PDMR dealing and TR1 announcement

One Health Group PLC

PDMR Share Dealing

TR1

13 September 2023

One Health Group PLC (“One Health” or the “Company”) announces the following dealings in its shares by Jessica Sellars, who is a person discharging managerial responsibilities in the Company, and by One Health Group Trustees LLP, which is the trustee of the Company’s Employee Benefit Trust and a person closely associated with Derek Bickerstaff and Adam Binns and who are directors of the Company, in each case, pursuant to and subsequent to the exercise of options granted under the One Health Group Limited EMI Share Option Plan (“EMI Options), on 11 September 2023:

Jessica Sellars exercised EMI Options to purchase 50,000 shares in the Company at a price of 66.7 pence per share and sold 50,000 shares in the Company at a price of 162.5 pence per share;

One Health Group Trustees LLP sold 50,000 shares in the Company at a price of 66.7 pence per share and acquired 50,000 shares in the Company at a price of 162.5 pence per share.

Further details of the disclosures made to the Company by Jessica Sellars and One Health Group Trustees LLP are contained in Appendix 1.

Following the above dealings, there is no change to the shareholding of Jessica Sellars in the Company.

Appendix 2 contains disclosure forms relating to One Health Group Trustees LLP which has notified One Health that it controlled over 3% of the Total Voting Rights in the Company and that its percentage interest has changed as a result of its sale and acquisition of shares in the Company outlined above. Following these dealings, One Health Group Trustees LLP will hold 977,066 shares in the Company, representing approximately 9.30% of the Company’s issued share capital.

This announcement contains inside information for the purposes of Article 7 of EU Regulation
596/2014. Which is part of the United Kingdom domestic law pursuant to the Market Abuse (Amendment) (EU Exit) Regulations (SI 2019/310)(“UK MAR”).

The directors of One Health accept responsibility for this announcement.

Enquiries

One Health Group PLC (via Square 1 Consulting)

Square 1 Consulting

David Bick

020 7929 5599

Oberon Capital (AQSE Corporate Adviser and Broker)

Nick Lovering, Mike Seabrook

020 3179 5300

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