Montauk Renewables, Inc. (MNTK)
Nasdaq · Gas & Other Services Combined · Transportation, communications and utilities · CIK 1826600 · fiscal year ends in Dec
Closing price $2.21 on 30 Oct 2026; 52-week range $1.12 to $2.95.
Key figures
The last twelve months reported, with the latest price and balance sheet.
- Revenue, last twelve months
- $189.1M
- Revenue growth
- 4.3%
- Net income, last twelve months
- $7.9M
- Earnings per share
- $0.05
- Operating margin
- 0.6%
- Net margin
- 4.2%
- Free cash flow
- -$83.4M
- Return on equity
- 3.0%
- Market value
- $316.6M
- Price to earnings
- 44.2x
- Cash
- $15.8M
- Debt
- $149.6M
- Debt to equity
- 0.57
- Shares outstanding
- 143.2M
Financial statements
Revenue, profit and cash flow by fiscal year, each year linked to its annual report.
| Fiscal year | Year end | Revenue | Operating income | Net income | EPS | Free cash flow | Filing |
|---|---|---|---|---|---|---|---|
| FY2025 | 31 Dec 2025 | $176.4M | $852.0K | $1.7M | $0.01 | -$86.2M | 10-K filed 11 Mar 2026 |
| FY2024 | 31 Dec 2024 | $175.7M | $16.1M | $9.7M | $0.07 | -$18.5M | 10-K filed 14 Mar 2025 |
| FY2023 | 31 Dec 2023 | $174.9M | $23.6M | $14.9M | $0.11 | -$22.0M | 10-K filed 14 Mar 2024 |
| FY2022 | 31 Dec 2022 | $205.6M | $44.6M | $35.2M | $0.25 | $58.8M | 10-K filed 16 Mar 2023 |
| FY2021 | 31 Dec 2021 | $148.1M | $3.3M | -$4.5M | -$0.03 | $32.9M | 10-K filed 16 Mar 2022 |
By quarter
| Quarter | Quarter end | Revenue | Net income | EPS |
|---|---|---|---|---|
| Q2 FY2026 | 30 Jun 2026 | $54.0M | $226.0K | $0.00 |
| Q1 FY2026 | 31 Mar 2026 | $46.4M | $5.0K | $0.00 |
| Q4 FY2025 | 31 Dec 2025 | $43.4M | $2.5M | $0.01 |
| Q3 FY2025 | 30 Sep 2025 | $45.3M | $5.2M | $0.04 |
| Q2 FY2025 | 30 Jun 2025 | $45.1M | -$5.5M | -$0.04 |
| Q1 FY2025 | 31 Mar 2025 | $42.6M | -$464.0K | $0.00 |
| Q4 FY2024 | 31 Dec 2024 | $27.7M | -$8.5M | -$0.05 |
| Q3 FY2024 | 30 Sep 2024 | $65.9M | $17.0M | $0.12 |
Revenue by segment
As the company reports it in the segment note of its annual report.
By business, FY2025
| Segment | Revenue | Share |
|---|---|---|
| Renewable Natural Gas | $158.6M | 89.9% |
| Renewable Electricity Generation | $17.8M | 10.1% |
By product, FY2025
| Segment | Revenue | Share |
|---|---|---|
| Natural Gas Environmental Attributes | $110.1M | 62.4% |
| Natural Gas Commodity | $48.5M | 27.5% |
| Electric Commodity | $10.3M | 5.9% |
| Electric Environmental Attributes | $7.5M | 4.2% |
Company events
The newest 8-K filings of 60 held.
| Filed | Form | Event | Items |
|---|---|---|---|
| 6 Aug 2026 | 8-K | Results | 2.02, 9.01 |
| 5 Aug 2026 | 8-K | Results | 2.02, 9.01 |
| 28 May 2026 | 8-K | Shareholder vote | 5.07 |
| 6 May 2026 | 8-K | Results | 2.02, 9.01 |
| 12 Mar 2026 | 8-K | Results | 2.02, 9.01 |
| 11 Mar 2026 | 8-K | Results | 2.02, 9.01 |
| 7 Jan 2026 | 8-K | Material agreement | 1.01, 9.01 |
| 5 Nov 2025 | 8-K | Results | 2.02, 9.01 |
| 7 Aug 2025 | 8-K | Results | 2.02, 9.01 |
| 6 Aug 2025 | 8-K | Results | 2.02, 9.01 |
| 27 May 2025 | 8-K | Shareholder vote | 5.07 |
| 8 May 2025 | 8-K | Results | 2.02, 9.01 |
Every filing
The newest filings with the SEC of 121 held.
| Filed | Form | Period |
|---|---|---|
| 6 Aug 2026 | 8-K | 6 Aug 2026 |
| 5 Aug 2026 | 10-Q | 30 Jun 2026 |
| 5 Aug 2026 | 8-K | 5 Aug 2026 |
| 28 May 2026 | 8-K | 26 May 2026 |
| 6 May 2026 | 10-Q | 31 Mar 2026 |
| 6 May 2026 | 8-K | 6 May 2026 |
| 10 Apr 2026 | ARS | 31 Dec 2025 |
| 10 Apr 2026 | DEFA14A | – |
| 10 Apr 2026 | DEF 14A | 26 May 2026 |
| 12 Mar 2026 | 8-K | 12 Mar 2026 |
| 11 Mar 2026 | 10-K | 31 Dec 2025 |
| 11 Mar 2026 | 8-K | 11 Mar 2026 |
Insider trades
Form 4 trades by officers, directors and 10% owners, last 12 months.
| Traded | Insider | Type | Shares | Price | Value | Held after | Form 4 |
|---|---|---|---|---|---|---|---|
| 11 May 2026 | Copelyn John A, Director | Purchase | 17,506 | $1.45 | $25.4K | 17,506 | 13 May 2026 |
Large holders
Schedule 13D and 13G filings by holders of more than 5% of the voting shares.
| Filed | Holder | Schedule | Stake | Shares |
|---|---|---|---|---|
| 24 Nov 2025 | Peresec Prime Brokers (Pty) Ltd | 13G amended | – | 35.9K |
| 10 Nov 2025 | Aktiv Investment Management (Pty) Ltd | 13D | 15.7% | 22.3M |
Short interest
Shares sold short and not yet bought back, on each FINRA settlement date.
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 1.5M | -23.38% | 1.91 |
| 30 Sep 2026 | 1.9M | +29.36% | 1.93 |
| 15 Sep 2026 | 1.5M | -2.1% | 2.74 |
| 31 Aug 2026 | 1.5M | +5.2% | 13.84 |
| 14 Aug 2026 | 1.4M | +8.32% | 10.5 |
| 31 Jul 2026 | 1.3M | +3.4% | 5.77 |
| 15 Jul 2026 | 1.3M | -7.1% | 11.58 |
| 30 Jun 2026 | 1.4M | +17.62% | 5.35 |
Funds that hold it
From each fund's latest Form 13F.
104 funds held it at 30 Jun 2026: 50 added and 26 trimmed in the quarter. The largest:
| Fund | Shares | Value | Change in the quarter |
|---|---|---|---|
| BlackRock, Inc. | 4,709,893 | $7.3M | +490,896 |
| Vanguard Capital Management LLC | 2,706,900 | $4.2M | +18,186 |
| Geode Capital Management, LLC | 1,879,292 | $2.9M | +120,014 |
| Baader Bank Aktiengesellschaft | 1,605,000 | $2.5M | 0 |
| State Street Corp. | 1,369,693 | $2.1M | +4,220 |
| Barclays PLC | 953,510 | $1.5M | -85,407 |
| American Century Companies Inc. | 950,442 | $1.5M | -4,026 |
| Charles Schwab Investment Management Inc. | 539,334 | $841.4K | +18,723 |
| Northern Trust Corp. | 536,057 | $836.2K | +30,683 |
| Vanguard Portfolio Management LLC | 469,053 | $731.7K | +80,134 |
Peers
Companies in the same industry.
- Sempra (SRE): revenue $13.6B, market value $56.3B
- UGI Corp. (UGI): revenue $7.3B, market value $8.3B
- Clean Energy Fuels Corp. (CLNE): revenue $442.4M, market value $316.2M