Holding(s) in Company

2nd Dec 2009 14:03

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

attached: Severn Trent Plc

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):

3. Full name of person(s) subject to the Legal & General

Group Plc (Lnotification obligation: &G) 4. Full name of shareholder(s) Legal & General Assurance (if different from 3.): (Pensions Management) Limited (PMC)

5. Date of the transaction and date on which the threshold is crossed or 30 November 2009 reached: 6. Date on which issuer notified: 2

December 2009

7. Threshold(s) that is/are crossed or

reached: From 4% - 3% (L&G) 8. Notified details:

A: Voting rights attached to shares Class/type Situation previous Resulting situation after the triggering transaction of to the triggering shares transaction Number Number Number of voting % of voting rights if possible of of rights using Shares Voting Number the ISIN Rights of shares CODE Direct Indirect Direct Indirect GB00B1FH8J72 9,834,438 9,403,273 9,403,273 3.97 ORD (As at 7/08/09) GBP 0.9789

B: Qualifying Financial Instruments Resulting situation after the triggering transaction

Number of voting rights that may be Type of financial Expiration Exercise/ acquired if the % of voting instrument date Conversion Period instrument is rights exercised/ converted. C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of Exercise price Expiration Exercise/ Number of voting rights % of voting rights financial date Conversion instrument refers to instrument period Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 9,403,273 3.97

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)

Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect) Legal & General Investment Management Limited

(Indirect) (LGIM)

Legal & General Group Plc (Direct) (L&G) (9,403,273 -3.97 % = LGAS, LGPL & PMC)

Legal & General Investment Management (Holdings) Legal & General Insurance Limited (Direct) (LGIMHD) (8,571,057 -3.62 % = Holdings Limited (Direct)

PMC) (LGIH)

Legal & General Assurance (Pensions Management) Legal & General Assurance Limited (PMC) (8,571,057 -3.62 % = PMC) Society Limited (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 cease N/A

to hold:

12. Date on which proxy holder will cease to hold N/A

voting rights: Notification using the total voting rights figure of 13. Additional information: 236,575,900 14. Contact name: Aline Campbell 15. Contact telephone number: 0121 722 4414

vendor

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Related Shares:

Severn Trent