Ken Griffin has sent legal letters threatening Sony Pictures over the representation of his company, Citadel, in “Dumb Money.” Citadel's involvement in the GameStop short squeeze event ...

Citadel has blasted the CEO of Trump Media—the parent company of Truth Social—after the executive accused the Ken Griffin-led ...

Ken Griffin's hedge fund is up over 30% this year, even while the broader market has sunk double digits over the same timeframe. October was another month of gains for Citadel's flagship hedge ...

Ken Griffin built Citadel into a powerful and hugely profitable player in the markets and is moving it to Miami. Here's what drives him. "JB? JB and I are not on speaking terms these days," said ...

Billionaire Citadel founder Ken Griffin returned to his Florida high school on Tuesday. He spoke about his "Call of Duty" addiction and bombing his chem exam. He also gave them advice on getting a ...

Billionaire Ken Griffin, who has expressed skepticism about ... and their families.” The Citadel founder backed former South Carolina governor and U.N. Ambassador Nikki Haley in the Republican ...

Ken Griffen ... casualties of Citadel's most recent cuts Citadel has also been aggressively adding tenured money managers. According to the recent Wall Street Journal report, Griffin's firm ...