Director/PDMR Shareholding

NOTIFICATION OF TRANSACTIONS OF DIRECTORS' DEALINGS Oxford Instruments plc (the "Company") announces that the following directors'dealings took place: On 8 January 2014, the following directors acquired ordinary shares of 5p eachin the Company upon the exercise of options granted under the OxfordInstruments 2001 Executive Share Option Scheme "ESOS" and the OxfordInstruments plc Senior Executive Long Term Incentive Scheme "SELTIS". Inaccordance with the terms of the ESOS, all options (except for approvedoptions) were "net gain" settled as share appreciation rights by reference tothe mid market closing price of the Company's shares on 7 January 2014 (1811p)and the relevant option price. A number of shares from both the ESOS and SELTISwere then sold in the market between 8 and 10 January 2014 at an average priceof 1723.7955p, with the balance being retained by the directors, as follows:- ESOS and SELTIS Options exercised and shares sold No. of Base option No. of Shares Shares options price shares sold retained exercised acquired Jonathan Flint 52,916 705p 32,317* 52,273 9,628 Chief Executive 2,084 705p 2,084 27,500 Nil 27,500 Kevin Boyd 35,873 705p 21,909* 35,631 5,278 Finance Director 19,000 Nil 19,000 Claire Flint** 22,395 705p 13,677* 14,592 1,690 2,605 705p 2,605 *shares acquired equal to "net gain" **Claire Flint is an employee of the Company and a Connected Person to JonathanFlint by way of marriage. Following this transaction, Jonathan Flint and Kevin Boyd have increased theirshareholdings and now hold the following number of ordinary shares of 5p in theCompany:- Jonathan Flint Kevin Boyd Claire Flint** Chief Executive Finance Director Interest in shares before 191,464 86,295 2,973notification Total interest in shares 201,092 91,573 4,663following thisnotification % of issued share capital 0.35% 0.16% 0.01% This notice is given in fulfilment of the obligations under DTR 3.1.4R(1) 10 January 2014 Susan Johnson-BrettCompany SecretaryOxford Instruments plcTel: 01865 393324Email: [email protected]