Every Form 4 that Montauk Renewables, Inc. (MNTK) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow MNTK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MNTK filings page.
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, Inc. (MNTK) reported a Form 4 filing for its officer serving as VP Environmental Health & Safety. On 11/24/2025, the officer had 2,748 shares of common stock withheld by the company at a price of $1.67 per share to cover tax obligations related to the vesting of restricted stock units. After this tax withholding transaction, the officer directly owned 39,275 shares of Montauk Renewables common stock. This event reflects routine equity compensation and associated tax settlement rather than an open-market stock sale.