Data / Foundation grants / The Carlos & Marguerite Mason FDN
The Carlos & Marguerite Mason FDN: 10 grants to organizations, $5.1 million (tax year ended December 2024)
The Carlos & Marguerite Mason FDN, a private foundation in Saint Louis, MO, paid 10 grants to organizations totaling $5,100,000 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on October 10, 2025. The largest was $2,050,000 to Georgia Transplant Foundation Inc in Roswell, GA for financial assistance.
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- EIN
- 581996431
- Based in
- Saint Louis, MO
- Assets
- $127,385,778
- Grants paid
- $5,100,000
- Tax year ended
- December 2024
Grants paid, tax year ended December 2024
From the Form 990-PF filed October 10, 2025, IRS object ID 202522839349101002. It reported $5,100,000 in grants paid; 10 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Georgia Transplant Foundation Inc | Roswell, GA | Financial assistance | Health care | $2,050,000 | apps.irs.gov |
| University of Georgia Research Foundatio | Athens, GA | General support | $650,000 | apps.irs.gov | |
| Atlanta Ronald McDonald House Charities | Atlanta, GA | Adopt a family program | $500,000 | apps.irs.gov | |
| Childrens Healthcare of Atlanta Inc | Atlanta, GA | General operating | Health care | $500,000 | apps.irs.gov |
| Emory University | Atlanta, GA | General operating | $400,000 | apps.irs.gov | |
| Childrens Healthcare of Atlanta | Atlanta, GA | Various healthcare programs | Health care | $350,000 | apps.irs.gov |
| The Georgia Health Sciences Foundation | New York, NY | General operating | $250,000 | apps.irs.gov | |
| Angel Flight Soars Inc | Chamblee, GA | General support | $150,000 | apps.irs.gov | |
| Augusta University Foundation Inc | Augusta, GA | General operating | $150,000 | apps.irs.gov | |
| Enduring Hearts Inc | Marietta, GA | General operating | Diseases, disorders and medical disciplines | $100,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Health care | $2,900,000 |
| Diseases, disorders and medical disciplines | $100,000 |
States funded
Also on SpecStream
Updated October 10, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.