It extends a tumultuous period for UnitedHealth marked by the killing of a top executive, a costly cyberattack against its ...

UnitedHealth Group shares tumbled Friday on a report that the U.S. Department of Justice has started an investigation into the health care giant’s Medicare billing practices. The Wall Street ...

Shares tumbled after The Wall Street Journal reported that the insurer is under Justice Department investigation. The ...

UnitedHealth Group is facing significant challenges to its finances, operations and reputation. Here's a look back at the company's turbulent past 12 months.

UnitedHealth Group (UNH) had another rough day in trading Friday. Reports that the Department of Justice (DOJ) is investigating its Medicare Advantage insurance business sent the stock more than 8 ...