Transaction in Own Shares

27 March 2026

Oxford Instruments plc

(“Oxford Instruments” or the “Company”)

Transaction in Own Shares

Oxford Instruments announces that, in accordance with the terms of its share buyback programme announced on 2 March 2026 (the “Share Buyback Programme”), the Company purchased the following number of its own ordinary shares of 5p each through J.P Morgan Securities plc ( JPMS plc ) for cancellation:

Date	Aggregate number of ordinary shares purchased	Lowest price paid per share (GBp)	Highest price paid per share (GBp)	Volume weighted average price paid per share (GBp)
20/03/2026	14,167	23.8500	24.5000	24.2274
23/03/2026	14,471	23.1500	24.9500	24.2599
24/03/2026	14,400	24.1000	24.7500	24.4356
25/03/2026	14,200	24.9500	25.4500	25.1733
26/03/2026	13,707	24.8000	25.3000	25.0364

Following settlement of the above purchases and cancellation of the purchased ordinary shares, the Company’s total number of ordinary shares in issue shall be 55,444,917. The Company holds no shares in treasury and therefore the total number of voting rights in the Company will be 55,444,917. This figure for the total number of voting rights may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA’s Disclosure Guidance and Transparency Rules.

Transaction Details:

In accordance with Article 5(1)(b) of the Market Abuse Regulation (EU) No. 596/2014 as it forms part of UK law, detailed information of the individual trades made by JPMS plc on behalf of the Company as part of the Share Buyback Programme can be found at the following link:

  Oxford Instruments plc - Trade Fills - 20.03.26.pdf

For further details:

Oxford Instruments plc

Stephen Lamacraft, Head of Investor Relations         Tel: [phone]

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Oxford Instruments plc - Trade Fills - 20 03 26

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