Karl and Katherine Pfiffner Res Tr
Karl and Katherine Pfiffner Res Tr is a private foundation, based in Green Bay, WI. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $391K in total assets. In 2025, it awarded 1 grant totaling $23K. Net investment income was $34K.
Karl and Katherine Pfiffner Res Tr at a glance
In short: Karl and Katherine Pfiffner Res Tr gave $23K across 1 grant in 2025 (avg $23K), mostly in Wisconsin. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $22,804
- +7.3% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $22,804
- +7.3% vs 2024
- Median grant
- $22,804
- Total assets
- $391,291
- +2.2% vs 2024
- Primary geography
- Wisconsin (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
Who Karl and Katherine Pfiffner Res Tr funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was St Stephen Catholic Parish ($23K).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was under $50K: 5 grants of 5 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Karl and Katherine Pfiffner Res Tr gives
- Giving held roughly steady from 2022 to 2025 (−8%). Method
- In 2025 it paid out 96% 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 $21K (2020) to $25K (2022). In 2025 it made 1 grant totaling $23K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| St Stephen Catholic Parish Stevens Point, WI | Program Support | $22,804 |
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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 | $391,291 | $40,128 | $31,830 | $22,804 | 1 | $24,715 | $34,258 | $25,776 |
| 2024 | $382,848 | $58,776 | $29,102 | $21,256 | 1 | $23,115 | $53,025 | $24,663 |
| 2023 | $352,566 | $21,979 | $28,519 | $21,554 | 1 | $23,266 | $16,468 | $22,968 |
| 2022 | $359,635 | $21,356 | $33,259 | $24,669 | 1 | $26,443 | $15,947 | $23,328 |
| 2021 | $371,745 | $56,566 | $30,229 | $21,992 | 1 | $23,977 | $50,563 | $26,654 |
| 2020 | $345,294 | $23,213 | $28,468 | $20,943 | 1 | — | $17,930 | $23,749 |
Under IRS private-foundation payout rules, Karl and Katherine Pfiffner Res Tr reported a distributable amount of $26K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Karl and Katherine Pfiffner Res Tr's only listed officer is Associated Trust Company, Trustee on every filing since 2022 (compensated).
Officers on the 2025 filing
Associated Trust Company
Trustee
On filings since 2022
1 hr/week
$7K (2022) → $8K (2025)
Former officers (1)
- Former: Associated Trust Company NA (2020–2021) — Trustee
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $8K, to Associated Trust Company (Trustee).
Frequently asked questions about Karl and Katherine Pfiffner Res Tr
How much does Karl and Katherine Pfiffner Res Tr give each year?
Karl and Katherine Pfiffner Res Tr gave $23K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $21K across 1 grant.
How large is Karl and Katherine Pfiffner Res Tr?
Karl and Katherine Pfiffner Res Tr reported $391K in total assets on its 2025 IRS Form 990-PF. It paid out $25K in qualifying distributions that year, against a required minimum of $26K (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 Karl and Katherine Pfiffner Res Tr operate?
Karl and Katherine Pfiffner Res Tr has awarded grants in Wisconsin.
What is Karl and Katherine Pfiffner Res Tr's EIN?
Karl and Katherine Pfiffner Res Tr's EIN (Employer Identification Number) is 39-6423610. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated October 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 April 19, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS April 14, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS April 27, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 30, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 4, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 1, 2026)
- IRS filings on file for fiscal years 2020–2024
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