﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xsi:schemaLocation="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-07-14T11:11:33-05:00</ReturnTs>
    <TaxPeriodEndDt>2026-02-28</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>ERNST &amp; YOUNG US LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>200 CLARENDON STREET</AddressLine1Txt>
        <CityNm>BOSTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02116</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-03-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>133102940</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>The Peter M Sacerdote Foundation</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% ERNST &amp; YOUNG US LLP</InCareOfNm>
      <BusinessNameControlTxt>PETE</BusinessNameControlTxt>
      <PhoneNum>2127733000</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1040 Fifth Avenue Suite Apt 11A</AddressLine1Txt>
        <CityNm>New York</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10028</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Bonnie LEE Sacerdote</PersonNm>
      <PersonTitleTxt>TRUSTEE</PersonTitleTxt>
      <PhoneNum>2127733000</PhoneNum>
      <SignatureDt>2026-07-10</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>ROBERT NEWCOMB</PreparerPersonNm>
      <PTIN>P01293920</PTIN>
      <PhoneNum>6172662000</PhoneNum>
      <PreparationDt>2026-07-10</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990PF documentId="IRS990PF">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>29671948</FMVAssetsEOYAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AnalysisOfRevenueAndExpenses>
        <ContriRcvdRevAndExpnssAmt>0</ContriRcvdRevAndExpnssAmt>
        <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
        <InterestOnSavRevAndExpnssAmt>93032</InterestOnSavRevAndExpnssAmt>
        <InterestOnSavNetInvstIncmAmt>93032</InterestOnSavNetInvstIncmAmt>
        <DividendsRevAndExpnssAmt>498357</DividendsRevAndExpnssAmt>
        <DividendsNetInvstIncmAmt>498357</DividendsNetInvstIncmAmt>
        <TotalRevAndExpnssAmt>591389</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>591389</TotalNetInvstIncmAmt>
        <CompOfcrDirTrstRevAndExpnssAmt>0</CompOfcrDirTrstRevAndExpnssAmt>
        <AccountingFeesRevAndExpnssAmt referenceDocumentId="AccountingFeesSch">5614</AccountingFeesRevAndExpnssAmt>
        <AccountingFeesNetInvstIncmAmt>2807</AccountingFeesNetInvstIncmAmt>
        <AccountingFeesAdjNetIncmAmt>0</AccountingFeesAdjNetIncmAmt>
        <AccountingFeesChrtblPrpsAmt>2807</AccountingFeesChrtblPrpsAmt>
        <TaxesRevAndExpnssAmt referenceDocumentId="TaxesSchedule">10356</TaxesRevAndExpnssAmt>
        <OtherExpensesRevAndExpnssAmt referenceDocumentId="OtherExpensesSch">1500</OtherExpensesRevAndExpnssAmt>
        <OtherExpensesDsbrsChrtblAmt>1500</OtherExpensesDsbrsChrtblAmt>
        <TotOprExpensesRevAndExpnssAmt>17470</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>2807</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesAdjNetIncmAmt>0</TotOprExpensesAdjNetIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>4307</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>75000</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>75000</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>92470</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>2807</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesAdjNetIncmAmt>0</TotalExpensesAdjNetIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>79307</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>498919</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>588582</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <CashBOYAmt>7753</CashBOYAmt>
        <CashEOYAmt>3583</CashEOYAmt>
        <CashEOYFMVAmt>3583</CashEOYFMVAmt>
        <SavAndTempCashInvstBOYAmt>2192622</SavAndTempCashInvstBOYAmt>
        <SavAndTempCashInvstEOYAmt>2490348</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>2490348</SavAndTempCashInvstEOYFMVAmt>
        <CorporateStockBOYAmt>56916</CorporateStockBOYAmt>
        <CorporateStockEOYAmt referenceDocumentId="InvestCorpStockSch">56916</CorporateStockEOYAmt>
        <CorporateStockEOYFMVAmt>6406200</CorporateStockEOYFMVAmt>
        <CorporateBondsBOYAmt>10405783</CorporateBondsBOYAmt>
        <CorporateBondsEOYAmt referenceDocumentId="InvestCorpBondsSch">10611146</CorporateBondsEOYAmt>
        <CorporateBondsEOYFMVAmt>12644417</CorporateBondsEOYFMVAmt>
        <OtherInvestmentsBOYAmt>596342</OtherInvestmentsBOYAmt>
        <OtherInvestmentsEOYAmt referenceDocumentId="InvOtherSch2">596342</OtherInvestmentsEOYAmt>
        <OtherInvestmentsEOYFMVAmt>8127400</OtherInvestmentsEOYFMVAmt>
        <TotalAssetsBOYAmt>13259416</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>13758335</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>29671948</TotalAssetsEOYFMVAmt>
        <TotalLiabilitiesBOYAmt>0</TotalLiabilitiesBOYAmt>
        <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
        <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
        <CapitalStockBOYAmt>13259416</CapitalStockBOYAmt>
        <CapitalStockEOYAmt>13758335</CapitalStockEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>13259416</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>13758335</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>13259416</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>13758335</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>13259416</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>498919</ExcessRevenueOverExpensesAmt>
        <SubtotalAmt>13758335</SubtotalAmt>
        <TotNetAstOrFundBalancesEOYAmt>13758335</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail />
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>8181</InvestmentIncomeExciseTaxAmt>
        <SubtotalAmt>8181</SubtotalAmt>
        <TaxBasedOnInvestmentIncomeAmt>8181</TaxBasedOnInvestmentIncomeAmt>
        <EstimatedPlusOvpmtIncmTxAmt>7000</EstimatedPlusOvpmtIncmTxAmt>
        <ExemptFrgnOrgTaxWthldAtSrceAmt>0</ExemptFrgnOrgTaxWthldAtSrceAmt>
        <TotalPaymentsAndCreditsAmt>7000</TotalPaymentsAndCreditsAmt>
        <Form2220AttachedInd referenceDocumentId="IRS2220">X</Form2220AttachedInd>
        <EsPenaltyAmt>106</EsPenaltyAmt>
        <TaxDueAmt>1287</TaxDueAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd referenceDocumentId="BinaryAttach">false</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd referenceDocumentId="BinaryAttach">false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd referenceDocumentId="BinaryAttach">false</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>NY</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd>true</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>false</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>false</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>false</OwnControlledEntityInd>
        <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
        <PersonsWithBooksName>
          <BusinessNameLine1Txt>ERNST &amp; YOUNG US LLP</BusinessNameLine1Txt>
        </PersonsWithBooksName>
        <PhoneNum>2127733000</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>ONE MANHATTAN WEST</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>100018604</ZIPCd>
        </LocationOfBooksUSAddress>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>false</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>false</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>false</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>false</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <UncorrectedPriorActsInd>false</UncorrectedPriorActsInd>
        <UndistributedIncomePYInd>false</UndistributedIncomePYInd>
        <BusinessHoldingsInd>false</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>false</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>false</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>false</InfluenceLegislationInd>
        <InfluenceElectionInd>false</InfluenceElectionInd>
        <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
        <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
        <NoncharitablePurposeInd>false</NoncharitablePurposeInd>
        <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
        <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
        <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
        <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      </StatementsRegardingActy4720Grp>
      <OfficerDirTrstKeyEmplInfoGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>BONNIE LEE SACERDOTE</PersonNm>
          <USAddress>
            <AddressLine1Txt>1040 Fifth Avenue</AddressLine1Txt>
            <CityNm>New York</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10028</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>ALEXANDER L SACERDOTE</PersonNm>
          <USAddress>
            <AddressLine1Txt>1040 Fifth Avenue</AddressLine1Txt>
            <CityNm>New York</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10028</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>LAURENCE A SACERDOTE</PersonNm>
          <USAddress>
            <AddressLine1Txt>1040 Fifth Avenue</AddressLine1Txt>
            <CityNm>New York</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10028</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>ALISA ANN SACERDOTE-BROCKELMAN</PersonNm>
          <USAddress>
            <AddressLine1Txt>1040 Fifth Avenue</AddressLine1Txt>
            <CityNm>New York</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10028</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SummaryOfDirectChrtblActyGrp>
        <Description1Txt>NONE</Description1Txt>
      </SummaryOfDirectChrtblActyGrp>
      <SumOfProgramRelatedInvstGrp>
        <Description1Txt>NONE</Description1Txt>
        <Description2Txt>NONE</Description2Txt>
      </SumOfProgramRelatedInvstGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>25793653</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>2331815</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>0</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>28125468</TotalFMVOfUnusedAssetsAmt>
        <AcquisitionIndebtednessAmt>0</AcquisitionIndebtednessAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>28125468</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>421882</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>27703586</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>1385179</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>1385179</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>8181</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>8181</TotalTaxAmt>
        <DistributableBeforeAdjAmt>1376998</DistributableBeforeAdjAmt>
        <DistributableBeforeDedAmt>1376998</DistributableBeforeDedAmt>
        <DistributableAsAdjustedAmt>1376998</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt>79307</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>0</ProgramRelatedInvstTotalAmt>
        <CharitableAssetsAcquisPaidAmt>0</CharitableAssetsAcquisPaidAmt>
        <SetAsideSuitabilityTestAmt>0</SetAsideSuitabilityTestAmt>
        <SetAsideCashDistriTestAmt>0</SetAsideCashDistriTestAmt>
        <QualifyingDistributionsAmt>79307</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>1376998</DistributableAsAdjustedAmt>
        <UndistributedIncomePYAmt>69000</UndistributedIncomePYAmt>
        <PriorYear1Yr>2023</PriorYear1Yr>
        <PriorYear2Yr>2022</PriorYear2Yr>
        <PriorYear3Yr>2021</PriorYear3Yr>
        <TotalForPriorYearsAmt>0</TotalForPriorYearsAmt>
        <QualifyingDistributionsAmt>79307</QualifyingDistributionsAmt>
        <AppliedToYear1Amt>69000</AppliedToYear1Amt>
        <AppliedToCurrentYearAmt>10307</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>0</RemainingDistriFromCorpusAmt>
        <TotalCorpusAmt>0</TotalCorpusAmt>
        <PriorYearUndistributedIncmAmt>0</PriorYearUndistributedIncmAmt>
        <Taxable1Amt>0</Taxable1Amt>
        <UndistributedIncomeCYAmt>1366691</UndistributedIncomeCYAmt>
        <ExcessDistriCyovToNextYrAmt>0</ExcessDistriCyovToNextYrAmt>
        <ExcessFromCurrentYearAmt>0</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <PrivateOperatingFoundationsGrp></PrivateOperatingFoundationsGrp>
      <SupplementaryInformationGrp>
        <ContributingManagerNm>NONE</ContributingManagerNm>
        <ShareholderManagerNm>NONE</ShareholderManagerNm>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Greenwich Country Day School Inc</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>PO BOX 623</AddressLine1Txt>
            <CityNm>Greenwich</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>60623</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>PC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>General Purpose</GrantOrContributionPurposeTxt>
          <Amt>25000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>The Greenwich Land Trust Inc</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>370 ROUND HILL RD</AddressLine1Txt>
            <CityNm>Greenwich</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>068313300</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>PC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>General Purpose</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Taft School Corporation</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>110 WOODBURY RD</AddressLine1Txt>
            <CityNm>Watertown</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>067952130</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>PC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>General Purpose</GrantOrContributionPurposeTxt>
          <Amt>20000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Boys &amp; Girls Clubs of America</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1275 Peachtree Street</AddressLine1Txt>
            <CityNm>Atlanta</CityNm>
            <StateAbbreviationCd>GA</StateAbbreviationCd>
            <ZIPCd>30309</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>PC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>General Purpose</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Greenwich Historical Society</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>47 Strickland Road</AddressLine1Txt>
            <CityNm>Cos Cob</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06807</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>PC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>General Purpose</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>75000</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <FeesContractsFromGovtAgGrp />
        <MembershipDuesAndAssmntGrp />
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>93032</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>498357</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <NetRntlIncmReDebtFincdPropGrp />
        <NetRntlIncmReNotDebtFincdProp />
        <NetRentalIncomePersonalPropGrp />
        <OtherInvestmentIncomeGrp />
        <GainSalesAstOthThanInvntryGrp />
        <NetIncomeLossFromSpecialEvtGrp />
        <GrossProfitLossSlsOfInvntryGrp />
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>591389</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>591389</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <AccountingFeesSchedule documentId="AccountingFeesSch">
      <AccountingFeesDetail>
        <CategoryTxt>ACCOUNTING FEES</CategoryTxt>
        <Amt>5614</Amt>
        <NetInvestmentIncomeAmt>2807</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>2807</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <AllOthProgRltdInvestmentsSch documentId="AllOthProgInvSch">
      <AllOtherProgramRelatedInvstGrp>
        <Desc>NONE</Desc>
      </AllOtherProgramRelatedInvstGrp>
    </AllOthProgRltdInvestmentsSch>
    <DepreciationSchedule documentId="DepreciationSch" />
    <InvestmentsCorpBondsSchedule documentId="InvestCorpBondsSch">
      <InvestmentsCorporateBondsGrp>
        <BondNm>WELLS FARGO &amp; CO</BondNm>
        <EOYBookValueAmt>932300</EOYBookValueAmt>
        <EOYFMVAmt>1847985</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
      <InvestmentsCorporateBondsGrp>
        <BondNm>GS ST CONSERVATIVE CLS P</BondNm>
        <EOYBookValueAmt>4676759</EOYBookValueAmt>
        <EOYFMVAmt>4740432</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
      <InvestmentsCorporateBondsGrp>
        <BondNm>BERKSHIRE HATHAWAY INC</BondNm>
        <EOYBookValueAmt>5002087</EOYBookValueAmt>
        <EOYFMVAmt>6056000</EOYFMVAmt>
      </InvestmentsCorporateBondsGrp>
    </InvestmentsCorpBondsSchedule>
    <InvestmentsCorpStockSchedule documentId="InvestCorpStockSch">
      <InvestmentsCorporateStockGrp>
        <StockNm>QUALCOMM INC CMN</StockNm>
        <EOYBookValueAmt>56916</EOYBookValueAmt>
        <EOYFMVAmt>6406200</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <InvestmentsOtherSchedule2 documentId="InvOtherSch2">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>VANECK SEMICONDUCTOR ETF</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>596342</BookValueAmt>
        <EOYFMVAmt>8127400</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <OtherExpensesSchedule documentId="OtherExpensesSch">
      <OtherExpensesScheduleGrp>
        <Desc>STATE FILING FEES</Desc>
        <RevenueAndExpensesPerBooksAmt>1500</RevenueAndExpensesPerBooksAmt>
        <DisbursementsCharitablePrpsAmt>1500</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <TaxesSchedule documentId="TaxesSchedule">
      <TaxesDetail>
        <CategoryTxt>EXCISE TAXES PAID</CategoryTxt>
        <Amt>10356</Amt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>