TUSK insider trading — Mammoth Energy Services, Inc.
Over the last 90 days, insiders at Mammoth Energy Services, Inc. (TUSK) made 1 open-market purchase worth $15K and 0 open-market sales worth $0, making them net buyers by $15K. The largest purchase was by Plaumann Mark Lawrence (Director), who bought 5,000 shares for $15K on Sep 16, 2026.
Updated Oct 16, 2026.
Recent TUSK insider transactions
Every Form 4 filed by Mammoth Energy Services, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Plaumann Mark Lawrence | Director | P · Purchase | Direct | 5,000 | $3.00 | $15K | Form 4 |
TUSK insider trading FAQ
Are insiders buying TUSK stock?
Yes. In the last 90 days, Mammoth Energy Services, Inc. insiders made 1 open-market purchase totaling $15K, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading TUSK?
Recent buyers: Plaumann Mark Lawrence.
Where does TUSK insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.