# Montauk Renewables, Inc.: overview MNTK · Nasdaq · CIK 1826600 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31 Pages: [Overview](/companies/mntk.md) · [Financials](/companies/mntk/financials.md) · [Filings](/companies/mntk/filings.md) · [Insiders](/companies/mntk/insiders.md) Latest reported revenue: [$54.0m](/filings/0001193125-26-335335.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 5, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001193125-26-335335). ## Last eight quarters | Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) | | --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | | Revenue | $m | [65.9](/filings/0001193125-25-267126.md) | [27.7 d](/filings/0001193125-26-102364.md) | [42.6](/filings/0001193125-26-209250.md) | [45.1](/filings/0001193125-26-335335.md) | [45.3](/filings/0001193125-25-267126.md) | [43.4 d](/filings/0001193125-26-102364.md) | [46.4](/filings/0001193125-26-209250.md) | [54.0](/filings/0001193125-26-335335.md) | | Gross margin | % | [43.8%](/filings/0000950170-24-125582.md) | not reported | not reported | not reported | not reported | not reported | not reported | not reported | | Operating margin | % | [34.4%](/filings/0001193125-25-267126.md) | [(35.5%) d](/filings/0001193125-26-102364.md) | [1.0%](/filings/0001193125-26-209250.md) | [(5.2%)](/filings/0001193125-26-335335.md) | [9.8%](/filings/0001193125-25-267126.md) | [(3.8%) d](/filings/0001193125-26-102364.md) | [(3.4%)](/filings/0001193125-26-209250.md) | [(0.1%)](/filings/0001193125-26-335335.md) | | Net margin | % | [25.9%](/filings/0001193125-25-267126.md) | [(30.5%) d](/filings/0001193125-26-102364.md) | [(1.1%)](/filings/0001193125-26-209250.md) | [(12.2%)](/filings/0001193125-26-335335.md) | [11.5%](/filings/0001193125-25-267126.md) | [5.7% d](/filings/0001193125-26-102364.md) | [0.0%](/filings/0001193125-26-209250.md) | [0.4%](/filings/0001193125-26-335335.md) | | Diluted EPS | $ per share | [0.12](/filings/0001193125-25-267126.md) | not reported | [0.00](/filings/0001193125-26-209250.md) | [(0.04)](/filings/0001193125-26-335335.md) | [0.04](/filings/0001193125-25-267126.md) | not reported | [0.00](/filings/0001193125-26-209250.md) | [0.00](/filings/0001193125-26-335335.md) | | Free cash flow | $m | [16.0 d](/filings/0001193125-25-267126.md) | [(8.3) d](/filings/0001193125-26-102364.md) | [(2.5)](/filings/0001193125-26-209250.md) | [(25.5) d](/filings/0001193125-26-335335.md) | [(17.2) d](/filings/0001193125-25-267126.md) | [(41.1) d](/filings/0001193125-26-102364.md) | [(15.0)](/filings/0001193125-26-209250.md) | [(10.1) d](/filings/0001193125-26-335335.md) | - Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure. ## Last five fiscal years | Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) | | --- | --- | ---: | ---: | ---: | ---: | ---: | | Revenue | $m | [148](/filings/0000950170-24-031587.md) | [213](/filings/0000950170-25-039495.md) | [175](/filings/0001193125-26-102364.md) | [176](/filings/0001193125-26-102364.md) | [176](/filings/0001193125-26-102364.md) | | Gross margin | % | [17.2%](/filings/0000950170-24-031587.md) | [30.8%](/filings/0000950170-24-031587.md) | [25.9%](/filings/0000950170-24-031587.md) | not reported | not reported | | Operating margin | % | [2.3%](/filings/0000950170-24-031587.md) | [20.9%](/filings/0000950170-25-039495.md) | [13.5%](/filings/0001193125-26-102364.md) | [9.2%](/filings/0001193125-26-102364.md) | [0.5%](/filings/0001193125-26-102364.md) | | Net margin | % | [(3.1%)](/filings/0000950170-24-031587.md) | [16.5%](/filings/0000950170-25-039495.md) | [8.5%](/filings/0001193125-26-102364.md) | [5.5%](/filings/0001193125-26-102364.md) | [1.0%](/filings/0001193125-26-102364.md) | | Diluted EPS | $ per share | [(0.03)](/filings/0000950170-24-031587.md) | [0.25](/filings/0000950170-25-039495.md) | [0.11](/filings/0001193125-26-102364.md) | [0.07](/filings/0001193125-26-102364.md) | [0.01](/filings/0001193125-26-102364.md) | | Free cash flow | $m | [32.9](/filings/0000950170-24-031587.md) | [58.8](/filings/0000950170-25-039495.md) | [(22.0)](/filings/0001193125-26-102364.md) | [(18.5)](/filings/0001193125-26-102364.md) | [(86.2)](/filings/0001193125-26-102364.md) | - Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing. ## Insider purchases and sales The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/mntk/insiders.md) None in coverage. ## Funds that report holding it From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md) | Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before | | --- | --- | ---: | ---: | --- | --- | | [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $7.3m | 4,709,893 | | Added +490,896 | | [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $4.2m | 2,706,900 | | Added +18,186 | | [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $2.9m | 1,879,292 | | Added +120,014 | | [Baader Bank Aktiengesellschaft](/funds/1542629.md) | 2026-06-30 | $2.5m | 1,605,000 | | Unchanged | | [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $2.1m | 1,369,693 | | Added +4,220 | | [BARCLAYS PLC](/funds/312069.md) | 2026-06-30 | $1.5m | 953,510 | | Reduced −85,407 | | [AMERICAN CENTURY COMPANIES INC](/funds/748054.md) | 2026-06-30 | $1.5m | 950,442 | | Reduced −4,026 | | [CHARLES SCHWAB INVESTMENT MANAGEMENT INC](/funds/884546.md) | 2026-06-30 | $841.4k | 539,334 | | Added +18,723 | | [NORTHERN TRUST CORP](/funds/73124.md) | 2026-06-30 | $836.2k | 536,057 | | Added +30,683 | | [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $731.7k | 469,053 | | Added +80,134 | ## Recent filings [All 180 filings](/companies/mntk/filings.md) | Filed | Accepted | Form | What it is | Accession | | --- | --- | --- | --- | --- | | 2026-08-06 | 08:49 ET | [8-K](/filings/0001193125-26-336927.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-336927 | | 2026-08-05 | 16:45 ET | [10-Q](/filings/0001193125-26-335335.md) | Quarterly report, period 2026-06-30 | 0001193125-26-335335 | | 2026-08-05 | 16:35 ET | [8-K](/filings/0001193125-26-335293.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-335293 | | 2026-05-28 | 09:59 ET | [8-K](/filings/0001193125-26-243221.md) | 5.07 Shareholder vote results | 0001193125-26-243221 | | 2026-05-06 | 16:50 ET | [10-Q](/filings/0001193125-26-209250.md) | Quarterly report, period 2026-03-31 | 0001193125-26-209250 | | 2026-05-06 | 16:40 ET | [8-K](/filings/0001193125-26-209194.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-209194 | | 2026-04-10 | 07:48 ET | [DEF 14A](/filings/0001193125-26-150358.md) | Proxy statement, period 2026-05-26 | 0001193125-26-150358 | | 2026-03-12 | 08:50 ET | [8-K](/filings/0001193125-26-103173.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-103173 | | 2026-03-11 | 16:56 ET | [10-K](/filings/0001193125-26-102364.md) | Annual report, period 2025-12-31 | 0001193125-26-102364 | | 2026-03-11 | 16:50 ET | [8-K](/filings/0001193125-26-102342.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-102342 | ## Latest annual report [Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001193125-26-102364.md), filed Mar 11, 2026. ## Forecast league Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/9611bc29-726f-4a7f-891d-6c58b8501449) ## About the filer - CIK: 1826600 - Tickers: MNTK - Exchange: Nasdaq - SIC code: 4932 Gas & Other Services Combined - State of incorporation: DE - Filer category:
Emerging growth company Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:48 ET. No prices; not investment advice.