Holding(s) in Company

NOTIFICATION OF MAJOR INTERESTS IN SHARES

1.   Identity of the issuer or the underlying issuer of existing shares to     
     which voting rights are attached:                                         
                                                                               
     Johnson Matthey Plc                                                       
                                                                               
2.   Reason for the notification:                                              
                                                                               
     An acquisition or disposal of voting rights                               
                                                                               
3.   Full name of person(s) subject to the notification obligation:            
                                                                               
     Artisan Partners Limited Partnership, Artisan Investments GP LLC, Artisan 
     Partners Holdings LP, and Artisan Partners Asset Management Inc.          
                                                                               
4.   Full name of shareholder(s) (if different from 3.):                       
                                                                               
     State Street Bank, Bank of New York, Mellon Bank, Northern Trust, Fifth   
     Third, JPMorgan Chase, CIBC Mellon, Fidelity, Brown Brothers Harriman, and
     Bank of America                                                           
                                                                               
5.   Date of the transaction (and date on which the threshold is crossed or    
     reached if different):                                                    
                                                                               
     14 November 2014                                                          
                                                                               
6.   Date on which issuer notified:                                            
                                                                               
     17 November 2014                                                          
                                                                               
7.   Threshold(s) that is/are crossed or reached:                              
                                                                               
     Above 5%                                                                  
                                                                               
8.   Notified details:                                                         
                                                                               
     VOTING RIGHTS ATTACHED TO SHARES:                                         
                                                                               
     Class/type of shares (if possible using the ISIN CODE):                   
                                                                               
     GB00B70FPS60                                                              
                                                                               
     Situation previous to the triggering transaction:                         
                                                                               
     Number of shares: 10,186,504                                             
     Number of voting rights: 10,186,504                                       
                                                                               
     Resulting situation after the triggering transaction:                     
                                                                               
     Number of shares (direct): N/A                                            
     Number of voting rights (direct): N/A                                     
     Number of voting rights (indirect): 10,308,291                            
     % of voting rights (direct): N/A                                          
     % of voting rights (indirect): 5.03%                                      
     Total voting rights: 10,308,291 (5.03%)                                   
                                                                               
9.   Chain of controlled undertakings through which the voting rights and/or   
     the financial instruments are effectively held if applicable:             
                                                                               
     Artisan Partners Limited Partnership ("APLP"), a U.S. registered          
     investment adviser, is a limited partnership organized under the laws of  
     the State of Delaware. Control of APLP is vested in its general partner,  
     Artisan Investments GP LLC ("Artisan LLC"), a limited liability company   
     organized under the laws of the State of Delaware. Artisan Partners       
     Holdings LP ("Artisan Holdings") is the sole member of Artisan LLC, and is
     the sole limited partner of APLP.  Control of Artisan Holdings is vested  
     in its general partner, Artisan Partners Asset Management Inc. ("APAM"),  
     organized under the laws of the State of Delaware.                        
                                                                               
     APAM is a publicly traded company and has in issue three classes of common
     stock as well as preferred stock. No single undertaking is now in control 
     of APAM.                                                                  
                                                                               
10.  Name of the proxy holder:                                                 
                                                                               
     Artisan Partners Limited Partnership                                      
                                                                               
11.  Number of voting rights proxy holder will cease to hold: N/A              
                                                                               
12.  Date on which proxy holder will cease to hold voting rights: N/A          
                                                                               
13.  Additional Information                                                    
                                                                               
     N/A                                                                       
                                                                               
14.  Contact Name:                                                             
                                                                               
     Angela Purtill, Deputy Company Secretary, Johnson Matthey Plc             
                                                                               
15.  Contact Telephone Number:
                                                 
     020 7269 8461                                                             

18 November 2014