Response to Press Speculation

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION

FOR IMMEDIATE RELEASE

Atom Holdco plc (the "Atom")

Response to Press Speculation

28/08/2026

In response to recent press news coverage, Atom confirms ongoing discussions between the CEO and Board about succession planning and future senior leadership of the Executive Committee have accelerated in recent weeks. This is part of the Founding CEO and Board's prudent long term planning for Atom's next stage of growth and development. A further announcement will be made, if appropriate, in due course.

DISCLAIMER - INTENDED ADDRESSEES

The information contained in this announcement is for background purposes only and does not purport to be full or complete. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. This announcement does not constitute an offer or invitation for the sale, issuance or subscription for any shares or other securities in any jurisdiction, nor does it purport to give legal, tax or financial advice. Nothing contained herein shall form the basis of or be relied upon in connection with, or act as an inducement to enter into, any investment activity.

Inside Information

The information contained within this announcement is deemed by Atom to constitute inside information as stipulated under the Market Abuse Regulation (EU) no. 596/2014 (as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018). On the publication of this announcement via a Regulatory Information Service, this inside information is now considered to be in the public domain. The person responsible for arranging the release of this announcement on behalf of Atom is Laura Farnworth, Company Secretary.