Director/PDMR Shareholding

Halma plc

(the Company)

Notification and public disclosure of transactions by persons discharging managerial responsibilities (PDMR) and persons closely associated with them

The Company announces that, pursuant to a Court Order in relation to divorce proceedings and having obtained consent to deal from the Chairman, Jennifer Ward sold 37,500 shares in the Company on 8 December 2020 to meet her obligations under that Order. Details of the executed trade provided to the Company are set out below.

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Jennifer Ward

2

Reason for the notification

a)

Position/status

Group Talent, Culture and Communications Director

b)

Initial notification /Amendment

Initial notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Halma plc

b)

LEI

2138007FRGLUR9KGBT40

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 10 pence each in Halma plc

GB0004052071

b)

Nature of the transaction

Sale of shares

c)

Price(s) and volume(s)

d)

Aggregated information

- Aggregated price

- Aggregated volume

- Aggregated total

£23.189309

37,500

£869,599.09

e)

Date of the transaction

2020-12-08

f)

Place of the transaction

XLON

Contact for further information:

Mark Jenkins

Company Secretary, Halma plcTel: +44 (0)1494 721111

A copy of this announcement, together with other information about Halma, may be viewed on its website: www.halma.com