Argo Blockchain adjusts ADS-to-share ratio aiming at Nasdaq compliance

Rhea-AI Filing Summary

Argo Blockchain plc reports that it will change the ratio of its American Depositary Shares so that one ADS will represent 2,160 ordinary shares instead of ten ordinary shares. The company states this adjustment is intended to help it regain and maintain compliance with Nasdaq’s listing criteria, and it anticipates the ratio change will be effective as of 12 December 2025. Argo describes itself as a dual-listed cryptocurrency mining company with operations in North America and the UK, focused on large-scale, predominantly renewable-powered mining activities.

Insights

Equity Capital Markets Analyst

Argo is executing a major ADS ratio change to support Nasdaq listing compliance.

Argo Blockchain plans to change each American Depositary Share so it represents 2,160 ordinary shares instead of ten ordinary shares. This sort of ratio change is economically similar to a reverse split at the ADS level, altering the price per ADS while leaving the underlying company’s total value unchanged in mechanical terms.

The company explains that this adjustment is intended to help it regain and maintain compliance with Nasdaq’s listing criteria. Maintaining a Nasdaq listing can be important for trading liquidity and access to a broad investor base, although the announcement does not quantify any direct financial effects.

The company anticipates the new ADS ratio will be effective as of 12 December 2025. Future disclosures in its annual and periodic reports may provide additional detail on how the new ratio interacts with its broader restructuring plans and ongoing listing requirements.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_____________________

FORM 6-K

_____________________

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November, 2025

Commission File Number: 001-40816

_____________________

Argo Blockchain plc

(Translation of registrant’s name into English)

_____________________

Eastcastle House

27/28 Eastcastle Street

London W1W 8DH

England

(Address of principal executive office)

_____________________

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

EXHIBIT INDEX

Exhibit No.         1 Description ADS Ratio Change Effective Date dated 24 November 2025

Press Release

21 November 2025

Argo Blockchain plc

("Argo" or "the Company")

American Depositary Shares ratio change

As previously announced, in order for the Company to regain and maintain compliance with The Nasdaq Stock Market LLC's applicable listing criteria, Argo will adjust the ratio of its American Depositary Shares ("ADSs") to its ordinary shares so that one ADS will represent 2,160 ordinary shares instead of ten ordinary shares.  The Company anticipates that the ratio change will be effective as of 12 December 2025.

Enquiries:

ARGO
Email:	ir@argoblockchain.com

About Argo:

Argo Blockchain plc is a dual-listed (LSE: ARB; NASDAQ: ARBK) blockchain technology company focused on large-scale cryptocurrency mining. With a mining facility in Quebec and offices in the US, Canada, and the UK, Argo's global, sustainable operations are predominantly powered by renewable energy. In 2021, Argo became the first climate positive cryptocurrency mining company, and a signatory to the Crypto Climate Accord. For more information, visit www.argoblockchain.com.

Forward looking statements

This announcement contains "forward-looking statements," which can be identified by words like "may," "will," "likely," "should," "expect," "anticipate," "future," "plan," "believe," "intend," "goal," "seek," "estimate," "project," "continue" and similar expressions. Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based only on the Company's current beliefs, expectations and assumptions regarding the future of its business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of the Company's control. The information in this announcement about the Company's anticipated ratio change and the Company's ability to regain compliance with Nasdaq's listing criteria are forward-looking statements. Therefore, you should not rely on any of these forward-looking statements. Important factors that could cause the Company's actual results and financial condition to differ materially from those indicated in the forward-looking statements include market conditions; the Company's ability to implement the proposed Restructuring Plan on the expected timeline or at all; the ability to retain the Company's listing on Nasdaq; operational, financial, regulatory, tax and legal risks; assumptions underlying revenue, EBITDA and valuation estimates; and the principal risks and uncertainties described in the risk factors set forth in the Company's Annual Report and Financial Statements and Form 20-F for the year ended 31 December 2024.

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, thereunto duly authorized.

Date: 24 November, 2025 ARGO BLOCKCHAIN PLC By: /s/ Justin Nolan Name: Justin Nolan Title: Chief Executive Officer

FAQ

What ADS ratio change did Argo Blockchain (ARBK) announce?

Argo Blockchain announced that each of its American Depositary Shares will represent 2,160 ordinary shares instead of the current ten ordinary shares.

Why is Argo Blockchain changing its ADS to ordinary share ratio?

The company states that the ADS ratio change is being made in order to help regain and maintain compliance with Nasdaq’s applicable listing criteria.

When will Argo Blockchain’s new ADS ratio take effect?

Argo expects the ADS ratio change to be effective as of 12 December 2025, according to the announcement.

Does the Argo Blockchain ADS ratio change affect the underlying business?

The announcement focuses on the ADS ratio and Nasdaq listing compliance. It does not describe changes to Argo’s underlying cryptocurrency mining operations.

On which exchanges is Argo Blockchain listed?

Argo Blockchain is described as a dual-listed company, trading on the London Stock Exchange (LSE: ARB) and on Nasdaq (ARBK).

What type of business does Argo Blockchain operate?

Argo Blockchain is a blockchain technology company focused on large-scale cryptocurrency mining, with operations in Quebec and offices in the US, Canada, and the UK.