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    <IRS990ScheduleD documentId="IRS990ScheduleD">
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      <BuildingsGrp />
      <LeaseholdImprovementsGrp />
      <EquipmentGrp />
      <OtherLandBuildingsGrp />
      <FinancialDerivativesGrp />
      <CloselyHeldEquityInterestsGrp />
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        <Desc>1ST STREET TECHNOLOGIES</Desc>
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        <MethodValuationCd>C</MethodValuationCd>
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      <FederalIncomeTaxLiabilityAmt>0</FederalIncomeTaxLiabilityAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>RECOVERABLE GRANT</Desc>
        <Amt>1500000</Amt>
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      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>19464008</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>19464008</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>19464008</TotalRevenuePerForm990Amt>
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      <ExpensesSubtotalAmt>3136557</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>3136557</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>1ST STREET FOUNDATION INC BELIEVES THAT IT HAS APPROPRIATE SUPPORT FOR ANY TAX POSITIONS TAKEN, AND AS SUCH, DOES NOT HAVE ANY UNCERTAIN TAX POSITIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="IRS990ScheduleI">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Goldman Sachs Philanthropy Fund</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO Box 15203</AddressLine1Txt>
          <CityNm>Albany</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>122125203</ZIPCd>
        </USAddress>
        <RecipientEIN>113813663</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>861111</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>BOOK</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>n/a</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>sustainability/climate</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Carnegie Endowment for International Peace</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1779 Massachusetts Avenue NW</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20036</ZIPCd>
        </USAddress>
        <RecipientEIN>130552040</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>150000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>BOOK</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>n/a</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>sustainability/climate</PurposeOfGrantTxt>
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      <Total501c3OrgCnt>2</Total501c3OrgCnt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I DESCRIPTION OF PROCEDURE FOR MONITORING USE OF FUNDS</FormAndLineReferenceDesc>
        <ExplanationTxt>The Foundation made grants to charitable organizations aligned with its mission to make climate risk accessible, easy to understand and actionable for individuals, governments, and industry. The organization requests periodic reports from grant recipients.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
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        <NameOfInterested>
          <PersonNm>ANTHRO DIGITAL LLC</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>VENDOR</RelationshipDescriptionTxt>
        <TransactionAmt>28497</TransactionAmt>
        <TransactionDesc>RENT AND UTILITIES</TransactionDesc>
        <SharingOfRevenuesInd>false</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCH L, PART IV, BUSINESS TRANSACTIONS INVOLVING INTERESTED PERSONS</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRESIDENT AND EXECUTIVE OF THE ORGANIZATION IS A RELATED PARTY TO BOTH A COMPANY AND A NON-PROFIT ORGANIZATION THAT THE ORGANIZATION HAS EXPENSE SHARING AGREEMENTS WITH. SHARED EXPENSES FOR RENT AND UTILITIES WERE $28,497 FOR THE YEAR ENDED DECEMBER 31, 2024.</ExplanationTxt>
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    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A:</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPARABLE SALARIES OF OTHER RELATED NON-PROFITS WERE COMPILED AND VOTED ON BY THE BOARD OF DIRECTORS WITHOUT THE EXECUTIVE DIRECTOR'S VOTE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11:</FormAndLineReferenceDesc>
        <ExplanationTxt>A DRAFT OF FORM 990 IS SENT TO THE BOARD OF DIRECTORS FOR REVIEW AND APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 WILL BE AVAILABLE ONLINE AT WWW.GUIDESTAR.ORG AND WWW.ag.ny.gov. ALL DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS OVERSIGHTS THE AUDIT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VIII, LINE 7D:</FormAndLineReferenceDesc>
        <ExplanationTxt>Sale of the Subsidiary and certain of the Organization's Assets On February 29, 2024, 1st Street Foundation, Inc. (the "Foundation"), the sole member of Risk Factor, LLC (the "Subsidiary"), entered into a merger agreement with First Street Technology, Inc. (the "Buyer"), resulting in the acquisition of the Subsidiary. The transaction was executed through a merger of the Subsidiary with Risk Factor Merger Sub, LLC, a wholly owned subsidiary of the Buyer, with the Subsidiary surviving as a wholly owned subsidiary of the Buyer. Immediately prior to the merger, the Foundation contributed and transferred certain assets to the Subsidiary in accordance with a Contribution Agreement.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>Risk Factor LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>215 PLYMOUTH STREET 3RD FLOOR</AddressLine1Txt>
          <CityNm>brooklyn</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11201</ZIPCd>
        </USAddress>
        <EIN>851947511</EIN>
        <PrimaryActivitiesTxt>licensing</PrimaryActivitiesTxt>
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        <DirectControllingEntityName>
          <BusinessNameLine1Txt>1st street</BusinessNameLine1Txt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCH R PART I:</FormAndLineReferenceDesc>
        <ExplanationTxt>On February 14, 2020, the Organization formed a wholly owned subsidiary, Risk Factor, LLC (the "Subsidiary"), as a Delaware limited liability company. The Subsidiary was formed to explore the licensing of intellectual property created by the Organization. On February 29, 2024, 1st Street Foundation, Inc. (the "Foundation"), the sole member of Risk Factor, LLC (the "Subsidiary"), entered into a merger agreement with First Street Technology, Inc. (the "Buyer"), resulting in the acquisition of the Subsidiary. The transaction was executed through a merger of the Subsidiary with Risk Factor Merger Sub, LLC, a wholly owned subsidiary of the Buyer, with the Subsidiary surviving as a wholly owned subsidiary of the Buyer.</ExplanationTxt>
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  </ReturnData>
</Return>