Incoming Berkshire Hathaway CEO Greg Abel is assembling his team to help him lead the conglomerate Warren Buffett built starting in January after a couple of key departures.

U.S. stocks pulled away from their record heights.

Shares of UnitedHealth Group are surging before the market open Friday as Warren Buffett’s Berkshire Hathaway disclosed that it recently purchased shares of the beleaguered insurer.