Steven Prewitt Skull Base is a private foundation focused on Medical Research, based in San Diego, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $640K in total assets. In 2024, it awarded 5 grants totaling $43K. Net investment income was $6K.
Key facts about Steven Prewitt Skull Base
- EIN
- 26-1442469
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $42,500
- Grants made (2024)
- 5
- Average grant
- $8,500
- Median grant
- $7,500
- Total assets
- $640,284
- Primary geography
- California (100% of itemized 2024 grant dollars)
Data from IRS Form 990-PF, 2024; updated September 2026.
Who Steven Prewitt Skull Base funds
By grant dollars, the top recipient states for Steven Prewitt Skull Base's 5 itemized 2024 grants were California (100%). The most frequent recipient cities were San Diego, CA (3 grants). 20% of grants with a stated purpose were for general or operating support. Recurring purposes include "Charitable" (4 grants).
How Steven Prewitt Skull Base gives
- Giving grew 25% from 2021 to 2024. Method
- In 2024 it paid out 134% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Next steps with Steven Prewitt Skull Base
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Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$640K
-2.7% YoY
Annual Giving
$43K
+21.4% YoY
Grant Count
5
+400.0% YoY
Avg Grant Size
$9K
-75.7% YoY
Under IRS private-foundation payout rules, Steven Prewitt Skull Base reported a distributable amount of $32K for 2024 — the minimum it must pay out in qualifying distributions.
About Steven Prewitt Skull Base
Based on IRS filings
Steven Prewitt Skull Base is a private foundation focused on Medical Research, based in San Diego, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $640K in total assets. In 2024, it awarded 5 grants totaling $43K. Net investment income was $6K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 5 itemized 2024 grant dollars.
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $640,284 | $657,917 | $684,817 |
| Revenue | $33,451 | $28,293 | $34,284 |
| Expenses | $70,052 | $40,271 | $40,216 |
| Qualifying Distributions | $42,500 | $35,000 | $33,000 |
| Net Investment Income | $5,899 | $23,022 | $1,934 |
| Distributable Amount | $31,665 | $31,861 | $33,173 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2024
Grant Size Distribution
11 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest recipients include Scripps Mercy Hospital Foundation ($15,000), San Diego Auto Museum ($10,000), SD Space Air Museum ($7,500).
| Recipient | Purpose | Amount |
|---|---|---|
| SCRIPPS MERCY HOSPITAL FOUNDATION San Diego, CA | CHARITABLE | $15,000 |
| SAN DIEGO AUTO MUSEUM San Diego, CA | CHARITABLE | $10,000 |
| SD SPACE AIR MUSEUM San Diego, CA | CHARITABLE | $7,500 |
| SPIRIT OF LIBERTY FOUNDATION Rancho Santa Fe, CA | GENERAL | $5,000 |
| UC SAN DIEGO FOUNDATION La Jolla, CA | CHARITABLE | $5,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
No officer or director reported compensation in the available filings.
From 2024 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Perry Mansfield | Chair | 4 | — |
| Michael Oleary | Board Member | 1 | — |
| Jim Kiderick | Board Member | 1 | — |
| Bobbi Bennett | Board Member Treasurer | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Steven Prewitt Skull Base?
Steven Prewitt Skull Base is a private foundation focused on Medical Research, based in San Diego, CA. It holds $640K in total assets as of 2024.
How large is Steven Prewitt Skull Base?
As of 2024, Steven Prewitt Skull Base holds $640K in total assets with $33K in annual revenue. It awarded 5 grants totaling $43K in 2024.
Where does Steven Prewitt Skull Base operate?
Steven Prewitt Skull Base has awarded grants in California.
What size grants does Steven Prewitt Skull Base award?
In 2024, Steven Prewitt Skull Base awarded 5 grants totaling $43K — an average of about $9K per grant, based on its IRS Form 990 filings.
How much is Steven Prewitt Skull Base required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Steven Prewitt Skull Base reported a distributable amount of $32K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Steven Prewitt Skull Base's EIN?
Steven Prewitt Skull Base's EIN (Employer Identification Number) is 26-1442469. IRS Form 990 filing data is available on this page for 2020–2024.
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Data last updated September 2026. Sourced from IRS Form 990-PF filings.