Mark Allen Feinberg Charitable

EIN 38-4243971 • East Hampton, NY

274 Old Stone HwyEast Hampton, NY 11937

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

0.00x

Tied with the lowest-debt nonprofits in its peer group.

$10M-$25M nonprofits • Source year 2024

0.00x

Tied with the lowest-debt nonprofits in its peer group.

$10M-$25M nonprofits • Source year 2024

34%

Higher net margin than 79% of similar nonprofits.

$10M-$25M nonprofits • Source year 2024

No value available

No filing with officer rows is available for this organization yet.

35%

Faster asset growth than 90% of similar nonprofits.

$10M-$25M nonprofits • Annualized from 2023 to 2024

113%

Faster revenue growth than 91% of similar nonprofits.

$10M-$25M nonprofits • Annualized from 2023 to 2024

Balance Sheet

Liabilities / Assets19th percentile

Assets

$16,761,293

Up $4,385,337 (+35%) from 2023

Liabilities

Down

Down $1 (-100%) from 2023

Net Assets

$16,761,293

Up $4,385,337 (+35%) from 2023

Operations

Liabilities / Revenue18th percentile Net Margin79th percentile

Revenue

$688,367

Up $365,512 (+113%) from 2023

Expenses

$452,047

Up $194,840 (+76%) from 2023

Net Income

$236,320

Up $170,672 (+260%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth90th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

Highlighted filing

2024

Assets$16,761,293

Liabilities$0

Net Assets$16,761,293

Open 2024 Filing

Operations Trend

Revenue Growth91st percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

Highlighted filing

2024

Revenue$688,367

Expenses$452,047

Net Income$236,320

Open 2024 Filing

Filings

Most recent year

2024 • Form 990PFDetailed filing. Detailed filing data is available for this year.

Open filing

Assets: $16,761,293
Liabilities: $0
Net assets: $16,761,293
Revenue: $688,367
Expenses: $452,047
Net income: $236,320

	Balance Sheet			Operations
Year	Assets	Liabilities	Net Assets	Revenue	Expenses	Net Income
2024Detailed filing. Detailed filing data is available for this year.	$16.8	$0.00	$16.8	$0.69	$0.45	$0.24
2023Detailed filing. Detailed filing data is available for this year.	$12.4	$0.00	$12.4	$0.32	$0.26	$0.07
2022Detailed filing. Detailed filing data is available for this year.	$8.00	$0.00	$8.00	$0.00	$0.00	$0.00

Latest Filing Detail

Jump To

Filing Snapshot

Filing Period: Jan 1, 2024 to Dec 31, 2024
Signed: Nov 17, 2025
Return Version: 2024v5.2

Compensation and Service Providers

Top Officer PayScore unavailable

Employees

Name	Title	Full / Part Time	Base	Other	Total
DONNA KRAMER	Treasurer	PT	$93,333	-	$93,333
MARK FEINBERG	President	-	$0	-	-
NANCY FEINBERG	Secretary	-	$0	-	-

Filing and Contact Details

Filer

Filer Name: Mark Allen Feinberg Charitable
EIN: 38-4243971
Phone: 6316589198
Address: 274 OLD STONE HWY, EAST HAMPTON, NY 11937

Signing Officer

Name: Mark Feinberg
Title: Feinberg
Phone: 6316589198
Signed: 2025-11-17
Discuss with paid preparer: Yes

Preparer

Firm: Gary M Beckmann CPA Pc
Address: 33 MONTAUK HWY PO BOX 2029, QUOGUE, NY 11959
Preparer: Gary M Beckmann CPA
Phone: 6319962528

Raw XML Appendix358 raw XML fields

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	8500
AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt	0	ACCOUNTING FEES
AccountingFeesSchedule/AccountingFeesDetail/DisbursementsCharitablePrpsAmt	0	0
AccountingFeesSchedule/AccountingFeesDetail/NetInvestmentIncomeAmt	0	8500
InvestmentsOtherSchedule2/InvestmentsOtherGrp/BookValueAmt	0	5582624
InvestmentsOtherSchedule2/InvestmentsOtherGrp/CategoryOrItemTxt	0	DEUTSCHE BANK - 3023
InvestmentsOtherSchedule2/InvestmentsOtherGrp/EOYFMVAmt	0	5582624
InvestmentsOtherSchedule2/InvestmentsOtherGrp/ListedAtCostOrFMVCd	0	AT COST
IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionAmt	0	687424
IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionCd	0	14
IRS990PF/AnalysisIncomeProducingActyGrp/GainSalesAstOthThanInvntryGrp/ExclusionAmt	0	943
IRS990PF/AnalysisIncomeProducingActyGrp/GainSalesAstOthThanInvntryGrp/ExclusionCd	0	18
IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt	0	688367
IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/RelatedOrExemptFunctionIncmAmt	0	0
IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/UnrelatedBusinessTaxblIncmAmt	0	0
IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt	0	688367
IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesChrtblPrpsAmt	0	0
IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesNetInvstIncmAmt	0	8500
IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesRevAndExpnssAmt	0	8500
IRS990PF/AnalysisOfRevenueAndExpenses/CapGainNetIncmNetInvstIncmAmt	0	943
IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstDsbrsChrtblAmt	0	93333
IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstNetInvstIncmAmt	0	0
IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstRevAndExpnssAmt	0	93333
IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt	0	281500
IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt	0	281500
IRS990PF/AnalysisOfRevenueAndExpenses/DividendsNetInvstIncmAmt	0	687424
IRS990PF/AnalysisOfRevenueAndExpenses/DividendsRevAndExpnssAmt	0	687424
IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt	0	236320
IRS990PF/AnalysisOfRevenueAndExpenses/GrossSalesPriceAmt	0	10143369
IRS990PF/AnalysisOfRevenueAndExpenses/NetGainSaleAstRevAndExpnssAmt	0	943
IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt	0	620407
IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesDsbrsChrtblAmt	0	936
IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesNetInvstIncmAmt	0	59460
IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt	0	60396
IRS990PF/AnalysisOfRevenueAndExpenses/ScheduleBNotRequiredInd	0	X
IRS990PF/AnalysisOfRevenueAndExpenses/TaxesDsbrsChrtblAmt	0	0
IRS990PF/AnalysisOfRevenueAndExpenses/TaxesNetInvstIncmAmt	0	0
IRS990PF/AnalysisOfRevenueAndExpenses/TaxesRevAndExpnssAmt	0	8315
IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt	0	375772
IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt	0	67960
IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt	0	452047
IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt	0	688367
IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt	0	688367
IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt	0	94272
IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt	0	67960
IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt	0	170547
IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingDsbrsChrtblAmt	0	3
IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingNetInvstIncmAmt	0	0
IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingRevAndExpnssAmt	0	3
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt	0	3662912
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt	1	1199894
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt	2	5279620
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt	0	837
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt	1	106
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt	2	0
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt	0	837
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt	1	106
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt	2	0
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt	0	3663749
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt	1	1200000
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt	2	5279620
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/HowAcquiredCd	0	P
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/HowAcquiredCd	1	P
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/HowAcquiredCd	2	P
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc	0	DEUTSCHE BANK - 3032
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc	1	DEUTSCHE BANK - 3032
IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc	2	DEUTSCHE BANK - 3032
IRS990PF/CapGainsLossTxInvstIncmDetail/CapitalGainNetIncomeAmt	0	943
IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt	0	236320
IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherDecreasesAmt	0	0
IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt	0	4149017
IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt	0	16761293
IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt	0	12375956
IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt	0	16761293
IRS990PF/DistributableAmountGrp/DeductionFromDistributableAmt	0	0
IRS990PF/DistributableAmountGrp/DistributableAsAdjustedAmt	0	785077
IRS990PF/DistributableAmountGrp/DistributableBeforeAdjAmt	0	785077
IRS990PF/DistributableAmountGrp/DistributableBeforeDedAmt	0	785077
IRS990PF/DistributableAmountGrp/MinimumInvestmentReturnAmt	0	793701
IRS990PF/DistributableAmountGrp/RecoveriesQualfiedDistriAmt	0	0
IRS990PF/DistributableAmountGrp/TaxBasedOnInvestmentIncomeAmt	0	8624
IRS990PF/DistributableAmountGrp/TotalTaxAmt	0	8624
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/AppliedToESTaxAmt	0	2308
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/BackupWithholdingWithheldAmt	0	0
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EsPenaltyAmt	0	108
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt	0	4040
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExemptFrgnOrgTaxWthldAtSrceAmt	0	0
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExtsnRequestIncomeTaxPaidAmt	0	7000
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt	0	8624
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/OverpaymentAmt	0	2308
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/RefundAmt	0	0
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtitleATaxAmt	0	0
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt	0	8624
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt	0	8624
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxUnderSection511Amt	0	0
IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt	0	11040
IRS990PF/FMVAssetsEOYAmt	0	16761293
IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalBOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalEOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockBOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockEOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/CashEOYAmt	0	7200
IRS990PF/Form990PFBalanceSheetsGrp/CashEOYFMVAmt	0	7200
IRS990PF/Form990PFBalanceSheetsGrp/OrgDoesNotFollowFASB117Ind	0	X
IRS990PF/Form990PFBalanceSheetsGrp/OtherInvestmentsBOYAmt	0	3282845
IRS990PF/Form990PFBalanceSheetsGrp/OtherInvestmentsEOYAmt	0	5582624
IRS990PF/Form990PFBalanceSheetsGrp/OtherInvestmentsEOYFMVAmt	0	5582624
IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningBOYAmt	0	12375956
IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningEOYAmt	0	16761293
IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt	0	9093111
IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt	0	11171469
IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt	0	11171469
IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt	0	12375956
IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt	0	16761293
IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt	0	16761293
IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesBOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt	0	0
IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt	0	12375956
IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt	0	16761293
IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt	0	12375956
IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt	0	16761293
IRS990PF/MethodOfAccountingCashInd	0	X
IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt	0	0
IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt	0	16115750
IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt	0	10073273
IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt	0	6042477
IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt	0	241736
IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt	0	0
IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt	0	793701
IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt	0	15874014
IRS990PF/MinimumInvestmentReturnGrp/ReductionClaimedAmt	0	0
IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt	0	16115750
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/AverageHrsPerWkDevotedToPosRt	2	30.00
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt	0	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt	1	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt	2	93333
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt	0	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt	1	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt	2	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt	0	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt	1	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt	2	0
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm	0	MARK FEINBERG
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm	1	NANCY FEINBERG
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm	2	DONNA KRAMER
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt	0	PRESIDENT
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt	1	SECRETARY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt	2	TREASURER
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt	0	274 OLD STONE HWY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt	1	131 PRINCE STREET
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt	2	274 OLD STONE HWY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	0	EAST HAMPTON
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	1	NEW YORK
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm	2	EAST HAMPTON
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	0	NY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	1	NY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd	2	NY
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	0	11937
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	1	10012
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd	2	11937
IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OtherEmployeePaidOver50kCnt	0	0
IRS990PF/Organization501c3ExemptPFInd	0	X
IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt	0	375772
IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt	0	0
IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt	0	375772
IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd	0	0
IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd	0	0
IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd	0	0
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	0
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	MARK FEINBERG
IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd	0	0
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt	0	274 OLD STONE HWY
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm	0	EAST HAMPTON
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd	0	NY
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd	0	11937
IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd	0	0
IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd	0	0
IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd	0	0
IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd	0	NY
IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd	0	0
IRS990PF/StatementsRegardingActyGrp/PhoneNum	0	6316589198
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	191500
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	1	12500
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	2	25000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	3	10000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	4	40000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	5	2500
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	0	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	1	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	2	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	3	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	4	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	5	GENERAL SUPPORT PURPOSES
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	0	GROUP FOR THE EAST END
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	1	HEART OF SPRINGS AKA THE TRIANGLE CORPORATION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	2	SPRINGS FOOD PANTRY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	3	FIGHTING CHANCE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	4	THE SAFINA CENTER
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	5	SPRINGS HISTORICAL SOCIETY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	0	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	1	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	2	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	3	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	4	PC
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	5	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/RecipientUSAddress/AddressLine1Txt	0	54895 MAIN ROAD
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	1	5 OLD STONE HWY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	2	5 OLD STONE HWY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	3	34 BAY ST STE 201
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	4	80 NORTH COUNTRY ROAD
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	5	PO BOX 3236
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	0	SOUTHOLD
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	1	EAST HAMPTON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	2	EAST HAMPTON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	3	SAG HARBOR
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	4	SETAUKET
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	5	EAST HAMPTON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	0	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	1	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	2	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	3	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	4	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	5	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	0	11971
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	1	11937
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	2	11937
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	3	11963
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	4	11733
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	5	11937
IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd	0	X
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt	0	0
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt	0	281500
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	138491
IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt	0	237281
IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt	0	0
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt	0	785077
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt	0	0
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt	0	375772
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable1Amt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable2Amt	0	0
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt	0	0
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt	0	646586
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt	0	237281
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	0	INVESTMENT ADVISORY FEES
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	1	OFFICE
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	2	BANK CHARGES
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	1	936
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	2	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	0	59414
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	2	46
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	0	59414
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	1	936
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	2	46
OtherIncreasesSchedule/OtherIncreasesDetail/Amt	0	4000000
OtherIncreasesSchedule/OtherIncreasesDetail/Amt	1	36697
OtherIncreasesSchedule/OtherIncreasesDetail/Amt	2	112320
OtherIncreasesSchedule/OtherIncreasesDetail/Desc	0	TRANSFER OF FUNDS FROM RELATED ACCOUNT
OtherIncreasesSchedule/OtherIncreasesDetail/Desc	1	ACCRUED INCOME
OtherIncreasesSchedule/OtherIncreasesDetail/Desc	2	UNREALIZED GAIN ON MARKETABLE SECURITIES
TaxesSchedule/TaxesDetail/Amt	0	8315
TaxesSchedule/TaxesDetail/CategoryTxt	0	FEDERAL EXCISE TAX
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	MARK FEINBERG
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt	0	FEINBERG
ReturnHeader/BusinessOfficerGrp/PhoneNum	0	6316589198
ReturnHeader/BusinessOfficerGrp/SignatureDt	0	2025-11-17
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt	0	MARK ALLEN FEINBERG CHARITABLE
ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt	0	FOUNDATION INC
ReturnHeader/Filer/BusinessNameControlTxt	0	MARK
ReturnHeader/Filer/EIN	0	384243971
ReturnHeader/Filer/PhoneNum	0	6316589198
ReturnHeader/Filer/USAddress/AddressLine1Txt	0	274 OLD STONE HWY
ReturnHeader/Filer/USAddress/CityNm	0	EAST HAMPTON
ReturnHeader/Filer/USAddress/StateAbbreviationCd	0	NY
ReturnHeader/Filer/USAddress/ZIPCd	0	11937
ReturnHeader/IRSResponsiblePrtyInfoCurrInd	0	0
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN	0	270925647
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt	0	GARY M BECKMANN CPA PC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt	0	33 MONTAUK HWY PO BOX 2029
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm	0	QUOGUE
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd	0	NY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd	0	11959
ReturnHeader/PreparerPersonGrp/PhoneNum	0	6319962528
ReturnHeader/PreparerPersonGrp/PreparationDt	0	2025-11-17
ReturnHeader/PreparerPersonGrp/PreparerPersonNm	0	GARY M BECKMANN CPA
ReturnHeader/ReturnTs	0	2025-11-17T10:34:40-06:00
ReturnHeader/ReturnTypeCd	0	990PF
ReturnHeader/TaxPeriodBeginDt	0	2024-01-01
ReturnHeader/TaxPeriodEndDt	0	2024-12-31
ReturnHeader/TaxYr	0	2024

Document Assets

No mirrored PDF or thumbnail assets are attached yet.