Welcome to our dedicated page for Montauk Renewables SEC filings (Ticker: MNTK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Montauk Renewables, Inc. filings document formal disclosures for a renewable energy company that recovers and converts biogas into renewable natural gas and operates renewable electricity generation activities. Recent 8-K filings furnish operating results, RNG production, RIN sales, renewable fuel disclosures, and headline earnings per share reports prepared for Johannesburg Stock Exchange reporting requirements.
The filing record also covers material credit agreements involving subsidiary Montauk Energy Holdings, common stock registered on The Nasdaq Capital Market, and annual proxy matters. Proxy disclosures address board and stockholder meeting items, executive compensation, governance practices, facility progress, joint venture activity, and business risks tied to RNG, environmental attributes and regulated renewable fuel markets.
Montauk Renewables, Inc. reported unaudited consolidated results for the six months ended 30 June 2026 in a headline earnings per share report filed with the Johannesburg Stock Exchange. Revenue was 100 447 ($‘000), up 14% from the comparable 2025 period, and EBITDA increased to 21 066 ($‘000), an 85% rise.
Headline earnings improved to 1 084 ($‘000) from a loss of (4 008) ($‘000), with headline earnings per common share at 0.01 versus a loss of (0.03). Net income attributable to common shareholders was 231 ($‘000), while net asset value per common share increased to 1.85 from 1.78. The directors resolved not to declare a final cash dividend and noted that a Form 10‑Q and an earnings press release covering the period ended 30 June 2026 have been filed with the SEC.
Montauk Renewables, Inc. reported modest profitability for the quarter ended June 30, 2026. Total operating revenues were $54,020 for the quarter, up from $45,127 a year earlier, and $100,447 for the first six months of 2026 versus $87,730 in 2025.
Quarterly net income was $226, compared with a net loss of $5,487 in the prior-year quarter; year-to-date net income was $231 versus a loss of $5,951. RNG activities generated the majority of revenue, with six‑month RNG revenue of $91,654 and Renewable Electricity Generation revenue of $8,793.
Operating cash flow for the first six months increased to $30,445 from $17,346, while capital expenditures rose to $55,560, reflecting significant project investment. Long‑term debt (net of issuance costs) increased to $149,635 following a new $200,000 senior credit facility at a 10.25% interest rate, used to refinance prior borrowings.
Montauk Renewables reported second-quarter 2026 total operating revenues of $54.0 million, up 19.7% year-over-year, driven mainly by higher environmental attribute revenues from RINs, including distributions from the GreenWave joint venture. Net income was $0.2 million versus a $5.5 million loss a year ago, and non-GAAP Adjusted EBITDA increased to $12.3 million, a 144.5% rise. Operating loss narrowed to $0.1 million as RNG facility operating and maintenance and general and administrative expenses declined, partially offset by an $8.3 million cost related to GreenWave RINs and proprietary dispensing pathways and a $0.7 million impairment.
RNG production reached 1.5 million MMBtu (up 3%), while Renewable Electricity output was 44 thousand MWh. The Turkey, North Carolina facility began power sales in July 2026, and long-term feedstock agreements now cover at least 350 thousand hog spaces, with over 250 thousand currently collectable. For the first half of 2026, net cash provided by operating activities was $30.445 million against capital expenditures of $55.560 million; long-term debt was $149.635 million at June 30, 2026. Full-year 2026 guidance reiterates RNG revenues of $175–$190 million and RNG production of 5.8–6.0 million MMBtu, while REG revenue and volume expectations are reduced to $23–$26 million and 185–195 thousand MWh due to later-than-expected Montauk Ag Renewables ramp-up.
Montauk Renewables, Inc. reported the results of its 2026 Annual Meeting of Stockholders. Two director nominees, Jennifer Cunningham and Sean McClain, were elected to the Board for terms expiring at the 2029 annual meeting. Cunningham received 95,930,621 votes for and 1,276,666 withheld, while McClain received 91,449,396 votes for and 5,757,891 withheld, with 4,327,793 broker non-votes for each nominee.
Stockholders also approved the ratification of Grant Thornton LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026, with 96,949,187 votes for, 4,570,221 against, 15,672 abstentions, and no broker non-votes.
Shaw James A reported acquisition or exercise transactions in this Form 4 filing.
Montauk Renewables, Inc.’s Chief Operating Officer James A. Shaw received a grant of 282,842 Restricted Stock Units (RSUs) settled in common stock. The RSUs vest in equal portions on the third, fourth, and fifth anniversaries of the grant date, encouraging longer-term retention. After this grant, Shaw holds 477,387 shares of common stock, including these RSUs, directly.
McClain Sean F reported acquisition or exercise transactions in this Form 4 filing.
Montauk Renewables, Inc. reported that President & CEO Sean F. McClain received a grant of 383,183 Restricted Stock Units (RSUs) of common stock on May 20, 2026. The award is compensation-related, with no cash paid by McClain for these shares.
The RSUs will vest in equal portions on the third, fourth, and fifth anniversaries of the grant date, encouraging longer-term alignment with the company’s performance. Following this grant, McClain directly holds 1,141,172 shares of common stock, including the 383,183 RSUs, each of which will settle into one share upon vesting.
Van Asdalan Kevin A reported acquisition or exercise transactions in this Form 4 filing.
Montauk Renewables, Inc. reported that Chief Financial Officer Kevin A. Van Asdalan received an award of 302,982 shares of Common Stock in the form of Restricted Stock Units (RSUs) on May 20, 2026. The RSUs vest in three equal installments on the third, fourth, and fifth anniversaries of the grant date, and each RSU will be settled for one share of Common Stock.
After this grant, Van Asdalan directly holds 497,493 shares of Common Stock, including the 302,982 RSUs. The transaction reflects a compensation-related equity award rather than an open-market purchase.
Ciroli John reported acquisition or exercise transactions in this Form 4 filing.
Montauk Renewables, Inc. Chief Legal Officer John Ciroli received an equity award of 302,982 shares of Common Stock in the form of Restricted Stock Units (RSUs) on May 20, 2026. The RSUs vest ratably on the third, fourth and fifth anniversaries of the grant date, and each RSU will settle into one share of common stock. Following this award, Ciroli now holds 470,772 shares of Common Stock, including 302,982 RSUs.
Montauk Renewables director-related entity buys shares on the open market. An entity associated with director John A. Copelyn, Rivetprops 47 (PTY) Ltd., purchased 17,506 shares of Montauk Renewables common stock in an open-market transaction at $1.45 per share. Following this transaction, Rivetprops holds 17,506 shares indirectly for which Mr. Copelyn is deemed to have voting and investment power. The trade was denominated in South African rand, with a per-share price of ZAR 23.86 converted using a South African Reserve Bank exchange rate.
Montauk Renewables reported first‑quarter 2026 revenue of $46,428, up from $42,603 a year earlier, driven mainly by Renewable Natural Gas sales and associated environmental attributes. Despite higher operating expenses and $443 of asset impairments, the company was roughly break-even with net income of $5.
Cash from operating activities increased to $15,846, supporting heavy capital spending of $30,867 on growth projects, particularly Renewable Electricity Generation. Montauk refinanced its borrowings with a new senior credit facility of up to $200,000 at a 10.25% rate, leaving $155,000 outstanding and lifting long‑term debt to $149,494.