Oxford Instruments Regulatory News (OXIG)

9 Aug 2012 09:31

For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying Oxford Instruments plc issuer of existing shares to which voting

rights are attached: ii 2 Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights An acquisition or disposal of qualifying financial instruments which

may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to Schroders plc the notification obligation: iii 4. Full name of shareholder(s) (if different from 3.):iv 5. Date of the transaction and date 07.08.12 on which the threshold is crossed or reached: v 6. Date on which issuer notified: 08.08.12 7. Threshold(s) that is/are crossed Below 5% or reached: vi, vii 8. Notified details:A: Voting rights attached to shares viii, ixClass/type of Situation previous Resulting situation after shares to the triggering the triggering transaction transaction if possible Number Number % of voting using Number of Number of rights x the ISIN CODE of Voting of voting Shares Rights shares rights Direct Direct Indirect Direct Indirect xi xii

GB0006650450 2,897,943 2,833,124 2,847,943 N/A 2,783,124 N/A 4.954% B: Qualifying Financial Instruments Resulting situation after the triggering transaction

Type of financial Expiration Exercise/ Number of voting % of voting

instrument date xiii Conversion Period rights that may be rights xiv acquired if the instrument is exercised/ converted.

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of finan Exercise Expiration Exercise/ Number of voting % of voting

cial price date xvii Conversion rights instrument rights xix, xx instrument period refers to xviii Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 2,783,1245 4.954%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi

Schroder Investment Management Limited - 2,715,874 (4.8342%) Schroder Investment Management North America Limited - 67,000 (0.1192%) Schroder & Co Limited - 250 (0.00044%) Proxy Voting: 10. Name of the proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: The shares referred to in section 9 are

held in portfolios managed by those firms on a discretionary basis for clients under investment management agreements. 14. Contact name: Susan Johnson-Brett (Company Secretary) 15. Contact telephone number: 01865 393 324