MJS Foundation Inc
MJS Foundation Inc is a private family foundation formed in 2011 and based in New York, NY. It focuses its support in the New York City area, aiming to reach communities in need and enhance the quality of education, social services, and health care.
MJS Foundation Inc at a glance
In short: MJS Foundation Inc gave $22.7M across 58 grants in 2025 (avg $391K), mostly in New York. 10% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $22,667,665
- -29.0% vs 2024
- Grants made (2025)
- 58
- -12.1% vs 2024
- Average grant
- $390,822
- -19.2% vs 2024
- Median grant
- $102,500
- Total assets
- $48,016,627
- -35.0% vs 2024
- New grantees (estimate)
- 10% first-time grantees (5 of 48, 2025)
- Primary geography
- New York (78% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to MJS Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests.
- Contact
Mailing address: 149 5Th Ave 5Th Fl, New York, NY 10010
Phone: (646) 968-1888
Website: https://mjsfoundation.org
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who MJS Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Robin Hood Foundation ($5.0M). Together the top 10 received $17.8M.
Grant Size Distribution
327 grants across all recorded years
The most common grant size was under $50K: 81 grants of 327 (25%).
Geographic Focus
Where this funder awards grants
The foundation says its support focuses on the New York City area and lists NYC Community and Long Island as philanthropic interests. In 2025, 78% of grant dollars went to recipients in New York, 16% to Massachusetts, and 5% to California; Florida and Washington, DC each accounted for less than 1% in the reported state breakdown.
Grant Distribution by State
Share of 2025 grant dollars across all 58 itemized grants.
States
Cities
Is MJS Foundation Inc open to new grantees?
10%
first-time grantees, 2025
In 2025, 5 of 48 grantees (10%) were first-time recipients. First grants averaged $273K; repeat grants $495K. How we count
Medians: $25K first-time, $150K repeat.
- 83% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−7%). Method
- In 2025 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $22.7M (2025) to $36.6M (2020). In 2025 it made 58 grants totaling $22.7M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Robin Hood Foundation New York, NY | General Operating Support for RHF'S Grantmaking Programs | $5,000,000 |
| Fidelity Investments Charitable Gift Fund Boston, MA | Gift to a donor-advised fund to help mjs administer smaller gifts to charities | $3,469,880 |
| Icahn School of Medicine at Mount Sinai New York, NY | Pledged gift to support the tisch cancer hospital and lung cancer center of excellence | $2,000,000 |
| Felicity House Inc New York, NY | Gift to support community space devoted to women with autism | $1,000,000 |
| Icahn School of Medicine at Mount Sinai New York, NY | Gift to support the dr. Martin feuer pulmonary educational fund | $1,000,000 |
| Park Avenue Synagogue New York, NY | Gift in Honor of Jim Simons Yahrzeit | $1,000,000 |
| The Center for Discovery Harris, NY | Pledged Gift to Support the Endowment Campaign | $1,000,000 |
| Stony Brook Foundation Stony Brook, NY | Gift to Support the MJS Challenge | $933,710 |
| University of California Berkeley Foundation Berkeley, CA | Gift to Support the Climatenginuity Hub Pilot Program | $700,000 |
| New York Public Library New York, NY | Gift to Support the Annual Fund | $500,000 |
Ready to take the next step with MJS Foundation Inc?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $48,016,627 | $1,013,725 | $21,796,155 | $22,667,665 | 58 | $25,378,526 | $1,215,569 | $392,025 |
| 2024 | $73,921,189 | $79,225,565 | $23,255,933 | $31,921,600 | 66 | $33,844,472 | $211,141 | $417,430 |
| 2023 | $29,457,691 | $18,808,905 | $26,802,946 | $29,370,698 | 72 | $31,161,147 | $112,970 | $331,133 |
| 2022 | $42,958,423 | $44,310,653 | $34,298,189 | $24,273,078 | 70 | $25,914,304 | — | $407,820 |
| 2021 | $23,800,314 | $31,094,027 | $32,622,681 | $23,351,778 | 61 | $24,310,137 | $19,065 | $255,330 |
| 2020 | $16,740,864 | $31,815,537 | $24,742,391 | $36,596,684 | 59 | — | — | $226,828 |
Under IRS private-foundation payout rules, MJS Foundation Inc reported a distributable amount of $392K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation states that it aims to reach communities in need and enhance education, social services, and health care. Its grants show support for, among other things, cancer and pulmonary care, a community space for women with autism, a public library’s annual fund, school operating support, and a climate hub pilot program.
Among its grantees, the Icahn School of Medicine at Mount Sinai describes its mission as advancing science, medicine, and health care delivery. The Center for Discovery says it provides educational, clinical, residential, social, and creative arts experiences for individuals with disabilities and medical frailties and their families.
Grantmaking
In 2025, the foundation reported 58 grants totaling $22,667,665. Grants ranged from $1,000 to $5,000,000, with a median of $102,500. The largest grant was $5,000,000 to Robin Hood Foundation for general operating support for its grantmaking programs. Other large grants included $3,469,880 to Fidelity Investments Charitable Gift Fund for a donor-advised fund to help administer smaller gifts to charities; $2,000,000 to the Icahn School of Medicine at Mount Sinai for the Tisch Cancer Hospital and Lung Cancer Center of Excellence; and $1,000,000 each to Felicity House, the Icahn School of Medicine at Mount Sinai, Park Avenue Synagogue, and The Center for Discovery.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Marilyn Simons as President and Board Chair; Joseph Cosmai as Treasurer and Secretary/Director; and Jeffrey Wacksman and Susan E Gibbons as Directors. The foundation’s website identifies James H. Simons, Ph.D. (1938–2024) as Chair Emeritus.
MJS Foundation Inc is led by Marilyn Simons, President & Board Chair since 2024 (on filings since 2020); none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Marilyn Simons
President & Board Chair
Co-President → President, 2021
President → President & Board Chair, 2024
On filings since 2020
40 hrs/week
No compensation reported
Susan E. Gibbons
Director
On filings since 2023
0.3 hrs/week
$1K (2024) → $0 (2025)
Jeffrey Wacksman
Director
On filings since 2020
0.3 hrs/week
No compensation reported
Joseph Cosmai
Treasurer, Secretary & Director
On filings since 2020
0.3 hrs/week
No compensation reported
Former officers (1)
- Former: James Simons (2020–2024) — Board Chair Emeritus
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $1K, to Susan E Gibbons (Director).
Frequently asked questions about MJS Foundation Inc
How much does MJS Foundation Inc give each year?
MJS Foundation Inc gave $22.7M across 58 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $31.9M across 66 grants.
What is MJS Foundation Inc's typical grant size?
MJS Foundation Inc's median grant in 2025 was $102,500, and its average grant was $390,822, across 58 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from MJS Foundation Inc that year got $273K on average.
Where does MJS Foundation Inc give grants?
MJS Foundation Inc gives mostly in New York: 78% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (16%) and California (5%). The most frequent recipient cities were New York, NY (33 grants), Stony Brook, NY (3 grants), Cold Spring Harbor, NY (3 grants) and Berkeley, CA (2 grants).
Does MJS Foundation Inc give general operating support?
Yes: 17% of MJS Foundation Inc's 2025 grants with a stated purpose (10 of 58) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Gift to Support the Mission of the Organization" (3 grants).
Who are MJS Foundation Inc's largest grantees?
MJS Foundation Inc's largest 2025 grantees include Robin Hood Foundation ($5,000,000), Fidelity Investments Charitable Gift Fund ($3,469,880) and Icahn School of Medicine at Mount Sinai ($3,000,000 across 2 grants), according to its 2025 IRS Form 990-PF. Together they received 51% of its itemized 2025 grant dollars.
How large is MJS Foundation Inc?
MJS Foundation Inc reported $48.0M in total assets on its 2025 IRS Form 990-PF. It paid out $25.4M in qualifying distributions that year, against a required minimum of $392K (roughly 5% of its investment assets).
What does MJS Foundation Inc fund?
The foundation states that it aims to reach communities in need and enhance education, social services, and health care. See mission & focus areas ↑
How do I apply for a grant from MJS Foundation Inc?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is MJS Foundation Inc's EIN?
MJS Foundation Inc's EIN (Employer Identification Number) is 45-3826353. IRS Form 990 filing data is available on this page for 2020–2025.
Does MJS Foundation Inc accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS July 28, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS October 6, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS June 30, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS July 11, 2024)
- Added Form 990-PF for fiscal year 2024 (received by the IRS July 2, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS June 26, 2026)
- IRS filings on file for fiscal years 2020–2023
Explore Open Grants
Browse active grant opportunities in MJS Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). MJS Foundation Inc funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/mjs-foundation-inc-morg_fe0f09f4127a44108b98295a5041ac16
BibTeX
@misc{grantable_453826353_2026,
author = {{Grantable}},
title = {{MJS Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/mjs-foundation-inc-morg_fe0f09f4127a44108b98295a5041ac16},
note = {Accessed 2026-10-12. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from MJS Foundation Inc'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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