The approach was wildly successful, helping Simons and his wife build over the years an estimated net worth of more than $30 billion. James Harris Simons was born in Newton, Massachusetts.

James “Jim” Simons, a renowned mathematician who built a fortune on Wall Street and then became one of the nation’s biggest philanthropists, died May 10 at his home in Manhattan. He was 86.

Simons Foundation announced the death of its co-founder, James Harris Simons, at the age of 86 in New York City on Friday. He was an award-winning mathematician, an intelligent investor and well ...

James Harris Simons, co-founder of the Simons Foundation, passed away at 86. He is survived by his wife Marilyn Hawrys Simons ...