Billionaire investor Ken Griffin's flagship hedge fund eked out a small gain in a volatile January, according to a person ...

Citadel’s Ken Griffin is forging ahead with his new Park Avenue office tower, filing plans with the city as the developers ...

Meet the plugged-in players whom billionaire Ken Griffin is relying on to get Citadel’s new headquarters off the ground ...

Billionaire hedge fund founder Ken Griffin has broken records for some of his purchases — from previously buying the most expensive property in Miami history to acquiring a stegosaurus skeleton ...

Griffin’s $500,000 donation to Levine Cava, a Democrat, in her race against a field of mostly Republican challengers drew national attention in June because of his standing as a top GOP donor ...

Ken Griffin is partnering with Related Cos. to help develop the massive new Miami headquarters to house his Citadel ...

Billionaire Ken Griffin has tapped Related Companies to develop the global headquarters of his financial firms, hedge fund ...

Citadel CEO Ken Griffin says it was a “mistake” not to buy crypto sooner, but that doesn’t mean he’s suddenly a fan of Bitcoin. “Of course, I wish I bought something that trades at 100 ...

Billionaire Ken Griffin, who has expressed skepticism about Donald Trump in the past, weighed in with a statement of support late Sunday following the attempted assassination of the former ...