Matsunaga Charitable Foundation
Matsunaga Charitable Foundation is a private foundation, based in Honolulu, HI. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $93K in total assets. In 2025, it awarded 2 grants totaling $8K. Net investment income was $6K.
Matsunaga Charitable Foundation at a glance
In short: Matsunaga Charitable Foundation gave $8K across 2 grants in 2025 (avg $4K), mostly in Hawaii. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $8,300
- +116.9% vs 2024
- Grants made (2025)
- 2
- -33.3% vs 2024
- Average grant
- $4,150
- +225.4% vs 2024
- Median grant
- $4,150
- Total assets
- $92,891
- -6.6% vs 2024
- Primary geography
- Hawaii (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 Matsunaga Charitable Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was National Kidney Foundation ($3K).
Organizations only. It also paid 1 grant to individuals ($5,000), which are not listed by name.
Grant Size Distribution
8 grants across all recorded years
The most common grant size was under $50K: 8 grants of 8 (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 Matsunaga Charitable Foundation gives
- Giving held roughly steady from 2022 to 2025 (−2%). Method
- In 2025 it paid out 136% 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 $200 (2020) to $9K (2022). In 2025 it made 2 grants totaling $8K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| 1 grant to individuals Recipients not named | — | $5,000 |
| National Kidney Foundation Honolulu, HI | Cash Contribution | $3,300 |
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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 | $92,891 | $9,813 | $16,377 | $8,300 | 2 | $8,550 | $6,432 | $6,287 |
| 2024 | $99,455 | $14,381 | $14,339 | $3,826 | 3 | $3,826 | $8,059 | $5,855 |
| 2023 | $99,413 | $8,888 | $10,353 | $5,126 | 2 | $5,126 | $5,752 | $5,279 |
| 2022 | $100,878 | $7,983 | $9,515 | $8,500 | 1 | $8,500 | $7,652 | $5,720 |
| 2021 | $102,410 | $22,117 | $8,571 | — | — | — | $16,910 | $7,267 |
| 2020 | $88,864 | $6,915 | $2,693 | $200 | 1 | — | $6,726 | $5,634 |
Under IRS private-foundation payout rules, Matsunaga Charitable Foundation reported a distributable amount of $6K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Matsunaga Charitable Foundation is led by Matthew M. Matsunaga, President, Treasurer, Secretary & Director on every filing since 2020; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Matthew M. Matsunaga
President, Treasurer, Secretary & Director
On filings since 2020
2 hrs/week
No compensation reported
Guillaume D. Maman
Chairman, Vice President & Director
On filings since 2020
0.3 hrs/week
No compensation reported
Hannah H. Matsunaga
Director
On filings since 2020
0.3 hrs/week
No compensation reported
Sarah M. Matsunaga
Director
On filings since 2020
0.3 hrs/week
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 Matsunaga Charitable Foundation
How much does Matsunaga Charitable Foundation give each year?
Matsunaga Charitable Foundation gave $8K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $4K across 3 grants.
How large is Matsunaga Charitable Foundation?
Matsunaga Charitable Foundation reported $93K in total assets on its 2025 IRS Form 990-PF. It paid out $9K in qualifying distributions that year, against a required minimum of $6K (roughly 5% of its investment assets).
Where does Matsunaga Charitable Foundation operate?
Matsunaga Charitable Foundation has awarded grants in Hawaii.
What is Matsunaga Charitable Foundation's EIN?
Matsunaga Charitable Foundation's EIN (Employer Identification Number) is 99-0290102. 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 August 25, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Matsunaga Charitable Foundation's focus areas in our free grants database
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