| 
                 
                    Closing price on 4/7/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.00 | 
                 
                
                    | High | 
                    5.40 | 
                 
                
                    | Low | 
                    4.90 | 
                     
                
                    | Volume | 
                    2,869,200 | 
                                 
                
                    | Split-adjusted Price | 
                    5.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/7/2021
             | 
            
                +0.20 / +4.00%
             |             
            
                5.00
             |           
            
                5.40
             |               
            
                4.90
             |                           
            
                5.20
             | 
            
                5.16
             |                     
            
                5.20
             |                                 
            
                2,869,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2021
             | 
            
                +0.20 / +4.17%
             |             
            
                4.90
             |           
            
                5.10
             |               
            
                4.70
             |                           
            
                5.00
             | 
            
                4.90
             |                     
            
                5.00
             |                                 
            
                2,356,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2021
             | 
            
                +0.20 / +4.35%
             |             
            
                4.60
             |           
            
                5.00
             |               
            
                4.50
             |                           
            
                4.80
             | 
            
                4.74
             |                     
            
                4.80
             |                                 
            
                3,029,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2021
             | 
            
                -0.10 / -2.13%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.61
             |                     
            
                4.60
             |                                 
            
                1,881,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2021
             | 
            
                +0.20 / +4.44%
             |             
            
                4.50
             |           
            
                4.90
             |               
            
                4.30
             |                           
            
                4.70
             | 
            
                4.71
             |                     
            
                4.70
             |                                 
            
                3,013,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2021
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.20
             |                           
            
                4.50
             | 
            
                4.36
             |                     
            
                4.50
             |                                 
            
                3,197,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2021
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.50
             | 
            
                4.45
             |                     
            
                4.50
             |                                 
            
                2,684,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2021
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.80
             |               
            
                4.20
             |                           
            
                4.50
             | 
            
                4.45
             |                     
            
                4.50
             |                                 
            
                3,981,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2021
             | 
            
                +0.10 / +2.27%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.00
             |                           
            
                4.50
             | 
            
                4.38
             |                     
            
                4.50
             |                                 
            
                3,187,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2021
             | 
            
                +0.40 / +10.00%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.40
             | 
            
                4.38
             |                     
            
                4.40
             |                                 
            
                3,357,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2021
             | 
            
                +0.30 / +8.11%
             |             
            
                3.70
             |           
            
                4.00
             |               
            
                3.60
             |                           
            
                4.00
             | 
            
                3.91
             |                     
            
                4.00
             |                                 
            
                6,715,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.69
             |                     
            
                3.70
             |                                 
            
                2,066,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.61
             |                     
            
                3.70
             |                                 
            
                878,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.70
             | 
            
                3.60
             |                     
            
                3.70
             |                                 
            
                1,336,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2021
             | 
            
                +0.10 / +2.78%
             |             
            
                3.60
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.68
             |                     
            
                3.70
             |                                 
            
                1,315,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2021
             | 
            
                -0.20 / -5.26%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.69
             |                     
            
                3.60
             |                                 
            
                1,060,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2021
             | 
            
                -0.10 / -2.56%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.73
             |                     
            
                3.80
             |                                 
            
                1,182,104
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2021
             | 
            
                +0.10 / +2.63%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.80
             |                     
            
                3.90
             |                                 
            
                2,220,281
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2021
             | 
            
                +0.20 / +5.56%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.72
             |                     
            
                3.80
             |                                 
            
                2,307,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                1,712,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.55
             |                     
            
                3.60
             |                                 
            
                961,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2021
             | 
            
                -0.10 / -2.70%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.59
             |                     
            
                3.60
             |                                 
            
                1,767,003
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2021
             | 
            
                +0.10 / +2.78%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.62
             |                     
            
                3.70
             |                                 
            
                1,797,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2021
             | 
            
                +0.20 / +5.88%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.60
             | 
            
                3.49
             |                     
            
                3.60
             |                                 
            
                1,120,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2021
             | 
            
                -0.20 / -5.56%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.51
             |                     
            
                3.40
             |                                 
            
                2,463,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2021
             | 
            
                +0.30 / +9.09%
             |             
            
                3.30
             |           
            
                3.60
             |               
            
                3.30
             |                           
            
                3.60
             | 
            
                3.42
             |                     
            
                3.60
             |                                 
            
                2,447,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                3.20
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                3.30
             |                                 
            
                792,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2021
             | 
            
                +0.10 / +3.13%
             |             
            
                3.20
             |           
            
                3.40
             |               
            
                3.10
             |                           
            
                3.30
             | 
            
                3.29
             |                     
            
                3.30
             |                                 
            
                1,156,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2021
             | 
            
                -0.20 / -5.88%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.21
             |                     
            
                3.20
             |                                 
            
                1,362,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.40
             |           
            
                3.50
             |               
            
                3.20
             |                           
            
                3.40
             | 
            
                3.34
             |                     
            
                3.40
             |                                 
            
                1,129,800
             |  
            
                 
             |                                                              
             
    
         
    
    
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