Holding(s) in Company

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

 

1. Identity of the issuer or the underlying issuer                                      
of existing shares to which voting rights are                     Oxford Instruments PLC
attached:                                                                             
                                                                                        
2 Reason for the notification (please tick the appropriate box or boxes):               
                                                                                        
An acquisition or disposal of voting rights                                 x            
                                                                                        
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                                                        
                                                                            x            
An event changing the breakdown of voting rights                                        
                                                                                        
Other (please specify):                                                                 
                                                                                        
3. Full name of person(s) subject to the                          BlackRock, Inc.       
notification obligation:                                                             
                                                                                        
4. Full name of shareholder(s)                                                          
 (if different from 3.):                                                              
                                                                                        
5. Date of the transaction and date on                                                  
which the threshold is crossed or                                16th October 2012      
reached:                                                                               
                                                                                        
6. Date on which issuer notified:                                17th October 2012      
                                                                                        
7. Threshold(s) that is/are crossed or                       Holding has gone below 14% 
reached:                                                                        
                                                                                        


 

8. Notified details:                                                                   
                                                                                       
A: Voting rights attached to shares                                           
                                                                                       
Class/type of    Situation previous  Resulting situation after the triggering          
shares           to the triggering   transaction                                       
                 transaction                                                           
                                                                                       
if possible      Number    Number    Number   Number of voting      % of  voting rights
using            of        of        of       rights                                  
the ISIN CODE    Shares    Voting    shares                                            
                           Rights                                                      
                                     Direct   Direct   Indirect       Direct   Indirect  
                                                                                   
                                                                                       
  GB0006650450   6,943,823 6,943,823   N/A      N/A     6,490,982     N/A      11.55%  
                                                                                       

 

B: Qualifying Financial Instruments                                                     
                                                                                        
Resulting situation after the triggering transaction                                    
                                                                                        
Type of financial  Expiration Exercise/              Number of voting       % of voting 
instrument         date       Conversion Period      rights that may be     rights      
                                                     acquired if the                    
                                                     instrument is                      
                                                     exercised/ converted.              
                                                                                        
                                                                                        
                                                                                        

 

C: Financial Instruments with similar economic effect to Qualifying Financial           
Instruments                                                                      
                                                                                        
Resulting situation after the triggering transaction                                    
                                                                                        
Type of    Exercise Expiration   Exercise/     Number of voting rights   % of voting    
financial  price    date         Conversion    instrument refers to      rights  
instrument                       period                                            
                                                                                        
                                                                                        
                                                                         Nominal   Delta
   CFD                                                 1,342,674                        
                                                                           2.39%   2.39%
                                                                                        

 

Total (A+B+C)                                                                           
                                                                                        
Number of voting rights                  Percentage of voting rights                    
                                                                                        
               7,833,656                                     13.93%                     
                                                                                        


 

9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable:                           
                                                                                        
                                                                                        
                                                                                        
BlackRock Investment Management (UK) Limited -  7,833,656 (13.93%)                      
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        

 

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:                       Oxford Instruments plc                                      
                                                                                        
                                                                     
14. Contact name:                                 Susan Johnson-Brett                                      
                                                  (Company Secretary)                   
                                                                                        
15. Contact telephone number:                     01865 393 200