Grants paid by The C Stephen and Frances B Foster Foundation Inc D/B/a Foster Foundation
EIN 04-2776591 · Weston, MA · Form 990-PF, Part XV
The C Stephen and Frances B Foster Foundation Inc D/B/a Foster Foundation of Weston, MA (EIN 04-2776591) reported 12 grants paid totaling $577,070 to 8 recipients in tax years 2018–2024, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$577,070
12 grants
Recipients
8
distinct organizations
Tax years
2018–2024
5 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 4 | $74,070 | — |
| 2020 | 3 | $250,000 | — |
| 2022 | 1 | $25,000 | — |
| 2023 | 2 | $83,000 | — |
| 2024 | 2 | $145,000 | — |
Top recipients
The 8 recipients receiving the most from The C Stephen and Frances B Foster Foundation Inc D/B/a Foster Foundation, by grants paid, out of 8 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Ocular Inflammation and Uveitis Foundation | U | Waltham, MA | 2 | $183,000 | 2024 |
| Mgh Endowment | U | Boston, MA | 4 | $120,000 | 2024 |
| Foundation of Massachsetts Eye and Ear | U | Boston, MA | 1 | $100,000 | 2020 |
| Duke University 56-0532129 | B | Durham, NC | 1 | $100,000 | 2020 |
| Foster Ocular Immunology Society | U | Leawood, KS | 1 | $33,000 | 2018 |
| Ocular Immunology and Uveitis Foundation 20-1891037 | C | Waltham, MA | 1 | $25,000 | 2018 |
| Massachusetts General Hospital Endowment 04-2121358 | D | Boston, MA | 1 | $15,000 | 2018 |
| Arvo | U | Rockville, MD | 1 | $1,070 | 2018 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 12 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2024 | Ocular Inflammation and Uveitis Foundation Waltham, MA | U | $125,000 | paid | TO SUPPORT RESEARCH | 202533159349101403 |
| 2024 | Mgh Endowment Boston, MA | U | $20,000 | paid | TO SUPPORT RESEARCH | 202533159349101403 |
| 2023 | Ocular Inflammation and Uveitis Foundation Waltham, MA | U | $58,000 | paid | TO SUPPORT RESEARCH | 202413179349102126 |
| 2023 | Mgh Endowment Boston, MA | U | $25,000 | paid | TO SUPPORT RESEARCH | 202413179349102126 |
| 2022 | Mgh Endowment Boston, MA | U | $25,000 | paid | TO SUPPORT RESEARCH | 202333189349101913 |
| 2020 | Duke University Durham, NC | B | $100,000 | paid | TO SUPPORT RESEARCH | 202141379349100014 |
| 2020 | Foundation of Massachsetts Eye and Ear Boston, MA | U | $100,000 | paid | TO SUPPORT RESEARCH | 202141379349100014 |
| 2020 | Mgh Endowment Boston, MA | U | $50,000 | paid | TO SUPPORT RESEARCH | 202141379349100014 |
| 2018 | Foster Ocular Immunology Society Leawood, KS | U | $33,000 | paid | TO SUPPORT RESEARCH | 201931579349100418 |
| 2018 | Ocular Immunology and Uveitis Foundation Waltham, MA | C | $25,000 | paid | TO SUPPORT RESEARCH | 201931579349100418 |
| 2018 | Massachusetts General Hospital Endowment Boston, MA | D | $15,000 | paid | TO SUPPORT RESEARCH | 201931579349100418 |
| 2018 | Arvo Rockville, MD | U | $1,070 | paid | TO SUPPORT EDUCATION | 201931579349100418 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.2 | 202533159349101403 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.1 | 202413179349102126 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202333189349101913 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202141379349100014 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201931579349100418 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/042776591.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.