Can You Name This Chart?

So, you think you know the markets? See if you can figure out what stock this is just by looking at this one-year chart (scroll down for the answer).

Here are some clues:

• This company’s CEO announced in late July that he will be leaving the company once a successor is identified
• This company's drug for spinal muscular atrophy recently met its primary endpoint
• Slogan: “Neurological, Autoimmune, and Rare Diseases”

Answer:

Biogen Inc. BIIB