentTaxYearMinus4YearsAmt>94357</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus1YearAmt>96235</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>110926</CurrentTaxYearAmt>
        <TotalAmt>301518</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>106405</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>7809</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>8555</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>103045</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>117976</CurrentTaxYearAmt>
        <TotalAmt>343790</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>45326782</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>823247</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>794176</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>910016</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>767862</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>921648</CurrentTaxYearAmt>
        <TotalAmt>4216949</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <Post1975UBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>166052</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>158941</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>208392</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>209940</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>133350</CurrentTaxYearAmt>
        <TotalAmt>876675</TotalAmt>
      </Post1975UBTIGrp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>989299</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>953117</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1118408</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>977802</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1054998</CurrentTaxYearAmt>
        <TotalAmt>5093624</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>3978</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>35745</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>67</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>23713</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>57011</CurrentTaxYearAmt>
        <TotalAmt>120514</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>11364297</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8678962</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9637509</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10306542</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>10897400</CurrentTaxYearAmt>
        <TotalAmt>50884710</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.89080</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.89310</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.10010</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.09910</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME - 2019 AMOUNT: $ 3,978. 2020 AMOUNT: $ 8,701. 2021 AMOUNT: $ 67. 2022 AMOUNT: $ 738. 2023 AMOUNT: $ 56,100. BAD DEBT RECOVERY - 2020 AMOUNT: $ 27,044. 2022 AMOUNT: $ 22,975. 2023 AMOUNT: $ 911.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleC documentId="RetDoc1039600001">
      <TotalGrassrootsLobbyingGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalGrassrootsLobbyingGrp>
      <TotalDirectLobbyingGrp>
        <FilingOrganizationsTotalAmt>86488</FilingOrganizationsTotalAmt>
      </TotalDirectLobbyingGrp>
      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>86488</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>12310069</FilingOrganizationsTotalAmt>
      </OtherExemptPurposeExpendGrp>
      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>12396557</FilingOrganizationsTotalAmt>
      </TotalExemptPurposeExpendGrp>
      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>769828</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>192457</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyngGrassrootMnsNonTxGrp>
      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyExpendMnsLbbyngNonTxGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearMinus3Amt>606071</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>621033</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>769710</CurrentYearMinus1Amt>
        <CurrentYearAmt>769828</CurrentYearAmt>
        <TotalAmt>2766642</TotalAmt>
      </AvgLobbyingNontaxableAmountGrp>
      <LobbyingCeilingAmt>4149963</LobbyingCeilingAmt>
      <AvgTotalLobbyingExpendGrp>
        <CurrentYearMinus3Amt>66236</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>50383</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>38998</CurrentYearMinus1Amt>
        <CurrentYearAmt>86488</CurrentYearAmt>
        <TotalAmt>242105</TotalAmt>
      </AvgTotalLobbyingExpendGrp>
      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>151518</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>155258</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>192428</CurrentYearMinus1Amt>
        <CurrentYearAmt>192457</CurrentYearAmt>
        <TotalAmt>691661</TotalAmt>
      </AvgGrassrootsNontaxableGrp>
      <GrassrootsCeilingAmt>1037492</GrassrootsCeilingAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>951022</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>676084</DepreciationAmt>
        <BookValueAmt>274938</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>837169</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>505921</DepreciationAmt>
        <BookValueAmt>331248</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>251894</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>251178</DepreciationAmt>
        <BookValueAmt>716</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>606902</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>HEDGE FUNDS</Desc>
        <BookValueAmt>8749139</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>8749139</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED COMPENSATION PLAN</Desc>
        <Amt>610681</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE OBLIGATION</Desc>
        <Amt>6289</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>LEASE LIABILITY, NET</Desc>
        <Amt>1265684</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>1882654</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>19993032</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>8350270</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>1900</DonatedServicesAndUseFcltsAmt>
      <RevenueNotReportedAmt>8352170</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>11640862</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>575877</InvestmentExpensesNotIncldAmt>
      <OtherRevenuesNotIncludedAmt>911</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>576788</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>12217650</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>12527375</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>1900</DonatedServicesUseFcltsAmt>
      <OtherExpensesIncludedAmt>-911</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>989</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>12526386</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>575877</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>575877</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>13102263</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>AAI IS ORGANIZED AS A NONPROFIT CORPORATION AND HAS BEEN RECOGNIZED BY THE INTERNAL REVENUE SERVICE (IRS) AS EXEMPT FROM FEDERAL INCOME TAXES UNDER INTERNAL REVENUE CODE (IRC) SECTION 501(A) AS AN ORGANIZATION DESCRIBED IN IRC SECTION 501(C)(3), AND HAS BEEN DETERMINED NOT TO BE A PRIVATE FOUNDATION UNDER IRC SECTION 509(A)(2). AAI IS ANNUALLY REQUIRED TO FILE A RETURN OF ORGANIZATION EXEMPT FROM INCOME TAX (FORM 990) WITH THE IRS. IN ADDITION, AAI IS SUBJECT TO INCOME TAX ON NET INCOME THAT IS DERIVED FROM BUSINESS ACTIVITIES THAT ARE UNRELATED TO ITS EXEMPT PURPOSE. AAI RECEIVES UNRELATED BUSINESS INCOME FROM THE SALE OF ADVERTISING AND INVESTMENTS IN HEDGE FUNDS. AAI IS SUBJECT TO UNRELATED BUSINESS INCOME TAX AND HAS FILED AN EXEMPT ORGANIZATION BUSINESS INCOME TAX RETURN (FORM 990-T) WITH THE IRS. DURING THE YEAR ENDED DECEMBER 31, 2023, AAI GENERATED $204,015 IN GROSS TAXABLE UNRELATED BUSINESS INCOME. THE INCOME TAX EXPENSE ASSOCIATED WITH THE UNRELATED BUSINESS INCOME WAS $7,066 FOR THE YEAR ENDED DECEMBER 31, 2023, AND HAS BEEN RECORDED IN THE ACCOMPANYING FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>BAD DEBT RECOVERY REPORTED IN PART VIII, LINE 11 911.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>BAD DEBT RECOVERY REPORTED IN PART VIII, LINE 11 -911.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>CENTRAL AMERICA AND THE CARIBBEAN</RegionTxt>
        <TypeOfActivitiesConductedTxt>INVESTMENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>2344964</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>5979</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>5979</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>3690</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>6415</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>NORTH AMERICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>3425</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>2370452</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>2370452</TotalSpentAmt>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS FOR SCIENTIFIC COURSE</TypeOfAssistanceTxt>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <NonCashAssistanceAmt>3690</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>FREE LODGING FOR COURSE ATTENDANCE</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>STATED HOTEL FEE</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS FOR SCIENTIFIC COURSE</TypeOfAssistanceTxt>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <NonCashAssistanceAmt>5979</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>FREE LODGING FOR COURSE ATTENDANCE</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>STATED HOTEL FEE</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS FOR SCIENTIFIC COURSE</TypeOfAssistanceTxt>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <NonCashAssistanceAmt>6415</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>FREE LODGING FOR COURSE ATTENDANCE</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>STATED HOTEL FEE</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS FOR SCIENTIFIC COURSE</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <NonCashAssistanceAmt>5979</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>FREE LODGING FOR COURSE ATTENDANCE</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>STATED HOTEL FEE</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS FOR SCIENTIFIC COURSE</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <NonCashAssistanceAmt>3425</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>FREE LODGING FOR COURSE ATTENDANCE</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>STATED HOTEL FEE</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AWARD WAS FOR RECIPIENTS TO ATTEND A CONFERENCE. AAI WAS ABLE TO VERIFY THE RECIPIENTS' REGISTRATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AUTUMN IMMUNOLOGY CONFERENCE INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 70371</AddressLine1Txt>
          <CityNm>LOUISVILLE</CityNm>
          <StateAbbreviationCd>KY</StateAbbreviationCd>
          <ZIPCd>40270</ZIPCd>
        </USAddress>
        <RecipientEIN>205964691</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>7000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>OUTREACH PROGRAM AWARD SUPPORT FOR YOUNG INVESTIGATORS FOR ABSTRACT AWARDS, PRESENTATION AWARDS AND SPONSORSHIP FOR MEET THE SPEAKER EVENT.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LIFETIME ACHIEVEMENT AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1419</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>DISTINGUISHED SERVICE AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1569</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MINORITY SCIENTIST TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>48</RecipientCnt>
        <CashGrantAmt>48754</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BD BIOSCIENCES INVESTIGATOR AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>6339</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>THERMO FISHER MERITORIOUS CAREER AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>11870</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>THERMO FISHER TRAINEE ACHIEVEMENT AWARDS</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>12765</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>EARLY CAREER FACULTY TRAVEL GRANTS</GrantTypeTxt>
        <RecipientCnt>60</RecipientCnt>
        <CashGrantAmt>72950</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAINEE POSTER AWARDS</GrantTypeTxt>
        <RecipientCnt>84</RecipientCnt>
        <CashGrantAmt>25200</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAINEE ABSTRACT AWARDS</GrantTypeTxt>
        <RecipientCnt>316</RecipientCnt>
        <CashGrantAmt>158000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STEINMAN AWARD FOR HUMAN IMMUNOLOGY RESEARCH</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>6978</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CHAMBERS-THERMO FISHER SCIENTIFIC MEMORIAL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LABORATORY TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>69</RecipientCnt>
        <CashGrantAmt>83245</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>UNDERGRADUATE FACULTY TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>21</RecipientCnt>
        <CashGrantAmt>22638</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CAREER IN IMMUNOLOGY FELLOWSHIPS</GrantTypeTxt>
        <RecipientCnt>26</RecipientCnt>
        <CashGrantAmt>660328</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAVEL FOR TECHNIQUES AWARD</GrantTypeTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>10788</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>YOUNG SCHOLAR TRAVEL AWARD</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2771</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FELLOWSHIPS FOR CAREER RE-ENTRY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>63476</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>INTERSECT FELLOWSHIPS FOR COMPUTATIONAL SCIENTISTS &amp; IMMUNOLOGISTS</GrantTypeTxt>
        <RecipientCnt>9</RecipientCnt>
        <CashGrantAmt>514616</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PFIZER-SHOWELL TRAVEL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LUSTGARTEN-THERMO FISHER SCIENTIFIC MEMORIAL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1250</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LEFRANCOIS-BIOLEGEND MEMORIAL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BIOLEGEND HERZENBERG AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>VANGUARD LECTURE AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>7200</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>IUIS TRAVEL GRANTS TO INDIVIDUALS</GrantTypeTxt>
        <RecipientCnt>56</RecipientCnt>
        <CashGrantAmt>139802</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ASPIRE AWARDS</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>17757</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>HIGH SCHOOL TEACHERS AWARD TRAVEL</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2475</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS AND AWARDS MADE INSIDE THE UNITED STATES ARE FOR PAST SCIENTIFIC RESEARCH EXCELLENCE AND REQUIRE A LECTURE AND ATTENDANCE AT THE ANNUAL SCIENTIFIC MEETING. OTHER GRANTS AND AWARDS REQUIRE A SELECTED ABSTRACT PRESENTATION AND/OR TRAVEL TO THE ANNUAL SCIENTIFIC MEETING OR SUPERVISED PERFORMANCE IN A LABORATORY SETTING.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</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>LORETTA DOAN PHD</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>390225</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1967</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>33000</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>33490</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>458682</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LAUREN GROSS JD</PersonNm>
        <TitleTxt>CHIEF POLICY &amp; PROGRAM OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>284100</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>32000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>9373</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>28410</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1260</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>355143</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>M MICHELE HOGAN PHD</PersonNm>
        <TitleTxt>FORMER CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>251500</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>251500</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CATHERINE WATTENBERG</PersonNm>
        <TitleTxt>DIRECTOR OF PUBLICATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>134826</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>25000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>3013</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14349</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>49732</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>226920</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARY LITZINGER PHD</PersonNm>
        <TitleTxt>DIR EDUCATION &amp; CAREER DEV</TitleTxt>
        <BaseCompensationFilingOrgAmt>149729</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>22000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>732</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15215</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22045</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>209721</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BETHANY COULTER</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>158099</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>14000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>2212</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15957</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1477</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>191745</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DALE BENGSTON</PersonNm>
        <TitleTxt>DIRECTOR OF IT</TitleTxt>
        <BaseCompensationFilingOrgAmt>160256</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>3406</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16026</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>721</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>180409</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SUSAN MEDICK</PersonNm>
        <TitleTxt>CHIEF FINANCE &amp; OPERATIONS OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>145883</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1386</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14500</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>9177</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>170946</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BRYNA BURRELL</PersonNm>
        <TitleTxt>SENIOR SCIENTIST</TitleTxt>
        <BaseCompensationFilingOrgAmt>136777</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>440</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13880</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>18899</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>169996</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARIA ZAVARELLO CPA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFF. - UNTIL 4/2023</TitleTxt>
        <BaseCompensationFilingOrgAmt>97922</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>12000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>38688</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7280</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>548</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>156438</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>M. MICHELE HOGAN RECEIVED A SEVERANCE PAYMENT IN THE AMOUNT OF $251,500 AND MARIA ZAVARELLO RECEIVED A SEVERANCE PAYMENT IN THE AMOUNT OF $36,400. THESE AMOUNTS ARE INCLUDED IN SCHEDULE J, PART II, COLUMN B(III).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>EMPLOYEES RECEIVED MERIT-BASED BONUSES. THE COUNCIL WANTED TO THANK CERTAIN STAFF MEMBERS FOR COVERING THE RESPONSIBILITIES OF THE CEO ROLE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>AAI HAS FIVE CLASSES OF MEMBERSHIP. THEY ARE: REGULAR, ASSOCIATE, HONORARY, TRAINEE (GRADUATE STUDENT, POSTDOCTORAL, YOUNG PROFESSIONAL &amp; UNDERGRADUATE) AND EMERITUS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>REGULAR AND EMERITUS MEMBERS OF AAI ANNUALLY ELECT THE OFFICERS AND AT LEAST ONE NEW COUNCILOR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>REGULAR AND EMERITUS MEMBERS OF AAI HAVE THE AUTHORITY TO APPROVE CERTAIN RECOMMENDATIONS MADE BY THE COUNCIL (BOD), SUCH AS CHANGES IN ANNUAL DUES AND AMENDMENTS TO THE BYLAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL COUNCIL MEMBERS ARE SENT A LINK TO THE FORM 990 FOR THEIR REVIEW. COUNCIL MEMBERS ARE INSTRUCTED TO SEND THEIR COMMENTS AND QUESTIONS TO THE CFOO PRIOR TO AAI FILING THE FORM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ANNUALLY THE AAI COUNCIL, SENIOR AAI STAFF, AND KEY COMMITTEE CHAIRPERSONS AND MEMBERS COMPLETE THE CONFLICT-OF-INTEREST STATEMENT, WHICH IS AVAILABLE TO ALL COUNCIL MEMBERS AND THE CHIEF EXECUTIVE OFFICER. IF A CONFLICT OR PERCEIVED CONFLICT ARISES, THE APPROPRIATE PERSON IS RECUSED FROM DELIBERATION AND VOTING, AND THE MINUTES OF THE MEETING ALSO REFLECT THAT ACTION. ADDITIONALLY, THE CHIEF EXECUTIVE OFFICER KEEPS ABREAST OF THE ACTIVITIES OF AAI, AND QUESTIONS ANY POTENTIAL CONFLICT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS ARE NOT COMPENSATED FOR THEIR SERVICE AS COUNCILORS OR OFFICERS. THE COUNCIL (BOD) MAINTAINS AN EMPLOYMENT CONTRACT WITH THE CEO AND ANNUALLY, AT ITS FALL MEETING, DETERMINES THE COMPENSATION OF THE CEO FOR THE SUBSEQUENT YEAR. AN EVALUATION OF THE CEO'S PERFORMANCE IS COMPLETED BY ALL COUNCIL MEMBERS AND THE CEO'S DIRECT REPORTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BYLAWS OF AAI ARE AVAILABLE ON THE AAI WEBSITE AND ARE PROVIDED IN HARD COPY AS REQUESTED. THE FORM 990 FINANCIAL STATEMENTS ARE ON THIRD-PARTY WEBSITES AND ARE PROVIDED IN HARD COPY AS REQUESTED. DOCUMENTS OPEN TO PUBLIC INSPECTION ARE AVAILABLE UPON REQUEST FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN SECTION 6104(D). THE CONFLICT-OF-INTEREST STATEMENTS OF EACH AFFECTED MEMBER ARE NOT PUBLIC DOCUMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>