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 |
|---|---|---|---|---|---|---|
| 2026-09-16 | Plaumann Mark Lawrence Director | Purchase | +5,000 | $3.00 | $15K | 5,000 |
| 2026-06-17 | WEXFORD CAPITAL LP Chief Business Officer | Purchase | +4,019,574 | $2.60 | $10.5M | 10,620,789 |
| 2026-06-12 | Amron Arthur H Director | Purchase | +2,000 | $3.28 | $7K | 67,135 |
| 2026-06-11 | Amron Arthur H Director | Purchase | +2,500 | $3.22 | $8K | 65,135 |
| 2026-05-28 | Amron Arthur H Director | Purchase | +3,000 | $3.25 | $10K | 62,635 |
| 2026-05-26 | Amron Arthur H Director | Purchase | +2,500 | $3.24 | $8K | 59,635 |
| 2025-12-11 | Amron Arthur H Director | Purchase | +10,000 | $1.89 | $19K | 57,135 |
| 2024-12-12 | Amron Arthur H Director | Purchase | +1,000 | $2.97 | $3K | 47,135 |
| 2024-05-30 | Amron Arthur H Director | Purchase | +3,000 | $3.65 | $11K | 18,279 |
| 2024-05-28 | Amron Arthur H Director | Purchase | +2,000 | $3.57 | $7K | 15,279 |
| 2024-03-12 | Amron Arthur H Director | Purchase | +3,000 | $3.72 | $11K | 13,279 |
| 2022-06-17 | WEXFORD CAPITAL LP Director | Purchase | +10,382 | $2.17 | $23K | 22,434,125 |
| 2022-06-16 | WEXFORD CAPITAL LP Director | Purchase | +35,000 | $2.13 | $74K | 22,423,743 |
| 2022-06-15 | WEXFORD CAPITAL LP Director | Purchase | +5,100 | $2.23 | $11K | 22,388,743 |
| 2022-06-14 | WEXFORD CAPITAL LP Director | Purchase | +20,600 | $2.28 | $47K | 22,383,643 |
| 2022-06-13 | WEXFORD CAPITAL LP Director | Purchase | +25,102 | $2.35 | $59K | 22,363,043 |
| 2022-06-10 | WEXFORD CAPITAL LP Director | Purchase | +54,779 | $2.46 | $135K | 22,337,941 |
| 2022-06-09 | WEXFORD CAPITAL LP Director | Purchase | +27,489 | $2.48 | $68K | 22,283,162 |
| 2022-06-08 | WEXFORD CAPITAL LP Director | Purchase | +15,500 | $2.50 | $39K | 22,255,673 |
| 2021-12-13 | SMITH ARTHUR L Director | Purchase | +25,000 | $2.00 | $50K | 180,326 |
Page 1 of 2 · 30 trades