Live feed16:33:52·221dINSIDERFilingvia QuantisnowLarge owner Squadron Capital Llc sold $5,200,000 worth of shares (250,000 units at $20.80), decreasing direct ownership by 2% to 11,145,045 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ATEC· Alphatec Holdings Inc.Health CareOriginal source