Transaction in Own Shares

Wm Morrison Supermarkets Plc ("the Company") announces that on 20 August 2012 it purchased through Jefferies International Limited 500,000 ordinary shares at an average price of 285.53 pence per share.

These shares will be cancelled.

In accordance with the provisions of Listing Rule 12.6.4 the Company announces that on 20 August 2012 it transferred 560,242 ordinary shares from its treasury account. This was for the purpose of an all employee Sharesave scheme.

Following the above, the Company holds 5,652,638 ordinary shares as treasury shares. The total number of ordinary shares in issue is 2,425,585,681 (excluding ordinary shares held as treasury shares).

The total number of voting rights in the Company, excluding treasury shares, is 2,425,585,681. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in Wm Morrison Supermarkets Plc under the FSA's Disclosure and Transparency Rules.