The Carlos & Marguerite Mason Fdn
The Carlos and Marguerite Mason Trust is a private foundation based in Saint Louis, Missouri. The trust operates with a specific charitable mission focused on improving healthcare outcomes for residents in need.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$102.8M
+7.5% YoY
Annual Giving
$5.1M
+10.9% YoY
Grant Count
10
+42.9% YoY
Avg Grant Size
$510K
-22.4% YoY
Under IRS private-foundation payout rules, The Carlos & Marguerite Mason Fdn reported a distributable amount of $6.0M for 2024 — the minimum it must pay out in qualifying distributions.
Mission & Focus Areas
The trust's mission is to improve the process of organ transplantation for needy Georgia residents. The foundation distributes grants to 501(c)(3) organizations located in Georgia that provide financial assistance to needy Georgia residents requiring transplants of eyes, kidneys, hearts, and other human organs.
Up to 25% of the trust's income may be used for researching methods of improving the transplant of eyes, kidneys, hearts, and other human organs.
Grantmaking
Typical grant awards range from $30,000 to $2,300,000.
Grant Range
s & Types**
Review Cycle
June 30
How to Apply
**
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Geographic Focus
Where this funder awards grants
Georgia
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
- Total Assets: $102,787,299
- Total Annual Giving: $5,100,000
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $102,787,299 | $95,648,375 | $97,455,056 |
| Revenue | $13,533,889 | $5,026,160 | $3,346,492 |
| Expenses | $6,319,849 | $5,510,866 | $6,649,690 |
| Qualifying Distributions | $5,534,784 | $4,992,972 | $6,107,194 |
| Net Investment Income | $12,757,850 | $4,289,195 | $2,616,184 |
| Distributable Amount | $5,957,371 | $5,433,310 | $5,577,046 |
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
44 grants across all recorded years
Open Grants
1 open opportunity from The Carlos & Marguerite Mason Fdn
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Georgia Transplant Foundation Inc ($2,050,000), University of Georgia Research Foundatio ($650,000), Childrens Healthcare of Atlanta Inc ($500,000).
| Recipient | Purpose | Amount |
|---|---|---|
| CHILDRENS HEALTHCARE OF ATLANTA INC ATLANTA, GA | GENERAL OPERATING | $500,000 |
| THE GEORGIA HEALTH SCIENCES FOUNDATION NEW YORK, NY | GENERAL OPERATING | $250,000 |
| ENDURING HEARTS INC MARIETTA, GA | GENERAL OPERATING | $100,000 |
| EMORY UNIVERSITY ATLANTA, GA | GENERAL OPERATING | $400,000 |
| ATLANTA RONALD MCDONALD HOUSE CHARITIES ATLANTA, GA | ADOPT A FAMILY PROGRAM | $500,000 |
| UNIVERSITY OF GEORGIA RESEARCH FOUNDATIO ATHENS, GA | GENERAL SUPPORT | $650,000 |
| ANGEL FLIGHT SOARS INC CHAMBLEE, GA | GENERAL SUPPORT | $150,000 |
| CHILDRENS HEALTHCARE OF ATLANTA ATLANTA, GA | VARIOUS HEALTHCARE PROGRAMS | $350,000 |
| GEORGIA TRANSPLANT FOUNDATION INC ROSWELL, GA | FINANCIAL ASSISTANCE | $2,050,000 |
| AUGUSTA UNIVERSITY FOUNDATION INC AUGUSTA, GA | GENERAL OPERATING | $150,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| WELLS FARGO BANK N A | TRUSTEE | 1 | $499,673 |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does The Carlos & Marguerite Mason Fdn fund?
The trust's mission is to improve the process of organ transplantation for needy Georgia residents. The foundation distributes grants to 501(c)(3) organizations located in Georgia that provide financial assistance to needy Georgia residents requiring transplants of eyes, kidneys, hearts, and other human organs. Up to 25% of the trust's income may be used for researching methods of improving the transplant of eyes, kidneys, hearts, and other human organs.
How do I apply for a grant from The Carlos & Marguerite Mason Fdn?
**Grant Sizes & Types** Typical grant awards range from $30,000 to $2,300,000. The trust considers the following types of support: • Capital improvements such as buildings, furniture, equipment, and alterations to existing structures • Start-up grants to new projects and programs addressing critical needs in patient financial challenges associated with solid organ transplantation • Challenge or matching grant proposals **Application Process** Annual application deadline: June 30 **Trustee** Wel…
Where does The Carlos & Marguerite Mason Fdn make grants?
Georgia
What size grants does The Carlos & Marguerite Mason Fdn award?
In 2024, The Carlos & Marguerite Mason Fdn awarded 10 grants totaling $5.1M — an average of about $510K per grant, based on its IRS Form 990 filings.
How much is The Carlos & Marguerite Mason Fdn required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, The Carlos & Marguerite Mason Fdn reported a distributable amount of $6.0M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is The Carlos & Marguerite Mason Fdn's EIN?
The Carlos & Marguerite Mason Fdn's EIN (Employer Identification Number) is 58-1996431. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in The Carlos & Marguerite Mason Fdn's focus areas in our free grants database
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Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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