| Lorentzen Ole Peter10% owner · 12 transactions | — | 5.16Mas of Sep 2021 | — | 2.39M | 3.34M |
| Medanich JamesDirector · 2 transactions | — | 3.30M†as of Jul 2008 | — | — | 306.5K |
| Johannessen Fred OlavDirector · 126 transactions | — | 2.05M†as of Aug 2014 | — | — | 1.41M |
| Pique Gonzalo GDirector · 35 transactions | — | 790.1K†as of May 2011 | — | 11.0K | 261.9K |
| Hanstveit ArveDirector · 69 transactions | — | 520.6K† | 369.7K | 80.8K | 1.93M |
| Trempont DominiqueDirector · 21 transactions | — | 447.7Kas of Dec 2014 | 120.0K | 327.6K | — |
| Mao Robert Yu LangDirector · 43 transactions | — | 343.1K†as of May 2024 | 746.2K | 117.4K | 397.0K |
| Moon David WPresident and CEO, Director · 15 transactions | — | 270.0K† | 269.7K | 37.0K | 3.8K |
| Ghasripoor FarshadChief Technology Officer · 73 transactions | — | 246.2K†as of Feb 2025 | 365.5K | — | 234.2K |
| Sandlin TerrillVP of Manufacturing · 1 transaction | — | 124.0Kas of Jul 2009 | 4.0K | — | — |
| Stover RichardCTO · 3 transactions | — | 120.3Kas of May 2009 | — | — | 54.7K |
| Clemente RodneySVP, Water · 128 transactions | — | 116.0K | 569.9K | — | 417.2K |
| Yeung WilliamChief Legal Officer · 67 transactions | — | 109.7K† | 283.4K | 8.1K | 137.4K |
| Tondreau Pamela L.Director · 10 transactions | — | 98.2K† | 65.7K | 32.5K | — |
| Gay JoelPresident and CEO · 6 transactions | — | 95.1Kas of Feb 2018 | 106.1K | — | — |
| Buehler Alexander JInterim President and CEO, Director · 21 transactions | — | 81.7K | 121.7K | 120.0K | 174.9K |
| Gannon Chris MChief Executive Officer · 12 transactions | — | 77.9Kas of Feb 2019 | 76.5K | 12.7K | — |
| Mancini Michael S.Chief Financial Officer · 3 transactions | — | 75.1K | 79.8K | — | — |
| Siebert EricVP, Oil and Gas · 32 transactions | — | 72.0Kas of Feb 2020 | 151.6K | 21.4K | 74.5K |
| Wang Xiao YinVP, OEM Group · 8 transactions | — | 70.0Kas of Apr 2009 | — | — | 10.2K |
| Bensalah NocairVP Operations · 38 transactions | — | 60.8Kas of Feb 2020 | 251.8K | — | 194.4K |
| Sabol Colin RDirector · 7 transactions | — | 58.7K† | 44.5K | 14.2K | — |
| Chow Joan KaiDirector · 7 transactions | — | 53.6K† | 52.1K | 1.5K | — |
| Ramanan NatarajanChief Technology Officer · 4 transactions | — | 52.6K | 55.6K | — | 272 |
| Smith EmilySVP, Corp Dev and Ops · 31 transactions | — | 51.3Kas of Feb 2021 | 110.4K | — | 38.9K |
| Cook Paul M.Director · 2 transactions | — | 49.8Kas of Aug 2010 | 29.5K | 20.3K | — |
| Hostetler MatthewChief Human Resources Officer · 2 transactions | — | 46.6K | 26.0K | — | — |
| Ballard JoshuaChief Financial Officer · 20 transactions | — | 40.4K†as of May 2024 | 86.5K | — | 40.2K |
| Stroud Andrew B JrVP, Human Resources · 23 transactions | — | 32.7Kas of Feb 2019 | 83.8K | 1.7K | 9.8K |
| Smith Lenox Sharon ECorporate Controller and CAO · 16 transactions | — | 24.1Kas of Apr 2019 | 41.6K | — | 27.0K |
| Fjell OlavDirector · 2 transactions | — | 22.8Kas of Jun 2021 | 4.8K | 18.0K | — |
| Otero JuanGen Counsel,CCO,Corp Secretary · 2 transactions | — | 21.0Kas of Mar 2016 | 14.2K | 6.7K | — |
| Ryan AidanInterim CFO · 1 transaction | — | 15.6K | 18.5K | — | — |
| Proctor Stacy LeaVP, Human Resources · 1 transaction | — | 11.8Kas of Jan 2020 | 11.8K | — | — |
| Michelet Hans PeterDirector · 73 transactions | — | 10.0Kas of Jun 2019 | 485.4K | — | 2.27M |
| Foda SherifDirector · 11 transactions | — | 9.6Kas of Jun 2023 | 67.8K | — | 58.2K |
| Bostick Carolyn F.VP and General Counsel · 2 transactions | — | 6.5K†as of Jan 2011 | 6.0K | — | — |
| Pollina Lisa ADirector · 5 transactions | — | 4.0Kas of Jun 2023 | 8.6K | — | 4.5K |
| Willardson Thomas DCFO · 1 transaction | — | 4.0Kas of Jul 2009 | 4.0K | — | — |
| Sanchez-Blanco BorjaSVP, Sales and Marketing · 2 transactions | — | 1.8Kas of Aug 2009 | 20.0K | 1.8K | — |
| Arvarius AS10% owner · 13 transactions | — | 0as of Oct 2021 | — | — | 6.00M |