TO:      Regulatory Information Service                                     
                                                                            
         PR Newswire                                                        
                                                                            
RE:      PARAGRAPH 12.6.4 OF THE LISTING RULES                              

Diageo plc - Transaction in Own Shares

Diageo plc (the "Company") announces that today, it released from treasury 9,852 ordinary shares of 28 101/108 pence each ("Ordinary Shares"), to satisfy grants made under employee share plans. The average price at which these Ordinary Shares were released from treasury was 1080.32 pence per share.

Following this release, the Company holds 248,462,425 Ordinary Shares as treasury shares and the total number of Ordinary Shares in issue (excluding shares held as treasury shares) is 2,505,653,560.

Paul Tunnacliffe

Company Secretary

2 July 2012