Oxford Instruments PLC

Transaction in Own Shares • Oct 23, 2025

National Storage Mechanism | Additional information

Oxford Instruments Plc - Transaction in Own Shares

PR Newswire

LONDON, United Kingdom, October 23

23 October 2025

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 25 June 2025 (the “Share Buyback Programme”), the Company purchased the following number of its own ordinary shares of 5p each through Numis Securities Limited (“Deutsche Numis”) for cancellation at an average price of 1848.8080 pence per share:

Date of purchase:	22 October 2025
Aggregate number of ordinary shares purchased:	3,141
Lowest price paid per share (GBp):	1842.0000
Highest price paid per share (GBp):	1854.0000
Volume weighted average price paid per share (GBp):	1848.8080

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 56,705,334. The Company holds no shares in treasury and therefore the total number of voting rights in the Company will be 56,705,334. 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.

Aggregate information:

Venue	Weighted average price paid per share (GBp)	Aggregate number of shares purchased
London Stock Exchange	1848.8080	3,141

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, the table below contains detailed information of the individual trades made by Deutsche Numis on behalf of the Company as part of the Share Buyback Programme:

Number of ordinary shares purchased	Transaction price (GBp share)	Time of transaction (UK Time)	Transaction reference number	Trading venue
372	1842.00	08:53:00	00077573198TRLO0	XLON
14	1852.00	09:07:05	00077573556TRLO0	XLON
70	1852.00	09:07:05	00077573557TRLO0	XLON
14	1852.00	09:07:05	00077573558TRLO0	XLON
335	1852.00	09:07:43	00077573565TRLO0	XLON
230	1850.00	09:13:00	00077573681TRLO0	XLON
96	1850.00	09:13:00	00077573682TRLO0	XLON
18	1852.00	09:20:33	00077573916TRLO0	XLON
53	1852.00	09:20:33	00077573917TRLO0	XLON
201	1850.00	09:48:44	00077574866TRLO0	XLON
144	1850.00	09:48:44	00077574867TRLO0	XLON
300	1848.00	10:25:15	00077575957TRLO0	XLON
110	1846.00	10:25:47	00077575990TRLO0	XLON
224	1846.00	10:25:47	00077575991TRLO0	XLON
152	1846.00	10:38:25	00077576348TRLO0	XLON
149	1846.00	10:38:25	00077576349TRLO0	XLON
318	1850.00	11:03:14	00077577135TRLO0	XLON
183	1854.00	11:15:10	00077577445TRLO0	XLON
158	1854.00	11:15:10	00077577446TRLO0	XLON

For further details:

Oxford Instruments plc

Stephen Lamacraft, Head of Investor Relations         Tel: +44 7776 433 916

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