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                                                          
         J B Fowler                                                            
         G P Otterman                                                          
         L C Pentz                                                             
         J F Walker                                                            
                                                                               
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:                                       
                                                                               
         T Rowe Price Trust as Trustee of the Johnson Matthey Salaried         
         Employees Savings Investment Plan                                     
                                                                               
8.       State the nature of the transaction:                                  
                                                                               
         Dividend reinvestment by the Trustee of the Johnson Matthey Salaried  
         Employees Savings Investment Plan                                     
                                                                               
9.       Number of shares, debentures or financial instruments relating to     
         shares acquired:                                                      
                                                                               
                           Reinvestment (i)     Reinvestment (ii)  
         N A P Carson      8                    3                               
         J B Fowler        53                   22                               
         L C Pentz         126                  49                               
         G P Otterman      220                  85                              
         J F Walker        77                   30                               
                                                                               
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:                              
                                                                               
         Reinvestment (i) £20.04                                               
         Reinvestment (ii) £22.37                                              
                                                                               
14.      Date and place of transaction:                                        
                                                                               
         Reinvestment (i) 2 August 2011, London                              
         Reinvestment (ii) 7 February 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):                   
                                                                               
         N A P Carson 188,771 ordinary shares of £1 each                      
         L C Pentz 25,756 ordinary shares of £1 each                           
                                                                               
16.      Date issuer informed of transaction:                                  
                                                                               
         14 February 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 8461                                                         

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

Angela Purtill

Date of Notification
16 February 2012