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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANT-MAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>20000</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANT-MAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>20000</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANT-MAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>20000</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>103956</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>103956</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <PurposeOfGrantTxt>COVID-19 SUPPORT</PurposeOfGrantTxt>
        <CashGrantAmt>20000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>ELECTRONIC FUND/WIRE TRANSFER</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <PurposeOfGrantTxt>COVID-19 SUPPORT</PurposeOfGrantTxt>
        <CashGrantAmt>20000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>ELECTRONIC FUND/WIRE TRANSFER</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <PurposeOfGrantTxt>COVID-19 SUPPORT</PurposeOfGrantTxt>
        <CashGrantAmt>20000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>ELECTRONIC FUND/WIRE TRANSFER</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <TotalOtherOrgCnt>3</TotalOtherOrgCnt>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GRANTS STIPULATED THE PURPOSE OF THE FUNDS TO THE RECIPIENT IN A GRANT LETTER AND WHAT THE FUNDS SHOULD BE USED FOR AND THE ORGANIZATION OBTAINED ACTUAL RECEIPTS FOR THE GRANTS PROVIDED TO VALIDATE THE FUNDING WAS USED FOR THE PURPOSE INTENDED</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCRUAL METHOD USED; EXPENDITURES IN REGION</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCRUAL METHOD USED</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>STANFORD UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3145 PORTER DRIVE</AddressLine1Txt>
          <CityNm>PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94304</ZIPCd>
        </USAddress>
        <RecipientEIN>941156365</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>11133566</CashGrantAmt>
        <PurposeOfGrantTxt>SCIENTIFIC AND MEDICAL RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UC SAN FRANCISCO</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 0248</AddressLine1Txt>
          <CityNm>SAN FRANCISCO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94143</ZIPCd>
        </USAddress>
        <RecipientEIN>946036493</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>8886379</CashGrantAmt>
        <PurposeOfGrantTxt>SCIENTIFIC AND MEDICAL RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UC BERKELEY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2195 HEARST AVE RM 120 MC 1104</AddressLine1Txt>
          <CityNm>BERKELEY</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94720</ZIPCd>
        </USAddress>
        <RecipientEIN>946002123</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>4690000</CashGrantAmt>
        <PurposeOfGrantTxt>SCIENTIFIC AND MEDICAL RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>3</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>WITH REGARD TO INVESTIGATOR AWARDS UNDER A MASTER COLLABORATION AGREEMENT WITH THREE UNIVERSITIES, THE BIOHUB OBLIGATES THE USE OF THE GIFT FUNDS ONLY FOR THE PURPOSE FOR WHICH THE BIOHUB MAKES THE AWARDS. WE REQUIRE WRITTEN REPORTS CONCERNING THE RESEARCH DONE BY THE RECIPIENTS. THE FUNDS ARE PROVIDED TO THE UNIVERSITIES EMPLOYING THE RECIPIENTS AND THE UNIVERSITIES DISBURSE THE FUNDS ACCORDING TO THEIR POLICIES REGARDING BOTH PROPRIETY AND PROCESS (INCLUDING SUBSTANTIATION). FROM TIME TO TIME, THE BIOHUB MAY ALSO MAKE SMALL DISCRETIONARY GIFTS FOR RESEARCH AND SIMILAR PURPOSES DIRECTLY TO RECIPIENTS WITHOUT THE NEED FOR A WRITTEN PROPOSAL AND WITH LIMITED AND/OR WITHOUT A POST-GRANT REVIEW BY THE BIOHUB.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <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>JOSEPH DERISI</PersonNm>
        <TitleTxt>CO-PRESIDENT</TitleTxt>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1242</OtherCompensationFilingOrgAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <DeferredCompensationFlngOrgAmt>7291</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>38670</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <TotalCompensationFilingOrgAmt>758110</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <TitleTxt>VP OF HUMAN RESOURCE</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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        <NontaxableBenefitsFilingOrgAmt>28318</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>317051</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOSHUA E ELIAS-MERRIMAN</PersonNm>
        <TitleTxt>PLATFORM LEADER</TitleTxt>
        <BaseCompensationFilingOrgAmt>194133</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>62954</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>431</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>29783</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>287301</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>INCENTIVE COMPENSATION WAS PROVIDED TO CERTAIN PERSONS LISTED ON PART VII OF THE FORM 990. INCENTIVE COMPENSATION WAS PAID BASED ON A FIXED PERCENTAGE OF BASE COMPENSATION, PLUS AN ADDITIONAL DISCRETIONARY PERCENTAGE SUBJECT TO BOARD APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <BusinessName>
            <BusinessNameLine1Txt>CHAN ZUCKERBERG INITIATIVE LLC (CZI)</BusinessNameLine1Txt>
          </BusinessName>
        </NameOfInterested>
        <RelationshipDescriptionTxt>ENTITY MANAGED BY DIRECTORS MARK ZUCKERBERG AND PRISCILLA CHAN</RelationshipDescriptionTxt>
        <TransactionAmt>338561</TransactionAmt>
        <TransactionDesc>COLLABORATION REVENUE PAID FROM CZI TO BIOHUB</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>COMMON AREA MAINTENANCE</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>734398</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COST OR SELLING PRIC</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>LAB EQUIPMENT</Desc>
        <ContributionCnt>2</ContributionCnt>
        <NoncashContributionsRptF990Amt>28998</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COST OR SELLING PRIC</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>LAB SUPPLIES</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>9122</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>COST OR SELLING PRIC</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>1</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>COLUMN (B) REPRESENTS THE NUMBER OF CONTRIBUTIONS</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>DR. CHAN (DIRECTOR) AND MR. ZUCKERBERG (DIRECTOR) HAVE A FAMILY RELATIONSHIP. CORI BARGMANN, DR. CHAN AND MR. ZUCKERBERG HAVE A BUSINESS RELATIONSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CHAN ZUCKERBERG INITIATIVE, LLC DESIGNATES TWO DIRECTORS TO THE BOARD (DESIGNATED DIRECTORS). SUCH DESIGNATED DIRECTORS APPROVE THE APPOINTING, ELECTING, OR REMOVING OF ANY DIRECTOR OF THE ORGANIZATION INCLUDING THE FILLING OF ANY VACANCY OF THE BOARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNANCE DECISIONS ARE SUBJECT TO APPROVAL BY THE TWO DESIGNATED DIRECTORS INCLUDING: -CHANGING THE NATURE OR SCOPE OF THE MISSION. -CHANGING, SELLING OR LICENSING THE NAME OF THE CORPORATION. -APPROVING OR PERMITTING THE USE OF OTHER EXPLOITATION OF THE NAME OF THE CORPORATION BY ANY PARTY, OTHER THAN THE DESIGNATOR, ANY AFFILIATE OR AFFILIATED ENTITY OF THE DESIGNATOR AND, SOLELY IN CONNECTION WITH THE CORPORATION'S ACTIVITIES IN FURTHERANCE OF THE MISSION. -APPOINTING, ELECTING OR REMOVING ANY DIRECTOR OF THE CORPORATION AND FILLING OF ANY VACANCY OF THE BOARD. -INCREASING OR DECREASING THE NUMBER OF DIRECTOR SEATS ON THE BOARD. -APPOINTING, ELECTING OR REMOVING THE CHAIRPERSON -ACCEPTING CONTRIBUTIONS FROM ANY PARTY OTHER THAN FROM THE DESIGNATOR, ANY AFFILIATE OR AFFILIATED ENTITY OF THE DESIGNATOR, OR ANY DONOR ADVISED FUND IN WHICH THE DESIGNATION OR AFFILIATE HAVE ADVISORY PRIVILEGES. OTHER PARTY FUNDING CAN BE ACCEPTED IF THE DESIGNATOR FUNDING SOURCE HAS A MATERIAL BREACH AND ADDITIONAL FUNDING IS NEEDED. -APPROVAL OR EFFECTING OF A MATERIAL SALE OF ASSETS OR MERGER OF THE ORGANIZATION OR CONVERSION INTO ANOTHER FORM OF ENTITY. -APPROVAL OF ACTION CAUSING CHANGE FROM EXEMPT STATUS UNDER 501(A) OF THE CODE. -APPROVAL FOR COMMENCING BANKRUPTCY, INSOLVENCY OR RELIEF OF DEBTORS. -APPROVAL, PERMITTING OR EFFECTING ANY TRANSACTION TO LIQUIDATE, WIND UP OR DISSOLVE THE CORPORATION. -APPROVAL FOR CHANGE TO ORGANIZATION DOCUMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PREPARED BY OUR TAX CONSULTANTS. THE DRAFT IS REVIEWED BY THE CFO OF THE ORGANIZATION. THE FORM 990 IS THEN MADE AVAILABLE TO THE BOARD PRIOR TO THE 990 BEING FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH COVERED PERSON MUST DISCLOSE IN WRITING TO THE CHIEF CONFLICTS OFFICER EACH OF HIS OR HER CONFLICTS OF INTEREST, INCLUDING FINANCIAL INTERESTS, WHEN THEY JOIN THE COMPANY. TO ENSURE THAT POTENTIAL CONFLICTS OF INTEREST AND CONFLICTS OF COMMITMENT ARE DISCLOSED, EACH COVERED PERSON IS REQUIRED TO UPDATE THEIR DISCLOSURE PERIODICALLY THROUGHOUT THE YEAR AT ANY TIME WHEN HIS OR HER PREVIOUSLY DISCLOSED FINANCIAL INTERESTS CHANGE OR A NEW POTENTIAL CONFLICT OF COMMITMENT OR CONFLICT OF INTEREST ARISES. IN ADDITION, CERTAIN EMPLOYEES AT THE LEVEL OF GROUP OR PLATFORM LEADER OR ABOVE ARE REQUIRED TO FILE UPDATED DISCLOSURE STATEMENTS EACH YEAR. THE BOARD OF DIRECTORS APPROVED THE CONFLICT OF COMMITMENT AND CONFLICT OF INTEREST POLICY FOR THE BIOHUB, WHICH OUTLINES THE MECHANISMS FOR IMPLEMENTING THE POLICY. THE CHIEF CONFLICTS OFFICER OR IN SOME INSTANCES, THE BOARD OF DIRECTORS OR A COMMITTEE DESIGNATED BY THE BOARD IS RESPONSIBLE FOR INTERPRETING BOTH CONFLICTS OF COMMITMENT AND CONFLICTS OF INTEREST UNDER THE POLICY. THE CHIEF CONFLICTS OFFICER'S PRIMARY RESPONSIBILITY IS DETERMINING WHETHER A CONFLICT OF COMMITMENT OR CONFLICT OF INTEREST EXISTS AND, IF SO, WHETHER THE PROPOSED ACTIVITY OR THE TRANSACTION OR ARRANGEMENT GIVING RISE TO THE CONFLICT IS IN THE BEST INTERESTS OF THE BIOHUB AND CAN PROCEED IN A MANNER THAT PROTECTS THE BIOHUB'S FINANCIAL, SCIENTIFIC, AND REPUTATIONAL INTERESTS. WHEN A COVERED PERSON DISCLOSES AN ACTUAL OR POTENTIAL CONFLICT OF COMMITMENT OR CONFLICT OF INTEREST UNDER THIS POLICY, THE CHIEF CONFLICTS OFFICER WILL FOLLOW THE REVIEW PROCEDURES OUTLINED IN THE POLICY. A COVERED PERSON MAY NOT ENGAGE IN ANY ACTIVITY THAT GIVES RISE TO A CONFLICT OF COMMITMENT OR A CONFLICT OF INTEREST WITHOUT RECEIVING THE APPROVAL(S) REQUIRED IN THIS POLICY. WITH RESPECT TO ANY CONFLICT OF INTEREST, THE COVERED PERSON WILL BE RECUSED FROM ALL DECISIONS INVOLVING THE ACTIVITY GIVING RISE TO THE CONFLICT, AND THE CHIEF CONFLICTS OFFICER, THE BOARD OF DIRECTORS, OR A COMMITTEE DESIGNED BY THE BOARD WILL DETERMINE WHETHER TO PROCEED WITH THE ACTIVITY NOTWITHSTANDING THE CONFLICT. IF THE COVERED PERSON INVOLVED IN THE POTENTIAL OR ACTUAL CONFLICT UNDER REVIEW IS AN OFFICER OF THE BIOHUB, THE CONFLICT REVIEW PROCEDURES WILL BE PERFORMED BY THE BOARD OF DIRECTORS OR A COMMITTEE DESIGNATED BY THE BOARD, ASSISTED BY THE CHIEF CONFLICTS OFFICERAND, IF REQUESTED BY THE BOARD OR COMMITTEE, OUTSIDE COUNSEL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS AND EXECUTIVE COMMITTEE OF THE BOARD REVIEW AND APPROVE THE COMPENSATION OF THE ORGANIZATION'S CO-PRESIDENTS. THE PROCESS INCLUDES A REVIEW OF THE COMPENSATION AGAINST COMPARABILITY DATA SURVEY PROVIDED PERIODICALLY BY AN INDEPENDENT COMPENSATION SERVICE. THE APPROVAL PROCESS IS DOCUMENTED CONTEMPORANEOUSLY. THE MOST RECENT COMPARABILITY DATA STUDY WAS COMPLETED IN 2018 AND WAS USED TO SET 2019 AND 2020 COMPENSATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>UPON REQUEST, DOCUMENTS THAT ARE REQUIRED BY LAW TO BE AVAILABLE FOR PUBLIC INSPECTION WILL BE MADE AVAILABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 16B</FormAndLineReferenceDesc>
        <ExplanationTxt>BIOHUB HAS EXECUTED CERTAIN WRITTEN COLLABORATION AGREEMENTS IN FURTHERANCE OF ITS EXEMPT MISSION. SUCH CONTRACTS ARE EXECUTED ON TERMS THAT ARE AT ARM'S LENGTH OR MORE FAVORABLE TO BIOHUB.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VII, SECTION A</FormAndLineReferenceDesc>
        <ExplanationTxt>WHERE 40 HOURS IS LISTED AS HOURS OF SERVICE IN RESPECT OF AN INDIVIDUAL, THIS IS BASED ON AN ESTIMATED FULL-TIME WORK WEEK. ACTUAL HOURS DEVOTED BY THE INDIVIDUAL MAY VARY SIGNIFICANTLY, AND MAY EXCEED THE 40 HOUR ESTIMATE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CHAN ZUCKERBERG INITIATIVE ADVOCACY</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>314 LYTTON AVENUE SUITE 200</AddressLine1Txt>
          <CityNm>PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94301</ZIPCd>
        </USAddress>
        <EIN>813742328</EIN>
        <PrimaryActivitiesTxt>SOCIAL WELFARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(4)</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CHAN ZUCKERBERG INITIATIVE FOUNDATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>314 LYTTON AVENUE SUITE 200</AddressLine1Txt>
          <CityNm>PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94301</ZIPCd>
        </USAddress>
        <EIN>455002209</EIN>
        <PrimaryActivitiesTxt>GRANTMAKING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>PF</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE PRIMARY SCHOOL LAB</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1765 E BAYSHORE RD SUITE A2</AddressLine1Txt>
          <CityNm>E PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94303</ZIPCd>
        </USAddress>
        <EIN>364858582</EIN>
        <PrimaryActivitiesTxt>SOCIAL WELFARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(4)</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE PRIMARY SCHOOL - EAST PALO ALTO</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>2086 CLARKE STREET</AddressLine1Txt>
          <CityNm>E PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94303</ZIPCd>
        </USAddress>
        <EIN>473334579</EIN>
        <PrimaryActivitiesTxt>EDUCATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 2</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>OPENNESS FOUNDATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>314 LYTTON AVENUE SUITE 200</AddressLine1Txt>
          <CityNm>PALO ALTO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94301</ZIPCd>
        </USAddress>
        <EIN>270889149</EIN>
        <PrimaryActivitiesTxt>GRANTMAKING</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>PF</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>GRADIENT LEARNING</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>340 S LEMON AVE 6119</AddressLine1Txt>
          <CityNm>WALNUT</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91789</ZIPCd>
        </USAddress>
        <EIN>352645251</EIN>
        <PrimaryActivitiesTxt>EDUCATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>FWDUS EDUCATION FUND INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO BOX 34506</AddressLine1Txt>
          <CityNm>WASHINGTON DC</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>20043</ZIPCd>
        </USAddress>
        <EIN>820962378</EIN>
        <PrimaryActivitiesTxt>EDUCATE THE PUBLIC ABOUT IMMIGRATION AND CRIMINAL JUSTICE POLICY AND REFORM</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>FWDUS INC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>FWDUS INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO BOX 34506</AddressLine1Txt>
          <CityNm>WASHINGTON DC</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>20043</ZIPCd>
        </USAddress>
        <EIN>462223015</EIN>
        <PrimaryActivitiesTxt>ADVOCATE FOR IMMIGRATION AND CRIMINAL JUSTICE REFORM</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(4)</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>FACEBOOK INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>1601 WILLOW ROAD</AddressLine1Txt>
          <CityNm>MENLO PARK</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94025</ZIPCd>
        </USAddress>
        <EIN>201665019</EIN>
        <PrimaryActivitiesTxt>SOCIAL MEDIA SERVICE COMPANY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART II AND PART IV</FormAndLineReferenceDesc>
        <ExplanationTxt>ONE OF THE MANAGERS OF CHAN ZUCKERBERG INITIATIVE, LLC ("CZI") ALSO HAS A CONTROLLING INTEREST IN SEVERAL PASSIVE INVESTMENT VEHICLES. THESE INVESTMENT VEHICLES, THE TAX-EXEMPT ENTITIES DISCLOSED UNDER PART II ABOVE, AND FACEBOOK AS DISCLOSED UNDER PART IV ABOVE, MAY TECHNICALLY BE CONSIDERED "RELATED ORGANIZATIONS" OF THE BIOHUB FOR IRS FORM 990 REPORTING PURPOSES THROUGH THEIR RELATIONSHIP WITH ONE OF CZI'S MANAGERS, GIVEN CZI'S RELATIONSHIP WITH THE BIOHUB. EACH OF THESE DISCLOSED ENTITIES IS OTHERWISE UNAFFILIATED WITH AND DOES NOT CONTROL THE BIOHUB, AND THE BIOHUB'S DATA IS NOT SOLD OR SHARED WITH FACEBOOK, THE PASSIVE INVESTMENT VEHICLES, OR ANY OF THE DISCLOSED TAX-EXEMPT ENTITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
