Luigi Mangione was arraigned Friday on federal charges in the December killing of UnitedHealthcare CEO Brian Thompson — a deliberate attack carried out to "amplify an ideological message" and stoke "broad-based resistance" to the health insurance industry, federal prosecutors said in a court filing.

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 ...

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 investor ...

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 ...

MINNEAPOLIS — A man was arrested near UnitedHealthcare’s headquarters in Minnesota after reports of an intruder, months after the company’s CEO was killed ... who was shot to death in ...

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

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