Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN Information provided on this form must be typed or printed electronically andprovided to an ris. Date: 02 July 2013 Name of applicant: Oxford Instruments plc Period of return: From: 1 January To: 30 June 2013 2013 Name of scheme: ESO Scheme Senior Executive (A3274711995) Long-Term Incentive Scheme (SELTIS) Balance of unallotted securities under scheme 354,620 120,000(s) from previous return: Plus: The amount by which the block scheme(s) Nil Nilhas been increased since the date of the lastreturn (if any increase has been applied for): Less: Number of securities issued/allotted 154,947 Nilunder scheme(s) during period (see LR3.5.7G): Equals: Balance under scheme(s) not yet issued/ 199,673 120,000allotted at end of period: Name of contact: Susan Johnson-Brett Telephone number of contact: 01865 393324