Jim Simons

Jim Simons is the founder of Renaissance Technologies, an esteemed quantitative trading hedge fund firm that manages about $55 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 employees.

Simons has given $2.7 billion to philanthropic causes. His foundation is the primary funder of Math For America. He also supports autism research.

In September 2021, Renaissance executives agreed to pay $7 billion to the IRS to settle a tax dispute over trades made by the Medallion Fund.