Private Foundation

NANCY AND GEOFFREY STACK FAMILY FOUNDATION

Based in NEWPORT BEACH, CA, NANCY AND GEOFFREY STACK FAMILY FOUNDATION operates as a Private Foundation. The organization reported $1.2M in revenue, $1.1M in expenses, $2.7M in total assets for fiscal year 2025. Imperigo tracks 225 reported grants from this foundation totaling approximately $13.1M.

EIN: 711019812 NEWPORT BEACH, CA Private Independent Foundations NTEE: T22 Latest filing: 2025
Total Revenue$1.2M
Total Expenses$1.1M
Total Assets$2.7M
Grants Given225
Grant Total$13.1M
Filing Years2020–2025

Sample Grants Given

UC SAN DIEGO FOUNDATION
LA JOLLA, CA · 2025
GENERAL SUPPORT
$825,000
CYSTINOSIS RESEARCH FOUNDATION
IRVINE, CA · 2025
GENERAL SUPPORT
$100,000
LAURA'S HOUSE
LADERA RANCH, CA · 2025
GENERAL SUPPORT
$50,000
GEORGETOWN UNIVERSITY SCHOLARSHIP
WASHINGTON, DC · 2025
GENERAL SUPPORT
$25,000
ACHIEVE
SAN FRANCISCO, CA · 2025
GENERAL SUPPORT
$25,000

Showing up to 5 of 225 total records — full history available with membership.

Officers & Directors

Trustee Geoffrey L Stack
Trustee Nancy Stack

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Support
$13,140,450 225 grants

Financial Trends

Year Revenue Expenses Assets
2025 $1.2M $1.1M $2.7M
2024 $2.3M $3.3M $2.5M
2023 $2.6M $1.6M $3.5M
2022 $2.1M $2.1M $2.1M
2020 $1.3M $1.3M $2.3M

Between 2020 and 2025, reported annual revenue declined from $1.3M to $1.2M (-4%), with total assets most recently reported at $2.7M.

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, ID, IL, MA, MT, and 3 other states.

CADCIDILMAMTNYPAVA

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

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