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

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

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

Originally issued by Lincoln during the Civil War in 1863, the proclamation declared enslaved people in the Confederate ...

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

Griffin paid a record $13.7M for the 13th Amendment and $4.4 million for the Emancipation Proclamation. Both documents were ...

The hedge fund founder paid $13.7 million for a copy of the 13th Amendment and $4.4 million for the Emancipation Proclamation ...

Billionaire investor Ken Griffin's hedge funds at Citadel have all posted positive returns during a volatile 2025, led by the tactical trading fund. Citadel's multistrategy Wellington fund, its ...

Citadel founder Ken Griffin opened his remarks to incoming interns with a stark warning: in turbulent markets, “playing defense” is a losing proposition. He argued that traditional safe-haven ...

Citadel founder Ken Griffin paid $18.1 million for copies of the 13th Amendment and the Emancipation Proclamation signed by President Abraham Lincoln.

In the years since billionaire Ken Griffin pulled up stakes and led Citadel and his market-making firm Citadel Securities to South Florida, more hedge fund managers have followed in his wake ...

Ken Griffin finally unloads No. 9 Walton condos, at a loss of $23.5M JB Pritzker’s property tax bill will be nearly $1.29 million 4 Illinois cities have the highest property tax rates in the U.S.