In the last 12 months, insiders at MAMMOTH ENERGY SERVICES, INC. ($TUSK) filed 35 transactions with the SEC: 5 open-market purchases totaling $51,121 and 17 sales totaling $1,223,000. Net insider sentiment: net selling.
MAMMOTH ENERGY SERVICES, INC. operates in the Oil & gas field services, nec industry (Energy & transportation sector).
Most Active Insiders
- Straehla Arty (Chief Executive Officer) — 6 transactions totaling $1,550,846
- SMITH ARTHUR L (Director) — 5 transactions totaling $213,050
- Layton Mark E. (CFO and Secretary) — 1 transaction totaling $201,881
- Booker Corey J. (Director) — 11 transactions totaling $176,275
- Amron Arthur H (Director) — 7 transactions totaling $51,121
View all SEC Filings for MAMMOTH ENERGY SERVICES, INC. (TUSK).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 11, 2025 | Amron Arthur H | Director | P | Common Stock | 10000 | $1.89 | 57,135.0000 | 48,358,000 | 21.22% | 0.02% |
| May 22, 2025 | SMITH ARTHUR L | Director | S | Common Stock | 20000 | $2.51 | 130,034.0000 | 48,065,000 | 13.33% | 0.04% |
| May 20, 2025 | SMITH ARTHUR L | Director | S | Common Stock | 50000 | $2.51 | 150,034.0000 | 48,065,000 | 25.00% | 0.10% |
| May 19, 2025 | SMITH ARTHUR L | Director | S | Common Stock | 15000 | $2.49 | 200,034.0000 | 48,065,000 | 6.98% | 0.03% |
| Dec. 12, 2024 | Amron Arthur H | Director | P | Common Stock | 1000 | $2.97 | 47,135.0000 | 48,127,000 | 2.17% | 0.00% |
| Nov. 25, 2024 | Booker Corey J. | Director | S | Common Stock | 15000 | $3.47 | 125,488.0000 | 48,127,000 | 10.68% | 0.03% |
| Nov. 22, 2024 | Booker Corey J. | Director | S | Common Stock | 10000 | $3.43 | 140,488.0000 | 48,127,000 | 6.65% | 0.02% |
| Nov. 21, 2024 | Booker Corey J. | Director | S | Common Stock | 6709 | $3.25 | 150,488.0000 | 48,127,000 | 4.27% | 0.01% |
| Nov. 20, 2024 | Booker Corey J. | Director | S | Common Stock | 5000 | $3.21 | 157,197.0000 | 48,127,000 | 3.08% | 0.01% |
| Nov. 14, 2024 | Booker Corey J. | Director | S | Common Stock | 3607 | $3.50 | 162,197.0000 | 48,127,000 | 2.18% | 0.01% |
| Nov. 13, 2024 | Booker Corey J. | Director | S | Common Stock | 7100 | $3.68 | 165,804.0000 | 48,127,000 | 4.11% | 0.01% |
| Nov. 8, 2024 | Booker Corey J. | Director | S | Common Stock | 24 | $3.76 | 176,398.0000 | 48,127,000 | 0.01% | 0.00% |
| Nov. 11, 2024 | Booker Corey J. | Director | S | Common Stock | 3494 | $3.61 | 172,904.0000 | 48,127,000 | 1.98% | 0.01% |
| Nov. 7, 2024 | Booker Corey J. | Director | S | Common Stock | 165 | $3.90 | 176,422.0000 | 48,127,000 | 0.09% | 0.00% |
| June 12, 2024 | Palm James D | Director | A | Common Stock | 27856 | $0.00 | 240,144.0000 | 47,777,000 | 13.12% | 0.06% |
| June 12, 2024 | SMITH ARTHUR L | Director | A | Common Stock | 27856 | $0.00 | 215,034.0000 | 47,777,000 | 14.88% | 0.06% |
| June 12, 2024 | Jacobi Paul M. | Director | A | Common Stock | 27856 | $0.00 | 27,856.0000 | 47,777,000 | 9999.99% | 0.06% |
| June 12, 2024 | Amron Arthur H | Director | A | Common Stock | 27856 | $0.00 | 46,135.0000 | 47,777,000 | 152.39% | 0.06% |
| June 12, 2024 | Booker Corey J. | Director | A | Common Stock | 27856 | $0.00 | 176,587.0000 | 47,777,000 | 18.73% | 0.06% |
| May 30, 2024 | Amron Arthur H | Director | P | Common Stock | 3000 | $3.65 | 18,279.0000 | 47,777,000 | 19.63% | 0.01% |
| May 28, 2024 | Amron Arthur H | Director | P | Common Stock | 2000 | $3.57 | 15,279.0000 | 47,777,000 | 15.06% | 0.00% |
| March 12, 2024 | Amron Arthur H | Director | P | Common Stock | 3000 | $3.72 | 23,558.0000 | 47,777,000 | 14.59% | 0.01% |
| March 12, 2024 | WEXFORD CAPITAL LP | Not found | J | Common Stock | 535366 | $0.00 | 22,030,872.0000 | 47,777,000 | 2.37% | 1.12% |
| Dec. 19, 2023 | Straehla Arty | Chief Executive Officer | S | Common Stock | 40000 | $4.35 | 1,013,899.0000 | 47,175,000 | 3.80% | 0.08% |
| Dec. 18, 2023 | Straehla Arty | Chief Executive Officer | S | Common Stock | 30000 | $4.38 | 1,053,899.0000 | 47,175,000 | 2.77% | 0.06% |
| Dec. 14, 2023 | Straehla Arty | Chief Executive Officer | S | Common Stock | 55000 | $4.44 | 1,123,899.0000 | 47,175,000 | 4.67% | 0.12% |
| Dec. 15, 2023 | Straehla Arty | Chief Executive Officer | S | Common Stock | 40000 | $4.36 | 1,083,899.0000 | 47,175,000 | 3.56% | 0.08% |
| Dec. 13, 2023 | Straehla Arty | Chief Executive Officer | S | Common Stock | 25000 | $4.39 | 1,178,899.0000 | 47,175,000 | 2.08% | 0.05% |
| June 7, 2023 | SMITH ARTHUR L | Director | A | Common Stock | 23810 | $0.00 | 187,178.0000 | 47,175,000 | 14.57% | 0.05% |
| June 7, 2023 | Booker Corey J. | Director | A | Common Stock | 23810 | $0.00 | 148,731.0000 | 47,175,000 | 19.06% | 0.05% |
| June 7, 2023 | Palm James D | Director | A | Common Stock | 23810 | $0.00 | 212,288.0000 | 47,175,000 | 12.63% | 0.05% |
| June 7, 2023 | Jacobi Paul M. | Director | A | Common Stock | 23810 | $0.00 | 23,810.0000 | 47,175,000 | 9999.99% | 0.05% |
| June 7, 2023 | Amron Arthur H | Director | A | Common Stock | 23810 | $0.00 | 23,810.0000 | 47,175,000 | 9999.99% | 0.05% |
| March 3, 2023 | Layton Mark E. | CFO and Secretary | F | Common Stock | 36375 | $5.55 | 418,985.0000 | 47,175,000 | 7.99% | 0.08% |
| March 3, 2023 | Straehla Arty | Chief Executive Officer | F | Common Stock | 129220 | $5.55 | 1,203,899.0000 | 47,175,000 | 9.69% | 0.27% |