100 Most Influential People in Healthcare
Walmsley took the helm at the large pharmaceutical company in March 2017. Rumors circulated earlier this year that GSK's board of directors were considering breaking up the company, but Walmsley has suggested it will stay the course as she continues to focus on growth. Last year, she hired a new head of research and development. The company's second-quarter revenue was up 4% over the same period last year.