MNTK SEC Filings: 8-K, 10-Q, S-3 & 424B

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 5, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 6, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Mar 11, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 5, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 6, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 8, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Montauk Renewables Reports Unaudited Financial Results for the Six Months Ended June 30, 2026

Aug 6, 2026

8-K

Montauk Renewables Reports Second Quarter 2026 Financial Results

Aug 5, 2026

8-K

Montauk Renewables, Inc. Announces Results of 2026 Annual Meeting of Stockholders

May 28, 2026

8-K

Montauk Renewables Announces First Quarter 2026 Financial Results

May 6, 2026

8-K

Montauk Renewables, Inc. Reports Audited Consolidated Results for Fiscal Year 2025

Mar 12, 2026

8-K

Montauk Renewables Announces Full Year 2025 Financial Results

Mar 11, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B4

3,047,015 Shares-

Jan 25, 2021

Registrations

TYPE

HEADLINE

FILED AT

S-8

Common Stock

Jan 27, 2021

8-A12B

Common Stock, par value $0.01 per share

Jan 20, 2021

S-1/A

3,902,941 Shares- EFFECTIVE

Jan 20, 2021

S-1/A

3,902,941 Shares- EFFECTIVE

Jan 15, 2021

S-1/A

Common Stock, par value $0.01 per share, 1,000 shares authorized, 10 shares issued and outstanding- EFFECTIVE

Jan 8, 2021

S-1/A

Registration- EFFECTIVE

Dec 31, 2020

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 10, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 10, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 8, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 8, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 22, 2024

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 22, 2024

Ownerships

TYPE

HEADLINE

FILED AT

Shaw James A (Reporting)

May 22, 2026

McClain Sean F (Reporting)

May 22, 2026

Van Asdalan Kevin A (Reporting)

May 22, 2026

Ciroli John (Reporting)

May 22, 2026

Copelyn John A (Reporting)

May 13, 2026

Frank Sharon R (Reporting)

Nov 26, 2025

Other

TYPE

HEADLINE

FILED AT

EFFECT

Form EFFECT - Notice of Effectiveness

Jan 22, 2021

CORRESP

Form CORRESP - Correspondence

Jan 20, 2021

CORRESP

Form CORRESP - Correspondence

Jan 20, 2021

CORRESP

Form CORRESP - Correspondence

Jan 8, 2021

LETTER

Form UPLOAD - SEC-generated letter

Jan 4, 2021

CORRESP

Form CORRESP - Correspondence

Dec 23, 2020

Montauk Renewables, Inc. MNTK · SEC Filings