Montauk Renewables, Inc.
MNTKNasdaqUtilities · Gas & Other Services Combined · DE · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annual| FY25 | FY24 | FY23 | FY22 | FY21 | FY20 | |
|---|---|---|---|---|---|---|
| Revenue | $176.4M | $175.7M | $174.9M | $213.4M | $148.1M | $100.2M |
| Operating income | $852,000 | $16.1M | $23.6M | −$1.7M | −$12.2M | $3.6M |
| Net income | $1.7M | $9.7M | $14.9M | −$1.1M | −$14.3M | $4.6M |
| Total assets | $435.5M | $349.0M | $350.2M | $332.3M | $286.5M | $253.4M |
| Total liabilities | $172.3M | $91.6M | $100.0M | $105.2M | $104.2M | $93.7M |
| Equity | $263.1M | $257.4M | $250.2M | $227.1M | $182.3M | $159.6M |
| EPS (diluted) | $0.01 | $0.07 | $0.11 | $0.25 | $-0.03 | — |
| Shares out. | 142.4M | 143.7M | 143.7M | 143.6M | 141.0M | 141.0M |
Reported figures from the company's SEC filings (XBRL). Blank where a line item isn't cleanly tagged — never estimated.
Key ratios
from filings · FY2025- Operating margin
- 0.5%
- Net margin
- 1.0%
- Return on equity
- 0.7%
- Return on assets
- 0.4%
- Return on capital (ROCE)
- 0.2%
- Liabilities / assets
- 39.6%
- Debt / equity
- 0.65×
- Book value / share
- $1.85
- Revenue growth (YoY)
- 0.4%
- Net income growth (YoY)
- −82.0%
Computed from the company's own SEC figures — no market price, so these are facts, not a valuation. Book value per share is reported equity ÷ shares; it is not the stock price.
Financial health
forensic scores · FY2025- Altman Z″ (distress)
- 2.10grey zone
- Accruals / assets
- −6.6%clean
- Piotroski F-Score
- 4/9mixed
Altman Z″is a textbook bankruptcy-distress score from book values only (>2.6 safe · 1.1–2.6 grey · <1.1 distress). Accruals = (net income − operating cash flow) ÷ assets; persistently high accruals are an earnings-quality red flag. Beneish M-Scoreis an eight-ratio screen comparing this year with last (M > −1.78 = elevated manipulation-risk screen, not proof). Piotroski F-Scorecounts how many of nine fundamental-health checks pass (shown as passed / applicable; we use operating margin and total liabilities as documented proxies where the exact input isn't XBRL-tagged). Computed from SEC filings — descriptive factors, not advice or a forecast.
Quality score
EDS ScoreOur own multi-factor score from free SEC data — profitability, growth, financial strength, earnings quality, and event/ownership catalysts. No market price and no licensed model: each axis is the share of source-backed checks it passes. Descriptive factors, not advice or a forecast.
Signs
● 1 warning● 5 good- Altman Z″ in the grey zone
- Operating margin is positive
- Revenue is growing year-over-year
- Conservative leverage (liabilities < 50% of assets)
- Positive operating cash flow
- Clean earnings (low accruals)
Derived from the company's own SEC figures (fundamentals, forensic scores, filing discipline) — descriptive factors, not advice or a forecast.
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- Peresec Prime Brokers (Pty) LtdPassive (13G)Nov 24, 2025
- Aktiv Investment Management (Pty) LtdActivist (13D)Nov 10, 2025
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Insider transactions
SEC Form 4 · most recent| Insider | Date | Type | Shares | Price |
|---|---|---|---|---|
| Mcclain Sean FOfficer — President & CEO | May 20, 2026 | Grant | 383,183 | $0.00 |
| Van Asdalan Kevin AOfficer — Chief Financial Officer | May 20, 2026 | Grant | 302,982 | $0.00 |
| Ciroli JohnOfficer — Chief Legal Officer | May 20, 2026 | Grant | 302,982 | $0.00 |
| Copelyn John ADirector | May 11, 2026 | Buy | 17,506 | $1.45 |
Headline trade per Form 4 (officers, directors, 10%+ owners). Buy/sell read from the filing's structured data — blank where a field isn't cleanly tagged.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 1.0M | 3.3 | -5.0% |
| Apr 30, 2026 | 1.1M | 3.7 | -9.0% |
| Apr 15, 2026 | 1.2M | 5.1 | -44.8% |
| Mar 31, 2026 | 2.1M | 4.9 | +18.8% |
| Mar 13, 2026 | 1.8M | 5.8 | +21.1% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Material events
SEC Form 8-K · most recent- Shareholder voteMay 28, 2026
- Results of operationsMay 6, 2026
- Results of operationsMar 12, 2026
- Results of operationsMar 11, 2026
- Entered a material agreementJan 7, 2026
- Results of operationsNov 5, 2025
- Results of operationsAug 7, 2025
- Results of operationsAug 6, 2025
Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.
Recent SEC filings
All filings ↗Event-driven situations (2)
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