Director/PDMR Shareholding

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

1) Shares purchased with reinvested dividends on shares held in the Johnson Matthey Share Incentive Plan

2) Shares purchased with reinvested dividends on shares held in Computershare's Vested Share Account

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1) £23.15222

2) £23.15222

1) 176

2) 7901.75103

d)

Aggregated information

- Aggregated volume

- Price

- Total

8,077.75103 shares

£23.15222 per share

£187,017.87

e)

Date of the transaction

10 September 2026

f)

Place of the transaction

London Stock Exchange (XLON)

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Alastair Judge

2

Reason for the notification

a)

Position/status

Chief Financial 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

1) Shares purchased with reinvested dividends on shares held in the Johnson Matthey Share Incentive Plan

2) Shares purchased with reinvested dividends on shares held in Computershare's Vested Share Account

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1) £23.15222

2) £23.15222

1) 345

2) 4775.75931

d)

Aggregated information

- Aggregated volume

- Price

- Total

5,120.75931 shares

£23.15222 per share

£118,556.95

e)

Date of the transaction

10 September 2026

f)

Place of the transaction

London Stock Exchange (XLON)