| 
                 
                    Closing price on 9/11/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.60 | 
                 
                
                    | High | 
                    3.60 | 
                 
                
                    | Low | 
                    3.40 | 
                     
                
                    | Volume | 
                    2,147,000 | 
                                 
                
                    | Split-adjusted Price | 
                    3.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/11/2018
             | 
            
                +0.30 / +9.09%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.60
             | 
            
                3.59
             |                     
            
                3.60
             |                                 
            
                2,147,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2018
             | 
            
                +0.30 / +10.00%
             |             
            
                3.10
             |           
            
                3.30
             |               
            
                2.90
             |                           
            
                3.30
             | 
            
                3.27
             |                     
            
                3.30
             |                                 
            
                2,017,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2018
             | 
            
                -0.10 / -3.23%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                2.90
             |                           
            
                3.00
             | 
            
                3.17
             |                     
            
                3.00
             |                                 
            
                3,527,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2018
             | 
            
                +0.20 / +6.90%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                3.10
             |                                 
            
                203,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2018
             | 
            
                +0.20 / +7.41%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.90
             |                                 
            
                234,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2018
             | 
            
                +0.20 / +8.00%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.70
             | 
            
                2.69
             |                     
            
                2.70
             |                                 
            
                466,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.50
             |                     
            
                2.50
             |                                 
            
                324,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.50
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.50
             | 
            
                2.40
             |                     
            
                2.50
             |                                 
            
                796,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2018
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.50
             | 
            
                2.49
             |                     
            
                2.50
             |                                 
            
                679,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.69
             |                     
            
                2.60
             |                                 
            
                524,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2018
             | 
            
                +0.20 / +8.33%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.59
             |                     
            
                2.60
             |                                 
            
                1,911,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2018
             | 
            
                +0.10 / +4.35%
             |             
            
                2.30
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.39
             |                     
            
                2.40
             |                                 
            
                922,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.29
             |                     
            
                2.30
             |                                 
            
                371,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                822,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.37
             |                     
            
                2.30
             |                                 
            
                1,234,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2018
             | 
            
                +0.20 / +9.52%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.00
             |                           
            
                2.30
             | 
            
                2.26
             |                     
            
                2.30
             |                                 
            
                2,641,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                343,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.07
             |                     
            
                2.10
             |                                 
            
                197,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                666,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                266,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |