The Power List 2021 – Biopharmaceuticals
Chief Executive Officer at GlaxoSmithKline
Walmsley first joined GSK in 2010, initially working for the Consumer Healthcare, Europe, division. She became CEO in April 2017. The company missed a key internal profit goal in 2020 due to the impact of the pandemic, but still performed well. Recently, the company announced promising results from a phase III trial with Vir Biotechnology for a monoclonal antibody to treat COVID-19.