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MAD RIVER INVESTORS
> TUSK
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 0 | -10,700 | 0 | -24,000 | |
| 06/30/2022 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | 0 | 24,000 | 1,000 | $2.24 |
| 03/31/2022 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | 0 | 23,000 | 4,000 | $2.15 |
| 12/31/2021 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | 0 | 19,000 | -30,000 | $1.78 |
| 09/30/2021 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | 0 | 49,000 | 0 | $4.58 |
| 06/30/2021 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | 0 | 49,000 | -8,000 | $4.58 |
| 03/31/2021 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 10,700 | -1,000 | 57,000 | 5,000 | $5.33 |
| 12/31/2020 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 11,700 | 0 | 52,000 | 33,000 | $4.44 |
| 09/30/2020 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 11,700 | 11,700 | 19,000 | 19,000 | $1.62 |
| 06/30/2019 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 0 | -25,800 | 0 | -430,000 | |
| 03/31/2019 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 25,800 | -4,000 | 430,000 | -106,000 | $16.67 |
| 12/31/2018 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 29,800 | -23,500 | 536,000 | -1,015,000 | $17.99 |
| 09/30/2018 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 53,300 | -4,400 | 1,551,000 | -408,000 | $29.10 |
| 06/30/2018 | MAMMOTH ENERGY SERVICES, INC. | TUSK | 57,700 | 57,700 | 1,959,000 | 1,959,000 | $33.95 |
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