Mistras Group, Inc.
A global provider of technology-enabled asset integrity and testing services, Mistras Group checks the health of critical equipment and infrastructure. Its teams perform non-destructive testing (NDT), pipeline inspections, and in-house lab work, with the OneSuite cloud platform pulling asset data into predictive analytics and its PCMS software used by about half of U.S. refiners. Customers span oil & gas, aerospace & defense, power generation, and civil infrastructure.
Sold 4.0K
Granted 126.3K
Granted 6.9K
Granted 6.9K
Granted 37.2K
Granted 126.2K
Granted 6.9K
Granted 6.9K
Granted 6.9K
Granted 29.8K
Granted 19.9K
Granted 22.2K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| 2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos +1 co-filer10% owner · 6 transactions | — | 5.76M | — | — | 4.0K |
| Vahaviolos Aspasia Felice10% owner · 3 transactions | -70.6% | 1.79M | — | — | — |
| Stamatakis Manuel N.Executive Chairman, Director · 3 transactions | +32.7% | 509.8K | 126.3K | — | — |
| Debenedictis NicholasDirector · 1 transaction | +2.6% | 273.8K | 6.9K | — | — |
| Forese James JDirector · 1 transaction | +4% | 177.0K | 6.9K | — | — |
| Prajzner Edward JSr. EVP and CFO · 7 transactions | +21.7% | 148.1K | 37.2K | — | — |
| Shuman-Fabbri NataliaPresident and CEO, Director · 2 transactions | — | 126.2K | 126.2K | — | — |
| Lohmeier MichelleDirector · 1 transaction | +7.4% | 99.2K | 6.9K | — | — |
| Pizzi Charles PDirector · 2 transactions | +6.9% | 73.5K | 6.9K | — | — |
| Glanton Richard HDirector · 1 transaction | +10.7% | 71.2K | 6.9K | — | — |
| Hammad Hanei WailEVP & Chief Operating Officer · 3 transactions | +5.4% | 61.8K | 29.8K | — | — |
| D'Alterio Gennaro A.EVP, Chief Commercial Officer · 5 transactions | +60.1% | 47.2K | 19.9K | — | — |
| Coggins Eileen MaryEVP, General Counsel · 2 transactions | — | 22.2K | 22.2K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -4.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.