Liabilities / Assets
9th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 27-6085478 • Pasadena, CA
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
9th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
10th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
98th percentile
Higher net margin than 98% of similar nonprofits.
Top Officer Pay
12th percentile
Higher top officer pay than 12% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
100th percentile
Faster asset growth than 100% of similar nonprofits.
Revenue Growth
100th percentile
Faster revenue growth than 100% of similar nonprofits.
Assets
Up$153,090,265
Up $152,980,755 (+139696%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$153,090,265
Up $152,980,755 (+139696%) from 2024
Revenue
Up$128,412,835
Up $128,387,756 (+511933%) from 2024
Expenses
Up$5,655,846
Up $5,629,318 (+21220%) from 2024
Net Income
Up$122,756,989
Up $122,758,438 (+8471942%) from 2024
Most recent year
2025 • Form 990PFDetailed filing. Detailed filing data is available for this year.
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| WILLIAM H BORTHWICK | Trustee | - | $0 | - | - |
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| AccountingFeesSchedule/AccountingFeesDetail/Amt | 0 | 26316 |
| AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt | 0 | ACCOUNTING FEES |
| AccountingFeesSchedule/AccountingFeesDetail/DisbursementsCharitablePrpsAmt | 0 | 13158 |
| AccountingFeesSchedule/AccountingFeesDetail/NetInvestmentIncomeAmt | 0 | 13158 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 0 | 145420800 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 1 | 519079 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 2 | 138088 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 3 | 2544280 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 0 | 145420800 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 1 | 519079 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 2 | 138088 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 3 | 2544280 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 0 | 192 SHS BERKSHIRE HATH. CL A |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 1 | 1,030 SHS BERKSHIRE HATH. CL B |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 2 | 1,213 SHS ALIBABA |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 3 | 2,446 SHS COSTCO |
| IRS990PF/AddressChangeInd | 0 | X |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionAmt | 0 | 97184 |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt | 0 | 97184 |
| IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt | 0 | 97184 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesChrtblPrpsAmt | 0 | 13158 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesNetInvstIncmAmt | 0 | 13158 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesRevAndExpnssAmt | 0 | 26316 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AdjustedNetIncomeAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstRevAndExpnssAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt | 0 | 5623215 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt | 0 | 5623215 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriRcvdRevAndExpnssAmt | 0 | 128315651 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsNetInvstIncmAmt | 0 | 97184 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsRevAndExpnssAmt | 0 | 97184 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt | 0 | 122756989 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesDsbrsChrtblAmt | 0 | 4155 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesRevAndExpnssAmt | 0 | 4155 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt | 0 | 83792 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesNetInvstIncmAmt | 0 | 234 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt | 0 | 234 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesDsbrsChrtblAmt | 0 | 1200 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesRevAndExpnssAmt | 0 | 1200 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesDsbrsChrtblAmt | 0 | 225 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesRevAndExpnssAmt | 0 | 726 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt | 0 | 5641953 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt | 0 | 13392 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt | 0 | 5655846 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt | 0 | 97184 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt | 0 | 128412835 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt | 0 | 18738 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt | 0 | 13392 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt | 0 | 32631 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt | 0 | 122756989 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt | 0 | 30223766 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt | 0 | 153090265 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 109510 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 153090265 |
| IRS990PF/DistributableAmountGrp/DistributableAsAdjustedAmt | 0 | 6696816 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeAdjAmt | 0 | 6696816 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeDedAmt | 0 | 6696816 |
| IRS990PF/DistributableAmountGrp/MinimumInvestmentReturnAmt | 0 | 6697981 |
| IRS990PF/DistributableAmountGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 1165 |
| IRS990PF/DistributableAmountGrp/TotalTaxAmt | 0 | 1165 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt | 0 | 500 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExemptFrgnOrgTaxWthldAtSrceAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt | 0 | 1165 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt | 0 | 1165 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 1165 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxDueAmt | 0 | 665 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt | 0 | 500 |
| IRS990PF/FMVAssetsEOYAmt | 0 | 153090265 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockBOYAmt | 0 | 101876 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYAmt | 0 | 148622247 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYFMVAmt | 0 | 148622247 |
| IRS990PF/Form990PFBalanceSheetsGrp/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningBOYAmt | 0 | 109510 |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningEOYAmt | 0 | 153090265 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt | 0 | 7634 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt | 0 | 4468018 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt | 0 | 4468018 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt | 0 | 109510 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt | 0 | 153090265 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt | 0 | 153090265 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt | 0 | 109510 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt | 0 | 153090265 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 109510 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 153090265 |
| IRS990PF/MethodOfAccountingCashInd | 0 | X |
| IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt | 0 | 135999616 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt | 0 | 630318 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt | 0 | 135369298 |
| IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt | 0 | 2039994 |
| IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt | 0 | 6697981 |
| IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt | 0 | 133959622 |
| IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt | 0 | 135999616 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 0.5 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 0 | WILLIAM H BORTHWICK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 0 | TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 0 | 350 W COLORADO BLVD FIFTH FLOOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 0 | PASADENA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 0 | 91105 |
| IRS990PF/Organization501c3ExemptPFInd | 0 | X |
| IRS990PF/PFQualifyingDistributionsGrp/CharitableAssetsAcquisPaidAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt | 0 | 5641953 |
| IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt | 0 | 5641953 |
| IRS990PF/PFQualifyingDistributionsGrp/SetAsideCashDistriTestAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/SetAsideSuitabilityTestAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UndistrIncmSect4942a2NotAppInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Form1120POLFiledInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt | 0 | 11444 W OLYMPIC BLVD 11TH FLR |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm | 0 | LOS ANGELES |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd | 0 | CA |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd | 0 | 90064 |
| IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd | 0 | CA |
| IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/PersonsWithBooksName/BusinessNameLine1Txt | 0 | HOLTHOUSE CARLIN & VAN TRIGT |
| IRS990PF/StatementsRegardingActyGrp/PhoneNum | 0 | 3105661900 |
| IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/WebsiteAddressTxt | 0 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 0 | 401275 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 1 | 1000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 2 | 5000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 3 | 5000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 4 | 25000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 5 | 20000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 6 | 10000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 7 | 25000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 8 | 5000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 9 | 10000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 10 | 60000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 11 | 250 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 12 | 10000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 13 | 4694673 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 14 | 310161 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 15 | 15000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 16 | 25856 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 0 | (1) DESCRIPTION: 983 SHARES OF BERKSHIRE HATHAWAY CLASS B SECURITIES (2) BOOK VALUE: $65,202 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 07/05/2024 (6) PURPOSE: GENERAL OPERATING SUPPORT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 1 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 2 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 3 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 4 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 5 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 6 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 7 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 8 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 9 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 10 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 11 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 12 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 13 | (1) DESCRIPTION: 6 SHARES OF BERKSHIRE HATHAWAY CLASS A SECURITIES (2) BOOK VALUE: $3,664,008 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 04/16/2025 (6) PURPOSE: GENERAL OPERATING SUPPORT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 14 | (1) DESCRIPTION: 600 SHARES OF BERKSHIRE HATHAWAY CLASS B SECURITIES (2) BOOK VALUE: $58,245 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 04/22/2025 (6) PURPOSE: GENERAL OPERATING SUPPORT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 15 | CHARITABLE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 16 | (1) DESCRIPTION: 48 SHARES OF BERKSHIRE HATHAWAY CLASS B SECURITIES (2) BOOK VALUE: $22,030 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 05/02/2025 (6) PURPOSE: GENERAL OPERATING SUPPORT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 0 | MT VERNON LADIES ASSOCIATION OF THE UNION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 1 | REGENTS OF THE UNIVERSITY OF CALIFORNIA AT BERKELE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 2 | HARVARD WESTLAKE SCHOOL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 3 | ST MATTHEW'S MUSIC GUILD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 4 | Rector Wardens & Vestrymen of St Matthews Parish |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 5 | BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UN |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 6 | LAS MADRINAS |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 7 | HENRY E HUNTINGTON LIBRARY AND ART GALLERY |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 8 | LOS ANGELES PHILHARMONIC ASSOCIATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 9 | JOHN THOMAS DYE SCHOOL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 10 | UCLA FOUNDATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 11 | SIGMA NU EDUCATIONAL FOUNDATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 12 | HONOLULU MUSEUM OF ART |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 13 | JOHN THOMAS DYE SCHOOL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 14 | JOHN THOMAS DYE SCHOOL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 15 | MT VERNON LADIES ASSOCIATION OF THE UNION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 16 | REGENTS OF THE UNIVERSITY OF MICHIGAN |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 0 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 1 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 2 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 3 | SO I |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 4 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 5 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 6 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 7 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 8 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 9 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 10 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 11 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 12 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 13 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 14 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 15 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 16 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 0 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 1 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 2 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 3 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 4 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 5 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 6 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 7 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 8 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 9 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 10 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 11 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 12 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 13 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 14 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 15 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 16 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 0 | 3200 MOUNT VERNON MEMORIAL HIGHWAY |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 1 | 1995 UNIVERSITY AVE STE 401 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 2 | 700 NORTH FARING ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 3 | 1031 BIENVENEDA AVE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 4 | 1031 BIENVENEDA AVE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 5 | 326 GALVEZ STREET |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 6 | 4650 SUNSET BLVD MS 4 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 7 | 1151 OXFORD ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 8 | 151 S GRAND AVE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 9 | 11414 CHALON ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 10 | 10889 WILSHIRE BLVD STE 1000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 11 | 9 NORTH LEWIS STREET |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 12 | 900 S BERENTANIA ST |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 13 | 11414 CHALON ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 14 | 11414 CHALON ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 15 | 3200 MOUNT VERNON MEMORIAL HIGHWAY |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 16 | 3003 S STATE ST STE 8000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 0 | MOUNT VERNON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 1 | BERKELEY |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 2 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 3 | PACIFIC PALISADES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 4 | PACIFIC PALISADES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 5 | STANFORD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 6 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 7 | SAN MARINO |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 8 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 9 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 10 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 11 | LEXINGTON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 12 | HONOLULU |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 13 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 14 | LOS ANGELES |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 15 | MOUNT VERNON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 16 | ANN ARBOR |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 0 | VA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 1 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 2 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 3 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 4 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 5 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 6 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 7 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 8 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 9 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 10 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 11 | VA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 12 | HI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 13 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 14 | CA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 15 | VA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 16 | MI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 0 | 22121 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 1 | 94704 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 2 | 90077 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 3 | 90272 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 4 | 90272 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 5 | 943056105 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 6 | 90027 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 7 | 91108 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 8 | 90012 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 9 | 90049 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 10 | 90024 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 11 | 24450 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 12 | 96814 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 13 | 90049 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 14 | 90049 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 15 | 22121 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 16 | 48109 |
| IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd | 0 | X |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt | 0 | 5623215 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd | 0 | false |
| IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt | 0 | 5612590 |
| IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt | 0 | 29363 |
| IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt | 0 | 6696816 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt | 0 | 1084226 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr2Amt | 0 | 683050 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt | 0 | 9621087 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt | 0 | 5775225 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr5Amt | 0 | 1627226 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt | 0 | 1084226 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt | 0 | 543000 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt | 0 | 16079362 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromCurrentYearAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear2Amt | 0 | 683050 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt | 0 | 9621087 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear4Amt | 0 | 5775225 |
| IRS990PF/UndistributedIncomeGrp/PriorYear1Yr | 0 | 2022 |
| IRS990PF/UndistributedIncomeGrp/PriorYear2Yr | 0 | 2021 |
| IRS990PF/UndistributedIncomeGrp/PriorYear3Yr | 0 | 2020 |
| IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt | 0 | 5641953 |
| IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt | 0 | 16622362 |
| IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt | 0 | 17706588 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt | 0 | 29363 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | 1 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 1 | 2 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 2 | 3 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorPersonNm | 0 | THE SURVIVORS TRUST OF THE MUNGER C |
| IRS990ScheduleB/ContributorInformationGrp/ContributorPersonNm | 1 | THE ALFRED C MUNGER FOUNDATION |
| IRS990ScheduleB/ContributorInformationGrp/ContributorPersonNm | 2 | THE ALFRED C MUNGER FOUNDATION |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 0 | 350 W COLORADO BLVD FIFTH FL |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 1 | 350 W COLORADO BLVD FIFTH FL |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 2 | 350 W COLORADO BLVD FIFTH FL |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 0 | PASADENA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 1 | PASADENA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 2 | PASADENA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 0 | CA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 1 | CA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 2 | CA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 0 | 91105 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 1 | 91105 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 2 | 91105 |
| IRS990ScheduleB/ContributorInformationGrp/NoncashContributionInd | 0 | X |
| IRS990ScheduleB/ContributorInformationGrp/NoncashContributionInd | 1 | X |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 0 | X |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | 120912264 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 1 | 2816305 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 2 | 4587082 |
| IRS990ScheduleB/GeneralRuleInd | 0 | X |
| IRS990ScheduleB/NonCashPropertyContributionGrp/ContributorNum | 0 | 1 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/ContributorNum | 1 | 2 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/FairMarketValueAmt | 0 | 120912264 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/FairMarketValueAmt | 1 | 2816305 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/NoncashPropertyDesc | 0 | 198 SHARES BERKSHIRE HATHAWAY INC. CLASS A SECURITIES |
| IRS990ScheduleB/NonCashPropertyContributionGrp/NoncashPropertyDesc | 1 | 1,213 SHARES OF ALIBABA GROUP HOLDING 1,125 SHARES OF BERKSHIRE HATHAWAY INC. CLASS B SECURITIES 2,4 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/ReceivedDt | 0 | 2024-07-02 |
| IRS990ScheduleB/NonCashPropertyContributionGrp/ReceivedDt | 1 | 2024-10-28 |
| IRS990ScheduleB/Organization501c3ExemptPFInd | 0 | X |
| LegalFeesSchedule/LegalFeesGrp/CategoryTxt | 0 | LEGAL FEES |
| LegalFeesSchedule/LegalFeesGrp/DisbursementsCharitablePrpsAmt | 0 | 4155 |
| LegalFeesSchedule/LegalFeesGrp/LegalFeesAmt | 0 | 4155 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc | 0 | BANK SERVICE FEE |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt | 0 | 234 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt | 0 | 234 |
| OtherIncreasesSchedule/OtherIncreasesDetail/Amt | 0 | 1622480 |
| OtherIncreasesSchedule/OtherIncreasesDetail/Amt | 1 | 28601286 |
| OtherIncreasesSchedule/OtherIncreasesDetail/Desc | 0 | UNREALIZED GAIN ON DONATED SECURITIES |
| OtherIncreasesSchedule/OtherIncreasesDetail/Desc | 1 | UNREALIZED GAIN ON INVESTMENTS |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/Amt | 0 | 1200 |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/CategoryTxt | 0 | OUTSIDE SERVICES |
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