Filing Manager
Aspasia Felice Vahaviolos
Reporting Manager
Aspasia Vahaviolos
Symbol
MG
Shares outstanding
31,472,423 shares
Disclosed Ownership
6,105,650 shares
Ownership
19%
Form type
SCHEDULE 13G
Filing time
11 Sep 2025, 16:50:07 UTC
Date of event
23 May 2025
Next filing
31 Mar 2026

Key filing fact

Aspasia Felice Vahaviolos disclosed 19% ownership in Mistras Group, Inc. Common Stock, $0.01 par value (MG) on 23 May 2025.

Key facts

  • Aspasia Felice Vahaviolos filed SCHEDULE 13G for Mistras Group, Inc. Common Stock, $0.01 par value (MG).
  • Disclosed ownership: 19%.
  • Date of event: 23 May 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 11 Sep 2025, 16:50.

Research use

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting persons

Reporting managers (1)

Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Aspasia Vahaviolos 19% 6,105,650 6,105,650 0 Michael C. Keefe Michael C. Keefe as attorney-in-fact for Aspasia Vahaviolos
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