Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Mammoth Energy Services, Inc. (TUSK) since 2016 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Mammoth Energy Services, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1679268.
Total stock buying since 2016: $887,820.
Total stock sales since 2016: $174,329,618.
Total stock option exercises since 2016: $0.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 85,000 | $213,048 | 0 | $0 |
| 2024 | 9,000 | $32,220 | 39,390 | $138,419 | 0 | $0 |
| 2023 | 0 | $0 | 190,000 | $833,675 | 0 | $0 |
| 2022 | 193,952 | $455,761 | 40,417 | $82,329 | 0 | $0 |
| 2021 | 25,000 | $50,000 | 204,779 | $1,087,084 | 0 | $0 |
| 2020 | 20,000 | $25,800 | 5,000 | $8,880 | 0 | $0 |
| 2019 | 52,596 | $71,067 | 2,913 | $4,194 | 0 | $0 |
| 2018 | 0 | $0 | 4,434,214 | $167,979,365 | 0 | $0 |
| 2017 | 12,460 | $187,992 | 26,767 | $494,340 | 0 | $0 |
| 2016 | 4,332 | $64,980 | 248,047 | $3,488,284 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-05 | 0 | $0 | 85,000 | $213,048 | 0 | $0 |
| 2024-12 | 1,000 | $2,971 | 0 | $0 | 0 | $0 |
| 2024-11 | 0 | $0 | 39,390 | $138,419 | 0 | $0 |
| 2024-05 | 5,000 | $18,092 | 0 | $0 | 0 | $0 |
| 2024-03 | 3,000 | $11,157 | 0 | $0 | 0 | $0 |
| 2023-12 | 0 | $0 | 190,000 | $833,675 | 0 | $0 |
| 2022-06 | 193,952 | $455,761 | 0 | $0 | 0 | $0 |
| 2022-03 | 0 | $0 | 40,417 | $82,329 | 0 | $0 |
| 2021-12 | 25,000 | $50,000 | 0 | $0 | 0 | $0 |
| 2021-03 | 0 | $0 | 204,779 | $1,087,084 | 0 | $0 |
| 2020-11 | 0 | $0 | 5,000 | $8,880 | 0 | $0 |
| 2020-09 | 20,000 | $25,800 | 0 | $0 | 0 | $0 |
| 2019-11 | 52,596 | $71,067 | 2,913 | $4,194 | 0 | $0 |
| 2018-12 | 0 | $0 | 6,000 | $149,100 | 0 | $0 |
| 2018-11 | 0 | $0 | 38,841 | $1,042,163 | 0 | $0 |
| 2018-07 | 0 | $0 | 385,000 | $14,633,849 | 0 | $0 |
| 2018-06 | 0 | $0 | 4,000,000 | $152,040,000 | 0 | $0 |
| 2018-03 | 0 | $0 | 4,373 | $114,253 | 0 | $0 |
| 2017-11 | 0 | $0 | 26,767 | $494,340 | 0 | $0 |
| 2017-08 | 6,000 | $76,524 | 0 | $0 | 0 | $0 |
| 2017-06 | 6,000 | $101,460 | 0 | $0 | 0 | $0 |
| 2017-02 | 460 | $10,008 | 0 | $0 | 0 | $0 |
| 2016-10 | 4,332 | $64,980 | 248,047 | $3,488,284 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-05-22 | Smith Arthur L (Director) | Sale | 20,000 | 2.51 | 50,199 |
| 2025-05-20 | Smith Arthur L (Director) | Sale | 50,000 | 2.51 | 125,499 |
| 2025-05-19 | Smith Arthur L (Director) | Sale | 15,000 | 2.49 | 37,350 |
| 2024-12-12 | Amron Arthur H (Director) | Buy | 1,000 | 2.97 | 2,971 |
| 2024-11-25 | Booker Corey J. (Director) | Sale | 15,000 | 3.47 | 52,050 |
| 2024-11-22 | Booker Corey J. (Director) | Sale | 10,000 | 3.43 | 34,300 |
| 2024-11-14 | Booker Corey J. (Director) | Sale | 3,607 | 3.50 | 12,624 |
| 2024-11-13 | Booker Corey J. (Director) | Sale | 7,100 | 3.68 | 26,099 |
| 2024-11-11 | Booker Corey J. (Director) | Sale | 3,494 | 3.61 | 12,613 |
| 2024-11-08 | Booker Corey J. (Director) | Sale | 24 | 3.76 | 90 |
| 2024-11-07 | Booker Corey J. (Director) | Sale | 165 | 3.90 | 643 |
| 2024-05-30 | Amron Arthur H (Director) | Buy | 3,000 | 3.65 | 10,944 |
| 2024-05-28 | Amron Arthur H (Director) | Buy | 2,000 | 3.57 | 7,148 |
| 2024-03-12 | Amron Arthur H (Director) | Buy | 3,000 | 3.72 | 11,157 |
| 2023-12-19 | Straehla Arty (Chief Executive Officer) | Sale | 40,000 | 4.35 | 174,160 |
| 2023-12-18 | Straehla Arty (Chief Executive Officer) | Sale | 30,000 | 4.38 | 131,280 |
| 2023-12-15 | Straehla Arty (Chief Executive Officer) | Sale | 40,000 | 4.36 | 174,440 |
| 2023-12-14 | Straehla Arty (Chief Executive Officer) | Sale | 55,000 | 4.44 | 244,145 |
| 2023-12-13 | Straehla Arty (Chief Executive Officer) | Sale | 25,000 | 4.39 | 109,650 |
| 2022-06-17 | Jacobs Joseph | Buy | 10,382 | 2.17 | 22,580 |
| 2022-06-16 | Jacobs Joseph | Buy | 35,000 | 2.13 | 74,410 |
| 2022-06-15 | Jacobs Joseph | Buy | 5,100 | 2.23 | 11,378 |
| 2022-06-14 | Jacobs Joseph | Buy | 20,600 | 2.28 | 46,967 |
| 2022-06-13 | Jacobs Joseph | Buy | 25,102 | 2.35 | 59,014 |
| 2022-06-10 | Jacobs Joseph | Buy | 54,779 | 2.46 | 134,537 |
| 2022-06-09 | Jacobs Joseph | Buy | 27,489 | 2.48 | 68,172 |
| 2022-06-08 | Jacobs Joseph | Buy | 15,500 | 2.50 | 38,703 |
| 2022-03-10 | Layton Mark E. (CFO and Secretary) | Sale | 40,417 | 2.04 | 82,329 |
| 2021-12-13 | Smith Arthur L | Buy | 25,000 | 2.00 | 50,000 |
| 2021-03-11 | Layton Mark E. (CFO and Secretary) | Sale | 55,789 | 5.22 | 290,995 |
| 2021-03-10 | Straehla Arty (Chief Executive Officer) | Sale | 102,435 | 5.29 | 541,573 |
| 2021-03-09 | Straehla Arty (Chief Executive Officer) | Sale | 46,555 | 5.47 | 254,516 |
| 2020-11-10 | Straehla Arty (Chief Executive Officer) | Sale | 5,000 | 1.78 | 8,880 |
| 2020-09-04 | Smith Arthur L | Buy | 20,000 | 1.29 | 25,800 |
| 2019-11-21 | Ross Matthew | Sale | 2,913 | 1.44 | 4,194 |
| 2019-11-20 | Jacobs Joseph | Buy | 16,692 | 1.33 | 22,166 |
| 2019-11-13 | Jacobs Joseph | Buy | 35,904 | 1.36 | 48,901 |
| 2018-12-03 | Smith Arthur L | Sale | 6,000 | 24.85 | 149,100 |
| 2018-11-12 | Straehla Arty (Chief Executive Officer) | Sale | 2,230 | 26.20 | 58,426 |
| 2018-11-08 | Straehla Arty (Chief Executive Officer) | Sale | 36,611 | 26.87 | 983,737 |
| 2018-07-30 | Jacobs Joseph | Sale | 266,026 | 38.01 | 10,111,648 |
| 2018-07-30 | Gulfport Energy Corp (Director) | Sale | 118,974 | 38.01 | 4,522,201 |
| 2018-06-29 | Jacobs Joseph | Sale | 2,764,400 | 38.01 | 105,074,844 |
| 2018-06-29 | Gulfport Energy Corp (Director) | Sale | 1,235,600 | 38.01 | 46,965,156 |
| 2018-03-01 | Layton Mark E. (CFO and Secretary) | Sale | 4,373 | 26.13 | 114,253 |
| 2017-11-15 | Straehla Arty (Chief Executive Officer) | Sale | 7,553 | 17.81 | 134,511 |
| 2017-11-14 | Layton Mark E. (CFO and Secretary) | Sale | 925 | 19.01 | 17,587 |
| 2017-11-14 | Straehla Arty (Chief Executive Officer) | Sale | 18,289 | 18.71 | 342,242 |
| 2017-08-25 | Palm James D (Director) | Buy | 2,000 | 12.60 | 25,200 |
| 2017-08-24 | Palm James D (Director) | Buy | 4,000 | 12.83 | 51,324 |
| 2017-06-09 | Smith Arthur L (Director) | Buy | 6,000 | 16.91 | 101,460 |
| 2017-02-28 | Straehla Arty (Chief Executive Officer) | Buy | 460 | 21.76 | 10,008 |
| 2016-10-19 | Layton Mark E. (CFO and Secretary) | Buy | 3,000 | 15.00 | 45,000 |
| 2016-10-19 | Straehla Arty (Chief Executive Officer) | Buy | 1,332 | 15.00 | 19,980 |
| 2016-10-19 | Jacobs Joseph | Sale | 171,797 | 14.06 | 2,415,981 |
| 2016-10-19 | Gulfport Energy Corp (Director) | Sale | 76,250 | 14.06 | 1,072,303 |
Insider trading activities including stock purchases, stock sales, and option exercises of TUSK listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Mammoth Energy Services, Inc. (symbol TUSK, CIK number 1679268) see the Securities and Exchange Commission (SEC) website.