Insider tradingForm 4
MAMMOTH ENERGY SERVICES, INC. (TUSK) Insider Trading
1 open-market trades reported since Sep 17, 2026: 1 purchases worth $15K and 0 sales worth $0.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Mark Lawrence Plaumann | Director | 1 | $15K | 0 | $0 |
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Sep 17 | Mark Lawrence PlaumannDirector | ▲ BUY | $15K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings