| director |
| A-Award |
| Acquired |
| 7,498 |
| $0.00 |
| 29 Dec 2017 | Wilks Brothers, LLC | 10 percent owner, other: See Remarks | P-Purchase | Acquired | 20,000 | $9.94 |
| 29 Dec 2017 | Wilks Brothers, LLC | 10 percent owner, other: See Remarks | P-Purchase | Acquired | 115,644 | $8.83 |
| 29 Dec 2017 | Wilks Brothers, LLC | 10 percent owner, other: See Remarks | P-Purchase | Acquired | 134,356 | $8.57 |
| 29 Dec 2017 | Wilks Brothers, LLC | 10 percent owner, other: See Remarks | P-Purchase | Acquired | 6,275 | $14.00 |
| 29 Dec 2017 | Wilks Brothers, LLC | 10 percent owner, other: See Remarks | S-Sale | Disposed | 6,275 | $13.00 |