<?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="2021v4.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2022-11-14T10:58:10-06:00</ReturnTs>
    <TaxPeriodEndDt>2021-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>420714325</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>RSM US LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>230 N ELM ST STE 1100</AddressLine1Txt>
        <CityNm>GREENSBORO</CityNm>
        <StateAbbreviationCd>NC</StateAbbreviationCd>
        <ZIPCd>27401</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2021-01-01</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 STE650</AddressLine1Txt>
        <CityNm>ROCKVILLE</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20852</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>LAUREN G GROSS JD</PersonNm>
      <PersonTitleTxt>CHAIR, INTERIM LEADERSHIP TEAM</PersonTitleTxt>
      <PhoneNum>3016347818</PhoneNum>
      <SignatureDt>2022-11-12</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>LAUREN</PersonFirstNm>
        <PersonLastNm>GROSS JD</PersonLastNm>
      </PersonFullName>
      <SSN>XXX-XX-XXXX</SSN>
    </SigningOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>AMANDA E WATERHOUSE</PreparerPersonNm>
      <PTIN>P02014004</PTIN>
      <PhoneNum>3362724551</PhoneNum>
      <PreparationDt>2022-11-12</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>3</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2021</TaxYr>
    <BuildTS>2022-09-23 18:48:47Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>LAUREN G GROSS JD</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>1451 ROCKVILLE PIKE STE650</AddressLine1Txt>
        <CityNm>ROCKVILLE</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20852</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>34317974</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.AAI.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2001</FormationYr>
      <LegalDomicileStateCd>MD</LegalDomicileStateCd>
      <ActivityOrMissionDesc>TO ADVANCE AND DISSEMINATE THE KNOWLEDGE OF IMMUNOLOGY AND RELATED DISCIPLINES, TO FOSTER INTERCHANGE OF IDEAS AND INFORMATION AMONG INVESTIGATORS IN THE VARIOUS DISCIPLINES, AND PROMOTING AN UNDERSTANDING OF THE FIELD OF IMMUNOLOGY.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>8</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>8</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>31</TotalEmployeeCnt>
      <TotalVolunteersCnt>231</TotalVolunteersCnt>
      <TotalGrossUBIAmt>398535</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>208392</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>35990</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>49110</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>7896030</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>8778789</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>5232469</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>6328575</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>115606</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>91380</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>13280095</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>15247854</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>1581114</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>1940810</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>3818296</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>4181813</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>3722012</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>3973942</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>9121422</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>10096565</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>4158673</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>5151289</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>83178712</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>91493241</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>5236556</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>5781240</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>77942156</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>85712001</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 INFORMATION 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>1</SignificantChangeInd>
      <ExpenseAmt>2521530</ExpenseAmt>
      <RevenueAmt>5468127</RevenueAmt>
      <Desc>THE JOURNAL OF IMMUNOLOGY:A MAJOR VEHICLE OF INFORMATION DISSEMINATION FOR RESEARCH FINDINGS IN THE FIELD OF IMMUNOLOGY IS THROUGH PUBLICATION OF THAT WORK IN THE JOURNAL OF IMMUNOLOGY (THE JI) - A SCHOLARLY PUBLICATION OWNED AND PRODUCED BY AAI. THE JI IS PUBLISHED SEMIMONTHLY AND REPORTS NOVEL RESULTS FROM ALL AREAS OF EXPERIMENTAL IMMUNOLOGY. IT IS THE OLDEST AND MOST HIGHLY CITED JOURNAL IN THE FIELD. THE JI IS PUBLISHED IN PRINT AND ONLINE, AND IS DISTRIBUTED TO ALL AAI MEMBERS AS WELL AS OTHER SUBSCRIBERS, INCLUDING MAJOR RESEARCH INSTITUTIONS AND BIOTECH COMPANIES. ABSTRACTS OF ALL ARTICLES ARE PUBLISHED ONLINE IMMEDIATELY UPON PUBLICATION, AND ARE FREELY AVAILABLE TO THE PUBLIC. FULL LENGTH ARTICLES ARE AVAILABLE ONLINE TO THE PUBLIC 12 MONTHS AFTER THEIR INITIAL PUBLICATION. ALL JOURNAL CONTENT CAN BE VIEWED AT WWW.JIMMUNOL.ORG. THE JI EDUCATES AAI MEMBERS AS WELL AS NON-MEMBER SCIENTISTS AND PHYSICIANS, AND THE PUBLIC ABOUT THE LATEST DEVELOPMENTS IN THE FIELD OF IMMUNOLOGY. IT ALSO FOSTERS SCIENTIFIC DISCOURSE AMONG IMMUNOLOGISTS BY ESTABLISHING A FORUM FOR THE DISSEMINATION AND DISCUSSION OF CUTTING-EDGE RESEARCH IN IMMUNOLOGY. OVERSIGHT FOR THE ACTIVITIES AND POLICIES OF THE JI ARE CARRIED OUT BY AN EIGHT-MEMBER PUBLICATION COMMITTEE, WHICH ALSO INCLUDES THE CHIEF EXECUTIVE OFFICER, WHO SERVES AS THE EXECUTIVE EDITOR OF THE JI.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>2472158</ExpenseAmt>
        <GrantAmt>1940810</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>1706175</ExpenseAmt>
        <RevenueAmt>1147362</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. IN 2021, AS A RESULT OF THE PANDEMIC, THE ANNUAL MEETING WAS HELD VIRTUALLY.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>119415</ExpenseAmt>
        <RevenueAmt>322735</RevenueAmt>
        <Desc>INTRODUCTORY COURSE</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>1437775</ExpenseAmt>
        <RevenueAmt>754955</RevenueAmt>
        <Desc>COMMITTEES AND MEMBER SERVICES</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>121548</ExpenseAmt>
        <RevenueAmt>414270</RevenueAmt>
        <Desc>ADVANCED COURSE</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>193681</ExpenseAmt>
        <RevenueAmt>118955</RevenueAmt>
        <Desc>IMMUNOHORIZONS</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>13785</ExpenseAmt>
        <Desc>COLLEGE AND HIGH SCHOOL TEACHERS</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>1886204</TotalOtherProgSrvcExpenseAmt>
      <TotalOtherProgSrvcRevenueAmt>1610915</TotalOtherProgSrvcRevenueAmt>
      <TotalProgramServiceExpensesAmt>8586067</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">1</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="RetDoc1040500001">0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">0</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>13</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>31</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>0</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MD</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>MARIA ZAVARELLO CPA CFO</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3016347818</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1451 ROCKVILLE PIKE STE650</AddressLine1Txt>
          <CityNm>ROCKVILLE</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>20852</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>GARY A KORETZKY MD PHD</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</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>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</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>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JENNY P TING PHD</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>300</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JEREMY M BOSS PHD</PersonNm>
        <TitleTxt>PAST PRESIDENT - UNTIL 06/2021</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AKIKO IWASAKI PHD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN JAMESON PHD</PersonNm>
        <TitleTxt>COUNCILLOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</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>M MICHELE HOGAN PHD</PersonNm>
        <TitleTxt>CHIEF EXECUTIVE OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>501731</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>49994</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARIA ZAVARELLO CPA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>207076</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>20460</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LAUREN G GROSS JD</PersonNm>
        <TitleTxt>DIR PUBLIC POLICY/GOV'T AFFAIRS</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>257599</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>24724</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DALE BENGSTON</PersonNm>
        <TitleTxt>WEBMASTER</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>153943</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>14310</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BETHANY COULTER</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>149278</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>15794</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARY LITZINGER PHD</PersonNm>
        <TitleTxt>DIR EDUC/CAREER DEV</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>142615</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>24167</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CATHERINE WATTENBERG</PersonNm>
        <TitleTxt>DIRECTOR OF PUBLICATIONS</TitleTxt>
        <AverageHoursPerWeekRt>37.50</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>129918</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>39357</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>1543060</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>188806</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>12</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FASEB</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 2288</AddressLine1Txt>
            <CityNm>ROCKVILLE</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20847</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>HR AND PAYROLL SERVICES</ServicesDesc>
        <CompensationAmt>896775</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DARTMOUTH JOURNAL SERVICES</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5 PILGRIM PARK RD</AddressLine1Txt>
            <CityNm>WATERBURY</CityNm>
            <StateAbbreviationCd>VT</StateAbbreviationCd>
            <ZIPCd>05676</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PUBLICATION SERVICES</ServicesDesc>
        <CompensationAmt>615753</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>THE SHERIDAN PRESS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>450 FAME AVE</AddressLine1Txt>
            <CityNm>HANOVER</CityNm>
            <StateAbbreviationCd>PA</StateAbbreviationCd>
            <ZIPCd>17331</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PRINTING SERVICES</ServicesDesc>
        <CompensationAmt>377162</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>HIGHWIRE PRESS INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>103 CARNEGIE CTR STE 300</AddressLine1Txt>
            <CityNm>PRINCETON</CityNm>
            <StateAbbreviationCd>NJ</StateAbbreviationCd>
            <ZIPCd>08540</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ONLINE HOSTING AND CONTENT SERVICES</ServicesDesc>
        <CompensationAmt>144524</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>4</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>49110</AllOtherContributionsAmt>
      <TotalContributionsAmt>49110</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>JOURNAL OF IMMUNOLOGY</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>5776992</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>5468127</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>308865</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETING</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1390882</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1147362</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>243520</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>742932</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>742932</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>IMMUNOLOGY COURSES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>737005</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>737005</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>IMMUNOHORIZONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>118955</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>118955</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>12023</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>12023</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>8778789</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>908373</TotalRevenueColumnAmt>
        <ExclusionAmt>908373</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>1643</TotalRevenueColumnAmt>
        <ExclusionAmt>1643</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>24490322</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>19070120</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>5420202</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>5420202</TotalRevenueColumnAmt>
        <ExclusionAmt>5420202</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>WEBSITE JOB POSTING</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>79580</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>79580</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>ADVERTISING</Desc>
        <BusinessCd>541800</BusinessCd>
        <TotalRevenueColumnAmt>10090</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>10090</UnrelatedBusinessRevenueAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>67</TotalRevenueColumnAmt>
        <ExclusionAmt>67</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>89737</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>15247854</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>8226404</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>398535</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>6573805</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>17050</TotalAmt>
        <ProgramServicesAmt>17050</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>1916062</TotalAmt>
        <ProgramServicesAmt>1916062</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>7698</TotalAmt>
        <ProgramServicesAmt>7698</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>783476</TotalAmt>
        <ProgramServicesAmt>711001</ProgramServicesAmt>
        <ManagementAndGeneralAmt>72475</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>2406391</TotalAmt>
        <ProgramServicesAmt>2183789</ProgramServicesAmt>
        <ManagementAndGeneralAmt>222602</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>221885</TotalAmt>
        <ProgramServicesAmt>201360</ProgramServicesAmt>
        <ManagementAndGeneralAmt>20525</ManagementAndGeneralAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>538170</TotalAmt>
        <ProgramServicesAmt>488387</ProgramServicesAmt>
        <ManagementAndGeneralAmt>49783</ManagementAndGeneralAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>231891</TotalAmt>
        <ProgramServicesAmt>210440</ProgramServicesAmt>
        <ManagementAndGeneralAmt>21451</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>68451</TotalAmt>
        <ProgramServicesAmt>50656</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17795</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>34606</TotalAmt>
        <ProgramServicesAmt>25609</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8997</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>675902</TotalAmt>
        <ManagementAndGeneralAmt>675902</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>245257</TotalAmt>
        <ProgramServicesAmt>181497</ProgramServicesAmt>
        <ManagementAndGeneralAmt>63760</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>100010</TotalAmt>
        <ManagementAndGeneralAmt>100010</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>110989</TotalAmt>
        <ProgramServicesAmt>102898</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8091</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>429535</TotalAmt>
        <ProgramServicesAmt>395945</ProgramServicesAmt>
        <ManagementAndGeneralAmt>33590</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>267909</TotalAmt>
        <ProgramServicesAmt>209071</ProgramServicesAmt>
        <ManagementAndGeneralAmt>58838</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>5927</TotalAmt>
        <ProgramServicesAmt>5484</ProgramServicesAmt>
        <ManagementAndGeneralAmt>443</ManagementAndGeneralAmt>
      </TravelGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>136260</TotalAmt>
        <ProgramServicesAmt>106335</ProgramServicesAmt>
        <ManagementAndGeneralAmt>29925</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>31633</TotalAmt>
        <ProgramServicesAmt>24713</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6920</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>PUBLICATION SALES</Desc>
        <TotalAmt>1398708</TotalAmt>
        <ProgramServicesAmt>1398708</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK &amp; CREDIT CARD FEES</Desc>
        <TotalAmt>188974</TotalAmt>
        <ProgramServicesAmt>167899</ProgramServicesAmt>
        <ManagementAndGeneralAmt>21075</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES AND PUBLICATIONS</Desc>
        <TotalAmt>101114</TotalAmt>
        <ProgramServicesAmt>100132</ProgramServicesAmt>
        <ManagementAndGeneralAmt>982</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>INCOME TAX</Desc>
        <TotalAmt>42493</TotalAmt>
        <ManagementAndGeneralAmt>42493</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>136174</TotalAmt>
        <ProgramServicesAmt>81333</ProgramServicesAmt>
        <ManagementAndGeneralAmt>54841</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>10096565</TotalAmt>
        <ProgramServicesAmt>8586067</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1510498</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>3526964</BOYAmt>
        <EOYAmt>3597879</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>891123</BOYAmt>
        <EOYAmt>1613194</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>185283</BOYAmt>
        <EOYAmt>146199</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>220040</BOYAmt>
        <EOYAmt>260041</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1847506</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>1207779</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>706391</BOYAmt>
        <EOYAmt>639727</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>69858248</BOYAmt>
        <EOYAmt>76254315</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>7074381</BOYAmt>
        <EOYAmt>8227472</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>716282</BOYAmt>
        <EOYAmt>754414</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>83178712</BOYAmt>
        <EOYAmt>91493241</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>979007</BOYAmt>
        <EOYAmt>1317017</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>2856497</BOYAmt>
        <EOYAmt>3194537</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>1401052</BOYAmt>
        <EOYAmt>1269686</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>5236556</BOYAmt>
        <EOYAmt>5781240</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>77828353</BOYAmt>
        <EOYAmt>85600613</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>113803</BOYAmt>
        <EOYAmt>111388</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>77942156</BOYAmt>
        <EOYAmt>85712001</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>83178712</BOYAmt>
        <EOYAmt>91493241</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>5151289</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>2618556</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>27542</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>26745</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>29383</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>35990</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>49110</CurrentTaxYearAmt>
        <TotalAmt>168770</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>9398260</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>9006243</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9328063</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7649110</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8226404</CurrentTaxYearAmt>
        <TotalAmt>43608080</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus4YearsAmt>800065</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>870031</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1013574</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>243520</CurrentTaxYearAmt>
        <TotalAmt>2932190</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>10225867</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>9903019</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10371020</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7690100</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8519034</CurrentTaxYearAmt>
        <TotalAmt>46709040</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus4YearsAmt>14335</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>13431</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>12048</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7809</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8555</CurrentTaxYearAmt>
        <TotalAmt>56178</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <CurrentTaxYearMinus4YearsAmt>90257</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>88229</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>94357</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>272843</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>104592</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>101660</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>106405</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7809</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>8555</CurrentTaxYearAmt>
        <TotalAmt>329021</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>46380019</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>710360</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>820719</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>823247</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>794176</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>910016</CurrentTaxYearAmt>
        <TotalAmt>4058518</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <Post1975UBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>136991</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>185264</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>166052</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>158941</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>208392</CurrentTaxYearAmt>
        <TotalAmt>855640</TotalAmt>
      </Post1975UBTIGrp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>847351</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1005983</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>989299</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>953117</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1118408</CurrentTaxYearAmt>
        <TotalAmt>4914158</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>120</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>8100</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3978</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>35745</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>67</CurrentTaxYearAmt>
        <TotalAmt>48010</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>11073338</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>10917102</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>11364297</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>8678962</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9637509</CurrentTaxYearAmt>
        <TotalAmt>51671208</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.89760</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.90110</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.09510</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.08930</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME - 2017 AMOUNT: $ 120. 2018 AMOUNT: $ 8,100. 2019 AMOUNT: $ 3,978. 2020 AMOUNT: $ 8,701. 2021 AMOUNT: $ 67. BAD DEBT RECOVERY - 2020 AMOUNT: $ 27,044.</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>50383</FilingOrganizationsTotalAmt>
      </TotalDirectLobbyingGrp>
      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>50383</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>9370280</FilingOrganizationsTotalAmt>
      </OtherExemptPurposeExpendGrp>
      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>9420663</FilingOrganizationsTotalAmt>
      </TotalExemptPurposeExpendGrp>
      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>621033</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>155258</FilingOrganizationsTotalAmt>
      </GrassrootsNontaxableGrp>
      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyngGrassrootMnsNonTxGrp>
      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotLbbyExpendMnsLbbyngNonTxGrp>
      <AvgLobbyingNontaxableAmountGrp>
        <CurrentYearMinus3Amt>675776</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>725838</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>606071</CurrentYearMinus1Amt>
        <CurrentYearAmt>621033</CurrentYearAmt>
        <TotalAmt>2628718</TotalAmt>
      </AvgLobbyingNontaxableAmountGrp>
      <LobbyingCeilingAmt>3943077</LobbyingCeilingAmt>
      <AvgTotalLobbyingExpendGrp>
        <CurrentYearMinus3Amt>42918</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>48513</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>66236</CurrentYearMinus1Amt>
        <CurrentYearAmt>50383</CurrentYearAmt>
        <TotalAmt>208050</TotalAmt>
      </AvgTotalLobbyingExpendGrp>
      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>168944</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>181460</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>151518</CurrentYearMinus1Amt>
        <CurrentYearAmt>155258</CurrentYearAmt>
        <TotalAmt>657180</TotalAmt>
      </AvgGrassrootsNontaxableGrp>
      <GrassrootsCeilingAmt>985770</GrassrootsCeilingAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>985528</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>517012</DepreciationAmt>
        <BookValueAmt>468516</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>496461</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>464733</DepreciationAmt>
        <BookValueAmt>31728</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>365517</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>226034</DepreciationAmt>
        <BookValueAmt>139483</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>639727</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>HEDGE FUNDS</Desc>
        <BookValueAmt>8227472</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>8227472</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED COMPENSATION PLAN</Desc>
        <Amt>527433</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED RENT</Desc>
        <Amt>722637</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE OBLIGATION</Desc>
        <Amt>19616</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>1269686</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>17191308</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>2618556</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>800</DonatedServicesAndUseFcltsAmt>
      <RevenueNotReportedAmt>2619356</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>14571952</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>675902</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>675902</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>15247854</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>9421463</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>800</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>800</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>9420663</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>675902</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>675902</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>10096565</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. WE HAVE DETERMINED THAT 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, 2021, AAI GENERATED $398,535 IN GROSS TAXABLE UNRELATED BUSINESS INCOME. THE INCOME TAX EXPENSE ASSOCIATED WITH THE UNRELATED BUSINESS INCOME WAS $42,493 FOR THE YEAR ENDED DECEMBER 31, 2021, AND HAS BEEN RECORDED IN THE ACCOMPANYING FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>CENTRAL AMERICA AND THE CARIBBEAN</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>INVESTMENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>2488061</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>1875</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>475</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>95</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>190</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>5063</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>2495759</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>2495759</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>MEETING REGISTRATION SUPPORT TO AAI MEMBER &amp; NON-MEMBER SCIENTISTS</PurposeOfGrantTxt>
        <CashGrantAmt>5063</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <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. WE WERE ABLE TO VERIFY THE RECIPIENTS' REGISTRATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>DISTINGUISHED SERVICE AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LIFETIME ACHIEVEMENT AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>EXCELLENCE IN MENTORING AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BLACK IN IMMUNOLOGY SUPPORT</GrantTypeTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>2000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MINORITY SCIENTIST TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>10</RecipientCnt>
        <CashGrantAmt>1695</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>HIGH SCHOOL TEACHERS' AWARD TRAVEL</GrantTypeTxt>
        <RecipientCnt>4</RecipientCnt>
        <CashGrantAmt>1580</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BD BIOSCIENCES INVESTIGATOR AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>THERMO FISHER MERITORIOUS CAREER AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>THERMO FISHER TRAINEE ACHIEVEMENT AWARDS</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>6480</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>EARLY CAREER FACULTY TRAVEL GRANTS</GrantTypeTxt>
        <RecipientCnt>43</RecipientCnt>
        <CashGrantAmt>16986</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAINEE POSTER AWARDS</GrantTypeTxt>
        <RecipientCnt>11</RecipientCnt>
        <CashGrantAmt>880</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAINEE ABSTRACT AWARDS</GrantTypeTxt>
        <RecipientCnt>306</RecipientCnt>
        <CashGrantAmt>68085</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STEINMAN AWARD FOR HUMAN IMMUNOLOGY RESEARCH</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5395</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>28</RecipientCnt>
        <CashGrantAmt>8610</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>UNDERGRADUATE FACULTY TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>12</RecipientCnt>
        <CashGrantAmt>3720</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CAREER IN IMMUNOLOGY FELLOWSHIPS</GrantTypeTxt>
        <RecipientCnt>23</RecipientCnt>
        <CashGrantAmt>977616</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAVEL FOR TECHNIQUES AWARD</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>3281</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>YOUNG SCHOLAR TRAVEL AWARD</GrantTypeTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>1005</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FELLOWSHIPS FOR CAREER RE-ENTRY</GrantTypeTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>251971</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>INTERSECT FELLOWSHIPS FOR COMPUTATIONAL SCIENTISTS &amp; IMMUNOLOGISTS</GrantTypeTxt>
        <RecipientCnt>10</RecipientCnt>
        <CashGrantAmt>541598</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PFIZER-SHOWELL TRAVEL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>395</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LUSTGARTEN-THERMO FISHER SCIENTIFIC MEMORIAL AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>395</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>5395</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">
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <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>M MICHELE HOGAN PHD</PersonNm>
        <TitleTxt>CHIEF EXECUTIVE OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>491063</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>10668</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>48500</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>4245</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>554476</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LAUREN G GROSS JD</PersonNm>
        <TitleTxt>DIR PUBLIC POLICY/GOV'T AFFAIRS</TitleTxt>
        <BaseCompensationFilingOrgAmt>252121</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>5478</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>24724</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>2537</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>284860</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARIA ZAVARELLO CPA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>201031</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>6045</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>19634</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>2290</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>229000</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CATHERINE WATTENBERG</PersonNm>
        <TitleTxt>DIRECTOR OF PUBLICATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>127237</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>2681</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12950</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>27736</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>170604</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DALE BENGSTON</PersonNm>
        <TitleTxt>WEBMASTER</TitleTxt>
        <BaseCompensationFilingOrgAmt>147986</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>4000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1957</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14310</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1469</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>169722</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARY LITZINGER PHD</PersonNm>
        <TitleTxt>DIR EDUC/CAREER DEV</TitleTxt>
        <BaseCompensationFilingOrgAmt>137975</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>4000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>640</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13520</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12034</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>168169</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BETHANY COULTER</PersonNm>
        <TitleTxt>DIRECTOR OF COMMUNICATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>147320</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1958</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14318</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>2945</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>166541</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>EMPLOYEES RECEIVED MERIT-BASED BONUSES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>IN 2021, THE ANNUAL MEETING WAS HELD VIRTUALLY BECAUSE OF THE COVID PANDEMIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <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>THE FEDERAL FORM 990 IS PREPARED BY AN EXTERNAL AUDITING FIRM AND THEN REVIEWED BY THE CHIEF FINANCIAL OFFICER AND THE SENIOR ACCOUNTANT. AFTER REVIEW AND MODIFICATION, AS NECESSARY, THE RETURN IS REVIEWED BY THE CHIEF EXECUTIVE OFFICER, SECRETARY/TREASURER, AND THE AAI COUNCIL (BOD).</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 15A</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. THE DETERMINATION IS MADE AFTER REVIEW OF SEVERAL SALARY SURVEYS OF SIMILAR ORGANIZATIONS IN THE SAME GEOGRAPHIC AREA AND AN EVALUATION OF THE CEO'S PERFORMANCE. A MEMORANDUM FOR THE RECORD IS PREPARED SOON THEREAFTER DOCUMENTING THE PROCESS AND THE ACTION AND STATING THE INTENT TO ESTABLISH A REBUTTABLE PRESUMPTION OF REASONABLENESS. THE CEO ALSO RELIES ON SIMILAR SALARY SURVEYS AS WELL AS PERFORMANCE APPRAISALS WHEN DETERMINING THE COMPENSATION OF OTHER KEY EMPLOYEES.</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>
