Healthy US Collaborative Inc
Washington, DC
$3.8MTax year 2024
General purpose or educational
Foundation directory
Christy and John Mack Foundation Grants
Private foundation · EIN 13-3746731 · IRS 990-PF filings through tax year 2025
Future commitments are grants the foundation has reported but not yet paid.
How to apply
This foundation reports on its 990-PF that it only makes contributions to preselected organizations and does not accept unsolicited applications.
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Original filing text
Reported organization name: CHRISTY AND JOHN MACK FOUNDATION
Giving by tax year
Year-level totals across every reported grant in this profile — a summary, not a filter. The awards further down are the largest individual grants across all years, not each year's complete list.
| Tax year | Grants paid | Amount |
|---|---|---|
| 2025 | 4 | $3.9M |
| 2024 | 4 | $5M |
Where Christy and John Mack Foundation gives
States of grant recipients reported on the foundation's 990-PF filings, by dollars received.
Largest reported grants
Historical awards reported to the IRS. These are examples of past giving, not open opportunities.
Healthy US Collaborative Inc
Washington, DC
$3MTax year 2025
General purpose or educational
Nyc Police Foundation
New York, NY
$995.4KTax year 2024
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 basismethod used to determine fair market value: treasury regulations section 20.2031-2date of the gifts: July 8, 2024
Microsociety Inc
Philadelphia, PA
$582KTax year 2025
General purpose or educational
Fair Play
Boston, MA
$250KTax year 2025
General purpose or educational
Showing 5 of the 8 largest grants (8 reported in all).
See all 8 grants from Christy and John Mack Foundation: sort and filter by purpose, state and year.
Start freeAbout this data
Figures are aggregated from Christy and John Mack Foundation's IRS Form 990-PF electronic filings (2 filings on file, most recent tax year 2025). Totals reflect grants the foundation reported as paid, and can lag the current year because foundations file annually and often on extension. Source: IRS 990-PF filing on ProPublica. Raw e-file archive (ZIP) — a large IRS yearly archive download.
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