CEO of British pharmaceutical giant GlaxoSmithKline (GSK), Emma Walmsley speaks at Fortune's Most Powerful Women Summit on Tuesday.

GSK chief doesn’t buy that the CEO role has become unsustainable: ‘There are few things more obnoxious in life than CEOs complaining about how hard their life is’

The co-CEO model may work with the right “cocktail” combination, but CEOs must be prepared to give the position “everything you possibly have,” she said.

October 15, 2025

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