| 
                 
                    Closing price on 9/27/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    35.80 | 
                 
                
                    | High | 
                    36.10 | 
                 
                
                    | Low | 
                    33.90 | 
                     
                
                    | Volume | 
                    782,400 | 
                                 
                
                    | Split-adjusted Price | 
                    34.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/27/2017
             | 
            
                -1.30 / -3.63%
             |             
            
                35.80
             |           
            
                36.10
             |               
            
                33.90
             |                           
            
                34.50
             | 
            
                34.99
             |                     
            
                34.50
             |                                 
            
                782,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2017
             | 
            
                +0.20 / +0.56%
             |             
            
                35.60
             |           
            
                36.30
             |               
            
                35.40
             |                           
            
                35.80
             | 
            
                35.89
             |                     
            
                35.80
             |                                 
            
                566,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2017
             | 
            
                +0.40 / +1.14%
             |             
            
                35.10
             |           
            
                36.00
             |               
            
                35.00
             |                           
            
                35.60
             | 
            
                35.62
             |                     
            
                35.60
             |                                 
            
                620,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2017
             | 
            
                +0.40 / +1.15%
             |             
            
                34.70
             |           
            
                35.30
             |               
            
                34.70
             |                           
            
                35.20
             | 
            
                35.14
             |                     
            
                35.20
             |                                 
            
                562,223
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2017
             | 
            
                +0.10 / +0.29%
             |             
            
                34.70
             |           
            
                35.10
             |               
            
                34.30
             |                           
            
                34.80
             | 
            
                34.69
             |                     
            
                34.80
             |                                 
            
                614,510
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2017
             | 
            
                -0.20 / -0.57%
             |             
            
                34.90
             |           
            
                34.90
             |               
            
                34.10
             |                           
            
                34.70
             | 
            
                34.41
             |                     
            
                34.70
             |                                 
            
                1,075,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2017
             | 
            
                -0.30 / -0.85%
             |             
            
                35.20
             |           
            
                35.20
             |               
            
                34.70
             |                           
            
                34.90
             | 
            
                34.89
             |                     
            
                34.90
             |                                 
            
                660,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2017
             | 
            
                -0.60 / -1.68%
             |             
            
                35.70
             |           
            
                36.40
             |               
            
                34.90
             |                           
            
                35.20
             | 
            
                35.75
             |                     
            
                35.20
             |                                 
            
                901,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2017
             | 
            
                +0.60 / +1.70%
             |             
            
                35.50
             |           
            
                36.50
             |               
            
                35.10
             |                           
            
                35.80
             | 
            
                35.87
             |                     
            
                35.80
             |                                 
            
                965,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2017
             | 
            
                +3.20 / +10.00%
             |             
            
                32.00
             |           
            
                35.20
             |               
            
                32.00
             |                           
            
                35.20
             | 
            
                33.67
             |                     
            
                35.20
             |                                 
            
                2,503,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2017
             | 
            
                -1.00 / -3.03%
             |             
            
                32.90
             |           
            
                33.10
             |               
            
                31.90
             |                           
            
                32.00
             | 
            
                32.39
             |                     
            
                32.00
             |                                 
            
                221,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2017
             | 
            
                +2.40 / +7.84%
             |             
            
                30.60
             |           
            
                33.00
             |               
            
                30.50
             |                           
            
                33.00
             | 
            
                31.86
             |                     
            
                33.00
             |                                 
            
                1,033,323
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2017
             | 
            
                -0.30 / -0.97%
             |             
            
                30.80
             |           
            
                30.90
             |               
            
                30.50
             |                           
            
                30.60
             | 
            
                30.66
             |                     
            
                30.60
             |                                 
            
                111,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2017
             | 
            
                -0.60 / -1.90%
             |             
            
                31.40
             |           
            
                31.50
             |               
            
                30.90
             |                           
            
                30.90
             | 
            
                31.08
             |                     
            
                30.90
             |                                 
            
                165,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2017
             | 
            
                +0.50 / +1.61%
             |             
            
                30.90
             |           
            
                31.60
             |               
            
                30.40
             |                           
            
                31.50
             | 
            
                31.10
             |                     
            
                31.50
             |                                 
            
                326,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2017
             | 
            
                +0.90 / +2.99%
             |             
            
                29.80
             |           
            
                31.10
             |               
            
                29.70
             |                           
            
                31.00
             | 
            
                30.67
             |                     
            
                31.00
             |                                 
            
                436,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2017
             | 
            
                +0.80 / +2.73%
             |             
            
                29.20
             |           
            
                30.10
             |               
            
                29.00
             |                           
            
                30.10
             | 
            
                29.69
             |                     
            
                30.10
             |                                 
            
                425,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2017
             | 
            
                -1.10 / -3.62%
             |             
            
                30.40
             |           
            
                30.40
             |               
            
                29.20
             |                           
            
                29.30
             | 
            
                29.43
             |                     
            
                29.30
             |                                 
            
                333,402
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2017
             | 
            
                -0.50 / -1.62%
             |             
            
                30.90
             |           
            
                30.90
             |               
            
                30.30
             |                           
            
                30.40
             | 
            
                30.46
             |                     
            
                30.40
             |                                 
            
                181,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2017
             | 
            
                +2.80 / +9.96%
             |             
            
                28.10
             |           
            
                30.90
             |               
            
                28.10
             |                           
            
                30.90
             | 
            
                30.09
             |                     
            
                30.90
             |                                 
            
                1,487,298
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2017
             | 
            
                -0.40 / -1.40%
             |             
            
                28.40
             |           
            
                28.50
             |               
            
                27.90
             |                           
            
                28.10
             | 
            
                28.13
             |                     
            
                28.10
             |                                 
            
                185,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2017
             | 
            
                +1.00 / +3.64%
             |             
            
                27.50
             |           
            
                28.50
             |               
            
                27.10
             |                           
            
                28.50
             | 
            
                27.94
             |                     
            
                28.50
             |                                 
            
                349,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2017
             | 
            
                -0.50 / -1.79%
             |             
            
                28.00
             |           
            
                28.40
             |               
            
                27.00
             |                           
            
                27.50
             | 
            
                27.70
             |                     
            
                27.50
             |                                 
            
                344,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2017
             | 
            
                -0.80 / -2.78%
             |             
            
                28.80
             |           
            
                28.80
             |               
            
                27.50
             |                           
            
                28.00
             | 
            
                28.08
             |                     
            
                28.00
             |                                 
            
                335,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2017
             | 
            
                +0.30 / +1.05%
             |             
            
                28.50
             |           
            
                29.00
             |               
            
                28.40
             |                           
            
                28.80
             | 
            
                28.70
             |                     
            
                28.80
             |                                 
            
                537,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2017
             | 
            
                +1.50 / +5.56%
             |             
            
                27.00
             |           
            
                28.60
             |               
            
                26.90
             |                           
            
                28.50
             | 
            
                27.93
             |                     
            
                28.50
             |                                 
            
                605,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2017
             | 
            
                -0.60 / -2.17%
             |             
            
                27.60
             |           
            
                27.70
             |               
            
                26.40
             |                           
            
                27.00
             | 
            
                26.91
             |                     
            
                27.00
             |                                 
            
                405,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2017
             | 
            
                -0.90 / -3.16%
             |             
            
                28.50
             |           
            
                28.60
             |               
            
                27.00
             |                           
            
                27.60
             | 
            
                27.60
             |                     
            
                27.60
             |                                 
            
                701,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2017
             | 
            
                -2.40 / -7.77%
             |             
            
                30.80
             |           
            
                31.00
             |               
            
                28.10
             |                           
            
                28.50
             | 
            
                29.04
             |                     
            
                28.50
             |                                 
            
                1,032,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2017
             | 
            
                -0.20 / -0.64%
             |             
            
                31.20
             |           
            
                33.90
             |               
            
                30.80
             |                           
            
                30.90
             | 
            
                32.25
             |                     
            
                30.90
             |                                 
            
                1,002,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |