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 private foundations' returns (990-PF) are not read here.

1. MASSACHUSETTS INSTITUTE OF TECHNOLOGY EIN 04-2103594

   Received $4,040,906 from RETT SYNDROME RESEARCH TRUST INC · 2022, 2023 returns

   Its grants paid, 2022: $636,241,000

   Its grants paid, 2023: $683,641,000

   • Technology Review Inc · 2023

     $5,569,447

   • Technology Review Inc · 2022

     $4,211,734

   • Beta Nu House Corporation · 2022

     $2,288,285

   • Landmark Bio PBLLC · 2022

     $1,000,000

   • MIT International Inc · 2022

     $973,000

2. UNIVERSITY OF MASSACHUSETTS AMHERST FOUNDATION INC EIN 54-2084125

   Received $3,005,005 from RETT SYNDROME RESEARCH TRUST INC · 2022, 2023 returns

   Its grants paid, 2022: $988,121

   Its grants paid, 2023: $11,741,782

   • UNIVERSITY OF MASSACHUSETTS AMHERST · 2023

     $10,598,741

   • UNIVERSITY OF MASSACHUSETTS AMHERST · 2022

     $988,121

3. REGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGO EIN 95-6006144

   Received $751,130 from RETT SYNDROME RESEARCH TRUST INC · 2022, 2023 returns

   No itemized grants on its 2022, 2023 returns.

4. OREGON HEALTH AND SCIENCE UNIVERSITY FOUNDATION EIN 23-7083114

   Received $28,750 from RETT SYNDROME RESEARCH TRUST INC · 2022 return

   Its grants paid, 2022: $133,931,087

   • OREGON HEALTH & SCIENCE UNIVERSITY · 2022

     $73,904,528

   • OREGON HEALTH & SCIENCE UNIVERSITY · 2022

     $31,420,106

   • OREGON HEALTH & SCIENCE UNIVERSITY · 2022

     $6,115,341

   • OREGON HEALTH & SCIENCE UNIVERSITY · 2022

     $6,013,160

   • OREGON HEALTH & SCIENCE UNIVERSITY · 2022

     $5,419,262

The API serves every itemized grant, in both directions.