Ken Griffin

Ken Griffin Revealed as 740 Park Avenue Co-op Buyer

Ken Griffin revealed as buyer of Julia Koch’s 740 Park Avenue co-op

Socialite and billionaire widow sold 18-room spread for $45M

Ken Griffin: Trump’s tariffs and rhetoric are “huge mistake”

Ken Griffin: Trump’s tariffs and rhetoric are “huge mistake”

Citadel founder fears chaos of president’s actions could damage economy

$35M Winnetka listing has buyer in steamy luxury climate

$35M Winnetka listing has buyer in steamy luxury climate

Deal near that price would make it Chicagoland’s most-expensive home sale