Marilyn Simons & family

$32.55B

as of 03/13/26

About Marilyn Simons & family

Marilyn Simons is the widow of hedge fund legend Jim Simons, who died in 2024 at age 86.

She got a Ph.D. in economics from Stony Brook University, where she met Jim.

She chairs the $4.5 billion (assets) Simons Foundation, which is the primary funder of Math for America.

Simons also sits on the boards of Stony Brook's foundation and Rockefeller University, and she chairs the board of Cold Spring Harbor Laboratory.

Personal stats

Citizenship

United States of America

Source of wealth

Hedge funds

Residence

East Setauket, New York

Marital status

Widowed

Birth date

01/04/51 (age 75)

Self-made

inherited