Live feed16:12:06·158dINSIDERFilingvia QuantisnowLarge owner Valentin Gapontsev Trust I sold $636,987 worth of shares (7,952 units at $80.10), decreasing direct ownership by 0.12% to 6,793,099 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.IPGP· IPG Photonics CorporationTechnologyOriginal source