﻿<?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="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-11-17T17:23:46-06:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>PwC US Tax LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>655 NEW YORK AVE NW SUITE 1100</AddressLine1Txt>
        <CityNm>WASHINGTON</CityNm>
        <StateAbbreviationCd>DC</StateAbbreviationCd>
        <ZIPCd>20001</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>956035908</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THE NORTON SIMON FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% TODD YUBA</InCareOfNm>
      <BusinessNameControlTxt>NORT</BusinessNameControlTxt>
      <PhoneNum>6264327740</PhoneNum>
      <USAddress>
        <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
        <CityNm>PASADENA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>91101</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>TODD YUBA</PersonNm>
      <PersonTitleTxt>CFO</PersonTitleTxt>
      <PhoneNum>6264327740</PhoneNum>
      <SignatureDt>2025-11-17</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>TRAVIS L PATTON</PreparerPersonNm>
      <PTIN>P00369623</PTIN>
      <PhoneNum>2024141000</PhoneNum>
      <PreparationDt>2025-11-17</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="15">
    <IRS990PF documentId="IRS990PF">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>1807238751</FMVAssetsEOYAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AnalysisOfRevenueAndExpenses>
        <ContriRcvdRevAndExpnssAmt>0</ContriRcvdRevAndExpnssAmt>
        <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
        <InterestOnSavRevAndExpnssAmt>2294</InterestOnSavRevAndExpnssAmt>
        <InterestOnSavNetInvstIncmAmt>2294</InterestOnSavNetInvstIncmAmt>
        <DividendsRevAndExpnssAmt>1722272</DividendsRevAndExpnssAmt>
        <DividendsNetInvstIncmAmt>1722272</DividendsNetInvstIncmAmt>
        <NetGainSaleAstRevAndExpnssAmt>4690487</NetGainSaleAstRevAndExpnssAmt>
        <GrossSalesPriceAmt>9679170</GrossSalesPriceAmt>
        <CapGainNetIncmNetInvstIncmAmt>6122163</CapGainNetIncmNetInvstIncmAmt>
        <OtherIncomeRevAndExpnssAmt referenceDocumentId="OtherIncomeSch2">0</OtherIncomeRevAndExpnssAmt>
        <OtherIncomeNetInvstIncmAmt>640638</OtherIncomeNetInvstIncmAmt>
        <TotalRevAndExpnssAmt>6415053</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>8487367</TotalNetInvstIncmAmt>
        <CompOfcrDirTrstRevAndExpnssAmt>181630</CompOfcrDirTrstRevAndExpnssAmt>
        <CompOfcrDirTrstNetInvstIncmAmt>43591</CompOfcrDirTrstNetInvstIncmAmt>
        <CompOfcrDirTrstDsbrsChrtblAmt>138039</CompOfcrDirTrstDsbrsChrtblAmt>
        <PensionEmplBnftRevAndExpnssAmt>18563</PensionEmplBnftRevAndExpnssAmt>
        <PensionEmplBnftNetInvstIncmAmt>4455</PensionEmplBnftNetInvstIncmAmt>
        <PensionEmplBnftDsbrsChrtblAmt>14108</PensionEmplBnftDsbrsChrtblAmt>
        <LegalFeesRevAndExpnssAmt referenceDocumentId="LegalFeesSch">32557</LegalFeesRevAndExpnssAmt>
        <LegalFeesNetInvstIncmAmt>0</LegalFeesNetInvstIncmAmt>
        <LegalFeesAdjNetIncmAmt>0</LegalFeesAdjNetIncmAmt>
        <LegalFeesDsbrsChrtblAmt>32971</LegalFeesDsbrsChrtblAmt>
        <AccountingFeesRevAndExpnssAmt referenceDocumentId="AccountingFeesSch">27150</AccountingFeesRevAndExpnssAmt>
        <AccountingFeesNetInvstIncmAmt>10860</AccountingFeesNetInvstIncmAmt>
        <AccountingFeesAdjNetIncmAmt>0</AccountingFeesAdjNetIncmAmt>
        <AccountingFeesChrtblPrpsAmt>12690</AccountingFeesChrtblPrpsAmt>
        <OtherProfFeesRevAndExpnssAmt referenceDocumentId="OthProfFeesSch">177933</OtherProfFeesRevAndExpnssAmt>
        <OtherProfFeesNetInvstIncmAmt>164496</OtherProfFeesNetInvstIncmAmt>
        <OtherProfFeesAdjNetIncmAmt>0</OtherProfFeesAdjNetIncmAmt>
        <OtherProfFeesDsbrsChrtblAmt>13437</OtherProfFeesDsbrsChrtblAmt>
        <TaxesRevAndExpnssAmt referenceDocumentId="TaxesSchedule">88466</TaxesRevAndExpnssAmt>
        <DeprecAndDpltnRevAndExpnssAmt referenceDocumentId="DepreciationSch">150138</DeprecAndDpltnRevAndExpnssAmt>
        <DeprecAndDpltnNetInvstIncmAmt>857</DeprecAndDpltnNetInvstIncmAmt>
        <OccupancyRevAndExpnssAmt>54153</OccupancyRevAndExpnssAmt>
        <OccupancyNetInvstIncmAmt>10831</OccupancyNetInvstIncmAmt>
        <OccupancyDsbrsChrtblAmt>43724</OccupancyDsbrsChrtblAmt>
        <TravConfMeetingRevAndExpnssAmt>36</TravConfMeetingRevAndExpnssAmt>
        <TravConfMeetingDsbrsChrtblAmt>36</TravConfMeetingDsbrsChrtblAmt>
        <OtherExpensesRevAndExpnssAmt referenceDocumentId="OtherExpensesSch">863010</OtherExpensesRevAndExpnssAmt>
        <OtherExpensesNetInvstIncmAmt>111059</OtherExpensesNetInvstIncmAmt>
        <OtherExpensesAdjNetIncmAmt>0</OtherExpensesAdjNetIncmAmt>
        <OtherExpensesDsbrsChrtblAmt>749789</OtherExpensesDsbrsChrtblAmt>
        <TotOprExpensesRevAndExpnssAmt>1593636</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>346149</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesAdjNetIncmAmt>0</TotOprExpensesAdjNetIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>1004794</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>6000000</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>6000000</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>7593636</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>346149</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesAdjNetIncmAmt>0</TotalExpensesAdjNetIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>7004794</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>-1178583</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>8141218</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <SavAndTempCashInvstBOYAmt>262433</SavAndTempCashInvstBOYAmt>
        <SavAndTempCashInvstEOYAmt>330504</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>330504</SavAndTempCashInvstEOYFMVAmt>
        <AcctRcvblAmt>400468</AcctRcvblAmt>
        <AcctRcvblBOYAmt>451334</AcctRcvblBOYAmt>
        <AcctRcvblEOYAmt>400468</AcctRcvblEOYAmt>
        <AcctRcvblEOYFMVAmt>400468</AcctRcvblEOYFMVAmt>
        <PrepaidExpensesBOYAmt>388829</PrepaidExpensesBOYAmt>
        <PrepaidExpensesEOYAmt>397301</PrepaidExpensesEOYAmt>
        <PrepaidExpensesEOYFMVAmt>397301</PrepaidExpensesEOYFMVAmt>
        <CorporateStockBOYAmt>78608185</CorporateStockBOYAmt>
        <CorporateStockEOYAmt referenceDocumentId="InvestCorpStockSch">83991704</CorporateStockEOYAmt>
        <CorporateStockEOYFMVAmt>83991704</CorporateStockEOYFMVAmt>
        <OtherInvestmentsBOYAmt>52169914</OtherInvestmentsBOYAmt>
        <OtherInvestmentsEOYAmt referenceDocumentId="InvOtherSch2">53416646</OtherInvestmentsEOYAmt>
        <OtherInvestmentsEOYFMVAmt>53416646</OtherInvestmentsEOYFMVAmt>
        <LandBldgEquipCostOrOtherBssAmt>2084101</LandBldgEquipCostOrOtherBssAmt>
        <LandBldgEquipAccumDeprecAmt>1622923</LandBldgEquipAccumDeprecAmt>
        <LandBOYAmt>497253</LandBOYAmt>
        <LandEOYAmt>461178</LandEOYAmt>
        <LandEOYFMVAmt>461178</LandEOYFMVAmt>
        <OtherAssetsBOYAmt referenceDocumentId="OtherAssetsSch">56059100</OtherAssetsBOYAmt>
        <OtherAssetsEOYAmt referenceDocumentId="OtherAssetsSch">56214178</OtherAssetsEOYAmt>
        <OtherAssetsEOYFMVAmt referenceDocumentId="OtherAssetsSch">1668240950</OtherAssetsEOYFMVAmt>
        <TotalAssetsBOYAmt>188437048</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>195211979</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>1807238751</TotalAssetsEOYFMVAmt>
        <AccountsPayableBOYAmt>45530</AccountsPayableBOYAmt>
        <AccountsPayableEOYAmt>81766</AccountsPayableEOYAmt>
        <GrantsPayableBOYAmt>1500000</GrantsPayableBOYAmt>
        <GrantsPayableEOYAmt>0</GrantsPayableEOYAmt>
        <OtherLiabilitiesBOYAmt referenceDocumentId="OtherLiabSch">728997</OtherLiabilitiesBOYAmt>
        <OtherLiabilitiesEOYAmt referenceDocumentId="OtherLiabSch">1000458</OtherLiabilitiesEOYAmt>
        <TotalLiabilitiesBOYAmt>2274527</TotalLiabilitiesBOYAmt>
        <TotalLiabilitiesEOYAmt>1082224</TotalLiabilitiesEOYAmt>
        <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
        <NoDonorRstrNetAssestsBOYAmt>186162521</NoDonorRstrNetAssestsBOYAmt>
        <NoDonorRstrNetAssestsEOYAmt>194129755</NoDonorRstrNetAssestsEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>186162521</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>194129755</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>188437048</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>195211979</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>186162521</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>-1178583</ExcessRevenueOverExpensesAmt>
        <OtherIncreasesAmt referenceDocumentId="OtherIncreasesSch">9274735</OtherIncreasesAmt>
        <SubtotalAmt>194258673</SubtotalAmt>
        <OtherDecreasesAmt referenceDocumentId="OtherDecreasesSch">128918</OtherDecreasesAmt>
        <TotNetAstOrFundBalancesEOYAmt>194129755</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>92SHS BLACKROCK MSCI ACWI MV IN FN B ST</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>1943</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>1893</CostOrOtherBasisAmt>
          <GainOrLossAmt>50</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>50</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>656SHS BLACKROCK MSCI ACWI MV IN FN B LT</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>13350</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>8639</CostOrOtherBasisAmt>
          <GainOrLossAmt>4711</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>4711</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>COHEN &amp; STEERS REAL ASSETS FUND I</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>29271</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>29271</CostOrOtherBasisAmt>
          <GainOrLossAmt>0</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>0</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>GROSVENOR INSTITUTIONAL PARTNERS</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2017-08-28</AcquiredDt>
          <GrossSalesPriceAmt>850000</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>571320</CostOrOtherBasisAmt>
          <GainOrLossAmt>278680</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>278680</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>453SHS WEATHERLOW OFFSHORE FUND I LTD CLASS IA</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <AcquiredDt>2011-02-01</AcquiredDt>
          <GrossSalesPriceAmt>925000</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>467262</CostOrOtherBasisAmt>
          <GainOrLossAmt>457738</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>457738</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>CAPITAL GAINS DISTRIBUTION</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>1509607</GrossSalesPriceAmt>
          <GainOrLossAmt>1509607</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>1509607</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>K-1 BLACKROCK MSCI ACWI MV IND FND B LT</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>2936602</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>0</CostOrOtherBasisAmt>
          <GainOrLossAmt>2936602</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>2936602</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>K-1 BLACKROCK MSCI ACWI MV IND FND B ST</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>93601</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>0</CostOrOtherBasisAmt>
          <GainOrLossAmt>93601</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>93601</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>K-1 JPMORGAN US LRG CAP 130/30 FUND LT</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>668889</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>0</CostOrOtherBasisAmt>
          <GainOrLossAmt>668889</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>668889</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>K-1 JPMORGAN US LRG CAP 130/30 FUND ST</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>0</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>273338</CostOrOtherBasisAmt>
          <GainOrLossAmt>-273338</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>-273338</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>PUBLICLY TRADED SECURITIES LT GAIN</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>1261224</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>930435</CostOrOtherBasisAmt>
          <GainOrLossAmt>330789</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>330789</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>PUBLICLY TRADED SECURITIES ST GAIN</PropertyDesc>
          <HowAcquiredCd>P</HowAcquiredCd>
          <GrossSalesPriceAmt>2088776</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>1973942</CostOrOtherBasisAmt>
          <GainOrLossAmt>114834</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>114834</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapitalGainNetIncomeAmt>6122163</CapitalGainNetIncomeAmt>
        <NetShortTermCapitalGainLossAmt>0</NetShortTermCapitalGainLossAmt>
      </CapGainsLossTxInvstIncmDetail>
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>113163</InvestmentIncomeExciseTaxAmt>
        <SubtotalAmt>113163</SubtotalAmt>
        <TaxBasedOnInvestmentIncomeAmt>113163</TaxBasedOnInvestmentIncomeAmt>
        <EstimatedPlusOvpmtIncmTxAmt>96602</EstimatedPlusOvpmtIncmTxAmt>
        <ExemptFrgnOrgTaxWthldAtSrceAmt>0</ExemptFrgnOrgTaxWthldAtSrceAmt>
        <ExtsnRequestIncomeTaxPaidAmt>26000</ExtsnRequestIncomeTaxPaidAmt>
        <TotalPaymentsAndCreditsAmt>122602</TotalPaymentsAndCreditsAmt>
        <Form2220AttachedInd referenceDocumentId="IRS2220">X</Form2220AttachedInd>
        <EsPenaltyAmt>1255</EsPenaltyAmt>
        <OverpaymentAmt>8184</OverpaymentAmt>
        <AppliedToESTaxAmt>8184</AppliedToESTaxAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd referenceDocumentId="BinaryAttach">false</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <Section4955OrganizationTaxAmt>0</Section4955OrganizationTaxAmt>
        <Section4955ManagersTaxAmt>0</Section4955ManagersTaxAmt>
        <TaxReimbursedAmt>0</TaxReimbursedAmt>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd referenceDocumentId="BinaryAttach">false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd referenceDocumentId="BinaryAttach">false</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>CA</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd>true</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>false</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>false</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>true</OwnControlledEntityInd>
        <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>WWW.NORTONSIMONFOUNDATION.ORG</WebsiteAddressTxt>
        <PersonsWithBooksName>
          <BusinessNameLine1Txt>TODD YUBA</BusinessNameLine1Txt>
        </PersonsWithBooksName>
        <PhoneNum>6268446910</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>385 E COLORADO BLVD STE 240</AddressLine1Txt>
          <CityNm>PASADENA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91101</ZIPCd>
        </LocationOfBooksUSAddress>
        <ForeignAccountsQuestionInd>false</ForeignAccountsQuestionInd>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>false</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>false</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>true</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>false</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>false</PaymentToGovernmentOfficialInd>
        <ActsFailToQlfyAsExceptionsInd>false</ActsFailToQlfyAsExceptionsInd>
        <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 referenceDocumentId="CompensationExpl">WALTER W TIMOSHUK</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>PRESIDENT &amp; TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>6.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>94625</CompensationAmt>
          <EmployeeBenefitProgramAmt>6849</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">RONALD H DYKHUIZEN</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>CFO &amp; VP &amp; TREASURER</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>6.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>46955</CompensationAmt>
          <EmployeeBenefitProgramAmt>6851</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">STEPHANIE VILLASENOR</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>SECRETARY &amp; VP &amp; TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>7.5</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>40050</CompensationAmt>
          <EmployeeBenefitProgramAmt>4863</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">SARA CAMPBELL ABDO</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>ASST. SECRETARY &amp; TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">LUIS LI</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">THOMAS L PFISTER</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE (THRU 12/31/2024)</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">DR MICHAEL E PHELPS</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>CHAIR &amp; TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">NANCY SHELMON</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm referenceDocumentId="CompensationExpl">NINA SHEPHERD</PersonNm>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <TitleTxt>TRUSTEE</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.0</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OtherEmployeePaidOver50kCnt>0</OtherEmployeePaidOver50kCnt>
        <CompensationOfHghstPdCntrctGrp>
          <BusinessName>
            <BusinessNameLine1Txt>NORTON SIMON ART FOUNDATION</BusinessNameLine1Txt>
          </BusinessName>
          <USAddress>
            <AddressLine1Txt>385 E COLORADO BLVD SUITE 240</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91101</ZIPCd>
          </USAddress>
          <ServiceTypeTxt>MANAGEMENT SERVICES</ServiceTypeTxt>
          <CompensationAmt>440400</CompensationAmt>
        </CompensationOfHghstPdCntrctGrp>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SummaryOfDirectChrtblActyGrp>
        <Description1Txt>THE FOUNDATION MAINTAINS AN ART COLLECTION FOR CHARITABLE PURPOSES, WHICH IT LOANS TO PUBLIC ART MUSEUMS FOR EXHIBITION TO THE PUBLIC.</Description1Txt>
        <Expenses1Amt>1004794</Expenses1Amt>
        <Description2Txt>ACQUISITION OF EQUIPMENT AND MISCELLANEOUS CAPITALIZED EXPENDITURES RELATED TO THE MAINTENANCE OF ARTWORK.</Description2Txt>
        <Expenses2Amt>106324</Expenses2Amt>
      </SummaryOfDirectChrtblActyGrp>
      <SumOfProgramRelatedInvstGrp>
        <Description1Txt>N/A</Description1Txt>
      </SumOfProgramRelatedInvstGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>136749927</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>843730</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>5522</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>137599179</TotalFMVOfUnusedAssetsAmt>
        <AcquisitionIndebtednessAmt>0</AcquisitionIndebtednessAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>137599179</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>2063988</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>135535191</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>6776760</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>6776760</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>113163</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>113163</TotalTaxAmt>
        <DistributableBeforeAdjAmt>6663597</DistributableBeforeAdjAmt>
        <DistributableBeforeDedAmt>6663597</DistributableBeforeDedAmt>
        <DistributableAsAdjustedAmt>6663597</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt>7004794</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>0</ProgramRelatedInvstTotalAmt>
        <CharitableAssetsAcquisPaidAmt>106324</CharitableAssetsAcquisPaidAmt>
        <SetAsideSuitabilityTestAmt>0</SetAsideSuitabilityTestAmt>
        <SetAsideCashDistriTestAmt>0</SetAsideCashDistriTestAmt>
        <QualifyingDistributionsAmt>7111118</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>6663597</DistributableAsAdjustedAmt>
        <UndistributedIncomePYAmt>3012420</UndistributedIncomePYAmt>
        <PriorYear1Yr>2022</PriorYear1Yr>
        <PriorYear2Yr>2021</PriorYear2Yr>
        <PriorYear3Yr>2020</PriorYear3Yr>
        <TotalForPriorYearsAmt>0</TotalForPriorYearsAmt>
        <QualifyingDistributionsAmt>7111118</QualifyingDistributionsAmt>
        <AppliedToYear1Amt>3012420</AppliedToYear1Amt>
        <TreatedAsDistriFromCorpusAmt>0</TreatedAsDistriFromCorpusAmt>
        <AppliedToCurrentYearAmt>4098698</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>0</RemainingDistriFromCorpusAmt>
        <TotalCorpusAmt>0</TotalCorpusAmt>
        <PriorYearUndistributedIncmAmt>0</PriorYearUndistributedIncmAmt>
        <PriorYearDeficiencyOrTaxAmt>0</PriorYearDeficiencyOrTaxAmt>
        <Taxable1Amt>0</Taxable1Amt>
        <UndistributedIncomeCYAmt>2564899</UndistributedIncomeCYAmt>
        <CorpusDistri170b1EOr4942g3Amt>0</CorpusDistri170b1EOr4942g3Amt>
        <ExcessDistriCyovToNextYrAmt>0</ExcessDistriCyovToNextYrAmt>
        <ExcessFromCurrentYearAmt>0</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <PrivateOperatingFoundationsGrp></PrivateOperatingFoundationsGrp>
      <SupplementaryInformationGrp>
        <ContributingManagerNm>NONE</ContributingManagerNm>
        <ShareholderManagerNm>NONE</ShareholderManagerNm>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>NORTON SIMON MUSEUM OF ART AT PASADENA</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>411 W COLORADO BLVD</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91105</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>UNRESTRICTED SUPPORT OF THE MUSEUM'S OPERATIONS</GrantOrContributionPurposeTxt>
          <Amt>6000000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>6000000</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <FeesContractsFromGovtAgGrp />
        <MembershipDuesAndAssmntGrp />
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>2294</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>1722272</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <NetRntlIncmReDebtFincdPropGrp />
        <NetRntlIncmReNotDebtFincdProp />
        <NetRentalIncomePersonalPropGrp />
        <OtherInvestmentIncomeGrp />
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>4690487</ExclusionAmt>
        </GainSalesAstOthThanInvntryGrp>
        <NetIncomeLossFromSpecialEvtGrp />
        <GrossProfitLossSlsOfInvntryGrp />
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>6415053</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>6415053</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>GREEN HASSON &amp; JANKS LLP</CategoryTxt>
        <Amt>15150</Amt>
        <NetInvestmentIncomeAmt>6060</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>7081</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
      <AccountingFeesDetail>
        <CategoryTxt>PWC US TAX LLP</CategoryTxt>
        <Amt>12000</Amt>
        <NetInvestmentIncomeAmt>4800</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>5609</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <CompensationExplanation documentId="CompensationExpl">
      <CompensationExplanationGrp>
        <PersonNm>WALTER W TIMOSHUK</PersonNm>
        <ShortExplanationTxt>THE NORTON SIMON FOUNDATION DOES NOT HAVE A PAYROLL. THE NORTON SIMON FOUNDATION RECEIVED SUPPORT SERVICES FROM THE NORTON SIMON ART FOUNDATION (A 501(C)(3) ORGANIZATION; FEIN 95-6038921) DURING CALENDAR YEAR 2024 PURSUANT TO AN EMPLOYEE LEASE ARRANGEMENT. THE AMOUNTS REPORTED IN PART VII, LINE 1 ARE THE PORTIONS OF THE MANAGEMENT FEE THAT THE NORTON SIMON FOUNDATION PAID THE NORTON SIMON ART FOUNDATION RELATED TO COMPENSATION AND BENEFITS FOR SERVICES PROVIDED BY MR. TIMOSHUK UNDER THIS LEASE ARRANGEMENT.</ShortExplanationTxt>
      </CompensationExplanationGrp>
      <CompensationExplanationGrp>
        <PersonNm>RONALD H DYKHUIZEN</PersonNm>
        <ShortExplanationTxt>THE NORTON SIMON FOUNDATION DOES NOT HAVE A PAYROLL. THE NORTON SIMON FOUNDATION RECEIVED SUPPORT SERVICES FROM THE NORTON SIMON ART FOUNDATION (A 501(C)(3) ORGANIZATION; FEIN 95-6038921) DURING CALENDAR YEAR 2024 PURSUANT TO AN EMPLOYEE LEASE ARRANGEMENT. THE AMOUNTS REPORTED IN PART VII, LINE 1 ARE THE PORTIONS OF THE MANAGEMENT FEE THAT THE NORTON SIMON FOUNDATION PAID THE NORTON SIMON ART FOUNDATION RELATED TO COMPENSATION AND BENEFITS FOR SERVICES PROVIDED BY MR. DYKHUIZEN UNDER THIS LEASE ARRANGEMENT.</ShortExplanationTxt>
      </CompensationExplanationGrp>
      <CompensationExplanationGrp>
        <PersonNm>STEPHANIE VILLASENOR</PersonNm>
        <ShortExplanationTxt>THE NORTON SIMON FOUNDATION DOES NOT HAVE A PAYROLL. THE NORTON SIMON FOUNDATION RECEIVED SUPPORT SERVICES FROM THE NORTON SIMON ART FOUNDATION (A 501(C)(3) ORGANIZATION; FEIN 95-6038921) DURING CALENDAR YEAR 2024 PURSUANT TO AN EMPLOYEE LEASE ARRANGEMENT. THE AMOUNTS REPORTED IN PART VII, LINE 1 ARE THE PORTIONS OF THE MANAGEMENT FEE THAT THE NORTON SIMON FOUNDATION PAID THE NORTON SIMON ART FOUNDATION RELATED TO COMPENSATION AND BENEFITS FOR SERVICES PROVIDED BY MS. VILLASENOR UNDER THIS LEASE ARRANGEMENT.</ShortExplanationTxt>
      </CompensationExplanationGrp>
    </CompensationExplanation>
    <DepreciationSchedule documentId="DepreciationSch" />
    <InvestmentsCorpStockSchedule documentId="InvestCorpStockSch">
      <InvestmentsCorporateStockGrp>
        <StockNm>BLACKROCK ACWI MV INDEX FUND</StockNm>
        <EOYBookValueAmt>27277493</EOYBookValueAmt>
        <EOYFMVAmt>27277493</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>JPMORGAN US LG CAP 130/30 FUND</StockNm>
        <EOYBookValueAmt>15710391</EOYBookValueAmt>
        <EOYFMVAmt>15710391</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>EUROPACIFIC GROWTH FUND</StockNm>
        <EOYBookValueAmt>24670136</EOYBookValueAmt>
        <EOYFMVAmt>24670136</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>VANGUARD INSTIT INDEX FUND</StockNm>
        <EOYBookValueAmt>16333684</EOYBookValueAmt>
        <EOYFMVAmt>16333684</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <InvestmentsOtherSchedule2 documentId="InvOtherSch2">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>DODGE &amp; COX INCOME FUND</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>16032586</BookValueAmt>
        <EOYFMVAmt>16032586</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>VANGUARD LT TREAS INDEX FUND</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>1348481</BookValueAmt>
        <EOYFMVAmt>1348481</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>NORTHERN TRST US GOV PORTFOLIO</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>95118</BookValueAmt>
        <EOYFMVAmt>95118</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>GROSVENOR INSTIT PARTNERS LP</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>8437094</BookValueAmt>
        <EOYFMVAmt>8437094</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>THE WEATHERLOW OFFSHORE FUND I</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>14897777</BookValueAmt>
        <EOYFMVAmt>14897777</EOYFMVAmt>
      </InvestmentsOtherGrp>
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>COHEN &amp; STEERS RA FUND I</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>FMV</ListedAtCostOrFMVCd>
        <BookValueAmt>12605590</BookValueAmt>
        <EOYFMVAmt>12605590</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <LegalFeesSchedule documentId="LegalFeesSch">
      <LegalFeesGrp>
        <CategoryTxt>LEGAL SERVICES</CategoryTxt>
        <LegalFeesAmt>32557</LegalFeesAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>32971</DisbursementsCharitablePrpsAmt>
      </LegalFeesGrp>
    </LegalFeesSchedule>
    <OtherAssetsSchedule documentId="OtherAssetsSch">
      <OtherAssetsScheduleGrp>
        <Desc>COLLECTION OF ART</Desc>
        <BOYBookValueAmt>55813744</BOYBookValueAmt>
        <EOYBookValueAmt>55813744</EOYBookValueAmt>
        <EOYFMVAmt>1666744050</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>FRAMES</Desc>
        <BOYBookValueAmt>179929</BOYBookValueAmt>
        <EOYBookValueAmt>179929</EOYBookValueAmt>
        <EOYFMVAmt>1276395</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
      <OtherAssetsScheduleGrp>
        <Desc>RIGHT-OF-USE-ASSET</Desc>
        <BOYBookValueAmt>65427</BOYBookValueAmt>
        <EOYBookValueAmt>220505</EOYBookValueAmt>
        <EOYFMVAmt>220505</EOYFMVAmt>
      </OtherAssetsScheduleGrp>
    </OtherAssetsSchedule>
    <OtherDecreasesSchedule documentId="OtherDecreasesSch">
      <OtherDecreasesDetail>
        <Desc>CHANGE IN PROV FOR DEFERD FED EXCISE TAX</Desc>
        <Amt>128918</Amt>
      </OtherDecreasesDetail>
    </OtherDecreasesSchedule>
    <OtherExpensesSchedule documentId="OtherExpensesSch">
      <OtherExpensesScheduleGrp>
        <Desc>ART INSURANCE</Desc>
        <RevenueAndExpensesPerBooksAmt>454989</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>454989</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>BANK CHARGES</Desc>
        <RevenueAndExpensesPerBooksAmt>5973</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>5973</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>MANAGEMENT FEE</Desc>
        <RevenueAndExpensesPerBooksAmt>240207</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>57650</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>182557</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>MISC CURATORIAL EXPENSES</Desc>
        <RevenueAndExpensesPerBooksAmt>41418</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>41418</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>MISC OFFICE EXPENSES</Desc>
        <RevenueAndExpensesPerBooksAmt>45112</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>17603</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>27509</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>OTHER INSURANCE</Desc>
        <RevenueAndExpensesPerBooksAmt>15226</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>7910</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>7316</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>SAFEKEEPING/CUSTODIAN FEES</Desc>
        <RevenueAndExpensesPerBooksAmt>21923</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>21923</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>GETTY CONSERVATION</Desc>
        <RevenueAndExpensesPerBooksAmt>36000</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>36000</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>WEBSITE DEV &amp; EXP</Desc>
        <RevenueAndExpensesPerBooksAmt>2162</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="OtherIncomeSch2">
      <OtherIncomeDetail>
        <Desc>MISC - K1 INCOME</Desc>
        <RevenueAndExpensesPerBooksAmt>0</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>640638</NetInvestmentIncomeAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <OtherIncreasesSchedule documentId="OtherIncreasesSch">
      <OtherIncreasesDetail>
        <Desc>NET UNREALIZED GAINS IN INVESTMESNTS</Desc>
        <Amt>9274735</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
    <OtherLiabilitiesSchedule documentId="OtherLiabSch">
      <OtherLiabilitiesDetail>
        <Desc>DEFERRED FEDERAL EXCISE TAX</Desc>
        <BOYBookValueAmt>640678</BOYBookValueAmt>
        <EOYBookValueAmt>769597</EOYBookValueAmt>
      </OtherLiabilitiesDetail>
      <OtherLiabilitiesDetail>
        <Desc>FEDERAL EXCISE TAX PAYABLE</Desc>
        <BOYBookValueAmt>21020</BOYBookValueAmt>
        <EOYBookValueAmt>8986</EOYBookValueAmt>
      </OtherLiabilitiesDetail>
      <OtherLiabilitiesDetail>
        <Desc>RIGHT-OF-USE-LEASE LIABILITIES</Desc>
        <BOYBookValueAmt>67299</BOYBookValueAmt>
        <EOYBookValueAmt>221875</EOYBookValueAmt>
      </OtherLiabilitiesDetail>
    </OtherLiabilitiesSchedule>
    <OtherProfessionalFeesSchedule documentId="OthProfFeesSch">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>CONSULTING/PROFESSIONAL FEE</CategoryTxt>
        <Amt>13437</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>13437</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>INVESTMENT CONSULTING</CategoryTxt>
        <Amt>43350</Amt>
        <NetInvestmentIncomeAmt>43350</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>INVESTMENT MANAGEMENT</CategoryTxt>
        <Amt>121146</Amt>
        <NetInvestmentIncomeAmt>121146</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>0</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="TaxesSchedule">
      <TaxesDetail>
        <CategoryTxt>FEDERAL EXCESS TAX</CategoryTxt>
        <Amt>88466</Amt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>