Weir Group Regulatory News (WEIR)

1.

Name of the issuer

THE WEIR GROUP PLC

2.

State whether the notification relates to (i) a transaction notified in accordance with DR 3.1.2R;

(ii) a disclosure made in accordance with LR 9.8.6R(1) or

(iii) a disclosure made in accordance with section 793 of the Companies Act 2006.

(i)

3.

Name of person discharging managerial responsibilities/director

(1) ALAN MITCHELSON

(2) KEITH COCHRANE

(3) SCOT SMITH

(4) STEVE NOON

4.

State whether notification relates to a person connected with a person discharging managerial responsibilities/director named in 3 and identify the connected person

NO

5.

Indicate whether the notification is in respect of a holding of the person referred to in 3 or 4 above or in respect of a non-beneficial interest

3 ABOVE

6.

Description of shares (including class), debentures or derivatives or financial instruments relating to shares

ORDINARY SHARES OF 12.5P EACH

7.

Name of registered shareholders(s) and, if more than one, the number of shares held by each of them

(1) ALAN MITCHELSON 80,467

(2) KEITH COCHRANE 166,204

(3) SCOT SMITH 128,938

(4) STEVE NOON 38,883

8.

State the nature of the transaction

SALE OF SHARES TO SATISFY TAX COSTS FOLLOWING THE EXERCISE OF AN AWARD UNDER THE GROUP LONG TERM INCENTIVE PLAN DATED 25 MARCH 2008 AND EXERCISED ON 25 MARCH 2011.

9.

Number of shares, debentures or financial instruments relating to shares acquired

N/A

10.

Percentage of issued class acquired (treasury shares of that class should not be taken into account when calculating percentage)

N/A

11.

Number of shares, debentures or financial instruments relating to shares disposed

(1) ALAN MITCHELSON 38,583

(2) KEITH COCHRANE 49,870

(3) SCOT SMITH 22,863

(4) STEVE NOON 7,921

12.

Percentage of issued class disposed (treasury shares of that class should not be taken into account when calculating percentage)

N/A

13.

Price per share or value of transaction

1705.5915p

14.

Date and place of transaction

29 MARCH 2011, LONDON

15.

Total holding following notification and total percentage holding following notification (any treasury shares should not be taken into account when calculating percentage)

(1) ALAN MITCHELSON 41,884

(2) KEITH COCHRANE 116,334

(3) SCOT SMITH 106,075

(4) STEVE NOON 30,962

16.

Date issuer informed of transaction

29 MARCH 2011

17.

Date of grant

18.

Period during which or date on which it can be exercised

19.

Total amount paid (if any) for grant of the option

20.

Description of shares or debentures involved (class and number)

21.

Exercise price (if fixed at time of grant) or indication that price is to be fixed at the time of exercise

22.

Total number of shares or debentures over which options held following notification

23.

Any additional information

24

Name of contact and telephone number for queries

FRANCES MCCAW

0141 308 3737

Name and signature of duly authorised officer of issuer responsible for making notification

………………FRANCES MCCAW………………………………………………

Date of notification ……………29 March 2011…………...……………………..