Transaction in Own Shares

Weir Group PLC
26 May 2005


26 May 2005

                               The Weir Group PLC
                         -----------------------------

                             Purchase of own shares
                          ----------------------------

The Weir Group PLC ('Weir') announces that it has purchased the following number
of its ordinary shares of 12.5p each on the London Stock Exchange via UBS
Investment Bank.

Date of purchase:                     26.05.2005

Number of ordinary shares purchased:  66,305

Price paid per share:                 308.5p


Weir intends to hold the purchased shares in treasury.

Following the purchase of these shares, Weir holds 1,628,935 of its ordinary
shares in treasury and has 205,767,625 ordinary shares in issue (excluding
treasury shares).



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