Each figure is one return, as filed. A grantee's grants out are not shown to be the money it received: money is interchangeable, and two organizations' tax years can cover different months, so a grant received in one organization's 2023 can sit beside grants made in the other's 2023 without being the same dollars. Only grants over $5,000 are itemized, and a private foundation's grants are not followed here: it reports them in its 990-PF's Part XV, which names no recipient EIN to join.

1. AMERICAN CANCER SOCIETY INC EIN 13-1788491

   Received $1,100,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2022, 2023, 2024, 2025 returns

   Its grants paid, 2022: $190,934,828

   Its grants paid, 2023: $194,769,766

   Its grants paid, 2024: $24,540,185

   • AMERICAN CANCER SOCIETY CANCER ACTION NETWORK INC · 2022

     $36,352,310

   • ACS Cancer Action Network · 2023

     $34,045,757

   • American Cancer Society Cancer Action Network · 2024

     $9,602,782

   • The University of Texas Health Science Center at San Antonio · 2022

     $6,719,500

   • Yale University · 2023

     $5,618,158

2. MELANOMA RESEARCH ALLIANCE FOUNDATION EIN 26-1636099

   Received $240,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023, 2024 returns

   Its grants paid, 2023: $6,600,342

   Its grants paid, 2024: $13,359,283

   • COLUMBIA UNIVERSITY IRVING MEDICAL CENTER · 2024

     $1,155,000

   • H LEE MOFFITT CANCER CENTER & RESEARCH INSTITUTE INC · 2024

     $1,155,000

   • MEMORIAL SLOAN KETTERING CANCER CENTER (MSK) · 2024

     $1,088,210

   • MASSACHUSETTS GENERAL HOSPITAL (MASS GENERAL) · 2024

     $1,025,000

   • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA SAN FRANCISCO · 2024

     $1,000,000

3. WASHINGTON UNIVERSITY EIN 43-0653611

   Received $125,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023, 2025 returns

   Its grants paid, 2023: $579,322,578

   • REGENTS OF THE UNIVERSITY OF CALIFORNIA · 2023

     $4,647,844

   • UNIVERSITY OF PITTSBURGH · 2023

     $4,221,543

   • REGENTS OF THE UNIVERSITY OF MINNESOTA · 2023

     $4,140,079

   • COLUMBIA UNIVERSITY · 2023

     $2,883,919

   • UNIVERSITY OF NORTH CAROLINA · 2023

     $2,846,842

4. ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI EIN 13-6171197

   Received $104,040 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023 return

   Its grants paid, 2023: $10,365,992

   • THE MOUNT SINAI HOSPITAL · 2023

     $761,190

   • THE MOUNT SINAI MEDICAL CENTER · 2023

     $761,190

5. UC HEALTHCARE SYSTEM EIN 27-3850988

   Received $104,040 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023 return

   Its grants paid, 2023: $32,457,545

   • UNIVERSITY OF CINCINNATI · 2023

     $31,728,756

   • UPTOWN CONSORTIUM INC · 2023

     $290,000

   • VILLAGE LIFE OUTREACH PROJECT · 2023

     $150,000

   • CENTER FOR RESPITE CARE · 2023

     $125,000

   • CINCINNATI CHILDREN'S HOSPITAL MEDICAL CENTER · 2023

     $100,000

6. THE FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH EIN 11-2673595

   Received $101,040 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2024 return

   Its grants paid, 2024: $0

   No itemized grants on its 2024 return.

7. MEMORIAL SLOAN-KETTERING CANCER CENTER EIN 13-1624182

   Received $100,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2022, 2023, 2025 returns

   No itemized grants on its 2022, 2023, 2025 returns.

8. INSTITUTE FOR CANCER RESEARCH EIN 23-6296135

   Received $100,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023 return

   Its grants paid, 2023: $1,113,868

   • Fox Chase Cancer Center Medical Group Inc · 2023

     $583,894

   • The American Oncologic Hospital · 2023

     $529,974

9. AMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE EIN 23-7057224

   Received $75,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2024, 2025 returns

   Its grants paid, 2024: $718,816

   • UT MD ANDERSON CANCER CENTER · 2024

     $90,000

   • UNIVERSITY OF WASHINGTON · 2024

     $60,000

   • UNIVERSITY OF KENTUCKY · 2024

     $45,000

   • THE MEDICAL UNIVERSITY OF SOUTH CAROLINA · 2024

     $35,000

   • UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER · 2024

     $35,000

10. NRG ONCOLOGY FOUNDATION INC EIN 90-0912747

    Received $75,000 from AMERICAN SOCIETY FOR RADIATION ONCOLOGY · 2023, 2024, 2025 returns

    Its grants paid, 2023: $0

    Its grants paid, 2024: $0

    No itemized grants on its 2023, 2024, 2025 returns.

The API serves every itemized grant, in both directions.