X0206 3/A 2025-09-15 2025-09-25 1 0001436126 Mistras Group, Inc. MG 0002087458 Coggins Eileen Mary 195 CLARKSVILLE ROAD PRINCETON JUNCTION NJ 08550 0 1 0 0 EVP & Chief Legal Officer No securities were beneficially owned as of 09/15/2025. (Tables I and II above are not applicable). This supersedes the Form 3 filed on September 25, 2025, which included grants after Ms. Coggins' employment commenced which should not have been included. /s/ Laura Boswell, attorney in fact for Eileen Mary Coggins 2025-10-01