Maffei Foundation

EIN 45-4040790 • Englewood, CO

12300 Liberty BlvdEnglewood, CO 80112

Siviq Scores

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

0.03x

Higher debt load relative to assets than 44% of similar nonprofits.

$5M-$10M nonprofits • Source year 2024

0.08x

Higher debt load relative to revenue than 48% of similar nonprofits.

$5M-$10M nonprofits • Source year 2024

68%

Higher net margin than 92% of similar nonprofits.

$5M-$10M nonprofits • Source year 2024

Higher top officer pay than 64% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

$5M-$10M nonprofits • Source year 2024

-6.4%

Faster asset growth than 14% of similar nonprofits.

$5M-$10M nonprofits • Annualized from 2023 to 2024

179%

Faster revenue growth than 94% of similar nonprofits.

$5M-$10M nonprofits • Annualized from 2023 to 2024

Balance Sheet

Liabilities / Assets44th percentile

Assets

Down

$7,652,458

Down $526,410 (-6.4%) from 2023

Liabilities

Down

$219,961

Down $2,284,849 (-91%) from 2023

Net Assets

$7,432,497

No earlier filing loaded for comparison.

Operations

Liabilities / Revenue48th percentile Net Margin92nd percentile

Revenue

$2,596,657

Up $1,665,286 (+179%) from 2023

Expenses

Down

$841,832

Down $4,926,171 (-85%) from 2023

Net Income

$1,754,825

Up $6,591,457 (+136%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth14th percentile

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

Highlighted filing

2024

Assets$7,652,458

Liabilities$219,961

Net Assets$7,432,497

Open 2024 Filing

Operations Trend

Revenue Growth94th percentile

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

Highlighted filing

2024

Revenue$2,596,657

Expenses$841,832

Net Income$1,754,825

Open 2024 Filing

Filings

Most recent year

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

Open filing

Assets: $7,652,458
Liabilities: $219,961
Net assets: $7,432,497
Revenue: $2,596,657
Expenses: $841,832
Net income: $1,754,825

	Balance Sheet			Operations
Year	Assets	Liabilities	Net Assets	Revenue	Expenses	Net Income
2024Detailed filing. Detailed filing data is available for this year.	$7.65	$0.22	$7.43	$2.60	$0.84	$1.75
2023Summary only. Only limited summary data is available for this year.	$8.18	$2.50		$0.93	$5.77	$4.84
2022Detailed filing. Detailed filing data is available for this year.	$8.46	$0.00	$8.46	$0.30	$4.95	$4.65
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$13.8	$0.00	$13.8	$18.0	$5.99	$12.0
2020XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$13.1	$0.00	$13.1	$0.18	$6.50	$6.32
2019Detailed filing. Detailed filing data is available for this year.	$9.61	$0.00	$9.61	$2.31	$4.28	$6.60
2018XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$16.0	$0.00	$16.0	$9.28	$1.82	$7.45
2017XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$15.2	$0.00	$15.2	$27.1	$1.56	$25.5
2016XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$9.00	$0.00	$9.00	$25.6	$1.30	$24.3
2015XML pending. An XML filing is linked for this year, but detailed extraction is still pending.	$2.83	$0.00	$2.83	$13.4	$0.85	$12.5
2014Detailed filing. Detailed filing data is available for this year.	$2.16	$0.00	$2.16	$5.06	$1.29	$3.77
2013Detailed filing. Detailed filing data is available for this year.	$1.21	$0.00	$1.21	$1.37	$1.50	$0.12
2012Detailed filing. Detailed filing data is available for this year.	$1.46	$0.00	$1.46		$1.48
2011Summary only. Only limited summary data is available for this year.	$0.29	$0.00		$3.88	$0.00	$3.88

Latest Filing Detail

Jump To

Filing Snapshot

Filing Period: Jan 1, 2024 to Dec 31, 2024
Signed: Jul 15, 2025
Return Version: 2024v5.2

Compensation and Service Providers

Top Officer Pay64th percentile

Employees

Name	Title	Full / Part Time	Base	Other	Total
GREGORY B MAFFEI	Director, President, Treas	PT	$0	-	-
JEFFREY C KIRWOOD	Director, V. President, Se	PT	$0	-	-

Filing and Contact Details

Filer

Filer Name: Maffei Foundation
EIN: 45-4040790
Phone: 3037409400
Address: 12300 LIBERTY BLVD, ENGLEWOOD, CO 80112

Signing Officer

Name: Gregory Maffei
Title: Director
Phone: 3037409400
Signed: 2025-07-15
Discuss with paid preparer: Yes

Preparer

Firm: Plante & Moran Pllc
Address: 8181 E TUFTS AVE SUITE 600, DENVER, CO 80237
Preparer: Ryan Margheim
Phone: 3037409400

Raw XML Appendix394 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.

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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	JEFFREY C KIRWOOD
IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd	0	0
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt	0	PO BOX 9389
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm	0	AVON
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd	0	CO
IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd	0	81620
IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd	0	0
IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd	0	0
IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd	0	0
IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd	0	0
IRS990PF/StatementsRegardingActyGrp/PhoneNum	0	9706884188
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/ContributingManagerNm	0	GREGORY B MAFFEI
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	0	2054
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	1	500000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	2	750
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	3	50000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	4	83333
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	5	5200
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	6	540
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt	7	5000
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	0	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	1	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	2	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	3	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	4	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	5	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	6	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt	7	CHARITABLE CONTRIBUTION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	0	CHILDREN HOSPITAL CO FOUNDATION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	1	DARTMOUTH COLLEGE FUND
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	2	EVANS SCHOLARS FOUNDATION
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	3	FUNHOUSE COMMONS
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	4	HIGH LINE CANAL CONSERVANCY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	5	MD ANDERSON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	6	SSP INVEST IN KIDS
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt	7	STORYVILLE CENTER
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	0	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	1	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	2	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	3	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	4	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	5	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	6	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt	7	501(C)(3)
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	0	13123 E 16TH AVE BOX 045
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	1	6066 DEVELOPMENT OFFICE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	2	2501 PATRIOT BLVD
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	3	30 PEA PATCH LANE
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	4	4010 EAST ORCHARD RD
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	5	PO BOX 2558
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	6	1775 SHERMAN STREET SUITE 1445
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt	7	75 BROAD ST STE 2601
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	0	AURORA
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	1	HANOVER
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	2	GLENVIEW
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	3	EASTSOUND
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	4	CENTENNIAL
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	5	HOUSTON
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	6	DENVER
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm	7	NEW YORK
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	0	CO
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	1	NH
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	2	IL
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	3	WA
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	4	CO
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	5	TX
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	6	CO
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd	7	NY
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	0	80045
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	1	03755
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	2	60026
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	3	98245
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	4	80121
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	5	77252
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	6	80203
IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd	7	10004
IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd	0	X
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt	0	0
IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt	0	646877
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	654103
IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt	0	0
IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt	0	0
IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt	0	2800045
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt	0	2145942
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt	0	2553826
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr2Amt	0	507206
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt	0	999911
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt	0	2253768
IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr5Amt	0	132367
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt	0	2145942
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt	0	0
IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt	0	4301136
IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt	0	2553826
IRS990PF/UndistributedIncomeGrp/ExcessFromYear2Amt	0	507206
IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt	0	999911
IRS990PF/UndistributedIncomeGrp/ExcessFromYear4Amt	0	240193
IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt	0	0
IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt	0	0
IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt	0	654103
IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable1Amt	0	0
IRS990PF/UndistributedIncomeGrp/Taxable2Amt	0	0
IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt	0	4301136
IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt	0	6447078
IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt	0	0
IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt	0	0
IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/AdjustedNetIncomeAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	0	OTHER PORTFOLIO DEDUCTIONS
OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc	1	ORDINARY LOSS FROM K-1
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	0	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt	1	0
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	0	1
OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt	1	173
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	0	1
OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt	1	173
OtherIncomeSchedule2/OtherIncomeDetail/Desc	0	1099 ORDINARY INCOME
OtherIncomeSchedule2/OtherIncomeDetail/NetInvestmentIncomeAmt	0	22
OtherIncomeSchedule2/OtherIncomeDetail/RevenueAndExpensesPerBooksAmt	0	22
OtherIncreasesSchedule/OtherIncreasesDetail/Amt	0	3614
OtherIncreasesSchedule/OtherIncreasesDetail/Desc	0	MARKET TO COST ADJUSTMENT
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/BOYBookValueAmt	0	2504810
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/Desc	0	MORGAN STANLEY LIQUIDITY ACCESS LINE
OtherLiabilitiesSchedule/OtherLiabilitiesDetail/EOYBookValueAmt	0	219961
TaxesSchedule/TaxesDetail/AdjustedNetIncomeAmt	0	0
TaxesSchedule/TaxesDetail/Amt	0	20000
TaxesSchedule/TaxesDetail/CategoryTxt	0	FEDERAL INCOME 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	GREGORY MAFFEI
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt	0	DIRECTOR
ReturnHeader/BusinessOfficerGrp/PhoneNum	0	3037409400
ReturnHeader/BusinessOfficerGrp/SignatureDt	0	2025-07-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt	0	MAFFEI FOUNDATION
ReturnHeader/Filer/BusinessNameControlTxt	0	MAFF
ReturnHeader/Filer/EIN	0	454040790
ReturnHeader/Filer/PhoneNum	0	3037409400
ReturnHeader/Filer/USAddress/AddressLine1Txt	0	12300 LIBERTY BLVD
ReturnHeader/Filer/USAddress/CityNm	0	ENGLEWOOD
ReturnHeader/Filer/USAddress/StateAbbreviationCd	0	CO
ReturnHeader/Filer/USAddress/ZIPCd	0	80112
ReturnHeader/IRSResponsiblePrtyInfoCurrInd	0	0
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN	0	331498605
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt	0	PLANTE & MORAN PLLC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt	0	8181 E TUFTS AVE SUITE 600
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm	0	DENVER
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd	0	CO
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd	0	80237
ReturnHeader/PreparerPersonGrp/PhoneNum	0	3037409400
ReturnHeader/PreparerPersonGrp/PreparationDt	0	2025-07-15
ReturnHeader/PreparerPersonGrp/PreparerPersonNm	0	RYAN MARGHEIM
ReturnHeader/ReturnTs	0	2025-08-01T14:59:52-05:00
ReturnHeader/ReturnTypeCd	0	990PF
ReturnHeader/TaxPeriodBeginDt	0	2024-01-01
ReturnHeader/TaxPeriodEndDt	0	2024-12-31
ReturnHeader/TaxYr	0	2024