Mark & Jannie Wu Family Fdn
Mark & Jannie Wu Family Fdn is a private foundation, based in Pennington, NJ. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $947K in total assets. In 2025, it awarded 4 grants totaling $46K. Net investment income was $124K.
Mark & Jannie Wu Family Fdn at a glance
In short: Mark & Jannie Wu Family Fdn gave $46K across 4 grants in 2025 (avg $12K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $46,250
- +12.8% vs 2024
- Grants made (2025)
- 4
- +33.3% vs 2024
- Average grant
- $11,563
- -15.4% vs 2024
- Median grant
- $8,625
- Total assets
- $947,252
- +7.5% vs 2024
- Primary geography
- California (89% 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 & Jannie Wu Family Fdn funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Eastside College Prep School Inc ($24K). Together the top 4 received $46K.
Grant Size Distribution
20 grants across all recorded years
The most common grant size was under $50K: 20 grants of 20 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
Cities
How Mark & Jannie Wu Family Fdn gives
- Giving held roughly steady from 2022 to 2025 (−17%). Method
- In 2025 it paid out 98% 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 2025, annual grant giving ranged from $41K (2024) to $56K (2023). In 2025 it made 4 grants totaling $46K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Eastside College Prep School Inc East Palo Alto, CA | Scholarships | $24,000 |
| University of California Fdn - Davis Davis, CA | Coffee Support Fund - | $10,000 |
| Saratoga Federated Church Saratoga, CA | Grief Ministry | $7,250 |
| ALS Therapy Development Institute Watertown, MA | Unrestricted General | $5,000 |
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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 | $947,252 | $136,843 | $70,612 | $46,250 | 4 | $56,010 | $124,004 | $57,189 |
| 2024 | $881,478 | $102,809 | $60,974 | $41,000 | 3 | $49,605 | $91,549 | $53,531 |
| 2023 | $839,210 | $60,444 | $75,470 | $56,000 | 4 | $64,338 | $50,176 | $49,422 |
| 2022 | $854,820 | $102,738 | $78,655 | $56,000 | 5 | $64,991 | $91,533 | $51,251 |
| 2021 | $827,315 | $132,217 | $72,360 | $51,000 | 4 | — | $120,823 | $54,400 |
| 2020 | $763,999 | $99,546 | $67,243 | $49,000 | 4 | — | $89,980 | $45,020 |
Under IRS private-foundation payout rules, Mark & Jannie Wu Family Fdn reported a distributable amount of $57K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mark & Jannie Wu Family Fdn is led by Jannie T. Wu, Chairman on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Jannie T. Wu
Chairman
On filings since 2020
2 hrs/week
No compensation reported
Karen Lott
Treasurer
On filings since 2020
2 hrs/week
No compensation reported
Stephanie Palmer
Secretary
On filings since 2020
2 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 Mark & Jannie Wu Family Fdn
How much does Mark & Jannie Wu Family Fdn give each year?
Mark & Jannie Wu Family Fdn gave $46K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $41K across 3 grants.
What is Mark & Jannie Wu Family Fdn's typical grant size?
Mark & Jannie Wu Family Fdn's median grant in 2025 was $8,625, and its average grant was $11,563, across 4 grants on its 2025 IRS Form 990-PF.
Where does Mark & Jannie Wu Family Fdn give grants?
Mark & Jannie Wu Family Fdn gives mostly in California: 89% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Massachusetts (11%).
Does Mark & Jannie Wu Family Fdn give general operating support?
Yes: 25% of Mark & Jannie Wu Family Fdn's 2025 grants with a stated purpose (1 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.
How large is Mark & Jannie Wu Family Fdn?
Mark & Jannie Wu Family Fdn reported $947K in total assets on its 2025 IRS Form 990-PF. It paid out $56K in qualifying distributions that year, against a required minimum of $57K (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.
What is Mark & Jannie Wu Family Fdn's EIN?
Mark & Jannie Wu Family Fdn's EIN (Employer Identification Number) is 77-0555799. 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
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 24, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 7, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 8, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 29, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS January 30, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 13, 2026)
- IRS filings on file for fiscal years 2020–2025
Live grants for the work Mark & Jannie Wu Family Fdn funds
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