Share Interests

Old Mutual PLC
21 July 2003

                                 OLD MUTUAL PLC

                                Share interests

Old Mutual plc has been informed, by a letter dated 17 July 2003 received today,
that Barclays PLC has a notifiable interest, for the purposes of Part VI of the
UK Companies Act 1985, in 3.66% of the ordinary shares of 10p each in Old Mutual
plc.

The shares are held through the following entities:

                                                                       Holding

Barclays Bank Trust Company Ltd                                            400
Barclays Global Fund Advisors                                          382,375
Barclays Global Investors Australia Ltd                                951,926
Barclays Capital Securities Ltd                                        805,952
Barclays Global Investors Ltd                                      100,608,804
Barclays Global Investors Japan Investment Trust                        95,144
Barclays Global Investors Japan Trust & Banking                        945,279
Barclays Nikko Global Investors Ltd                                    363,775
Barclays Private Bank Ltd                                                3,750
Barclays Global Investors, N.A.                                     24,165,254
Barclays Life Assurance Co Ltd                                      11,884,940
Total Holding                                                      140,207,599





21 July 2003


Enquiries:
James Poole, Investor Relations Director                    [phone]






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