Holding(s) in Company

Johnson,Matthey PLC
19 March 2003



                   NOTIFICATION OF MAJOR INTERESTS IN SHARES





1.         Name of company                                Johnson Matthey plc



2.         Name of shareholder having                  Fidelity Investments
a major interest



3.         Person with holding                         As in 2 above



4.         Name of registered holder                  

                              Mellon Bank                                 11,748
                              State Street Nominees Ltd                   25,500
                              Lloyds Bank Nominees Ltd                   132,200
                              Brown Brothers Harriman                      5,900
                              Northern Trust                              33,000
                              State Street Bank & Trust                   33,200
                              Bank of New York - Europe                   10,500
                              MSCO                                        35,000
                              National Cities                             31,800
                              Clydesdale Bank (Head Office) 
                              Nominees Ltd                             1,071,091
                              Chase Manhattan Bank London                413,000
                              Bank of New York London                     98,900
                              Citibank                                     5,800
                              Credit Suisse FST BOS Zurich                 4,300
                              Chase Nominees Ltd                          92,674
                              Nortrust Nominees Ltd                       44,170
                              BT Globenet Nominees Ltd                    39,000
                              MSS Nominees Ltd                            60,300
                              RBS Trust Bank                             119,506
                              Bankers Trust                              266,635
                              Citibank                                   136,530
                              Bank of New York Europe                     51,415
                              HSBC Client Holdings Nominee (UK) Ltd      117,300
                              Nortrust Nominees Ltd                      408,587
                              Bankers Trust                               85,990
                              Chase Nominees Ltd                          64,742
                              Morgan Stanley                             239,100
                              RBS Trust Bank                             386,450
                              Citibank                                   126,336
                              MSS Nominees Ltd                            70,605
                              Northern Trust                             883,659
                              Bank of New York Europe                     80,500
                              Chase Manhattan Bank London                125,374
                              Deutsche Bank                               76,100
                              JP Morgan                                  323,132
                              Mellon Nominees Ltd                         22,800
                              State Street Nominees Ltd                  167,400
                              Bank of New York Brussels                  200,826
                              Bank of New York London                    409,800
                              State Street Bank & Trust                  134,200
                              National Australia Bank                      4,300
                              PICG                                         2,200
          





5.         Number of shares/amount of                 not known
stock acquired



6.         Percentage of issued class                     not known



7.         Number of shares/amount                     n/a
of stock disposed



8.         Percentage of issued class                     n/a



9.         Class of security                   Ordinary £1 shares



10.       Date of transaction                                not known



11.       Date company informed                        19 March 2003



12.       Total holding following this                    6,651,570
notification



13.       Total percentage holding                       3.03%
of issued class following this
notification



14.       Any additional information



15.       Name of contact and telephone             A L Cossey
number for queries                                0207 269 8461



16.       Name of authorised company                A L Cossey
official responsible for making
this notification

Date of this notification:                                19 March 2003



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