Stephanie Foglia Decreases Stake in Mistras Group, Inc. to 18.6%

On June 12, 2026, Stephanie Foglia filed an amendment to Schedule 13D regarding her holdings in Mistras Group, Inc. (MG). The filing reports a decrease in beneficial ownership to 5,917,135 shares, representing 18.6% of the company’s outstanding common stock, down from a previous position of 6,329,010 shares (19.89%). This position is held jointly with the 2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos, for which Ms. Foglia serves as Trustee. The reporting persons acquired these shares for investment purposes and currently have no specific plans for extraordinary corporate transactions, though they reserve the right to adjust their holdings based on ongoing evaluations. Ms. Foglia’s direct ownership includes 2,000 shares purchased during the company's IPO and 12,663 shares received as employment compensation, with the remainder held indirectly through family members and the aforementioned trust. The calculation is based on 31,816,681 shares outstanding as of May 7, 2026.