| 
                 
                    Closing price on 8/6/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    0.90 | 
                 
                
                    | High | 
                    1.10 | 
                 
                
                    | Low | 
                    0.90 | 
                     
                
                    | Volume | 
                    490,300 | 
                                 
                
                    | Split-adjusted Price | 
                    0.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/6/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                0.90
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.92
             |                     
            
                0.90
             |                                 
            
                490,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.90
             |           
            
                1.10
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                257,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2019
             | 
            
                +0.10 / +11.11%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2019
             | 
            
                -0.10 / -10.00%
             |             
            
                0.90
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                0.90
             | 
            
                0.92
             |                     
            
                0.90
             |                                 
            
                49,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.00
             |               
            
                0.90
             |                           
            
                1.00
             | 
            
                0.99
             |                     
            
                1.00
             |                                 
            
                107,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.00
             |                     
            
                1.00
             |                                 
            
                73,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.02
             |                     
            
                1.10
             |                                 
            
                239,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.02
             |                     
            
                1.10
             |                                 
            
                194,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.04
             |                     
            
                1.10
             |                                 
            
                76,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.04
             |                     
            
                1.10
             |                                 
            
                100,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.00
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.09
             |                     
            
                1.00
             |                                 
            
                188,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                122,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                105,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.06
             |                     
            
                1.10
             |                                 
            
                262,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.00
             |           
            
                1.10
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                169,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.04
             |                     
            
                1.00
             |                                 
            
                95,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                96,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                55,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                62,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                90,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.20
             | 
            
                1.18
             |                     
            
                1.20
             |                                 
            
                38,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                101,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                198,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2019
             | 
            
                +0.10 / +10.00%
             |             
            
                1.10
             |           
            
                1.10
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                139,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2019
             | 
            
                -0.10 / -9.09%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.00
             | 
            
                1.06
             |                     
            
                1.00
             |                                 
            
                71,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                145,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                74,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.10
             |                     
            
                1.10
             |                                 
            
                63,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2019
             | 
            
                +0.10 / +9.09%
             |             
            
                1.20
             |           
            
                1.20
             |               
            
                1.00
             |                           
            
                1.20
             | 
            
                1.12
             |                     
            
                1.20
             |                                 
            
                271,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2019
             | 
            
                -0.10 / -8.33%
             |             
            
                1.10
             |           
            
                1.20
             |               
            
                1.10
             |                           
            
                1.10
             | 
            
                1.11
             |                     
            
                1.10
             |                                 
            
                30,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |