Weir Regulatory News (WEIR)

Financial Services Authority

+------------------------------------------------------------------------------+
|TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES |
+------------------------------------------------------------------------------+

+----------------------------------------------+-------------------------------+
|1. Identity of the issuer or the underlying | |
|issuer | |
|of existing shares to which voting rights are | Weir Group Plc |
|attached: | |
|  | |
+----------------------------------------------+-------------------------------+
|2. Reason for the notification (please tick the appropriate box or boxes): |
+---------------------------------------------------------------------+--------+
|An acquisition or disposal of voting rights | Yes |
+---------------------------------------------------------------------+--------+
|  | |
|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):   |   |
|  | |
+--------------------------------------+------------------------------+--------+
| | Legal & General Group Plc (Group) |
|3. Full name of person(s) subject to |   |
|the | Legal & General Investment Management |
|notification obligation: | Limited (LGIM) |
| |   |
| | Legal & General Group Plc (L&G) |
+--------------------------------------+---------------------------------------+
|4. Full name of shareholder(s) | N/A |
|(if different from 3.): | |
+--------------------------------------+---------------------------------------+
|  | 21(st) March 2012 (LGIM) |
|5. Date of the transaction and date on|   |
|which the threshold is crossed or | 16(th) May 2012 (L&G) |
|reached: | |
+--------------------------------------+---------------------------------------+
|6. Date on which issuer notified: | 17 May 2012 |
+--------------------------------------+---------------------------------------+
| | Group (Below 5%) |
|7. Threshold(s) that is/are crossed or|   |
|reached: | LGIM (Below 5%) |
|  |   |
| | L&G (From 4% to 3%) |
+--------------------------------------+---------------------------------------+

+--------------------------------------------------------------------------------+
|8. Notified details: |
|  |
+--------------------------------------------------------------------------------+
|A: Voting rights attached to shares |
+----------+---------------------+-----------------------------------------------+
|Class/type| Situation previous | Resulting situation after the triggering |
|of | to the triggering | transaction |
|shares | transaction | |
| +------+--------------+---------+---------------------+---------------+
|if |Number| Number |   | Number of voting | % of  voting |
|possible | of | of | Number | rights | rights |
|using |Shares| Voting |of shares+----------+----------+------+--------+
|the ISIN | | Rights | | Direct | Indirect |Direct|Indirect|
|CODE | | | | | | | |
+----------+------+--------------+---------+----------+----------+------+--------+
| |  8,883,071 | | | 1,487,771| | |
| | (L&G) | | |          | | |
|Ordinary +---------------------+   | |          | | |
|12.5p |  10,646,643 |9,978,391| 8,490,620|          |3.99% | 0.70% |
| | (LGIM) |   | |          | | |
| +---------------------+ | |  | | |
| | (As on 03/02/2012) | | | | | |
+----------+---------------------+---------+----------+----------+------+--------+

+--------------------------------------------------------------------------------+
|B: Qualifying Financial Instruments |
+--------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction |
+------------+----------+-------------------+----------------------+-------------+
|  |  |  |Number of voting |  |
|Type of |Expiration|Exercise/ |rights that may be |% of voting |
|financial |date |Conversion Period |acquired if the |rights |
|instrument | | |instrument is | |
| | | |exercised/ converted. | |
+------------+----------+-------------------+----------------------+-------------+
|  |  |  |  |  |
+------------+----------+-------------------+----------------------+-------------+

+--------------------------------------------------------------------------------+
|C: Financial Instruments with similar economic effect to Qualifying Financial |
|Instruments |
+--------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction |
+-----------+--------+----------+----------+----------------------+--------------+
|  |  |  |  |  |  |
|Type of|Exercise|Expiration|Exercise/ |Number of voting|% of voting|
|financial |price |date |Conversion|rights instrument|rights |
|instrument | | |period |refers to |  |
|  | | | |  | |
+-----------+--------+----------+----------+----------------------+-------+------+
| | | | |  |Nominal|Delta |
|  |  |  |  |  +-------+------+
| | | | | |  |  |
+-----------+--------+----------+----------+----------------------+-------+------+

+--------------------------------------------------------------------------------+
|Total (A+B+C) |
+---------------------------------+----------------------------------------------+
|Number of voting rights |Percentage of voting rights |
+---------------------------------+----------------------------------------------+
|  8,490,620 | 3.99% |
| (L&G) | |
+---------------------------------+----------------------------------------------+
|   | |
| 9,978,391.00 | 4.696% |
| (LGIM) |   |
|   | |
+---------------------------------+----------------------------------------------+

+------------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and/or the|
|financial instruments are effectively held, if applicable: |
+------------------------------------------------------------------------------+
|  |
|Legal & General Group Plc (Direct and Indirect) (Group) (Below   |
|5% = Total Position) |
| |
|Legal & General Investment Management (Holdings) Limited   |
|(LGIMH) (Direct and Indirect)  ( Below 5% = Total Position) |
| |
|Legal & General Investment Management Limited (Indirect)   |
|(LGIM) ( Below 5% = Total Position) |
| |
|Legal & General Group Plc (Direct) (L&G) ( 8,490,620 - 3.99%=LGAS, LGPL & PMC)|
| |
|Legal & General Investment Legal & General Insurance Holdings |
|Management (Holdings) Limited Limited (Direct) (LGIH) |
|(Direct) (LGIMHD) |
| |
|Legal & General Assurance (Pensions Legal & General Assurance Society Limited|
|Management) Limited  (PMC)  (LGAS & LGPL) |
| |
|  Legal & General Pensions Limited (Direct)|
|  (LGPL) |
| |
+------------------------------------------------------------------------------+

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

+-----------------------------+------------------------------------------------+
| | Notification using the total voting rights |
|13. Additional information: | figure of  212,503,081 |
| | |
| | LGIM threshold crossed 21 March 2012, but |
| | disclosed 17 May due to reporting error. |
+-----------------------------+------------------------------------------------+
|14. Contact name: | Paul Toon (LGIM) |
+-----------------------------+------------------------------------------------+
|15. Contact telephone number:| 020 3124 3854 |
+-----------------------------+------------------------------------------------+



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Source: The Weir Group PLC via Thomson Reuters ONE
[HUG#1613130]