The Warrensodenhopkins Family

Private foundation · Grantmaker San Marino, CA EIN: 95-4447796

The Warrensodenhopkins Family is a private foundation, based in San Marino, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $789K in total assets. In 2025, it awarded 8 grants totaling $105K. Net investment income was $61K.

The Warrensodenhopkins Family at a glance

In short: The Warrensodenhopkins Family gave $105K across 8 grants in 2025 (avg $13K), top state New York. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$105,000
+23.5% vs 2024
Grants made (2025)
8
+14.3% vs 2024
Average grant
$13,125
+8.1% vs 2024
Median grant
$10,000
Total assets
$789,223
-6.6% vs 2024
Primary geography
New York (29% 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 The Warrensodenhopkins Family funds

How this funder distributes its grants

Top Recipients

Top 8 recipients in 2025

American Diabetes Association: $25KAmerican Diabetes Association$25KChildrens Hospital Los Angeles: $15KChildrens Hospital Los Angeles$15KDuke Center for Intergrative Med: $15KDuke Center for IntergrativeMed$15KDuke Cancer Patient Support Program: $10KDuke Cancer Patient SupportProgram$10KHuntington Memorial Hospital: $10KHuntington Memorial Hospital$10KMemorial Sloan-Kettering Cancer: $10KMemorial Sloan-KetteringCancer$10KNational Multiple Sclerosis Society: $10KNational Multiple SclerosisSociety$10KThe Michael J Fox Foundation: $10KThe Michael J Fox Foundation$10K

The largest 2025 recipient was American Diabetes Association ($25K). Together the top 8 received $105K.

Grant Size Distribution

27 grants across all recorded years

27<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 27 grants of 27 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

4states

Share of 2025 grant dollars across all 8 itemized grants.

Cities

New YorkDurhamLos AngelesArlingtonPasadena

How The Warrensodenhopkins Family gives

  • Giving grew 40% from 2022 to 2025. Method
  • In 2025 it paid out 201% of its IRS minimum distribution (the 5% rule). 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

$0$50K$100K$150K6 grants2020 0 grants2021 6 grants2022 6 grants2023 7 grants2024 8 grants2025

From 2020 to 2025, annual grant giving ranged from $57K (2020) to $105K (2025). In 2025 it made 8 grants totaling $105K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
American Diabetes Association Arlington, VACharitable Support$25,000
Childrens Hospital Los Angeles Los Angeles, CACancer Research$15,000
Duke Center for Intergrative Med Durham, NCProgram Support$15,000
Duke Cancer Patient Support Program Durham, NCEndowment Fund$10,000
Huntington Memorial Hospital Pasadena, CACharitable Support$10,000
Memorial Sloan-Kettering Cancer New York, NYCancer Reserach$10,000
National Multiple Sclerosis Society New York, NYMedical Research$10,000
The Michael J Fox Foundation New York, NYProgram Support$10,000
Your AI grants department

Ready to take the next step with The Warrensodenhopkins Family?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$789,223$73,947$129,492$105,0008$116,929$61,334$58,171
2024$844,908$70,291$99,961$85,0007$92,262$55,975$56,640
2023$874,780$59,377$90,038$75,0006$82,771$51,060$52,798
2022$905,127$84,097$89,877$75,0006$82,783$70,417$51,643
2021$913,013$73,889$8,622——$4,178$65,195$58,104
2020$848,306$136,661$70,977$57,1756—$52,306$46,559

Under IRS private-foundation payout rules, The Warrensodenhopkins Family reported a distributable amount of $58K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

The Warrensodenhopkins Family is led by Stephen Hopkins Warren, Secretary, Director & Acting President since 2021 (on filings since 2020); none of the 3 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Stephen Hopkins Warren

    Secretary, Director & Acting President

    Secretary → Secretary, Director & Acting President, 2021

    On filings since 2020

    8 hrs/week

    No compensation reported

  • Carol Ann Warren

    Director & Assistant Secretary

    Director → Director & Assistant Secretary, 2024

    On filings since 2020

    1 hr/week

    No compensation reported

  • Kimberly Ann Warren

    Assistant Secretary & Director

    CFO → CFO & Director, 2021

    CFO & Director → Assistant Secretary & Director, 2024

    On filings since 2020

    1 hr/week

    No compensation reported

Former officers (1)
  • Former: Robert S. Warren (2020) — President

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 The Warrensodenhopkins Family

How much does The Warrensodenhopkins Family give each year?

The Warrensodenhopkins Family gave $105K across 8 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $85K across 7 grants.

What is The Warrensodenhopkins Family's typical grant size?

The Warrensodenhopkins Family's median grant in 2025 was $10,000, and its average grant was $13,125, across 8 grants on its 2025 IRS Form 990-PF.

Where does The Warrensodenhopkins Family give grants?

The Warrensodenhopkins Family's top state is New York, with 29% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Virginia (24%) and California (24%). The most frequent recipient cities were New York, NY (3 grants) and Durham, NC (2 grants).

Does The Warrensodenhopkins Family give general operating support?

Not in 2025: none of the 8 grants with a stated purpose on The Warrensodenhopkins Family's 2025 IRS Form 990-PF were described as general or operating support.

Who are The Warrensodenhopkins Family's largest grantees?

The Warrensodenhopkins Family's largest 2025 grantees include American Diabetes Association ($25,000), Childrens Hospital Los Angeles ($15,000) and Duke Center for Intergrative Med ($15,000), according to its 2025 IRS Form 990-PF. Together they received 52% of its itemized 2025 grant dollars.

How large is The Warrensodenhopkins Family?

The Warrensodenhopkins Family reported $789K in total assets on its 2025 IRS Form 990-PF. It paid out $117K in qualifying distributions that year, against a required minimum of $58K (roughly 5% of its investment assets).

What is The Warrensodenhopkins Family's EIN?

The Warrensodenhopkins Family's EIN (Employer Identification Number) is 95-4447796. 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

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS August 21, 2026)
  2. IRS filings on file for fiscal years 2020–2024

Explore Open Grants

Browse active grant opportunities in The Warrensodenhopkins Family's focus areas in our free grants database

Similar Funders

Funders with grantees in common

Enterprise Holdings Foundation

Saint Louis, MO

The Enterprise Holdings Foundation supports charitable and educational nonprofits in communities where Enterprise Mobility operates, focusing on health, education, arts, and disaster relief; applicants must be actively supported by an Enterprise Mobility team member, spouse, or domestic partner. Giving varies widely: it reported 9,499 grants in 2024, but its 2025 filing showed one grant of $101.4 million, so that amount is not a typical award. Applications are accepted at any time through eligible Enterprise-affiliated applicants; the Foundation does not limit giving to preselected organizations.

Assets

$594.3M

Grants

1

Total Given

$101.4M

Grace and Li Yu Family Foundation

Los Angeles, CA

The foundation supports a varied range of charitable organizations, including cultural, health, humanitarian, educational, and religious causes, with nearly all 2025 funding going to California. Its 20 grants ranged from $100 to $187,500, with a median grant of $10,000. It does not accept unsolicited requests and gives only to preselected organizations.

Assets

$7.4M

Grants

20

Total Given

$619K

Aetna Foundation Inc

Hartford, CT

Aetna Foundation supported health and wellness, access to health care, and related community needs; its 2021 grants ranged from $5,000 to $1 million, with a median of $40,000, and went to organizations across multiple states, especially in D.C. and Connecticut. Its 2021 filing was marked final, so it appears to have ended or be winding down grantmaking; that filing said there were no restrictions on who could apply and pointed applicants to its website for application materials.

Assets

—

Grants

65

Total Given

$7.2M

McKesson Foundation Inc

Dallas, TX

The McKesson Foundation funds cancer support and care, healthcare workforce pathways, and emergency response, with grants mainly supporting organizations in the United States and Canada. Its 2025 grants had a median of $100,000, though amounts ranged from $10,000 to about $2.47 million. Its filing says it does not accept unsolicited requests, while its application page describes an online application process with stated submission windows.

Assets

$1.6M

Grants

76

Total Given

$16.6M

United Way Worldwide

Alexandria, VA

United Way Worldwide funds community programs focused on youth opportunity, health, financial security, education, and disaster relief, with 2024 grants made across multiple U.S. states and internationally. Its 209 reported grants ranged from $5,100 to $736,333, with a median of $22,675. It does not state whether it accepts unsolicited grant requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$68.0M

Grants

209

Total Given

$11.4M

The Sidley Austin Foundation

Chicago, IL

The Sidley Austin Foundation supports civil legal aid, higher education, community development, and children’s play spaces, with 2025 grants concentrated in Illinois, New York, California, Washington, D.C., and Maryland. Its 2025 grants ranged from $100 to $517,408, with a median of $5,000. It funds only preselected charitable organizations and does not accept unsolicited requests.

Assets

$16.9M

Grants

293

Total Given

$4.0M

More similar funders

More Funders in California

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

Figures come from The Warrensodenhopkins Family'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.

The Warrensodenhopkins Family down — hundreds of funders to go?

Want AI to do this for you?