MAMMOTH ENERGY SERVICES INC (TUSK) Stock Institutional Trading Activity


MAMMOTH ENERGY SERVICES INC (TUSK) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCBuy52,100186,072$344,233
Q3 2025Renaissance Technologies LLCBuy1,800133,972$306,796
Q2 2025Renaissance Technologies LLCSell-3,100132,172$370,082
Q1 2025Renaissance Technologies LLCBuy1,700135,272$275,955
Q4 2024Renaissance Technologies LLCSell-100133,572$400,716
Q3 2024Renaissance Technologies LLCBuy3,000133,672$546,718
Q2 2024Renaissance Technologies LLCSell-3,600130,672$428,604
Q1 2024Renaissance Technologies LLCSell-8,700134,272$489
Q4 2023Renaissance Technologies LLCSell-9,600142,972$638
Q3 2023Renaissance Technologies LLCSell-36,400152,572$708
Q2 2023Renaissance Technologies LLCSell-61,500188,972$913
Q1 2023Renaissance Technologies LLCBuy46,800250,472$1,057
Q4 2022Renaissance Technologies LLCBuy4,200203,672$1,762
Q3 2022Renaissance Technologies LLCSell-4,600199,472$680
Q2 2022Renaissance Technologies LLCSell-36,200204,072$449
Q1 2022Renaissance Technologies LLCBuy123,800240,272$512
Q4 2021Renaissance Technologies LLCSell-23,500116,472$212
Q3 2021Renaissance Technologies LLCSell-82,552139,972$407
Q2 2021Renaissance Technologies LLCBuy88,452222,524$1,021
Q1 2021Renaissance Technologies LLCBuy35,100134,072$713
Q4 2020Renaissance Technologies LLCBuy45,10598,972$440
Q3 2020Renaissance Technologies LLCBuy43,50053,867$86
Q2 2020Renaissance Technologies LLCSell-17,78210,367$12
Q3 2019Renaissance Technologies LLCSell-241,25128,149$70
Q2 2019Renaissance Technologies LLCBuy187,300269,400$1,853
Q1 2019Renaissance Technologies LLCBuy42,50082,100$1,367
Q3 2018Renaissance Technologies LLCSell-158,80039,600$1,152
Q1 2018Renaissance Technologies LLCBuy177,800198,400$6,361
Q3 2017Renaissance Technologies LLCBuy20,60020,600$347

Frequently asked questions about TUSK activity

  • Which institutional owners are buying TUSK?

    Institutional owners buying TUSK include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in TUSK activity?

    "Buy" means an investor increased their reported position in TUSK compared to the prior reporting period. This reflects growing exposure to MAMMOTH ENERGY SERVICES INC (TUSK) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in TUSK increasing?

    Institutional interest in TUSK can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.