Martin and Ami Weiss Foundation

Private foundation · Grantmaker Encino, CA EIN: 95-4278230

Martin and Ami Weiss Foundation is a private foundation, based in Encino, CA. IRS filing data is available from 2021 through 2026. As of 2026, the organization holds $254K in total assets. In 2026, it awarded 2 grants totaling $36K. Net investment income was $10K.

Martin and Ami Weiss Foundation at a glance

In short: Martin and Ami Weiss Foundation gave $36K across 2 grants in 2026 (avg $18K), mostly in California. Source: 2026 IRS Form 990-PF.

Annual giving (2026)
$36,000
+44.0% vs 2025
Grants made (2026)
2
-33.3% vs 2025
Average grant
$18,000
+116.0% vs 2025
Median grant
$18,000
Total assets
$253,693
-9.5% vs 2025
Primary geography
California (100% of itemized 2026 grant dollars)
Latest 990 filing
Form 990-PF, 2026 View filing

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

Who Martin and Ami Weiss Foundation funds

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2026

San Diego Zoo Wildlife Alliance: $20KSan Diego Zoo WildlifeAlliance$20KAnimal Tracks: $16KAnimal Tracks$16K

The largest 2026 recipient was San Diego Zoo Wildlife Alliance ($20K). Together the top 2 received $36K.

Grant Size Distribution

12 grants across all recorded years

12<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 12 grants of 12 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2026 grant dollars across all 2 itemized grants.

States

Cities

San DiegoAgua DulceLos Angeles

How Martin and Ami Weiss Foundation gives

  • Giving fell 20% from 2023 to 2026. 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$20K$40K$60K0 grants2021 1 grant2022 3 grants2023 3 grants2024 3 grants2025 2 grants2026

From 2022 to 2026, annual grant giving ranged from $25K (2022) to $45K (2024). In 2026 it made 2 grants totaling $36K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
San Diego Zoo Wildlife Alliance San Diego, CASupport Public Education Programs$20,000
Animal Tracks Agua Dulce, CASupport public education and protect animals and their habitats$16,000
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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 Income
2026$253,693$10,304$36,916$36,0002$36,000$10,304
2025$280,305$12,647$26,012$25,0003$25,000$11,892
2024$293,670$19,382$45,900$45,0003$45,000$18,482
2023$320,188$148$45,045$45,0003$45,000—
2022$365,085$40,074$25,575$25,0001$25,000$3
2021$350,586$350,250$290————

Leadership & Key People

Officers and directors from IRS filings

Martin and Ami Weiss Foundation is led by Henry Hung, CEO since 2022 (on filings since 2021); none of the 3 officers listed in 2026 report compensation.

Officers on the 2026 filing

  • Henry Hung

    CEO

    Vice President → CEO, 2022

    On filings since 2021

    No compensation reported

  • Gerald Jerry Block

    CFO

    President → CFO, 2022

    On filings since 2021

    1 hr/week

    No compensation reported

  • Richard Rosman

    Secretary

    On filings since 2021

    No compensation reported

Data from IRS Form 990 filings, 2021–2026. "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 Martin and Ami Weiss Foundation

How much does Martin and Ami Weiss Foundation give each year?

Martin and Ami Weiss Foundation gave $36K across 2 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $25K across 3 grants.

How large is Martin and Ami Weiss Foundation?

Martin and Ami Weiss Foundation reported $254K in total assets on its 2026 IRS Form 990-PF. Its revenue that year was $10K.

Where does Martin and Ami Weiss Foundation operate?

Martin and Ami Weiss Foundation has awarded grants in California.

What is Martin and Ami Weiss Foundation's EIN?

Martin and Ami Weiss Foundation's EIN (Employer Identification Number) is 95-4278230. IRS Form 990 filing data is available on this page for 2021–2026.

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

Data update history

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2026 (received by the IRS July 30, 2026)
  2. IRS filings on file for fiscal years 2021–2025

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

Figures come from Martin and Ami Weiss 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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