The Mosakowski Family Charitable Foundation
The Mosakowski Family Charitable Foundation is a private foundation, 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.
The Mosakowski Family Charitable Foundation at a glance
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.
- Annual giving (2024)
- $2,247,759
- -55.0% vs 2023
- Grants made (2024)
- 7
- +16.7% vs 2023
- Average grant
- $321,108
- -61.5% vs 2023
- Median grant
- $150,000
- Total assets
- $109,042,194
- +47.8% vs 2023
- Primary geography
- Massachusetts (91% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who The Mosakowski Family Charitable Foundation funds
How this funder distributes its grants
Top Recipients
Top 7 recipients in 2024
The largest 2024 recipient was College of the Holy Cross ($1.5M). Together the top 7 received $2.2M.
Grant Size Distribution
31 grants across all recorded years
The most common grant size was in the $100–250K range: 12 grants of 31 (39%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 7 itemized grants.
Cities
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.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2024, annual grant giving ranged from $2.2M (2024) to $5.0M (2023). In 2024 it made 7 grants totaling $2.2M.
Grants by year
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 |
Ready to take the next step with The Mosakowski Family Charitable Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $109,042,194 | $39,645,360 | $2,952,310 | $2,247,759 | 7 | $2,662,121 | $4,610,533 | $4,368,641 |
| 2023 | $73,783,532 | $4,874,731 | $5,726,948 | $4,999,266 | 6 | $5,395,876 | $4,610,102 | $3,870,232 |
| 2022 | $74,268,741 | $25,178,495 | $4,425,919 | $4,035,000 | 9 | $4,185,261 | $1,484,745 | $2,958,684 |
| 2021 | $54,124,851 | $20,306,888 | $3,395,725 | $3,078,550 | 9 | $3,197,368 | $4,014,999 | $2,523,072 |
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.
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
The highest reported compensation on the 2024 filing was $136K, to Rachel Mosakowski (Director).
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). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
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.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2024
Live grants for the work The Mosakowski Family Charitable Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
- Nixa Affiliate Grantmaking Program Up to US $10,000 · Due October 19, 2026
- Community and School Grants $28,000 total pool; 10-15 grants expected · Due October 19, 2026
- Mary Pinola/Crescenta Valley Chamber Education Fund $500 - $5,000 for ongoing programs; up to $15,000 for Strategic Initiative Grants · Due October 19, 2026
Explore Open Grants
Browse active grant opportunities in The Mosakowski Family Charitable Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Challenger Foundation
Garden City, NY
The Challenger Foundation funds preselected charitable organizations, with recent grants supporting education, veterans, and other causes. Its 2025 grants ranged from $50,000 to $500,096, with a median of $62,500, and went to organizations in several states, including Michigan, Pennsylvania, Illinois, Massachusetts, and New York. It does not accept unsolicited funding requests.
Assets
$24.1M
Grants
10
Total Given
$1.5M
Riley Mabel Louise Tr Uwill
Pittsburgh, PA
The foundation supports children and youth, education, human services, arts access, job training, foster care, affordable housing, and neighborhood revitalization. Its main grants to Massachusetts nonprofits serving Boston are typically $50,000–$100,000; its Greater Dudley small-grants fund generally awards $500–$5,000. Whether it accepts unsolicited requests is not stated.
Assets
$47.3M
Grants
69
Total Given
$3.7M
Shaughnessy Charitable Trust
Quincy, MA
The Shaughnessy Charitable Trust supports charitable organizations, including those serving youth and families and working in education and health, primarily in Massachusetts. Its 2025 grants ranged from $1,250 to $75,000, with a median of $10,000. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$6.1M
Grants
19
Total Given
$321K
Herrman Family Charitable Foundation
Framingham, MA
The foundation supports preselected charitable organizations in education, animal welfare, social services, and advocacy, with 2024 grants concentrated in Indiana and Massachusetts and some funding in Maryland. Its 24 grants ranged from $165 to $600,000, with a median of $2,698. It does not accept unsolicited requests.
Assets
$8.5M
Grants
24
Total Given
$941K
Emla Rimelspacher Scholarship Fund
Denville, NJ
The Emla Rimelspacher Scholarship Fund primarily supports scholarships, with 2025 grants ranging from $400 to $8,400 and a median grant of $1,100. Its 2025 giving went mainly to organizations in New Jersey, though two recipients were outside the state. It does not accept unsolicited requests and gives only to preselected charitable organizations.
Assets
$878K
Grants
29
Total Given
$53K
Karp Family Foundation Stephen R
Boston, MA
The Karp Family Foundation Stephen R. and supports charitable organizations in areas including education and human services, with most 2025 funding going to Massachusetts and New York. Its 2025 grants ranged from $100 to $500,000, with a median of $20,000; it funds only preselected organizations and does not accept unsolicited requests.
Assets
$918K
Grants
31
Total Given
$2.0M
More similar funders
More Funders in Massachusetts
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from The Mosakowski Family Charitable Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
The Mosakowski Family Charitable Foundation down — hundreds of funders to go?