William Stephen Tellam Foundation

Private foundation · Grantmaker San Diego, CA EIN: 93-1565366

William Stephen Tellam Foundation is a private foundation, based in San Diego, CA. IRS filing data is available from 2023 through 2025. As of 2025, the organization holds $256K in total assets. In 2025, it awarded 3 grants totaling $45K. Net investment income was $22K.

Key facts about William Stephen Tellam Foundation

In short: William Stephen Tellam Foundation gave $45K across 3 grants in 2025 (avg $15K), mostly in California. Source: 2025 IRS Form 990-PF.

EIN
93-1565366
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$45,000
Grants made (2025)
3
Average grant
$15,000
Median grant
$15,000
Total assets
$256,448
Primary geography
California (100% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$256K

-10.8% YoY

Annual Giving

$45K

Grant Count

3

Avg Grant Size

$15K

Under IRS private-foundation payout rules, William Stephen Tellam Foundation reported a distributable amount of $13K for 2025 — the minimum it must pay out in qualifying distributions.

How William Stephen Tellam Foundation gives

  • In 2025 it paid out 373% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of all 3 itemized 2025 grant dollars.

States

Cities

Del MarEncinitasRamona

Giving Over Time

Total grant dollars and number of grants per year

$0$20K$40K$60K0 grants20230 grants20243 grants2025

In 2025 it made 3 grants totaling $45K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

Coastal Roots Farm: $20KCoastal Roots Farm$20KDon Diego Foundation: $15KDon Diego Foundation$15KHeart & Hooves Therapy: $10KHeart & Hooves Therapy$10K

The largest 2025 recipient was Coastal Roots Farm ($20K). Together the top 3 received $45K.

Grant Size Distribution

3 grants across all recorded years

3<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 3 grants of 3 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Coastal Roots Farm Encinitas, CAGeneral Operations$20,000
Don Diego Foundation Del Mar, CAGeneral Operations$15,000
Heart & Hooves Therapy Ramona, CAGeneral Operations$10,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$100K$200K$300K202320242025
Metric202520242023
Total Assets$256,448$287,579$183,718
Revenue$22,349$108,104$200,592
Expenses$50,628$5,320$16,874
Qualifying Distributions$50,261$5,312$16,874
Net Investment Income$22,080$7,016$592
Distributable Amount$13,461$9,401$1,936

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2023 (received by the IRS August 26, 2024)
  2. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 13, 2025)
  3. Updated Form 990-PF for fiscal year 2025 (received by the IRS April 15, 2026)
  4. IRS filings on file for fiscal years 2023–2025

Leadership & Key People

Officers and directors from IRS filings

William Stephen Tellam Foundation is led by Warren Magill, President since 2024 (on filings since 2023); 1 of 3 officers listed in 2025 is compensated.

Officers on the 2025 filing

  • Warren Magill

    President

    President & CEO → President, 2024

    On filings since 2023

    0.5 hrs/week

    $3K (2023) → $3K (2025)

  • Guy Curtis

    Secretary

    On filings since 2023

    0.5 hrs/week

    No compensation reported

  • Kathryn Starr

    Treasurer

    On filings since 2023

    0.5 hrs/week

    No compensation reported

Data from IRS Form 990 filings, 2023–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Warren Magill — President: $3KWarren MagillPresident$3K

The highest reported compensation on the 2025 filing was $3K, to Warren Magill (President).

Frequently asked questions about William Stephen Tellam Foundation

How much does William Stephen Tellam Foundation give each year?

William Stephen Tellam Foundation gave $45K across 3 grants in 2025, according to its 2025 IRS Form 990-PF.

What is William Stephen Tellam Foundation's typical grant size?

William Stephen Tellam Foundation's median grant in 2025 was $15,000, and its average grant was $15,000, across 3 grants on its 2025 IRS Form 990-PF.

Where does William Stephen Tellam Foundation give grants?

William Stephen Tellam Foundation gives mostly in California: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there.

Does William Stephen Tellam Foundation give general operating support?

Yes: 100% of William Stephen Tellam Foundation's 2025 grants with a stated purpose (3 of 3) were for general or operating support, per its 2025 IRS Form 990-PF.

How large is William Stephen Tellam Foundation?

William Stephen Tellam Foundation reported $256K in total assets on its 2025 IRS Form 990-PF. It paid out $50K in qualifying distributions that year, against a required minimum of $13K (roughly 5% of its investment assets).

What is William Stephen Tellam Foundation's EIN?

William Stephen Tellam Foundation's EIN (Employer Identification Number) is 93-1565366. IRS Form 990 filing data is available on this page for 2023–2025.

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

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