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Mammoth Energy Services, Inc. (TUSK) stock

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NASDAQ: TUSK Nasdaq Oil & Gas Equipment & Services Next results ~January 25, 2027

Mammoth Energy Services, Inc. is a US-listed company in the oil & gas equipment & services industry. Its financial year ends in December.

Stock price today

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Third-party market data · may be delayed

Fair value per share

Under review: data-quality checks not passed.

Price vs value

Under review: data-quality checks not passed. We'll show the comparison once resolved.

Mammoth Energy Services, Inc. valuation: adjust assumptions and compare models →

Who’s trading

What company insiders, investment funds and members of Congress have been doing with the stock, from their own filings.

  • Insiders3 buying, 0 selling7 purchases and 0 sales by directors and officers, last 12 monthsInsider trades
  • Funds61 adding, 46 cuttingOf 23 active managers that changed their stake, 14 added; quarter to June 30, 2026Fund buyers and sellers

Value diary

Our note on each quarter Mammoth Energy Services files

10-Q filed October 30: Mammoth Energy Services

Revenue for the twelve months to September 2026 was $79m, up 146.4% on a year earlier, faster than the 79.0% growth a quarter earlier. Free-cash-flow margin fell to -181.1% from 243.2% a year earlier. Operating margin widened to -10.6% from -178.3%.

Our model value for Mammoth Energy Services is under review, so past values are not shown until it is resolved.

Source: 10-Q filed October 30, 2026 on SEC EDGAR · Financials · Valuation

Earlier notes (1)

Where Mammoth Energy Services stands after its latest 10-Q

Revenue for the twelve months to June 2026 was $60m, up 58.0% on a year earlier, faster than the 11.4% growth a quarter earlier. Free-cash-flow margin fell to -194.9% from 243.5% a year earlier. Operating margin widened to -31.1% from -140.8%. It passes 2 of our 2 financial-health checks.

10-Q on SEC EDGAR

Written from the company's filings and our models when each quarter's report arrives. Figures in older notes are as published at the time. Not investment advice.

The Fundamentalytics view

Next results ~January 25, 2027 (estimated)

Mammoth Energy Services, Inc.'s trailing-twelve-month revenue grew 146.4% year on year, with a free-cash-flow margin of -181.1%.

Current signal Revenue growth accelerating: TTM revenue growth rose to 146.4% (+67.4pp vs the prior quarter).

Assembled from SEC-filed figures — the full workings are on this page and in our methodology. Observations, not recommendations.

Highlights

How we pick these

Strengths

  • Fast growth. Revenue grew 146.4% over the last 12 months.
  • Growth speeding up. The growth rate is 67.4 points higher than a quarter earlier.
  • Margins widening. Operating margin is up 167.7 points on a year ago.
  • Net cash. Cash exceeds long-term debt by $0.0bn.

Things to watch

  • Loss-making. Operating margin is -10.6%: costs exceed revenue.
  • Burning cash. Free cash flow was -181.1% of revenue over the last 12 months.
  • Volatile shares. Over the past year the shares showed annualised volatility of 72% and a beta of 0.7 against the S&P 500.
  • Gross margin slipping. Gross margin is down 52.8 points on a year ago.
  • Weak cash conversion. Free cash flow was -1062% of net income over the last 12 months.

Latest results: FY2026 Q3

Filed October 30, 2026
Earnings per share
$0.17 against an average estimate of -$0.06: beat by 383.3%
Revenue
$21m, up 96.7% on a year earlier
Share reaction
+6.5% in the first session after the results on October 30, 2026, against -2.2% for the S&P 500
Next report
October 30, 2026

Mammoth Energy Services' figures from its SEC filings and results release; estimates are the analysts' average. Not a recommendation.

Price chart

  • 1 day-2.5%
  • 1 week+11.5%
  • 1 month+10.7%
  • This year+67.6%
  • 1 year+52.0%
  • 5 years-19.3%
  • S&P 500 this year+11.2%

Closing prices to 2026-11-02. Price change only, dividends excluded.

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Third-party market data · may be delayed

At a glance

Trailing twelve months, from SEC filings

Profitability

Revenue (TTM)
$78.9M
Operating margin
-10.6%
Net margin
17.1%
EPS (TTM, diluted)
$0.28

Growth

Revenue growth
+146.4%
Change in growth rate
+67.4 pts
Share count change
+0.1%

Cash

Free cash flow (TTM)
-$143M
FCF margin
-181.1%
Stock pay % of revenue
0.6%

Earnings

Last results
October 30, 2026
Next results (est.)
January 25, 2027

News & updates

Updated October 31, 2026

Company announcements, filed results and changes that matter to shareholders.

  1. Announcement
  2. Agreement
  3. Results
  4. Results

Refreshed hourly when new source data is available. Summaries are checked against company releases and SEC filings. Company announcement headlines are labelled when a checked summary is unavailable.

Valuation

Mammoth Energy Services, Inc. valuation models and calculator

Fundamentalytics rating

model v1.6 · 2026-11-03

Not rated: data-quality checks not passed.

The inputs used by the models below have passed source checks. Individual model values are available below and in the interactive valuator. Their differences are shown explicitly; the platform combined value and recommendation remain withheld.

Valuation models

We value Mammoth Energy Services, Inc. as an operating company, with every model that fits that kind of business. Cost of equity 8.3%: the 10-year Treasury yield (4.9%) plus a beta of 0.74 times a 4.5% equity risk premium.

Value per share by model
Model Value per share In the combined value?
Revenue-to-maturity model Revenue grown to maturity with the cash margin moving to the industry's; for companies not yet profitable. — Does not apply: This model is withheld pending its input or assumption review.
Price-to-earnings vs peers Earnings per share times peers' typical (harmonic-mean) price-to-earnings. ~$4.9 ~$4.1–$8.4 Included
Residual income Book value plus the present value of returns above the cost of equity, fading over ten years. — Does not apply: This model is withheld pending its input or assumption review.
Justified price-to-book Book value times (return on equity - growth) / (cost of equity - growth): steady-state returns. — Does not apply: This model is withheld pending its input or assumption review.
Price-to-sales vs peers Sales per share times peers' typical price-to-sales; used only when earnings are negative. — Does not apply: This model is withheld pending its input or assumption review.
Combined value Individual source-checked model scenarios are available. The platform combined value and recommendation remain withheld. — Combined value withheld. Review the individual models and their assumptions.

Different models fail in different ways, so where several apply we average them rather than trust one. Peer-based models compare Mammoth Energy Services, Inc. with Oil & Gas Equipment & Services in our coverage, using third-party market data. Model values are estimates under stated assumptions, updated as new filings arrive; not price targets or investment advice. How each model works.

Valuation multiples over time Market data may be delayed

At fiscal year end 2016201720182019202020212022202320242025Now
Share price$14.87$19.20$17.73$2.20$4.45$1.82$8.65$4.46$3.00$1.85$3.10
Market value$468m$799m$798m$99m$203m$84m$408m$213m$144m$89m$150m
+ Net debt (− = net cash)−$29m$94m−$68m$74m$68m$77m$66m$28m−$61m−$102m−$13m
Enterprise value$439m$894m$730m$173m$271m$161m$474m$242m$83m−$13m$136m
Multiples
Price / sales 2.0x1.2x0.5x0.2x0.6x0.4x1.1x0.7x3.2x2.0x1.9x
Price / earnings —13.6x3.4x——————19.4x11.1x
Price / free cash flow 26.1x—4.0x—n/m—161.4x17.8x0.8x——
EV / EBITDA 11.6x5.8x1.5x———10.7x10.0x——18.5x

Market value uses the period's diluted share count; figures for each fiscal year use that year's results and the price at year end. "Now" uses today's price and the last twelve months.

Moat

30 /100

Weak moat

How hard Mammoth Energy Services's competitive advantage looks for rivals to wear away, judged from 10 years of its own filings: returns on capital, pricing power, profit durability, cash conversion and discipline.

  • Returns on capital 0 / 20

    Cash operating profit has been a median 1.8% of total assets over 6 years.

  • Pricing power 1 / 20

    Gross margin has been a median 22.4%, moving by 17.7 percentage points (standard deviation) across 9 years.

  • Durability 10 / 20

    Operating margin has been a median -10.5%; its worst year was -178.3%.

  • Cash conversion 4 / 20

    Free cash flow was positive in 4 of 10 years, at a median -4.4% of revenue.

  • Discipline 15 / 20

    The diluted share count rose 4.9% over five years; stock-based pay has been a median 0.6% of revenue.

AI disruption exposure: Low. In this industry, the business rests on physical assets, regulated networks or products AI itself depends on.

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

Forecasts and guidance

Analysts' consensus

No analyst estimates are published for Mammoth Energy Services, Inc.: too few analysts cover it.

Earnings against estimates

Quarter toEstimateActualSurprise
Mar 2023 −$0.06 $0.17 +383.3%

Adjusted EPS as companies report it, against the average analyst estimate.

Positioning

Short interest
0.4%
of tradable shares
Days to cover
1.14
at average volume
Short interest, 1 month
+13%
to October 15, 2026
Held by institutions
54%
of shares
Held by insiders
15.8%
of shares
Employees
115
full time

Consensus figures average analysts' published estimates (third-party data); guidance is the company's own. Neither is our forecast. Short interest is reported twice a month and lags. Market data may be delayed.

This section is general information, not investment advice or a personal recommendation, and it does not take account of your objectives or circumstances. Forecasts and guidance are estimates, not promises: companies miss their own guidance and analysts' figures are often revised. Prices can fall as well as rise, and you can lose money. See our disclaimer.

Share-price performance

Market data may be delayed

Recent prices are available. Older price history and the statistics that need it are being loaded in the background.

What moved the share price

Last 12 months +52.0%

$2.04 on October 31, 2025 to $3.10

ThenNowEffect
Revenue (last 12 months) $38m $68m +79.0%
P/S multiple 2.6x 2.2x −14.8%
Share count 48m 48m −0.3%

Biggest factor: revenue. Loss-making at one end, so the split uses price/sales.

Last 3 years −31.9%

$4.55 on November 3, 2023 to $3.10

ThenNowEffect
Revenue (last 12 months) $402m $68m −83.0%
Net margin 4.1% 1.0% −74.4%
P/E multiple 13.2x n/m +1491.8%
Share count 47m 48m −1.7%

Biggest factor: p/e multiple.

The effects multiply back to the price change exactly. Results are the last 12 months as known on each date (filings assumed public 45 days after quarter end).

Return and risk by year

Calendar year 202120222023202420252026 to date
Return
TUSK−59%+375%−48%−33%−38%+68%
Industry peers (median)+9%+38%−6%−5%+3%+18%
S&P 500+29%−18%+26%+25%+18%+11%
Months that ended higher
TUSK25%67%42%42%33%55%
S&P 50075%42%67%75%75%46%
Largest fall from a high during the year
TUSK−74%−40%−60%−43%−50%−34%
S&P 500−5%−25%−10%−8%−19%−9%

Worst fall since October 14, 2016: 99% from June 22, 2018 to April 7, 2020. Getting back needed a 6793% gain, and the shares have not yet recovered.

Price behaviour

52-week range
$1.73 – $3.84
From 52-week high
−19.3%
vs 50-day average
+4.9%
vs 200-day average
+11.4%
Volatility (1 year)
72%
Beta vs S&P 500
0.71

Volatility is the annualised standard deviation of daily returns. Beta 1.5 means the shares typically moved 1.5% for each 1% move in the S&P 500 over the past year. Prices to November 2, 2026.

Share price after results

Next day
6 up, 6 down
typical move ±9.6%
After a week
5 up, 6 down
typical move ±10.2%
After a month
5 up, 6 down
typical move ±11.5%
Results releasedNext dayS&P 500 next day5 days21 days
October 30, 2026 +6.5% −2.2% — —
August 7, 2026 +14.3% +0.6% +12.9% +8.7%
May 11, 2026 +23.0% +0.1% +33.5% +41.0%
March 6, 2026 −13.7% −0.4% −15.3% −3.9%
October 31, 2025 +0.9% +0.5% −7.5% −17.1%
August 8, 2025 −10.2% +0.6% −8.6% −5.3%
May 7, 2025 −10.9% +1.1% −6.8% +1.1%
March 7, 2025 −6.7% −2.1% +4.7% +6.5%
November 1, 2024 −18.9% +0.2% −17.7% −23.2%
August 9, 2024 +2.2% +0.5% +1.6% −4.6%
May 2, 2024 −5.2% +2.2% −0.6% +11.4%
March 1, 2024 +2.5% +0.8% +3.0% −3.8%

From the close before the release date to the close 1, 5 and 21 trading days after it, so releases before the open and after the close are both captured. Past moves don't predict future ones.

Fundamentals

Revenue (TTM) Mammoth Energy Services, Inc.
$0 $100M $200M $300M $400M FY23 Q4 FY24 Q3 FY25 Q2 FY26 Q3 Revenue (TTM), FY23 Q4: $309.5M Revenue (TTM), FY24 Q1: $236.4M Revenue (TTM), FY24 Q2: $177M Revenue (TTM), FY24 Q3: $129M Revenue (TTM), FY24 Q4: $73.4M Revenue (TTM), FY25 Q1: $41.9M Revenue (TTM), FY25 Q2: $38.2M Revenue (TTM), FY25 Q3: $32M Revenue (TTM), FY25 Q4: $44.3M Revenue (TTM), FY26 Q1: $54.7M Revenue (TTM), FY26 Q2: $68.4M Revenue (TTM), FY26 Q3: $78.9M $78.9M

Source: SEC EDGAR filings. Retrieved October 30, 2026.

View chart data
Period Revenue (TTM)
FY23 Q4 $309.5M
FY24 Q1 $236.4M
FY24 Q2 $177M
FY24 Q3 $129M
FY24 Q4 $73.4M
FY25 Q1 $41.9M
FY25 Q2 $38.2M
FY25 Q3 $32M
FY25 Q4 $44.3M
FY26 Q1 $54.7M
FY26 Q2 $68.4M
FY26 Q3 $78.9M
Revenue growth, TTM YoY Mammoth Energy Services, Inc.
-100% 0% 100% 200% FY23 Q4 FY24 Q3 FY25 Q2 FY26 Q3 Revenue growth, TTM YoY, FY23 Q4: -14.5% Revenue growth, TTM YoY, FY24 Q1: -43.2% Revenue growth, TTM YoY, FY24 Q2: -56.0% Revenue growth, TTM YoY, FY24 Q3: -64.1% Revenue growth, TTM YoY, FY24 Q4: -76.3% Revenue growth, TTM YoY, FY25 Q1: -82.3% Revenue growth, TTM YoY, FY25 Q2: -78.4% Revenue growth, TTM YoY, FY25 Q3: -75.2% Revenue growth, TTM YoY, FY25 Q4: -39.7% Revenue growth, TTM YoY, FY26 Q1: 30.6% Revenue growth, TTM YoY, FY26 Q2: 79.0% Revenue growth, TTM YoY, FY26 Q3: 146.4% 146.4%

Source: SEC EDGAR filings. Retrieved October 30, 2026.

View chart data
Period Revenue growth, TTM YoY
FY23 Q4 -14.5%
FY24 Q1 -43.2%
FY24 Q2 -56.0%
FY24 Q3 -64.1%
FY24 Q4 -76.3%
FY25 Q1 -82.3%
FY25 Q2 -78.4%
FY25 Q3 -75.2%
FY25 Q4 -39.7%
FY26 Q1 30.6%
FY26 Q2 79.0%
FY26 Q3 146.4%
Operating margin (TTM) Mammoth Energy Services, Inc.
-300% -200% -100% 0% FY23 Q4 FY24 Q3 FY25 Q2 FY26 Q3 Operating margin (TTM), FY23 Q4: -5.4% Operating margin (TTM), FY24 Q1: -14.8% Operating margin (TTM), FY24 Q2: -69.9% Operating margin (TTM), FY24 Q3: -93.7% Operating margin (TTM), FY24 Q4: -168.2% Operating margin (TTM), FY25 Q1: -269.0% Operating margin (TTM), FY25 Q2: -140.8% Operating margin (TTM), FY25 Q3: -178.3% Operating margin (TTM), FY25 Q4: -129.7% Operating margin (TTM), FY26 Q1: -104.5% Operating margin (TTM), FY26 Q2: -25.4% Operating margin (TTM), FY26 Q3: -10.6% -10.6%

Source: SEC EDGAR filings. Retrieved October 30, 2026.

View chart data
Period Operating margin (TTM)
FY23 Q4 -5.4%
FY24 Q1 -14.8%
FY24 Q2 -69.9%
FY24 Q3 -93.7%
FY24 Q4 -168.2%
FY25 Q1 -269.0%
FY25 Q2 -140.8%
FY25 Q3 -178.3%
FY25 Q4 -129.7%
FY26 Q1 -104.5%
FY26 Q2 -25.4%
FY26 Q3 -10.6%
FCF margin (TTM) Mammoth Energy Services, Inc.
-400% -200% 0% 200% 400% FY23 Q4 FY24 Q3 FY25 Q2 FY26 Q3 FCF margin (TTM), FY23 Q4: 3.9% FCF margin (TTM), FY24 Q1: 24.5% FCF margin (TTM), FY24 Q2: 16.7% FCF margin (TTM), FY24 Q3: 31.4% FCF margin (TTM), FY24 Q4: 231.2% FCF margin (TTM), FY25 Q1: 307.7% FCF margin (TTM), FY25 Q2: 243.5% FCF margin (TTM), FY25 Q3: 243.2% FCF margin (TTM), FY25 Q4: -201.2% FCF margin (TTM), FY26 Q1: -194.0% FCF margin (TTM), FY26 Q2: -172.0% FCF margin (TTM), FY26 Q3: -181.1% -181.1%

Source: SEC EDGAR filings. Retrieved October 30, 2026.

View chart data
Period FCF margin (TTM)
FY23 Q4 3.9%
FY24 Q1 24.5%
FY24 Q2 16.7%
FY24 Q3 31.4%
FY24 Q4 231.2%
FY25 Q1 307.7%
FY25 Q2 243.5%
FY25 Q3 243.2%
FY25 Q4 -201.2%
FY26 Q1 -194.0%
FY26 Q2 -172.0%
FY26 Q3 -181.1%

Data: SEC EDGAR XBRL company facts (as filed in 10-K/10-Q); forms 10-K, 10-Q. Generated November 3, 2026. Definitions in our methodology.

Financial statements

US$ millions unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Fiscal year 2014 Dec 2014 2015 Dec 2015 2016 Dec 2016 2017 Dec 2017 2018 Dec 2018 2019 Dec 2019 2020 Dec 2020 2021 Dec 2021 2022 Dec 2022 2023 Dec 2023 2024 Dec 2024 2025 Dec 2025 LTM Sept 2026
Income
Revenue 260 368 231 691 1,690 625 313 229 362 309 46 44 79
Gross profit 68 93 58 209 596 81 81 31 83 62 — — —
EBITDA 51 59 38 155 502 −16 −55 −47 44 24 −110 −49 7
Operating income 16 −16 −35 63 394 −128 −149 −123 −16 −17 −120 −57 −8
Net income −2 −22 −92 59 236 −79 −108 −101 −1 −3 −207 5 13
Diluted EPS −$0.10 −$0.73 −$2.94 $1.42 $5.24 −$1.76 −$2.36 −$2.18 −$0.01 −$0.07 −$4.31 $0.10 $0.28
Growth (year on year)
Revenue — +41.8% −37.3% +199.8% +144.4% −63.0% −49.9% −26.9% +58.1% −14.5% −85.3% −2.9% +146.4%
EBITDA — +14.2% −35.8% +311.0% +224.1% −103.2% — — — −45.1% −554.9% — —
Operating income — −199.8% — — +528.4% −132.5% — — — — — — —
Net income — — — — +300.2% −133.5% — — — — — — —
Diluted EPS — — — — +269.0% −133.6% — — — — — — —
Margins
Gross margin 26.4% 25.3% 25.0% 30.2% 35.3% 13.0% 25.9% 13.4% 23.1% 19.9% — — —
EBITDA margin 19.8% 16.0% 16.3% 22.4% 29.7% −2.6% −17.7% −20.5% 12.2% 7.8% −241.5% −110.1% 9.3%
Operating margin 6.1% −4.3% −15.0% 9.1% 23.3% −20.5% −47.5% −53.7% −4.5% −5.4% −263.9% −129.7% −10.6%
Net margin −0.8% −5.9% −40.1% 8.5% 14.0% −12.6% −34.4% −44.3% −0.2% −1.0% −454.7% 10.4% 17.1%
Free-cash-flow margin −39.8% 11.2% 7.8% −10.8% 11.8% −20.9% 0.1% −10.8% 0.7% 3.9% 393.7% −201.2% −181.1%
Cash flow
Cash from operations 8 70 30 58 387 −95 7 −19 15 31 181 −19 −19
Capital spending 112 28 12 132 187 35 7 6 13 19 1 71 123
Free cash flow −103 41 18 −75 199 −131 0 −25 3 12 180 −89 −143
Stock-based pay 4 0 1 4 5 4 2 1 1 1 1 0 1
Free cash flow after stock pay −107 41 17 −78 194 −135 −2 −26 2 11 179 −90 −143
Balance sheet
Cash 17 4 29 6 68 6 15 10 17 17 61 102 13
Total debt 0 95 0 100 0 80 83 87 84 45 0 0 0
Net debt (negative = net cash) −17 91 −29 94 −68 74 68 77 66 28 −61 −102 −13
Diluted shares 21m 30m 32m 42m 45m 45m 46m 46m 47m 48m 48m 48m 48m
Returned to shareholders
Dividends — — 0 0 11 11 0 0 — — — — —
Total returned — — 0 0 11 11 0 0 — — — — —

Source: SEC EDGAR XBRL company facts (US and foreign periodic filings); column headings link to the filing. EBITDA is operating income plus depreciation and amortisation. Free cash flow is cash from operations minus capital spending. Growth is left blank when last year's figure was a loss or under 2% of revenue. Share counts and EPS are restated for stock splits. A dash means the company didn't report the figure.

Financial health

2 of 2 checks passed · September 30, 2026
What it owns · $342m
Short-term assets $109mLonger-term assets $233m
What it owes, and who funded it · $342m
Short-term liabilities $72mLonger-term liabilities $7mShareholders' equity $263m
  • Short-term assets cover short-term liabilities $109m of assets due within a year against $72m of liabilities due within a year.
  • Short-term assets cover long-term liabilities $109m short-term assets against $7m of longer-dated liabilities.
  • More cash than debt Cash or debt not separately reported. Not assessable.
  • Debt below 40% of shareholders' equity Equity or debt not reported. Not assessable.
  • Debt burden no higher than five years ago Five-year comparison not available. Not assessable.
  • A year's operating cash flow covers at least 20% of debt Cash flow or debt not reported. Not assessable.
  • Operating profit covers interest at least five times over Interest not separately reported. Not assessable.

From Mammoth Energy Services, Inc.'s latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Dividends, buybacks and capital spending

Diluted share count
+0.1%
year over year
Sales & admin spending
22.5%
of revenue
Days sales outstanding
179 days
receivables vs revenue

Competitors: side by side with peers

Closest by revenue in oil & gas equipment & services
Last 12 months unless stated TUSK DWSN LSE DTI OMSE NGS Median
Revenue, last 12 months $79m $104m $48m $153m $156m $189m $1.1bn
Revenue growth, last 12 months 146.4% 86.3% −30.0% −5.5% −23.4% 15.4% 4.2%
Revenue growth, 3-year average −39.7% 11.8% — 0.3% — 24.5% 1.9%
Revenue growth, latest quarter 96.7% 81.8% — −3.4% — 24.2% 8.7%
Gross margin −30.3% 22.3% 17.6% — 30.3% — 21.0%
Operating margin −10.6% 4.6% −3.4% 7.2% 22.4% 21.6% 7.2%
Operating margin, 3-year average −94.2% −5.3% — 15.1% — 20.6% 7.2%
Net margin 17.1% 3.5% 2.6% −2.0% 20.7% 10.8% 2.8%
Cash from operations / revenue −24.6% 3.2% −7.3% 6.4% 34.7% 41.8% 10.9%
Free-cash-flow margin −181.1% −4.3% −7.6% −6.3% 34.0% −16.5% 1.2%
Free-cash-flow margin, 3-year average 31.2% −0.3% — −9.7% — −24.3% 4.2%
Stock pay / revenue 0.6% 0.1% — 1.9% — 1.5% 1.1%
Change in share count 0.1% 0.2% 7.6% 1.1% 11.1% 1.2% 1.0%

Median of all 36 companies we cover in oil & gas equipment & services. Shaded: best of the six on that line (lowest for stock pay and share-count growth). 3-year figures average the last three 12-month periods; 3-year growth is compound annual. Source: SEC filings.

Where the revenue comes from

Fiscal year to December 31, 2025
Segments
Line of business Revenue Share YoY
Sand $16.6M 37.4% ▼ 13.1%
Rentals $11M 24.9% ▲ 64.3%
Accommodations $9M 20.2% ▼ 17.5%
Infrastructure $4.1M 9.2% ▲ 176.8%
Drilling Services $3.7M 8.3% ▲ 3.3%
Geography
Region Revenue Share YoY
United States $27.5M 62.1% ▲ 16.8%
Canada $16.7M 37.7% ▼ 24.2%
Other Geographic $76,000 0.2% ▲ 375.0%

From Mammoth Energy Services, Inc.'s 10-K filed March 6, 2026, as tagged in the filing. View filing. Indented rows are part of the line above; their share is of that line. In the bars, the faint bar behind is the year before.

Who owns it

Funds buying and selling
Reported value
$84.7M
Institutions reporting
94
Shares held vs prior quarter
▼ 25.6%
Positions opened / closed
29 / 23

Top buyers and sellers, Q2 2026: 61 institutions bought and 46 sold ; the biggest buyer was Jane Street Group, LLC (+484K shares) and the biggest seller Wexford Capital LP (−10.0M). See which funds bought and sold →

Largest reported holders, June 30, 2026
Manager Value Shares Share of 13F value Shares QoQ
Wexford Capital LP $39.2M 12.1M 46.3% ▼ 45.3%
Adage Capital Partners Gp, L.L.C. $14.9M 4.6M 17.5% 0.0%
Vanguard Capital Management LLC $3.4M 1.1M 4.1% ▲ 29.4%
Peapod Lane Capital LLC $2.6M 808K 3.1% ▲ 34.7%
Dimensional Fund Advisors LP $2.2M 692K 2.7% ▲ 0.8%
Jane Street Group, LLC $1.6M 507K 1.9% ▲ 2117.0%
Citadel Advisors LLC $1.5M 452K 1.7% ▲ 36.5%
Blackrock, Inc. $1.3M 408K 1.6% ▼ 72.0%
Marshall Wace, LLP $1.3M 396K 1.5% New
Johns Hopkins University $1.3M 387K 1.5% New
Bridgeway Capital Management, LLC $1.1M 332K 1.3% 0.0%
Russell Investments Group, Ltd. $1.1M 330K 1.3% ▲ 384.8%

From Form 13F filings with the SEC ( quarterly data sets), as reported by each manager for June 30, 2026 and filed up to 45 days later. 13F reports cover long US-listed positions of managers above $100M only, so this is not Mammoth Energy Services, Inc.'s complete shareholder register. Values are as reported by the filers .

Insider trading activity

Full insider history and chart
Insider purchases History → $10.5M 7 trades by 3 insiders, last 12 months Insider sales History → $0 0 trades by 0 insiders
Net ▲ $10.5M net buying
Insider Date Trade Shares Price Value
Plaumann Mark Lawrence Director September 16, 2026 Buy 5,000 $3.00 $15,000
Wexford Gp Llc Chief Business Officer June 17, 2026 Buy 4,019,574 $2.60 $10.5M
Amron Arthur H Director June 12, 2026 Buy 2,000 $3.28 $6,560
Amron Arthur H Director June 11, 2026 Buy 2,500 $3.22 $8,050
Amron Arthur H Director May 28, 2026 Buy 3,000 $3.25 $9,750
Amron Arthur H Director May 26, 2026 Buy 2,500 $3.24 $8,100
Amron Arthur H Director December 11, 2025 Buy 10,000 $1.89 $18,900

From insiders' Form 4 filings with the SEC. Excludes awards, option exercises and shares withheld for tax. "Pre-set plan" means the filing marks the trade as made under a Rule 10b5-1 plan. See every insider trade since five years ago, on a price chart.

Earnings dates and SEC filings

Results announcements

Next expected around January 25, 2027 estimated from the company's past filing pattern, not announced

  • October 30, 2026
  • August 7, 2026
  • May 11, 2026
  • March 6, 2026
  • October 31, 2025
  • August 8, 2025

Recent SEC filings

Data status

When each part of this page on Mammoth Energy Services, Inc. was last updated.

DataLast updatedSource
Share priceExchange closing prices
Financial statementsSEC 10-K and 10-Q filings
News and updatesCompany releases and SEC 8-K filings
Analyst estimatesAggregated analyst estimates
Valuation and scoresOur models, from the filed figures

How we build and check these figures: methodology and data sources.

Mammoth Energy Services, Inc. in brief

What does Mammoth Energy Services, Inc. do?
Mammoth Energy Services, Inc. is a US-listed company in the oil & gas equipment & services industry. Its financial year ends in December.
What is Mammoth Energy Services, Inc.'s stock ticker?
Mammoth Energy Services, Inc. trades under the ticker TUSK on Nasdaq. This page brings together its financial statements, valuation models, ownership and recent company updates.
What is Mammoth Energy Services, Inc.'s revenue, and how fast is it growing?
Over its most recent trailing twelve months, Mammoth Energy Services, Inc. reported revenue of $78.9M, 146.4% higher than a year earlier, according to its SEC filings.
What is Mammoth Energy Services, Inc.'s free cash flow?
Mammoth Energy Services, Inc.'s free-cash-flow margin is -181.1% of revenue over the trailing twelve months.
Who are Mammoth Energy Services, Inc.'s largest institutional shareholders?
By value reported in 13F filings for June 30, 2026, the largest reported holders are Wexford Capital LP, Adage Capital Partners Gp, L.L.C. and Vanguard Capital Management LLC. 13F reports cover long US-listed positions of managers above $100M, filed up to 45 days after quarter end.
What is Mammoth Energy Services, Inc.'s market cap?
On November 2, 2026, Mammoth Energy Services, Inc.'s market capitalisation was about $150M, with a price-to-earnings ratio of 11.1 and net debt of -$13.1M. Market figures come from third-party market data and may be delayed.
Who are Mammoth Energy Services, Inc.'s competitors?
In our Oil & Gas Equipment & Services peer group, the companies closest to Mammoth Energy Services, Inc. are Dawson Geophysical Co, Leishen Energy Holding Co., Ltd., Drilling Tools International Corp, OMS Energy Technologies Inc. and Natural GAS Services Group Inc. The side-by-side comparison below sets their revenue, margins and growth against Mammoth Energy Services, Inc.'s.
Are insiders buying or selling Mammoth Energy Services, Inc. stock?
Over the last 12 months, Mammoth Energy Services, Inc.'s directors and officers reported 7 open-market purchases and 0 sales on Form 4. The insider trading page charts every trade.
When is Mammoth Energy Services, Inc.'s next earnings date?
Around January 25, 2027, estimated from the spacing of its past results announcements (8-K filings). That is an estimate, not a confirmed date — Mammoth Energy Services, Inc. announces its own schedule.