| 2025 Irrevocable Two-Year Grantor Retained Annuity Trust of Aspasia F. Vahaviolos +1 co-filer10% owner · 6 transactions | — | 5.76M† | — | — | 4.0K |
| Vahaviolos Sotirios J.Director, 10% owner · 68 transactions | — | 3.89Mas of Mar 2024 | 544.8K | 87.8K | 1.55M |
| Vahaviolos Aspasia Felice10% owner · 4 transactions | — | 1.79M | — | — | — |
| Burgess ElizabethDirector · 3 transactions | — | 965.6Kas of Apr 2010 | — | 2.7K | 1.30M |
| Stamatakis Manuel N.Executive Chairman, Director · 58 transactions | — | 509.8K | 359.8K | 198.5K | 47.7K |
| Bertolotti DennisPresident and CEO, Director · 80 transactions | — | 424.4Kas of Mar 2023 | 502.1K | 7.5K | 43.8K |
| Debenedictis NicholasDirector · 50 transactions | — | 273.8K† | 107.4K | 161.8K | — |
| Lange Michael J.Senior EVP · 105 transactions | — | 240.5Kas of Sep 2024 | 264.3K | — | 582.5K |
| Wolk Jonathan HSr. EVP and COO · 53 transactions | — | 194.6Kas of Jan 2023 | 222.1K | 11.0K | — |
| Forese James JDirector · 33 transactions | — | 177.0K | 117.0K | 60.0K | 1.30M |
| Peterik PaulChief Financial Officer · 3 transactions | — | 164.5K†as of Apr 2010 | 162.5K | 2.0K | — |
| Carlos Mark F.Group EVP, Products & Systems · 19 transactions | — | 163.3Kas of Aug 2016 | 51.0K | 500 | 79.7K |
| Cole Phillip T.Group EVP, International · 5 transactions | — | 160.9Kas of Nov 2012 | 5.2K | — | 65.3K |
| Prajzner Edward JSr. EVP and CFO · 37 transactions | — | 148.1K | 169.0K | — | — |
| Shuman-Fabbri NataliaPresident and CEO, Director · 2 transactions | — | 126.2K | 126.2K | — | — |
| Smith John AnthonyExecutive Vice President · 3 transactions | — | 100.4Kas of Apr 2024 | 7.0K | — | 10.0K |
| Lohmeier MichelleDirector · 16 transactions | — | 99.2K | 90.0K | 9.2K | — |
| Keefe Michael CEVP, General Counsel · 73 transactions | — | 91.6Kas of Mar 2025 | 177.4K | — | 55.3K |
| Pizzi Charles PDirector · 11 transactions | — | 73.5K | 75.6K | — | — |
| Glanton Richard HDirector · 34 transactions | — | 71.2K† | 119.2K | 753 | 46.9K |
| Hammad Hanei WailEVP & Chief Operating Officer · 7 transactions | — | 61.8K | 94.7K | — | — |
| D'Alterio Gennaro A.EVP, Chief Commercial Officer · 11 transactions | — | 47.2K | 50.6K | — | — |
| Weldon Wayne CurtisDirector · 14 transactions | — | 36.1Kas of Aug 2020 | 32.5K | 4.0K | 2.8K |
| Coggins Eileen MaryEVP, General Counsel · 2 transactions | — | 22.2K | 22.2K | — | — |
| Joyce Francis TEVP, CFO and Treasurer · 7 transactions | — | 18.5Kas of Aug 2013 | 47.1K | — | 26.3K |
| Orlando PhilipPrincipal Financial Officer · 1 transaction | — | 16.2Kas of Mar 2014 | 2.0K | — | — |
| Ruff Ellen TDirector · 8 transactions | — | 14.2Kas of Aug 2015 | 14.2K | — | — |
| Dickinson Daniel MDirector · 9 transactions | — | 13.4K†as of Aug 2014 | 9.4K | 4.0K | 1.30M |
| Genesi Ralph L.Group EVP, Marketing and Sales · 29 transactions | — | 9.9Kas of May 2015 | 107.9K | 2.0K | 112.0K |
| TC NDT Holdings, L.L.C.10% owner · 3 transactions | — | 0as of May 2011 | — | — | 4.07M |
| Sotirios Vahaviolos January 2023 2-Year Grantor Retained Annuity Trust10% owner · 2 transactions | — | 0as of Jul 2025 | — | — | — |