Andrew Witty, who largely led the U.S. healthcare giant from the U.K., made big bets on Medicare enrollees that backfired.

Andrew Witty is a business executive well-known for his contributions to the Pharmaceutical and health sectors.

Andrew Witty, UnitedHealth Group CEO, resigned from his position at the healthcare and wellbeing company on May 13, 2025.

UnitedHealth Group said Sir Andrew Witty has been promoted to chief ... Prior to joining UnitedHealth and Optum, Witty was CEO and a director of GSK from 2008 until 2017, having joined the global ...

GlaxoSmithKline’s (GSK) former chief executive Andrew Witty was yesterday announced as the new CEO of Optum – a US payer organisation which includes pharmacy benefits manager OptumRx.

RESEARCH TRIANGLE PARK – Andrew Witty’s retirement keeps getting busier. The former chief executive officer at drug giant GlaxoSmithKline is taking over as CEO at Optum, the health services ...

UnitedHealth Group CEO Andrew Witty is stepping down from his post for personal reasons and the health care giant says it’s suspending its full-year forecast due to higher-than-expected medical costs.

Andrew Witty is stepping down from his position as UnitedHealth's CEO for personal reasons, insurer says in surprise ...

Bio: Emma Walmsley Emma Walmsley is CEO Designate of GSK. She will formally succeed Andrew Witty as GSK CEO when he retires on 31 March 2017. She will join the GSK Board on 1 January 2017. Emma ...

GlaxoSmithKline (GSK) has announced it is to begin searching for a successor to CEO Andrew Witty, who will retire in just over a year's time. Witty has told GSK's board that he intends to retire ...

GlaxoSmithKline PLC (NYSE:GSK) Q4 2015 Earnings Conference Call February 3, 2016 7:00 AM ETExecutivesAndrew Witty - CEOSimon Dingemans - CFOAnalystsGraham ...

UnitedHealth Group CEO Andrew Witty stepped down from his executive ... Previously, the businessman worked as the CEO of GlaxoSmithKline, a British pharmaceutical company, from 2008 to 2017.