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Alex Denner (Mark Neuling/CNBC/NBCU Photo Bank via Getty Images)
Alex Denner is out at Biogen as new CEO Viehbacher crafts a fresh board with Susan Langer, Caroline Dorsa
Biogen’s big top-level shakeup continued Monday evening with news that Alex Denner — first elected to the board back in 2009 when he spearheaded Carl Icahn …
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