Live feed16:02:18·461dINSIDERFilingvia QuantisnowExecutive Chairman Stamatakis Manuel N. bought $99,500 worth of shares (10,000 units at $9.95), increasing direct ownership by 3% to 374,299 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MG· Mistras Group IncConsumer DiscretionaryOriginal source