The Mosakowski Family Charitable Foundation
The Mosakowski Family Charitable Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Swampscott, MA. IRS filing data is available from 2021 through 2024. As of 2024, the organization holds $109.0M in total assets. In 2024, it awarded 7 grants totaling $2.2M. Net investment income was $4.6M.
Key facts about The Mosakowski Family Charitable Foundation
In short: The Mosakowski Family Charitable Foundation gave $2.2M across 7 grants in 2024 (avg $321K), mostly in Massachusetts. Source: 2024 IRS Form 990-PF.
- EIN
- 20-2052977
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $2,247,759
- Grants made (2024)
- 7
- Average grant
- $321,108
- Median grant
- $150,000
- Total assets
- $109,042,194
- Primary geography
- Massachusetts (91% of itemized 2024 grant dollars)
Data from IRS Form 990-PF, 2024; updated September 2026.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$109.0M
+47.8% YoY
Annual Giving
$2.2M
-55.0% YoY
Grant Count
7
+16.7% YoY
Avg Grant Size
$321K
-61.5% YoY
Under IRS private-foundation payout rules, The Mosakowski Family Charitable Foundation reported a distributable amount of $4.4M for 2024 — the minimum it must pay out in qualifying distributions.
How The Mosakowski Family Charitable Foundation gives
- Giving fell 27% from 2021 to 2024. Method
- In 2024 it paid out 61% 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.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 7 itemized 2024 grant dollars.
Cities
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 7 recipients in 2024
Grant Size Distribution
31 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| COLLEGE OF THE HOLY CROSS Worcester, MA | GENERAL OPERATING | $1,500,000 |
| MASSACHUSETTS ASSOCIATION Boston, MA | GENERAL OPERATING | $222,759 |
| ST BENEDICTS PREPARATORY SCHOOL INC Newark, NJ | GENERAL OPERATING | $200,000 |
| CATHOLIC SCHOOLS FOUNDATION INC Boston, MA | GENERAL OPERATING | $150,000 |
| NATIVITY SCHOOL OF WORCESTER Worcester, MA | GENERAL OPERATING | $100,000 |
| CATHOLIC CHARITIES NORTH Lynn, MA | GENERAL OPERATING | $50,000 |
| ST MARY'S HIGH SCHOOL Lynn, MA | GENERAL OPERATING | $25,000 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $109,042,194 | $73,783,532 | $74,268,741 |
| Revenue | $39,645,360 | $4,874,731 | $25,178,495 |
| Expenses | $2,952,310 | $5,726,948 | $4,425,919 |
| Qualifying Distributions | $2,662,121 | $5,395,876 | $4,185,261 |
| Net Investment Income | $4,610,533 | $4,610,102 | $1,484,745 |
| Distributable Amount | $4,368,641 | $3,870,232 | $2,958,684 |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2024
Leadership & Key People
Officers and directors from IRS filings
The Mosakowski Family Charitable Foundation's 2024 filing lists 3 officers; 1 of 3 officers listed in 2024 is compensated.
Officers on the 2024 filing
William Mosakowski
Trustee
On filings since 2021
2 hrs/week
$134K (2023) → $0 (2024)
Rachel Mosakowski
Director
New on the 2024 filing
40 hrs/week
$136K (2024)
Jane Mosakowski
Trustee
On filings since 2021
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2021–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
Frequently asked questions about The Mosakowski Family Charitable Foundation
How much does The Mosakowski Family Charitable Foundation give each year?
The Mosakowski Family Charitable Foundation gave $2.2M across 7 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $5.0M across 6 grants.
What is The Mosakowski Family Charitable Foundation's typical grant size?
The Mosakowski Family Charitable Foundation's median grant in 2024 was $150,000, and its average grant was $321,108, across 7 grants on its 2024 IRS Form 990-PF.
Where does The Mosakowski Family Charitable Foundation give grants?
The Mosakowski Family Charitable Foundation gives mostly in Massachusetts: 91% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was New Jersey (9%). The most frequent recipient cities were Worcester, MA (2 grants), Boston, MA (2 grants) and Lynn, MA (2 grants).
Does The Mosakowski Family Charitable Foundation give general operating support?
Yes: 100% of The Mosakowski Family Charitable Foundation's 2024 grants with a stated purpose (7 of 7) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are The Mosakowski Family Charitable Foundation's largest grantees?
The Mosakowski Family Charitable Foundation's largest 2024 grantees include College of the Holy Cross ($1,500,000), Massachusetts Association ($222,759) and St Benedicts Preparatory School Inc ($200,000), according to its 2024 IRS Form 990-PF. Together they received 86% of its itemized 2024 grant dollars.
How large is The Mosakowski Family Charitable Foundation?
The Mosakowski Family Charitable Foundation reported $109.0M in total assets on its 2024 IRS Form 990-PF. It paid out $2.7M in qualifying distributions that year, against a required minimum of $4.4M (roughly 5% of its investment assets).
What is The Mosakowski Family Charitable Foundation?
The Mosakowski Family Charitable Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Swampscott, MA. It holds $109.0M in total assets as of 2024.
What is The Mosakowski Family Charitable Foundation's EIN?
The Mosakowski Family Charitable Foundation's EIN (Employer Identification Number) is 20-2052977. IRS Form 990 filing data is available on this page for 2021–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
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