The Mathenaeum Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in WILMINGTON, DE. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $10.0M in total assets. In 2024, it awarded 12 grants totaling $534K. Net investment income was $443K.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$10.0M
+0.9% YoY
Annual Giving
$534K
-29.2% YoY
Grant Count
12
-33.3% YoY
Avg Grant Size
$44K
+6.1% YoY
Under IRS private-foundation payout rules, The Mathenaeum Foundation reported a distributable amount of $475K for 2024 — the minimum it must pay out in qualifying distributions.
About The Mathenaeum Foundation
Based on IRS filings
The Mathenaeum Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in WILMINGTON, DE. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $10.0M in total assets. In 2024, it awarded 12 grants totaling $534K. Net investment income was $443K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $10,019,132 | $9,926,875 | $9,677,793 |
| Revenue | $668,833 | $1,042,839 | $123,195 |
| Expenses | $576,576 | $793,757 | $345,046 |
| Qualifying Distributions | $568,226 | $788,077 | $444,496 |
| Net Investment Income | $442,923 | $427,659 | $140,071 |
| Distributable Amount | $475,032 | $571,124 | $788,553 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
46 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Stony Brook Foundation Inc ($100,000), Math Cultural Center of Chicago ($91,597), Every Org ($72,000).
| Recipient | Purpose | Amount |
|---|---|---|
| EVERY ORG SAN FRANCISCO, CA | The Prison Math Project | $72,000 |
| GIRLS ANGLE INC CAMBRIDGE, MA | General & Unrestricted | $15,000 |
| MATH CULTURAL CENTER OF CHICAGO CHICAGO, IL | General & Unrestricted | $91,597 |
| MATHEMATICAL ASSOCIATION OF AMERICA INCORPORATED WASHINGTON, DC | anonymous support of Project NExT fellows | $15,000 |
| SEATTLE UNIVERSAL MATH MUSEUM SEATTLE, WA | General & Unrestricted | $10,000 |
| SEATTLE UNIVERSAL MATH MUSEUM SEATTLE, WA | to support the development and operation of in-house programs to serve the local community | $30,000 |
| SEATTLE UNIVERSAL MATH MUSEUM SEATTLE, WA | Executive Director Employment Fund | $25,000 |
| SOCIETY FOR SCIENCE AND THE PUBLIC WASHINGTON, DC | to support mathematics coverage in Science News, broadly along the lines of the Society for Science proposal to the Mathenaeum Foundation | $60,000 |
| SOCIETY FOR SCIENCE AND THE PUBLIC WASHINGTON, DC | to support mathematics coverage in Science News | $25,000 |
| ST LAWRENCE UNIVERSITY CANTON, NY | to support the Illustration Apprenticeships program of Illustration as a Mathematical Research Technique semester, with St. Lawrence University as Financial Administrator | $50,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Glen T Whitney | Pres, Dir, Sec | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is The Mathenaeum Foundation?
The Mathenaeum Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in WILMINGTON, DE. It holds $10.0M in total assets as of 2024.
How large is The Mathenaeum Foundation?
As of 2024, The Mathenaeum Foundation holds $10.0M in total assets with $669K in annual revenue. It awarded 12 grants totaling $534K in 2024.
Where does The Mathenaeum Foundation operate?
The Mathenaeum Foundation has awarded grants in Arizona, California, District of Columbia, Georgia, Illinois, Massachusetts, North Carolina, New Jersey, New York, Ohio, Texas, Washington.
What size grants does The Mathenaeum Foundation award?
In 2024, The Mathenaeum Foundation awarded 12 grants totaling $534K — an average of about $44K per grant, based on its IRS Form 990 filings.
How much is The Mathenaeum Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, The Mathenaeum Foundation reported a distributable amount of $475K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is The Mathenaeum Foundation's EIN?
The Mathenaeum Foundation's EIN (Employer Identification Number) is 26-3372190. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in The Mathenaeum Foundation's focus areas in our free grants database
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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