Shares of UnitedHealth Group ( UNH 3.45%) are plummeting this week. The company's stock is down 27.4% as of 12:29 p.m. ET. The collapse comes as the S&P 500 ( ^GSPC 0.27%) gained 4.7% and the ...

Investors punished UnitedHealth Group’ s stock further Thursday following a Wall Street Journal report that the U.S. Department of Justice has launched a criminal fraud investigation of Medicare ...

House Democrats are backing the Justice Department case that alleges UnitedHealth Group committed widespread Medicare ...

UnitedHealth Group, one of America’s largest health insurers, is facing a storm of challenges—from a criminal investigation ...

The health care giant's shares are down more than 50% in the last month. That's hurting the powerful U.S. stock-market index.

The company’s stock has declined over its financial performance and the sudden replacement of its CEO.

The Department of Justice has launched an investigation of UnitedHealth Group for possible criminal Medicare fraud, according ...

One of the nation’s largest health insurers is reportedly the target of a Department of Justice investigation for alleged healthcare fraud.

Health-care companies fell after reports that UnitedHealth Group was under federal investigation. Shares of UnitedHealth plunged after reports the Department of Justice was investigating allegations ...

The reported probe adds to a string of recent setbacks that have erased more than half, or over $300 billion, from its market ...

It keeps getting worse for UnitedHealth Group Inc. investors, as a report of a criminal investigation into its Medicare ...