The U.S. Justice Department is investigating UnitedHealth's Medicare billing practices, the Wall Street Journal reported on ...

UnitedHealth Group called The Wall Street Journal's report "misinformation" and said it was unaware of reported investigaiton ...

The stock is having its worst day in five years, even as the company denied any new Justice Department investigation and a ...

The selloff came as more than $2.7 trillion worth of options expired, an event which typically spurs heightened volatility.

The Justice Department is probing diagnoses and practices that triggered extra payments to UnitedHealth’s Medicare Advantage ...

UnitedHealth Group shares tumbled Friday on a report that the U.S. Department of Justice has started an investigation into ...

The US Justice Department has been investigating UnitedHealth Group Inc.’s Medicare billing practices, a person familiar with ...

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

A sweeping fraud probe into UnitedHealth's Medicare Advantage payments sparks panic on Wall Street--Is this just the ...

UnitedHealth (UNH) stock and rivals in Medicare Advantage market under pressure as DoJ probes in to the company's billing ...

Here are some of the major companies whose stocks moved on the week’s news.