J.B. Pritzker purchased the two ritzy condos his political nemesis Ken Griffin recently sold in Chicago. The billionaire ...

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

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

Microsoft is a major player in AI through its partnership with OpenAI and its Azure Cloud infrastructure. Citadel sold much ...

Billionaire businessman Ken Griffin on Thursday said he would contemplate selling a piece of his $65B hedge fund Citadel.

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

The Republican megadonor Ken Griffin expressed concerns about Donald Trump's policies.

Billionaire investor Ken Griffin has been known for making some rather eccentric purchases. Griffin has amassed his fortune ...

I am gravely concerned that the rise of tariffs puts us on a slippery slope towards crony capitalism,” the billionaire ...

The Governor and First Lady may feel up to the job, as they've been serial rehabbers at a portfolio of homes and horse farms ...

The Tribune reports that Griffin — who left Chicago for Florida in 2022 after complaining about the political climate in ...