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 ...

In July 2024, Griffin purchased a late Jurassic-era stegosaurus skeleton for a record-setting $44.6 million. Griffin has ...

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

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

Citadel boss Ken Griffin scoops up Abraham Lincoln-signed Emancipation Proclamation, 13th Amendment for $18.1M By Ariel Zilber Published June 30, 2025, 4:29 p.m. ET ...

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

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

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