| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| Wilks Brothers, LLC | Director, 10%+ Owner | $41.8M | 13 Sep 2023 | ||
| William Anthony Clark | CEO & President | $267K | 27 Oct 2025 | ||
| Ray Mays | EVP & Chief Operating Officer | $191K | 27 Oct 2025 | ||
| Sergei Krylov | Director | $37.8K | 16 May 2025 | ||
| Ian Shaw | Chief Financial Officer | $27K | 15 Aug 2025 | ||
| Ted R. North | Director | 18 Jan 2022 | |||
| C. RAY TOBIAS | EVP, Chief Operating Officer | 16 Aug 2022 | |||
| James K. Brata | EVP, Chief Financial Officer | 16 Aug 2022 | |||
| CRAIG W. COOPER | Director | 18 Jan 2022 | |||
| Mark A. Vander Ploeg | Director | 18 Jan 2022 | |||
| Matthew Wilks | Director | 18 Jan 2022 | |||
| Bruce Franklin Bradley | Director | 01 Oct 2024 | |||
| Albert S. Conly | Director | 01 Oct 2024 | |||
| Jose Carlos Fernandes | Director | 01 Oct 2024 | |||
| Michael L. Klofas | Director | 18 Jan 2022 | |||
| STEPHEN C. JUMPER | President/CEO | 16 Aug 2022 |
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|