X0306 4 2022-03-22 0001436126 Mistras Group, Inc. MG 0001361681 Prajzner Edward J C/O MISTRAS GROUP 195 CLARKSVILLE ROAD PRINCETON JUNCTION NJ 08550 1 EVP, CFO and Treasurer Common Stock 2022-03-22 4 A 0 12214 0 A 78970 D Performance Restricted Stock Units 0 2022-03-22 4 A 0 18321 0 A Common Stock 18321 18321 D Represents an award of restricted stock units that will vest 25% on each anniversary of the award. These performance share units vest to the extent earned in 2023 based upon performance metrics for 2022. The reporting person may earn between 0 and 200% of the units reported based on performance. Once earned, these performance share units will be paid in restricted stock units which will vest over 4 years. /s/ Michael C. Keefe, attorney-in-fact for Edward J. Prajzner 2022-03-22