Ken Griffin: Corporate activism 'profoundly' good

Ken Griffin, founder and chief executive officer, Citadel
David A. Grogan | CNBC

Bill Ackman and have a friend in Ken Griffin.

"The role of the activist in the U.S. equity markets ... has been to profoundly improve corporate governance in America," Citadel hedge fund CEO Griffin said Monday at the Milken Institute Global Conference in Los Angeles.

"We can debate the merits of each run by activists at a given company in a given quarter. Did they make the right call going against this company's direction, are they pushing the right thing for a company's use of cash," he added. "But big picture, corporate governance in the United States is better than pretty much anywhere in the world."