Citadel ended September with 91% fewer Palantir shares, despite the stock's eye-popping gains, after selling about 5.2 ...

Warren Buffett and Ken Griffin share a few things in common. First, they're both billionaires and highly respected investors.

Billionaire hedge fund manager Ken Griffin just raised Citadel's position in global-consulting powerhouse Accenture.

Ken Griffin started the Citadel hedge fund in 1990. In the third quarter, Griffin and Citadel more than tripled its stake in ...

Jeff Yass and Ken Griffin are in a league of their own. Yass is the co-founder and managing director at the global ...

GOP Megadonor Ken Griffin's fund Citadel Advisors LLC made a major shift within the AI-linked investment universe by slashing ...

Ken Griffin urged Trump to moderate immigration and inflation policies, warned tax cuts risk debt, and is open to selling a ...

Griffin has been happy with how Sequoia, which is a minority shareholder in Citadel Securities, has helped his market maker.

Citadel Securities founder Ken Griffin said the market-making firm won’t go public anytime soon amid the “quilt work” of ...