Transaction in Own Shares

13 February 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 25 June 2025 (the “Share Buyback Programme”), the Company purchased the following number of its own ordinary shares of 5p each through Deutsche Bank AG, London Branch (trading for these purposes as Deutsche Numis) (“Deutsche Numis”) for cancellation at an average price of 2598.9725 pence per share:

Date of purchase:	12 February 2026
Aggregate number of ordinary shares purchased:	10,000
Lowest price paid per share (GBp):	2590.0000
Highest price paid per share (GBp):	2600.0000
Volume weighted average price paid per share (GBp):	2598.9725

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 55,912,226. The Company holds no shares in treasury and therefore the total number of voting rights in the Company will be 55,912,226. 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	2598.9725	10,000

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
377	2600.00	08:17:50	00079157942TRLO0	XLON
426	2600.00	08:17:50	00079157944TRLO0	XLON
425	2600.00	10:12:11	00079164397TRLO0	XLON
382	2600.00	10:12:11	00079164398TRLO0	XLON
420	2590.00	10:37:51	00079165809TRLO0	XLON
409	2590.00	11:03:50	00079166724TRLO0	XLON
397	2595.00	11:23:05	00079167511TRLO0	XLON
5000	2600.00	11:59:31	00079168753TRLO0	XLON
223	2600.00	16:09:16	00079182673TRLO0	XLON
107	2600.00	16:09:16	00079182674TRLO0	XLON
378	2600.00	16:09:16	00079182675TRLO0	XLON
378	2600.00	16:09:16	00079182676TRLO0	XLON
355	2600.00	16:09:16	00079182677TRLO0	XLON
387	2600.00	16:09:16	00079182678TRLO0	XLON
182	2600.00	16:09:16	00079182679TRLO0	XLON
154	2600.00	16:09:16	00079182680TRLO0	XLON

For further details:

Oxford Instruments plc

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

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