William Knox Holt Foundation

SAN ANTONIO, TX EIN: 74-6084245

The William Knox Holt Foundation is a private foundation based in San Antonio, Texas, established in 1967. The foundation operates as an independent grantmaking organization focused on supporting educational and cultural institutions.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$4.4M

-5.6% YoY

Annual Giving

$336K

+1.1% YoY

Grant Count

+14.3% YoY

Avg Grant Size

$14K

-11.6% YoY

Under IRS private-foundation payout rules, William Knox Holt Foundation reported a distributable amount of $473K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation provides giving primarily for higher and secondary education in the field of science, with some support also directed toward museums.

Grantmaking

The foundation made 16 grants in 2023.

Grant Range

s & Activity:**

Average Grant

amounts and median grant amounts are tracked but specific figures vary by year

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Geographic Focus

Where this funder awards grants

The foundation focuses its grantmaking in California, Colorado, New York, and Texas.

Grant Distribution by State

Texas $726K (51%)

California $540K (38%)

Colorado $133K (9%)

Missouri $10K (1%)

New Mexico $5K (0%)

States

California Colorado Missouri New Mexico Texas

Cities

AustinBerkeleyCarbondaleGallupKingsvilleLos AngelesMeekerMontereyRedwood CitySan AntonioSherman OaksSt LouisStanfordStockton

Financial History

Multi-year comparison from IRS filings

Assets & Giving (as of most recent filings):

Total assets: $4,353,241 to $4,612,890 (varies by reporting period)
Total giving: $336,000 (2024 data)
Total revenues: $137,104 (2023)
Total expenses: $547,225 (2023)

Income Sources (2023):

Investment income and dividends: $124,346
Net gain from sale of non-inventory assets: $5,608
Miscellaneous revenues: $7,150

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$4,353,241	$4,612,890	$5,011,324
Revenue	$332,039	$137,104	$110,221
Expenses	$591,838	$547,225	$527,694
Qualifying Distributions	$463,782	$465,487	$435,636
Net Investment Income	$203,437	$121,494	$37,677
Distributable Amount	$472,675	$403,718	$433,879

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Grant Size Distribution

98 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Colorado Rocky Mountain School Inc ($50,000), Monterey Bay Aquarium Foundation ($35,000), Just Keep Livin Foundation ($30,000).

Recipient	Purpose	Amount
AUSTIN YMBL SUNSHINE CAMP AUSTIN, TX	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$10,000
CMC FOUNDATION OF CENTRAL TEXAS ST LOUIS, MO	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$10,000
COLORADO ROCKY MOUNTAIN SCHOOL INC CARBONDALE, CO	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$50,000
FILM SOCIETY OF AUSTIN INC AUSTIN, TX	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$7,500
GREATER AUSTIN PERFORMING ARTS CENTER INC AUSTIN, TX	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$5,000
JUST KEEP LIVIN FOUNDATION SHERMAN OAKS, CA	TO FUND AFTER SCHOOL PROGRAMS.	$30,000
MCNAY ART MUSEUM SAN ANTONIO, TX	TO FUND ART-BASED EDUCATION PROGRAMS.	$10,000
MIND SCIENCE FOUNDATION SAN ANTONIO, TX	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$5,000
MOBILE LOAVES & FISHES INC AUSTIN, TX	TO FUND COMMUNITY FIRST VILLAGE PROGRAM.	$20,000
MONTEREY BAY AQUARIUM FOUNDATION MONTEREY, CA	TO FUND ORGANIZATION'S EXEMPT PURPOSE.	$35,000

Leadership & Key People

Leadership team and compensation from IRS filings

Catherine Cooke is listed as a contact person for the foundation.

Compensation Overview

From 2024 IRS filing

From 2024 filing

Name	Title	Hours	Compensation
KATHRYN ATHERTON	DIRECTOR	1	$31,000
GEARY ATHERTON	DIRECTOR	1	$31,000
CATHERINE N COOKE	DIRECTOR	1	$31,000
PETER ATHERTON	DIRECTOR	1	$31,000

Contact Information

Address: 134 Wyckham Rise Street San Antonio, TX 78209-5416

Mailing Address: PO Box 90070 San Antonio, TX 78209

Phone: 210-601-3702

EIN: 74-6084245

Frequently Asked Questions

What does William Knox Holt Foundation fund?

The foundation provides giving primarily for higher and secondary education in the field of science, with some support also directed toward museums.

How do I apply for a grant from William Knox Holt Foundation?

**Grant Sizes & Activity:** • Typical awards range from $1,000 to $50,000 • Total annual giving: approximately $295,450 to $336,000 (based on recent fiscal years) • Average grant amounts and median grant amounts are tracked but specific figures vary by year **Recent Grants (2023):** • Just Keep Livin Foundation: $30,000 (After-School Program) • Monterey Bay Aquarium Foundation: $30,000 (To Fund Organization's Exempt Purpose) • Witte Museum: $30,000 (To Fund Organization's Exempt Purpose) The fo…

Where does William Knox Holt Foundation make grants?

The foundation focuses its grantmaking in California, Colorado, New York, and Texas.

What size grants does William Knox Holt Foundation award?

In 2024, William Knox Holt Foundation awarded 24 grants totaling $336K — an average of about $14K per grant, based on its IRS Form 990 filings.

How much is William Knox Holt Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, William Knox Holt Foundation reported a distributable amount of $473K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.