Mathematics Institute of Wisconsin
Mathematics Institute of Wisconsin is a private foundation focused on Education, based in Oconomowoc, WI. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $925K in total assets. In 2025, it made $287K in qualifying distributions. Net investment income was $34.
Mathematics Institute of Wisconsin at a glance
- Total assets
- $925,392
- +3.7% vs 2024
- Revenue (2025)
- $964,988
- -37.5% vs 2024
- Qualifying distributions (2025)
- $287,188
- +38.5% vs 2024
- Expenses (2025)
- $925,467
- -17.5% vs 2024
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Qualifying Distributions | Net Investment Income |
|---|---|---|---|---|---|
| 2025 | $925,392 | $964,988 | $925,467 | $287,188 | $34 |
| 2024 | $892,475 | $1,544,167 | $1,121,312 | $207,358 | — |
| 2023 | $465,561 | $951,053 | $1,396,274 | $444,237 | $18 |
| 2022 | $910,984 | $1,211,151 | $1,299,725 | $184,849 | $16 |
| 2021 | $994,920 | $1,599,336 | $1,128,371 | $291,985 | $15 |
| 2020 | $521,844 | $1,388,968 | $1,167,371 | — | $32 |
| 2019 | $330,415 | $1,159,858 | $1,343,659 | — | $48 |
Leadership & Key People
Officers and directors from IRS filings
Mathematics Institute of Wisconsin is led by Kathryn Leverenz, President on every filing since 2019; 1 of 3 officers listed in 2025 is compensated.
Officers on the 2025 filing
Kathryn Leverenz
President
On filings since 2019
40 hrs/week
$198K (2019) → $204K (2025)
Larry Pesch
Director
New on the 2025 filing
1 hr/week
No compensation reported
Jedd Lapid
Secretary
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (2)
- Former: James L. Mohr (2019–2024) — Secretary
- Former: Marcia K. Peterson (2019–2024) — Director
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $204K, to Kathryn Leverenz (President).
Frequently asked questions about Mathematics Institute of Wisconsin
How large is Mathematics Institute of Wisconsin?
Mathematics Institute of Wisconsin reported $925K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $965K.
What is Mathematics Institute of Wisconsin?
Mathematics Institute of Wisconsin is a private foundation focused on Education, based in Oconomowoc, WI. It holds $925K in total assets as of 2025.
What is Mathematics Institute of Wisconsin's EIN?
Mathematics Institute of Wisconsin's EIN (Employer Identification Number) is 46-4161191. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS March 17, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS August 18, 2026)
- IRS filings on file for fiscal years 2020–2024
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