Welcome to our dedicated page for Mammoth Energy Svcs SEC filings (Ticker: TUSK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Locating the storm-restoration receivables or hydraulic fracturing margins inside Mammoth Energy Services’ dense SEC disclosures can feel like hunting for a drill bit in a sand mine. Each 10-K spans hundreds of pages and every 8-K on new grid contracts lands without warning, leaving professionals wondering, “Where can I quickly grasp what matters?”
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Analysts use our coverage to:
- Track Mammoth Energy Services Form 4 insider transactions real-time and spot executive buying patterns
- Compare pressure-pumping fleet utilisation across quarters with AI-generated charts
- Review litigation updates tied to Puerto Rico grid work via curated 8-K briefs
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.
Mammoth Energy Services, Inc. filed its Q3 2025 Form 10‑Q, reporting a strategic shift after divesting parts of its infrastructure business and exiting pressure pumping. Q3 total revenue was $14.8 million, down from $17.1 million a year ago, and the company recorded a net loss of $12.6 million (continuing operations loss of $12.1 million).
For the first nine months, revenue was $46.8 million with a net loss of $4.3 million, reflecting strong discontinued operations results tied to the April sale of transmission, distribution and substation subsidiaries for $108.7 million and the June sale of hydraulic fracturing equipment for $15.0 million. The company recognized a $31.7 million impairment on certain natural sand proppant assets in 2025 and closed the Piranha asset sale with a $2.4 million loss.
Liquidity improved: cash and cash equivalents were $98.2 million, restricted cash $29.5 million, and marketable securities $12.7 million. The revolving credit facility was undrawn with $42.5 million of capacity after $7.5 million of letters of credit. Under a 2024 settlement, PREPA paid $168.4 million and still owes $20.0 million following effectiveness of its plan of adjustment.
Mammoth Energy Services (TUSK)
The company states this information is furnished under Item 2.02 and is not deemed “filed” for purposes of Section 18 of the Exchange Act, nor incorporated into Securities Act registration statements unless specifically identified.
ValueWorks affiliates and Charles Lemonides report ownership stakes in Mammoth Energy Services, Inc. (TUSK). ValueWorks Limited Partners, LP and ValueWorks Capital, LLC each report shared voting and dispositive power over 1,891,521 shares, representing 3.93% of the class. ValueWorks LLC and Charles Lemonides each report shared voting and dispositive power over 2,389,031 shares, representing 4.96% of the class.
The filing states these securities are directly owned by advisory clients of ValueWorks LLC and that no advisory client beneficially owns more than 5% of the common stock. All reporting persons disclaim beneficial ownership except for pecuniary interest.
Mammoth Energy Services, Inc. (TUSK) reports a proposed insider sale under Rule 144: a director filed to sell 102,178 common shares with an aggregate market value of $231,000 on Nasdaq through Sanford C. Bernstein & Co., LLC, with an approximate sale date of 08/12/2025. The filing shows the shares were received as director compensation on four dates: 12/13/2021, 06/02/2022, 06/12/2023 and 06/10/2024; payment for the proposed sale is listed as cash.
The company has 48,130,000 shares outstanding, so the proposed sale represents about 0.21% of outstanding shares. The filer reports nothing to report for securities sold in the past three months and includes the standard representation that they are not aware of any undisclosed material adverse information about the issuer.
Mammoth Energy Services, Inc. reported results for the quarter ended June 30, 2025 showing a net income of $8.848 million for the quarter and $8.311 million for the six months, driven largely by discontinued operations related to the sale of its transmission, distribution and substation businesses and hydraulic fracturing equipment. Continuing operations recorded an operating loss of $36.4 million for the quarter and a net loss from continuing operations of $35.693 million, reflecting an impairment charge of $31.7 million related to natural sand proppant assets.
The company completed a T&D divestiture for aggregate proceeds of $108.7 million and sold hydraulic fracturing equipment for $15.0 million, classifying those businesses as discontinued operations. Cash and restricted cash increased to $157.3 million of continuing operations at June 30, 2025, the revolving credit facility was undrawn with $67.5 million borrowing capacity, and total equity was $262.0 million. The company maintains a large allowance for expected credit losses of $170.983 million related to prior receivable matters.
Mammoth Energy Services, Inc. (NASDAQ: TUSK) filed an 8-K announcing the sale of all hydraulic fracturing equipment held by subsidiaries Stingray Pressure Pumping LLC and Mammoth Equipment Leasing LLC to MGB Manufacturing, LLC for $15.0 million in cash. The divested assets belong to the Company’s Well Completion segment and the transaction closed concurrently with the signing of the Equipment Purchase Agreement on 16 June 2025. Piper Sandler & Co. acted as exclusive advisor.
Because the carrying value of goodwill related to the hydraulic fracturing business now exceeds fair value, Mammoth expects to record a non-cash impairment charge of $7.7-$9.2 million in Q2 2025.
The Company also referenced its previously disclosed T&D Transaction—the April 2025 divestiture of three transmission & distribution subsidiaries—and filed unaudited pro forma condensed consolidated financial statements (Exhibit 99.1) reflecting both divestitures.
Key implications for investors:
- Immediate liquidity boost of $15 million.
- Streamlining of portfolio away from capital-intensive pressure pumping operations.
- Expected goodwill impairment nearly offsets transaction proceeds, pressuring near-term earnings but non-cash in nature.
- Future revenue and EBITDA from hydraulic fracturing will cease unless replaced by new lines or acquisitions.
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