Citadel’s Ken Griffin is forging ahead with his new Park Avenue office tower, filing plans with the city as the developers gear up for a public review of the project starting in March.

In less than three years, billionaire Ken Griffin has turned into one of South Florida’s biggest real estate tycoons. The commercial properties are a 4.2-acre assemblage in Miami’s Brickell ...

Billionaire investor Ken Griffin's flagship hedge fund climbed in a volatile January, according to a person familiar with the returns. Citadel's multistrategy flagship Wellington fund rose 1.4% ...

The long-touted Midtown skyscraper being developed through a partnership that includes billionaire Ken Griffin is scheduled to kick off its public review next month, according to an application ...