Nasdaq · CIK 0001679268
TUSK MAMMOTH ENERGY SERVICES, INC.
Insider trading from SEC Form 4. Last filing 25 d ago. Close $2.82 on Oct 9, 2026, +63% from the 52-week low and -27% from the high.
Last 90 days
Net insider value
+$15k
more bought than sold
Buys
1
$15k by 1 insider
Sells
0
$0 by 0 insiders
Insiders on file
4
with a Form 4 at this company
Price and insider trades, last year
TUSKOct 9, 2026 · close 2.82
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at MAMMOTH ENERGY SERVICES, INC., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 27Weak | Mark Lawrence Plaumann director buy | $15k 5,000 shares | - | +75% from low-21% from high | |
| 39Weak | Arthur H Amron director buy | $19k 10,000 shares | +21% | +6% from low-46% from high | |
| 27Weak | Arthur L Smith director sell | $50k 20,000 shares | -13% | +34% from low-47% from high | |
| 36Weak | Arthur L Smith director sell | $163k 65,000 shares | -30% | +32% from low-47% from high | |
| 15Weak | Arthur H Amron director buy | $2,971 1,000 shares | +2% | - | |
| 29Weak | Corey J. Booker director sell | $86k 25,000 shares | -17% | - | |
| 21Weak | Corey J. Booker director sell | $38k 11,709 shares | -7% | - | |
| 21Weak | Corey J. Booker director sell | $39k 10,707 shares | -6% | - | |
| 15Weak | Corey J. Booker director sell | $13k 3,683 shares | -2% | - |
Transactions
The last 15 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Mark Lawrence Plaumann director | POpen-market purchase Common Stock | +5,000 | $3.00 | $15k | 5,000 | 25 d ago |
| Dec 11, 2025 | Arthur H Amron director | POpen-market purchase Common Stock | +10,000 | $1.89 | $19k | 57,135 | Dec 15, 2025 |
| May 22, 2025 | Arthur L Smith director | SOpen-market sale Common Stock | -20,000 | $2.51 | $50k | 130,034 | May 27, 2025 |
| May 19, 2025 | Arthur L Smith director | SOpen-market sale Common Stock | -15,000 | $2.49 | $37k | 200,034 | May 21, 2025 |
| May 20, 2025 | Arthur L Smith director | SOpen-market sale Common Stock | -50,000 | $2.51 | $126k | 150,034 | May 21, 2025 |
| Dec 12, 2024 | Arthur H Amron director | POpen-market purchase Common Stock | +1,000 | $2.97 | $2,971 | 47,135 | Dec 16, 2024 |
| Nov 22, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -10,000 | $3.43 | $34k | 140,488 | Nov 26, 2024 |
| Nov 25, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -15,000 | $3.47 | $52k | 125,488 | Nov 26, 2024 |
| Nov 20, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -5,000 | $3.21 | $16k | 157,197 | Nov 22, 2024 |
| Nov 21, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -6,709 | $3.25 | $22k | 150,488 | Nov 22, 2024 |
| Nov 13, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -7,100 | $3.68 | $26k | 165,804 | Nov 15, 2024 |
| Nov 14, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -3,607 | $3.50 | $13k | 162,197 | Nov 15, 2024 |
| Nov 7, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -165 | $3.90 | $644 | 176,422 | Nov 12, 2024 |
| Nov 8, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -24 | $3.76 | $90 | 176,398 | Nov 12, 2024 |
| Nov 11, 2024 | Corey J. Booker director | SOpen-market sale Common Stock | -3,494 | $3.61 | $13k | 172,904 | Nov 12, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Arthur H Amrondirector
- Corey J. Bookerdirector
- Mark Lawrence Plaumanndirector
- Arthur L Smithdirector
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.