﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-09-16T10:08:39-04:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>474682450</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>BELLENFANT PLLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2919 BERRY HILL DR</AddressLine1Txt>
        <CityNm>NASHVILLE</CityNm>
        <StateAbbreviationCd>TN</StateAbbreviationCd>
        <ZIPCd>372043126</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>363180285</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ORTHOPAEDIC RESEARCH SOCIETY</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ORTH</BusinessNameControlTxt>
      <PhoneNum>8478235770</PhoneNum>
      <USAddress>
        <AddressLine1Txt>9400 WEST HIGGINS ROAD</AddressLine1Txt>
        <CityNm>ROSEMONT</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60018</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>MATT LOEB</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>8478235770</PhoneNum>
      <SignatureDt>2026-09-12</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>JOHN BELLENFANT CPA</PreparerPersonNm>
      <PTIN>P01625858</PTIN>
      <PhoneNum>6153708700</PhoneNum>
      <PreparationDt>2026-09-16</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc2" referenceDocumentId="RetDoc6">
      <AddressChangeInd>X</AddressChangeInd>
      <PrincipalOfficerNm>SUZANNE MAHER</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>9400 WEST HIGGINS ROAD</AddressLine1Txt>
        <AddressLine2Txt>SUITE 225</AddressLine2Txt>
        <CityNm>ROSEMONT</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60018</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>4133674</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.ORS.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1982</FormationYr>
      <LegalDomicileStateCd>IL</LegalDomicileStateCd>
      <ActivityOrMissionDesc>THE ORTHOPAEDIC RESEARCH SOCIETY (THE "SOCIETY") IS A NONPROFIT CORPORATION ORGANIZED TO SUPPORT, DEVELOP, AND ENCOURAGE RESEARCH AND SPONSOR EDUCATIONAL ACTIVITIES IN FIELDS RELATED TO ORTHOPAEDIC SURGERY. THE SOCIETY WAS INCORPORATED IN THE STATE OF ILLINOIS IN 1982.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>15</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>15</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>12</TotalEmployeeCnt>
      <TotalVolunteersCnt>200</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>633904</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>762638</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>3459675</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>2686997</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>338190</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>680233</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>13394</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>3806</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>4445163</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>4133674</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>360256</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>223867</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>1503575</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>1314256</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>2383923</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>2287287</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>4247754</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>3825410</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>197409</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>308264</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>9908820</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>9608340</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>1998265</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>1185652</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>7910555</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>8422688</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE ORTHOPAEDIC RESEARCH SOCIETY (THE "SOCIETY") IS A NONPROFIT CORPORATION ORGANIZED TO SUPPORT, DEVELOP, AND ENCOURAGE RESEARCH AND SPONSOR EDUCATIONAL ACTIVITIES IN FIELDS RELATED TO ORTHOPAEDIC SURGERY. THE SOCIETY WAS INCORPORATED IN THE STATE OF ILLINOIS IN 1982.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>1762983</ExpenseAmt>
      <GrantAmt>208867</GrantAmt>
      <RevenueAmt>2266906</RevenueAmt>
      <Desc>MEETINGS, SYMPOSIA AND WORKSHOPS HELD TO PROMOTE, ENCOURAGE AND SUPPORT RESEARCH AND EDUCATION ACTIVITIES IN THE FIELDS OF ORTHOPAEDIC SURGERY AND MUSCULOSKELETAL DISEASES.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>279615</ExpenseAmt>
        <RevenueAmt>629603</RevenueAmt>
        <Desc>JOURNAL OF ORTHOPAEDIC AND JOURNAL OF ORTHOPAEDIC RESEARCH SPINE - MEDICAL JOURNALS TO DISSEMINATE THE EXPANDING BODYOF KNOWLEDGE AND TECHNIQUES OF ORTHOPAEDIC SURGERY TO PROFESSIONALS IN THE FIELD.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>249028</ExpenseAmt>
        <GrantAmt>15000</GrantAmt>
        <RevenueAmt>332568</RevenueAmt>
        <Desc>WORKSHOPS AND EDUCATION - TO PROVIDE EDUCATIONAL ACTIVITIES AND WORKSHOPS IN THE FIELDS OF ORTHOPAEDIC SURGERY AND MUSCULOSKELETAL DISEASES.</Desc>
      </ProgSrvcAccomActy3Grp>
      <TotalProgramServiceExpensesAmt>2291626</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc7">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc3">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc3">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc3">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc3">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="RetDoc3">true</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc3">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc3">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc3">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc3">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc3">true</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc3">true</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc3">true</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc3">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc4">false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc4">true</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc5">true</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>72</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>12</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>15</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>15</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>true</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>true</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>true</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>true</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>IL</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>MATT LOEB</PersonNm>
        <PhoneNum>8152222287</PhoneNum>
        <USAddress>
          <AddressLine1Txt>9400 W HIGGINS RD</AddressLine1Txt>
          <CityNm>ROSEMONT</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60018</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUZANNE MAHER</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSAN BUKATA</PersonNm>
        <TitleTxt>IMMEDIATE PA</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HICHAM DRISSI</PersonNm>
        <TitleTxt>1ST VICE PRE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROGER CORNWELL</PersonNm>
        <TitleTxt>2ND VICE PRE</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROBIN QUEEN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAWN ELLIOTT</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARTIN STODDART</PersonNm>
        <TitleTxt>EDUCATION CO</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HOLGER JAHR</PersonNm>
        <TitleTxt>COLLABORATIO</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LISBET HAGLUND</PersonNm>
        <TitleTxt>SECTION COUN</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MEGAN KILLIAN</PersonNm>
        <TitleTxt>COMMUNITY CO</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KARIN PAYNE</PersonNm>
        <TitleTxt>RESEARCH COU</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAIMO AHN</PersonNm>
        <TitleTxt>ADVOCACY COU</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AMY MCNULTY</PersonNm>
        <TitleTxt>MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PHILLIPP LEUCHT</PersonNm>
        <TitleTxt>MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRIS PANEBIANCO</PersonNm>
        <TitleTxt>MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MATT LOEB</PersonNm>
        <TitleTxt>EXECUTIVE DI</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>187500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SHARON SMITH-TERRY</PersonNm>
        <TitleTxt>PAST EXECUTI</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <FormerOfcrDirectorTrusteeInd>X</FormerOfcrDirectorTrusteeInd>
        <ReportableCompFromOrgAmt>142966</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TIMOTHY MIX</PersonNm>
        <TitleTxt>MARKETING/ME</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>105060</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAIME MARIE ALSTON</PersonNm>
        <TitleTxt>DIRECTOR OF</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>101750</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>537276</TotalReportableCompFromOrgAmt>
      <IndivRcvdGreaterThan100KCnt>4</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>true</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>MATT LOEB</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>8 MORGAN HILL DRIVE</AddressLine1Txt>
            <CityNm>DOYLESTOWN</CityNm>
            <StateAbbreviationCd>PA</StateAbbreviationCd>
            <ZIPCd>18901</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <CompensationAmt>187500</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>1</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>542080</MembershipDuesAmt>
      <AllOtherContributionsAmt>220558</AllOtherContributionsAmt>
      <TotalContributionsAmt>762638</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETINGS</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>1611746</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1611746</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PUBLICATIONS</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>629603</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>629603</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>OTHER PROGRAMS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>170834</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>170834</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>EDUCATION</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>161734</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>161734</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SATELLITE MEETINGS</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>113080</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>113080</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>2686997</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>264230</TotalRevenueColumnAmt>
        <ExclusionAmt>264230</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <OtherAmt>416003</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <GainOrLossGrp>
        <OtherAmt>416003</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>416003</TotalRevenueColumnAmt>
        <ExclusionAmt>416003</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>OTHER INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>3806</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>3806</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>3806</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>4133674</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2690803</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>680233</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>223867</TotalAmt>
        <ProgramServicesAmt>223867</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>187500</TotalAmt>
        <ProgramServicesAmt>75907</ProgramServicesAmt>
        <ManagementAndGeneralAmt>111593</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>142966</TotalAmt>
        <ProgramServicesAmt>57878</ProgramServicesAmt>
        <ManagementAndGeneralAmt>85088</ManagementAndGeneralAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>983790</TotalAmt>
        <ProgramServicesAmt>458040</ProgramServicesAmt>
        <ManagementAndGeneralAmt>525750</ManagementAndGeneralAmt>
      </OtherSalariesAndWagesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>403146</TotalAmt>
        <ManagementAndGeneralAmt>403146</ManagementAndGeneralAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>11481</TotalAmt>
        <ManagementAndGeneralAmt>11481</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>22982</TotalAmt>
        <ManagementAndGeneralAmt>22982</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>195236</TotalAmt>
        <ProgramServicesAmt>125530</ProgramServicesAmt>
        <ManagementAndGeneralAmt>69706</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>39253</TotalAmt>
        <ProgramServicesAmt>31113</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8140</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>580444</TotalAmt>
        <ProgramServicesAmt>468106</ProgramServicesAmt>
        <ManagementAndGeneralAmt>112338</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>66907</TotalAmt>
        <ManagementAndGeneralAmt>66907</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>42110</TotalAmt>
        <ProgramServicesAmt>32181</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9929</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>546577</TotalAmt>
        <ProgramServicesAmt>533127</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13450</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>4475</TotalAmt>
        <ManagementAndGeneralAmt>4475</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>25972</TotalAmt>
        <ProgramServicesAmt>25972</ProgramServicesAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>CREDIT CARD PROCESSING</Desc>
        <TotalAmt>79927</TotalAmt>
        <ManagementAndGeneralAmt>79927</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES &amp; SUBSCRIPTIONS</Desc>
        <TotalAmt>75648</TotalAmt>
        <ProgramServicesAmt>75528</ProgramServicesAmt>
        <ManagementAndGeneralAmt>120</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>ABSTRACT SUBMISSION</Desc>
        <TotalAmt>57843</TotalAmt>
        <ProgramServicesAmt>57843</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MISCELLANEOUS</Desc>
        <TotalAmt>50928</TotalAmt>
        <ProgramServicesAmt>46307</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4621</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>84358</TotalAmt>
        <ProgramServicesAmt>80227</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4131</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>3825410</TotalAmt>
        <ProgramServicesAmt>2291626</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1533784</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>2182905</BOYAmt>
        <EOYAmt>1600787</EOYAmt>
      </CashNonInterestBearingGrp>
      <AccountsReceivableGrp>
        <BOYAmt>236727</BOYAmt>
        <EOYAmt>223980</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>296022</BOYAmt>
        <EOYAmt>194765</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>183913</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>175714</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>4878</BOYAmt>
        <EOYAmt>8199</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>6685409</BOYAmt>
        <EOYAmt>7198659</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>502879</BOYAmt>
        <EOYAmt>381950</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>9908820</BOYAmt>
        <EOYAmt>9608340</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>557040</BOYAmt>
        <EOYAmt>77950</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>1017921</BOYAmt>
        <EOYAmt>772327</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>423304</BOYAmt>
        <EOYAmt>335375</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>1998265</BOYAmt>
        <EOYAmt>1185652</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>6927194</BOYAmt>
        <EOYAmt>7319940</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>983361</BOYAmt>
        <EOYAmt>1102748</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>7910555</BOYAmt>
        <EOYAmt>8422688</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>9908820</BOYAmt>
        <EOYAmt>9608340</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>308264</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>203869</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc7">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>169768</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2064335</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>642249</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>633904</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>762638</CurrentTaxYearAmt>
        <TotalAmt>4272894</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>1784830</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2598645</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2171277</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3204285</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2686997</CurrentTaxYearAmt>
        <TotalAmt>12446034</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <CurrentTaxYearMinus4YearsAmt>9192</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>6013</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>39090</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>271982</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>170834</CurrentTaxYearAmt>
        <TotalAmt>497111</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>1963790</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4668993</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2852616</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>4110171</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3620469</CurrentTaxYearAmt>
        <TotalAmt>17216039</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>17216039</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>80768</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>204059</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>241961</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>334992</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>680233</CurrentTaxYearAmt>
        <TotalAmt>1542013</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>80768</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>204059</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>241961</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>334992</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>680233</CurrentTaxYearAmt>
        <TotalAmt>1542013</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>2044558</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4873052</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3094577</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>4445163</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>4300702</CurrentTaxYearAmt>
        <TotalAmt>18758052</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.91780</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.94160</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.08000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.06000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc3">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>286773</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>37826</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>324599</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>260846</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>25927</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>286773</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>234059</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>26787</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>260846</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>270274</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>-36215</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>234059</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>237514</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>32760</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>270274</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>0.64600</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.35400</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>14202</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>14202</DepreciationAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>120656</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>112766</DepreciationAmt>
        <BookValueAmt>7890</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>49055</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>48746</DepreciationAmt>
        <BookValueAmt>309</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>8199</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>LEASE LIABILITY NONCURRENT</Desc>
        <Amt>254712</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>RIGHT OF USE LIABILITY - OPERATING L</Desc>
        <Amt>80663</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>335375</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>4337543</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>203869</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>203869</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>4133674</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>4133674</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>3825410</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>3825410</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>3825410</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 2, PART V, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY'S ENDOWMENT FUNDS ARE TO BE HELD IN PERPETUITY AND INVESTMENT INCOME IS TO BE UTILIZED FOR THE SOCIETY'S MISSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS EVALUATED ITS TAX POSITIONS IN ACCORDANCE WITH THE CODIFICATION STANDARD RELATING TO ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES. THE ORGANIZATION BELIEVES THAT IT HAS TAKEN NO UNCERTAIN TAX POSITIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc4">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>GRANTS &amp; AWARDS</GrantTypeTxt>
        <RecipientCnt>23</RecipientCnt>
        <CashGrantAmt>223867</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE I, PAGE 4, PART IV</FormAndLineReferenceDesc>
        <ExplanationTxt>RECIPIENTS MUST MEET CERTAIN CRITERIA TO BE ELIGIBLE FOR GRANTS FROM THE ORGANIZATION. THE APPLICANTS GO THROUGH A RIGOROUS SELECTION PROCESS AND MUST SUBMIT FULL CURRICULUM VITAE. ALL UNUSED FUNDS MUST BE RETURNED AND RECIPIENTS MUST NOTIFY THE ORGANIZATION OF OTHER FUNDING SOURCES. THEY MUST PRESENT AT THE ANNUAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc5">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MATT LOEB</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>187500</BaseCompensationFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>187500</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SHARON SMITH-TERRY</PersonNm>
        <TitleTxt>PAST EXECUTIVE DIREC</TitleTxt>
        <BaseCompensationFilingOrgAmt>142966</BaseCompensationFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>142966</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc6">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORTHOPAEDIC RESEARCH SOCIETY (THE "SOCIETY") IS A NONPROFIT CORPORATION ORGANIZED TO SUPPORT, DEVELOP, AND ENCOURAGE RESEARCH AND SPONSOR EDUCATIONAL ACTIVITIES IN FIELDS RELATED TO ORTHOPAEDIC SURGERY. THE SOCIETY WAS INCORPORATED IN THE STATE OF ILLINOIS IN 1982.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>SHARON SMITH-TERRY WAS A FORMER OFFICER WHO WORKED AS ACTING EXECUTIVE DIRECTOR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS SIX CLASSES OF MAMBERS: STUDENT, POST GRADUATE TRAINEE, EARLY CAREER, AFFILIATE, ESTABLISHED, AND EMERITUS, ALL WITH VOTING RIGHTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS ELECT THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>A MINIMUM OF 1/10 OF THE MEMBERSHIP ELIGIBLE TO VOTE SHALL CONSTITUTE A QUORUM FOR THE TRANSACTION OF BUSINESS BY THE SOCIETY AT THE ANNUAL BUSINESS MEETING, OR WHEN AN ELECTRONIC VOTE IS HELD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>AN INDEPENDENT CERTIFIED PUBLIC ACCOUNTING FIRM (CPA) PREPARES THE SOCIETY'S FORM 990 AND SUBMITS THE FORM TO THE SOCIETY'S EXECUTIVE DIRECTOR FOR REVIEW. AN ELECTRONIC COPY OF THE FORM IS ALSO PROVIDED TO ALL VOTING MEMBERS OF THE BOARD FOR REVIEW. QUESTIONS AND COMMENTS ON THE FORM BY THE TREASURER AND BOARD MEMBERS ARE DIRECTED BACK TO THE CPA FOR RESOLUTION. AFTER ALL DISCUSSION POINTS ARE RESOLVED, THE FORMS ARE FINALIZED AND PROVIDED TO THE EXECUTIVE DIRECTOR FOR FINAL REVIEW AND SIGNATURE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY ANALYZES AMOUNTS DUE FROM OR TO ANY OFFICER, DIRECTOR, OR MEMBER OF A COMMITTEE WITH GOVERNING BOARD DELEGATED POWERS TO DETERMINE AMOUNTS PAID TO OR RECEIVED FROM SUCH PERSON. THE SOCIETY ALSO SUBMITS A QUESTIONNAIRE ANNUALLY TO SUCH PERSONS WITH THE QUESTIONS DESIGNATED TO DETECT ANY VIOLATIONS OF THE CONFLICT OF INTEREST POLICY. THE SOCIETY THEN PREPARES A REPORT OF ITS FINDINGS AND PRESENTS IT TO THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR THE EXECUTIVE DIRECTOR IS APPROVED BY THE COMPENSATION/EXECUTIVE COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>