Grants paid by Gwen L Kosinski Foundation Inc C/O East End Financial Group
EIN 58-2683423 · Riverhead, NY · Form 990, Schedule I · NTEE H124
Gwen L Kosinski Foundation Inc C/O East End Financial Group of Riverhead, NY (EIN 58-2683423) reported 15 grants paid totaling $375,000 to 4 recipients in tax years 2022–2025, on Form 990, Schedule I. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$375,000
15 grants
Recipients
4
distinct organizations
Tax years
2022–2025
4 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2022 | 3 | $75,000 | — |
| 2023 | 4 | $95,000 | — |
| 2024 | 4 | $100,000 | — |
| 2025 | 4 | $105,000 | — |
Top recipients
The 4 recipients receiving the most from Gwen L Kosinski Foundation Inc C/O East End Financial Group, by grants paid, out of 4 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| National Brain Tumor Society 04-3068130 | A | Newton, MA | 4 | $130,000 | 2025 |
| Cedars Sinai Medical Center 95-1644600 | A | Los Angeles, CA | 4 | $100,000 | 2025 |
| Memorial Sloan Kettering 13-1924236 | A | New York, NY | 4 | $100,000 | 2025 |
| East End Hospice 11-2878502 | A | Westhampton Beach, NY | 3 | $45,000 | 2025 |
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 15 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | National Brain Tumor Society Newton, MA | A | $35,000 | paid | MEDICAL RESEARCH | 202601339349302620 |
| 2025 | Memorial Sloan Kettering New York, NY | A | $25,000 | paid | MEDICAL RESERCH | 202601339349302620 |
| 2025 | Cedars Sinai Medical Center Los Angeles, CA | A | $25,000 | paid | MEDICAL RESERCH | 202601339349302620 |
| 2025 | East End Hospice Westhampton Beach, NY | A | $20,000 | paid | MEDICAL CARE | 202601339349302620 |
| 2024 | National Brain Tumor Society Newton, MA | A | $35,000 | paid | MEDICAL RESEARCH | 202531329349304553 |
| 2024 | Memorial Sloan Kettering New York, NY | A | $25,000 | paid | MEDICAL RESERCH | 202531329349304553 |
| 2024 | Cedars Sinai Medical Center Los Angeles, CA | A | $25,000 | paid | MEDICAL RESERCH | 202531329349304553 |
| 2024 | East End Hospice Westhampton Beach, NY | A | $15,000 | paid | MEDICAL CARE | 202531329349304553 |
| 2023 | National Brain Tumor Society Newton, MA | A | $35,000 | paid | MEDICAL RESEARCH | 202411359349305126 |
| 2023 | Memorial Sloan Kettering New York, NY | A | $25,000 | paid | MEDICAL RESERCH | 202411359349305126 |
| 2023 | Cedars Sinai Medical Center Los Angeles, CA | A | $25,000 | paid | MEDICAL RESERCH | 202411359349305126 |
| 2023 | East End Hospice Westhampton Beach, NY | A | $10,000 | paid | MEDICAL CARE | 202411359349305126 |
| 2022 | National Brain Tumor Society Newton, MA | A | $25,000 | paid | MEDICAL RESEARCH | 202311739349300516 |
| 2022 | Memorial Sloan Kettering New York, NY | A | $25,000 | paid | MEDICAL RESERCH | 202311739349300516 |
| 2022 | Cedars Sinai Medical Center Los Angeles, CA | A | $25,000 | paid | MEDICAL RESERCH | 202311739349300516 |
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 |
|---|---|---|---|---|---|
| 990 | 2025 | 2025-12-31 | not stated | 2025v4.0 | 202601339349302620 |
| 990 | 2024 | 2024-12-31 | not stated | 2024v5.0 | 202531329349304553 |
| 990 | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202411359349305126 |
| 990 | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202311739349300516 |
Derived from IRS Form 990 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/582683423.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.