SAGE Therapeutics (SAGE) said late Friday that Biogen (BIIB) had submitted an unsolicited, nonbinding proposal to acquire all outstanding shares of the company not already owned for $7.22 per share.
After consulting with its financial and legal advisors, the company said it would review and determine the best course of action for the company and its shareholders.
SAGE Therapeutics' share rose 38% in premarket trading activity.