Mammoth Energy Services, Inc. (TUSK) is a publicly traded company in the Unknown sector. Across all available filings, 20 corporate insiders have executed 112 transactions totaling $175.0M, demonstrating a bearish sentiment with -$173.2M in net insider flow. The most recent transaction on Dec 11, 2025 involved a purchase of 10,000 shares valued at $18.9K.
No significant insider buying has been recorded for TUSK in the recent period.
No significant insider selling has been recorded for TUSK in the recent period.
Based on recent SEC filings, insider sentiment for TUSK is bearish with an Insider Alignment Score of 1/100 and a net flow of -$173.2M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at Mammoth Energy Services, Inc. (TUSK) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 20 insiders are actively trading TUSK stock, having executed 112 transactions in the past 90 days. The most active insider is Capital Lp Wexford (Executive), who has made 5 transactions totaling $115.3M.
Get notified when executives and directors at TUSK file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Dec 11, 2025 | H. Amron Arthur | Executive | Purchase | 10,000 | $1.89 | $18.9K | |
| Jun 12, 2024 | H. Amron Arthur | Executive | Award | 27,856 | $N/A | $0 | |
| Jun 12, 2024 | M. Jacobi Paul | Executive | Award | 27,856 | $N/A | $0 | |
| Jun 12, 2024 | L. Smith Arthur | Executive | Award | 27,856 | $N/A | $0 | |
| Jun 12, 2024 | D. Palm James | Executive | Award | 27,856 | $N/A | $0 | |
| Jun 12, 2024 | J. Booker Corey | Executive | Award | 27,856 | $N/A | $0 | |
| May 30, 2024 | H. Amron Arthur | Executive | Purchase | 3,000 | $3.65 | $10.9K | |
| May 28, 2024 | H. Amron Arthur | Executive | Purchase | 2,000 | $3.57 | $7.1K | |
| Mar 12, 2024 | H. Amron Arthur | Executive | Purchase | 3,000 | $3.72 | $11.2K | |
| Mar 12, 2024 | E. Davidson Charles | Executive | Other | 535,366 | $N/A | $0 | |
| Dec 19, 2023 | Straehla Arty | Executive | Sale | 40,000 | $4.35 | $174.0K | |
| Dec 18, 2023 | Straehla Arty | Executive | Sale | 30,000 | $4.38 | $131.4K | |
| Dec 15, 2023 | Straehla Arty | Executive | Sale | 40,000 | $4.36 | $174.4K | |
| Dec 14, 2023 | Straehla Arty | Executive | Sale | 55,000 | $4.44 | $244.2K | |
| Dec 13, 2023 | Straehla Arty | Executive | Sale | 25,000 | $4.39 | $109.8K |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 28 | $174.1M | 99.0% |
Payment(F) | 2 | $919.1K | 0.5% |
Purchase(P) | 23 | $904.0K | 0.5% |
Award(A) | 56 | $0 | 0.0% |
Other(J) | 1 | $0 | 0.0% |
Gift(G) | 2 | $0 | 0.0% |
Insider selling pressure at Mammoth Energy Services, Inc. has increased, with 20 insiders executing 112 transactions across all time. Total sales of $174.1M significantly outpace purchases of $904.0K, resulting in a net outflow of $173.2M. This selling activity appears largely discretionary, which may warrant closer attention from investors.