Michael Mason Foundation

Private foundation · Grantmaker Santa Monica, CA EIN: 20-2677103

Michael Mason Foundation is a private foundation focused on Education, based in Santa Monica, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $290K in total assets. In 2025, it awarded 6 grants totaling $14K. Net investment income was $40K.

Michael Mason Foundation at a glance

In short: Michael Mason Foundation gave $14K across 6 grants in 2025 (avg $2K), mostly in California. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$13,500
+3.8% vs 2024
Grants made (2025)
6
+0.0% vs 2024
Average grant
$2,250
+3.8% vs 2024
Median grant
$2,250
Total assets
$290,352
+8.3% vs 2024
Primary geography
California (85% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who Michael Mason Foundation funds

How this funder distributes its grants

Top Recipients

Top 6 recipients in 2025

A Window Between Worlds: $3KA Window Between Worlds$3KSOS Mentor: $3KSOS Mentor$3KFriends of the Israel Defense Force: $3KFriends of the Israel DefenseForce$3KScience Fiction Outreach Project: $2KScience Fiction OutreachProject$2KCamp Conrad Chinnock: $2KCamp Conrad Chinnock$2KLos Angeles Science Fantasy Society: $2KLos Angeles Science FantasySociety$2K

The largest 2025 recipient was A Window Between Worlds ($3K). Together the top 6 received $14K.

Grant Size Distribution

28 grants across all recorded years

28<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 28 grants of 28 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

6states

Share of 2025 grant dollars across all 6 itemized grants.

Cities

VeniceChicagoVan NuysAnaheimGranada HillsLos AngelesSeattleCalabasasStanfordBrooklynEugeneMontebelloOrangePahrumpSan Jose

How Michael Mason Foundation gives

  • Giving held roughly steady from 2022 to 2025 (−4%). Method
  • In 2025 it paid out 94% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

From the foundation's IRS Form 990-PF filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$5K$10K$15K5 grants2019 3 grants2020 3 grants2021 8 grants2022 5 grants2023 6 grants2024 6 grants2025

From 2019 to 2025, annual grant giving ranged from $9K (2021) to $14K (2022). In 2025 it made 6 grants totaling $14K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
A Window Between Worlds Venice, CADomestic Violence$3,000
SOS Mentor Calabasas, CAMotivate Youth to Make Healthy Eating Choices$2,500
Friends of the Israel Defense Force Los Angeles, CASupport Soldiers of IDF$2,500
Science Fiction Outreach Project Seattle, WAPromote Reading of Science Fiction$2,000
Camp Conrad Chinnock Anaheim, CATo Promote Diabetes Educational Services$2,000
Los Angeles Science Fantasy Society Granada Hills, CATo Promote Reading$1,500
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$290,352$42,806$19,583$13,5006$16,539$39,762$17,634
2024$268,081$40,987$18,302$13,0006$15,650$38,335$15,957
2023$246,000$23,410$14,915$10,0005$12,456$20,951$16,078
2022$243,960$21,184$18,509$14,0008$16,253$18,928$13,942
2021$249,426$22,374$13,700$9,0003$11,348$20,022$15,255
2020$226,187$11,928$14,273$10,5003—$10,040$12,035
2019$236,779$14,764$16,071$12,0005—$12,727$12,151

Under IRS private-foundation payout rules, Michael Mason Foundation reported a distributable amount of $18K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Michael Mason Foundation is led by Jennifer Waltzer, Chair & President on every filing since 2019; none of the 5 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Jennifer Waltzer

    Chair & President

    On filings since 2019

    No compensation reported

  • Christian McGuire

    Director

    On filings since 2019

    No compensation reported

  • Connie Seidman

    Director

    On filings since 2019

    No compensation reported

  • Sherri Benoun

    Director

    On filings since 2021

    No compensation reported

  • Jean Mason

    Scrtry & Treasurer

    On filings since 2019

    No compensation reported

Former officers (1)
  • Former: Tadao Tomomatsu (2019–2020) — Director

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Michael Mason Foundation

How much does Michael Mason Foundation give each year?

Michael Mason Foundation gave $14K across 6 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $13K across 6 grants.

What is Michael Mason Foundation's typical grant size?

Michael Mason Foundation's median grant in 2025 was $2,250, and its average grant was $2,250, across 6 grants on its 2025 IRS Form 990-PF.

Where does Michael Mason Foundation give grants?

Michael Mason Foundation gives mostly in California: 85% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Washington (15%).

Does Michael Mason Foundation give general operating support?

Not in 2025: none of the 6 grants with a stated purpose on Michael Mason Foundation's 2025 IRS Form 990-PF were described as general or operating support.

Who are Michael Mason Foundation's largest grantees?

Michael Mason Foundation's largest 2025 grantees include A Window Between Worlds ($3,000), SOS Mentor ($2,500) and Friends of the Israel Defense Force ($2,500), according to its 2025 IRS Form 990-PF. Together they received 59% of its itemized 2025 grant dollars.

How large is Michael Mason Foundation?

Michael Mason Foundation reported $290K in total assets on its 2025 IRS Form 990-PF. It paid out $17K in qualifying distributions that year, against a required minimum of $18K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What is Michael Mason Foundation?

Michael Mason Foundation is a private foundation focused on Education, based in Santa Monica, CA. It holds $290K in total assets as of 2025.

What is Michael Mason Foundation's EIN?

Michael Mason Foundation's EIN (Employer Identification Number) is 20-2677103. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings.

Data update history

(3)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS July 9, 2020)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS May 19, 2026)
  3. IRS filings on file for fiscal years 2020–2024

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Michael Mason Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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