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      <InvestmentExpensesNotIncldAmt>48123</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>48123</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>9813666</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>11255004</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>11255004</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>48123</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>48123</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>11303127</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ENDOWMENT CONSISTS OF DONOR-RESTRICTED AND BOARD-DESIGNATED ENDOWMENT FUNDS FOR THE PURPOSE OF PROVIDING SCHOLARSHIPS OR GRANTS TO INDIVIDUALS FOR RESEARCH IN BIOMOLECULAR DISCOVERY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY FOLLOWS THE REQUIREMENTS FOR ACCOUNTING FOR UNCERTAIN TAX POSITIONS. THE SOCIETY HAS DETERMINED THAT IT IS NOT REQUIRED TO RECORD A LIABILITY RELATED TO UNCERTAIN TAX POSITIONS AS OF DECEMBER 31, 2025 AND 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>U MASS AMHERST</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>300 MASSACHUSETTS AVENUE</AddressLine1Txt>
          <CityNm>AMHERST</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01003</ZIPCd>
        </USAddress>
        <RecipientEIN>542084125</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>SLAS FELLOWSHIP GRANT PROGRAM</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF MICHIGAN</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1000 VICTORS WAY</AddressLine1Txt>
          <CityNm>ANN ARBOR</CityNm>
          <StateAbbreviationCd>MI</StateAbbreviationCd>
          <ZIPCd>48108</ZIPCd>
        </USAddress>
        <RecipientEIN>386006309</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>SLAS FELLOWSHIP GRANT PROGRAM</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF MARYLAND BALTIMORE COUNTY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1000 HILLTOP CIRCLE</AddressLine1Txt>
          <CityNm>BALTIMORE</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21250</ZIPCd>
        </USAddress>
        <RecipientEIN>526002033</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>12500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>SLAS FELLOWSHIP GRANT PROGRAM</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>3</Total501c3OrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>INNOVATION INITIATIVE IGNITE AWARD</GrantTypeTxt>
        <RecipientCnt>13</RecipientCnt>
        <CashGrantAmt>24205</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAVEL AWARDS</GrantTypeTxt>
        <RecipientCnt>42</RecipientCnt>
        <CashGrantAmt>122892</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS AND AWARDS ARE FUNDED UPON COMPLETION OF A SPECIFIC REQUIREMENT AS DEFINED BY AN OVERSIGHT COMMITTEE. NO GRANTS OR AWARDS ARE PRE-FUNDED.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <SubstantiationRequiredInd>1</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <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>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>VICKI LOISE</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>240699</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>79555</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>34916</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>32040</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>387210</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>AMY WILKINSON</PersonNm>
        <TitleTxt>DIRECTOR OF GLOBAL EVENTS</TitleTxt>
        <BaseCompensationFilingOrgAmt>163301</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>41491</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16358</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11263</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>232413</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JILL HRONEK</PersonNm>
        <TitleTxt>DIRECTOR OF MARKETING &amp; CO</TitleTxt>
        <BaseCompensationFilingOrgAmt>132436</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>29804</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13260</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11635</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>187135</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARY GEISMANN</PersonNm>
        <TitleTxt>DIRECTOR OF MEMBERSHIP &amp; E</TitleTxt>
        <BaseCompensationFilingOrgAmt>122389</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>28093</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12254</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>343</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>163079</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR THE CEO IS ESTABLISHED BY A COMPENSATION COMMITTEE MADE UP OF INDEPENDENT DIRECTORS. COMPENSATION IS DETERMINED BASED UPON A REVIEW AND EVALUATION OF PERFORMANCE AND IS SUBJECT TO THE APPROVAL OF THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>SLAS IS A PROFESSIONAL ORGANIZATION WITH MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS OF SLAS ELECT A BOARD OF DIRECTORS WHICH IS THE REPRESENTATIVE BODY OF THE SOCIETY, SERVING FOR THE BENEFIT OF THE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM . THE PREPARER PROVIDES A DRAFT COPY TO THE CHIEF EXECUTIVE OFFICER FOR REVIEW BEFORE IT IS MADE AVAILABLE TO THE BOARD OF DIRECTORS. A COPY OF FORM 990 IS MADE AVAILABLE TO THE BOARD OF DIRECTORS ON A WEB PORTAL. BOARD OF DIRECTORS INQUIRIES REGARDING THE FORM 990 ARE TO BE DIRECTED TO THE CEO AND PREPARER FOR RESOLUTION PRIOR TO FILING THE FORM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY OF SLAS REQUIRES THE DIRECTORS, OFFICERS, AND EMPLOYEES TO ANNUALLY DISCLOSE INTERESTS THAT COULD GIVE RISE TO A CONFLICT BY COMPLETING AN ANNUAL CONFLICT OF INTEREST DISCLOSURE STATEMENT. COMMITTEE MEMBERS ARE REQUIRED TO PROVIDE A CONFLICT OF INTEREST DISCLOSURE AT THE BEGINNING OF THEIR TERM (WHICH LAST ONE TO THREE YEARS).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR THE CEO IS ESTABLISHED BY A COMPENSATION COMMITTEE MADE UP OF INDEPENDENT DIRECTORS INCLUDING UTILIZATION OF COMPARABLE COMPENSATION DATA AND IS SUBJECT TO THE APPROVAL OF THE BOARD OF DIRECTORS. THE CEO REVIEWS AND SETS THE COMPENSATION OF THE COO AND OTHER KEY EMPLOYEES, IF ANY, WITHIN THE WAGE RATE OR SALARY RANGE APPROVED BY THE BOARD OF DIRECTORS AND ALSO UTILIZES COMPENSATION SURVEYS FOR COMPARABLE SOCIETIES IN MAKING THAT DECISION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>SLAS MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO MEMBERS THROUGH THEIR WEBSITE AND TO THE GENERAL PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>