Data / Foundation grants / Christy and John Mack Foundation
Christy and John Mack Foundation: 4 grants to organizations, $3.9 million (tax year ended December 2025)
Christy and John Mack Foundation, a private foundation in Purchase, NY, paid 4 grants to organizations totaling $3,882,000 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on May 6, 2026. The largest was $3,030,000 to Healthy Us Collaborative Inc in Washington, DC for general purpose or educational.
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- EIN
- 133746731
- Based in
- Purchase, NY
- Assets
- $18,924,606
- Grants paid
- $3,882,000
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed May 6, 2026, IRS object ID 202641269349101504. It reported $3,882,000 in grants paid; 4 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Healthy Us Collaborative Inc | Washington, DC | General purpose or educational | Health care | $3,030,000 | apps.irs.gov |
| Microsociety Inc | Philadelphia, PA | General purpose or educational | $582,000 | apps.irs.gov | |
| Fair Play | Boston, MA | General purpose or educational | $250,000 | apps.irs.gov | |
| Sea Corps Maritime Group | Mount Pleasant, SC | General purpose or educational | $20,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed August 21, 2025, IRS object ID 202542339349100409. It reported $4,982,000 in grants paid; 4 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Healthy Us Collaborative Inc | Washington, DC | General purpose or educational | Health care | $3,800,000 | apps.irs.gov |
| Nyc Police Foundation | New York, NY | General purpose or educationaldescription of contributed property: 9,900 shares ms stockbook value of contribution property: 9,900 shares ms stock $99method used to determine the book value: cost basi | $995,445 | apps.irs.gov | |
| Microsociety Inc | Philadelphia, PA | General purpose or educational | $182,000 | apps.irs.gov | |
| Nyc Police Foundation | New York, NY | General purpose or educational | $4,555 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Health care | $6,830,000 |
States funded
| Recipient state | Granted |
|---|---|
| District of Columbia | $6,830,000 |
| New York | $1,000,000 |
| Pennsylvania | $764,000 |
| Massachusetts | $250,000 |
| South Carolina | $20,000 |
Also on SpecStream
Updated May 6, 2026. 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.