Montauk Renewables, Inc. SEC EDGAR Filings (CIK 0001826600)

SEC EDGAR filings, ownership reports, and insider transactions for Montauk Renewables, Inc..

Symbol
MNTK on Nasdaq
Industry
Gas & Other Services Combined (Office Of Energy & Transportation)
Business address
5313 Campbells Run Road, Suite 200, Pittsburgh, PA, 15205
State of incorporation
DE
Fiscal year end
31 December
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Montauk Renewables, Inc. has filed 163 SEC EDGAR filings since 14 Oct 2020

Latest Filings

Recent SEC filings for Montauk Renewables, Inc. including 8-K, 4, SCHEDULE 13G/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Jan 2026 31 Dec 2025 001-39919
4 Open 4 document View SEC filing for 4 4 26 Nov 2025 24 Nov 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 24 Nov 2025 005-92420
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 10 Nov 2025 005-92420
3 Open 3 document View SEC filing for 3 FORM 3 10 Nov 2025 03 Nov 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Nov 2025 30 Sep 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Nov 2025 05 Nov 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Aug 2025 07 Aug 2025 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Aug 2025 30 Jun 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Aug 2025 06 Aug 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 May 2025 22 May 2025 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2025 31 Mar 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 May 2025 08 May 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Apr 2025 10 Apr 2025 001-39919
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 08 Apr 2025 001-39919
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 08 Apr 2025 22 May 2025 001-39919
ARS Open ARS document View SEC filing for ARS ARS 08 Apr 2025 31 Dec 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Mar 2025 17 Mar 2025 001-39919
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 14 Mar 2025 31 Dec 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Mar 2025 13 Mar 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Mar 2025 05 Mar 2025 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Feb 2025 14 Feb 2025 001-39919
4 Open 4 document View SEC filing for 4 4 26 Nov 2024 24 Nov 2024
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2024 30 Sep 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Nov 2024 12 Nov 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2024 12 Aug 2024 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2024 30 Jun 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2024 08 Aug 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Jun 2024 05 Jun 2024 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2024 31 Mar 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2024 09 May 2024 001-39919
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 22 Apr 2024 001-39919
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 22 Apr 2024 05 Jun 2024 001-39919
ARS Open ARS document View SEC filing for ARS ARS 22 Apr 2024 31 Dec 2023 001-39919
3 Open 3 document View SEC filing for 3 3 03 Apr 2024 02 Apr 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Apr 2024 02 Apr 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Mar 2024 15 Mar 2024 001-39919
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 14 Mar 2024 31 Dec 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Mar 2024 14 Mar 2024 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Dec 2023 27 Dec 2023 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Nov 2023 24 Nov 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2023 30 Sep 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Nov 2023 09 Nov 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Oct 2023 18 Oct 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Sep 2023 13 Sep 2023 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Sep 2023 15 Sep 2023
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 18 Sep 2023 15 Sep 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Aug 2023 10 Aug 2023 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2023 30 Jun 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Aug 2023 09 Aug 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jun 2023 27 Jun 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Jun 2023 21 Jun 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Jun 2023 05 Jun 2023 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2023 31 Mar 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 May 2023 10 May 2023 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 19 Apr 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 19 Apr 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 19 Apr 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 19 Apr 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Apr 2023 19 Apr 2023
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 25 Apr 2023 001-39919
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 25 Apr 2023 05 Jun 2023 001-39919
ARS Open ARS document View SEC filing for ARS ARS 25 Apr 2023 31 Dec 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Apr 2023 06 Apr 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Mar 2023 28 Mar 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Mar 2023 17 Mar 2023 001-39919
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 16 Mar 2023 31 Dec 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Mar 2023 16 Mar 2023 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Dec 2022 22 Dec 2022 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Dec 2022 01 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Nov 2022 28 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Nov 2022 28 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2022 30 Sep 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Nov 2022 09 Nov 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Aug 2022 11 Aug 2022 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Aug 2022 30 Jun 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Aug 2022 09 Aug 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Jun 2022 06 Jun 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Jun 2022 26 May 2022 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2022 31 Mar 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 May 2022 10 May 2022 001-39919
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 22 Apr 2022 001-39919
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 22 Apr 2022 06 Jun 2022 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Mar 2022 17 Mar 2022 001-39919
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 16 Mar 2022 31 Dec 2021 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Mar 2022 16 Mar 2022 001-39919
3/A Open 3/A document View SEC filing for 3/A FORM 3/A SUBMISSION 11 Feb 2022 21 Jan 2021
3/A Open 3/A document View SEC filing for 3/A FORM 3/A SUBMISSION 11 Feb 2022 21 Jan 2021
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 11 Feb 2022 005-92420
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 11 Feb 2022 005-92420
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 03 Jan 2022 01 Jan 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Dec 2021 21 Dec 2021 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Dec 2021 13 Dec 2021 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Dec 2021 09 Dec 2021 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Dec 2021 01 Dec 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Nov 2021 30 Sep 2021 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Nov 2021 15 Nov 2021 001-39919
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 26 Oct 2021 25 Oct 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Aug 2021 17 Aug 2021 001-39919
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 Aug 2021 30 Jun 2021 001-39919
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Aug 2021 16 Aug 2021 001-39919
10-Q/A Open 10-Q/A document | Open XBRL data View SEC filing for 10-Q/A 10-Q/A 15 Jun 2021 31 Mar 2021 001-39919
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Jun 2021 04 Jun 2021
8-K Open 8-K document View SEC filing for 8-K 8-K 08 Jun 2021 04 Jun 2021 001-39919
8-K Open 8-K document View SEC filing for 8-K 8-K 26 May 2021 25 May 2021 001-39919
10-Q Open 10-Q document View SEC filing for 10-Q 10-Q 17 May 2021 31 Mar 2021 001-39919
8-K Open 8-K document View SEC filing for 8-K 8-K 11 May 2021 10 May 2021 001-39919
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 07 Apr 2021 001-39919
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 07 Apr 2021 25 May 2021 001-39919
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 01 Apr 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Apr 2021 26 Jan 2021
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 01 Apr 2021 28 Jan 2021
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 01 Apr 2021 005-92420
8-K Open 8-K document View SEC filing for 8-K 8-K 01 Apr 2021 01 Apr 2021 001-39919
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 31 Mar 2021 31 Dec 2020 001-39919
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 30 Mar 2021 005-92420
8-K Open 8-K document View SEC filing for 8-K 8-K 24 Feb 2021 22 Feb 2021 001-39919
8-K Open 8-K document View SEC filing for 8-K 8-K 03 Feb 2021 28 Jan 2021 001-39919
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
S-8 Open S-8 document View SEC filing for S-8 S-8 27 Jan 2021 333-252452
424B4 Open 424B4 document View SEC filing for 424B4 424B4 25 Jan 2021 333-251312
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Jan 2021 21 Jan 2021
SEC STAFF LETTER Open SEC STAFF LETTER document View SEC filing for SEC STAFF LETTER 21 Jan 2021
EFFECT Open EFFECT document View SEC filing for EFFECT 21 Jan 2021 333-251312
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 21 Jan 2021 21 Jan 2021
CERT Open CERT document View SEC filing for CERT 21 Jan 2021 001-39919
CORRESP Open CORRESP document View SEC filing for CORRESP 20 Jan 2021
CORRESP Open CORRESP document View SEC filing for CORRESP 20 Jan 2021
8-A12B Open 8-A12B document View SEC filing for 8-A12B 8-A12B 20 Jan 2021 001-39919
S-1/A Open S-1/A document View SEC filing for S-1/A FORM S-1/A 20 Jan 2021 333-251312
S-1/A Open S-1/A document View SEC filing for S-1/A FORM S-1/A (AMENDMENT #4) 15 Jan 2021 333-251312
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Jan 2021
S-1/A Open S-1/A document View SEC filing for S-1/A FORM S-1/A (AMENDMENT #3) 08 Jan 2021 333-251312
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 Jan 2021
S-1/A Open S-1/A document View SEC filing for S-1/A FORM S-1/A (AMENDMENT #2) 31 Dec 2020 333-251312
CORRESP Open CORRESP document View SEC filing for CORRESP 23 Dec 2020
S-1/A Open S-1/A document View SEC filing for S-1/A S-1/A 23 Dec 2020 333-251312
SEC STAFF LETTER Open SEC STAFF LETTER document View SEC filing for SEC STAFF LETTER 21 Dec 2020
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 21 Dec 2020
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Dec 2020
S-1 Open S-1 document View SEC filing for S-1 S-1 11 Dec 2020 333-251312
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 10 Nov 2020
DRS Open DRS document View SEC filing for DRS 14 Oct 2020 377-03666

About this filer

Montauk Renewables, Inc. files with the SEC under CIK 0001826600. This page aggregates EDGAR filings and related ownership activity.

Industry: Gas & Other Services Combined.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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