Hedge Fund and Insider Trading News: Ken Griffin, Bill Ackman, York Capital Management, Berkshire Hathaway, Elliott Management, Tiger Global Management, Humana Inc (HUM), 3M Co (MMM), and More
Ken Griffin’s Citadel expects to have most of its U.S. employees back in its offices in New York, Chicago and Greenwich, Connecticut, by June 1, according to a person familiar with the matter.