David and Masako Rosen Family Foundation
The David and Masako Rosen Family Foundation is a private foundation based in Wilmington, Delaware. It makes grants to preselected charitable organizations and states that it does not accept unsolicited requests for funds.
David and Masako Rosen Family Foundation at a glance
In short: David and Masako Rosen Family Foundation gave $201K across 37 grants in 2025 (avg $5K), mostly in California. 3% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $200,500
- -0.5% vs 2024
- Grants made (2025)
- 37
- +0.0% vs 2024
- Average grant
- $5,419
- -0.5% vs 2024
- Median grant
- $2,500
- Total assets
- $4,280,035
- -1.5% vs 2024
- New grantees (estimate)
- 3% first-time grantees (1 of 37, 2025)
- Primary geography
- California (60% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to David and Masako Rosen Family Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.
- Contact
Mailing address: Foundation Source 501 Silverside Rd, Wilmington, DE 19809-1377
Phone: (800) 839-1754
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who David and Masako Rosen Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Cedars-Sinai Medical Center ($30K). Together the top 10 received $146K.
Grant Size Distribution
184 grants across all recorded years
The most common grant size was under $50K: 183 grants of 184 (99%).
Geographic Focus
Where this funder awards grants
In 2025, California received 60% of grant dollars, followed by New Jersey (11%), New York (9%), Maryland (6%), and Virginia (5%). These figures describe the locations of grant recipients.
Grant Distribution by State
Share of 2025 grant dollars across all 37 itemized grants.
States
Cities
Is David and Masako Rosen Family Foundation open to new grantees?
3%
first-time grantees, 2025
In 2025, 1 of 37 grantees (3%) were first-time recipients. First grants averaged $2K; repeat grants $6K. How we count
Medians: $2K first-time, $3K repeat.
- 97% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−8%). Method
- In 2025 it paid out 95% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). 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 2019 to 2025, annual grant giving ranged from $132K (2019) to $238K (2020). In 2025 it made 37 grants totaling $201K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Cedars-Sinai Medical Center Los Angeles, CA | General & Unrestricted | $30,000 |
| Worthy of Love Los Angeles, CA | General & Unrestricted | $25,000 |
| The Bessemer Giving Fund Woodbridge, NJ | General & Unrestricted | $23,000 |
| Jewish Federation Council of Greater Los Angeles Los Angeles, CA | General & Unrestricted | $20,000 |
| Cooperative for Assistance and Relief Everywhere I Merrifield, VA | General & Unrestricted | $10,000 |
| Medecins Sans Frontieres USA Inc Hagerstown, MD | General & Unrestricted | $10,000 |
| The People Concern Los Angeles, CA | General & Unrestricted | $10,000 |
| Project Ezra New York, NY | General & Unrestricted | $8,000 |
| Mercy Ships Lindale, TX | General & Unrestricted | $5,000 |
| Survivor Mitzvah Project Los Angeles, CA | General & Unrestricted | $5,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $4,280,035 | $178,659 | $244,821 | $200,500 | 37 | $226,475 | $162,113 | $237,562 |
| 2024 | $4,346,197 | $243,592 | $231,060 | $201,500 | 37 | $226,655 | $244,677 | $227,984 |
| 2023 | $4,333,665 | $51,722 | $223,491 | $198,000 | 37 | $222,385 | $51,716 | $226,390 |
| 2022 | $4,505,434 | $62,540 | $242,086 | $217,000 | 36 | $241,295 | $62,349 | $221,540 |
| 2021 | $4,683,980 | $7,249 | $218,842 | $183,500 | 37 | $218,839 | $7,246 | $242,405 |
| 2020 | $4,895,573 | $2,049,793 | $300,775 | $238,400 | 38 | — | $2,344,863 | $219,278 |
| 2019 | $3,146,555 | $83,723 | $162,718 | $131,547 | 37 | — | $81,463 | $271,011 |
Under IRS private-foundation payout rules, David and Masako Rosen Family Foundation reported a distributable amount of $238K 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’s own filing does not state a mission. Its 2025 grants went to organizations working in areas including healthcare, homelessness and family violence, humanitarian emergency aid, and support for Holocaust survivors.
For example, Cedars-Sinai Medical Center describes its mission as elevating the health status of the communities it serves through healthcare, research, and education. Worthy of Love says it sponsors birthday celebrations for children experiencing homelessness in Los Angeles. Médecins Sans Frontières USA describes its work as providing independent medical humanitarian emergency aid. The People Concern says it addresses homelessness, poverty, illness, abuse, and addiction, while Survivor Mitzvah Project says it works to alleviate the hunger, poverty, and suffering of Jewish Holocaust survivors and maintain an archive.
Grantmaking
In 2025, the foundation reported 37 grants totaling $200,500. Grants ranged from $500 to $30,000, with a median of $2,500. It reported 37 grants totaling $201,500 in 2024 and 37 totaling $198,000 in 2023.
Among its largest 2025 grants were $30,000 to Cedars-Sinai Medical Center, $25,000 to Worthy of Love, $23,000 to The Bessemer Giving Fund, and $20,000 to Jewish Federation Council of Greater Los Angeles. Other recipients included Cooperative for Assistance and Relief Everywhere I and Médecins Sans Frontières USA Inc. ($10,000 each), The People Concern ($10,000), and Project Ezra ($8,000). The listed grants were designated for general and unrestricted purposes.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists David Rosen as CEO, president, director, and chairman; Masako Rosen as a director; Brad Callaway as director and secretary; Sam Kossak as a director; and Michael Zeller as treasurer and director.
David and Masako Rosen Family Foundation is led by David Rosen, CEO, President, Director & Chairman since 2022 (on filings since 2019); none of the 5 officers listed in 2025 report compensation.
Officers on the 2025 filing
David Rosen
CEO, President, Director & Chairman
President & Director → CEO, Director, Chairman & President, 2022
On filings since 2019
1 hr/week
No compensation reported
Brad Callaway
Director & Secretary
Director → Director & Secretary, 2022
On filings since 2019
1 hr/week
No compensation reported
Masako Rosen
Director
Director & Secretary → Director, 2023
On filings since 2019
1 hr/week
No compensation reported
Michael Zeller
Treasurer & Director
On filings since 2019
1 hr/week
No compensation reported
Sam Kossak
Director
New on the 2025 filing
1 hr/week
No compensation reported
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 David and Masako Rosen Family Foundation
How much does David and Masako Rosen Family Foundation give each year?
David and Masako Rosen Family Foundation gave $201K across 37 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $202K across 37 grants.
What is David and Masako Rosen Family Foundation's typical grant size?
David and Masako Rosen Family Foundation's median grant in 2025 was $2,500, and its average grant was $5,419, across 37 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from David and Masako Rosen Family Foundation that year got $2K on average.
Where does David and Masako Rosen Family Foundation give grants?
David and Masako Rosen Family Foundation gives mostly in California: 60% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were New Jersey (11%) and New York (9%). The most frequent recipient cities were Los Angeles, CA (13 grants), New York, NY (6 grants) and Washington, DC (3 grants).
Does David and Masako Rosen Family Foundation give general operating support?
Yes: 97% of David and Masako Rosen Family Foundation's 2025 grants with a stated purpose (36 of 37) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are David and Masako Rosen Family Foundation's largest grantees?
David and Masako Rosen Family Foundation's largest 2025 grantees include Cedars-Sinai Medical Center ($30,000), Worthy of Love ($25,000) and The Bessemer Giving Fund ($23,000), according to its 2025 IRS Form 990-PF. Together they received 39% of its itemized 2025 grant dollars.
How large is David and Masako Rosen Family Foundation?
David and Masako Rosen Family Foundation reported $4.3M in total assets on its 2025 IRS Form 990-PF. It paid out $226K in qualifying distributions that year, against a required minimum of $238K (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 does David and Masako Rosen Family Foundation fund?
The foundation’s own filing does not state a mission. Its 2025 grants went to organizations working in areas including healthcare, homelessness and family violence, humanitarian emergency aid, and support for Holocaust survivors. See mission & focus areas ↑
How do I apply for a grant from David and Masako Rosen Family Foundation?
The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is David and Masako Rosen Family Foundation's EIN?
David and Masako Rosen Family Foundation's EIN (Employer Identification Number) is 95-4619237. IRS Form 990 filing data is available on this page for 2019–2025.
Does David and Masako Rosen Family Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 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 2024 (received by the IRS May 5, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 24, 2026)
- Added Form 990-PF for fiscal year 2019 (received by the IRS May 14, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS June 2, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 11, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 8, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS October 24, 2024)
Live grants for the work David and Masako Rosen Family Foundation funds
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Cite this profile
Grantable. (2026). David and Masako Rosen Family Foundation funder profile. GrantGraph. Retrieved October 23, 2026, from https://grantable.co/funders/david-and-masako-rosen-family-foundation-morg_5b669629baee4fb2aa648c30fd357bda
BibTeX
@misc{grantable_954619237_2026,
author = {{Grantable}},
title = {{David and Masako Rosen Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/david-and-masako-rosen-family-foundation-morg_5b669629baee4fb2aa648c30fd357bda},
note = {Accessed 2026-10-23. 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 David and Masako Rosen Family 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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