Ken Griffin

{ "bio": [ "Ken Griffin founded and runs Citadel, a Miami-based hedge fund firm that manages $68 billion in assets.", "Griffin founded Citadel in 1990 but first began trading from his Harvard dorm in 1987. He put a satellite dish on the roof to get real-time stock quotes.", "Citadel is the world's most profitable hedge fund and has generated $83 billion in net gains since inception in 1990, according to LCH Investments.", "Citadel Securities, one of Wall Street's biggest market-making firms, is responsible for one of every four stock trades in the U.S.", "Griffin has given some $2.4 billion to philanthropic causes. Recent beneficiaries include Memorial Sloan Kettering Cancer Center and nonprofit hospitals in Miami." ], "about": [ "Griffin bought rare editions of the Emancipation Proclamation and the Thirteenth Amendment, signed by Abraham Lincoln, to be loaned for public display in 2025.", "Griffin's first job was selling Franklin Mint collectibles." ] }