Michael Antonov Charitable Foundation
Michael Antonov Charitable Foundation is a private foundation, based in Woodbury, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $21.1M in total assets. In 2024, it awarded 6 grants totaling $2.4M. Net investment income was $1.4M.
Michael Antonov Charitable Foundation at a glance
In short: Michael Antonov Charitable Foundation gave $2.4M across 6 grants in 2024 (avg $393K), mostly in New York. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $2,357,500
- +24.5% vs 2023
- Grants made (2024)
- 6
- -40.0% vs 2023
- Average grant
- $392,917
- +107.4% vs 2023
- Median grant
- $225,000
- Total assets
- $21,063,950
- -5.0% vs 2023
- Primary geography
- New York (57% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Michael Antonov Charitable Foundation funds
How this funder distributes its grants
Top Recipients
Top 6 recipients in 2024
The largest 2024 recipient was Entropy Software Foundation ($1.4M). Together the top 6 received $2.4M.
Grant Size Distribution
35 grants across all recorded years
The most common grant size was in the $250–500K range: 12 grants of 35 (34%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 6 itemized grants.
Cities
How Michael Antonov Charitable Foundation gives
- Giving held roughly steady from 2021 to 2024 (+8%). Method
- In 2024 it paid out 180% of its IRS minimum distribution (the 5% rule). 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
From 2020 to 2024, annual grant giving ranged from $640K (2020) to $2.8M (2022). In 2024 it made 6 grants totaling $2.4M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Entropy Software Foundation Woodbury, NY | Donation | $1,350,000 |
| Foresite Institute San Francisco, CA | Donation | $307,500 |
| Marici San Francisco, CA | Donation | $250,000 |
| Buck Institute for Research Novato, CA | Donation | $200,000 |
| Illuminate the Arts San Francisco, CA | Donation | $200,000 |
| City of Smile USA Inc Burlington, MA | Donation | $50,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $21,063,950 | $1,278,396 | $2,396,968 | $2,357,500 | 6 | $2,361,142 | $1,361,701 | $1,315,239 |
| 2023 | $22,182,522 | $802,648 | $1,917,491 | $1,894,126 | 10 | $1,896,613 | $963,698 | $1,173,181 |
| 2022 | $23,297,365 | $828,835 | $2,886,662 | $2,779,500 | 8 | $2,793,986 | $900,789 | $1,295,295 |
| 2021 | $25,355,192 | $998,595 | $2,224,934 | $2,173,000 | 7 | $2,181,786 | $942,703 | $1,564,017 |
| 2020 | $26,581,531 | $682,709 | $795,317 | $640,000 | 4 | — | $1,332,988 | $1,354,388 |
Under IRS private-foundation payout rules, Michael Antonov Charitable Foundation reported a distributable amount of $1.3M for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Michael Antonov Charitable Foundation is led by Michael Antonov, President on every filing since 2020; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Michael Antonov
President
On filings since 2020
3 hrs/week
No compensation reported
Michael Margulis
Treasurer
On filings since 2020
1 hr/week
No compensation reported
Natalia Margulis
Vice President
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 Antonov Charitable Foundation
How much does Michael Antonov Charitable Foundation give each year?
Michael Antonov Charitable Foundation gave $2.4M across 6 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $1.9M across 10 grants.
What is Michael Antonov Charitable Foundation's typical grant size?
Michael Antonov Charitable Foundation's median grant in 2024 was $225,000, and its average grant was $392,917, across 6 grants on its 2024 IRS Form 990-PF.
Where does Michael Antonov Charitable Foundation give grants?
Michael Antonov Charitable Foundation gives mostly in New York: 57% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was California (41%). The most frequent recipient cities were San Francisco, CA (3 grants).
Does Michael Antonov Charitable Foundation give general operating support?
Not in 2024: none of the 6 grants with a stated purpose on Michael Antonov Charitable Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Donation" (6 grants).
Who are Michael Antonov Charitable Foundation's largest grantees?
Michael Antonov Charitable Foundation's largest 2024 grantees include Entropy Software Foundation ($1,350,000), Foresite Institute ($307,500) and Marici ($250,000), according to its 2024 IRS Form 990-PF. Together they received 81% of its itemized 2024 grant dollars.
How large is Michael Antonov Charitable Foundation?
Michael Antonov Charitable Foundation reported $21.1M in total assets on its 2024 IRS Form 990-PF. It paid out $2.4M in qualifying distributions that year, against a required minimum of $1.3M (roughly 5% of its investment assets).
What is Michael Antonov Charitable Foundation's EIN?
Michael Antonov Charitable Foundation's EIN (Employer Identification Number) is 47-1849235. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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