Dr. Sotirios J. Vahaviolos Appointed Chairman Emeritus Mr. Manuel N. Stamatakis Named Chairman of the Board and Interim CEO Mr. Dennis M. Bertolotti, President and CEO, departs the Company Mr. James J.
Mistras Group (MG) Announces Leadership Transition streetinsider.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from streetinsider.com Daily Mail and Mail on Sunday newspapers.