Bill and Dinah Ruch Family Foundation
Bill and Dinah Ruch Family Foundation is a private foundation, based in Wilmington, DE. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $11.1M in total assets. In 2025, it awarded 1 grant totaling $500K. Net investment income was $3.4M.
Bill and Dinah Ruch Family Foundation at a glance
In short: Bill and Dinah Ruch Family Foundation gave $500K across 1 grant in 2025 (avg $500K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $500,000
- -23.1% vs 2024
- Grants made (2025)
- 1
- -50.0% vs 2024
- Average grant
- $500,000
- +53.8% vs 2024
- Median grant
- $500,000
- Total assets
- $11,145,929
- +36.6% vs 2024
- Primary geography
- California (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Bill and Dinah Ruch Family Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Sanford Burnham Prebys Medical Discovery Institute ($500K).
Grant Size Distribution
19 grants across all recorded years
The most common grant size was under $50K: 10 grants of 19 (53%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Bill and Dinah Ruch Family Foundation gives
- Giving held roughly steady from 2022 to 2025 (−7%). Method
- In 2025 it paid out 74% 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-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $48K (2021) to $875K (2023). In 2025 it made 1 grant totaling $500K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Sanford Burnham Prebys Medical Discovery Institute La Jolla, CA | The William W. Ruch Distinguished Endowed Chair | $500,000 |
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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 | $11,145,929 | $3,544,754 | $556,148 | $500,000 | 1 | $511,248 | $3,401,670 | $693,724 |
| 2024 | $8,157,323 | $3,336,122 | $701,993 | $650,000 | 2 | $660,922 | $3,191,821 | $612,797 |
| 2023 | $5,523,194 | $938,998 | $897,856 | $875,000 | 8 | $885,656 | $816,171 | $545,812 |
| 2022 | $5,482,052 | $635,050 | $557,733 | $540,000 | 5 | $550,525 | $1,089,296 | $525,013 |
| 2021 | $5,404,735 | $1,214,440 | $63,295 | $47,500 | 3 | $58,025 | $135,920 | $519,181 |
| 2020 | $4,253,590 | $580,710 | $474,350 | $460,000 | 2 | — | $550,934 | $378,313 |
Under IRS private-foundation payout rules, Bill and Dinah Ruch Family Foundation reported a distributable amount of $694K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Bill and Dinah Ruch Family Foundation is led by Dinah Ruch, Director & President on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Dinah Ruch
Director & President
On filings since 2020
1 hr/week
No compensation reported
Jennifer Walner
Secretary
On filings since 2020
1 hr/week
No compensation reported
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.
Frequently asked questions about Bill and Dinah Ruch Family Foundation
How much does Bill and Dinah Ruch Family Foundation give each year?
Bill and Dinah Ruch Family Foundation gave $500K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $650K across 2 grants.
How large is Bill and Dinah Ruch Family Foundation?
Bill and Dinah Ruch Family Foundation reported $11.1M in total assets on its 2025 IRS Form 990-PF. It paid out $511K in qualifying distributions that year, against a required minimum of $694K (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.
Where does Bill and Dinah Ruch Family Foundation operate?
Bill and Dinah Ruch Family Foundation has awarded grants in California, Louisiana.
What is Bill and Dinah Ruch Family Foundation's EIN?
Bill and Dinah Ruch Family Foundation's EIN (Employer Identification Number) is 45-3990748. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
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 September 9, 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 20, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 4, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS September 4, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Bill and Dinah Ruch Family Foundation funds
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