Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES                                                        
                                                                                                      
1. Identity of the issuer or the                  Wincanton plc                                       
underlying issuer                                                                                     
of existing shares to which voting                                                                    
rights are                                                                                            
attached:                                                                                             
                                                                                                      
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                        No              
which may result in the acquisition of shares already issued to                                       
which voting rights are attached                                                                      
                                                                                                      
An acquisition or disposal of instruments with similar economic                       Yes             
effect to qualifying financial instruments                                                            
                                                                                                      
An event changing the breakdown of voting rights                                      No              
                                                                                                      
Other (please                                                                         No              
specify):                                                                                             
                                                                                                      
3. Full name of person(s) subject           Henderson Global Investors                                
to the                                                                                                
notification obligation:                                                                              
                                                                                                      
4. Full name of shareholder(s)              N/A                                                       
(if different from 3.):                                                                               
                                                                                                      
5. Date of the transaction and              05 December 2012                                          
date on                                                                                               
which the threshold is crossed or                                                                     
reached:                                                                                              
                                                                                                      
6. Date on which issuer notified:           07 December 2012                                          
                                                                                                      
7. Threshold(s) that is/are                 11%                                                       
crossed or                                                                                            
reached:                                                                                              
                                                                                                      
8. Notified details:                                                                                  
                                                                                                      
A: Voting rights attached to shares                                                                   
                                                                                                      
Class/type   Situation previous            Resulting situation after the triggering                   
of           to the triggering             transaction                                                
shares       transaction                                                                              
                                                                                                      
             Number      Number            Number      Number of voting     % of voting rights        
if possible  of          of                of shares   rights               x                         
using        Shares      Voting                                                                       
the ISIN                 Rights                        Direct     Indirect  Direct            Indirect
CODE                                                   xi         xii                                 
                                                                                                      
Ordinary     9,535,332   9,535,332                                9,506,626                   7.80    
Shares of 10                                                                                          
pence each                                                                                            
                                                                                                      
GB0030329360                                                                                          
                                                                                                      
B: Qualifying Financial Instruments                                                                   
                                                                                                      
Resulting situation after the triggering transaction                                                  
                                                                                                      
Type of financial  Expiration  Exercise/                    Number of voting             % of voting  
instrument                     Conversion Period            rights that may be           rights       
                   date                                     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                                                                                           
                                                                                                      
Resulting situation after the triggering transaction                                                  
                                                                                                      
Type of         Exercise Expiration  Exercise/         Number of voting         % of voting           
financial       price    date        Conversion        rights instrument        rights                
instrument                           period            refers to                                      
                                                                                                      
CFD             N/A      N/A         N/A               2,667,078                Nominal          Delta
                                                                                                      
                                                                                2.19             N/A  
                                                                                                      
Total (A+B+C)                                                                                         
                                                                                                      
Number of voting rights                        Percentage of voting rights                            
                                                                                                      
12,173,704                                     9.99%                                                  

9. Chain of controlled undertakings through which the voting rights and/or the 
financial instruments are effectively held, if applicable:                     
                                                                               
N/A                                                                            
                                                                               
Proxy Voting:                                                                  
                                                                               
10. Name of the proxy holder:                     N/A                          
                                                                               
11. Number of voting rights proxy holder will     N/A                          
cease                                                                          
to hold:                                                                       
                                                                               
12. Date on which proxy holder will cease to hold N/A                          
voting rights:                                                                 
                                                                               
                                                                               
13. Additional information:            N/A                                     
                                                                               
14. Contact name:                      Steve Williams, Company Secretary       
                                                                               
15. Contact telephone number:          01249 710 000                           
                                                                               
16. Authorised by:                     Steve Williams, Company Secretary       
                                                                               
                                       7 December 2012