Share Interests

Old Mutual PLC
17 February 2006

                                 Old Mutual plc

                                 Share interests

Old Mutual plc (the 'Company') announces that, as a consequence of the issue of
246,165,756 shares in the Company on 16 February 2006, the following changes in
notifiable interests, for the purposes of Part VI of the UK Companies Act 1985,
have taken place in its current issued ordinary share capital:

• the holding of Old Mutual Asset Managers (South Africa) (Pty) Limited
of 206,985,671 shares for Group employee benefit trusts now represents 3.86% of
the Company's current issued ordinary share capital;

• the holding of FMR Corp. and its direct and indirect subsidiaries and
Fidelity International Limited and its direct and indirect subsidiaries of
205,580,850 shares in the Company now represents 3.84% of the Company's current
issued ordinary share capital.

The above details of percentage shareholdings are based upon 5,356,271,599
shares, being the total number of shares in the Company in issue at 16 February
2006, and upon the latest details of holdings notified to the Company by each of
the shareholders concerned.

                                                                17 February 2006



ENQUIRIES:


Old Mutual plc
Malcolm Bell - Investor Relations (UK)         + 44 (0) 20 7002 7166
Miranda Bellord - Media Relations (UK)         + 44 (0) 20 7002 7133
Deward Serfontein - Investor Relations (SA)    + 27 21 509 8709
Nad Pillay - Media Relations (SA)              + 27 11 523 9612

College Hill
Alex Sandberg                                  [phone]
Tony Friend                                    [phone]


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




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