Manipulation. Options expiration Friday. Tiny float. Insiders making money on swing trades. Play along if you'd like. They will be taking it down to $50 or so.
SAGE-547 works, no other drug exists for SRSE. FDA allowing it for emergency use (in addition to trials) tells you all you need to know. Will get approved, company could get bought before then. In the mean time average down, and tuck the shares away.