GSK to buy cancer drugmaker Tesaro for $5.1 billion
British pharmaceutical giant GlaxoSmithKline (GSK) on Monday announced it will acquire US-based cancer drugmaker Tesaro for nearly $5.1 billion. GSK, Britain's biggest drugmaker, seeks to rebuild its pharmaceuticals portfolio with this acquisition. This comes after the London-based company sold its consumer healthcare unit to Hindustan Unilever Limited (HUL) for around $3.9 billion on Monday.