The largest firefighters' labor union in the U.S. is demanding antitrust authorities investigate the companies that make fire ...

UnitedHealth Group CEO Andrew Witty has stepped down unexpectedly and company veteran Stephen Hemsley is returning to the top ...

Chairman Stephen Hemsley will return to running the healthcare giant he helped build, succeeding CEO Andrew Witty.

UnitedHealth Group (NYSE: UNH) shares plummeted 17.79% to close at US$311.38 on Tuesday—wiping tens of billions off its market capitalisation—after CEO Andrew Witty abruptly stepped down, and the ...