M-a-S Charitable Foundation
M-a-S Charitable Foundation is a private foundation based in Clayton, Missouri. In filing year 2024, it reported 10 grants totaling $66,991 to charitable organizations.
M-a-S Charitable Foundation at a glance
In short: M-a-S Charitable Foundation gave $67K across 10 grants in 2024 (avg $7K), mostly in Missouri. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $66,991
- -1.7% vs 2023
- Grants made (2024)
- 10
- -9.1% vs 2023
- Average grant
- $6,699
- +8.2% vs 2023
- Median grant
- $7,000
- Total assets
- $483,840
- +5.9% vs 2023
- Primary geography
- Missouri (73% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026.
How to apply to M-a-S Charitable Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation stated on its 2023 filing that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests.
- Contact
Mailing address: PO Box 11356, Clayton, MO 63105-0156
Phone: (314) 746-7329
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who M-a-S Charitable Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Alzheimer's Association ($10K). Together the top 10 received $67K.
Grant Size Distribution
38 grants across all recorded years
The most common grant size was under $50K: 38 grants of 38 (100%).
Geographic Focus
Where this funder awards grants
In 2024, 73% of grant dollars went to recipients in Missouri, 15% to recipients in Illinois, and 12% to recipients in Texas.
Grant Distribution by State
Share of 2024 grant dollars across all 10 itemized grants.
Cities
How M-a-S Charitable Foundation gives
- 100% of 2024 grantees were also funded in 2023. Method
- Giving grew 22% from 2021 to 2024. Method
- In 2024 it paid out 89% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $50K (2020) to $70K (2022). In 2024 it made 10 grants totaling $67K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Alzheimer's Association Chicago, IL | General Support | $10,000 |
| Cardinal Glennon Children's Hospital St. Louis, MO | General Support | $9,000 |
| Cadasil - Together We Have Hope Round Rock, TX | General Support | $8,000 |
| St Ambrose Catholic Church St. Louis, MO | General Support | $8,000 |
| Backstoppers St. Louis, MO | General Support | $8,000 |
| Catholic Charities Cardinal Ritter Saint Louis, MO | Cardinal Ritter Senior | $6,000 |
| St Louis Peregrine Society Inc St. Louis, MO | General Support | $5,000 |
| Webster University St. Louis, MO | General Support | $5,000 |
| St Louis Zoo St. Louis, MO | General Support | $5,000 |
| St Mary Magdalen Catholic School Brentwood, MO | General Support | $2,991 |
Ready to take the next step with M-a-S 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 | $483,840 | $117,710 | $90,686 | $66,991 | 10 | $70,511 | $94,277 | $79,435 |
| 2023 | $456,758 | $59,743 | $94,931 | $68,129 | 11 | $71,367 | $41,035 | $70,229 |
| 2022 | $491,999 | $131,893 | $93,756 | $70,041 | 8 | $73,303 | $113,170 | $71,391 |
| 2021 | $454,516 | $91,162 | $76,281 | $54,745 | 8 | — | $72,844 | $73,245 |
| 2020 | $439,703 | $55,214 | $69,386 | $49,735 | 1 | — | $39,408 | $57,481 |
Under IRS private-foundation payout rules, M-a-S Charitable Foundation reported a distributable amount of $79K for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2024 grantees included organizations with varied missions: St. Louis Peregrine Society describes its mission as improving the quality of life of cancer patients in the St. Louis area; Webster University describes itself as a global university committed to high-quality learning experiences that transform students for global citizenship and individual excellence.
Grantmaking
In 2024, the foundation reported 10 grants totaling $66,991. Grants ranged from $2,991 to $10,000, with a median of $7,000. Notable grants included $10,000 to the Alzheimer’s Association, $9,000 to Cardinal Glennon Children’s Hospital, and $8,000 each to CADASIL - Together We Have Hope, St. Ambrose Catholic Church, and Backstoppers.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists M Siegel and T Siegel as co-trustees, and Commerce Trust Company as co-trustee and tax preparer.
M-a-S Charitable Foundation's 2024 filing lists 3 officers; 2 of 3 officers listed in 2024 are compensated.
Officers on the 2024 filing
Commerce Trust Company
Co-Trustee & Tax Preparation
On filings since 2020
1 hr/week
$13K (2020) → $17K (2024)
T. Siegel
Co-Trustee
On filings since 2020
1 hr/week
$3K (2020) → $4K (2024)
M. Siegel
Co-Trustee
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 $17K, to Commerce Trust Company (Co-Trustee). 3 officers or directors reported compensation on that filing.
Frequently asked questions about M-a-S Charitable Foundation
How much does M-a-S Charitable Foundation give each year?
M-a-S Charitable Foundation gave $67K across 10 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $68K across 11 grants.
What is M-a-S Charitable Foundation's typical grant size?
M-a-S Charitable Foundation's median grant in 2024 was $7,000, and its average grant was $6,699, across 10 grants on its 2024 IRS Form 990-PF.
Where does M-a-S Charitable Foundation give grants?
M-a-S Charitable Foundation gives mostly in Missouri: 73% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Illinois (15%) and Texas (12%). The most frequent recipient cities were Saint Louis, MO (7 grants).
Does M-a-S Charitable Foundation give general operating support?
Yes: 90% of M-a-S Charitable Foundation's 2024 grants with a stated purpose (9 of 10) were for general or operating support, per its 2024 IRS Form 990-PF.
Who are M-a-S Charitable Foundation's largest grantees?
M-a-S Charitable Foundation's largest 2024 grantees include Alzheimer's Association ($10,000), Cardinal Glennon Children's Hospital ($9,000) and Cadasil - Together We Have Hope ($8,000), according to its 2024 IRS Form 990-PF. Together they received 40% of its itemized 2024 grant dollars.
How large is M-a-S Charitable Foundation?
M-a-S Charitable Foundation reported $484K in total assets on its 2024 IRS Form 990-PF. It paid out $71K in qualifying distributions that year, against a required minimum of $79K (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 does M-a-S Charitable Foundation fund?
No mission statement for the foundation is provided. Its 2024 grantees included organizations with varied missions: St. Louis Peregrine Society describes its mission as improving the quality of life of cancer patients in the St. See mission & focus areas ↑
How do I apply for a grant from M-a-S Charitable Foundation?
The foundation stated on its 2023 filing that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is M-a-S Charitable Foundation's EIN?
M-a-S Charitable Foundation's EIN (Employer Identification Number) is 26-6221791. IRS Form 990 filing data is available on this page for 2020–2024.
Does M-a-S Charitable Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). M-a-S Charitable Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/m-a-s-charitable-foundation-morg_42dd1fb604c54ab9bdee85b63270629c
BibTeX
@misc{grantable_266221791_2026,
author = {{Grantable}},
title = {{M-a-S Charitable Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/m-a-s-charitable-foundation-morg_42dd1fb604c54ab9bdee85b63270629c},
note = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from M-a-S 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.
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