RNS Number : 4337A Oxford Nanopore Technologies plc 12 March 2025 12 March 2025 Oxford Nanopore Technologies plc (the "Company") Director/ PDMR Notification Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them The Company has been notified that, on 11 March 2025, John O'Higgins, a Non-Executive Director of the Company and a Person Discharging Managerial Responsibilities, purchased a total of 77,000 ordinary shares in the Company at a price of £0.9717 per share. This announcement is made pursuant to the Company's obligations under Article 19(3) of the UK Market Abuse Regulation. John O'Higgins - purchase of shares Enquiries: Investors ir@nanoporetech.com Media media@nanoporetech.com OxfordNanoporeTechnologies@teneo.com This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com. RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END DSHBLGDXDSBDGUD