Christy and John Mack Foundation
At a glance
This funder does not accept unsolicited applications. The foundation chooses the organisations it funds itself.
Key takeaways
- The foundation makes contributions only to organisations it has preselected and does not accept unsolicited requests, so a small charity should not send a cold application and should look for an introduction first.
- If an introduction is possible, present the work under its stated themes of education, healthcare and youth development; the filing states no geographic focus, so area alone should not rule a charity in or out.
- The median grant was about $280,000, and about 8 in 10 grants fell between $15,000 and $1,500,000, so a request should be sized with that spread in mind.
- In the latest filing, all of its grant dollars went to organisations it had also funded in earlier filings, so approaching it for a first grant is unlikely to succeed, and organisations outside its preselected group should not apply.
Overview
Christy and John Mack Foundation is a US private foundation based in Purchase, NY.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and web pages about the foundation (myrye.com, healthyuscollaborative.org), with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
The foundation is described as making grants across education, healthcare and youth development. Its president’s profile characterises the approach as strategic philanthropy and links the family foundation with healthcare funding and leadership. The filings show grants to charitable organisations, while the recorded purposes are general-purpose or educational rather than detailed descriptions of distinct programmes. Thus the available material presents a mix of cause areas alongside an approach characterised by strategic healthcare philanthropy; it does not describe a narrower recipient class or geographic grantmaking area.
Themes
- Education
- Healthcare
- Youth development
Geographic Focus
No geographic focus is stated; the filings show grants mainly in District of Columbia, New York, California, Minnesota and South Carolina.
How to apply
The foundation makes contributions only to preselected charitable organisations and does not accept unsolicited requests; the filing gives no submission route or further application steps.
Application success factors
- Repeat giving: In its TY2024 filing, 100% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 23 grants to organisations were about $280,000 or less.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
1 other state: 2%
- The largest single recipient received 47% of grant dollars to organisations.
- In tax year 2024, 100% of grant dollars went to organisations Christy and John Mack Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
- 24% of grant dollars went to intermediaries that regrant to other organisations.
Grants
The largest grants to organisations in the foundation’s latest filing:
- Healthy US Collaborative · General purpose or educational$3,800,0002024 tax year
- Nyc Police Foundation · 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$995,4452024 tax year
- MicroSociety · General purpose or educational$182,0002024 tax year
- Nyc Police Foundation · General purpose or educational$4,5552024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Christy K Mack — President
- John J Mack — Director
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $7,072,741 | $7,027,000 | $10,738,311 | Filing for 2022 tax year |
| 2023 tax year | $3,726,538 | $3,662,000 | $13,528,829 | Filing for 2023 tax year |
| 2024 tax year | $5,070,672 | $4,982,000 | $15,536,503 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
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At a glance

Applying to Christy and John Mack Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Purchase, NY

Applying to Christy and John Mack Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- Purchase, NY