Glenn Foundation for Medical
The Glenn Foundation for Medical Research is a private foundation based in Edmond, Oklahoma. Founded by Paul F. Glenn in 1965, it supports research on the biology of normal human aging and its related physiological decline, with the aim of translating research into interventions that extend healthspan.
Glenn Foundation for Medical at a glance
In short: Glenn Foundation for Medical gave $9.0M across 13 grants in 2025 (avg $695K), top state New York. 23% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $9,032,558
- -13.8% vs 2024
- Grants made (2025)
- 13
- -27.8% vs 2024
- Average grant
- $694,812
- +19.3% vs 2024
- Median grant
- $50,000
- Total assets
- $189,204,918
- +4.6% vs 2024
- New grantees (estimate)
- 23% first-time grantees (3 of 13, 2025; small sample)
- Primary geography
- New York (43% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Glenn Foundation for Medical
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Its listed award and fellowship programs have their own application procedures administered by AFAR.
- Contact
Mailing address: PO Box 2690, Edmond, OK 73083-2690
Phone: (405) 348-8987
Website: https://glennfoundation.org
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Glenn Foundation for Medical funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was American Federation for Aging Research ($3.9M). Together the top 10 received $9.0M.
Grant Size Distribution
67 grants across all recorded years
The most common grant size was under $50K: 33 grants of 67 (49%).
Geographic Focus
Where this funder awards grants
The 2025 grant dollars were distributed among recipients in New York (43%), California (23%), Massachusetts (12%), Minnesota (11%), and Michigan (11%).
Grant Distribution by State
Share of 2025 grant dollars across all 13 itemized grants.
States
Cities
Is Glenn Foundation for Medical open to new grantees?
23%
first-time grantees, 2025
In 2025, 3 of 13 grantees (23%) were first-time recipients. With only 13 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $353K; repeat grants $797K. How we count
Medians: $50K first-time, $513K repeat.
- 62% of 2025 grantees were also funded in 2024. Method
- Giving grew 66% from 2022 to 2025. Method
- In 2025 it paid out 96% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2021–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $5.4M (2022) to $10.5M (2024). In 2025 it made 13 grants totaling $9.0M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| American Federation for Aging Research New York, NY | Medical Research | $3,898,143 |
| Buck Institute Novato, CA | Medical Research | $1,000,000 |
| Harvard College Boston, MA | Medical Research | $1,000,000 |
| Mayo Clinic Minneapolis, MN | Medical Research | $1,000,000 |
| Stanford University Los Angeles, CA | Medical Research | $1,000,000 |
| University of Michigan Ann Arbor, MI | Medical Research | $1,000,000 |
| University of Chicago Marine Biology Lab Woods Hole, MA | Medical Research | $50,000 |
| UCSF Foundation San Franciso, CA | Medical Research | $25,000 |
| Gerontological Society of America Washington, DC | Medical Research | $15,000 |
| Salk Institute La Jolla, CA | Medical Research | $12,538 |
Ready to take the next step with Glenn Foundation for Medical?
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 | $189,204,918 | $19,842,299 | $11,758,621 | $9,032,558 | 13 | $9,636,727 | $16,215,567 | $10,042,471 |
| 2024 | $180,933,206 | $16,761,614 | $12,526,289 | $10,484,664 | 18 | $11,085,664 | $15,320,989 | $9,395,586 |
| 2023 | $180,263,788 | $5,608,931 | $10,524,598 | $8,038,499 | 13 | $8,553,108 | $7,470,815 | $9,211,627 |
| 2022 | $192,520,690 | $23,653,368 | $7,930,400 | $5,436,889 | 10 | $7,783,610 | $21,706,578 | $8,788,706 |
| 2021 | $166,852,182 | $15,201,816 | $9,970,970 | $8,412,737 | 13 | — | $12,750,465 | $8,284,356 |
Under IRS private-foundation payout rules, Glenn Foundation for Medical reported a distributable amount of $10.0M for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s mission is “to extend the healthy years of life through research on mechanisms of biology that govern normal human aging and its related physiological decline, with the objective of translating research into interventions that will extend healthspan with lifespan.”
Its programs support research into the basic mechanisms of aging. The Glenn Foundation and AFAR junior faculty program specifies that it supports research on basic aging mechanisms rather than disease-specific research. The Discovery Award accepts proposals from any branch of biology that may help explain the biological mechanisms of normal aging and age-associated health decline.
Recipients listed in the 2025 filing include research institutions and organizations. AFAR describes its mission as advancing healthy aging through biomedical research, including supporting research grants and early-career scientists. Mayo Clinic describes its mission as contributing to health and well-being through patient care, education, and research. The Gerontological Society of America describes itself as a convener of collaborations in the field of aging.
Grantmaking
In filing year 2025, the foundation reported 13 grants totaling $9,032,558. Grant amounts ranged from $10,000 to $3,898,143, with a median of $50,000.
The largest reported grants included $3,898,143 to the American Federation for Aging Research for medical research, and $1,000,000 each to the Buck Institute, Harvard College, Mayo Clinic, Stanford University, and the University of Michigan, also for medical research. Other listed recipients included the University of Chicago Marine Biology Lab ($50,000), UCSF Foundation ($25,000), Gerontological Society of America ($15,000), Salk Institute ($12,538), Yale University ($11,877), and Keystone Symposium ($10,000).
The foundation’s website lists current programs including the Glenn Foundation Discovery Award, Glenn Foundation and AFAR Grants for Junior Faculty, and Glenn Foundation Postdoctoral Fellowships in Aging Research. The Discovery Award plans up to two three-year awards of $555,000 each in 2026. The postdoctoral fellowship program plans up to twelve one-year fellowships of $80,000 in 2026. The junior faculty program provides up to $160,000 for one to two years of support. The website states that these programs are administered by AFAR and directs applicants to AFAR for eligibility and application procedures.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Mark R. Collins as president, director, and assistant secretary; K. Leonard Judson as CEO, secretary, treasurer, and director; and A. Ray Copeland as assistant treasurer and director.
Glenn Foundation for Medical is led by K. Leonard Judson, CEO, Secretary, Treasurer & Director on every filing since 2021; 1 of 3 officers listed in 2025 is compensated.
Officers on the 2025 filing
K. Leonard Judson
CEO, Secretary, Treasurer & Director
On filings since 2021
20 hrs/week
No compensation reported
Mark R. Collins
President, Director & Assistant Secretary
President & Director → President, Director & Assistant Secretary, 2024
On filings since 2021
40 hrs/week
$282K (2021) → $306K (2025)
A. Ray Copeland
Assistant Treasurer & Director
On filings since 2021
10 hrs/week
No compensation reported
Former officers (1)
- Former: Jack N. Rudel (2021–2023) — Assistant Secretary & Director
Data from IRS Form 990 filings, 2021–2025. "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 $306K, to Mark R Collins (President, Director, Asst Secretary).
Frequently asked questions about Glenn Foundation for Medical
How much does Glenn Foundation for Medical give each year?
Glenn Foundation for Medical gave $9.0M across 13 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $10.5M across 18 grants.
What is Glenn Foundation for Medical's typical grant size?
Glenn Foundation for Medical's median grant in 2025 was $50,000, and its average grant was $694,812, across 13 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Glenn Foundation for Medical that year got $353K on average.
Where does Glenn Foundation for Medical give grants?
Glenn Foundation for Medical's top state is New York, with 43% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were California (23%) and Massachusetts (12%).
Does Glenn Foundation for Medical give general operating support?
Not in 2025: none of the 13 grants with a stated purpose on Glenn Foundation for Medical's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Medical Research" (13 grants).
Who are Glenn Foundation for Medical's largest grantees?
Glenn Foundation for Medical's largest 2025 grantees include American Federation for Aging Research ($3,898,143), Buck Institute ($1,000,000) and Harvard College ($1,000,000), according to its 2025 IRS Form 990-PF. Together they received 65% of its itemized 2025 grant dollars.
How large is Glenn Foundation for Medical?
Glenn Foundation for Medical reported $189.2M in total assets on its 2025 IRS Form 990-PF. It paid out $9.6M in qualifying distributions that year, against a required minimum of $10.0M (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.
What does Glenn Foundation for Medical fund?
The foundation’s mission is “to extend the healthy years of life through research on mechanisms of biology that govern normal human aging and its related physiological decline, with the objective of translating research into interventions that will extend healthspan with lifespan.” See mission & focus areas ↑
How do I apply for a grant from Glenn Foundation for Medical?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Glenn Foundation for Medical's EIN?
Glenn Foundation for Medical's EIN (Employer Identification Number) is 86-0710305. IRS Form 990 filing data is available on this page for 2021–2025.
Does Glenn Foundation for Medical accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2021 (received by the IRS August 8, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 10, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 13, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS April 18, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 6, 2026)
- IRS filings on file for fiscal years 2021–2025
Explore Open Grants
Browse active grant opportunities in Glenn Foundation for Medical's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Glenn Foundation for Medical funder profile. GrantGraph. Retrieved October 9, 2026, from https://grantable.co/funders/glenn-foundation-for-medical-morg_db8dc1031c4c4aecb0b6a06e910e103c
BibTeX
@misc{grantable_860710305_2026,
author = {{Grantable}},
title = {{Glenn Foundation for Medical funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/glenn-foundation-for-medical-morg_db8dc1031c4c4aecb0b6a06e910e103c},
note = {Accessed 2026-10-09. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Glenn Foundation for Medical'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.
Glenn Foundation for Medical down — hundreds of funders to go?