Winchester School
Winchester School is a private foundation, based in Buffalo, NY. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $444K in total assets. In 2025, it awarded 1 grant totaling $20K. Net investment income was $44K.
Winchester School at a glance
In short: Winchester School gave $20K across 1 grant in 2025 (avg $20K), mostly in New Hampshire. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $19,929
- +4.3% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $19,929
- +4.3% vs 2024
- Median grant
- $19,929
- Total assets
- $443,788
- +4.0% vs 2024
- Primary geography
- New Hampshire (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Winchester School funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Dartmouth College ($20K).
Grant Size Distribution
2 grants across all recorded years
The most common grant size was under $50K: 2 grants of 2 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Winchester School gives
- In 2025 it paid out 104% 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 2024 to 2025, annual grant giving ranged from $19K (2024) to $20K (2025). In 2025 it made 1 grant totaling $20K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Dartmouth College Hanover, NH | General Support | $19,929 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $443,788 | $47,676 | $30,547 | $19,929 | 1 | $26,045 | $44,046 | $25,070 |
| 2024 | $426,673 | $34,833 | $28,352 | $19,101 | 1 | $24,886 | $31,367 | $23,983 |
Under IRS private-foundation payout rules, Winchester School reported a distributable amount of $25K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Winchester School is led by Manufacturers And Traders Trust Com, Trustee on every filing since 2024 — the only officer listed, and compensated.
Officers on the 2025 filing
Manufacturers And Traders Trust Com
Trustee
On filings since 2024
1 hr/week
$8K (2024) → $9K (2025)
Data from IRS Form 990 filings, 2024–2025. "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
The highest reported compensation on the 2025 filing was $9K, to Manufacturers and Traders Trust Com (Trustee).
Frequently asked questions about Winchester School
How much does Winchester School give each year?
Winchester School gave $20K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $19K across 1 grant.
How large is Winchester School?
Winchester School reported $444K in total assets on its 2025 IRS Form 990-PF. It paid out $26K in qualifying distributions that year, against a required minimum of $25K (roughly 5% of its investment assets).
Where does Winchester School operate?
Winchester School has awarded grants in New Hampshire.
What is Winchester School's EIN?
Winchester School's EIN (Employer Identification Number) is 15-6017975. IRS Form 990 filing data is available on this page for 2024–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2024 (received by the IRS November 18, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 11, 2026)
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