Stephen J. Hemsley returned as CEO after Andrew Witty's surprising decision to leave the insurance giant. UnitedHealth's stock fell 17% on Tuesday.
UnitedHealth Group announced a new chief executive Tuesday, a sudden and surprising change following the fatal shooting in December of its UnitedHealthcare subsidiary's leader.
Andrew Witty stepped down from leading UnitedHealth for unspecified “personal reasons,” the company said. Stephen J. Hemsley, who served as chief executive from 2006 to 2017, will return to the role and remain board chairman. Witty will serve as a senior adviser to Hemsley, the company said in a news release.