Live feed20:08:11·278dINSIDERFilingvia QuantisnowEVP, SALES Sponsel David sold $2,113,239 worth of shares (140,000 units at $15.09), decreasing direct ownership by 21% to 531,861 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATEC· Alphatec Holdings Inc.Health CareOriginal source