BioNTech on Monday named Guido Oelkers, formerly the leader of the Swedish biopharma company Sobi, as its new CEO, as the Covid-19 vaccine developer continues its shift to oncology.

Oelkers will replace Ugur Sahin as CEO. In March, BioNTech announced that Sahin and his cofounder and wife Özlem Türeci, the company’s chief medical officer, would depart the company to lead a new biotech focused on developing mRNA medicines.

Oelkers, who has worked in biopharma for more than 30 years, will start by Feb. 1, 2027, the company said. He said that he would continue BioNTech’s work to be a global company with multiple approved medicines by 2030.