An internal company memo revealed the person is a neurologist who previously worked at Morgan Stanley and is a Harvard grad.

The stock market has proven resilient in the face of President Donald Trump's aggressive trade war and conflict in the Middle ...

Billionaire hedge fund manager Ken Griffin added two of the most iconic artifacts in American history to his growing ...

Zohran Mamdani wants Ken Griffin to pay more tax on his Central Park penthouse. We break down what it means for homeowners ...

Ken Griffin’s hedge fund Citadel has been outshone by smaller rivals so far this year, as the firm was stung by the market ...

The hedge fund billionaire, who voted for Trump, said the Republicans’ “Big Beautiful Bill” “will unquestionably add several ...

Billionaire developer and Palm Beach resident Ken Griffin's most recent purchases include rare copies of the Emancipation ...

Citadel's Ken Griffin breaks Sotheby's record with bids for two Civil War-era documents. Crain’s Laura Turbay discusses with ...

Billionaire Citadel boss Ken Griffin plans to develop a new skyscraper that would serve as the anchor of the investment firm’s growing presence in New York City, according to a published report.

Ken Griffin, founder of Citadel LLC, advises surrounding oneself with smarter minds for career growth. He also warns against being the smartest person in the room.

Billionaire investor Kenneth Griffin, who started his hedge fund in his dormitory at Harvard University, is donating $300 million to his alma mater, raising the total amount of his gifts to the ...