Ticker · CUSIP 56155L108

TUSK

MAMMOTH ENERGY SVCS INC
···Share
Holders (tracked)
6
Combined shares
502,146
Combined value
$904.2K
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
652024Q12025Q4

SEC event timeline

9 events
  1. +14,925 shares · 2025Q4
    13F
  2. −48,204 shares · 2025Q4
    13F
  3. −44 shares · 2025Q4
    13F
  4. +52,100 shares · 2025Q4
    13F
  5. +11,299 shares · 2025Q3
    13F
  6. −21,851 shares · 2025Q3
    13F
  7. −29,900 shares · 2025Q3
    13F
  8. −58,814 shares · 2025Q3
    13F
  9. +1,800 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Added to1
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
5
$4.2M
2022Q2
7
$2.9M
2022Q3
7
$5K
2022Q4
9
$4.3M
2023Q1
9
$2.4M
2023Q2
7
$6.5M
2023Q3
6
$6.5M
2023Q4
5
$6.9M
2024Q1
5
$5.4M
2024Q2
6
$5.1M
2024Q3
6
$1.0M
2024Q4
5
$456K
2025Q1
7
$902K
2025Q2
6
$1.2M
2025Q3
6
$1.1M
2025Q4
6
$904K

Who owns TUSK

6 super-investors · 2025Q4
Tracked stake
502.1K
shares
Combined value
$904K
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added1Trim2Held2
#ManagerSharesValue
1Ken Griffin
Citadel Advisors
220.1K$407K
2Renaissance Technologies186.1K$344K
3Wellington Management56.4K$104K
4Steve Cohen
Point72
14.9K$28K
5AQR Capital Management11.3K$21K
6T. Rowe Price13.4K$25

Recent moves

20 transactions
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