Who founded the American investment management firm that managed Numerai's investment group?
Numerai:  Numerai's investment group was led by Howard Morgan of Renaissance Technologies, and its investors include Naval Ravikant. Renaissance Technologies: Renaissance Technologies LLC is an East Setauket, New York-based American investment management firm founded in 1982 by James Simons, an award-winning mathematician and former Cold War code breaker, which specializes in systematic trading using only quantitative models derived from mathematical and statistical analyses.
James Simons