Mistras (MG) 10% Owner Aspasia Vahaviolos Gifts 387,093 Shares

What Happened Aspasia F. Vahaviolos, a reported 10% owner of Mistras Group, Inc. (MG), transferred (gifted) 387,093 shares on September 10, 2026. The transaction is reported as a gift (transaction code G) with a reported acquisition price of $0.00 (i.e., no cash consideration). The filing indicates the transfer was made pursuant to an annuity payment from a 2025 Irrevocable Two-Year Grantor Retained Annuity Trust (GRAT).

Key Details

• Transaction date: 2026-09-10; Filing date: 2026-09-14 (filed within the Form 4 two-business-day window).
• Transaction type/code: Gift (G); reported price per share: $0.00; reported total value: $0.
• Shares transferred: 387,093. Footnote F2 states the reported amount was adjusted retroactively to reflect a reduction of 27,391 shares after reconciling the reporting person’s internal records.
• Shares owned after the transaction: Not disclosed in this filing.
• Footnote F1: Transfer described as an ordinary course annuity payment from the 2025 GRAT to the reporting person.
• No indication of a 10b5-1 plan, tax withholding, or immediate sale in this filing.

Context Gifts and trust/annuity transfers are typically estate-planning or tax/transfer events and do not necessarily reflect the donor’s view of company prospects. As a 10% owner (not an executive trade), this is an ownership transfer rather than a market purchase or sale.