Mostyn Foundation Inc
Mostyn Foundation Inc is a private foundation based in New York, NY. Its 2025 grants went to organizations working in areas including marine conservation, arts, journalism, health, and environmental restoration; the foundation’s filing says it makes contributions only to preselected charitable organizations.
Mostyn Foundation Inc at a glance
In short: Mostyn Foundation Inc gave $396K across 45 grants in 2025 (avg $9K), top state Florida. 53% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $396,000
- +2.6% vs 2024
- Grants made (2025)
- 45
- +55.2% vs 2024
- Average grant
- $8,800
- -33.9% vs 2024
- Median grant
- $5,000
- Total assets
- $6,170,429
- +12.6% vs 2024
- New grantees (estimate)
- 53% first-time grantees (24 of 45, 2025)
- Primary geography
- Florida (28% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Mostyn Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests for funds; it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 1330 6Th Avenue 38Th Floor, New York, NY 10019
Phone: (480) 305-2028
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Mostyn Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Wild Oceans Inc ($85K). Together the top 10 received $271K.
Grant Size Distribution
171 grants across all recorded years
The most common grant size was under $50K: 164 grants of 171 (96%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars went to recipients in Florida (28%), Virginia (21%), and New York (21%). California and the District of Columbia each accounted for 5%.
Grant Distribution by State
Share of 2025 grant dollars across all 45 itemized grants.
States
Cities
Is Mostyn Foundation Inc open to new grantees?
53%
first-time grantees, 2025
In 2025, 24 of 45 grantees (53%) were first-time recipients. First grants averaged $3K; repeat grants $16K. How we count
Medians: $1K first-time, $10K repeat.
- 44% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+2%). Method
- In 2025 it paid out 105% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). 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 2025, annual grant giving ranged from $342K (2020) to $426K (2021). In 2025 it made 45 grants totaling $396K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Wild Oceans Inc Waterford, VA | Marine Conservation | $85,000 |
| Free Arts of NYC New York, NY | General | $46,000 |
| Int'l Gamefish Association Dania Beach, FL | General | $30,000 |
| Guy Harvey Foundation Fort Lauderdale, FL | General Support | $28,000 |
| Diabetes Research Institute Hollywood, FL | General | $25,000 |
| Bonefish & Tarpon Trust Key Largo, FL | General | $17,000 |
| Alliance for Safety & Justice Oakland, CA | General | $10,000 |
| Bermuda Institute of Ocean New York, NY | General | $10,000 |
| Committee to Project Journalists New York, NY | General | $10,000 |
| Earth Allies Restoration Network Carbondale, CO | General | $10,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $6,170,429 | $1,162,040 | $469,910 | $396,000 | 45 | $396,000 | $1,089,984 | $376,670 |
| 2024 | $5,478,299 | $705,416 | $451,873 | $386,000 | 29 | $386,000 | $639,543 | $450,786 |
| 2023 | $5,224,755 | $425,614 | $436,384 | $369,000 | 34 | $369,000 | $358,230 | $350,163 |
| 2022 | $5,235,525 | $761,428 | $471,678 | $390,000 | 31 | $390,000 | $679,750 | $365,831 |
| 2021 | $4,945,775 | $855,269 | $492,019 | $426,000 | 32 | $426,000 | $789,250 | $394,719 |
| 2020 | $4,582,523 | $109,246 | $399,973 | $342,000 | 44 | — | $70,088 | $319,921 |
Under IRS private-foundation payout rules, Mostyn Foundation Inc reported a distributable amount of $377K for 2025 — 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 grants show support for a range of organizations. For example, Bonefish & Tarpon Trust describes its mission as conserving and restoring bonefish, tarpon, and permit fisheries and habitats. ProPublica describes itself as a nonprofit newsroom producing investigative journalism in the public interest, while the GroundTruth Project says it supports the next generation of journalists through field reporting and accountability reporting. Other 2025 recipients include organizations focused, in their own descriptions, on school meals, housing for a year-round community, and humanitarian aid and civil society in Ukraine.
Grantmaking
In filing year 2025, the foundation reported 45 grants totaling $396,000. Grants ranged from $500 to $85,000, with a median of $5,000. The largest grants included $85,000 to Wild Oceans Inc for marine conservation, $46,000 to Free Arts of NYC for general purposes, $30,000 to the International Gamefish Association for general purposes, and $28,000 to the Guy Harvey Foundation for general support. Other grants included $25,000 to the Diabetes Research Institute and $17,000 to Bonefish & Tarpon Trust.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Stephanie Choate as president, Nicholas E Christin as secretary, Timothy S Choate as co-president and trustee, and Bart Johnston as treasurer.
Mostyn Foundation Inc is led by Stephanie O. Choate, President since 2025 (on filings since 2020); none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Stephanie O. Choate
President
Trustee → President, 2025
On filings since 2020
0.5 hrs/week
No compensation reported
Timothy S. Choate
Co President & Trustee
Trustee → Co President & Trustee, 2025
On filings since 2020
0.5 hrs/week
No compensation reported
Bart Johnston
Treasurer
On filings since 2020
0.5 hrs/week
No compensation reported
Nicholas E. Christin
Secretary
On filings since 2020
0.5 hrs/week
No compensation reported
Former officers (1)
- Former: Arthur B. Choate (2020–2024) — President
Data from IRS Form 990 filings, 2020–2025. "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 Mostyn Foundation Inc
How much does Mostyn Foundation Inc give each year?
Mostyn Foundation Inc gave $396K across 45 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $386K across 29 grants.
What is Mostyn Foundation Inc's typical grant size?
Mostyn Foundation Inc's median grant in 2025 was $5,000, and its average grant was $8,800, across 45 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Mostyn Foundation Inc that year got $3K on average.
Where does Mostyn Foundation Inc give grants?
Mostyn Foundation Inc's top state is Florida, with 28% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Virginia (21%) and New York (21%). The most frequent recipient cities were New York, NY (6 grants) and Washington, DC (6 grants).
Does Mostyn Foundation Inc give general operating support?
Yes: 98% of Mostyn Foundation Inc's 2025 grants with a stated purpose (44 of 45) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Mostyn Foundation Inc's largest grantees?
Mostyn Foundation Inc's largest 2025 grantees include Wild Oceans Inc ($85,000), Free Arts of NYC ($46,000) and Int'l Gamefish Association ($30,000), according to its 2025 IRS Form 990-PF. Together they received 41% of its itemized 2025 grant dollars.
How large is Mostyn Foundation Inc?
Mostyn Foundation Inc reported $6.2M in total assets on its 2025 IRS Form 990-PF. It paid out $396K in qualifying distributions that year, against a required minimum of $377K (roughly 5% of its investment assets).
What does Mostyn Foundation Inc fund?
No mission statement for the foundation is provided. Its grants show support for a range of organizations. For example, Bonefish & Tarpon Trust describes its mission as conserving and restoring bonefish, tarpon, and permit fisheries and habitats. See mission & focus areas ↑
How do I apply for a grant from Mostyn Foundation Inc?
The foundation does not accept unsolicited requests for funds; it makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Mostyn Foundation Inc's EIN?
Mostyn Foundation Inc's EIN (Employer Identification Number) is 13-6171217. IRS Form 990 filing data is available on this page for 2020–2025.
Does Mostyn Foundation Inc 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
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 17, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 14, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS March 7, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 23, 2024)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 10, 2026)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS September 11, 2025)
- IRS filings on file for fiscal years 2020–2025
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Cite this profile
Grantable. (2026). Mostyn Foundation Inc funder profile. GrantGraph. Retrieved October 14, 2026, from https://grantable.co/funders/mostyn-foundation-inc-morg_c13cae110a7040dbbf975fd7809dc614
BibTeX
@misc{grantable_136171217_2026,
author = {{Grantable}},
title = {{Mostyn Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/mostyn-foundation-inc-morg_c13cae110a7040dbbf975fd7809dc614},
note = {Accessed 2026-10-14. 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 Mostyn Foundation Inc'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.
Mostyn Foundation Inc down — hundreds of funders to go?