Mary C O'Brien Charitable Trust
Mary C O'Brien Charitable Trust is a private foundation, based in Boston, MA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $539K in total assets. In 2025, it awarded 4 grants totaling $40K. Net investment income was $11K.
Mary C O'Brien Charitable Trust at a glance
In short: Mary C O'Brien Charitable Trust gave $40K across 4 grants in 2025 (avg $10K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $39,760
- +4.1% vs 2024
- Grants made (2025)
- 4
- +0.0% vs 2024
- Average grant
- $9,940
- +4.1% vs 2024
- Median grant
- $9,940
- Total assets
- $538,580
- -5.3% vs 2024
- 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 September 2026.
Who Mary C O'Brien Charitable Trust funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was United Way of Greater ($10K). Together the top 4 received $40K.
Grant Size Distribution
21 grants across all recorded years
The most common grant size was under $50K: 21 grants of 21 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
States
Cities
How Mary C O'Brien Charitable Trust gives
- Giving held roughly steady from 2022 to 2025 (+17%). Method
- In 2025 it paid out 102% 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 2025, annual grant giving ranged from $33K (2021) to $40K (2025). In 2025 it made 4 grants totaling $40K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| United Way of Greater Boston, MA | General Purposes | $9,940 |
| St Mary Catholic Church Taunton, MA | General Purposes | $9,940 |
| St Anthony's Parish Mattapoisett, MA | General Purposes | $9,940 |
| Taunton High School Taunton, MA | General Purposes | $9,940 |
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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 | $538,580 | $23,314 | $53,189 | $39,760 | 4 | $41,230 | $11,418 | $40,277 |
| 2024 | $568,455 | $26,670 | $50,390 | $38,188 | 4 | $39,658 | $17,455 | $36,814 |
| 2023 | $592,176 | $25,647 | $47,623 | $34,944 | 4 | $36,344 | $13,001 | $35,373 |
| 2022 | $614,152 | $42,649 | $48,140 | $34,056 | 4 | $35,491 | $29,362 | $42,225 |
| 2021 | $619,643 | $6,944 | $44,642 | $32,843 | 5 | — | $1,687 | $37,422 |
| 2020 | $657,773 | $19,478 | $49,934 | $37,920 | 5 | — | $7,216 | $35,846 |
Under IRS private-foundation payout rules, Mary C O'Brien Charitable Trust reported a distributable amount of $40K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mary C O'Brien Charitable Trust's 2025 filing lists 2 officers; 1 of 2 officers listed in 2025 is compensated.
Officers on the 2025 filing
Fiduciary Trust Company
Trustee
On filings since 2020
$11K (2020) → $12K (2025)
Stephen R. Hoye
Trustee
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 $12K, to Fiduciary Trust Company (Trustee).
Frequently asked questions about Mary C O'Brien Charitable Trust
How much does Mary C O'Brien Charitable Trust give each year?
Mary C O'Brien Charitable Trust gave $40K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $38K across 4 grants.
What is Mary C O'Brien Charitable Trust's typical grant size?
Mary C O'Brien Charitable Trust's median grant in 2025 was $9,940, and its average grant was $9,940, across 4 grants on its 2025 IRS Form 990-PF.
Where does Mary C O'Brien Charitable Trust give grants?
Mary C O'Brien Charitable Trust 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 Taunton, MA (2 grants).
Does Mary C O'Brien Charitable Trust give general operating support?
Yes: 100% of Mary C O'Brien Charitable Trust's 2025 grants with a stated purpose (4 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.
How large is Mary C O'Brien Charitable Trust?
Mary C O'Brien Charitable Trust reported $539K in total assets on its 2025 IRS Form 990-PF. It paid out $41K in qualifying distributions that year, against a required minimum of $40K (roughly 5% of its investment assets).
What is Mary C O'Brien Charitable Trust's EIN?
Mary C O'Brien Charitable Trust's EIN (Employer Identification Number) is 04-6404073. IRS Form 990 filing data is available on this page for 2020–2025.
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 2020–2025
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