Under the terms of a definitive agreement, Biogen will acquire Apellis for $41 per share in cash, or approximately $5.6 billion, according to a press release from Biogen.

Botox, FYI, is the brand name for an FDA-approved drug called botulinum toxin (aka a nerve-blocking drug, more on this below) that temporarily "freezes" muscles in your face to help smooth out frown ...