| 
                 
                    Closing price on 8/13/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.10 | 
                 
                
                    | High | 
                    2.20 | 
                 
                
                    | Low | 
                    2.00 | 
                     
                
                    | Volume | 
                    1,141,100 | 
                                 
                
                    | Split-adjusted Price | 
                    2.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/13/2018
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.20
             | 
            
                2.10
             |                     
            
                2.20
             |                                 
            
                1,141,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                634,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.15
             |                     
            
                2.10
             |                                 
            
                262,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2018
             | 
            
                -0.10 / -4.35%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.22
             |                     
            
                2.20
             |                                 
            
                319,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2018
             | 
            
                +0.20 / +9.52%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.30
             | 
            
                2.18
             |                     
            
                2.30
             |                                 
            
                824,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2018
             | 
            
                -0.20 / -8.70%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                815,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2018
             | 
            
                +0.10 / +4.55%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.30
             | 
            
                2.20
             |                     
            
                2.30
             |                                 
            
                394,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2018
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.13
             |                     
            
                2.20
             |                                 
            
                697,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.15
             |                     
            
                2.10
             |                                 
            
                710,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2018
             | 
            
                -0.20 / -8.70%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.13
             |                     
            
                2.10
             |                                 
            
                1,217,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2018
             | 
            
                -0.10 / -4.17%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.29
             |                     
            
                2.30
             |                                 
            
                595,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.40
             | 
            
                2.31
             |                     
            
                2.40
             |                                 
            
                491,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2018
             | 
            
                +0.10 / +4.35%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.40
             | 
            
                2.30
             |                     
            
                2.40
             |                                 
            
                553,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.28
             |                     
            
                2.30
             |                                 
            
                751,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2018
             | 
            
                -0.20 / -8.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.34
             |                     
            
                2.30
             |                                 
            
                1,192,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2018
             | 
            
                +0.10 / +4.17%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.50
             |                     
            
                2.50
             |                                 
            
                1,629,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2018
             | 
            
                +0.20 / +9.09%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                2.40
             |                                 
            
                245,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2018
             | 
            
                +0.20 / +10.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                298,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/18/2018
             | 
            
                +0.10 / +5.26%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                347,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2018
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.92
             |                     
            
                1.90
             |                                 
            
                233,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.97
             |                     
            
                2.00
             |                                 
            
                480,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2018
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.02
             |                     
            
                2.00
             |                                 
            
                555,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2018
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.09
             |                     
            
                2.10
             |                                 
            
                393,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2018
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                602,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.11
             |                     
            
                2.10
             |                                 
            
                152,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                481,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2018
             | 
            
                +0.10 / +4.76%
             |             
            
                2.00
             |           
            
                2.30
             |               
            
                1.90
             |                           
            
                2.20
             | 
            
                2.12
             |                     
            
                2.20
             |                                 
            
                1,483,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2018
             | 
            
                -0.20 / -8.70%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.15
             |                     
            
                2.10
             |                                 
            
                1,452,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2018
             | 
            
                -0.20 / -8.00%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.36
             |                     
            
                2.30
             |                                 
            
                1,411,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2018
             | 
            
                -0.20 / -7.41%
             |             
            
                2.70
             |           
            
                2.80
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.56
             |                     
            
                2.50
             |                                 
            
                1,334,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |