Grant of a top-up Restricted Share Award under The Weir Group Share Reward Plan in connection with Andrew Neilson's appointment as Chief Executive Officer. The award will vest in a single tranche on 3 August 2029. of 7,159 shares at

1.

Details of the person discharging managerial responsibilities/ person closely associated

a)

Name

Andrew Neilson

2.

Reason for the notification

a)

Position/status

Chief Executive Officer

b)

Initial notification/ Amendment

Initial Notification

3.

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

a)

Name

The Weir Group PLC

b)

LEI

549300KDR56WHY9I3D10

4.

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

a)

Description of the financial instrument, type of instrument

                      Identification code

Ordinary shares of 12.5p each fully paid

GB0009465807

b)

Nature of the transaction

Grant of a top-up Restricted Share Award under The Weir Group Share Reward Plan in connection with Andrew Neilson's appointment as Chief Executive Officer. The award will vest in a single tranche on 3 August 2029.

Following vesting there is a requirement to retain the vested shares (except for any shares sold to cover any applicable tax withholding requirement) for a period of two additional years.

During this time the PDMR is not entitled to sell the shares or otherwise deal with them. The Award is not subject to performance conditions.

No consideration was paid for the grant of the award.

 c)

Price(s) and volume(s)

d)

Aggregated information

-     Aggregated volume

-     Price

N/A

e)

Date of the transaction

3 August 2026

f)

Place of the transaction

Outside a trading venue