
BioNTech (BNTX) stock is down nearly 20% at the time of writing after the German company posted a Q4 loss, issued muted guidance, and said its cofounders will depart by the end of this year
CEO Uğur Şahin and Chief Medical Officer Özlem Türeci, who founded BNTX during the financial crisis in 2008, will leave and launch a new biotech startup in late 2026, the press release confirmed.