7 January 2026

Aptamer Group plc

("Aptamer", the "Company" or the "Group")

Trading update - Media comment and speculation

Aptamer Group plc (AIM: APTA), the developer of next-generation synthetic binders for the life sciences industry, provides an update regarding media comment and speculation following the trading update released by the Company earlier today.  The Company confirms that the Group's cash position provides a runway through to June 2027 in line with the previous statements (see RNS 14 October 2025, "Full year results for the twelve months ended 30 June 2025").

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About Aptamer Group

Aptamer Group is a leading developer of next-generation synthetic binders delivering innovation to the life sciences industry. The Group develops Optimer® binders, advanced molecules that work like antibodies by attaching to specific targets in the body. These binders are used in medicine, diagnostic tests, and research tools, offering benefits like high stability, reliable performance, and lower costs compared to traditional antibodies.

Aptamer operates a fee-for-service business in the US$210 billion market for antibody alternatives, working with all top 10 global pharmaceutical companies. It is also building valuable Optimer® assets with partners, aiming for future licensing revenue.

Founded in 2008, the Group listed on the London Stock Exchange AIM market in December 2021 and is headquartered in York, UK.

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