Director/PDMR Shareholding

Johnson Matthey PLC
07 April 2006

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)
          L C Pentz       (iii)
          F K Sheffy      (i)

3.        Name of person discharging managerial responsibilities/director:

          N A P Carson
          L C Pentz
          F K Sheffy

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 person 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 the 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:

          N A P Carson 3
          L C Pentz    40
          F K Sheffy   15

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:

          £14.883

14.       Date and place of transaction:

          1 February 2006, 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):

16.       Date issuer informed of transaction:

          6 April 2006

17.       Date of grant:

18.       Period during which or date on which it can be exercised:

19.       Total amount paid (if any) for grant of the option:

20.       Description of shares or debentures involved (class and number):

21.       Exercise price (if fixed at time of grant) or indication that price is to be
          fixed at the time of exercise:

22.       Total number of shares or debentures over which options held following
          notification:

23.       Any additional information:

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


7 April 2006



                      This information is provided by RNS
            The company news service from the London Stock Exchange