<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-05-03T17:13:48-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>871353108</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>EISNER ADVISORY GROUP LLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>4225 EXECUTIVE SQUARE SUITE 1150</AddressLine1Txt>
        <CityNm>LA JOLLA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>92037</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>330229180</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THE PREUSS FAMILY FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>PREU</BusinessNameControlTxt>
      <PhoneNum>8584540200</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2223 AVENIDA DE LA PLAYA STE 220</AddressLine1Txt>
        <CityNm>LA JOLLA</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>92037</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>PETER PREUSS</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>8584540200</PhoneNum>
      <SignatureDt>2024-04-19</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>PETER</PersonFirstNm>
        <PersonLastNm>PREUSS</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MARY MCGROARTY</PreparerPersonNm>
      <PTIN>P00735101</PTIN>
      <PhoneNum>8585589200</PhoneNum>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="11">
    <IRS990PF documentId="RetDoc1235000001" referenceDocumentId="RetDoc2258700001">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <FMVAssetsEOYAmt>242193</FMVAssetsEOYAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AnalysisOfRevenueAndExpenses>
        <ContriRcvdRevAndExpnssAmt>14506</ContriRcvdRevAndExpnssAmt>
        <InterestOnSavRevAndExpnssAmt>88</InterestOnSavRevAndExpnssAmt>
        <InterestOnSavNetInvstIncmAmt>88</InterestOnSavNetInvstIncmAmt>
        <DividendsRevAndExpnssAmt>3097</DividendsRevAndExpnssAmt>
        <DividendsNetInvstIncmAmt>3097</DividendsNetInvstIncmAmt>
        <NetGainSaleAstRevAndExpnssAmt>138319</NetGainSaleAstRevAndExpnssAmt>
        <GrossSalesPriceAmt>142780</GrossSalesPriceAmt>
        <CapGainNetIncmNetInvstIncmAmt>138319</CapGainNetIncmNetInvstIncmAmt>
        <OtherIncomeRevAndExpnssAmt referenceDocumentId="RetDoc2001500001">171</OtherIncomeRevAndExpnssAmt>
        <OtherIncomeNetInvstIncmAmt>0</OtherIncomeNetInvstIncmAmt>
        <TotalRevAndExpnssAmt>156181</TotalRevAndExpnssAmt>
        <TotalNetInvstIncmAmt>141504</TotalNetInvstIncmAmt>
        <CompOfcrDirTrstRevAndExpnssAmt>0</CompOfcrDirTrstRevAndExpnssAmt>
        <CompOfcrDirTrstNetInvstIncmAmt>0</CompOfcrDirTrstNetInvstIncmAmt>
        <CompOfcrDirTrstDsbrsChrtblAmt>0</CompOfcrDirTrstDsbrsChrtblAmt>
        <LegalFeesRevAndExpnssAmt referenceDocumentId="RetDoc2002100001">534</LegalFeesRevAndExpnssAmt>
        <LegalFeesNetInvstIncmAmt>0</LegalFeesNetInvstIncmAmt>
        <LegalFeesDsbrsChrtblAmt>534</LegalFeesDsbrsChrtblAmt>
        <AccountingFeesRevAndExpnssAmt referenceDocumentId="RetDoc2002200001">1925</AccountingFeesRevAndExpnssAmt>
        <AccountingFeesNetInvstIncmAmt>1155</AccountingFeesNetInvstIncmAmt>
        <AccountingFeesChrtblPrpsAmt>770</AccountingFeesChrtblPrpsAmt>
        <OtherProfFeesRevAndExpnssAmt referenceDocumentId="RetDoc2002300001">2005</OtherProfFeesRevAndExpnssAmt>
        <OtherProfFeesNetInvstIncmAmt>2005</OtherProfFeesNetInvstIncmAmt>
        <OtherProfFeesDsbrsChrtblAmt>0</OtherProfFeesDsbrsChrtblAmt>
        <TaxesRevAndExpnssAmt referenceDocumentId="RetDoc2002500001">6717</TaxesRevAndExpnssAmt>
        <TaxesNetInvstIncmAmt>0</TaxesNetInvstIncmAmt>
        <TaxesDsbrsChrtblAmt>125</TaxesDsbrsChrtblAmt>
        <TotOprExpensesRevAndExpnssAmt>11181</TotOprExpensesRevAndExpnssAmt>
        <TotOprExpensesNetInvstIncmAmt>3160</TotOprExpensesNetInvstIncmAmt>
        <TotOprExpensesDsbrsChrtblAmt>1429</TotOprExpensesDsbrsChrtblAmt>
        <ContriPaidRevAndExpnssAmt>228341</ContriPaidRevAndExpnssAmt>
        <ContriPaidDsbrsChrtblAmt>228341</ContriPaidDsbrsChrtblAmt>
        <TotalExpensesRevAndExpnssAmt>239522</TotalExpensesRevAndExpnssAmt>
        <TotalExpensesNetInvstIncmAmt>3160</TotalExpensesNetInvstIncmAmt>
        <TotalExpensesDsbrsChrtblAmt>229770</TotalExpensesDsbrsChrtblAmt>
        <ExcessRevenueOverExpensesAmt>-83341</ExcessRevenueOverExpensesAmt>
        <NetInvestmentIncomeAmt>138344</NetInvestmentIncomeAmt>
      </AnalysisOfRevenueAndExpenses>
      <Form990PFBalanceSheetsGrp>
        <CashBOYAmt>6992</CashBOYAmt>
        <CashEOYAmt>4411</CashEOYAmt>
        <CashEOYFMVAmt>4411</CashEOYFMVAmt>
        <SavAndTempCashInvstBOYAmt>112060</SavAndTempCashInvstBOYAmt>
        <SavAndTempCashInvstEOYAmt>5055</SavAndTempCashInvstEOYAmt>
        <SavAndTempCashInvstEOYFMVAmt>5055</SavAndTempCashInvstEOYFMVAmt>
        <OtherNtsAndLoansRcvblAmt>20041</OtherNtsAndLoansRcvblAmt>
        <OtherRcvblAllwncDbtflAcctAmt>0</OtherRcvblAllwncDbtflAcctAmt>
        <OtherNtsAndLoansRcvblBOYAmt>3840</OtherNtsAndLoansRcvblBOYAmt>
        <OtherNtsAndLoansRcvblEOYAmt referenceDocumentId="RetDoc2058700001">20041</OtherNtsAndLoansRcvblEOYAmt>
        <OtherNtsAndLoansRcvblEOYFMVAmt>20041</OtherNtsAndLoansRcvblEOYFMVAmt>
        <CorporateStockBOYAmt>4715</CorporateStockBOYAmt>
        <CorporateStockEOYAmt referenceDocumentId="RetDoc2018900001">14759</CorporateStockEOYAmt>
        <CorporateStockEOYFMVAmt>212686</CorporateStockEOYFMVAmt>
        <TotalAssetsBOYAmt>127607</TotalAssetsBOYAmt>
        <TotalAssetsEOYAmt>44266</TotalAssetsEOYAmt>
        <TotalAssetsEOYFMVAmt>242193</TotalAssetsEOYFMVAmt>
        <TotalLiabilitiesBOYAmt>0</TotalLiabilitiesBOYAmt>
        <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
        <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
        <CapitalStockBOYAmt>0</CapitalStockBOYAmt>
        <CapitalStockEOYAmt>0</CapitalStockEOYAmt>
        <AdditionalPaidInCapitalBOYAmt>0</AdditionalPaidInCapitalBOYAmt>
        <AdditionalPaidInCapitalEOYAmt>0</AdditionalPaidInCapitalEOYAmt>
        <RetainedEarningBOYAmt>127607</RetainedEarningBOYAmt>
        <RetainedEarningEOYAmt>44266</RetainedEarningEOYAmt>
        <TotNetAstOrFundBalancesBOYAmt>127607</TotNetAstOrFundBalancesBOYAmt>
        <TotNetAstOrFundBalancesEOYAmt>44266</TotNetAstOrFundBalancesEOYAmt>
        <TotalLiabilitiesNetAstBOYAmt>127607</TotalLiabilitiesNetAstBOYAmt>
        <TotalLiabilitiesNetAstEOYAmt>44266</TotalLiabilitiesNetAstEOYAmt>
      </Form990PFBalanceSheetsGrp>
      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>127607</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>-83341</ExcessRevenueOverExpensesAmt>
        <OtherIncreasesAmt>0</OtherIncreasesAmt>
        <SubtotalAmt>44266</SubtotalAmt>
        <OtherDecreasesAmt>0</OtherDecreasesAmt>
        <TotNetAstOrFundBalancesEOYAmt>44266</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>SALE OF PUBLICLY TRADED SECURITIES</PropertyDesc>
          <AcquiredDt>2023-01-01</AcquiredDt>
          <SoldDt>2023-12-31</SoldDt>
          <GrossSalesPriceAmt>142780</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>4461</CostOrOtherBasisAmt>
          <GainOrLossAmt>138319</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>138319</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapitalGainNetIncomeAmt>138319</CapitalGainNetIncomeAmt>
      </CapGainsLossTxInvstIncmDetail>
      <ExciseTaxBasedOnInvstIncmGrp>
        <InvestmentIncomeExciseTaxAmt>1923</InvestmentIncomeExciseTaxAmt>
        <TaxUnderSection511Amt>0</TaxUnderSection511Amt>
        <SubtotalAmt>1923</SubtotalAmt>
        <SubtitleATaxAmt>0</SubtitleATaxAmt>
        <TaxBasedOnInvestmentIncomeAmt>1923</TaxBasedOnInvestmentIncomeAmt>
        <EstimatedPlusOvpmtIncmTxAmt>5600</EstimatedPlusOvpmtIncmTxAmt>
        <ExemptFrgnOrgTaxWthldAtSrceAmt>0</ExemptFrgnOrgTaxWthldAtSrceAmt>
        <ExtsnRequestIncomeTaxPaidAmt>0</ExtsnRequestIncomeTaxPaidAmt>
        <BackupWithholdingWithheldAmt>0</BackupWithholdingWithheldAmt>
        <TotalPaymentsAndCreditsAmt>5600</TotalPaymentsAndCreditsAmt>
        <EsPenaltyAmt>0</EsPenaltyAmt>
        <OverpaymentAmt>3677</OverpaymentAmt>
        <AppliedToESTaxAmt>3677</AppliedToESTaxAmt>
        <RefundAmt>0</RefundAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd>0</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>0</MoreThan100SpentInd>
        <Form1120POLFiledInd>0</Form1120POLFiledInd>
        <Section4955OrganizationTaxAmt>0</Section4955OrganizationTaxAmt>
        <Section4955ManagersTaxAmt>0</Section4955ManagersTaxAmt>
        <TaxReimbursedAmt>0</TaxReimbursedAmt>
        <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd>0</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>1</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>1</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>CA</OrgReportOrRegisterStateCd>
        <OrgReportOrRegisterStateCd>DE</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd>1</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>0</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>0</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>0</OwnControlledEntityInd>
        <DonorAdvisedFundInd>0</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>1</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>THEPREUSSFOUNDATION.ORG</WebsiteAddressTxt>
        <IndividualWithBooksNm>M AUSTIN DIR OF FINANCE</IndividualWithBooksNm>
        <PhoneNum>8584540200</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </LocationOfBooksUSAddress>
        <ForeignAccountsQuestionInd>0</ForeignAccountsQuestionInd>
      </StatementsRegardingActyGrp>
      <StatementsRegardingActy4720Grp>
        <SaleOrExchDisqualifiedPrsnInd>0</SaleOrExchDisqualifiedPrsnInd>
        <BrrwOrLendDisqualifiedPrsnInd>0</BrrwOrLendDisqualifiedPrsnInd>
        <FurnGoodsDisqualifiedPrsnInd>1</FurnGoodsDisqualifiedPrsnInd>
        <PayCompDisqualifiedPrsnInd>0</PayCompDisqualifiedPrsnInd>
        <TransferAstDisqualifiedPrsnInd>0</TransferAstDisqualifiedPrsnInd>
        <PaymentToGovernmentOfficialInd>0</PaymentToGovernmentOfficialInd>
        <ActsFailToQlfyAsExceptionsInd>0</ActsFailToQlfyAsExceptionsInd>
        <UncorrectedPriorActsInd>0</UncorrectedPriorActsInd>
        <UndistributedIncomePYInd>0</UndistributedIncomePYInd>
        <BusinessHoldingsInd>0</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>0</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>0</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>0</InfluenceLegislationInd>
        <InfluenceElectionInd>0</InfluenceElectionInd>
        <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
        <GrantsToOrganizationsInd>1</GrantsToOrganizationsInd>
        <NoncharitablePurposeInd>0</NoncharitablePurposeInd>
        <TransactionsFailToQlfyAsExcInd>0</TransactionsFailToQlfyAsExcInd>
        <MaintainedExpenditureRspnsInd referenceDocumentId="RetDoc2118100001">1</MaintainedExpenditureRspnsInd>
        <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
        <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
        <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
        <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      </StatementsRegardingActy4720Grp>
      <OfficerDirTrstKeyEmplInfoGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>PETER G PREUSS</PersonNm>
          <USAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </USAddress>
          <TitleTxt>PRESIDENT</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>PEGGY PREUSS</PersonNm>
          <USAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </USAddress>
          <TitleTxt>SECRETARY</TitleTxt>
          <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
          <CompensationAmt>0</CompensationAmt>
          <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
          <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
        </OfficerDirTrstKeyEmplGrp>
        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <OtherEmployeePaidOver50kCnt>0</OtherEmployeePaidOver50kCnt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
        <ContractorPaidOver50kCnt>0</ContractorPaidOver50kCnt>
      </OfficerDirTrstKeyEmplInfoGrp>
      <SumOfProgramRelatedInvstGrp>
        <TotalAmt>0</TotalAmt>
      </SumOfProgramRelatedInvstGrp>
      <MinimumInvestmentReturnGrp>
        <AverageMonthlyFMVOfSecAmt>168605</AverageMonthlyFMVOfSecAmt>
        <AverageMonthlyCashBalancesAmt>81593</AverageMonthlyCashBalancesAmt>
        <FMVAllOtherNoncharitableAstAmt>0</FMVAllOtherNoncharitableAstAmt>
        <TotalFMVOfUnusedAssetsAmt>250198</TotalFMVOfUnusedAssetsAmt>
        <ReductionClaimedAmt>0</ReductionClaimedAmt>
        <AcquisitionIndebtednessAmt>0</AcquisitionIndebtednessAmt>
        <AdjustedTotalFMVOfUnusedAstAmt>250198</AdjustedTotalFMVOfUnusedAstAmt>
        <CashDeemedCharitableAmt>3753</CashDeemedCharitableAmt>
        <NetVlNoncharitableAssetsAmt>246445</NetVlNoncharitableAssetsAmt>
        <MinimumInvestmentReturnAmt>12322</MinimumInvestmentReturnAmt>
      </MinimumInvestmentReturnGrp>
      <DistributableAmountGrp>
        <MinimumInvestmentReturnAmt>12322</MinimumInvestmentReturnAmt>
        <TaxBasedOnInvestmentIncomeAmt>1923</TaxBasedOnInvestmentIncomeAmt>
        <TotalTaxAmt>1923</TotalTaxAmt>
        <DistributableBeforeAdjAmt>10399</DistributableBeforeAdjAmt>
        <RecoveriesQualfiedDistriAmt>0</RecoveriesQualfiedDistriAmt>
        <DistributableBeforeDedAmt>10399</DistributableBeforeDedAmt>
        <DeductionFromDistributableAmt>0</DeductionFromDistributableAmt>
        <DistributableAsAdjustedAmt>10399</DistributableAsAdjustedAmt>
      </DistributableAmountGrp>
      <PFQualifyingDistributionsGrp>
        <ExpensesAndContributionsAmt>229770</ExpensesAndContributionsAmt>
        <ProgramRelatedInvstTotalAmt>0</ProgramRelatedInvstTotalAmt>
        <QualifyingDistributionsAmt>229770</QualifyingDistributionsAmt>
      </PFQualifyingDistributionsGrp>
      <UndistributedIncomeGrp>
        <DistributableAsAdjustedAmt>10399</DistributableAsAdjustedAmt>
        <UndistributedIncomePYAmt>0</UndistributedIncomePYAmt>
        <TotalForPriorYearsAmt>0</TotalForPriorYearsAmt>
        <ExcessDistributionCyovYr5Amt>413766</ExcessDistributionCyovYr5Amt>
        <ExcessDistributionCyovYr4Amt>447794</ExcessDistributionCyovYr4Amt>
        <ExcessDistributionCyovYr3Amt>336460</ExcessDistributionCyovYr3Amt>
        <ExcessDistributionCyovYr2Amt>367814</ExcessDistributionCyovYr2Amt>
        <ExcessDistributionCyovYr1Amt>281844</ExcessDistributionCyovYr1Amt>
        <TotalExcessDistributionCyovAmt>1847678</TotalExcessDistributionCyovAmt>
        <QualifyingDistributionsAmt>229770</QualifyingDistributionsAmt>
        <AppliedToYear1Amt>0</AppliedToYear1Amt>
        <AppliedToPriorYearsAmt>0</AppliedToPriorYearsAmt>
        <TreatedAsDistriFromCorpusAmt>0</TreatedAsDistriFromCorpusAmt>
        <AppliedToCurrentYearAmt>10399</AppliedToCurrentYearAmt>
        <RemainingDistriFromCorpusAmt>219371</RemainingDistriFromCorpusAmt>
        <ExcessDistriCyovAppCYCorpusAmt>0</ExcessDistriCyovAppCYCorpusAmt>
        <ExcessDistributionCyovAppCYAmt>0</ExcessDistributionCyovAppCYAmt>
        <TotalCorpusAmt>2067049</TotalCorpusAmt>
        <PriorYearUndistributedIncmAmt>0</PriorYearUndistributedIncmAmt>
        <PriorYearDeficiencyOrTaxAmt>0</PriorYearDeficiencyOrTaxAmt>
        <Taxable1Amt>0</Taxable1Amt>
        <Taxable2Amt>0</Taxable2Amt>
        <UndistributedIncomeCYAmt>0</UndistributedIncomeCYAmt>
        <CorpusDistri170b1EOr4942g3Amt>0</CorpusDistri170b1EOr4942g3Amt>
        <ExcessDistriCyovFromYr5Amt>413766</ExcessDistriCyovFromYr5Amt>
        <ExcessDistriCyovToNextYrAmt>1653283</ExcessDistriCyovToNextYrAmt>
        <ExcessFromYear4Amt>447794</ExcessFromYear4Amt>
        <ExcessFromYear3Amt>336460</ExcessFromYear3Amt>
        <ExcessFromYear2Amt>367814</ExcessFromYear2Amt>
        <ExcessFromYear1Amt>281844</ExcessFromYear1Amt>
        <ExcessFromCurrentYearAmt>219371</ExcessFromCurrentYearAmt>
      </UndistributedIncomeGrp>
      <SupplementaryInformationGrp>
        <ContributingManagerNm>PETER G PREUSS</ContributingManagerNm>
        <ContributingManagerNm>PEGGY PREUSS</ContributingManagerNm>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>30000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>30000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>30000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>28639</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>30000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
            <CityNm>LA JOLLA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92037</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PF</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH.</GrantOrContributionPurposeTxt>
          <Amt>79702</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>228341</TotalGrantOrContriPdDurYrAmt>
        <TotalGrantOrContriApprvFutAmt>0</TotalGrantOrContriApprvFutAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <IntOnSavAndTempCashInvstGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>88</ExclusionAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>3097</ExclusionAmt>
        </DividendsAndInterestFromSecDtl>
        <GainSalesAstOthThanInvntryGrp>
          <ExclusionCd>18</ExclusionCd>
          <ExclusionAmt>138319</ExclusionAmt>
        </GainSalesAstOthThanInvntryGrp>
        <OtherRevenueDescribedGrp>
          <Desc>DEPARTMENT OF THE TREASURY INTEREST</Desc>
          <ExclusionAmt>171</ExclusionAmt>
        </OtherRevenueDescribedGrp>
        <SubtotalsIncmProducingActyGrp>
          <UnrelatedBusinessTaxblIncmAmt>0</UnrelatedBusinessTaxblIncmAmt>
          <ExclusionAmt>141675</ExclusionAmt>
          <RelatedOrExemptFunctionIncmAmt>0</RelatedOrExemptFunctionIncmAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>141675</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>0</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>0</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>0</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>0</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>0</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>0</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>0</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>0</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>0</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>0</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <GeneralRuleInd>X</GeneralRuleInd>
      <ContributorInformationGrp>
        <ContributorNum>1</ContributorNum>
        <ContributorPersonNm>PETER AND PEGGY PREUSS</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>6573</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>2</ContributorNum>
        <ContributorPersonNm>PETER AND PEGGY PREUSS</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>1955</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>3</ContributorNum>
        <ContributorPersonNm>PETER AND PEGGY PREUSS</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>1377</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>4</ContributorNum>
        <ContributorPersonNm>PETER AND PEGGY PREUSS</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>4070</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <ContributorInformationGrp>
        <ContributorNum>5</ContributorNum>
        <ContributorPersonNm>PETER AND PEGGY PREUSS</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920373218</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>531</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
        <NoncashPropertyDesc>425 SH APPLE INC</NoncashPropertyDesc>
        <FairMarketValueAmt>83410</FairMarketValueAmt>
        <ReceivedDt>2023-12-19</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>2</ContributorNum>
        <NoncashPropertyDesc>175 SH ALPHABET INC</NoncashPropertyDesc>
        <FairMarketValueAmt>24168</FairMarketValueAmt>
        <ReceivedDt>2023-12-19</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>3</ContributorNum>
        <NoncashPropertyDesc>220 SH AFFIRM HOLDING INC</NoncashPropertyDesc>
        <FairMarketValueAmt>10676</FairMarketValueAmt>
        <ReceivedDt>2023-12-19</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>4</ContributorNum>
        <NoncashPropertyDesc>125 SH APPLIED MATERIAL</NoncashPropertyDesc>
        <FairMarketValueAmt>20173</FairMarketValueAmt>
        <ReceivedDt>2023-12-19</ReceivedDt>
      </NonCashPropertyContributionGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>5</ContributorNum>
        <NoncashPropertyDesc>130 SH SOLAR EDGE TECHNOLOGIES INC</NoncashPropertyDesc>
        <FairMarketValueAmt>12783</FairMarketValueAmt>
        <ReceivedDt>2023-12-19</ReceivedDt>
      </NonCashPropertyContributionGrp>
    </IRS990ScheduleB>
    <AccountingFeesSchedule documentId="RetDoc2002200001">
      <AccountingFeesDetail>
        <CategoryTxt>ACCOUNTING FEES</CategoryTxt>
        <Amt>1925</Amt>
        <NetInvestmentIncomeAmt>1155</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>770</DisbursementsCharitablePrpsAmt>
      </AccountingFeesDetail>
    </AccountingFeesSchedule>
    <ExpenditureResponsibilityStmt documentId="RetDoc2118100001">
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-01-26</GrantDt>
        <GrantAmt>30000</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>30000</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-03-22</GrantDt>
        <GrantAmt>30000</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>30000</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-05-23</GrantDt>
        <GrantAmt>30000</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>30000</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-07-27</GrantDt>
        <GrantAmt>28639</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>28639</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-09-30</GrantDt>
        <GrantAmt>30000</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>30000</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
      <ExpenditureResponsibilityGrp>
        <BusinessName>
          <BusinessNameLine1Txt>THE PREUSS FOUNDATION INC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>2223 AVENIDA DE LA PLAYA SUITE 220</AddressLine1Txt>
          <CityNm>LA JOLLA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92037</ZIPCd>
        </USAddress>
        <GrantDt>2023-11-30</GrantDt>
        <GrantAmt>79702</GrantAmt>
        <PurposeOfGrantTxt>ALL GRANTS ARE TO BE USED FOR THE GENERAL PURPOSE OF THE GRANTEE, WHICH IS TO SUPPORT CHARITABLE, EDUCATIONAL, AND SCIENTIFIC PURPOSES, INCLUDING TO PROMOTE BRAIN TUMOR AND MEDICAL RESEARCH. FOUNDATION ACTIVITIES INCLUDE ORGANIZING CONFERENCES, SUPPORTING HIGHER EDUCATION, AND MAINTAINING AN OFFICE FOR FOUNDATION BUSINESS.</PurposeOfGrantTxt>
        <ExpendedByGranteeAmt>79702</ExpendedByGranteeAmt>
        <AnyDiversionByGranteeTxt>NONE</AnyDiversionByGranteeTxt>
        <DatesOfReportsByGranteeTxt>GRANTOR HAS CONSTANT AND COMPLETE ACCESS TO INFO CONCERNING ALL ACTIVITIES.</DatesOfReportsByGranteeTxt>
        <VerificationDt>2023-12-31</VerificationDt>
        <ResultsOfVerificationTxt>ON-GOING INVOLVEMENT WITH GRANTEE. DISTRIBUTION OUT OF CORPUS ON GRANTEE'S FORM 990-PF, PART XIV VERIFIED FOR EACH YEAR.</ResultsOfVerificationTxt>
      </ExpenditureResponsibilityGrp>
    </ExpenditureResponsibilityStmt>
    <GeneralExplanationAttachment documentId="RetDoc2258700001">
      <GeneralExplanationGrp>
        <IdentifierTxt>STATEMENT REGARDING ACTIVITIES</IdentifierTxt>
        <FormAndLineReferenceDesc>PART VI-B, QUESTION 1(A)(3)</FormAndLineReferenceDesc>
        <MediumExplanationTxt>PETER PREUSS PROVIDED FACILITIES FREE OF CHARGE TO THE FOUNDATION IN HIS CAPACITY AS PRESIDENT. THE FACILITIES WERE USED BY THE FOUNDATION FOR GENERAL OPERATIONS.</MediumExplanationTxt>
      </GeneralExplanationGrp>
    </GeneralExplanationAttachment>
    <InvestmentsCorpStockSchedule documentId="RetDoc2018900001">
      <InvestmentsCorporateStockGrp>
        <StockNm>ALPHABET INC. CLASS A (GOOGL)</StockNm>
        <EOYBookValueAmt>1293</EOYBookValueAmt>
        <EOYFMVAmt>16064</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>ALPHABET INC. CLASS C (GOOG)</StockNm>
        <EOYBookValueAmt>1676</EOYBookValueAmt>
        <EOYFMVAmt>21139</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>APPLE INC (AAPL)</StockNm>
        <EOYBookValueAmt>6109</EOYBookValueAmt>
        <EOYFMVAmt>76049</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>APPLIED MATERIALS (AMAT)</StockNm>
        <EOYBookValueAmt>4070</EOYBookValueAmt>
        <EOYFMVAmt>20259</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>COSTCO WHOLESALE CO (COST)</StockNm>
        <EOYBookValueAmt>452</EOYBookValueAmt>
        <EOYFMVAmt>6601</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>MICROSOFT CORP (MSFT)</StockNm>
        <EOYBookValueAmt>289</EOYBookValueAmt>
        <EOYFMVAmt>16922</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>SOLAREDGE TECH (SEDG)</StockNm>
        <EOYBookValueAmt>530</EOYBookValueAmt>
        <EOYFMVAmt>12168</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>TESLA INC (TSLA)</StockNm>
        <EOYBookValueAmt>340</EOYBookValueAmt>
        <EOYFMVAmt>43484</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <LegalFeesSchedule documentId="RetDoc2002100001">
      <LegalFeesGrp>
        <CategoryTxt>LEGAL FEES</CategoryTxt>
        <LegalFeesAmt>534</LegalFeesAmt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>534</DisbursementsCharitablePrpsAmt>
      </LegalFeesGrp>
    </LegalFeesSchedule>
    <OtherIncomeSchedule2 documentId="RetDoc2001500001">
      <OtherIncomeDetail>
        <Desc>DEPARTMENT OF THE TREASURY INTEREST</Desc>
        <RevenueAndExpensesPerBooksAmt>171</RevenueAndExpensesPerBooksAmt>
        <AdjustedNetIncomeAmt>171</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <OtherNotesLoansRcvblShortSch2 documentId="RetDoc2058700001">
      <OtherNotesLoansRcvblShortGrp>
        <Organization501c3Name>
          <BusinessNameLine1Txt>DEPARTMENT OF THE TREASURY - REFUND RECEIVABLE</BusinessNameLine1Txt>
        </Organization501c3Name>
        <BalanceDueAmt>0</BalanceDueAmt>
      </OtherNotesLoansRcvblShortGrp>
    </OtherNotesLoansRcvblShortSch2>
    <OtherProfessionalFeesSchedule documentId="RetDoc2002300001">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>INVESTMENT MANAGEMENT FEES</CategoryTxt>
        <Amt>2005</Amt>
        <NetInvestmentIncomeAmt>2005</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="RetDoc2002500001">
      <TaxesDetail>
        <CategoryTxt>STATE TAXES</CategoryTxt>
        <Amt>125</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>125</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
      <TaxesDetail>
        <CategoryTxt>FEDERAL EXCISE TAX</CategoryTxt>
        <Amt>6592</Amt>
        <NetInvestmentIncomeAmt>0</NetInvestmentIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>
