The problem of Prince dying from their drug draws a lot of attention to the fact of how addicting and dangerous it is. Not the publicity I would want for a company I owned.
"Which one of INSY's employees or officers held Prince down and force fed him the drug?"
So what you are saying is that a company that has the stigma/publicity of manufacturing a product that killed a world known celebrity is no big deal ?
Who is now forcing shareholders to unload their stock in light of today's great news ?
That killed Prince. It's listed in the Yahoo news for INSY, simply look it up in the "older news headlines".
Some people just want to distance themselves from that.