Acquisition expands Day One’s pipeline with clinical-stage antibody drug conjugate (ADC) emiltatug ledadotin (Emi-Le) targeting rare cancer adenoid cystic carcinoma (ACC)
Jan. 06, 2026 -- Day One Biopharmaceuticals, Inc. (Nasdaq: DAWN) (“Day One”), a biopharmaceutical company dedicated to developing and commercializing targeted therapies for people of all ages with life-threatening diseases, today announced the successful close of its acquisition of Mersana Therapeutics, Inc., (NASDAQ: MRSN) (