Liabilities / Assets
24th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 04-3216929 • Boston, MA
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
24th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
22nd percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
15th percentile
Higher net margin than 15% of similar nonprofits.
Top Officer Pay
64th percentile
Higher top officer pay than 64% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
57th percentile
Faster asset growth than 57% of similar nonprofits.
Revenue Growth
27th percentile
Faster revenue growth than 27% of similar nonprofits.
Assets
Up$5,117,742
Up $274,851 (+5.7%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$5,117,742
Up $274,851 (+5.7%) from 2024
Revenue
Down$135,511
Down $5,917 (-4.2%) from 2024
Expenses
Down$168,436
Down $1,575 (-0.9%) from 2024
Net Income
Down-$32,925
Down $4,342 (-15%) 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 |
|---|---|---|---|---|---|
| Kristin Abati | Trustee | - | $0 | - | - |
| Timothy P Garrison | 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 | 2050 |
| AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt | 0 | Tax preparation fees |
| AccountingFeesSchedule/AccountingFeesDetail/DisbursementsCharitablePrpsAmt | 0 | 1025 |
| AccountingFeesSchedule/AccountingFeesDetail/NetInvestmentIncomeAmt | 0 | 1025 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 0 | 257390 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 1 | 132288 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 2 | 107393 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 3 | 134750 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 4 | 140210 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 5 | 1785150 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 6 | 78400 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 7 | 986195 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 8 | 24665 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 0 | 257390 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 1 | 132288 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 2 | 107393 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 3 | 134750 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 4 | 140210 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 5 | 1785150 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 6 | 78400 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 7 | 986195 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 8 | 24665 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 0 | 1000 units GE |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 1 | 250 units GEV |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 2 | 750 units CVX |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 3 | 1250 units XOM |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 4 | 1750 units WFC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 5 | 7500 units ADI |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 6 | 3500 units INTC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 7 | 4750 units TXN |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 8 | 333 units GEHC |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionAmt | 0 | 68721 |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionAmt | 0 | 66790 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt | 0 | 135511 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/RelatedOrExemptFunctionIncmAmt | 0 | 0 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/UnrelatedBusinessTaxblIncmAmt | 0 | 0 |
| IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt | 0 | 135511 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesChrtblPrpsAmt | 0 | 1025 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesNetInvstIncmAmt | 0 | 1025 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesRevAndExpnssAmt | 0 | 2050 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CapGainNetIncmNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstRevAndExpnssAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt | 0 | 135000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt | 0 | 135000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsNetInvstIncmAmt | 0 | 68721 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsRevAndExpnssAmt | 0 | 68721 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt | 0 | -32925 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavNetInvstIncmAmt | 0 | 66790 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavRevAndExpnssAmt | 0 | 66790 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt | 0 | 111500 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesDsbrsChrtblAmt | 0 | 70 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt | 0 | 70 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesDsbrsChrtblAmt | 0 | 7662 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesNetInvstIncmAmt | 0 | 22986 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesRevAndExpnssAmt | 0 | 30648 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ScheduleBNotRequiredInd | 0 | X |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesRevAndExpnssAmt | 0 | 668 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt | 0 | 143757 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt | 0 | 24011 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt | 0 | 168436 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt | 0 | 135511 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt | 0 | 135511 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt | 0 | 8757 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt | 0 | 24011 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt | 0 | 33436 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt | 0 | -32925 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherDecreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt | 0 | 307776 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt | 0 | 5117742 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 4842891 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 5117742 |
| IRS990PF/DistributableAmountGrp/DeductionFromDistributableAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/DistributableAsAdjustedAmt | 0 | 232589 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeAdjAmt | 0 | 232589 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeDedAmt | 0 | 232589 |
| IRS990PF/DistributableAmountGrp/MinimumInvestmentReturnAmt | 0 | 234139 |
| IRS990PF/DistributableAmountGrp/RecoveriesQualfiedDistriAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 1550 |
| IRS990PF/DistributableAmountGrp/TotalTaxAmt | 0 | 1550 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/AppliedToESTaxAmt | 0 | 450 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/BackupWithholdingWithheldAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EsPenaltyAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt | 0 | 2000 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExemptFrgnOrgTaxWthldAtSrceAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExtsnRequestIncomeTaxPaidAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/Form2220AttachedInd | 0 | X |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt | 0 | 1550 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/OverpaymentAmt | 0 | 450 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/RefundAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtitleATaxAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt | 0 | 1550 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 1550 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxUnderSection511Amt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt | 0 | 2000 |
| IRS990PF/FMVAssetsEOYAmt | 0 | 5117742 |
| IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockBOYAmt | 0 | 7077271 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockEOYAmt | 0 | 6944482 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockBOYAmt | 0 | 3337305 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYAmt | 0 | 3646441 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYFMVAmt | 0 | 3646441 |
| IRS990PF/Form990PFBalanceSheetsGrp/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningBOYAmt | 0 | -2234380 |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningEOYAmt | 0 | -1826740 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt | 0 | 1505586 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt | 0 | 1471301 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt | 0 | 1471301 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt | 0 | 4842891 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt | 0 | 5117742 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt | 0 | 5117742 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt | 0 | 4842891 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt | 0 | 5117742 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 4842891 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 5117742 |
| IRS990PF/MethodOfAccountingCashInd | 0 | X |
| IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt | 0 | 4754085 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt | 0 | 1429916 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt | 0 | 3324169 |
| IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt | 0 | 71311 |
| IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt | 0 | 234139 |
| IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt | 0 | 4682774 |
| IRS990PF/MinimumInvestmentReturnGrp/ReductionClaimedAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt | 0 | 4754085 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompOfHghstPdCntrctOrNONETxt | 0 | NONE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompOfHghstPdEmplOrNONETxt | 0 | NONE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/ContractorPaidOver50kCnt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 1.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 1.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 0 | Kristin Abati |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 1 | Timothy P Garrison |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 0 | Trustee |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 1 | Trustee |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 0 | Choate Hall Stewart LLP Two IntL |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 1 | Choate Hall Stewart LLP Two IntL |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine2Txt | 0 | Place |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine2Txt | 1 | Place |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 0 | Boston |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 1 | Boston |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 0 | 02110 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 1 | 02110 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OtherEmployeePaidOver50kCnt | 0 | 0 |
| IRS990PF/Organization501c3ExemptPFInd | 0 | X |
| IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt | 0 | 143757 |
| IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt | 0 | 143757 |
| IRS990PF/StatementsRegardingActy4720Grp/ActsFailToQlfyAsExceptionsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd | 0 | 1 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd | 0 | 1 |
| IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Form1120POLFiledInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/IndividualWithBooksNm | 0 | Choate Hall Stewart LLP |
| IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt | 0 | Two International place |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm | 0 | Boston |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd | 0 | 02110 |
| IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/PhoneNum | 0 | 6172484760 |
| IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section4955ManagersTaxAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section4955OrganizationTaxAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/TaxReimbursedAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/WebsiteAddressTxt | 0 | N/A |
| IRS990PF/SumOfProgramRelatedInvstGrp/TotalAmt | 0 | 0 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 0 | 100000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 1 | 35000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 0 | General Purpose |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 1 | General Purpose |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 0 | John & Anna Newton Porter Foundation |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 1 | Pan Massachusetts Challenge Trust |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 0 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 1 | PC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 0 | N/A |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 1 | N/A |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 0 | PO Box 325 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 1 | 77 4th Avenue |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 0 | Alton Bay |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 1 | Needham Heights |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 0 | NH |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 0 | 03810 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 1 | 02494 |
| IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd | 0 | X |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt | 0 | 0 |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt | 0 | 135000 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt | 0 | 143757 |
| IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt | 0 | 232589 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt | 0 | 86775 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt | 0 | 18375 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr5Amt | 0 | 68400 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt | 0 | 86775 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt | 0 | 143757 |
| IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/Taxable1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/Taxable2Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt | 0 | 86775 |
| IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt | 0 | 2057 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt | 0 | 0 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc | 0 | MA filing fee |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt | 0 | 70 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt | 0 | 0 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt | 0 | 70 |
| OtherIncreasesSchedule/OtherIncreasesDetail/Amt | 0 | 307776 |
| OtherIncreasesSchedule/OtherIncreasesDetail/Desc | 0 | Unrealized gains on investments |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/Amt | 0 | 30648 |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/CategoryTxt | 0 | Investment management fees |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/DisbursementsCharitablePrpsAmt | 0 | 7662 |
| OtherProfessionalFeesSchedule/OtherProfessionalFeesDetail/NetInvestmentIncomeAmt | 0 | 22986 |
| TaxesSchedule/TaxesDetail/Amt | 0 | 668 |
| TaxesSchedule/TaxesDetail/CategoryTxt | 0 | Excise taxes |
| TaxesSchedule/TaxesDetail/DisbursementsCharitablePrpsAmt | 0 | 0 |
| TaxesSchedule/TaxesDetail/NetInvestmentIncomeAmt | 0 | 0 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Kristin T Abati |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Trustee |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6172484760 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-08-15 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | The Arnold Garrison Foundation |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | ARNO |
| ReturnHeader/Filer/EIN | 0 | 043216929 |
| ReturnHeader/Filer/PhoneNum | 0 | 6172484760 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | Choate LLP PO Box 961019 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Boston |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02196 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 0 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 010494526 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Baker Newman & Noyes |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | PO Box 507 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Portland |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | ME |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 04112 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 2078792100 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-08-15 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Connor Smart |
| ReturnHeader/ReturnTs | 0 | 2025-08-19T07:00:39-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990PF |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-06-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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