Renaissance Technologies (RenTech)'s TUSK Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC (Rentech)) currently holds 186,072 shares of Mammoth Energy Services, Inc. (TUSK) worth $344,233, representing 0.00% of the portfolio. First purchased in 2017-Q3, this long-term strategic position has been held for 33 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in TUSK, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2018, adding 198,400 shares. Largest reduction occurred in Q3 2019, reducing 241,251 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Mammoth Energy Services (TUSK) Holding Value Over Time
Track share changes against reported price movement
Quarterly Mammoth Energy Services (TUSK) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +52,100 | Add 38.89% | 186,072 | $1.85 |
| Q3 2025 | +1,800 | Add 1.36% | 133,972 | $2.29 |
| Q2 2025 | -3,100 | Reduce 2.29% | 132,172 | $2.80 |
| Q1 2025 | +1,700 | Add 1.27% | 135,272 | $2.04 |
| Q4 2024 | -100 | Reduce 0.07% | 133,572 | $3.00 |
| Q3 2024 | +3,000 | Add 2.30% | 133,672 | $4.09 |
| Q2 2024 | -3,600 | Reduce 2.68% | 130,672 | $3.28 |
| Q1 2024 | -8,700 | Reduce 6.09% | 134,272 | $3.64 |
| Q4 2023 | -9,600 | Reduce 6.29% | 142,972 | $4.46 |
| Q3 2023 | -36,400 | Reduce 19.26% | 152,572 | $4.64 |
| Q2 2023 | -61,500 | Reduce 24.55% | 188,972 | $0.00 |
| Q1 2023 | +46,800 | Add 22.98% | 250,472 | $0.00 |
| Q4 2022 | +4,200 | Add 2.11% | 203,672 | $0.01 |
| Q3 2022 | -4,600 | Reduce 2.25% | 199,472 | $3.41 |
| Q2 2022 | -36,200 | Reduce 15.07% | 204,072 | $2.20 |
| Q1 2022 | +123,800 | Add 106.29% | 240,272 | $2.13 |
| Q4 2021 | -23,500 | Reduce 16.79% | 116,472 | $1.82 |
| Q3 2021 | -82,552 | Reduce 37.10% | 139,972 | $2.91 |
| Q2 2021 | +88,452 | Add 65.97% | 222,524 | $4.59 |
| Q1 2021 | +35,100 | Add 35.46% | 134,072 | $5.32 |
| Q4 2020 | +45,105 | Add 83.73% | 98,972 | $4.45 |
| Q3 2020 | +43,500 | Add 419.60% | 53,867 | $1.60 |
| Q2 2020 | +10,367 | New Buy | 10,367 | $1.16 |
| Q4 2019 | -28,149 | Sold Out | 0 | $0.00 |
| Q3 2019 | -241,251 | Reduce 89.55% | 28,149 | $2.49 |
| Q2 2019 | +187,300 | Add 228.14% | 269,400 | $6.88 |
| Q1 2019 | +82,100 | New Buy | 82,100 | $16.65 |
| Q4 2018 | -39,600 | Sold Out | 0 | $0.00 |
| Q3 2018 | -194,768 | Reduce 83.10% | 39,600 | $29.09 |
| Q2 2018 | +35,968 | Add 18.13% | 234,368 | $33.96 |
| Q1 2018 | +198,400 | New Buy | 198,400 | $32.06 |
| Q4 2017 | -20,600 | Sold Out | 0 | $0.00 |
| Q3 2017 | +20,600 | New Buy | 20,600 | $16.84 |
Renaissance Technologies (RenTech)'s Mammoth Energy Services Investment FAQs
Renaissance Technologies (RenTech) first purchased Mammoth Energy Services, Inc. (TUSK) in Q3 2017, acquiring 20,600 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Mammoth Energy Services, Inc. (TUSK) for 33 quarters since Q3 2017.
Renaissance Technologies (RenTech)'s largest addition to Mammoth Energy Services, Inc. (TUSK) was in Q1 2018, adding 198,400 shares worth $6.36 M.
According to the latest 13F filing for Q4 2025, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC (Rentech), owns 186,072 shares of Mammoth Energy Services, Inc. (TUSK), valued at approximately $344,233.
As of the Q4 2025 filing, Mammoth Energy Services, Inc. (TUSK) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Mammoth Energy Services, Inc. (TUSK) was 269,400 shares, as reported at the end of Q2 2019.