Biotechnology Swedish biotech Hansa Biopharma (Nasdaq Stockholm: HNSA) has appointed Maria Törnsén as chief operating officer and president US, strengthening its commercial leadership ahead of key milestones for its kidney transplant drug Idefirix (imlifidase). Ms Törnsén previously held senior commercial roles at Calliditas Therapeutics, Sarepta Therapeutics (Nasdaq: SRPT), Sanofi (Euronext: SAN) and Shire, and oversaw US commercial operations during Calliditas’ acquisition by Asahi Kasei in 2024. Her track record includes launching multiple products and leading a $1.6 billion franchise. 13 May 2025