Christy and John Mack Foundation
Grantmaking foundation in Rye, New York · EIN 13-3746731
- Grants itemized on the 990
- $3.9MTax year 2025
- Grants made
- 4Tax year 2025
- Total assets
- $2.6MLatest reported
- Latest IRS filing
- 2025Form 990 / 990-PF
Giving by year
Totals by tax year, rounded to two significant figures. Years without a reported total show the sum of grants itemized on the filing.
Top recipients
| Recipient | Amount | Tax year |
|---|---|---|
| Healthy US Collaborative Inc | $3M | 2025 |
| Microsociety Inc | $580K | 2025 |
| Fair Play | $250K | 2025 |
| Sea Corps Maritime Group | $20K | 2025 |
Amounts are rounded. The full grantee list (4 grants in 2025) is available with a free account.
See the full profile. All grants with amounts and years, board and officers, contact details, giving patterns and your organization's fit score are available with a free GrantAuthority account.
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Source: IRS Form 990 and 990-PF filings, tax year 2025. Also see this organization on ProPublica Nonprofit Explorer.