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THE WILLIAM & PHYLLIS MACK FAMILY

WATER MILL, NY EIN 22-3512719 Philanthropy & GrantmakingT21 501C3 PRIVATE FOUNDATION
$3.5M
Revenue
5
Filings
$16.8M
Total Grants
180
Grant Records
Latest Financial Summary
Fiscal Year Revenue Expenses Net Assets Contributions
FY 2024 $3.5M $3.3M $763K $3.4M
Full Financial History
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Key Officers
W
WILLIAM MACK
TRUSTEE
P
PHYLLIS MACK
TRUSTEE
R
RICHARD MACK
TRUSTEE
Executive Compensation
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Top Grant Recipients (Teaser)
UNIVERSITY OF PENNSYLVANIA $2.0M
UNIVERSITY OF PENNSYLVANIA $2.0M
UNIVERSITY OF PENNSYLVANIA $2.0M
180 total grants · $16.8M total giving
Complete Grants Database
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Filing History
IRS990PF
FY 2024
990PF
FY 2023
990PF
FY 2022
990PF
FY 2021
Period ended 2021-12-31
990PF
FY 2020
Period ended 2020-12-31
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