Share Interests

Old Mutual PLC
10 June 2005


                                Share interests


Old Mutual plc (the 'Company') announces that it received the following notices
about significant shareholdings on 10 June 2005:
                    
     •    notice dated 9 June 2005 informing the Company that the notifiable
          interest, for the purposes of Part VI of the UK Companies Act 1985, of
          Barclays PLC in the Company's ordinary share capital at 8 June 2005 
          had reduced below 4.0%, to 3.86%, represented by an aggregate holding 
          of 148,976,432 shares held through the following entities:

     Barclays Bank Trust Company Ltd                             500
     Barclays Capital Securities Ltd                       1,900,706
     Barclays Global Fund Advisors                           728,500
     Barclays Global Investors Australia Ltd               1,462,279
     Barclays Global Investors Japan Ltd                   5,075,638
     Barclays Global Investors Japan Trust & Banking         134,942
     Barclays Global Investors Ltd                       103,375,559
     Barclays Global Investors, N.A.                      28,107,728
     Barclays Life Assurance Co Ltd                        8,114,468
     Barclays Private Bank and Trust Ltd                      27,500
     Barclays Private Bank Ltd                                 3,750
     Gerrard Limited                                          44,862
          
     •    notice dated 10 June 2005 informing the Company that Morley Fund 
          Management Limited (a subsidiary of Aviva plc), and Aviva plc through 
          its interest in Morley Fund Management Limited, had acquired at 8 June 
          2005 a notifiable interest, for the purposes of Part VI of the UK 
          Companies Act1985, in 3.16% of the Company's ordinary share capital, 
          represented by an aggregate holding of 122,014,297 shares held through 
          the following entities:

     BNY Norwich Union Nominees Ltd                       26,603,072
     Chase GA Group Nominees Ltd                          72,595,025
     Chase Nominees Ltd                                    1,712,750
     CUIM Nominees Ltd                                    21,103,450

The total number of shares in issue, from which the above percentages have been
calculated, is 3,855,885,342 shares.

                                                                    10 June 2005

ENQUIRIES:

Old Mutual plc UK
Miranda Bellord     [phone]

Old Mutual plc SA
Nad Pillay          [phone]


For further information about Old Mutual plc visit www.oldmutual.com


                      This information is provided by RNS
            The company news service from the London Stock Exchange