Acquisition of Johnson Matthey Plc shares of 10,951 shares at £23.0611802

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Liam Condon

2

Reason for the notification

a)

Position/status

Chief Executive Officer

b)

Initial notification / amendment

Initial notification

3

Details of the issuer

a)

Name

Johnson Matthey Plc

b)

LEI

2138001AVBSD1HSC6Z10

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

Ordinary Shares of 147 ¹⁴³/₁₅₉ pence each

GB00BZ4BQC70

b)

Nature of the transaction

Acquisition of Johnson Matthey Plc shares

c)

Price(s) and volume(s)

Price(s)

Volume(s)

£23.0611802

10,951

d)

Aggregated information

-     Aggregated volume

-     Price

10,951 shares

£252,542.98

e)

Date of the transaction

11 September 2026

f)

Place of the transaction

London Stock Exchange (XLON)