Shirley Shattuck Windsor Charitable Tr UA 121697 15012344

Private foundation · Grantmaker Boston, MA EIN: 04-6851595

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 is a private foundation based in Boston, Massachusetts. Its filing states that it makes grants to qualified charitable organizations, with an emphasis on preventing cruelty to animals and relieving the poor, distressed, or underprivileged.

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 at a glance

In short: Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 gave $360K across 16 grants in 2025 (avg $23K), mostly in Massachusetts. 36% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$360,000
+10.8% vs 2024
Grants made (2025)
16
-11.1% vs 2024
Average grant
$22,500
+24.6% vs 2024
Median grant
$12,500
Total assets
$2,921,825
+0.7% vs 2024
New grantees (estimate)
36% first-time grantees (5 of 14, 2025; small sample)
Primary geography
Massachusetts (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to Shirley Shattuck Windsor Charitable Tr UA 121697 15012344

How to Apply

The filing says the foundation does not restrict giving to preselected organizations. It lists Wendy S Holding as the contact; the filing gives no further details on the application process. Awards are restricted to qualified charitable organizations, with an emphasis on—but not limited to—the prevention of cruelty to animals or relief of the poor, distressed, or underprivileged.

Contact

Application contact: Wendy S Holding
Mailing address: C/O Loring Wolcott Coolidge 230, Congress Street, Boston, MA 02110
Phone: (617) 523-6531

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Eastern Bank No New England Wildlife Center: $135KEastern Bank No New EnglandWildlife Center$135KDakin Humane Society: $40KDakin Humane Society$40KCharles River Alleycats Inc: $35KCharles River Alleycats Inc$35KMSPCA: $35KMSPCA$35KHere Today Adopted Tomorrow: $21KHere Today Adopted Tomorrow$21KBerkshire Humane Society: $15KBerkshire Humane Society$15KLowell Humane Society: $15KLowell Humane Society$15KPaws Wakefield: $15KPaws Wakefield$15KBaypath Humane Society of Hopkinton Inc FBO to Support Dogs and Cats: $10KBaypath Humane Society ofHopkinton Inc FBO to Support…$10KFriends of Marblehead Abandoned Animals FBO to Support Cats in Lynn: $8KFriends of MarbleheadAbandoned Animals FBO to…$8K

The largest 2025 recipient was Eastern Bank No New England Wildlife Center ($135K). Together the top 10 received $329K.

Organizations only. It also paid 3 grants to individuals ($16,500), which are not listed by name.

Grant Size Distribution

91 grants across all recorded years

86<$50K2$50–100K3$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 86 grants of 91 (95%).

Geographic Focus

Where this funder awards grants

All reported 2025 grant dollars went to recipients in Massachusetts. The listed grants include organizations serving communities such as Boston, Brockton, Springfield, and Pittsfield.

Grant Distribution by State

1state

Share of 2025 grant dollars across all 16 itemized grants.

Cities

BostonScituateBrimfieldJamaica PlainLowellN GraftonNatickSpringfieldTyngsboroughWakefieldS WeymouthWatertownWeymouthEast BrookfieldGloucesterLincolnMelroseOrleansPittsfieldCanton

Is Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 open to new grantees?

36%

first-time grantees, 2025

In 2025, 5 of 14 grantees (36%) were first-time recipients. With only 14 grantees, that is a small sample: one grantee more or less moves the share by about 7 points. First grants averaged $35K; repeat grants $21K. How we count

Medians: $10K first-time, $15K repeat.

  • 64% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+4%). Method
  • In 2025 it paid out 101% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K$400K18 grants2019 32 grants2020 19 grants2021 18 grants2022 20 grants2023 18 grants2024 16 grants2025

From 2019 to 2025, annual grant giving ranged from $249K (2019) to $362K (2023). In 2025 it made 16 grants totaling $360K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Eastern Bank No New England Wildlife Center Weynmouth, MAGeneral Fund$135,000
Dakin Humane Society Springfield, MATo Support the Kitten Street Team Program$40,000
Charles River Alleycats Inc Boston, MAAssist with Work in Brockton, Massachusetts$35,000
MSPCA Boston, MASpay/neuter program cats from roxbury, dorchester, mattapan and hyde park$35,000
Here Today Adopted Tomorrow Brimfield, MATo Fund Spay/Neuter Services for 200 Cats$21,000
Berkshire Humane Society Pittsfield, MAGeneral$15,000
Lowell Humane Society Lowell, MAHelp Fund the Outside Testing Cost for Animals$15,000
Paws Wakefield Wakefield, MATo fund medical needs of cats and dogs in the wakefield and north of boston area$15,000
Baypath Humane Society of Hopkinton Inc FBO to Support Dogs and Cats Hopkinton, MAGeneral Fund$10,000
3 grants to individuals Recipients not named —$16,500
Your AI grants department

Ready to take the next step with Shirley Shattuck Windsor Charitable Tr UA 121697 15012344?

Fully replaces Grant database subscriptions Instrumentl · Foundation Directory · GrantStation & similar

Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$2,921,825$443,847$423,223$360,00016$371,303$397,806$367,162
2024$2,901,201$383,362$390,178$325,00018$335,986$335,665$374,569
2023$2,908,017$300,211$417,000$362,48220$370,551$250,226$329,401
2022$3,024,806$96,603$405,728$347,00018$357,499$44,800$332,558
2021$3,333,931$376,721$386,123$310,00019$320,801$331,888$400,078
2020$3,343,333$872,991$348,998$291,50032—$831,179$319,088
2019$2,819,340$353,614$295,397$248,50018—$317,454$298,363

Under IRS private-foundation payout rules, Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 reported a distributable amount of $367K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated October 2026.

Mission & Focus Areas

No separate mission statement for the foundation is provided. Its filing describes eligible organizations as qualified charities, with an emphasis on—but not limited to—animal-cruelty prevention and relief for people who are poor, distressed, or underprivileged.

The grantees’ own descriptions illustrate the kinds of organizations it has supported. Berkshire Humane Society says its mission is to provide compassionate care, treatment, and placement for companion animals and improve animal welfare through education and outreach. Lowell Humane Society says it provides shelter, prevents cruelty, and advocates for animal welfare. An individual recipient says it helps feral, stray, homeless, and injured cats through spaying or neutering and placement. Second Chance Animal Services describes providing temporary shelter, supporting spay/neuter programs, and offering veterinary services.

Grantmaking

In filing year 2025, the foundation reported 16 grants totaling $360,000. Grants ranged from $1,500 to $135,000, with a median grant of $12,500.

The largest reported grant was $135,000 to Eastern Bank No New England Wildlife Center for its general fund. Other large grants included $40,000 to Dakin Humane Society for its Kitten Street Team program; $35,000 to Charles River Alleycats to assist with work in Brockton; and $35,000 to MSPCA for a spay/neuter program serving cats from Roxbury, Dorchester, Mattapan, and Hyde Park. The foundation also awarded $21,000 to Here Today Adopted Tomorrow for spay/neuter services for 200 cats. Other 2025 recipients included Berkshire Humane Society and Lowell Humane Society, each with $15,000, and an individual recipient, with $10,000.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Wendy S Holding and David Cuetos as trustees.

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's 2025 filing lists 2 officers; all 2 officers listed in 2025 are compensated.

Officers on the 2025 filing

  • Wendy S. Holding

    Trustee

    On filings since 2019

    1 hr/week

    $10K (2019) → $14K (2025)

  • David Cuetos

    Trustee

    On filings since 2022

    1 hr/week

    $11K (2024) → $14K (2025)

Former officers (3)
  • Former: William Andrew Mims Resigning (2022–2023) — Trustee
  • Former: William Andrew Mims (2020–2021) — Trustee
  • Former: Gilbert M. Roddy Jr. (2019–2020) — Trustee

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

Wendy S Holding — Trustee: $14KWendy S HoldingTrustee$14KDavid Cuetos — Trustee: $14KDavid CuetosTrustee$14K

The highest reported compensation on the 2025 filing was $14K, to Wendy S Holding (Trustee). 2 officers or directors reported compensation on that filing.

Frequently asked questions about Shirley Shattuck Windsor Charitable Tr UA 121697 15012344

How much does Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 give each year?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 gave $360K across 16 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $325K across 18 grants.

What is Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's typical grant size?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's median grant in 2025 was $12,500, and its average grant was $22,500, across 16 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 that year got $35K on average.

Where does Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 give grants?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 gives mostly in Massachusetts: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Boston, MA (2 grants).

Does Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 give general operating support?

Yes: 50% of Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's 2025 grants with a stated purpose (8 of 16) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's largest grantees?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's largest 2025 grantees include Eastern Bank No New England Wildlife Center ($135,000), Dakin Humane Society ($40,000) and Charles River Alleycats Inc ($35,000), according to its 2025 IRS Form 990-PF. It also paid 3 grants to individuals ($16,500), which are not listed by name. Together they received 58% of its itemized 2025 grant dollars.

How large is Shirley Shattuck Windsor Charitable Tr UA 121697 15012344?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 reported $2.9M in total assets on its 2025 IRS Form 990-PF. It paid out $371K in qualifying distributions that year, against a required minimum of $367K (roughly 5% of its investment assets).

What does Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 fund?

No separate mission statement for the foundation is provided. Its filing describes eligible organizations as qualified charities, with an emphasis on—but not limited to—animal-cruelty prevention and relief for people who are poor, distressed, or underprivileged. See mission & focus areas ↑

How do I apply for a grant from Shirley Shattuck Windsor Charitable Tr UA 121697 15012344?

The filing says the foundation does not restrict giving to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's EIN?

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's EIN (Employer Identification Number) is 04-6851595. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 6, 2025)
  2. Updated Form 990-PF for fiscal year 2025 (received by the IRS May 1, 2026)
  3. Added Form 990-PF for fiscal year 2019 (received by the IRS July 13, 2020)
  4. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 12, 2021)
  5. Added Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
  6. Updated Form 990-PF for fiscal year 2022 (received by the IRS June 21, 2023)
  7. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 10, 2024)

Explore Open Grants

Browse active grant opportunities in Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's focus areas in our free grants database

Similar Funders

Funders that support many of the same organizations

Morse Martha Foundation CS Marshall ESQ

Wilmington, DE

The foundation’s 2024 grants supported animal-welfare organizations, including wildlife rehabilitation centers, humane societies, and shelters, with listed recipients in Maine and Massachusetts. It made 27 grants totaling $314,000, averaging about $11,630; listed awards ranged from $5,000 to $200,000. It gives only to preselected charitable organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$3.6M

Grants

27

Total Given

$314K

Paul W Dimaura Charitable Trust

Boston, MA

Assets

$926K

Grants

30

Total Given

$86K

Arbella Insurance Foundation

Boston, MA

The Arbella Insurance Foundation supports social justice, housing and homelessness, immigration, health and human services, education, and the arts, primarily in New England, with most 2024 grant dollars going to Massachusetts. Its 201 grants in 2024 totaled about $2.23 million; awards ranged from $28 to $152,319, with a median of $2,000. The profile does not state whether it accepts unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$22.2M

Grants

201

Total Given

$2.2M

Traynor Family Foundation

Wilmington, DE

Assets

$203K

Grants

60

Total Given

$73K

Foundation M

Andover, MA

Foundation M funds charitable organizations across areas including conservation, reproductive health, animal welfare, media, and human services, with most 2025 grant dollars going to Massachusetts, followed by New York. Its 2025 grants ranged from $3,000 to $50,000, with a median of $9,000. It funds only preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$16.0M

Grants

93

Total Given

$922K

AbbVie Foundation

North Chicago, IL

The AbbVie Foundation funds health equity, access to care, cancer care, community health, and related community-led programs through partnerships and employee initiatives. Its 2025 grants ranged from $8,000 to $15 million, with a median of $25,000; it supports work worldwide, with the largest share of recent grants going to Illinois. It makes grants only to preselected organizations and does not accept unsolicited requests.

Philanthropy, Voluntarism & Grantmaking

Assets

$265.6M

Grants

65

Total Given

$47.1M

More similar funders

More Funders in Massachusetts

Cite this profile

Grantable. (2026). Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 funder profile. GrantGraph. Retrieved October 5, 2026, from https://grantable.co/funders/shirley-shattuck-windsor-charitable-tr-ua-121697-15012344-morg_ef687d2c598f4328b2ec29adc75bd47f

BibTeX
@misc{grantable_046851595_2026,
  author       = {{Grantable}},
  title        = {{Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/shirley-shattuck-windsor-charitable-tr-ua-121697-15012344-morg_ef687d2c598f4328b2ec29adc75bd47f},
  note         = {Accessed 2026-10-05. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from Shirley Shattuck Windsor Charitable Tr UA 121697 15012344's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

Shirley Shattuck Windsor Charitable Tr UA 121697 15012344 down — hundreds of funders to go?

Want AI to do this for you?