AGM Update

• The Company remains on track to deliver the outlook set out in the Preliminary Results published on 9 April 2025

Oxford, UK - 11 June 2025: OXB (LSE: OXB) ("the Company"), a global quality and innovation-led cell and gene therapy CDMO, provides an update to coincide with its Annual General Meeting being held at 3pm BST today at Windrush Court, Oxford, UK.

OXB has demonstrated strong commercial momentum and made good operational and commercial progress in the year 2025 to date, as it continues to provide viral vector manufacturing services to a diversified portfolio of clients. The Company remains on track to deliver the outlook set out in the Preliminary Results for the year ended 31 December 2024, published on 9 April 2025.

• Frank Mathias, Chief Executive Officer of OXB, commented: "We have delivered strong operational performance so far in the first half of the year, reflecting disciplined execution across our global sites and sustained commercial momentum. The Company reiterates its financial guidance today and remains focused on supporting clients across all stages of development. OXB remains confident in its near and medium-term targets as set out earlier this year."

A corporate presentation will be given at the AGM by Dr. Frank Mathias, Chief Executive Officer and Dr. Lucinda Crabtree, Chief Financial Officer of OXB. No new material information will be disclosed. For details of upcoming financial events, please refer to the Company's investor calendar at https://oxb.com/investor-events/.