Bill and Dinah Ruch Family Foundation

Private foundation · Grantmaker Wilmington, DE EIN: 45-3990748

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.

Key facts about Bill and Dinah Ruch Family Foundation

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.

EIN
45-3990748
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$500,000
Grants made (2025)
1
Average grant
$500,000
Median grant
$500,000
Total assets
$11,145,929
Primary geography
California (100% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$11.1M

+36.6% YoY

Annual Giving

$500K

-23.1% YoY

Grant Count

1

-50.0% YoY

Avg Grant Size

$500K

+53.8% YoY

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.

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.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

2states

Share of the 2025 grant dollars on its one itemized grant.

Cities

Los AngelesLa JollaNew OrleansPorter RanchBlue JayNorthridgePanorama City

Giving Over Time

Total grant dollars and number of grants per year

$0$250K$500K$750K$1M2 grants2020 3 grants2021 5 grants2022 8 grants2023 2 grants2024 1 grant2025

From 2020 to 2025, annual grant giving ranged from $48K (2021) to $875K (2023). In 2025 it made 1 grant totaling $500K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top recipient in 2025

Sanford Burnham Prebys Medical Discovery Institute: $500KSanford Burnham Prebys MedicalDiscovery Institute$500K

The largest 2025 recipient was Sanford Burnham Prebys Medical Discovery Institute ($500K).

Grant Size Distribution

19 grants across all recorded years

10<$50K$50–100K5$100–250K1$250–500K3$500K–1M$1–5M$5M+

The most common grant size was under $50K: 10 grants of 19 (53%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Sanford Burnham Prebys Medical Discovery Institute La Jolla, CAThe William W. Ruch Distinguished Endowed Chair$500,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$1M$2M$3M$4M2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$11,145,929$8,157,323$5,523,194
Revenue$3,544,754$3,336,122$938,998
Expenses$556,148$701,993$897,856
Qualifying Distributions$511,248$660,922$885,656
Net Investment Income$3,401,670$3,191,821$816,171
Distributable Amount$693,724$612,797$545,812

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS September 9, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS October 6, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS June 20, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS April 4, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS September 4, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)
  7. IRS filings on file for fiscal years 2020–2024

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.

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Bill and Dinah Ruch 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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