Billionaire hedge fund manager Ken Griffin is seeking to sell a penthouse he owns at Zaha Hadid-designed One Thousand Museum.

Ken Griffin has sent legal letters threatening Sony Pictures over the representation of his company, Citadel, in “Dumb Money.” Citadel's involvement in the GameStop short squeeze event ...

Ken Griffin built Citadel into a powerful and hugely profitable player in the markets and is moving it to Miami. Here's what drives him. "JB? JB and I are not on speaking terms these days," said ...

(Bloomberg) -- At Carbone Beach, Elon Musk and Ken Griffin mingled over red wine ... experience had to fork out over $1,700 ...

The Town Council narrowly approved the plans to replace four groins at billionaire Ken Griffin's estate. Griffin will foot the bill and work will be done under the town's permits. The process for Palm ...

The Miami-based firm, headed by Ken Griffin, delivered $25 billion in ... got walloped from a massive short bet on GME shares. Sony Pictures made a movie about the movement, dubbed "Dumb Money ...

52nd St.; and mega-billionaire investor Ken Griffin. Citadel and Citadel Securities, separate companies that Griffin leads, will be the skyscraper’s anchor tenants with at least 850,000 square feet.

Ken Griffin now ranks 36th in the Bloomberg Billionaires Index with a total net worth of $41.8 billion.Apu Gomes/Getty Images For multinational companies, tariffs introduce instability that ...