Jim Simons

James Simons is the founder of Renaissance Technologies, a respected quantitative hedge fund firm that manages $60 billion. He founded Renaissance Technologies in 1982 and retired in 2010, but he still plays a role at Renaissance and benefits from its funds. Renaissance Technologies is famous for its Medallion Fund, a $10 billion black-box strategy that is only open to Renaissance's owners and employee.Simons has given $2.7 billion to philanthropic causes over his lifetime. His Simons Foundation is the primary funder of Math For America.