The formerly Chicago-based billionaire The sales bring to a close one of the stranger odysseys in high-end Chicago-area real ...

I n February, high-end Miami Beach real-estate agents buzzed that billionaire hedge-fund manager Ken Griffin had purchased ...

Ken Griffin’s losses on luxury Chicago real estate expanded to almost $30 million with sales of the final two floors out of the four he assembled within the No. 9 West Walton Street condo tower.

Ken Griffin and Home Depot founder Ken Langone join a growing list of executives blasting the president’s agenda.

Billionaire developer Ken Griffin has donated another $5 million toward the Cox Science Center and Aquarium's expansion, raising his total contributions to $13 million, the center announced April 11.

The founder and CEO of Citadel pledged $8 million in 2022. The latest gift raises his total contributions to $13 million.