Private Foundation

CHRISTY AND JOHN MACK FOUNDATION

CHRISTY AND JOHN MACK FOUNDATION is a Private Foundation headquartered in PURCHASE, NY. Financial data from the 2025 filing: $9.4M revenue, $3.9M expenses, $2.3M total assets. IRS filings disclose 42 grants awarded by this foundation, totaling roughly $24.1M.

EIN: 133746731 PURCHASE, NY Latest filing: 2025

Total Revenue$9.4M

Total Expenses$3.9M

Total Assets$2.3M

Grants Given42

Grant Total$24.1M

Filing Years2020–2025

Sample Grants Given

HEALTHY US COLLABORATIVE INC

WASHINGTON, DC · 2025

GENERAL PURPOSE OR EDUCATIONAL

$3,030,000

MICROSOCIETY INC

PHILADELPHIA, PA · 2025

GENERAL PURPOSE OR EDUCATIONAL

$582,000

FAIR PLAY

BOSTON, MA · 2025

GENERAL PURPOSE OR EDUCATIONAL

$250,000

SEA CORPS MARITIME GROUP

MOUNT PLEASANT, SC · 2025

GENERAL PURPOSE OR EDUCATIONAL

$20,000

HEALTHY US COLLABORATIVE INC

WASHINGTON, DC · 2024

GENERAL PURPOSE OR EDUCATIONAL

$3,800,000

Showing up to 5 of 42 total records — full history available with membership.

Officers & Directors

PRESIDENT Christy K Mack

DIRECTOR John J Mack

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL PURPOSE OR EDUCATIONAL

$22,102,086 40 grants

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

$995,445 1 grant

GENERAL PURPOSE OR EDUCATIONALDESCRIPTION OF CONTRIBUTED PROPERTY: (1) 35,190 SHARES PALANTIR TECHNOLOGIES INC CL A (2) 9,000 SHARES VENTYX BIOSCIENCES INCBOOK VALUE OF CONTRIBUTION PROPERTY: (1) 35,190 SHARES PALANTIR TECHNOLOGIES INC CL A $123,516.90 (2) 9,000 SHARES VENTYX BIOSCIENCES INC $ 3,240.00 METHOD USED TO DETERMINE THE BOOK VALUE: COST BASISMETHOD USED TO DETERMINE FAIR MARKET VALUE: TREASURY REGULATIONS SECTION 20.2031-2DATE OF THE GIFTS: AUGUST 3, 2023

$987,469 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2025	$9.4M	$3.9M	$2.3M
2024	$7.2M	$5.1M	$2.4M
2023	$7.2M	$3.7M	$2.6M
2022	$9.7M	$7.1M	$1.5M
2020	$4.1M	$4.5M	$2.9M

Between 2020 and 2025, reported annual revenue grew from $4.1M to $9.4M (+128%), with total assets most recently reported at $2.3M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, DC, IL, KY, MA, MN, and 4 other states.

CADCILKYMAMNNCNYPASC

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for CHRISTY AND JOHN MACK FOUNDATION

Complete financials, all 42 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports