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        <PersonNm>DR DANNY WELCH</PersonNm>
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        <PersonNm>SONYA NEGLEY</PersonNm>
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        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
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      <RecipientTable>
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      <RecipientTable>
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          <AddressLine1Txt>291 CAMPUS DR</AddressLine1Txt>
          <CityNm>STANFORD</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94305</ZIPCd>
        </USAddress>
        <RecipientEIN>941156365</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>200000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>THE UNIVERSITY OF KANSAS MEDICAL CENTER (KUMC)</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3901 RAINBOW BLVD MS 1039</AddressLine1Txt>
          <CityNm>KANSAS CITY</CityNm>
          <StateAbbreviationCd>KS</StateAbbreviationCd>
          <ZIPCd>66160</ZIPCd>
        </USAddress>
        <RecipientEIN>481108830</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>200000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>THE UNIVERSITY OF TEXAS MD ANDERSON CANCER CENTER</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 4266</AddressLine1Txt>
          <CityNm>HOUSTON</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77210</ZIPCd>
        </USAddress>
        <RecipientEIN>746001118</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>LAB CENTRAL</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>700 MAIN ST NORTH</AddressLine1Txt>
          <CityNm>CAMBRIDGE</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02139</ZIPCd>
        </USAddress>
        <RecipientEIN>461031913</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>450000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF CALIFORNIA SAN FRANCISCO</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 748872</AddressLine1Txt>
          <CityNm>LOS ANGELES</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>90074</ZIPCd>
        </USAddress>
        <RecipientEIN>946036493</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>900000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>5323 HARRY HAINES BLVD</AddressLine1Txt>
          <CityNm>DALLAS</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>75390</ZIPCd>
        </USAddress>
        <RecipientEIN>750945939</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>200000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>WEILL MEDICAL COLLEGE OF CORNELL UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>757 LEXINGTON AVE 9TH FLOOR</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10022</ZIPCd>
        </USAddress>
        <RecipientEIN>150532082</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>200000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>11</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>METAVIVOR GRANTS ARE AWARDED TO ESTABLISHED AND EARLY CAREER RESEARCHERS WITH MD AND/OR PHD DEGREES IN RELEVANT FIELDS, WHO ARE CONDUCTING RESEARCH AT ACCREDITED COLLEGES AND UNIVERSITIES, OR OTHER RESPECTED RESEARCH INSTITUTIONS SUCH AS THE NATIONAL CANCER INSTITUTE. GRANT AWARDEES ARE CHOSEN BASED ON A RIGOROUS PEER REVIEW PROCESS WHEREIN PROPOSALS ARE SCORED BASED ON RESEARCH MERIT, BUDGET, SUITABILITY OF FACILITIES, AND OTHER CRITERIA. SELECTION CRITERIA ARE DOCUMENTED FOR EACH GRANT CYCLE IN THE PUBLICLY RELEASE REQUEST FOR PROPOSALS. AWARDED GRANTS ARE MONITORED FOR APPROPRIATE USE OF FUNDS AT LEAST QUARTERLY. SECOND YEAR FUNDING IS CONTINGENT UPON ACCEPTANCE BY THE BOARD OF DIRECTORS OF A YEAR ONE PROGRESS REPORT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <SeverancePaymentInd>1</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>SONYA NEGLEY</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR (THRU OCT 2024)</TitleTxt>
        <BaseCompensationFilingOrgAmt>121142</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>77225</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>1000</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>199367</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>SONYA NEGLEY RECEIVED A SEVERANCE PAYMENT OF $77,225 FROM THE ORGANIZATION IN 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A DRAFT OF THE FORM 990 IS PROVIDED TO THE BOARD FOR REVIEW PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS REQUIRES EACH INTERESTED PERSON TO DISCLOSE ANY FINANCIAL INTEREST IN, OR ROLE IN THE GOVERNANCE OF, ANY OTHER CORPORATION, FIRM, ASSOCIATION, OR OTHER ENTITY CONTRACTING OR ENGAGING IN ANY OTHER TRANSACTION WITH METAVIVOR. AS SOON AS IS PRACTICABLE AFTER DETERMINING THAT A POTENTIAL CONFLICT OF INTEREST EXISTS, THE BOARD OF DIRECTORS SHALL FIRST DELIBERATE THE MATTER AFTER THE POTENTIALLY INTERESTED PERSON SUPPLIES SUCH INFORMATION AS THE BOARD OF DIRECTORS SHALL REQUEST, RECUSES HIMSELF OR HERSELF, AND LEAVES THE MEETING, AND THEN THE BOARD OF DIRECTORS SHALL DECIDE IF A CONFLICT OF INTEREST EXISTS. IN THE CASE OF ALL COMPENSATION ARRANGEMENTS AND ALL OTHER ARRANGEMENTS WHERE THE BOARD OF DIRECTORS DETERMINES THAT THERE IS A CONFLICT, THE BOARD OF DIRECTORS SHALL A. REQUIRE THAT THE INTERESTED PERSON LEAVE THE MEETING DURING THE DISCUSSION OF, AND THE VOTE ON, THE TRANSACTION OR ARRANGEMENT THAT MAY CREATE THE CONFLICT OF INTEREST AND B. ENTER INTO THE TRANSACTION ONLY IF THE BOARD OF DIRECTORS DETERMINES, BY A MAJORITY VOTE OF THE NONINTERESTED DIRECTORS THEN IN OFFICE, THAT THE TRANSACTION OR ARRANGEMENT IS IN METAVIVORS BEST INTERESTS AND FOR ITS OWN BENEFIT IS FAIR AND REASONABLE TO METAVIVOR AND, AFTER EXERCISING DUE DILIGENCE, DETERMINES THAT METAVIVOR CANNOT OBTAIN A MORE ADVANTAGEOUS TRANSACTION OR ARRANGEMENT WITH REASONABLE EFFORTS UNDER THE CIRCUMSTANCES. THE MINUTES OF THE BOARD OF DIRECTORS MEETINGS AND THE MEETINGS OF ANY COMMITTEE WITH BOARD DELEGATED POWERS SHALL INCLUDE 1. THE NAME OF EACH PERSON WHO DISCLOSES AN INTEREST, THE NATURE OF THAT INTEREST, AND WHETHER THE BOARD OF DIRECTORS HAS DETERMINED THAT THERE IS A CONFLICT OF INTEREST 2. COPIES OF ALL DOCUMENTS DESCRIBING THE OTHER ALTERNATIVES TO THE PROPOSED TRANSACTION, COMPARABLE SALARIES, AND ANY OTHER DUE DILIGENCE APPROPRIATE TO THE TRANSACTION AND 3. THE NAMES OF THE PERSONS WHO WERE PRESENT FOR DISCUSSIONS AND VOTES RELATING TO THE TRANSACTION OR ARRANGEMENT AND THE CONTENT OF THOSE DISCUSSIONS, INCLUDING ANY ALTERNATIVES TO THE PROPOSED TRANSACTION OR ARRANGEMENT, AND A RECORD OF THE VOTE. THE BOARD OF DIRECTORS SHALL ENSURE THAT THIS POLICY IS DISTRIBUTED TO ALL INTERESTED PERSONS. EACH SUCH PERSON SHALL SIGN AN ANNUAL STATEMENT, IN THE FORM ATTACHED HERETO, THAT THE PERSON 1. RECEIVED A COPY OF THE POLICY 2. HAS READ AND UNDERSTANDS THE POLICY 3. AGREES TO COMPLY WITH THE POLICY 4. UNDERSTANDS THAT THE POLICY APPLIES TO ALL COMMITTEES AND SUBCOMMITTEES HAVING BOARD DESIGNATED POWERS AND 5. UNDERSTANDS THAT METAVIVOR IS A CHARITABLE ORGANIZATION AND THAT IN ORDER TO MAINTAIN ITS TAX EXEMPT STATUS, IT MUST EXCLUSIVELY ENGAGE IN ACTIVITIES WHICH ARE DIRECTED TOWARDS THE ACCOMPLISHMENT OF ONE OR MORE OF ITS TAX-EXEMPT PURPOSES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BYLAWS OF METAVIVOR RESEARCH AND SUPPORT INC. ESTABLISH A COMPENSATION COMMITTEE THAT HAS GENERAL OVERSIGHT OF THE ORGANIZATIONS HUMAN RESOURCE PLAN. SPECIFIC DUTIES INCLUDE YEARLY EVALUATION OF THE EXECUTIVE DIRECTOR OF THE ORGANIZATION. A COMPETENT SALARY SURVEY IS USED TO BENCHMARK THE COMPENSATION FOR THE POSITION UTILIZING INDUSTRY-SPECIFIC REPORTS AND OTHER STUDIES. THE COMMITTEE MEETS INDEPENDENTLY OF THE CHIEF EXECUTIVE TO DISCUSS PERFORMANCE RELATIVE TO THE POSITION DESCRIPTION. DURING THESE DELIBERATIONS, THE COMMITTEE ALSO CONSIDERS INPUT OBTAINED FROM OTHER BOARD MEMBERS, STAFF, PROFESSIONAL ADVISORS, GRANT RECIPIENTS, AND OTHER INFORMED COMMUNITY LEADERS. THESE DISCUSSIONS ARE DOCUMENTED CONTEMPORANEOUSLY IN WRITING. ONCE A CONSENSUS IS REACHED REGARDING PERFORMANCE A SIMILAR DISCUSSION IS HELD CONCERNING COMPENSATION RELATIVE TO ANNUAL BENCHMARK AND ESTABLISHED OBJECTIVES. THE COMMITTEE PRESENTS ITS FINDINGS AND RECOMMENDATIONS, IN AN EXECUTIVE SESSION WITHOUT THE CHIEF EXECUTIVE PRESENT, TO THE FULL BOARD FOR REVIEW AND APPROVAL. THE COMMITTEE AND/OR BOARD CHAIR A MEMBER OF THE COMMITTEE THEN MEET WITH THE CHIEF EXECUTIVE OFFICER TO DISCUSS AND DOCUMENT STRENGTHS, WEAKNESSES, AND GOALS FOR THE UPCOMING YEAR. COMPENSATION FOR THE UPCOMING YEAR IS ALSO DISCUSSED AND DOCUMENTED. THESE DISCUSSIONS ARE DOCUMENTED CONTEMPORANEOUSLY IN WRITING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>