Tinker Island Foundation
Tinker Island Foundation is a private foundation, based in Boston, MA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $26.6M in total assets. In 2024, it awarded 2 grants totaling $785K. Net investment income was $19.1M.
Tinker Island Foundation at a glance
In short: Tinker Island Foundation gave $785K across 2 grants in 2024 (avg $393K), mostly in Ohio. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $785,000
- -21.5% vs 2023
- Grants made (2024)
- 2
- +0.0% vs 2023
- Average grant
- $392,500
- -21.5% vs 2023
- Median grant
- $392,500
- Total assets
- $26,648,607
- +255.7% vs 2023
- Primary geography
- Ohio (64% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
Who Tinker Island Foundation funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2024
The largest 2024 recipient was Fidelity Charitable Gift Fund ($500K). Together the top 2 received $785K.
Grant Size Distribution
10 grants across all recorded years
The most common grant size was in the $250–500K range: 3 grants of 10 (30%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 2 itemized grants.
States
Cities
How Tinker Island Foundation gives
- Giving fell 71% from 2021 to 2024. Method
- In 2024 it paid out 68% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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 2024, annual grant giving ranged from $785K (2024) to $2.8M (2021). In 2024 it made 2 grants totaling $785K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Fidelity Charitable Gift Fund Cincinnati, OH | Program Development | $500,000 |
| Now and There Inc Boston, MA | Program Development | $285,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $26,648,607 | $23,251,680 | $1,052,904 | $785,000 | 2 | $802,035 | $19,097,932 | $1,179,760 |
| 2023 | $7,492,752 | $15,062,314 | $1,092,511 | $1,000,000 | 2 | $1,013,301 | $5,890,825 | $916,226 |
| 2022 | $1,044,140 | $2,528,737 | $2,466,372 | $2,450,000 | 2 | $2,458,128 | $74,527 | $1,051,487 |
| 2021 | $1,076,371 | $294,806 | $2,765,215 | $2,752,906 | 3 | $2,759,699 | $290,195 | $2,267,246 |
| 2020 | $985,294 | $149,943 | $2,086,925 | $2,075,000 | 1 | — | $65,085 | $2,750,483 |
Under IRS private-foundation payout rules, Tinker Island Foundation reported a distributable amount of $1.2M for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Tinker Island Foundation is led by Edward C. Johnson IV, President & Secretary since 2023 (on filings since 2020); 1 of 2 officers listed in 2024 is compensated.
Officers on the 2024 filing
Edward C. Johnson IV
President & Secretary
Treasurer & Director → President, Treasurer & Secretary, 2022
President, Treasurer & Secretary → President & Secretary, 2023
On filings since 2020
0.5 hrs/week
No compensation reported
Daniel M. Ardito
Treasurer
On filings since 2023
1 hr/week
$2K (2023) → $5K (2024)
Former officers (1)
- Former: M. Allison Johnson (2020–2021) — President & Director
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $5K, to Daniel M Ardito (Treasurer).
Frequently asked questions about Tinker Island Foundation
How much does Tinker Island Foundation give each year?
Tinker Island Foundation gave $785K across 2 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $1.0M across 2 grants.
How large is Tinker Island Foundation?
Tinker Island Foundation reported $26.6M in total assets on its 2024 IRS Form 990-PF. It paid out $802K in qualifying distributions that year, against a required minimum of $1.2M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
Where does Tinker Island Foundation operate?
Tinker Island Foundation has awarded grants in Massachusetts, New York, Ohio.
What is Tinker Island Foundation's EIN?
Tinker Island Foundation's EIN (Employer Identification Number) is 47-3423358. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 10, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 14, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 10, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS October 28, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 4, 2025)
- IRS filings on file for fiscal years 2020–2024
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Browse active grant opportunities in Tinker Island Foundation's focus areas in our free grants database
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