Mann Medical Research Organization
Mann Medical Research Organization is a private foundation focused on Medical Research, based in San Fernando, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $55.4M in total assets. In 2025, it awarded 2 grants totaling $2.1M. Net investment income was $4.5M.
Mann Medical Research Organization at a glance
In short: Mann Medical Research Organization gave $2.1M across 2 grants in 2025 (avg $1.0M), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $2,075,000
- +0.0% vs 2024
- Grants made (2025)
- 2
- +0.0% vs 2024
- Average grant
- $1,037,500
- +0.0% vs 2024
- Median grant
- $1,037,500
- Total assets
- $55,361,810
- +9.6% vs 2024
- Primary geography
- California (96% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated November 2026.
Who Mann Medical Research Organization funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
The largest 2025 recipient was University of Southern California ($2.0M). Together the top 2 received $2.1M.
Grant Size Distribution
16 grants across all recorded years
The most common grant size was in the $50–100K range: 6 grants of 16 (38%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
States
Cities
How Mann Medical Research Organization gives
- Giving grew 108% from 2022 to 2025. Method
- In 2025 it paid out 87% 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 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $125K (2019) to $2.1M (2025). In 2025 it made 2 grants totaling $2.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of Southern California Los Angeles, CA | Support of usc cardiac and vascular institute at keck medicine of usc. | $2,000,000 |
| Cure Alzheimer's Fund Wellesley Hills, MA | General Operation Support | $75,000 |
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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 | $55,361,810 | $7,305,685 | $386,120 | $2,075,000 | 2 | $2,242,204 | $4,497,957 | $2,567,527 |
| 2024 | $50,492,245 | $5,659,609 | $10,421,082 | $2,075,000 | 2 | $2,179,592 | $1,913,149 | $2,502,326 |
| 2023 | $46,840,025 | $2,558,669 | $579,741 | $1,247,500 | 6 | $1,357,492 | $2,375,008 | $2,221,214 |
| 2022 | $44,372,004 | $1,062,049 | $2,182,244 | $1,000,000 | 4 | $1,038,472 | $865,672 | $2,221,643 |
| 2021 | $51,776,775 | $3,358,890 | $241,649 | $125,000 | 2 | — | $3,337,627 | — |
| 2020 | $41,936,442 | $918,533 | $263,745 | $160,000 | 6 | — | $960,441 | — |
| 2019 | $40,733,528 | $21,976,085 | $353,069 | $125,000 | 2 | — | $22,279,658 | — |
Under IRS private-foundation payout rules, Mann Medical Research Organization reported a distributable amount of $2.6M for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mann Medical Research Organization is led by Michael S. Dreyer, Director & President on every filing since 2019; 2 of 3 officers listed in 2025 are compensated.
Officers on the 2025 filing
Michael S. Dreyer
Director & President
On filings since 2019
4 hrs/week
$19K (2022) → $92K (2025)
Anoosheh Bostani
Director, Treasurer & Secretary
On filings since 2019
8 hrs/week
$13K (2022) → $88K (2025)
Claude Mann
Director
On filings since 2019
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $92K, to Michael S Dreyer (Director, President). 2 officers or directors reported compensation on that filing.
Frequently asked questions about Mann Medical Research Organization
How much does Mann Medical Research Organization give each year?
Mann Medical Research Organization gave $2.1M across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $2.1M across 2 grants.
How large is Mann Medical Research Organization?
Mann Medical Research Organization reported $55.4M in total assets on its 2025 IRS Form 990-PF. It paid out $2.2M in qualifying distributions that year, against a required minimum of $2.6M (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 Mann Medical Research Organization?
Mann Medical Research Organization is a private foundation focused on Medical Research, based in San Fernando, CA. It holds $55.4M in total assets as of 2025.
Where does Mann Medical Research Organization operate?
Mann Medical Research Organization has awarded grants in California, Massachusetts.
What is Mann Medical Research Organization's EIN?
Mann Medical Research Organization's EIN (Employer Identification Number) is 20-1002571. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated November 2026. Sourced from IRS Form 990 filings.
Data update history
(5)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2024 (received by the IRS September 4, 2026)
- Added Form 990-PF for fiscal year 2025 (received by the IRS September 2, 2026)
- Added Form 990 for fiscal year 2019 (received by the IRS May 28, 2020)
- Updated Form 990 for fiscal year 2020 (received by the IRS May 7, 2021)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Mann Medical Research Organization funds
Medical Research Open opportunities, soonest deadline first.
- Medical Research Grants- Resubmission Grants Up to US $25,000 · Due November 12, 2026
- Melanoma Career Development Award (CDA)- New Application Grant Up to US $50,000 · Due November 13, 2026
- Annual Grants Up to $500,000 for translational/correlative grants; Up to $800,000 for clinical trials · Due November 15, 2026
Explore Open Grants
Browse active grant opportunities in Mann Medical Research Organization's focus areas in our free grants database
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