Martha P Mack Foundation
Historical funder research: IRS Form 990-PF filings from US private foundations, showing who funded what in past years. This is not a list of currently open grant calls, and we do not track open RFPs from private foundations. From public IRS Form 990-PF filings (latest on file for this funder: tax year 2024). Coverage: tax years 2019–2025. Freshness: the IRS releases these returns 1.5–2+ years after the tax year ends, so 2025 is still partial and a funder's newest grants may not appear yet. Last updated: November 14, 2026. Filings can contain errors, so confirm current priorities and deadlines with the funder before applying.
Year 2025 is still partial because many returns have not been filed or released yet. That is a freshness issue — coverage in our dataset is tax years 2019–2025.
Only 52.6% of this funder's organizational grants could be linked to an IRS cause code.
The foundation checked the box saying it contributes only to preselected organizations and doesn't accept unsolicited requests.
- Form & materials
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- Deadlines
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- Restrictions
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| Recipient | Location | Purpose (as filed) | Amount | Tax yr |
|---|---|---|---|---|
| Scripps Health Foundation | La Jolla, CA | FOR SUPPORT OF DAILY | $500,000 | 2024 |
| Sanford Burnham Prebys Medical Discovery Institute | La Jolla, CA | FOR SUPPORT OF DAILY | $500,000 | 2024 |
| Uc San Diego Foundation | La Jolla, CA | FOR SUPPORT OF DAILY | $405,000 | 2024 |
| Sharp Healthcare Foundation | San Diego, CA | FOR SUPPORT OF DAILY | $100,000 | 2024 |
| Salk Institute for Biological Studies | La Jolla, CA | FOR SUPPORT OF DAILY | $100,000 | 2024 |
| The Scripps Research Institute | La Jolla, CA | FOR SUPPORT OF DAILY | $100,000 | 2024 |
| The Salvation Army | Rancho Palos Verdes, CA | FOR SUPPORT OF DAILY | $50,000 | 2024 |
| Southern Methodist University | Dallas, TX | FOR SUPPORT OF DAILY | $25,000 | 2024 |
| La Jolla Institute of Immunology | La Jolla, CA | FOR SUPPORT OF DAILY | $5,000 | 2024 |
| Scripps Health | San Diego, CA | GENERAL OPERATING | $600,000 | 2023 |
| University of San Diego | San Diego, CA | GENERAL OPERATING | $250,000 | 2023 |
| Sanford Burnham Prebys Medical Discovery | La Jolla, CA | GENERAL OPERATING | $200,000 | 2023 |
| U C San Diego Foundation | La Jolla, CA | GENERAL OPERATING | $100,000 | 2023 |
| Regents of the University of California | La Jolla, CA | GENERAL OPERATING | $100,000 | 2022 |
| The Salvation Army Ventura Residences In | RCH Palos VRD, CA | GENERAL OPERATING | $100,000 | 2022 |
| Salk Institute for Biological Studies | La Jolla, CA | GENERAL OPERATING | $100,000 | 2022 |
| Sanford Burnham Prebys Medical Discovery | La Jolla, CA | GENERAL OPERATING | $100,000 | 2022 |
| Support the Enlisted Project Inc | San Diego, CA | GENERAL OPERATING | $30,000 | 2022 |
| Southern Methodist University | Dallas, TX | GENERAL OPERATING | $26,000 | 2022 |
Grants to individuals are counted but not named.
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