Live feed19:53:59·951dINSIDERFilingvia QuantisnowWingrove Theresa exercised 166,725 shares at a strike of $4.55 and sold $2,642,591 worth of shares (166,725 units at $15.85) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.IMGN· ImmunoGen Inc.Health CareOriginal source