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 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.
Montauk Renewables, Inc. reported first quarter 2026 results with total revenues of $46.4 million, up 9.0% from $42.6 million a year earlier, driven mainly by higher environmental attribute revenues from RINs tied to its GreenWave joint venture. Non-GAAP Adjusted EBITDA rose to $10.8 million, a 22.8% year-over-year increase, while RNG production was flat at 1.4 million MMBtu and RINs sold grew 25.5% to 12.4 million. Despite an operating loss of $1.6 million, net income was slightly positive at $5 thousand versus a net loss of $0.5 million in the prior-year quarter, helped by $3.3 million of income from the GreenWave joint venture.
In March 2026, the company entered into a new five-year senior credit facility of up to $200 million with a HASI subsidiary, refinancing existing debt and leaving $45 million available to borrow. Montauk also extended gas rights at its Raeger facility through 2031 and commissioned its Montauk Ag Renewables project in North Carolina, with production and revenue generation expected to begin in May 2026. Full-year 2026 guidance remains for RNG revenues of $175–$190 million, RNG production of 5.8–6.0 million MMBtu, and REG production of 195–207 thousand MWh, while REG revenue guidance is now $33–$37 million based on expected timing of Montauk Ag Renewables revenue ramp.
Montauk Renewables, Inc. calls a virtual annual stockholder meeting on May 26, 2026 to elect two Class III directors and ratify Grant Thornton LLP as independent auditor for 2026. All 143,243,304 outstanding common shares as of April 2, 2026 are entitled to one vote per share.
The Board highlights 2025 operational gains: RNG output at the Pico facility rose about 31.8%, Apex landfill production increased 7.8%, and the GreenWave joint venture delivered 706,000 RINs, generating $1.5 million of income. In 2026, Montauk began commissioning its Turkey, North Carolina project, targeting first-phase capacity to process feedstock from roughly 400,000–450,000 hog spaces, or about 35,000 tons of waste annually, with an expected first-phase capital investment of approximately $200 million and production and revenue beginning in April 2026.
The company also completed a $200 million senior credit facility with HASI in March 2026, used to refinance existing debt, fund the Turkey project’s first phase and support future growth, and secured a five-year gas rights extension at its Raeger RNG facility. Montauk remains a “controlled company” under Nasdaq rules, with parties to a consortium agreement holding about 52.3% of the common stock, and it currently relies on controlled company exemptions for certain board independence requirements. As an emerging growth company, Montauk uses scaled executive compensation disclosure and does not yet hold advisory “say-on-pay” votes; CEO Sean McClain received total 2025 compensation of $671,702, while other named executives received primarily salary, cash bonuses and 401(k) contributions, with previously granted stock options continuing to vest.