Directors' Dealings

Johnson,Matthey PLC
17 December 1999


DEALINGS BY DIRECTORS

Name of Company
Johnson Matthey PLC

Name of Director
Mr C R N Clark

Person with Holding(s)
Mr C R N Clark and Mrs C A Clark   

Registered Holder(s)
Mr C R N Clark and Mrs C A Clark

Connected Person(s)
Mrs C A Clark

Nature & Extent of transaction
Mr C R N Clark exercise of options over 20,019 shares
Mr C R N Clark sale of 3,202 shares
Mr C R N Clark transfer of 16,817 shares to spouse
Mrs C A Clark sale of 16,817 shares

Number of shares/amount of stock acquired
Mr C R N Clark 20,019

Percentage of Issued Class
Less than 0.01% 

Number of Shares/Amount of stock disposed of
Mr C R N Clark 3,202
Mrs C A Clark  16,817

Percentage of issued class
Less than 0.01%  

Class of security
Ordinary £1 shares 

Price Per Share
Exercise
20,019 @ 447.95p
Sale
Mr C R N Clark 3,202 @ 672p
Mrs C A Clark 16,817 @ 672p

Date of Transaction 
17 December 1999

Date Company Informed
17 December 1999

Total holding following this notification
                    Shares       Options       LTIP
C R N Clark         15,486       198,325       144,516
Mrs C A Clark       15,000
TOTAL               30,486

Total Percentage holding of Issued Class following this notification
Less than 0.01% 

Contact and telephone number for queries  
Ms Brigid T Conway 0171 269 8461

Name of authorised company official responsible for making this notification
Ms Brigid T Conway 0171 269 8461

Date of Notification:       17 December 1999