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.
Key facts about Winchester School
In short: Winchester School gave $20K across 1 grant in 2025 (avg $20K), mostly in New Hampshire. Source: 2025 IRS Form 990-PF.
- EIN
- 15-6017975
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $19,929
- Grants made (2025)
- 1
- Average grant
- $19,929
- Median grant
- $19,929
- Total assets
- $443,788
- Primary geography
- New Hampshire (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
$444K
+4.0% YoY
Annual Giving
$20K
+4.3% YoY
Grant Count
1
+0.0% YoY
Avg Grant Size
$20K
+4.3% YoY
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.
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.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 1 itemized 2025 grant dollars.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2025
Grant Size Distribution
2 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| DARTMOUTH COLLEGE Hanover, NH | GENERAL SUPPORT | $19,929 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 |
|---|---|---|
| Total Assets | $443,788 | $426,673 |
| Revenue | $47,676 | $34,833 |
| Expenses | $30,547 | $28,352 |
| Qualifying Distributions | $26,045 | $24,886 |
| Net Investment Income | $44,046 | $31,367 |
| Distributable Amount | $25,070 | $23,983 |
Data update history
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)
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
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.
Here's the math on researching Winchester School by hand.
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