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 DR 3.1.4(R)(1)(a); or (ii) DR 3.1.4 (R)(1)(b) a   
          disclosure made in accordance with section 324 (as extended by       
          section 328) of the Companies Act 1985 or (iii) both (i) and (ii):   
                                                                               
          N A P Carson    (iii)                                                
          P N Hawker      (iii)                                                
          D W Morgan      (iii)                                                
          L C Pentz       (iii)                                                
          W F Sandford    (i)                                                  
          J N Sheldrick   (iii)                                                
          I F Stephenson  (i)                                                  
          N Whitley       (i)                                                  
                                                                               
3.        Name of person discharging managerial responsibilities/director:     
                                                                               
          N A P Carson                                                         
          P N Hawker                                                           
          D W Morgan                                                           
          L C Pentz                                                            
          W F Sandford                                                         
          J N Sheldrick                                                       
          I F Stephenson                                                       
          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 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:                                      
                                                                               
          Computershare Trustees Limited                                       
                                                                               
8.        State the nature of the transaction:                                 
                                                                               
          Monthly acquisition of shares via the Johnson Matthey Share Incentive
          Plan                                                                 
                                                                               
9.        Number of shares, debentures or financial instruments relating to    
          shares acquired:                                                     
                                                                               
          N A P Carson    21                                                   
          P N Hawker      21                                                   
          D W Morgan      21                                                   
          L C Pentz       21                                                   
          W F Sandford    21                                                   
          J N Sheldrick   21                                                   
          I F Stephenson  21                                                   
          N Whitley       24                                                   
                                                                               
10.       Percentage of issued class acquired (treasury shares of that class   
          should not be taken into account when calculating percentage):       
                                                                               
          Less than 0.1%                                                       
                                                                               
11.       Number of shares, debentures or financial instruments relating to    
          shares disposed:                                                     
                                                                               
          N/A                                                                  
                                                                               
12.       Percentage of issued class disposed (treasury shares of that class   
          should not be taken into account when calculating percentage):       
                                                                               
          N/A                                                                  
                                                                               
13.       Price per share or value of transaction:                             
                                                                               
          £17.442                                                              
                                                                               
14.       Date and place of transaction:                                       
                                                                               
          20 June 2007, 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):                  
                                                                               
          N A P Carson    61,376                                               
          P N Hawker      15,393                                               
          D W Morgan      40,648                                               
          L C Pentz       18,595                                               
          J N Sheldrick   74,583                                               
                                                                               
16.       Date issuer informed of transaction:                                 
                                                                               
          20 June 2007                                                         
                                                                               
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, Assistant Company Secretary                          
          020 7269 8461      

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

Angela Purtill

Date of Notification
20 June 2007