The Slaggie Family Foundation is a private grantmaking foundation based in Winona, Minnesota. Established in 1997 and tax-exempt since October 1999, the foundation was established by Stephen M. Slaggie, one of five founders of Fastenal Company. It operates as a second-generation family foundation with a commitment to philanthropic giving across multiple sectors.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
—
Annual Giving
$3.6M
+47.5% YoY
Grant Count
86
+10.3% YoY
Avg Grant Size
$42K
+33.8% YoY
Mission & Focus Areas
The foundation's giving priorities include:
- Education
- Human services
- Religion
- Healthcare
- Arts and culture
- Community development
- Civic affairs
- Children and youth
- Catholic organizations and institutions
- Social services, including hunger relief
The foundation demonstrates particular emphasis on Catholic education and institutions, with a mission centered on education, healthcare, arts, and humanitarian causes.
Grantmaking
In 2024, the foundation made 124 grants. Notable recent grants include:
Grant Range
$250 to $2,089,987
Review Cycle
. Contact information for inquiries:
How to Apply
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Geographic Focus
Where this funder awards grants
The foundation funds primarily in Winona, Minnesota and Southeastern Minnesota, though it makes grants nationally. Grantees have been located across numerous states including California, Florida, New York, Chicago, and other major urban centers, as well as smaller towns throughout the United States.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Most Recent Data (2024):
- Total assets: $101,015,898
- Total giving: $3,633,710
- Total revenues: $49,528,725
- Total expenses: $4,962,908
- Giving rate: 3.6%
Previous Year (2023):
- Total assets: $68,530,972
- Total giving: $2,468,040
- Total revenues: $6,180,891
- Total expenses: $3,561,444
The foundation has zero employees and is staffed entirely by board members.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | — | — | — |
| Revenue | — | — | — |
| Expenses | — | — | — |
| Qualifying Distributions | — | — | — |
| Net Investment Income | — | — | — |
| Distributable Amount | — | — | — |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
The foundation is managed by a board of trustees composed of family members who serve without compensation:
- Stephen M. Slaggie – President
- Michael J. Slaggie – Vice President
- Matthew S. Slaggie – Treasurer
- Amanda Slaggie – Secretary
- Barbara J. Slaggie – Trustee
- Sara J. Slaggie Poulos – Trustee
- Gregory T. Poulos – Trustee
- Michelle M. Schlehuber – Trustee
- Thomas M. Schlehuber – Trustee
- Lindsay Slaggie – Trustee
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| STEPHEN M SLAGGIE | PRESIDENT | 2 | — |
| BARBARA J SLAGGIE | TRUSTEE | 1 | — |
| MICHAEL J SLAGGIE | VP | 12 | — |
| AMANDA SLAGGIE | SECRETARY | 1 | — |
| MATTHEW S SLAGGIE | TREASURER | 1 | — |
| SARA J SLAGGIE POULOS | TRUSTEE | 1 | — |
| GREGORY T POULOS | TRUSTEE | 1 | — |
| MICHELLE M SCHLEHUBER | TRUSTEE | 1 | — |
| THOMAS M SCHLEHUBER | TRUSTEE | 1 | — |
| LINDSAY SLAGGIE | TRUSTEE | 1 | — |
Recent News & Activity
Recent developments and announcements
The foundation has made significant transformational gifts in recent years, including:
A $50 million gift to Mayo Clinic for cancer care innovation in 2024
A $10 million gift to Saint Mary's University of Minnesota, tied to innovation and the university's future
Saint Mary\u2019s announces $10 million gift from Slaggie Family Foundation;\Cotter Schools received the largest donation in the school's 105-year history from the foundation
Cotter receives biggest donation in 105 yearsSubject Areas
Focus areas based on grantmaking activity
Related Funders
Similar funders by location and focus area
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—
Grants
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Total Given
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—
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Total Given
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Total Given
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Donald and Luella Zibell Family Foundation
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Assets
—
Grants
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Total Given
$80K
Minnesota Citizens Concerned
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Assets
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Total Given
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Clearway Minnesota (sm)
MINNEAPOLIS, MN
Assets
—
Grants
6
Total Given
$442K
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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