Holding(s) in Company

Weir Group PLC
17 December 2007


TR1: Notifications of Major Interests in Shares

1. Identity of the issuer or the underlying issuer of existing shares to which 
voting rights are attached:
 Weir Group plc, The


2. Reason for notification (yes/no)

                                                                     
An acquisition or disposal of voting rights                                 Yes
                             
An acquisition or disposal of financial instruments which may result in
the acquisition of shares already issued to which voting rights are     
attached

An event changing the breakdown of voting rights
                              
Other (please specify):______________
                             

3. Full name of person(s) subject to                 
notification obligation:                           
Baillie Gifford & Co


4. Full name of shareholder(s) (if
different from 3):                                      


5. Date of transaction (and date on which              
the threshold is crossed or reached if             
different):
13 December 2007

6. Date on which issuer notified:                      
 17 December 2007                        

7. Threshold(s) that is/are crossed or                                
reached:                                       
    5%


8: Notified Details
A: Voting rights attached to shares
Class/type   Situation previous   Resulting situation after the triggering
of shares    to the triggering    transaction
             transaction
If possible
use ISIN     Number  Number of    Number of   Number of voting   Percentage of
code         of      voting       shares      rights             voting rights
             shares  rights
                                              Direct Indirect    Direct Indirect
Ordinary     Below   Below 5%      12173278           12173278            5.82
             5%
Share
GB0009465807

B: Financial Instruments
Resulting situation after the triggering transaction
Type of     Expiration Exercise/     No. of voting rights that may   Percentage
financial   date       conversion    be acquired (if the instrument  of voting
instrument             period/date   exercised/converted)            rights
N/A



Total (A+B)
Number of voting rights              Percentage of voting rights
 12173278                                        5.82

9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:
In the narrative below, the figures in ( ) indicate the amount of voting rights
and the percentage held by each controlled undertaking where relevant.
Baillie Gifford & Co, a discretionary investment manager, is the parent
undertaking of an investment management group.
Its whollyowned direct subsidiary undertaking Baillie Gifford Overseas Limited
(1744712; 0.8%) is also a discretionary investment manager.
Its whollyowned direct subsidiary undertaking Baillie Gifford Life Limited
(2799483; 1.3%) is a life assurance company which procures discretionary
investment management services from Baillie Gifford & Co in respect of its own
account shareholdings.
Its whollyowned indirect (via Baillie Gifford Life Limited) subsidiary
undertaking Baillie Gifford & Co Limited (198600; 0.1%) is an OEIC Authorised
Corporate Director and Unit Trust Manager which has delegated its discretionary
investment management role to Baillie Gifford & Co.

Proxy Voting:
10. Name of proxy holder:                                                  N/A
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:
14 Contact name:                                       Myra McIntyre
                                                       Scott Russell
15. Contact telephone number:                          0131 275 2154
                                                       0131 275 2106




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