Announcement to the London Stock Exchange

On 25 September 2017 the Company’s Executive Directors were granted nil cost option awards over ordinary shares of 5 pence each under the Oxford Instruments plc Performance Share Plan (the "PSP") as noted below:

Subject to the terms of the PSP, the awards will ordinarily vest and become exercisable as from the third anniversary of the grant of the awards subject to the grantee’s continued service and to the extent to which earnings per share growth and return on capital employed criteria are met over a measurement period comprising three financial years of the Company.

Once exercisable, an award shall ordinarily remain exercisable until the eve of the tenth anniversary of the grant date of the awards.

No consideration was paid for the grant of the awards and no consideration is due on the vesting and/or exercise of the awards.

This notification is made in accordance with DR 3.1.4R(1)(a).

Name of contact and telephone number for queries: Susan Johnson-Brett, Tel: 01865 393324

For and on behalf of Oxford Instruments plc.

Susan Johnson-Brett

Company Secretary

Date: 26 September 2017