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· Private foundation

Munger Charitable Trust Number Four

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$1.4M
Granted FY2025still arriving
5
Grants FY2025still arriving
3
States reached
$682k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$731kReligion$611kHealth$100kArts & Culture$96kPhilanthropy$30kEnvironment$4k
02FY2025 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $7k
  • $10k–50k1 grant · $12k
  • $50k–250k1 grant · $100k
  • $250k+2 grants · $1.3M
$100,000
Median grant
3
States reached
$157M
Total assets

Anchored by a single position: about 95% of reported assets are held in Berkshire Hath Cl A.

Largest grants
RecipientAmount
AMERICANS FOR OXFORD INC$682,491
AMERICAN FRIENDS OF ST JAMES'S PICCADILLY$610,754
CEDARS SINAI$100,000
AMERICANS FOR OXFORD INC$11,590
AMERICANS FOR OXFORD INC$6,827
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 60% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%AMERICAN FRIENDS OF ST JAMES'S PICCADILLY: $611k → 8%THE GETTY TRUST: $20k → 14%MUSIC ACADEMY OF THE WEST: $1k → 14%PACIFIC RIM CONSERVATION: $4k → 9%AMERICANS FOR OXFORD INC: $682k → 17%George Washington University: $20k → 14%THE J PAUL GETTY TRUST: $20k → 14%AMERICANS FOR OXFORD INC: $12k → 17%THE GETTY TRUST: $10k → 14%AMERICANS FOR OXFORD: $10k → 17%CEDARS SINAI: $100k → 14%AMERICANS FOR OXFORD INC: $7k → 17%SIR JOHN SOANE'S MUSEUM FOUNDATION: $26k → 17%WALLACE COLLECTION IN AMERICA: $20k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

50%of every dollar goes to organizations it has funded before.
$789k · 3 repeat orgs$782k to everyone else

3 repeat relationships: 1 still active in FY2025, 2 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

3
5

Total granted

$789k
$71k

Median revenue growth · since first grant

+21%
+23%

Still filing today

67%
100%

New vs renewed · share of each year

In FY2025, 50% of grant dollars renewed an existing relationship; $711k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
EducationArts & CulturePhilanthropyReligionHealthEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • AF
    AMERICANS FOR OXFORD INC
    2× · 2021–2025 · $711k · revenue +21%
  • TJ
    THE J PAUL GETTY TRUST
    3× · 2021–2024 · $50k · revenue +18%
  • SJ
    SIR JOHN SOANE'S MUSEUM FOUNDATION
    2× · 2018–2019 · $29k

Funded once

  • SJ
    SIR JOHN SOANE'S MUSEUM FOUNDATIONgraduated
    one grant, 2023 · $26k · revenue +136%
  • TW
    THE WALLACE COLLECTION IN AMERICA INC
    one grant, 2020 · $20k · revenue +23%
  • TG
    The George Washington Universitygraduated
    one grant, 2017 · $20k · revenue +30%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Calder Foundation
—
2
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
3
Trustees of the American School of Classical Studies at Athens

The broad mission of the ASCSA has remained constant over its distinguished history: teaching research archaeological exploration publication and dissemination of research. Founded in 1881 the ASCSA provides graduate students and scholars…

Arts & Culture
4
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
5
American Foundation for Courtauld Instit

To promote the study of art history and the preservation of works of art.

—
6
American Foundation of the Imperial War Museum Inc
Education
7
The Textile Museum

Founded in 1925 by textile collector and connoisseur, george hewitt myers, the museum is a non-profit institution dedicated to furthering the understanding of mankind's creative achievements in the textile arts.

Arts & Culture
8
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
9
The American Patrons of the Tate Gallery Foundation Inc

>to conduct activities which are exclusively charitable, literary, and educational within the meaning of section 501(c)(3) of the internal revenue code. >to sponsor art exhibitions and loans of art works throughout the united states which…

Arts & Culture
10
Asian Art Museum Foundation of San Francisco

The asian art museum celebrates, preserves, and promotes asian and asian american art and cultures for local and global audiences. we provide a dynamic forum for exchanging ideas, inviting collaboration, and fueling imagination to deepen…

Arts & Culture
11
American Academy of Arts & Sciences

Founded in 1780, the american academy of arts and sciences honors excellence and convenes leaders from every field of human endeavor to examine new ideas, address issues of importance to the nation and the world, and work together "to…

Social Science
12
Victoria and Albert Museum Americas Foundation

The v&a americas foundation is a u.s.-based 501(c)(3) nonprofit organization that supports the victoria and albert museum (v&a) in london. its mission is to promote arts, design, and cultural heritage by facilitating philanthropic support…

International
How this is measured
The grantee most central to the portfolio’s shape is Americans for Oxford Inc; the most unlike its peers is Cedars-Sinai Medical Center. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

9 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 9 of the 10 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

1
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
9/9
Grantees still filing
5/9
Grew since first funded

Where the money sits, by cause and then by grantee

AMERICANS FOR OXFORD INC: $710,908 · EducationAMERICANS FOR OXFORD INC+2 more: $40,000 · EducationAMERICAN FRIENDS OF ST JAMES'S PICCADILLY INC C/O HURWIT & ASSOCIATES: $610,754 · ReligionAMERICAN FRIENDS OF ST JAMES'S PICCADILLY IN…CEDARS-SINAI MEDICAL CENTER: $100,000 · HealthTHE J PAUL GETTY TRUST: $50,000 · PhilanthropySIR JOHN SOANE'S MUSEUM FOUNDATION: $28,500 · OtherSIR JOHN SOANE'S MUSEUM FOUNDATION: $26,000 · Arts & CultureMUSIC ACADEMY OF THE WEST: $1,000 · Arts & CulturePACIFIC RIM CONSERVATION: $4,000 · Environment
Education$750,908Religion$610,754Health$100,000Philanthropy$50,000Other$28,500Arts & Culture$27,000Environment$4,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetAMERICANS FOR OXFORD INC: $710,908 over 2y, 0.0% of budgetAMERICAN FRIENDS OF ST JAMES'S PICCADILLY INC C/O HURWIT & ASSOCIATES: $610,754 over 1y, 54% of budgetCEDARS-SINAI MEDICAL CENTER: $100,000 over 1y, 0.0% of budgetTHE J PAUL GETTY TRUST: $50,000 over 3y, 0.0% of budgetSIR JOHN SOANE'S MUSEUM FOUNDATION: $26,000 over 1y, 4.0% of budgetTHE WALLACE COLLECTION IN AMERICA INC: $20,000 over 1y, 7.1% of budgetThe George Washington University: $20,000 over 1y, 0.0% of budgetPACIFIC RIM CONSERVATION: $4,000 over 1y, 0.3% of budgetMUSIC ACADEMY OF THE WEST: $1,000 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

How much its grantees rely on government

Each dot is one organization Munger Charitable Trust Number Four funds: left to right is the share of its income from government, bottom to top the share from Munger Charitable Trust Number Four. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%4%15%34%60%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    2report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–5%
    typical government reliance, FY20–25
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 10 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

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