Jim Simons
Jim Simons.
  • Jim Simons, the billionaire hedge-fund manager, has died.
  • The legendary investor was 86.
  • Simons founded Renaissance Technologies and was a codebreaker, mathematician, and philanthropist.

Jim Simons, the legendary billionaire hedge-fund manager who founded the wildly successful Renaissance Technologies, died on Friday, his foundation announced on its website.

He was 86 years old.