Mark W Leinonen and Patricia S Leinonen
Mark W Leinonen and Patricia S Leinonen is a private foundation, based in Scarborough, ME. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $34K in total assets. In 2025, it awarded 2 grants totaling $6K. Net investment income was $4K.
Mark W Leinonen and Patricia S Leinonen at a glance
In short: Mark W Leinonen and Patricia S Leinonen gave $6K across 2 grants in 2025 (avg $3K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $6,000
- +100.0% vs 2024
- Grants made (2025)
- 2
- +0.0% vs 2024
- Average grant
- $3,000
- +100.0% vs 2024
- Median grant
- $3,000
- Total assets
- $33,907
- -9.6% vs 2024
- Primary geography
- Massachusetts (67% 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 Mark W Leinonen and Patricia S Leinonen funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
The largest 2025 recipient was The Barkley Fund (Tufts University) ($4K). Together the top 2 received $6K.
Grant Size Distribution
10 grants across all recorded years
The most common grant size was under $50K: 10 grants of 10 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
States
Cities
How Mark W Leinonen and Patricia S Leinonen gives
- Giving grew 50% from 2022 to 2025. Method
- In 2025 it paid out 142% 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 $2K (2020) to $6K (2025). In 2025 it made 2 grants totaling $6K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The Barkley Fund (Tufts University) N Grafton, MA | To Help Support the Organizations Ongoing Mission | $4,000 |
| Best Friends Animal Society Kanab, UT | To Help Support the Organizations Ongoing Mission | $2,000 |
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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 | $33,907 | $5,904 | $9,490 | $6,000 | 2 | $7,410 | $3,824 | $5,213 |
| 2024 | $37,493 | $2,091 | $6,353 | $3,000 | 2 | $4,275 | $13 | $5,506 |
| 2023 | $41,755 | $2,552 | $7,526 | $3,000 | 2 | $4,897 | — | $5,205 |
| 2022 | $46,729 | $1,801 | $12,086 | $4,000 | 2 | $7,704 | — | $5,690 |
| 2021 | $57,014 | $14,344 | $8,527 | $5,000 | 2 | $6,437 | $12,254 | $5,849 |
| 2020 | $83,641 | $6,479 | $4,994 | $2,000 | 2 | — | $4,573 | $6,864 |
Under IRS private-foundation payout rules, Mark W Leinonen and Patricia S Leinonen reported a distributable amount of $5K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mark W Leinonen and Patricia S Leinonen is led by Mark W. Leinonen, President & Director on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Mark W. Leinonen
President & Director
On filings since 2020
No compensation reported
Patricia S. Leinonen
Treasurer & Director
On filings since 2020
No compensation reported
Patricia Wood Whittemore
Director
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.
Frequently asked questions about Mark W Leinonen and Patricia S Leinonen
How much does Mark W Leinonen and Patricia S Leinonen give each year?
Mark W Leinonen and Patricia S Leinonen gave $6K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $3K across 2 grants.
How large is Mark W Leinonen and Patricia S Leinonen?
Mark W Leinonen and Patricia S Leinonen reported $34K in total assets on its 2025 IRS Form 990-PF. It paid out $7K in qualifying distributions that year, against a required minimum of $5K (roughly 5% of its investment assets).
Where does Mark W Leinonen and Patricia S Leinonen operate?
Mark W Leinonen and Patricia S Leinonen has awarded grants in Massachusetts, Utah.
What is Mark W Leinonen and Patricia S Leinonen's EIN?
Mark W Leinonen and Patricia S Leinonen's EIN (Employer Identification Number) is 20-1768092. 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
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS July 14, 2026)
- IRS filings on file for fiscal years 2020–2024
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