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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part II, Line 10, Explanation of Other Income:</FormAndLineReferenceDesc>
        <ExplanationTxt>Other Income - 2021 Amount: $ 39,270. 2022 Amount: $ 48,412. 2023 Amount: $ 250,510. 2024 Amount: $ 0. 2025 Amount: $ 0. Reimbursements - 2021 Amount: $ 0. 2022 Amount: $ 0. 2023 Amount: $ 0. 2024 Amount: $ 0. 2025 Amount: $ 182,007.</ExplanationTxt>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II, Short Year Explanation:</FormAndLineReferenceDesc>
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        <TitleTxt>Chief of Staff</TitleTxt>
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        <PersonNm>Jon Epstein</PersonNm>
        <TitleTxt>VP for Science and Outreach</TitleTxt>
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        <PersonNm>Joseph Riccardi</PersonNm>
        <TitleTxt>Acting CFO</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kevin Olival</PersonNm>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>Upon notification of the entity's dissolution, listed persons were awarded serverance packages. The amounts were included in taxable compensation on each person's W-2 and are reported on Sch J, Part II, Column (B)(iii).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 7</FormAndLineReferenceDesc>
        <ExplanationTxt>The bonuses are non-fixed and are merit based. The Board's Executive Committee reviewed and approved the bonuses bonuses based on performance.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleN documentId="RetDoc1043100001">
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>Attorney Fees</AssetsDistriOrExpnssPaidDesc>
          <DistributionDt>2025-12-12</DistributionDt>
          <FairMarketValueOfAssetAmt>152049</FairMarketValueOfAssetAmt>
          <MethodOfFMVDeterminationTxt>Actual cost - hourly rate.</MethodOfFMVDeterminationTxt>
          <BusinessName>
            <BusinessNameLine1Txt>Nutter McClennen &amp; Fish LLP</BusinessNameLine1Txt>
          </BusinessName>
          <USAddress>
            <AddressLine1Txt>155 Seaport Blvd</AddressLine1Txt>
            <CityNm>Boston</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02210</ZIPCd>
          </USAddress>
          <IRCSectionTxt>Limited Liability Partnership</IRCSectionTxt>
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      <EmployeeOfSuccessorInd>0</EmployeeOfSuccessorInd>
      <OwnerOfSuccessorInd>0</OwnerOfSuccessorInd>
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      <AssetsDistributedInd>1</AssetsDistributedInd>
      <RequiredToNotifyAGInd>1</RequiredToNotifyAGInd>
      <AttorneyGeneralNotifiedInd>1</AttorneyGeneralNotifiedInd>
      <LiabilitiesPaidInd>1</LiabilitiesPaidInd>
      <BondsOutstandingInd>0</BondsOutstandingInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>Once expenses were paid, the Organization had no remaining assets to distribute.Part I, Line 5:EcoHealth Alliance paid all debts it was capable of paying. There are remaining liabilities resulting primarily from disputed claims against the Organization, all of which have been disclosed to the Attorney General of Massachusetts. Upon review, the Attorney General's office signed a Final Notice of Dissolution under Massachusetts General Laws Chapter 180, 11A(c), a copy of which is attached.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleN>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>EcoHealth Alliance distributes completed copies of form 990 to the Chair, Vice Chair, Treasurer, and Audit Chair prior to filing. Any questions or changes are discussed with the preparer. After satisfactory review, the return is subsequently filed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The conflict of interest policy is contained in the Organization bylaws. All financial transactions and contractual arrangements were monitored by the Chief Financial Officer who prepared documentation for review by the Board as required by these policies. Any conflict of interest matter that involved staff members would be brought to the attention of the Board Chair and Vice-Chair of EcoHealth Alliance. If it involved the President, the matter would be brought to the attention of the Board Chair. A matter that involved a member of the Board would be brought to the attention of the Board or the Executive Committee in the absence of a Board meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board has established a sub-committee of the nominating and governance committee to review the compensation of the President.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>EcoHealth Alliance will make all of these documents available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>