Marilyn Simons
United StatesentrepreneurFemale5.0Global Dominance: 0.01%Marilyn Simons is a prominent American investor and philanthropist, recognized as the wealthiest new entrant in Forbes' 2025 billionaires list, with a net worth of $31 billion. She is notably the widow of Jim Simons, the founder of Renaissance Technologies, and has built her fortune through investments and management of her late husband's estate.
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Recent news mentions
Marilyn Simons shares a fortune with her stepchildren, including Elizabeth Simons.
Democratic Socialists challenge Democrats in the Age of the Super PACFox News·United States· 2026-08-10
United States· 2026-08-10
Marilyn Simons & family have a net worth of $32.5 billion.
Meet the 10 Richest Women on the 2025 Forbes 400 listDaily Graphic – state-owned Ghanaian newspaper, est. 1950·
Ghana· 2025-09-10
Ghana· 2025-09-10
Marilyn Simons bumped her philanthropy score from 4 to 5 as her lifetime giving hit $9.4 billion.
Here is why America's Richest Billionnaires are getting richer, according to ForbesDaily Graphic – state-owned Ghanaian newspaper, est. 1950·Ghana· 2025-09-09
Ghana· 2025-09-09
Marilyn Simons is the richest new entrant with a net worth of $31 billion.
Lista de multimillonarios de Forbes 2025: ¿quiénes son los más ricos del mundo?El Nacional·
Venezuela· 2025-04-02
Venezuela· 2025-04-02
