Director/PDMR Shareholding

NOTIFICATION OF TRANSACTIONS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITIES AND CONNECTED PERSONS

1.        Name of the issuer:                                                  
                                                                               
          Johnson Matthey plc                                                  
                                                                               
2.        State whether the notification relates to (i) a transaction notified 
          in accordance with DTR 3.1.2 R, (ii) a disclosure made in accordance 
          with LR 9.8.6R(1) or (iii) a disclosure made in accordance with      
          section 793 of the Companies Act (2006):                             
                                                                               
          In accordance with DTR 3.1.2R                                        
                                                                               
3.        Name of person discharging managerial responsibilities/director:     
                                                                               
          N A P Carson                                                         
          R J MacLeod                                                           
          L C Pentz                                                            
          W F Sandford                                                         
                                                                               
          S Farrant                                                            
          J B Fowler                                                           
          P C Framp                                                            
          N P H Garner                                                         
          G P Otterman                                                         
          J F Walker                                                           
          N Whitley                                                            
                                                                               
4.        State whether notification relates to a person connected with a      
          person discharging managerial responsibilities/director named in 3   
          and identify the connected person:                                   
                                                                               
          No                                                                   
                                                                               
5.        Indicate whether the notification is in respect of a holding of the  
          person referred to in 3 or 4 above or in respect of a non-beneficial 
          interest:                                                            
                                                                               
          In respect of holdings of the persons named in 3 above               
                                                                               
6.        Description of shares (including class), debentures or derivatives or
          financial instruments relating to shares:                            
                                                                               
          Ordinary Shares of £1 each                                           
                                                                               
7.        Name of registered shareholders(s) and, if more than one, the number 
          of shares held by each of them:                                      
                                                                               
          See 3 above.                                                         
                                                                               
8.        State the nature of the transaction:                                 
                                                                               
          The release of ordinary shares of £1 each under the Johnson Matthey  
          Long Term Incentive Plan on 25 July 2012. The shares were allocated  
          on 22 July 2009.                                                     
                                                                               
9.        Number of shares, debentures or financial instruments relating to    
          shares acquired:                                                     
                                                                               
          The table below shows the number of shares released.                 

          Name                               Number of shares released         
                                             (25 July 2012)                    
                                                                               
          N A P Carson                       71,611                            
          R J MacLeod                        55,072                            
          L C Pentz                          31,116                            
          W F Sandford                       25,575                            
                                                                               
          S Farrant                          15,771                            
          J B Fowler                         7,337                             
          P C Framp                          6,567                            
          N P H Garner                       12,787                            
          G P Otterman                       14,066                            
          J F Walker                         18,329                            
          N Whitley                          14,434                            

          Of the released shares, some were sold on 25 July 2012 and some were 
          retained, as set out in 11 below.                                    

10.       Percentage of issued class acquired (treasury shares of that class   
          should not be taken into account when calculating percentage):       
                                                                               
          0.1%                                                                 
                                                                               
11.       Number of shares, debentures or financial instruments relating to    
          shares disposed:                                                     

           Name                 Number of shares Sale Price    Number of shares
                                sold             £             retained        
                                                                              
                                                                               
           N A P Carson         37,332           20.507136     34,279          
           R J MacLeod          42,072           20.507136     13,000          
           L C Pentz            31,116           20.507136     -               
           W F Sandford         20,000           20.507136     5,575           
                                                                               
           S Farrant            8,222            20.507136     7,549           
           J B Fowler           7,337            20.507136     -              
           P C Framp            5,067            20.507136     1,500           
           N P H Garner         12,787           20.507136     -               
           G P Otterman         14,066           20.507136     -               
           J F Walker           18,329           20.507136     -               
           N Whitley            14,434           20.507136     -               
                                                                               

12.        Percentage of issued class disposed (treasury shares of that class  
           should not be taken into account when calculating percentage):      
                                                                               
           0.1%                                                                
                                                                               
13.        Price per share or value of transaction:                            
                                                                               
           See 11 above.                                                       
                                                                               
14.        Date and place of transaction:                                      
                                                                               
           25 July 2012, London                                                
                                                                               
15.        Total holding following notification and total percentage holding   
           following notification (any treasury shares of that class should not
           be taken into account when calculating percentage):                 
                                                                               
                         Total number of allocated shares as at 27 July 2012   
                         under the Johnson Matthey Long Term Incentive Plan              
                                                                               
           N A P Carson  141,489                                              
           R J MacLeod   61,376                                                
           L C Pentz     58,859                                               
           W F Sandford  52,069                                                
                                                                               
16.        Date issuer informed of transaction:                                
                                                                               
           26 July 2012                                                        
                                                                               
17.        Date of grant:                                                      
                                                                               
           N/A                                                                 
                                                                               
18.        Period during which or date on which it can be exercised:           
                                                                               
           N/A                                                                 
                                                                               
19.        Total amount paid (if any) for grant of the option:                 
                                                                               
           N/A                                                                 
                                                                               
20.        Description of shares or debentures involved (class and number):    
                                                                               
           N/A                                                                 
                                                                               
21.        Exercise price (if fixed at time of grant) or indication that price 
           is to be fixed at the time of exercise:                             
                                                                               
           N/A                                                                 
                                                                               
22.        Total number of shares or debentures over which options held        
           following notification:                                             
                                                                               
           N/A                                                                 
                                                                               
23.        Any additional information:                                         
                                                                               
           N/A                                                                 
                                                                               
24.        Name of contact and telephone for queries                           
                                                                               
           Angela Purtill, Deputy Company Secretary                            
                                                                               
           020 7269 8400                                                       

Name and signature of duly authorised officer of issuer responsible for making
notification

Angela Purtill

Date of Notification
27 July 2012