BillionaireNet
family
M
Rank #62
UNITED STATESFinance & InvestmentsHedge funds

Marilyn Simons & family

Net Worth
$32.549B
0% (24h)
Marilyn Simons is the widow of Jim Simons, the founder of Renaissance Technologies. She is a philanthropist, and co-founder of the Simons Foundation, which supports scientific research and education. Her estimated net worth is $32.5 billion, stemming from her late husband's hedge fund success. She is 74 years old and resides in East Setauket, New York. Simons earned a B.A. and Ph.D. in Economics from Stony Brook University. She actively supports STEM research, education, and outreach.

The Full Dossier

Early Life

Marilyn Hawrys Simons was born in Brightwaters, New York, and has working-class roots. Her family background influenced her values of diligence, humility, and a focus on results. She was the first woman in her family to attend higher education, earning a B.A. and a Ph.D. in economics from the State University of New York at Stony Brook.

Rise to Success

Marilyn Simons is the co-founder of the Simons Foundation, which she established with her late husband, Jim Simons, in 1994. Jim Simons founded Renaissance Technologies, a hedge fund that pioneered quantitative trading. The firm is known for its Medallion Fund, which has generated significant returns over the years.

Key Business Strategies

Marilyn Simons chairs the Simons Foundation, which funds research in mathematics, basic sciences, neuroscience, autism, and other areas. She is focused on supporting STEM research, education, and outreach.

Philanthropy

Marilyn Simons is a dedicated philanthropist who supports basic science research, education, and outreach. She is involved in various initiatives, including the Cold Spring Harbor Laboratory and the East Harlem Scholars Academies. The Simons Foundation has provided significant funding for autism research.

Career Timeline

2024

Widowed

Her husband, Jim Simons, passed away in 2024.

2014

Founded the Stony Brook Women's Leadership Council

Created a mentoring program for undergraduate women at Stony Brook University.

1994

Co-founded the Simons Foundation

Established a foundation to support research in mathematics and basic sciences with her husband, Jim Simons.

Philanthropic Impact

Science and Education$4.5B

Simons Foundation

Supports research in mathematics, basic sciences, and other fields.

Science and EducationUnknown

Cold Spring Harbor Laboratory

Serves as chair of the board of trustees.

EducationUnknown

East Harlem Scholars Academies

Supports K-12 education for underserved communities.

EducationUnknown

Math for America

Primary funder.

Wealth Trajectory