STAT+: AstraZeneca to acquire Alexion for $39 billion, adding blockbuster immune medicines

AstraZeneca on Saturday said it was acquiring Alexion Pharmaceuticals for $39 billion, marking a significant expansion into the treatment of rare diseases of the immune system.

The deal — a mix of cash and stock — values Alexion at $175 per share, a 45% premium to Friday’s closing stock price.

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