Private Foundation

MUNGER CHARITABLE TRUST NUMBER THREE C/O WILLIAM H BORTHWICK

Based in PASADENA, CA, MUNGER CHARITABLE TRUST NUMBER THREE C/O WILLIAM H BORTHWICK operates as a Private Foundation. The organization reported $128.4M in revenue, $51.7M in expenses, $109.0M in total assets for fiscal year 2025. Imperigo tracks 16 reported grants from this foundation totaling approximately $51.8M.

EIN: 276085495 PASADENA, CA Latest filing: 2025

Total Revenue$128.4M

Total Expenses$51.7M

Total Assets$109.0M

Grants Given16

Grant Total$51.8M

Filing Years2021–2025

Sample Grants Given

PASADENA COMMUNITY FOUNDATION

PASADENA, CA · 2024

(1) DESCRIPTION: 64 SHARES OF BERKSHIRE HATHAWAY CLASS A SECURITIES (2) BOOK VALUE: $39,082,752 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 03/20/2025 (6) PURPOSE: GENERAL OPERATING SUPPORT

$50,571,712

PASADENA COMMUNITY FOUNDATION

PASADENA, CA · 2024

(1) DESCRIPTION: 1 SHARE OF BERKSHIRE HATHAWAY CLASS A SECURITIES (2) BOOK VALUE: $610,668 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 12/17/2024 (6) PURPOSE: GENERAL OPERATING SUPPORT

$681,596

PASADENA COMMUNITY FOUNDATION

PASADENA, CA · 2024

(1) DESCRIPTION: 910 SHARES OF BERKSHIRE HATHAWAY CLASS B SECURITIES (2) BOOK VALUE: $403,588 (3) METHOD USED TO DETERMINE BOOK VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE RECEIVED BY THE FOUNDATION. (4) METHOD USED TO DETERMINE FAIR MARKET VALUE: AVERAGE OF THE HIGH/LOW ON THE DATE THE SECURITIES WERE DONATED. (5) DATE OF THE GIFT: 12/17/2024 (6) PURPOSE: GENERAL OPERATING SUPPORT

$413,449

POLYTECHNIC SCHOOL

PASADENA, CA · 2023

GENERAL SUPPORT

$12,000

WESTRIDGE SCHOOL

PASADENA, CA · 2023

GENERAL SUPPORT

$12,000

Showing up to 5 of 16 total records — full history available with membership.

Officers & Directors

TRUSTEE William H Borthwick

Officer compensation and complete director data available with membership.

Top Grant Purposes

$50,571,712 1 grant

$681,596 1 grant

$413,449 1 grant

GENERAL SUPPORT

$139,500 13 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$128.4M	$51.7M	$109.0M
2024	$25K	$26K	$110K
2023	$23K	$28K	$111K
2022	$17K	$23K	$117K
2021	$15K	$21K	$123K

Between 2021 and 2025, reported annual revenue grew from $15K to $128.4M (+845582%), with total assets most recently reported at $109.0M.

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

Grant Geography

Grants from this foundation were reported to recipients in CA.

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

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