Director/PDMR Shareholding

Directors' Dealings

The Company announces that on 12 June 2013 the following directors' dealing
took place:

Ms Jennifer Allerton, Non-Executive Director, purchased 1,000 shares on the
open market at 1411.5p per share. This represents less than 0.01% of the
Company's issued share capital.

Following this transaction, Jennifer Allerton's total shareholding is 1,000
shares, representing less than 0.01% of the Company's issued share capital.

The Company was notified of the above transaction on 12 June 2013.

Susan Johnson-Brett
Company Secretary
Oxford Instruments plc

Tel: [phone]
Email: [e-mail]

12 June 2013