Former CEO and current chairman Stephen Hemsley is stepping back into the top job following the abrupt resignation of Andrew Witty, UnitedHealth said.

UPDATED: 12:02 p.m. ET on Dec. 4 The New York Police Department confirmed late Wednesday morning that UnitedHealthcare CEO Brian Thompson had been shot and killed in Manhattan earlier that day ...

Luigi Mangione was arraigned Friday on federal charges in the December killing of UnitedHealthcare CEO Brian Thompson — a ...

Brian Thompson, the former CEO of UnitedHealth Group's insurance unit UnitedHealthcare, was shot dead on December 4 outside a Midtown Manhattan hotel where the company was holding an ...

United Healthcare CEO Brian Thompson was shot dead on the street in New York City before he was to attend the company's annual investors meeting. (Photo by Stephen Maturen/Getty Images ...

A group of investors has filed a lawsuit against UnitedHealthcare in the United States, accusing the health insurance giant ...

UnitedHealth Group announced that CEO Andrew Witty is stepping down due to 'personal reasons,' and former CEO Stephen Hemsley will replace him.