| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| Wilks Brothers, LLC | Director, 10%+ Owner | $41.8M | Sep 13, 2023 | ||
| Sergei Krylov | Director | $37.8K | May 16, 2025 | ||
| Ian Shaw | Chief Financial Officer | $27K | Aug 15, 2025 | ||
| Ray Mays | EVP & Chief Operating Officer | $11.9K | Aug 15, 2025 | ||
| William Anthony Clark | CEO & President | $2.94K | Sep 9, 2025 | ||
| Ted R. North | Director | Jan 18, 2022 | |||
| C. Ray Tobias | EVP, Chief Operating Officer | Aug 16, 2022 | |||
| James K. Brata | EVP, Chief Financial Officer | Aug 16, 2022 | |||
| Craig W. Cooper | Director | Jan 18, 2022 | |||
| Mark A. Vander Ploeg | Director | Jan 18, 2022 | |||
| Matthew Wilks | Director | Jan 18, 2022 | |||
| Bruce Franklin Bradley | Director | Oct 1, 2024 | |||
| Albert S. Conly | Director | Oct 1, 2024 | |||
| Jose Carlos Fernandes | Director | Oct 1, 2024 | |||
| Michael L. Klofas | Director | Jan 18, 2022 | |||
| Stephen C. Jumper | President/CEO | Aug 16, 2022 |
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|