| 
                 
                    Closing price on 3/2/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.50 | 
                 
                
                    | High | 
                    25.50 | 
                 
                
                    | Low | 
                    24.50 | 
                     
                
                    | Volume | 
                    131,140 | 
                                 
                
                    | Split-adjusted Price | 
                    24.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/2/2017
             | 
            
                -0.10 / -0.40%
             |             
            
                24.50
             |           
            
                25.50
             |               
            
                24.50
             |                           
            
                24.90
             | 
            
                24.86
             |                     
            
                24.90
             |                                 
            
                131,140
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2017
             | 
            
                +1.10 / +4.60%
             |             
            
                23.60
             |           
            
                25.00
             |               
            
                23.60
             |                           
            
                25.00
             | 
            
                24.51
             |                     
            
                25.00
             |                                 
            
                220,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2017
             | 
            
                +0.40 / +1.70%
             |             
            
                23.20
             |           
            
                24.00
             |               
            
                23.20
             |                           
            
                23.90
             | 
            
                24.00
             |                     
            
                23.90
             |                                 
            
                205,420
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2017
             | 
            
                +1.60 / +7.31%
             |             
            
                22.20
             |           
            
                23.50
             |               
            
                21.50
             |                           
            
                23.50
             | 
            
                23.27
             |                     
            
                23.50
             |                                 
            
                220,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2017
             | 
            
                -0.20 / -0.90%
             |             
            
                22.00
             |           
            
                22.90
             |               
            
                20.00
             |                           
            
                21.90
             | 
            
                20.30
             |                     
            
                21.90
             |                                 
            
                291,510
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2017
             | 
            
                -0.40 / -1.78%
             |             
            
                23.40
             |           
            
                23.40
             |               
            
                21.50
             |                           
            
                22.10
             | 
            
                22.79
             |                     
            
                22.10
             |                                 
            
                115,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2017
             | 
            
                +2.00 / +9.76%
             |             
            
                20.50
             |           
            
                22.50
             |               
            
                19.50
             |                           
            
                22.50
             | 
            
                22.33
             |                     
            
                22.50
             |                                 
            
                640,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2017
             | 
            
                +1.80 / +9.63%
             |             
            
                16.90
             |           
            
                20.50
             |               
            
                16.90
             |                           
            
                20.50
             | 
            
                17.48
             |                     
            
                20.50
             |                                 
            
                527,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2017
             | 
            
                -2.00 / -9.66%
             |             
            
                18.70
             |           
            
                18.70
             |               
            
                18.70
             |                           
            
                18.70
             | 
            
                18.70
             |                     
            
                18.70
             |                                 
            
                203,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2017
             | 
            
                -2.20 / -9.61%
             |             
            
                20.70
             |           
            
                20.70
             |               
            
                20.70
             |                           
            
                20.70
             | 
            
                20.70
             |                     
            
                20.70
             |                                 
            
                842,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2017
             | 
            
                -2.50 / -9.84%
             |             
            
                25.30
             |           
            
                25.30
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                22.90
             |                     
            
                22.90
             |                                 
            
                1,153,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2017
             | 
            
                +2.30 / +9.96%
             |             
            
                22.90
             |           
            
                25.40
             |               
            
                20.80
             |                           
            
                25.40
             | 
            
                25.14
             |                     
            
                25.40
             |                                 
            
                2,322,919
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2017
             | 
            
                +2.10 / +10.00%
             |             
            
                22.00
             |           
            
                23.10
             |               
            
                21.00
             |                           
            
                23.10
             | 
            
                23.09
             |                     
            
                23.10
             |                                 
            
                1,500,412
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2017
             | 
            
                -1.90 / -8.30%
             |             
            
                22.50
             |           
            
                23.40
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                22.90
             |                     
            
                21.00
             |                                 
            
                12,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2017
             | 
            
                -0.40 / -1.72%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                22.90
             |                           
            
                22.90
             | 
            
                23.22
             |                     
            
                22.90
             |                                 
            
                13,712
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2017
             | 
            
                -0.80 / -3.32%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                22.10
             |                           
            
                23.30
             | 
            
                23.25
             |                     
            
                23.30
             |                                 
            
                19,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.10
             |                           
            
                24.10
             | 
            
                24.57
             |                     
            
                24.10
             |                                 
            
                33,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2017
             | 
            
                +1.00 / +4.33%
             |             
            
                23.10
             |           
            
                24.80
             |               
            
                23.10
             |                           
            
                24.10
             | 
            
                24.12
             |                     
            
                24.10
             |                                 
            
                12,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2017
             | 
            
                -0.90 / -3.75%
             |             
            
                24.20
             |           
            
                24.20
             |               
            
                23.10
             |                           
            
                23.10
             | 
            
                23.21
             |                     
            
                23.10
             |                                 
            
                10,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2017
             | 
            
                -0.50 / -2.04%
             |             
            
                24.50
             |           
            
                25.00
             |               
            
                24.00
             |                           
            
                24.00
             | 
            
                24.21
             |                     
            
                24.00
             |                                 
            
                14,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2017
             | 
            
                +0.60 / +2.51%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.51
             |                     
            
                24.50
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2017
             | 
            
                -1.90 / -7.36%
             |             
            
                26.00
             |           
            
                28.30
             |               
            
                23.90
             |                           
            
                23.90
             | 
            
                27.44
             |                     
            
                23.90
             |                                 
            
                49,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2017
             | 
            
                +1.20 / +4.88%
             |             
            
                23.80
             |           
            
                25.80
             |               
            
                23.80
             |                           
            
                25.80
             | 
            
                25.78
             |                     
            
                25.80
             |                                 
            
                11,430
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2017
             | 
            
                +1.40 / +6.03%
             |             
            
                23.00
             |           
            
                24.60
             |               
            
                22.00
             |                           
            
                24.60
             | 
            
                22.83
             |                     
            
                24.60
             |                                 
            
                37,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2017
             | 
            
                +0.90 / +4.04%
             |             
            
                23.00
             |           
            
                23.20
             |               
            
                21.70
             |                           
            
                23.20
             | 
            
                21.98
             |                     
            
                23.20
             |                                 
            
                13,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2017
             | 
            
                -2.40 / -9.72%
             |             
            
                24.00
             |           
            
                24.00
             |               
            
                22.30
             |                           
            
                22.30
             | 
            
                22.98
             |                     
            
                22.30
             |                                 
            
                21,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2017
             | 
            
                -0.50 / -1.98%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                22.70
             |                           
            
                24.70
             | 
            
                25.16
             |                     
            
                24.70
             |                                 
            
                24,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2017
             | 
            
                -2.40 / -8.70%
             |             
            
                27.40
             |           
            
                29.00
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.34
             |                     
            
                25.20
             |                                 
            
                20,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2017
             | 
            
                -2.50 / -8.31%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                27.40
             |                           
            
                27.60
             | 
            
                27.94
             |                     
            
                27.60
             |                                 
            
                32,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2017
             | 
            
                -2.90 / -8.79%
             |             
            
                33.00
             |           
            
                33.60
             |               
            
                30.10
             |                           
            
                30.10
             | 
            
                33.00
             |                     
            
                30.10
             |                                 
            
                29,310
             |  
            
                 
             |                                                              
             
    
         
    
    
 |