Malcolm Stack Foundation Inc
Malcolm Stack Foundation Inc is a private foundation focused on Environment & Animals, based in Ridgeway, WI. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $8.9M in total assets. In 2025, it awarded 9 grants totaling $55K. Net investment income was $329K.
Malcolm Stack Foundation Inc at a glance
In short: Malcolm Stack Foundation Inc gave $55K across 9 grants in 2025 (avg $6K), mostly in Wisconsin. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $54,850
- -26.1% vs 2024
- Grants made (2025)
- 9
- -10.0% vs 2024
- Average grant
- $6,094
- -17.9% vs 2024
- Median grant
- $2,500
- Total assets
- $8,880,174
- +12.8% vs 2024
- Primary geography
- Wisconsin (84% 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 Malcolm Stack Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2025
The largest 2025 recipient was Uw Foundation ($28K). Together the top 8 received $52K.
Organizations only. It also paid 1 individual scholarship ($2,500), which are not listed by name.
Grant Size Distribution
51 grants across all recorded years
The most common grant size was under $50K: 50 grants of 51 (98%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 9 itemized grants.
Cities
How Malcolm Stack Foundation Inc gives
- Giving grew 131% from 2022 to 2025. 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 2019 to 2025, annual grant giving ranged from $24K (2022) to $77K (2019). In 2025 it made 9 grants totaling $55K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Uw Foundation Madison, WI | Scholarship | $27,500 |
| Evans Scholars Glenview, IL | Program Support | $6,350 |
| American Cancer Society Madison, WI | Program Support | $5,000 |
| Driftless Land Conservancy Dodgeville, WI | Program Support | $5,000 |
| Village of Ridgeway - Community Center Ridgeway, WI | Scholarship | $2,500 |
| 1 individual scholarship Recipients not named | — | $2,500 |
| University of Minnesota Minneapolis, MN | Scholarship | $2,500 |
| Planned Parenthood of WI Milwaukee, WI | Program Support | $2,500 |
| American Players Theater Spring Green, WI | Program Support | $1,000 |
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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 | $8,880,174 | $1,416,047 | $425,523 | $54,850 | 9 | $284,796 | $328,749 | — |
| 2024 | $7,875,880 | $676,812 | $442,705 | $74,200 | 10 | $505,334 | $599,607 | — |
| 2023 | $7,641,895 | $929,759 | $344,929 | $51,800 | 11 | $280,871 | $861,253 | — |
| 2022 | $7,056,830 | $128,598 | $298,992 | $23,700 | 9 | $311,074 | $71,495 | — |
| 2021 | $7,227,224 | $461,755 | $332,836 | $51,000 | 12 | $317,294 | $387,370 | — |
| 2020 | $7,098,305 | $494,632 | $331,121 | $47,500 | 10 | — | $429,834 | $319,487 |
| 2019 | $6,934,794 | $374,674 | $384,359 | $77,200 | 15 | — | $301,022 | $317,436 |
Leadership & Key People
Officers and directors from IRS filings
Malcolm Stack Foundation Inc is led by Anne M. Connor, President on the 2025 filing; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Anne M. Connor
President
New on the 2025 filing
2 hrs/week
No compensation reported
Debra Locke
Vice President
New on the 2025 filing
2 hrs/week
No compensation reported
Linda S. Hughes
Treasurer & Secretary
New on the 2025 filing
2 hrs/week
No compensation reported
Former officers (3)
- Former: Anne M. Connor Co Bell Labs (2019–2024) — President
- Former: Debra Locke Co Bell Labs (2019–2024) — Vice President
- Former: Linda S. Hughes Co Bell Labs (2019–2024) — Treasurer & Secretary
Data from IRS Form 990 filings, 2019–2025. "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 Malcolm Stack Foundation Inc
How much does Malcolm Stack Foundation Inc give each year?
Malcolm Stack Foundation Inc gave $55K across 9 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $74K across 10 grants.
What is Malcolm Stack Foundation Inc's typical grant size?
Malcolm Stack Foundation Inc's median grant in 2025 was $2,500, and its average grant was $6,094, across 9 grants on its 2025 IRS Form 990-PF.
Where does Malcolm Stack Foundation Inc give grants?
Malcolm Stack Foundation Inc gives mostly in Wisconsin: 84% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Illinois (12%). The most frequent recipient cities were Madison, WI (2 grants).
Does Malcolm Stack Foundation Inc give general operating support?
Not in 2025: none of the 9 grants with a stated purpose on Malcolm Stack Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Program Support" (5 grants) and "Scholarship" (4 grants).
Who are Malcolm Stack Foundation Inc's largest grantees?
Malcolm Stack Foundation Inc's largest 2025 grantees include Uw Foundation ($27,500), Evans Scholars ($6,350) and American Cancer Society ($5,000), according to its 2025 IRS Form 990-PF. It also paid 1 individual scholarship ($2,500), which are not listed by name. Together they received 71% of its itemized 2025 grant dollars.
How large is Malcolm Stack Foundation Inc?
Malcolm Stack Foundation Inc reported $8.9M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $1.4M.
What is Malcolm Stack Foundation Inc?
Malcolm Stack Foundation Inc is a private foundation focused on Environment & Animals, based in Ridgeway, WI. It holds $8.9M in total assets as of 2025.
What is Malcolm Stack Foundation Inc's EIN?
Malcolm Stack Foundation Inc's EIN (Employer Identification Number) is 39-2018087. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS March 5, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS April 26, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 2, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 10, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 21, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
- IRS filings on file for fiscal years 2019–2024
Explore Open Grants
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