Live feed21:07:56·892dINSIDERFilingvia QuantisnowGold Mitchell exercised 91,884 shares at a strike of $0.56 and sold $1,860,528 worth of shares (91,884 units at $20.25) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ALPN· Alpine Immune Sciences Inc.Health CareOriginal source