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Insider buying
Mark Lawrence Plaumann bought $15K of Mammoth Energy Services, Inc. (TUSK) stock
Mark Lawrence Plaumann, Dir of Mammoth Energy Services, Inc. (TUSK), bought 5,000 shares of TUSK stock worth $15K, per an SEC Form 4 filed Sep 17, 2026.
It was an open-market purchase.
The trade happened on Sep 16, 2026, 1 day before it was made public.
TUSK has moved +4.0% since the trade date, from $3.02 to $3.14 (Sep 21, 2026 close).
- Traded
- Sep 16, 2026
- Disclosed
- Sep 17, 2026
- Filing delay
- 1 day
- Price since
- +4.0%
- Role
- Dir
- Source
- SEC Form 4
More TUSK insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.