Holding(s) in Company

For filings with the FSA include the annex
For filings with issuer exclude the annex
TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi
1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:ii				Weir Group PLC
2 Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments
An event changing the breakdown of voting rights
Other (please specify):
3. Full name of person(s) subject to the notification obligation:iii		BlackRock, Inc.
4. Full name of shareholder(s) (if different from 3.):iv
5. Date of the transaction and date on which the threshold is crossed or reached:v		10th August 2012
6. Date on which issuer notified:		14th August 2012
7. Threshold(s) that is/are crossed or reached: vi, vii		Holding has gone above 5%

8. Notified details:

A: Voting rights attached to sharesviii, ix

Class/type of shares if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of  voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB0009465807

N/A

N/A

N/A

N/A

10,641,939

N/A

5.01%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/ Conversion Period xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date xvii

Exercise/ Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

CFD

1,141

Nominal

Delta

0.00%

0.00%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

10,643,080

5.01%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi
BlackRock Investment Management (UK) Limited - 10,643,080 (5.01%)
Proxy Voting:
10. Name of the proxy holder:
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:	BlackRock Regulatory Threshold Reporting Team
14. Contact name:	Andrew Manchester
15. Contact telephone number:	020 7743 5773

Note: Annex should only be submitted to the FSA not the issuer
Annex: Notification of major interests in sharesxxii
A: Identity of the persons or legal entity subject to the notification obligation
Full name (including legal form of legal entities)	BlackRock, Inc.
Contact address (registered office for legal entities)	12 Throgmorton Avenue, London, EC2N 2DL
Phone number & email	020 7743 5773; [e-mail]
Other useful information (at least legal representative for legal persons)	Andrew Manchester
B: Identity of the notifier, if applicable
Full name
Contact address
Phone number & email
Other useful information (e.g. functional relationship with the person or legal entity subject to the notification obligation)
C: Additional information
For notes on how to complete form TR-1 please see the FSA website.

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Source: The Weir Group PLC via Thomson Reuters ONE

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