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

"Billionaire" and "successful hedge fund manager" are titles that carry significant weight on Wall Street. These and others ...

Ken Griffin has bought a unit in NYC's most powerful co-op, 740 Park Ave. Early Grace Hedge fund billionaire Ken Griffin has expanded his high-end real estate empire with the $45 million purchase ...

The identity of the buyer was unclear at the time, but the Wall Street Journal reported it was Citadel founder Ken Griffin who plunked down $45 million for the home at 740 Park Avenue.

The Town Council narrowly approved the plans to replace four groins at billionaire Ken Griffin's estate. Griffin will foot ...

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 ...

These and others apply to Ken Griffin, CEO and founder of Citadel. It's no surprise that investors and analysts carefully scrutinize the hedge fund's every move, of which there were several ...