Montauk Renewables (MNTK) holders back board nominees and ratify Grant Thornton as 2026 auditor

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8-K Event Classification

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What did Montauk Renewables (MNTK) stockholders decide at the 2026 Annual Meeting?

How many votes did Montauk Renewables (MNTK) director Jennifer Cunningham receive?

How many votes did Montauk Renewables (MNTK) director Sean McClain receive?

Was Grant Thornton LLP ratified as Montauk Renewables (MNTK) auditor for 2026?

How many broker non-votes were recorded on Montauk Renewables (MNTK) director elections?

What is the term length for the directors elected at Montauk Renewables’ 2026 meeting?

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Form Type

8-K

Montauk Renewables, Inc. reported the results of its 2026 Annual Meeting of Stockholders. Two director nominees, Jennifer Cunningham and Sean McClain, were elected to the Board for terms expiring at the 2029 annual meeting. Cunningham received 95,930,621 votes for and 1,276,666 withheld, while McClain received 91,449,396 votes for and 5,757,891 withheld, with 4,327,793 broker non-votes for each nominee.

Stockholders also approved the ratification of Grant Thornton LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026, with 96,949,187 votes for, 4,570,221 against, 15,672 abstentions, and no broker non-votes.

Item 5.07 — Submission of Matters to a Vote of Security Holders

1 item

Item 5.07 Submission of Matters to a Vote of Security Holders Governance

Results of a shareholder vote on proposals at an annual or special meeting.

Votes for Jennifer Cunningham: 95,930,621 votes Votes withheld for Jennifer Cunningham: 1,276,666 votes Votes for Sean McClain: 91,449,396 votes +5 more

8 metrics

Votes for Jennifer Cunningham 95,930,621 votes Director election at 2026 Annual Meeting

Votes withheld for Jennifer Cunningham 1,276,666 votes Director election at 2026 Annual Meeting

Votes for Sean McClain 91,449,396 votes Director election at 2026 Annual Meeting

Votes withheld for Sean McClain 5,757,891 votes Director election at 2026 Annual Meeting

Broker non-votes on director elections 4,327,793 votes Per director nominee at 2026 Annual Meeting

Votes for auditor ratification 96,949,187 votes Grant Thornton LLP ratified for fiscal year ending December 31, 2026

Votes against auditor ratification 4,570,221 votes Grant Thornton LLP ratified for fiscal year ending December 31, 2026

Abstentions on auditor ratification 15,672 votes Grant Thornton LLP ratified for fiscal year ending December 31, 2026

Annual Meeting of Stockholders, broker non-votes, independent registered public accounting firm, ratify the appointment, +1 more

5 terms

Annual Meeting of Stockholders financial

"held its 2026 Annual Meeting of Stockholders (the “Annual Meeting”)."

broker non-votes financial

"Jennifer Cunningham | | 95,930,621 | | 1,276,666 | | 4,327,793"

Broker non-votes occur when a brokerage firm is unable to vote on a shareholder’s behalf during a company election or decision because the shareholder has not given specific voting instructions, and the broker is not allowed or chooses not to vote on certain matters. They are important because they can affect the outcome of votes, especially when the results are close, by effectively reducing the total number of votes cast.

independent registered public accounting firm financial

"the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026"

An independent registered public accounting firm is an outside accounting company officially registered with the government regulator to examine and report on a public company's financial records and controls. Investors treat its reports like an impartial inspector’s certificate — they add credibility to financial statements, help spot errors or misleading claims, and reduce the risk that shareholders are relying on unchecked or biased numbers.

ratify the appointment financial

"The proposal to ratify the appointment of Grant Thornton LLP"

Board of Directors financial

"The two director nominees nominated by the Company’s Board of Directors"

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

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Understanding 8-K Material Events →

Available on EDGAR 05/28/2026 - 09:59 AM Accepted by SEC EDGAR 05/28/2026 - 09:59 AM

Stockholders elected two directors and ratified the company’s auditor. Jennifer Cunningham and Sean McClain were elected to the Board through 2029, and Grant Thornton LLP was ratified as independent registered public accounting firm for the fiscal year ending December 31, 2026.

Jennifer Cunningham received strong support with 95,930,621 votes for and 1,276,666 votes withheld. There were also 4,327,793 broker non-votes recorded on her election proposal, which are not counted as votes for or against under typical voting standards.

Sean McClain received 91,449,396 votes for and 5,757,891 votes withheld. The proposal for his election also included 4,327,793 broker non-votes. These results were sufficient to elect him to the Board for a term expiring at the 2029 annual meeting.

Yes. Stockholders ratified Grant Thornton LLP as Montauk Renewables’ independent registered public accounting firm for the year ending December 31, 2026, with 96,949,187 votes for, 4,570,221 against, and 15,672 abstentions, and no broker non-votes reported on this auditor ratification proposal.

Each director election proposal recorded 4,327,793 broker non-votes. Broker non-votes typically arise when brokers do not have discretionary authority to vote on non-routine items and have not received instructions from the beneficial owner, so they do not count as votes for or against.

The two directors elected, Jennifer Cunningham and Sean McClain, will each serve a term expiring at the annual meeting of stockholders held in 2029. This represents a multi-year term on the Montauk Renewables Board, consistent with typical staggered or multi-year director service structures.

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): May 26, 2026

Montauk Renewables, Inc.

(Exact name of registrant as specified in its charter)


Delaware	1-39919	85-3189583
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

5313 Campbells Run Road, Suite 200

Pittsburgh, PA 15205

(Address of principal executive offices) (Zip Code)

(412) 747-8700

(Registrant’s telephone number, including area code)

N/A

(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 Capital 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 5.07

Submission of Matters to a Vote of Security Holders.

On May 26, 2026, Montauk Renewables, Inc. (the “Company”) held its 2026 Annual Meeting of Stockholders (the “Annual Meeting”). Set forth below are the final voting results for each of the matters submitted to a vote of the stockholders at the Annual Meeting.

Proposal 1. The two director nominees nominated by the Company’s Board of Directors (the “Board”) for election to the Board were elected, each for a term that will expire at the annual meeting of stockholders held in 2029, based upon the following votes:


Nominee	For	Withheld	Broker Non-Votes
Jennifer Cunningham	95,930,621	1,276,666	4,327,793
Sean McClain	91,449,396	5,757,891	4,327,793

Proposal 2. The proposal to ratify the appointment of Grant Thornton LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 was approved based upon the following votes:


For	Against	Abstentions	Broker Non-Votes
96,949,187	4,570,221	15,672	0

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.

Source: View Original Filing on SEC EDGAR

MONTAUK RENEWABLES, INC.

Date: May 28, 2026

/s/ John Ciroli

John Ciroli

Chief Legal Officer and Secretary

3 documents