Belén Garijo, head of Merck KGaA's healthcare division, will take over from Stefan Oschmann as chief executive of the German group next year, doubling the number of female CEOs in the big pharma top 20 to two, alongside GlaxoSmithKline plc's Emma Walmsley.
Garijo, who has been appointed as the new chair of the executive board as well as CEO, will take over...





