Role
10%+ Owner
Signature
/s/ Stephanie Foglia, Trustee
Issuer symbol
MG
Transactions as of
31 Dec 2025
Net transactions value
$0
Form type
3
Filing time
27 Feb 2026, 17:26:15 UTC

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos 10%+ Owner C/O STEPHANIE FOGLIA, 504 HIRAM ROAD, PLYMOUTH MEETING /s/ Stephanie Foglia, Trustee 16 Feb 2026 0002102046

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding MG Common Stock 5,251,358 31 Dec 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Remarks:

Reporting person ("GRAT") was established by the grantor, Aspasia F. Vahaviolos. The shares were acquired by a gift from Mrs. Vahaviolos. Mrs. Vahaviolos' daughter, who does not reside with her, is the trustee for the trust and holds sole power over the voting and disposition of the shares of Mistras Group common stock held by the GRAT. Mrs. Vahaviolos and the GRAT trustee have agreed that the GRAT will be subject to the Issuer's insider trading compliance policy regarding the shares of common stock of the Issuer held by the GRAT because of the managerial position held by the trustee with the issuer