Every Form 4 that Mammoth Energy Services, Inc. (TUSK) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow TUSK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full TUSK filings page.
Mammoth Energy Services director Phillip Lancaster reported an internal share restructuring. On June 26, 2026, 68,152 shares of Common Stock were involved in a transaction coded as an “other acquisition or disposition,” described as an in-kind distribution from MEH SUB LLC.
The footnote states this distribution did not involve a purchase or sale of securities or any additional consideration. Following the transaction, Lancaster directly owns 159,445 shares of Mammoth Energy Services common stock.
MAMMOTH ENERGY SERVICES, INC. director and Chief Business Officer Paul M. Jacobi reported an entity restructuring transaction involving 3,211 shares of common stock on an in-kind basis. According to the disclosure, the shares were distributed from MEH SUB LLC, an entity managed by Wexford Capital LP, and the move did not involve a purchase, sale, or any additional consideration. Following this in-kind distribution, Jacobi directly holds 31,067 shares of Mammoth Energy common stock, indicating a routine reallocation of ownership rather than an open-market trade.
Mammoth Energy Services director Arthur Amron reported two restructuring transactions involving a total of 29,450 shares of common stock on June 17, 2026, both coded as "other" (transaction code J) rather than open-market buys or sells.
One transaction reflects an in-kind distribution of 10,329 shares from MEH SUB LLC, described as not involving a purchase, sale, or any additional consideration, and now held indirectly through Amron Holdings LLC. A second transaction involves 19,121 shares recorded directly in Amron’s name. Following these changes, Amron is shown with 86,256 shares held directly and 10,329 shares held indirectly via Amron Holdings, over which he holds voting and dispositive power.
MAMMOTH ENERGY SERVICES (TUSK) reported a large insider-related purchase and restructuring of share holdings. Entities associated with Wexford Capital completed an open-market purchase of 4,019,574 shares of common stock at an average price of $2.6043 per share, recorded as indirect ownership.
Additional "J" code entries reclassified a total of 7,427,563 shares through in-kind distributions from MEH SUB LLC as payment of management fees and expenses and other non-cash restructuring moves that did not involve a purchase, sale, or additional consideration. After these transactions, the reporting structure shows multi-entity indirect holdings and 1,451,034 shares held directly, with Wexford-related parties deemed to share voting and dispositive power while formally disclaiming beneficial ownership except for any pecuniary interest.
Mammoth Energy Services insider associated entity restructures share holdings. A total of 6,470,441 shares of common stock were involved in "other" transactions coded J, which the footnotes describe as an in-kind distribution from MEH SUB LLC that does not involve a purchase or sale of securities or any additional consideration. Following these transactions, CD Holding Company, LLC holds 4,066,610 shares indirectly, and Charles E. Davidson holds 2,403,831 shares directly, with Davidson also controlling and having voting and disposal power over the shares held by CD Holding Company, LLC.
Mammoth Energy Services director Arthur H. Amron reported buying a total of 4,500 shares of common stock in open-market transactions. He purchased 2,500 shares at a weighted average price of about $3.2199 per share and 2,000 shares at about $3.28 per share. After these purchases, he directly owns 67,135 shares of Mammoth Energy Services common stock.
MAMMOTH ENERGY SERVICES, INC. director Arthur H. Amron reported open-market purchases of the company’s common stock. He bought 2,500 shares on May 26, 2026 at a price of $3.2399 per share and 3,000 shares on May 28, 2026 at $3.25 per share. After these transactions, he directly owns 62,635 shares of Mammoth Energy common stock. The reported prices reflect weighted average purchase prices for multiple trades within price ranges on the same days.
Mammoth Energy Services director Arthur Amron reported buying 10,000 shares of common stock on 12/11/2025 at a weighted average price of $1.89 per share. After this transaction, he directly owns 57,135 shares of Mammoth Energy Services common stock. The shares were purchased in multiple transactions at prices ranging from $1.88 to $1.89 per share, and the reporting person has agreed to provide full price breakdowns to the company, its security holders, or SEC staff upon request.