Grants paid by Stephen Mack & Kelly Mack Foundation Inc
EIN 20-3901963 · New York, NY · Form 990-PF, Part XV · NTEE T20
Stephen Mack & Kelly Mack Foundation Inc of New York, NY (EIN 20-3901963) reported 27 grants paid totaling $2,663,621 to 17 recipients in tax years 2022–2024, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$2,663,621
27 grants
Recipients
17
distinct organizations
Tax years
2022–2024
3 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2022 | 7 | $667,287 | — |
| 2023 | 10 | $910,667 | — |
| 2024 | 10 | $1,085,667 | — |
Top recipients
The 17 recipients receiving the most from Stephen Mack & Kelly Mack Foundation Inc, by grants paid, out of 17 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Monterey Peninsula Foundation 94-2541783 | B | Monterey, CA | 2 | $595,000 | 2023 |
| Musicians On Call 13-4067116 | B | Nashville, TN | 2 | $400,000 | 2024 |
| Nyu Langone Health 47-2613531 | C | New York, NY | 2 | $400,000 | 2024 |
| 92y | U | New York, NY | 3 | $362,621 | 2024 |
| Nyu | U | New York, NY | 2 | $355,000 | 2024 |
| Georgetown University 23-7333567 | B | Washington, DC | 2 | $237,500 | 2024 |
| American Friends of Or National Mission 30-0208763 | C | New York, NY | 1 | $100,000 | 2023 |
| Riverdale Country School 13-1740483 | B | Bronx, NY | 2 | $75,000 | 2024 |
| Team Impact 45-1837673 | B | Quincy, MA | 2 | $60,000 | 2023 |
| Charities Aid Foundation America | U | Alexandria, MA | 1 | $30,000 | 2023 |
| Boston Children's Hospital Trust | U | Boston, MA | 2 | $15,000 | 2024 |
| The Schwarzman Animal Medical Center | U | New York, NY | 1 | $10,000 | 2024 |
| Challenged Athletes Foundation 33-0739596 | C | San Diego, CA | 1 | $10,000 | 2022 |
| Home Stretch Farm and Sanctuary 47-1000540 | C | Saddle Brook, NJ | 1 | $8,000 | 2023 |
| Northside Center for Child Developemnt | U | New York, NY | 1 | $2,500 | 2023 |
| Lustgarten Foundation | U | Uniondale, NY | 1 | $1,500 | 2024 |
| Atlantic Golf Club Educational Fund 81-5467360 | B | Bridgehampton, NY | 1 | $1,500 | 2024 |
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 27 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2024 | Nyu New York, NY | U | $305,000 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Nyu Langone Health New York, NY | C | $250,000 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Musicians On Call Nashville, TN | B | $250,000 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | 92y New York, NY | U | $122,667 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Georgetown University Washington, DC | B | $87,500 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Riverdale Country School Bronx, NY | B | $50,000 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | The Schwarzman Animal Medical Center New York, NY | U | $10,000 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Boston Children's Hospital Trust Boston, MA | U | $7,500 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Lustgarten Foundation Uniondale, NY | U | $1,500 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2024 | Atlantic Golf Club Educational Fund Bridgehampton, NY | B | $1,500 | paid | EXEMPT PURPOSE | 202533149349101398 |
| 2023 | Monterey Peninsula Foundation Monterey, CA | B | $400,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Georgetown University Washington, DC | B | $150,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | 92y New York, NY | U | $120,167 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | American Friends of Or National Mission New York, NY | C | $100,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Nyu New York, NY | U | $50,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Charities Aid Foundation America Alexandria, MA | U | $30,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Team Impact Quincy, MA | B | $25,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Riverdale Country School Bronx, NY | B | $25,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Home Stretch Farm and Sanctuary Saddle Brook, NJ | C | $8,000 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2023 | Northside Center for Child Developemnt New York, NY | U | $2,500 | paid | EXEMPT PURPOSE | 202443199349102334 |
| 2022 | Monterey Peninsula Foundation Monterey, CA | B | $195,000 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | Musicians On Call Nashville, TN | C | $150,000 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | Nyu Langone Health New York, NY | C | $150,000 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | 92y New York, NY | U | $119,787 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | Team Impact Quincy, MA | B | $35,000 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | Challenged Athletes Foundation San Diego, CA | C | $10,000 | paid | EXEMPT PURPOSE | 202333119349100013 |
| 2022 | Boston Childrens Hospital Trust Boston, MA | U | $7,500 | paid | EXEMPT PURPOSE | 202333119349100013 |
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 | 202533149349101398 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.1 | 202443199349102334 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202333119349100013 |
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/203901963.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.