Holding(s) in Company

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:

Wolseley plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issues 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 the notification obligation:

Morgan Stanley Investment Management Limited

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

Various clients for which MSIM has voting authority

5. Date of the transaction and date on which the threshold is crossed or reached:

6 March 2009

6. Date on which issuer notified:

10 March 2009

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

5% 

8. Notified details:

A: Voting rights attached to shares

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

Direct

Direct

Indirect

Direct

Indirect

Ord 25p

Below 5%

Below 5%

38,378,258

38,378,258

5.79%

GB0009764027

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period/ Date

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

% of voting rights

N/A

Total (A+B)

Number of voting rights

% of voting rights

38,378,258

5.79%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Morgan Stanley Investment Management Limited 38,378,258 5.79%

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

Notification using the total voting rights figure of

661,988,537

14. Contact name:

Michelle Hewitt

15. Contact telephone number:

020 7425 8677