Ken Griffin

Kenneth Cordele Griffin (born October 15, 1968) is an American hedge fund manager, entrepreneur and investor. He is the founder, chief executive officer, co-chief investment officer, and 80% owner of Citadel LLC, a multinational hedge fund. He also owns Citadel Securities, one of the largest market makers in the United States. As of January 2026, Griffin had an estimated net worth of $51.2 billion, making him the world's 34th-richest person. source: https://en.wikipedia.org/wiki/Ken_Griffin