Live feed15:59:38·383dINSIDERFilingvia QuantisnowExecutive Chairman Stamatakis Manuel N. bought $77,100 worth of shares (10,000 units at $7.71), increasing direct ownership by 3% to 384,299 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MG· Mistras Group IncConsumer DiscretionaryOriginal source