MNTK · Montauk Renewables, Inc.

$1.90 +0.03 (+1.60%) At close · Jul 27

Market Cap

$270.45M

142.34M

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

Net shares bought

0.01%

Net buy value

+$25,383

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-05-20	Van Asdalan Kevin A	CFO and Treasurer	Award↑ Filing footnotes — Common Stock (Direct) Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock. Includes 302,982 RSUs.	Common Stock	302,982	—	—	497,493
2026-05-20	Ciroli John	See Remarks	Award↑ Filing footnotes — Common Stock (Direct) Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock. Includes 302,982 RSUs.	Common Stock	302,982	—	—	470,772
2026-05-20	Shaw James A	Vice President of Operations	Award↑ Filing footnotes — Common Stock (Direct) Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock. Includes 282,842 RSUs.	Common Stock	282,842	—	—	477,387
2026-05-20	McClain Sean F	Director, President and CEO	Award↑ Filing footnotes — Common Stock (Direct) Represents Restricted Stock Units ("RSUs"). The grant of RSUs shall vest ratably on the third, fourth and fifth anniversary of date of grant. Each RSU is settled solely for one share of Common Stock. Includes 383,183 RSUs.	Common Stock	383,183	—	—	1,141,172
2026-05-11	Copelyn John A	Director	Buy↑ Filing footnotes — Common Stock (Indirect) The underlying transaction was denominated in South African rand ("ZAR"). The amount reported in United States Dollars ("USD") has been converted from ZAR using the South African Reserve Bank exchange rate in effect on the transaction date of 16.4093 ZAR to 1 USD. The per share purchase price was ZAR 23.86. These shares of common stock, par value $0.01 ("Common Stock"), of Montauk Renewables, Inc. (the "Issuer") are owned directly by Rivetprops 47 (PTY) Ltd. ("Rivetprops") and indirectly by Mr. Copelyn. Mr. Copelyn is a member of the board of directors of Rivetprops and is deemed to have voting and investment power with respect to the shares of Common Stock held by Rivetprops.	Common Stock (I)	17,506	$1.45	$25,384	17,506
2025-11-24	Frank Sharon R	VP Environ Health & Safety	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withhholding obligations in connection with the vesting of restricted stock units.	Common Stock	2,748	$1.67	$4,589	39,275
2024-11-24	Frank Sharon R	VP Environ Health & Safety	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withhholding obligations in connection with the vesting of restricted stock units.	Common Stock	2,748	$4.46	$12,256	42,023
2023-11-24	Frank Sharon R	VP Environ Health & Safety	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	2,658	$9.09	$24,161	44,771
2023-09-15	Barsch Michael	See Remarks	Award↑	Employee Stock Option (right to buy)	75,000	—	—	75,000
2023-09-15	Barsch Michael	See Remarks	Award↑	Employee Stock Option (right to buy)	75,000	—	—	75,000
2023-09-15	Barsch Michael	See Remarks	Award↑	Employee Stock Option (right to buy)	75,000	—	—	75,000
2023-09-15	Barsch Michael	See Remarks	Other↑	No Securities Owned	0	—	—	0
2023-04-19	Frank Sharon R	VP Environ Health & Safety	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	McClain Sean F	Director, President and CEO	Award↑	Employee Stock Option	200,000	—	—	200,000
2023-04-19	Frank Sharon R	VP Environ Health & Safety	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Employee Stock Option	166,666	—	—	166,666
2023-04-19	McClain Sean F	Director, President and CEO	Award↑	Employee Stock Option	200,000	—	—	200,000
2023-04-19	Frank Sharon R	VP Environ Health & Safety	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	McClain Sean F	Director, President and CEO	Award↑	Employee Stock Option	200,000	—	—	200,000
2023-04-19	Ciroli John	See Remarks	Award↑	Employee Stock Option	133,333	—	—	133,333
2023-04-19	Shaw James A	Vice President of Operations	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	Shaw James A	Vice President of Operations	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	Ciroli John	See Remarks	Award↑	Employee Stock Option	133,334	—	—	133,334
2023-04-19	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Employee Stock Option	166,666	—	—	166,666
2023-04-19	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Employee Stock Option	166,667	—	—	166,667
2023-04-19	Shaw James A	Vice President of Operations	Award↑	Employee Stock Option	100,000	—	—	100,000
2023-04-19	Ciroli John	See Remarks	Award↑	Employee Stock Option	133,333	—	—	133,333
2022-12-01	Frank Sharon R	VP Environ Health & Safety	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	2,748	$10.01	$27,507	47,429
2022-11-28	Hill Scott E	VP of Business Development	Sell↓ Filing footnotes — Common Stock (Direct) The price reported in Column 4 is a weighted average price. The Shares were sold in multiple transactions at prices ranging from $11.62 to $12.60 per share, at a weighted average price of $12.02 per share. The Reporting Person undertakes to provide to any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in the footnotes of this Form 4.	Common Stock	101,797	$12.02	$1,223,600	622,810
2022-11-28	McClain Sean F	Director, President and CEO	Sell↓ Filing footnotes — Common Stock (Direct) The price reported in Column 4 is a weighted average price. The Shares were sold in multiple transactions at prices ranging from $12.64 to $12.78 per share, at a weighted average price of $12.68 per share.	Common Stock	2,250	$12.68	$28,530	757,989
2022-11-28	McClain Sean F	Director, President and CEO	Sell↓ Filing footnotes — Common Stock (Direct) The price reported in Column 4 is a weighted average price. The Shares were sold in multiple transactions at prices ranging from $11.62 to $12.60 per share, at a weighted average price of $12.07 per share. The Reporting Person undertakes to provide to any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in the footnotes of this Form 4.	Common Stock	57,750	$12.07	$697,043	760,239
2022-11-28	Hill Scott E	VP of Business Development	Sell↓ Filing footnotes — Common Stock (Direct) The price reported in Column 4 is a weighted average price. The Shares were sold in multiple transactions at prices ranging from $12.64 to $12.78 per share, at a weighted average price of $12.68 per share.	Common Stock	2,350	$12.68	$29,798	620,460
2022-01-28	Ciroli John	See Remarks	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	167,790
2022-01-28	Frank Sharon R	VP Environ Health & Safety	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	50,177
2022-01-28	Shaw James A	Vice President of Operations	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	194,545
2022-01-28	Van Asdalan Kevin A	CFO and Treasurer	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	194,511
2022-01-28	McClain Sean F	Director, President and CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	817,989
2022-01-28	Hill Scott E	VP of Business Development	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.	Common Stock	87	$10.01	$871	724,607
2022-01-01	Cunningham Jennifer E	Director	Other↑	No Securities Owned	0	—	—	0
2021-12-01	Frank Sharon R	VP Environ Health & Safety	Award↑	Common Stock	50,000	—	—	50,264
2021-01-28	Shaw James A	Vice President of Operations	Award↑	Common Stock	354,161	—	—	354,425
2021-01-28	Shaw James A	Vice President of Operations	Tax↓	Common Stock	159,793	$11.38	$1,818,444	194,632
2021-01-28	Ciroli John	See Remarks	Award↑	Employee Stock Option (right to buy)	149,508	—	—	149,508
2021-01-28	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Employee Stock Option (right to buy)	159,827	—	—	159,827
2021-01-28	Ciroli John	See Remarks	Award↑	Common Stock	317,121	—	—	317,385
2021-01-28	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Common Stock	354,161	—	—	354,425
2021-01-28	Ciroli John	See Remarks	Award↑	Common Stock	264	—	—	264
2021-01-28	Shaw James A	Vice President of Operations	Award↑	Employee Stock Option (right to buy)	159,793	—	—	159,793
2021-01-28	Shaw James A	Vice President of Operations	Award↑	Common Stock	264	—	—	264
2021-01-28	Van Asdalan Kevin A	CFO and Treasurer	Award↑	Common Stock	264	—	—	264

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 63 transactions

Key facts CIK 1826600 CUSIP 61218C103 13F (30d) 14 filings 14 filers Visit website Investor relations