Holding(s) in Company

Old Mutual PLC
06 June 2007


REG- Old Mutual plc Holding(s) in Company

6 June 2007

TR-1:          Notification of major interests in shares


1. Identity of the issuer or the underlying      Old Mutual plc
issuer of existing shares to which voting 
rights are attached        
                        
2. Reason for the notification                    
An acquisition or disposal of voting             Yes
rights                                                                             
An acquisition or disposal of financial 
instruments which may result in the 
acquisition of shares already issued to 
which voting rights are attached
An event changing the breakdown of voting
rights
Other (please specify):

3. Full name of person(s) subject to the         Legal & General Group Plc (L&G)
notification obligation:                                                 
                         
4. Full name of shareholder(s)                   Legal & General Assurance (Pensions
(if different from 3.)                           Management Limited) (PMC)
                                                         
5.Date of the transaction                        1 June 2007
(and date on which the threshold is crossed
or reached if different):                  
                         
6. Date on which issuer notified                 5 June 2007                
                         
7. Threshold(s) that is/are crossed or           From 3% to 4% (L&G)
reached:                                                                   
                         
8. Notified details
A: Voting rights attached to shares

   Class/ type of shares and ISIN Code          Ordinary shares of 10p each   
                                                ISIN GB0007389926 
   
   Number of shares prior to triggering         193,845,480
   action    
   
   Number of voting shares prior to             193,845,480
   triggering action    

   Number of voting rights                      Direct   208,755,705 
                                                Indirect
   
   % of voting rights                           Direct   4.00
                                                Indirect
                                
B:    Financial Instruments

      Total (A+B)                               Number of Voting rights: 208,755,705 
      
      % of voting rights                        4.00%
                                                                                                               
                                                            
9. Chain of controlled undertakings which the voting rights and/or financial 
instruments are effectively held, if applicable

Legal & General Group Plc (Direct and Indirect) (Group)

Legal & General Investment Management (Holdings) Limited
(LGIMH) (Direct and Indirect)

Legal & General Investment Management Limited (Indirect) (LGIM)

Legal & General Group Plc (Direct) (L&G) (208,755,705 - 4.00% = 
LGAS, LGPL & PMC)

Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD) 
(173,286,506 - 3.32% = PMC)                  
              
Legal & General Insurance Holdings Limited (Direct)
(LGIH)

Legal & General Assurance (Pensions Management) Limited  (PMC) 
(173,286,506 - 3.32% = PMC)                              

Legal & General Assurance Society Limited  (LGAS & LGPL)
                                                                                                                        
Legal & General Pensions Limited (Direct)  (LGPL)

10. Name of proxy holder                        N/A                           
              
11. Number of voting rights proxy holder        N/A
will cease to hold                                                          
              
12. Date on which proxy holder will cease       N/A
to hold voting rights                                                      
             
13. Additional information                     Notification using the total 
                                               voting rights figure of
                                               5,212,750,231                                      
                                                         
14. Contact name                               Martin Charles Murray                  
                                               (Group Company Secretary, 
                                                Old Mutual plc)

15. Contact telehone number                    020 7002 7209
                                                                    
              
                                                                                           
             







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