UnitedHealth Group has its headquarters in an Eden Prairie, Minnesota, building that houses its Optum division for health care services. The company alleged defamation by a Texas surgeon over ...

A court-appointed special master has found that U.S. authorities do not have evidence to support their billion-dollar fraud case accusing UnitedHealth Group of keeping overpayments from the ...

A court-appointed special master is recommending a 14-year-old whistleblower lawsuit not be allowed to move forward after ...

Optum's headquarters in Eden Prairie, Minnesota, also is headquarters for parent company UnitedHealth Group. (Evan Ramstad/The Minnesota Star Tribune) ...

The company put out a statement on Friday rejecting the allegations, but the Wall Street Journal article caused a 7.17% drop in the price of its stock.

UnitedHealth Group subsidiary UnitedHealthcare's Minnesota headquarters. The blue chip Dow Jones Industrial Average slipped 1.7%, about 750 points, with UnitedHealth’s drop accounting for about ...