The SPIA Foundation - Marius Winkelman Trustee
The SPIA Foundation - Marius Winkelman Trustee is a private foundation, based in New York, NY. IRS filing data is available from 2021 through 2026. As of 2026, the organization holds $8.4M in total assets. In 2026, it awarded 6 grants totaling $685K. Net investment income was $142K.
Key facts about The SPIA Foundation - Marius Winkelman Trustee
In short: The SPIA Foundation - Marius Winkelman Trustee gave $685K across 6 grants in 2026 (avg $114K), mostly in Pennsylvania. Source: 2026 IRS Form 990-PF.
- EIN
- 13-3318172
- Latest 990 filing
- Form 990-PF, 2026
- Annual giving (2026)
- $685,000
- Grants made (2026)
- 6
- Average grant
- $114,167
- Median grant
- $37,500
- Total assets
- $8,364,868
- Primary geography
- Pennsylvania (73% of itemized 2026 grant dollars)
Data from IRS Form 990-PF, 2026; updated September 2026.
Financial Overview
From 2026 IRS Form 990-PF · View filing
Total Assets
$8.4M
+1.8% YoY
Annual Giving
$685K
+4466.7% YoY
Grant Count
6
+100.0% YoY
Avg Grant Size
$114K
+2183.3% YoY
Under IRS private-foundation payout rules, The SPIA Foundation - Marius Winkelman Trustee reported a distributable amount of $341K for 2026 — the minimum it must pay out in qualifying distributions.
How The SPIA Foundation - Marius Winkelman Trustee gives
- Giving grew 2640% from 2023 to 2026. Method
- In 2026 it paid out 202% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2026 grant dollars across all 6 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2026, annual grant giving ranged from $10K (2024) to $685K (2026). In 2026 it made 6 grants totaling $685K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 6 recipients in 2026
The largest 2026 recipient was University of Pennsylvania ($500K). Together the top 6 received $685K.
Grant Size Distribution
20 grants across all recorded years
The most common grant size was under $50K: 17 grants of 20 (85%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of Pennsylvania Philadelphia, PA | Education Funding | $500,000 |
| The Nature Conservancy Arlington, VA | Conserve Lands& Water | $100,000 |
| Founding Fish Network Inc Atlantic Highlands, NJ | Fish Preservation | $50,000 |
| High Hopes Therapeutic Riding Old Lyme, CT | Horses & HumansCompanionship | $25,000 |
| Essex Land Trust Essex, CT | LandPreservation | $5,000 |
| Voices Center for Resilience New Canaan, CT | CivicFunding | $5,000 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2026 | 2025 | 2024 |
|---|---|---|---|
| Total Assets | $8,364,868 | $8,220,958 | $3,779,820 |
| Revenue | $902,282 | $-193,714 | $1,786,127 |
| Expenses | $758,372 | $19,425 | $14,370 |
| Qualifying Distributions | $687,670 | $17,475 | $12,520 |
| Net Investment Income | $142,211 | $4,723,536 | $23,587 |
| Distributable Amount | $340,788 | $229,534 | $142,199 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 11, 2021)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS August 2, 2022)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 30, 2023)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS June 11, 2024)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2025)
- Updated Form 990-PF for fiscal year 2026 (received by the IRS April 20, 2026)
- IRS filings on file for fiscal years 2021–2026
Leadership & Key People
Officers and directors from IRS filings
The SPIA Foundation - Marius Winkelman Trustee's 2026 filing lists 4 officers; none of the 4 officers listed in 2026 report compensation.
Officers on the 2026 filing
Colin F Winkelman
Trustee
On filings since 2021
No compensation reported
Dorinda P Winkelman
Trustee
On filings since 2021
No compensation reported
Marius O Winkelman
Trustee
On filings since 2021
No compensation reported
Victoria P Winkelman-Dedet
Trustee
On filings since 2021
No compensation reported
Data from IRS Form 990 filings, 2021–2026. "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 The SPIA Foundation - Marius Winkelman Trustee
How much does The SPIA Foundation - Marius Winkelman Trustee give each year?
The SPIA Foundation - Marius Winkelman Trustee gave $685K across 6 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $15K across 3 grants.
What is The SPIA Foundation - Marius Winkelman Trustee's typical grant size?
The SPIA Foundation - Marius Winkelman Trustee's median grant in 2026 was $37,500, and its average grant was $114,167, across 6 grants on its 2026 IRS Form 990-PF.
Where does The SPIA Foundation - Marius Winkelman Trustee give grants?
The SPIA Foundation - Marius Winkelman Trustee gives mostly in Pennsylvania: 73% of the grant dollars itemized on its 2026 IRS Form 990-PF went to recipients there. The next largest states were Virginia (15%) and New Jersey (7%).
Does The SPIA Foundation - Marius Winkelman Trustee give general operating support?
Not in 2026: none of the 6 grants with a stated purpose on The SPIA Foundation - Marius Winkelman Trustee's 2026 IRS Form 990-PF were described as general or operating support.
Who are The SPIA Foundation - Marius Winkelman Trustee's largest grantees?
The SPIA Foundation - Marius Winkelman Trustee's largest 2026 grantees include University of Pennsylvania ($500,000), The Nature Conservancy ($100,000) and Founding Fish Network Inc ($50,000), according to its 2026 IRS Form 990-PF. Together they received 95% of its itemized 2026 grant dollars.
How large is The SPIA Foundation - Marius Winkelman Trustee?
The SPIA Foundation - Marius Winkelman Trustee reported $8.4M in total assets on its 2026 IRS Form 990-PF. It paid out $688K in qualifying distributions that year, against a required minimum of $341K (roughly 5% of its investment assets).
What is The SPIA Foundation - Marius Winkelman Trustee's EIN?
The SPIA Foundation - Marius Winkelman Trustee's EIN (Employer Identification Number) is 13-3318172. IRS Form 990 filing data is available on this page for 2021–2026.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
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