Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES                                            
                                                                                          
                                                                                          
                                                                                          
1. Identity of the issuer or the underlying issuer                                        
of existing shares to which voting rights are                  Lancashire Holdings Limited
attached:ii                                                                               
                                                                                          
2. Reason for the notification (please tick the appropriate box or boxes):                 
                                                                                          
An acquisition or disposal of voting rights                                               
                                                                                       Yes
                                                                                          
                                                                                          
An acquisition or disposal of qualifying financial instruments which may result           
in the acquisition of shares already issued to which voting rights are attached        No 
                                                                                          
                                                                                          
                                                                                          
An acquisition or disposal of instruments with similar economic effect to                 
qualifying financial instruments                                                       No 
                                                                                          
                                                                                          
                                                                                          
An event changing the breakdown of voting rights                                          
                                                                                       No 
                                                                                          
                                                                                          
Other (please specify):                                                                No 
                                                                                          
3. Full name of person(s) subject to the                   William Blair & Company, LLC   
notification obligation:iii                                                               
                                                                                          
4. Full name of shareholder(s)                                                            
 (if different from 3.):iv                                                                
                                                                                          
5. Date of the transaction and date on                                                    
which the threshold is crossed or                          June 20, 2012                  
reached: v                                                                                
                                                                                          
6. Date on which issuer notified:                          June 25, 2012                  
                                                                                          
7. Threshold(s) that is/are crossed or                     Exceeding 5% threshold         
reached: vi, vii                                                                          
                                                                                          


 

8. Notified details:                                                                                 
                                                                                                     
A: Voting rights attached to shares viii, ix                                                         
                                                                                                     
Class/type   Situation previous            Resulting situation after the triggering transaction      
of           to the triggering                                                                       
shares       transaction                                                                             
                                                                                                     
                                                                                                     
if possible  Number           Number       Number    Number of voting         % of  voting rights x  
using        of               of           of shares rights                                          
the ISIN     Shares           Voting                                                                 
CODE                          Rights                                                                 
                                           Direct    Direct xi   Indirect xii Direct   Indirect      
                                                                                                     
                                                                                                     
BMG5361W1047 8,044,799          8,044,799  8,177,998  8,177,998                5.05%                 
                                                                                                     
                                                                                                     
                                                                                                     
B: Qualifying Financial Instruments                                                                  
                                                                                                     
Resulting situation after the triggering transaction                                                 
                                                                                                     
Type of        Expiration          Exercise/            Number of voting            % of voting      
financial      date xiii           Conversion Period    rights that may be          rights           
instrument                         xiv                  acquired if the                              
                                                        instrument is                                
                                                        exercised/ converted.                        
                                                                                                     
N/A            N/A                 N/A                  N/A                         N/A              
                                                                                                     
                                                                                                     
                                                                                                     
C: Financial Instruments with similar economic effect to Qualifying Financial                        
Instruments xv, xvi                                                                                  
                                                                                                     
Resulting situation after the triggering transaction                                                 
                                                                                                     
Type of       Exercise price  Expiration Exercise/  Number of voting rights      % of voting rights  
financial                     date xvii  Conversion instrument refers to         xix, xx             
instrument                               period                                                      
                                         xviii                                                       
                                                                                                     
                                                                                 Nominal Delta       
N/A           N/A             N/A        N/A                                                         
                                                    N/A                          N/A     N/A         
                                                                                                     
                                                                                                     
                                                                                                     
Total (A+B+C)                                                                                        
                                                                                                     
Number of voting rights                     Percentage of voting rights                              
                                                                                                     
                 8,177,998                                           5.05%                           
                                                                                                     


9. Chain of controlled undertakings through which the voting rights and/or the          
financial instruments are effectively held, if applicable: xxi                          
                                                                                        
William Blair& Company, L.L.C., (William Blair) is an investment adviser                
registered under the U.S. Investment Advisers Act of 1940. As such, pursuant to         
advisory contracts, William Blair has the power to purchase and sell securities         
on behalf of its clients and the power to vote for most clients. Persons other          
than William Blair are entitled to receive all dividends from, and proceeds             
from the sale of all securities reported hereunder.                                     
                                                                                        
                                                                                      
                                                                                        
Proxy Voting:                                                                           
                                                                                        
10. Name of the proxy holder:                         William Blair & Company, L.L.C.   
                                                                                        
11. Number of voting rights proxy holder will cease                 N/A                 
to hold:                                                                                
                                                                                        
12. Date on which proxy holder will cease to hold                   N/A                 
voting rights:                                                                          
                                                                                    
13. Additional information:                                                             
                                                                                        
14. Contact name:                                 Walter R. Randall, Jr.                
                                                                                        
15. Contact telephone number:                     [phone]