The William & Phyllis Mack Family

FORT LEE, NJ EIN: 22-3512719

Financial Overview

From 2024 IRS Form 990-PF

Total Assets

$5.9M

+3.8% YoY

Annual Giving

$3.2M

-42.7% YoY

Grant Count

53

-3.6% YoY

Avg Grant Size

$61K

-40.5% YoY

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Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$2M$3M$5M$6M20202021202220232024
Metric202420232022
Total Assets$5,878,187$5,661,018$5,912,274
Revenue$3,523,372$5,490,738$4,698,087
Expenses$3,306,352$5,750,166$4,500,486
Qualifying Distributions$3,213,882$5,608,596$4,376,780
Net Investment Income$38,474$50,310$575,568
Distributable Amount$5,254$5,818$9,677

Giving Over Time

Total grant dollars and number of grants per year

$0$1M$3M$4M$6M36 grants202035 grants202146 grants202255 grants202353 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

GUGGENHEIM MUSEUM$820KNORTHWELL HEALTH FOUNDAT…$788KUJA FEDERATION OF NEW YORK$300KJEWISH FEDERATION OF PAL…$151KAMERICAN FRIENDS OF THE …$130KPARK AVENUE SYNAGOGUE$110KBEIT RUTH$100KKRAVIS CENTER FOR THE PE…$100KTHE JEWISH MUSEUM$95K92Y$67K

Grant Size Distribution

225 grants across all recorded years

172<$50K22$50–100K14$100–250K4$250–500K7$500K–1M6$1–5M$5M+

Giving History

Grant recipients and amounts by year

No grants recorded for .

Who else does The William & Phyllis Mack Family fund?

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Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
WILLIAM MACKTRUSTEE
PHYLLIS MACKTRUSTEE
RICHARD MACKTRUSTEE
STEPHEN MACKTRUSTEE

Geographic Focus

Where this funder has awarded grants

Grant Distribution by State

11states
+3 more states

Cities

AventuraBethlehemBoca RatonBostonBronxBrooklynDuarteEast HamptonGreenvaleHartfordHempsteadIndianapolisIslandiaJerichoKingstonLong Island CityLos AngelesMelvilleMiami GardensNew Hyde Park

Data last updated March 2026. Sourced from IRS Form 990-PF filings.

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