(Reuters) -Williams Companies said on Monday CEO Alan Armstrong will step down after more than 14 years at the helm of the U.S. pipeline operator. Armstrong, who joined Williams nearly 40 years ...

Buffett to Step Down as Berkshire CEO After 60 Years at Helm, Passes Baton to Abel By Jonathan Stempel and Suzanne McGee OMAHA, Nebraska (Reuters) -Warren Buffett is ending his career as perhaps ...