Schedule 13D Filing for Mistras Group, Inc.

Stephanie Foglia and the 2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos (the "Trust") are jointly filing a Schedule 13D regarding their beneficial ownership of Mistras Group, Inc. common stock. As of March 31, 2026, Stephanie Foglia directly owns 2,000 shares and holds 12,663 shares through employment compensation. The Trust, established on December 31, 2025, acquired 5,251,358 shares as a gift from Ms. Vahaviolos. Stephanie Foglia is the trustee of the Trust. Collectively, the Reporting Persons beneficially own 6,862,978 shares, representing approximately 21.72% of the outstanding common stock. The shares were acquired for investment purposes, and the Reporting Persons have no current plans for major transactions but reserve the right to acquire or dispose of additional securities. The filing also notes that Ms. Foglia is a US citizen and the Director of Total Rewards for Mistras Group, Inc.