Holding(s) in Company

Oxford Instruments plc has been notified by Aviva plc of their restatement of
historic interest in compliance with the FSA's new Disclosure and Transparency
Rules as follows:

Aviva plc and its subsidiaries has an interest in 1,611,496 Ordinary Shares of
5p each which, represents 3.28% of the issued share capital of the Company. The
number of voting rights is also 1,611,496.

The Registered Holders of these shares are as follows:

BNY Norwich Union Nominees Limited 279,705

Chase GA Group Nominees Limited 892,354

Chase Nominees Limited 104,024

CUIM Nominee Limited 304,647

Vidacos Nominees Limited 30,766