Director/PDMR Shareholding

Johnson Matthey PLC
10 October 2005

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):


              (iii)

3.            Name of person discharging managerial responsibilities/director:


              N A P Carson
              J N Sheldrick


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:


              Share Nominees Limited

8.            State the nature of the transaction:


              Dividend reinvestment - PEPs


9.            Number of shares, debentures or financial instruments relating to shares acquired:


              N A P Carson        3
              J N Sheldrick       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:


              £11.8865


14.           Date and place of transaction:


              3 October 2005, 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        50,737
              J N Sheldrick       53,147


16.           Date issuer informed of transaction:


              4 October 2005


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



4 October 2005







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