CIK 0001679268 · Accelerated filer<br>Smaller reporting company
MAMMOTH ENERGY SERVICES, INC.
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- TUSK
- Exchange
- Nasdaq
- Industry
- Oil & Gas Field Services, NEC
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 320498321
- Phone
- 405-608-6007
- Business address
- 14201 CALIBER DRIVE, SUITE 300, OKLAHOMA CITY, OK, 73134
- Open-market buys, last 90 days
- $15,000
- in 1 filing
- Open-market sales, last 90 days
- $0
- in 0 filings
Net +$15,000. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2020-03-03 | Straehla Arty Chief Executive Officer | Grant or award | +1,300,000 | 1,485,317 | ||
| 2020-03-03 | Layton Mark E. CFO and Secretary | Grant or award | +500,000 | 551,566 | ||
| 2019-11-21 | Ross Matthew Director | Sale | −2,913 | $1.44 | $4K | 19,815 |
| 2019-11-20 | WEXFORD CAPITAL LP Director | Purchase | +16,692 | $1.33 | $22K | 22,045,273 |
| 2019-11-18 | YELLEN JONATHAN H Director | Grant or award | +36,674 | 36,674 | ||
| 2019-11-13 | WEXFORD CAPITAL LP Director | Purchase | +35,904 | $1.36 | $49K | 22,028,581 |
| 2019-06-05 | Palm James D Director | Grant or award | +10,493 | 30,218 | ||
| 2019-06-05 | SMITH ARTHUR L Director | Grant or award | +10,493 | 22,728 | ||
| 2019-06-05 | Ross Matthew Director | Grant or award | +10,493 | 22,728 | ||
| 2019-06-05 | Heerwagen Paul K IV Director | Grant or award | +10,493 | 10,493 | ||
| 2019-06-05 | AMRON ARTHUR H Director | Grant or award | +10,493 | 10,493 | ||
| 2019-06-05 | McCarthy Marc T Director | Grant or award | +10,493 | 10,493 | ||
| 2019-01-25 | AMRON ARTHUR H Director | Grant or award | +1,549 | 1,549 | ||
| 2018-12-03 | SMITH ARTHUR L Director | Sale | −6,000 | $24.85 | $149K | 0 |
| 2018-11-12 | Straehla Arty Chief Executive Officer | Sale | −2,230 | $26.20 | $58K | 185,317 |
| 2018-11-09 | Layton Mark E. CFO and Secretary | Sale | −142 | $26.12 | $4K | 51,566 |
| 2018-11-08 | Layton Mark E. CFO and Secretary | Sale | −994 | $27.27 | $27K | 51,708 |
| 2018-11-08 | Straehla Arty Chief Executive Officer | Sale | −25,151 | $26.45 | $665K | 199,007 |
| 2018-11-08 | Straehla Arty Chief Executive Officer | Sale | −11,460 | $27.29 | $313K | 187,547 |
| 2018-07-30 | MEH SUB LLC Director | Sale | −266,026 | $38.01 | $10.1M | 21,978,893 |
Page 5 of 7 · 136 trades