[8-K] Montauk Renewables, Inc. Reports Material Event

Rhea-AI Filing Summary

Montauk Renewables, Inc. (MNTK) filed an 8-K announcing it has furnished a press release with financial results for the quarter ended September 30, 2025. The press release is included as Exhibit 99.1.

Per Item 2.02 and General Instruction B.2, the information in the press release and this item is furnished, not filed, and is not subject to Section 18 liability or automatically incorporated into other filings.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 05, 2025

Montauk Renewables, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware			001-39919	85-3189583
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
5313 Campbells Run Road Suite 200
Pittsburgh, Pennsylvania				15205
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: (412) 747-8700

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		MNTK		The Nasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On November 5, 2025, Montauk Renewables, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this report.

In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit

No. Description

99.1 Press release, dated November 5, 2025 of Montauk Renewables, Inc.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			MONTAUK RENEWABLES, INC.
Date:	November 5, 2025	By:	/s/ Kevin A. Van Asdalan
		Name: Title:	Kevin A. Van Asdalan Chief Financial Officer

FAQ

What did Montauk Renewables (MNTK) announce in this 8-K?

The company furnished a press release with financial results for the quarter ended September 30, 2025, as Exhibit 99.1 under Item 2.02.

Which period do the results cover for MNTK?

The results cover the quarter ended September 30, 2025.

Is the information in the MNTK press release considered filed?

No. Under General Instruction B.2 of Form 8-K, the Item 2.02 information, including Exhibit 99.1, is furnished, not filed.

Where can I find the detailed results for MNTK?

Details are in Exhibit 99.1, the press release dated November 5, 2025.

What is MNTK’s trading symbol and exchange?

MNTK trades on The Nasdaq Stock Market under the symbol MNTK.

Which exhibit numbers were included?

Exhibit 99.1 is the press release; Exhibit 104 is the cover page interactive data file.