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        <PersonNm>KEVIN DOLAN</PersonNm>
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        <PersonNm>SUSAN CAPON</PersonNm>
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      <ContractorCompensationGrp>
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      <ContractorCompensationGrp>
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      <ProgramServiceRevenueGrp>
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        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>63555762</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>317484</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>306961</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>341347</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>402812</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>398597</CurrentTaxYearAmt>
        <TotalAmt>1767201</TotalAmt>
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      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>317484</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>306961</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>341347</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>402812</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>398597</CurrentTaxYearAmt>
        <TotalAmt>1767201</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
        <CurrentTaxYearMinus4YearsAmt>97279</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>66192</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>10586</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7372</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2381</CurrentTaxYearAmt>
        <TotalAmt>183810</TotalAmt>
      </NetIncomeFromOtherUBIGrp>
      <OtherIncome509Grp>
        <CurrentTaxYearAmt>9243204</CurrentTaxYearAmt>
        <TotalAmt>9243204</TotalAmt>
      </OtherIncome509Grp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>12779221</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>15109013</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>15987160</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>16523507</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>14351076</CurrentTaxYearAmt>
        <TotalAmt>74749977</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.85020</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.97420</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.02360</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.02320</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>INSURANCE PROCEEDS - 2020 AMOUNT: $ 9,243,204.</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>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>400000</OtherCostOrOtherBasisAmt>
        <BookValueAmt>400000</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>2535060</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>535935</DepreciationAmt>
        <BookValueAmt>1999125</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1248152</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>486020</DepreciationAmt>
        <BookValueAmt>762132</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>3161257</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>SECURITY DEPOSIT</Desc>
        <Amt>7391</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>7391</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>15035017</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>970088</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>970088</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>14064929</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>97484</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>97484</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>14162413</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>9315670</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>9315670</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>97484</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>97484</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>9413154</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ISPOR IS EXEMPT FROM FEDERAL INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE (IRC). HOWEVER, INCOME FROM CERTAIN ACTIVITIES NOT DIRECTLY RELATED TO ISPOR'S TAX-EXEMPT PURPOSE IS SUBJECT TO TAXATION AS UNRELATED BUSINESS INCOME. ISPOR FOLLOWS THE INCOME TAX STANDARD FOR UNCERTAIN TAX POSITIONS. ISPOR BELIEVES THERE ARE NO UNCERTAIN TAX POSITIONS THAT ARE REQUIRED TO BE DISCLOSED IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <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>NANCY S BERG</PersonNm>
        <TitleTxt>CEO &amp; EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>579231</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>42750</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12577</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>634558</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LUCINDA ORSINI</PersonNm>
        <TitleTxt>ASSOCIATE CHIEF SCIENCE OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>268661</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>52340</BonusFilingOrganizationAmount>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13547</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>346560</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SUSAN CAPON</PersonNm>
        <TitleTxt>CHIEF OPERATING OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>236508</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>47700</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>25742</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11003</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>320953</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JULIE MCGRATH</PersonNm>
        <TitleTxt>SENIOR DIRECTOR, GLOBAL EVENTS</TitleTxt>
        <BaseCompensationFilingOrgAmt>169831</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>14000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>8222</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12012</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>204065</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ELIZABETH LANE</PersonNm>
        <TitleTxt>CHIEF MARKETING OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>166908</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>7897</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16784</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>203601</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CHRISTINA DARNOWSKI</PersonNm>
        <TitleTxt>DIRECTOR, GOVERNANCE</TitleTxt>
        <BaseCompensationFilingOrgAmt>144769</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>7745</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16036</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>9009</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>177559</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JENNIFER OLSEN-CASILLAS</PersonNm>
        <TitleTxt>DIRECTOR, MEMBER SERVICES</TitleTxt>
        <BaseCompensationFilingOrgAmt>134610</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>9600</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>173952</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KEVIN DOLAN</PersonNm>
        <TitleTxt>DIRECTOR, FINANCE</TitleTxt>
        <BaseCompensationFilingOrgAmt>130419</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>20659</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14208</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>876</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>166162</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BONUSES WERE PART OF THE ANNUAL BUDGET WHICH WAS APPROVED BY THE BOARD OF DIRECTORS. THESE AMOUNTS ARE INCLUDED IN EACH RECIPIENT'S 2020 FORM W-2. THE FOLLOWING EMPLOYEES RECEIVED BONUSES IN 2020: LUCINDA ORSINI: $52,340 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. SUSAN CAPON: $47,700 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. JULIE MCGRATH: $14,000 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. ELIZABETH LANE: $7,897 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. CHRISTINA DARNOWSKI: $7,745 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. JENNIFER OLSEN-CASILLAS: $9,600 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR. KEVIN DOLAN: $20,659 DISCRETIONARY BONUS BASED ON PERSONAL PERFORMANCE AND SUBJECT TO APPROVAL BY THE CEO &amp; EXECUTIVE DIRECTOR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE HAS THE DUTIES AND AUTHORITY BETWEEN MEETINGS OF THE BOARD, IN PLACE OF THE BOARD, TO TAKE ACTION ON MATTERS CONSISTENT WITH THE GOALS OF THE SOCIETY. THE EXECUTIVE COMMITTEE IS COMPRISED OF THE OFFICERS OF THE SOCIETY: PRESIDENT, IMMEDIATE PAST PRESIDENT, PRESIDENT-ELECT, EXECUTIVE DIRECTOR (AS SECRETARY) AND TREASURER. THE EXECUTIVE DIRECTOR IS A VOTING MEMBER OF THE BOARD, EXCEPT ON THE MATTER OF THE EXECUTIVE DIRECTOR'S SALARY AND CONTRACT REVIEW AND DETERMINATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>TWO NEW CLASSES OF MEMBERS WITH VOTING RIGHTS HAVE BEEN ADDED TO THE GOVERNING DOCUMENTS OF THE ORGANIZATION, NEW PROFESSIONALS AND RETIRED MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS FIVE TYPES OF MEMBERS AS FOLLOWS: MEMBER - ANY INDIVIDUAL WHO SUPPORTS THE OBJECTIVES OF THE SOCIETY AND IS WILLING TO CONTRIBUTE TO THE ACHIEVEMENT OF THOSE OBJECTIVES IS ELIGIBLE FOR MEMBERSHIP. STUDENT MEMBER - ANY INDIVIDUAL FORMALLY ENROLLED IN A PROGRAM OF STUDY WHICH INCLUDES ASPECTS OF HEALTH ECONOMICS OR HEALTH OUTCOMES RESEARCH IN THE STUDY CURRICULUM AND SUPPORTS THE MISSION OF THE SOCIETY IS ELIGIBLE FOR STUDENT MEMBERSHIP. STUDENT MEMBERS ARE NOT PERMITTED TO HOLD OFFICER OR DIRECTOR POSITIONS. FELLOW - ANY MEMBER WHO IS DEEMED TO HAVE MADE A MERITORIOUS CONTRIBUTION TO THE ADVANCEMENT OF HEALTH ECONOMICS AND/OR OUTCOMES RESEARCH AS DEFINED BY THE ISPOR BOARD. NEW PROFESSIONAL - ANY INDIVIDUAL WITH THREE YEARS OR LESS PROFESSIONAL EXPERIENCE IN HEALTH ECONOMICS OR OUTCOMES RESEARCH. RETIRED MEMBERS - ANY MEMBER WITH TEN OR MORE YEARS OF PAID ISPOR MEMBERSHIP AND WORKING LESS THAN HALF TIME (TWENTY OR FEWER HOURS PER WEEK).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS, STUDENT MEMBERS, FELLOWS, NEW PROFESSIONALS, AND RETIRED MEMBERS HAVE THE RIGHT VOTE FOR BOARD OFFICERS AND DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ISPOR FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. THE REVIEW OF THE FORM 990 BEFORE FILING IS DELEGATED TO THE CEO AND EXECUTIVE DIRECTOR BY THE BOARD OF DIRECTORS. THE COMPLETED FORM 990 IS AVAILABLE FOR REVIEW BY THE BOARD OF DIRECTORS AND THE MEMBERSHIP AFTER FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>TO INSURE COMPLIANCE WITH THE ORGANIZATION'S CONFLICT OF INTEREST POLICY, BOARD MEMBERS, OFFICERS AND EMPLOYEES AGREE TO COMPLY WITH THE POLICY BY COMPLETING AND SIGNING A CONFLICT OF INTEREST STATEMENT. EVERY YEAR THE BOARD HAS THE RESPONSIBILITY OF ENSURING COMPLIANCE WITH THE POLICY, ADMINISTERING THE ANNUAL QUESTIONNAIRE AND MAKING DECISIONS AS REQUIRED TO AVOID ACTUAL CONFLICT OF INTEREST. THE BOARD ALSO REVIEWS AND REVISES THIS POLICY AS NEEDED IN THE EVENT OF AN ACTUAL CONFLICT OF INTEREST OR THE APPEARANCE OF A CONFLICT OF INTEREST, INTERESTED PARTY MUST DISCLOSE THE NATURE OF THE CONFLICT AND HE/SHE SHALL NOT BE PRESENT IN THE BOARD OR COMMITTEE DELIBERATIONS OR VOTE ON THE MATTER. COMPLETED CONFLICT OF INTEREST FORMS ARE INCLUDED ON BOARD AGENDAS, AND RECORDED IN THE BOARD MINUTES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE, EXCLUDING THE EXECUTIVE DIRECTOR, CONDUCTS AN ANNUAL REVIEW OF THE EXECUTIVE DIRECTOR'S PERFORMANCE INCLUDING ACCOMPLISHMENTS VERSUS PRE-SPECIFIED GOALS AS WELL AS THE PERFORMANCE OF THE ORGANIZATION. BENCHMARKING OF THE COMPENSATION OF THE EXECUTIVE DIRECTOR IS DETERMINED USING ASSOCIATION CHIEF STAFF EXECUTIVE COMPENSATION SURVEYS BY THE AMERICAN SOCIETY OF ASSOCIATION EXECUTIVES (ASAE). COMPENSATION OF THE EXECUTIVE DIRECTOR IS ALSO DETERMINED WITH THE USE OF COMPENSATION SURVEYS AND THE FORM 990 OF SIMILAR ORGANIZATIONS. THE EXECUTIVE COMMITTEE NEGOTIATES AN EMPLOYMENT AGREEMENT WITH THE EXECUTIVE DIRECTOR AND THEN DETERMINES THE EXECUTIVE DIRECTOR'S COMPENSATION, THROUGH A FORMAL VOTE IN PRIVATE SESSIONS, WITHOUT THE EXECUTIVE DIRECTOR'S PRESENCE. THE FINAL AGREEMENT AND SALARY DETERMINATION IS DOCUMENTED IN A TIMELY COMMUNICATION FROM THE PRESIDENT ON BEHALF OF THE EXECUTIVE COMMITTEE AUTHORIZING THE EXECUTIVE DIRECTOR'S COMPENSATION. THIS COMMUNICATION IS RETAINED WITH THE ISPOR PAYROLL RECORDS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ISPOR MAKES ITS FINANCIAL STATEMENTS, CONFLICT OF INTEREST POLICY AND GOVERNING DOCUMENTS AVAILABLE UPON WRITTEN REQUESTS SUBMITTED TO ISPOR'S ADDRESS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
