Live feed18:57:15·84dINSIDERFilingvia QuantisnowEVP, SALES Sponsel David sold $833,261 worth of shares (60,425 units at $13.79), decreasing direct ownership by 15% to 349,500 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATEC· Alphatec Holdings Inc.Health CareOriginal source