The C Stephen and Frances B Foster
The C Stephen and Frances B Foster is a private foundation, based in Weston, MA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $1.7M in total assets. In 2024, it awarded 2 grants totaling $145K. Net investment income was $242K.
The C Stephen and Frances B Foster at a glance
In short: The C Stephen and Frances B Foster gave $145K across 2 grants in 2024 (avg $73K), mostly in Massachusetts. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $145,000
- +74.7% vs 2023
- Grants made (2024)
- 2
- +0.0% vs 2023
- Average grant
- $72,500
- +74.7% vs 2023
- Median grant
- $72,500
- Total assets
- $1,696,049
- +4.2% vs 2023
- Primary geography
- Massachusetts (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who The C Stephen and Frances B Foster funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2024
The largest 2024 recipient was Ocular Inflammation and Uveitis Foundation ($125K). Together the top 2 received $145K.
Grant Size Distribution
8 grants across all recorded years
The most common grant size was under $50K: 3 grants of 8 (38%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 2 itemized grants.
States
Cities
How The C Stephen and Frances B Foster gives
- In 2024 it paid out 157% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $25K (2022) to $250K (2020). In 2024 it made 2 grants totaling $145K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Ocular Inflammation and Uveitis Foundation Waltham, MA | To Support Research | $125,000 |
| MGH Endowment Boston, MA | To Support Research | $20,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $1,696,049 | $230,657 | $161,676 | $145,000 | 2 | $145,000 | $242,375 | $92,125 |
| 2023 | $1,627,068 | $90,053 | $101,569 | $83,000 | 2 | $83,000 | $67,604 | $88,520 |
| 2022 | $1,638,584 | $-48,126 | $45,227 | $25,000 | 1 | $25,000 | $5,886 | $83,008 |
| 2021 | $1,733,703 | $101,977 | $20,263 | — | — | — | $83,045 | $101,120 |
| 2020 | $1,659,178 | $109,000 | $267,201 | $250,000 | 3 | — | $92,997 | $92,865 |
Under IRS private-foundation payout rules, The C Stephen and Frances B Foster reported a distributable amount of $92K for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The C Stephen and Frances B Foster is led by C. Stephen Foster MD, President on every filing since 2020; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
C. Stephen Foster MD
President
On filings since 2020
5 hrs/week
No compensation reported
Frances B. Foster RN
Treasurer & Clerk
On filings since 2020
5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The C Stephen and Frances B Foster
How much does The C Stephen and Frances B Foster give each year?
The C Stephen and Frances B Foster gave $145K across 2 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $83K across 2 grants.
How large is The C Stephen and Frances B Foster?
The C Stephen and Frances B Foster reported $1.7M in total assets on its 2024 IRS Form 990-PF. It paid out $145K in qualifying distributions that year, against a required minimum of $92K (roughly 5% of its investment assets).
Where does The C Stephen and Frances B Foster operate?
The C Stephen and Frances B Foster has awarded grants in Massachusetts, North Carolina.
What is The C Stephen and Frances B Foster's EIN?
The C Stephen and Frances B Foster's EIN (Employer Identification Number) is 04-2776591. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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