Mammoth Energy Services (TUSK) reported third-quarter 2026 revenue of $21.3 million, up 95% from $10.9 million a year earlier. Net income was $0.1 million, or $0.01 per basic and diluted share, for the quarter ended September 30.
The company raised its full-year 2026 outlook, forecasting revenue growth exceeding 90% and an adjusted EBITDA margin in the mid-teens. Mammoth also said it expects 2027 adjusted EBITDA to rise more than 40% from full-year 2026.
- Net income from continuing operations was $0.3 million, compared with a $12.6 million loss a year earlier.
- Adjusted EBITDA from continuing operations was $5.8 million, versus negative $4.8 million in the prior-year quarter.
- Rental services revenue was $9.6 million, while natural sand proppant services revenue was $5.2 million.
- Cash, cash equivalents and marketable securities totaled $37.6 million at September 30, 2026.
- After quarter-end, Mammoth entered a senior secured term loan facility with commitments of up to $58.0 million.
$TUSK Insider Trading Activity
$TUSK insiders have traded $TUSK stock on the open market 6 times in the past 6 months. Of those trades, 6 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $TUSK stock by insiders over the last 6 months:
- CAPITAL LP WEXFORD (Chief Business Officer) purchased 4,019,574 shares for an estimated $10,468,176
- ARTHUR H AMRON has made 4 purchases buying 10,000 shares for an estimated $32,459 and 0 sales.
- MARK LAWRENCE PLAUMANN purchased 5,000 shares for an estimated $15,000
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.
$TUSK Hedge Fund Activity
We have seen 47 institutional investors add shares of $TUSK stock to their portfolio, and 52 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- WEXFORD CAPITAL LP removed 9,996,389 shares (-45.3%) from their portfolio in Q2 2026, for an estimated $32,488,264
- BLACKROCK, INC. removed 1,046,863 shares (-72.0%) from their portfolio in Q2 2026, for an estimated $3,402,304
- JANE STREET GROUP, LLC added 483,808 shares (+2117.0%) to their portfolio in Q2 2026, for an estimated $1,572,376
- MARSHALL WACE, LLP added 395,583 shares (+inf%) to their portfolio in Q2 2026, for an estimated $1,285,644
- JOHNS HOPKINS UNIVERSITY added 387,359 shares (+inf%) to their portfolio in Q2 2026, for an estimated $1,258,916
- GEODE CAPITAL MANAGEMENT, LLC removed 304,898 shares (-49.9%) from their portfolio in Q2 2026, for an estimated $990,918
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 290,096 shares (+inf%) to their portfolio in Q2 2026, for an estimated $942,812
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
