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Insider Roster
- Sergei Krylov, President and Ceo, 2020-01-03
- E. Joshua Dazey, Vp, General Counsel, 2019-06-04
- Curtis J Henderson, Chief Administrative Officer, 2019-04-16
- A. Troy Hoefer, Sr. Vice President-Engineering, 2019-04-15
- Qingming Yang, President & Coo, 2019-01-25
- Ross J. Craft, Ceo, 2019-01-25
- Matthew Kahn, Director, 2019-01-02
- C James Crain, Director, 2019-01-02
- M. Ian Shaw, Chief Accounting Officer, 2018-12-14
- Iii J. Vean Gregg, Director, 2018-07-03
- D Alan Bell, Director, 2018-04-03
- H. Dan Wilks, Large Shareholder, 2018-01-13
- Wilks Brothers, Llc, Large Shareholder, Other, 2018-01-13
- Staci Wilks, Large Shareholder, 2018-01-13
- Farris Wilks, Large Shareholder, 2018-01-13
- Sdw Investments, Llc, Large Shareholder, 2018-01-13
- H James Brandi, Director, 2017-07-05
- L. Uma Datla, Chief Accounting Officer, 2017-06-05
- Morgan Neff, Director, 2017-02-03
- Matthew Wilks, Director, 2017-02-03
- B Sheldon Lubar, Director, 2016-03-04
- J. Christopher Whyte, Director, 2016-01-05
- P. Ralph Manoushagian, Evp - Land, 2014-05-20
- P. Steven Smart, Evp & Cfo, 2014-01-04
- H Bryan Lawrence, Director, 2012-05-29
- Iii William Buckler Stanley, Vice President - Engineering, 2011-11-07
- Yorktown V Co Llc, Large Shareholder, 2011-03-16
- Yorktown Energy Partners V Lp, Large Shareholder, 2011-03-16
- Wilson Glenn Reed, Officer, 2009-05-12
Show All Insiders (29) Filing Period:
Last updated on based on SEC 13F filings Last update:
| No. | Hedge Fund | Shares | Value | Activity | % Port |
| 1. | | 0 | $0 | | 0% |
| 2. | | 0 | $0 | | 0% |
| 3. | | 0 | $0 | | 0% |
| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Large Shareholder, Other | $4.04 | 200,000 | $807,280.00 | 37,799,413 | 2018-01-12 | Filing |
| Large Shareholder, Other | $3.59 | 200,000 | $718,760.00 | 37,599,413 | 2018-01-10 | Filing |
| Large Shareholder, Other | $3.34 | 250,000 | $834,025.00 | 37,399,413 | 2018-01-09 | Filing |
| Large Shareholder, Other | $3.15 | 100,000 | $314,500.00 | 37,149,413 | 2018-01-05 | Filing |
| Large Shareholder, Other | $3.19 | 100,000 | $319,400.00 | 37,049,413 | 2018-01-04 | Filing |
| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
| Officer | $0.93 | 18,921 | $17,596.53 | 627,953 | 2018-12-28 | Filing |
| Officer | $0.91 | 8,024 | $7,301.84 | 762,923 | 2018-12-20 | Filing |
| Officer | $1.25 | 20,000 | $25,000.00 | 51,340 | 2018-12-13 | Filing |
| Officer | $28.06 | 850 | $23,851.00 | 332,074 | 2013-11-01 | Filing |
| Officer, Director | $28.06 | 2,500 | $70,150.00 | 920,635 | 2013-11-01 | Filing |
Filing Period:
| No. | Name | Shares | Value | % Port |
| 1. | | 0 | $0 | 0% |