Groton School
Groton School's mission is to inspire lives of character, scholarship, leadership, and service within a diverse, inclusive, and close-knit community.
Groton School at a glance
In short: Groton School gave $215K across 2 grants in 2025 (avg $108K), mostly in Massachusetts. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $215,000
- -2.3% vs 2024
- Grants made (2025)
- 2
- +0.0% vs 2024
- Average grant
- $107,500
- -2.3% vs 2024
- Median grant
- $107,500
- Total assets
- $703,509,165
- +5.0% vs 2024
- Primary geography
- Massachusetts (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Groton School funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Town of Groton ($215K across 2 grants).
Grant Size Distribution
10 grants across all recorded years
The most common grant size was under $50K: 5 grants of 10 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
States
Cities
How Groton School gives
- Giving held roughly steady from 2022 to 2025 (+0%). Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $145K (2019) to $220K (2024). In 2025 it made 2 grants totaling $215K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Town of Groton Groton, MA | The contribution was made to help the Town of Groton subsidize their annual operating costs. | $205,000 |
| Town of Groton Groton, MA | To Promote and preserve the town through the Destination Groton Gift Fund. | $10,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $703,509,165 | $66,947,623 | $58,297,149 | $215,000 | 2 | $25,758,591 |
| 2024 | $670,317,540 | $71,557,927 | $55,348,732 | $220,000 | 2 | $27,055,423 |
| 2023 | $636,973,139 | $54,693,070 | $55,058,708 | $190,000 | 1 | $12,429,408 |
| 2022 | $623,393,279 | $61,768,419 | $54,908,675 | $216,000 | 3 | $24,818,816 |
| 2021 | $639,928,563 | $71,039,183 | $54,862,923 | $159,000 | 2 | $27,443,226 |
| 2020 | $519,152,774 | $50,710,312 | $51,159,807 | $150,000 | 1 | $12,610,045 |
| 2019 | $544,767,407 | $57,003,989 | $50,262,937 | $145,000 | 1 | $17,598,320 |
About Groton School
Based on IRS filings
Groton School is a public charity focused on Education, based in Groton, MA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $703.5M in total assets. In 2025, it awarded 2 grants totaling $215K. Net investment income was $25.8M.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Groton School is led by Benjamin N Pyne, President since 2021 (on filings since 2019); 7 of 33 officers listed in 2025 are compensated.
Officers on the 2025 filing
Benjamin N Pyne
President
Board Member → President, 2021
On filings since 2019
4 hrs/week
No compensation reported
Ian Gracey
Director of Admissions
On filings since 2019
50 hrs/week
$172K (2019) → $198K (2025)
John MacEachern
Director of Development
On filings since 2019
50 hrs/week
$281K (2019) → $490K (2025)
Harold W Anderson III
Assistant Headmaster
On filings since 2019
50 hrs/week
$162K (2019) → $216K (2025)
Temba Maqubela
Headmaster
On filings since 2019
60 hrs/week
$461K (2019) → $690K (2025)
John Herlihy
Chief Financial Officer
Chief Financial Officer - Started → Chief Financial Officer, 2025
On filings since 2024
50 hrs/week
$49K (2024) → $329K (2025)
James Raney
Controller & Deputy CFO
New on the 2025 filing
50 hrs/week
$217K (2025)
John T Conner
Teacher & Dean of Faculty
New on the 2025 filing
50 hrs/week
$201K (2025)
Ann Gildroy Fox
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Gary C Hill
Vice President
Board Member → Vice President, 2021
On filings since 2019
4 hrs/week
No compensation reported
Grace Song Park
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Monica Spencer Green
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Nancy Yang
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Nicholas F Burgin
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Stacey Clover Symonds
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Thomas Varkey
Board Member
On filings since 2019
4 hrs/week
No compensation reported
William B Gray
Board Member
On filings since 2019
4 hrs/week
No compensation reported
William C Vrattos
Board Member
On filings since 2019
4 hrs/week
No compensation reported
Charles S Duggan
Secretary
Board Member → Secretary, 2024
On filings since 2020
4 hrs/week
No compensation reported
Merrill Stubbs Dorman
Board Member
On filings since 2020
4 hrs/week
No compensation reported
Nathaniel A Bristol
Treasurer
Board Member → Treasurer, 2024
On filings since 2020
4 hrs/week
No compensation reported
Alfred Winkler
Board Member
On filings since 2021
4 hrs/week
No compensation reported
David Porter
Board Member
On filings since 2021
4 hrs/week
No compensation reported
Ellen Boiselle
Board Member
On filings since 2021
4 hrs/week
No compensation reported
Allison Chin Hays
Board Member
On filings since 2022
4 hrs/week
No compensation reported
Kevin M Griffith
Board Member
On filings since 2022
4 hrs/week
No compensation reported
Adam Monroe Spence
Board Member
On filings since 2023
4 hrs/week
No compensation reported
Alexander Lowell Thorndike
Board Member
On filings since 2023
4 hrs/week
No compensation reported
Chandler Bass Evans
Board Member
On filings since 2023
4 hrs/week
No compensation reported
Rachel E Slack
Board Member
On filings since 2023
4 hrs/week
No compensation reported
Andrew K Ferrer
Board Member
New on the 2025 filing
4 hrs/week
No compensation reported
Fatima V Sanandaji
Board Member
New on the 2025 filing
4 hrs/week
No compensation reported
Maryam A M Mujica
Board Member
New on the 2025 filing
4 hrs/week
No compensation reported
Former officers (26)
- Former: David Altshuler (2019–2024) — Board Member
- Former: Diana S Ferguson (2019–2024) — Board Member
- Former: Julie Dolan (2020–2024) — Chief Financial Officer - Retired
- Former: Kun Deng (2022–2024) — Board Member
- Former: Kimberly A Gerighty (2024) — Director of Parent Programs
- Former: Vuyelwa Maqubela (2024) — Teacher & Advisor to Head of School
- Former: Peter C Erichsen (2019–2023) — Secretary
- Former: Maureen Oneil Britt (2023) — Health Center Director
- Former: Michael F ODonnell (2023) — Dean of Students
- Former: Elizabeth Preston (2019–2022) — Chief Technology Officer
- Former: Grant A Gund (2019–2022) — Board Member
- Former: Rachel E Diamond (2019–2022) — Board Member
- Former: Megan Harlan (2020–2022) — Assistant Headmaster
- Former: Crista Gannon (2021–2022) — Board Member
- Former: Ann Bakewell Woodward (2019–2021) — Board Member
- Former: Diana V Chigas (2019–2021) — Board Member
- Former: Alexander Robert Krapf (2019–2020) — Board Member
- Former: Arthur Diaz (2019–2020) — Chief Financial Officer - Retired
- Former: James H R Windels (2019–2020) — Vice President
- Former: John R S Jacobsson (2019–2020) — Board Member
- Former: Jonathan D Klein (2019–2020) — President
- Former: Lydia T Cottrell (2019–2020) — Board Member
- Former: Andrea N Picott (2019) — Board Member
- Former: D D Willard Gardiner Jr. (2019) — Board Member
- Former: Elizabeth Lawrence (2019) — Development Leadership Gift Officer
- Former: Franz F Colloredo Mansfeld (2019) — Board Member
Data from IRS Form 990 filings, 2019–2025. "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 $690K, to Temba Maqubela (Headmaster). 7 officers or directors reported compensation on that filing.
Frequently asked questions about Groton School
How much does Groton School give each year?
Groton School gave $215K across 2 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $220K across 2 grants.
How large is Groton School?
Groton School reported $703.5M in total assets on its 2025 IRS Form 990. Its revenue that year was $66.9M.
What is Groton School?
Groton School is a public charity focused on Education, based in Groton, MA. It holds $703.5M in total assets as of 2025.
Where does Groton School operate?
Groton School has awarded grants in Massachusetts, New York.
What is Groton School's EIN?
Groton School's EIN (Employer Identification Number) is 04-2104265. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS May 11, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS May 6, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS May 12, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS May 15, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS May 12, 2025)
- Added Form 990 for fiscal year 2019 (received by the IRS May 26, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS May 12, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Groton School funds
Education Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Groton School's focus areas in our free grants database
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Groton School down — hundreds of funders to go?