Director/PDMR Shareholding

Directors' Dealings The Company announces that on 12 June 2013 the following directors' dealingtook place: Ms Jennifer Allerton, Non-Executive Director, purchased 1,000 shares on theopen market at 1411.5p per share. This represents less than 0.01% of theCompany's issued share capital. Following this transaction, Jennifer Allerton's total shareholding is 1,000shares, 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-BrettCompany SecretaryOxford Instruments plc Tel: 01865 393324Email: susan.johnson-brett@oxinst.com

12 June 2013