Ken Griffin is pouring millions of dollars into an effort to block recreational weed from becoming legalized in Florida. In a Friday op-ed for the Miami Herald, the billionaire founder of Citadel ...

Citadel founder Ken Griffin returned to his Florida high school with his mom in tow to talk to students. Here's what he told ...

Billionaire hedge fund manager Ken Griffin is seeking to sell ... A company tied to Griffin’s Miami-based Citadel owns the 9,200-square-foot condo at 1000 Biscayne Boulevard, property records ...

Spirit Airlines is on track to emerge from Chapter 11 bankruptcy thanks to the private takeover of multibillion-dollar bondholders like Ken Griffin's Citadel Advisors. STORY HIGHLIGHTS Spirit ...