PERSON
BillionairesMarilyn Simons
1938–2024 (age 86)
Marilyn Simons is an American philanthropist and president of the Simons Foundation, a major scientific research charity. She holds a net worth of approximately $32.5 billion USD as of 2025.
Records
1 metric · 1 record
Net Worth
1 recordWhat countsAnnual Forbes list value — one row per year; “current” = the latest year's row.
- 2025Jan 1, 2025$32.5Bsrc
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Independently confirmed by a credible publisher.
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