A P Giannini Foundation
Accepts applications
A P Giannini Foundation is a private foundation in San Rafael, California. In tax year 2025 it gave $1.2 million in 19 grants; the typical grant was $70,000 and the largest $70,000. It accepts applications; its filing gives the instructions below.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$1.2 million
- Number of grants19
- Typical grant$70,000
- Largest grant$70,000
- Assets$30.0 million
- New grantees0%
Giving in 2025 was up from $1.2 million the year before.
0% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $1.0 million | 19 | $26.5 million |
| 2024 | $1.2 million | 18 | $28.1 million |
| 2025 | $1.2 million | 19 | $30.0 million |
How to apply
| Contact | Ken Blum Administrator PO Box 6106, San Rafael, CA 94903 |
|---|---|
| Phone or email | (415) 981-2966 |
| What to submit, deadlines, restrictions | See exhibit 1 |
Foundation website IRS filings on ProPublica
What A P Giannini Foundation funds
Where it gives
All of its grants went to recipients in California.
| State | Grants | Amount |
|---|---|---|
| California | 19 | $1.2 million |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Stanford University School of Medicine | For medical research fellowship-basto | $70,000 |
| Stanford University School of Medicine | For medical research fellowship-chanin | $70,000 |
| Stanford University School of Medicine | For medical research fellowship-van egeren | $70,000 |
| Stanford University School of Medicine | For medical research fellowship-li | $70,000 |
| Uc Irvine School of Medicine | For medical research fellowship-yonan | $70,000 |
| Uc Irvine School of Medicine | For medical research fellowship-pendlebury | $70,000 |
| Uc San Diego School of Medicine | For medical research fellowship-ngo | $70,000 |
| Uc San Diego School of Medicine | For medical research fellowship-doud | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-jin | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-konjikusic | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-fan | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-mengaswasser | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-simon | $70,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-zhao | $70,000 |
| David Geffen School of Medicine at UCLA | For medical research fellowship-campbell | $64,000 |
| David Geffen School of Medicine at UCLA | For medical research fellowship-ryan | $64,000 |
| Uc Davis School of Medicine | For medical research fellowship-cardfor medical research fellowship-card | $64,000 |
| Uc San Francisco School of Medicine | For medical research fellowship-wang | $64,000 |
| Ap Giannini Middle School PTA | For student award program and production of student-teacher binders | $7,000 |
Officers and trustees
- Mike Mantle
- Virginia Hammerness
- Mark C Perry
- Bruce U Wintroub MD
- Keith Grossman
- Jack L Meyers
- Anne McWilliams
- Keith McWilliams
- Mark Chaomdphd
Questions people ask
Does A P Giannini Foundation accept grant applications?
Yes. Its latest IRS filing says it accepts applications, with this on deadlines: See exhibit 1.
How much does A P Giannini Foundation give?
$1.2 million in tax year 2025, across 19 grants, with a typical grant of $70,000.
Who runs A P Giannini Foundation?
Its 2025 filing lists Mike Mantle (Treasurer), Virginia Hammerness (Director - (Dec'd 05/31/25)), Mark C Perry (Chairman) and Bruce U Wintroub MD (Director) among 9 officers and trustees.
What does A P Giannini Foundation fund?
Based on its grants, mainly education, health and science and research.