John Ritter Foundation for Aortic Health
To raise awareness of thoracic aortic dissection and aneurysm through research, education, and advocacy.
John Ritter Foundation for Aortic Health at a glance
In short: John Ritter Foundation for Aortic Health gave $261K across 3 grants in 2025 (avg $87K), top state Texas. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $261,043
- +30.5% vs 2024
- Grants made (2025)
- 3
- +200.0% vs 2024
- Average grant
- $87,014
- -56.5% vs 2024
- Median grant
- $104,543
- Total assets
- $549,381
- +20.1% vs 2024
- Primary geography
- Texas (41% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
How to apply to John Ritter Foundation for Aortic Health
Open Grants
1 open opportunity from John Ritter Foundation for Aortic Health
Who John Ritter Foundation for Aortic Health funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
The largest 2025 recipient was The University of Texas Health Science Center at Houston ($108K). Together the top 3 received $261K.
Grant Size Distribution
17 grants across all recorded years
The most common grant size was in the $100–250K range: 7 grants of 17 (41%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
Cities
How John Ritter Foundation for Aortic Health gives
- Giving fell 53% from 2022 to 2025. 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 2018 to 2025, annual grant giving ranged from $163K (2019) to $560K (2022). In 2025 it made 3 grants totaling $261K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The University of Texas Health Science Center at Houston Houston, TX | Diagnostic Tool for Aortic Dissection and Genetic Testing. | $107,934 |
| Geisinger Clinic Danville, PA | Using data to build a framework to predict aortic dissections. | $104,543 |
| University of Washington Seattle, WA | Genetic Testing in Post-Mortem Aortic Dissection Patients. | $48,566 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $549,381 | $1,166,138 | $1,189,578 | $261,043 | 3 | $3,204 |
| 2024 | $457,409 | $1,042,070 | $1,073,293 | $200,000 | 1 | $6,077 |
| 2023 | $450,331 | $871,460 | $1,280,635 | $420,835 | 6 | $2,147 |
| 2022 | $451,053 | $741,139 | $1,218,661 | $560,214 | 7 | $153 |
| 2021 | $667,000 | $240,016 | $375,687 | — | — | $13 |
| 2020 | $786,974 | $163,410 | $106,434 | — | — | $72 |
| 2019 | $732,247 | $302,784 | $303,698 | $163,025 | 1 | $113 |
| 2018 | $732,713 | $288,213 | $308,931 | $203,925 | 1 | $53 |
About John Ritter Foundation for Aortic Health
Based on IRS filings
John Ritter Foundation for Aortic Health is a public charity, based in Los Angeles, CA. IRS filing data is available from 2018 through 2025. As of 2025, the organization holds $549K in total assets. In 2025, it awarded 3 grants totaling $261K. Net investment income was $3K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
John Ritter Foundation for Aortic Health is led by Meredith O'Neal, CEO on every filing since 2022; 2 of 14 officers listed in 2025 are compensated.
Officers on the 2025 filing
Meredith O'Neal
CEO
On filings since 2022
40 hrs/week
$141K (2022) → $163K (2025)
Whitney Strauss
Chairman
Director → Chairman, 2025
On filings since 2023
15 hrs/week
No compensation reported
Amy Yasbeck
Director
President & CEO → Chairman, 2022
Chairman → Director, 2025
On filings since 2018
20 hrs/week
No compensation reported
Dianna Milewicz
Director
Vice President → Director, 2023
On filings since 2022
5 hrs/week
No compensation reported
Donald Schwartz
Director
On filings since 2022
5 hrs/week
No compensation reported
Jason Ritter
Director
On filings since 2022
5 hrs/week
No compensation reported
Tyler Ritter
Director
On filings since 2022
5 hrs/week
No compensation reported
Bridget Porter
Director
On filings since 2024
5 hrs/week
No compensation reported
Cynthia Retterer
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Gregory Weaver
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Kenneth Johnson
Director
New on the 2025 filing
5 hrs/week
No compensation reported
Ellen Hostetler
Chief Science Officer
Chief Science → Chief Science Officer, 2024
On filings since 2022
40 hrs/week
$89K (2023) → $105K (2025)
Laura Derr
Treasurer
Vice President → Secretary, 2022
Secretary → Treasurer, 2025
On filings since 2018
15 hrs/week
No compensation reported
Carolyn Wang
Secretary
Director → Secretary, 2025
On filings since 2023
10 hrs/week
No compensation reported
Former officers (11)
- Former: Adam Dinkes (2022–2025) — Director · Filing note: Until nov 2024
- Former: Carly Ritter Rappold (2022–2025) — Director · Filing note: Until dec 2024
- Former: Nancy Petrera (2022–2025) — Director · Filing note: Until April 2025
- Former: Cindy Retterer (2018–2024) — Director
- Former: Jenn Vacirca (2018–2024) — Treasurer
- Former: Greg Weaver (2022–2024) — Director
- Former: Kent Johnson (2022–2024) — Director
- Former: Bridget Porter Metz (2022–2023) — Director
- Former: Noah Ritter (2022–2023) — Director
- Former: Joss Richards (2023) — Director
- Former: Diana Milwicz (2018–2021) — Vice President
Data from IRS Form 990 filings, 2018–2025. "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 $163K, to Meredith O'Neal (CEO). 2 officers or directors reported compensation on that filing.
Frequently asked questions about John Ritter Foundation for Aortic Health
How much does John Ritter Foundation for Aortic Health give each year?
John Ritter Foundation for Aortic Health gave $261K across 3 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $200K across 1 grant.
What is John Ritter Foundation for Aortic Health's typical grant size?
John Ritter Foundation for Aortic Health's median grant in 2025 was $104,543, and its average grant was $87,014, across 3 grants on its 2025 IRS Form 990.
Where does John Ritter Foundation for Aortic Health give grants?
John Ritter Foundation for Aortic Health's top state is Texas, with 41% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were Pennsylvania (40%) and Washington (19%).
Does John Ritter Foundation for Aortic Health give general operating support?
Not in 2025: none of the 3 grants with a stated purpose on John Ritter Foundation for Aortic Health's 2025 IRS Form 990 were described as general or operating support.
How large is John Ritter Foundation for Aortic Health?
John Ritter Foundation for Aortic Health reported $549K in total assets on its 2025 IRS Form 990. Its revenue that year was $1.2M.
What is John Ritter Foundation for Aortic Health's EIN?
John Ritter Foundation for Aortic Health's EIN (Employer Identification Number) is 26-0073309. IRS Form 990 filing data is available on this page for 2018–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2024 (received by the IRS August 19, 2025)
- Added Form 990 for fiscal year 2018 (received by the IRS January 28, 2020)
- Added Form 990 for fiscal year 2019 (received by the IRS August 17, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS August 13, 2026)
- Updated Form 990 for fiscal year 2022 (received by the IRS August 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS August 15, 2024)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work John Ritter Foundation for Aortic Health funds
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