| 
                 
                    Closing price on 8/31/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    5.80 | 
                 
                
                    | High | 
                    5.80 | 
                 
                
                    | Low | 
                    5.60 | 
                     
                
                    | Volume | 
                    73,400 | 
                                 
                
                    | Split-adjusted Price | 
                    5.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DS3 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/31/2021
             | 
            
                -0.20 / -3.45%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.69
             |                     
            
                5.60
             |                                 
            
                73,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2021
             | 
            
                +0.20 / +3.57%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.80
             | 
            
                5.70
             |                     
            
                5.80
             |                                 
            
                189,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2021
             | 
            
                +0.10 / +1.82%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.49
             |                     
            
                5.60
             |                                 
            
                50,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2021
             | 
            
                +0.10 / +1.85%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.50
             |                                 
            
                71,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2021
             | 
            
                -0.10 / -1.82%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.45
             |                     
            
                5.40
             |                                 
            
                63,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2021
             | 
            
                -0.10 / -1.79%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.40
             |                           
            
                5.50
             | 
            
                5.51
             |                     
            
                5.50
             |                                 
            
                111,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.53
             |                     
            
                5.60
             |                                 
            
                37,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2021
             | 
            
                -0.10 / -1.75%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.58
             |                     
            
                5.60
             |                                 
            
                122,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2021
             | 
            
                +0.10 / +1.79%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.59
             |                     
            
                5.70
             |                                 
            
                26,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2021
             | 
            
                +0.10 / +1.82%
             |             
            
                5.50
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.58
             |                     
            
                5.60
             |                                 
            
                460,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2021
             | 
            
                -0.10 / -1.79%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.59
             |                     
            
                5.50
             |                                 
            
                18,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2021
             | 
            
                -0.10 / -1.75%
             |             
            
                5.60
             |           
            
                5.70
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.65
             |                     
            
                5.60
             |                                 
            
                58,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.70
             |           
            
                5.70
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.65
             |                     
            
                5.70
             |                                 
            
                27,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2021
             | 
            
                +0.10 / +1.79%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.69
             |                     
            
                5.70
             |                                 
            
                47,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.70
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.55
             |                     
            
                5.60
             |                                 
            
                83,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.50
             |                           
            
                5.60
             | 
            
                5.53
             |                     
            
                5.60
             |                                 
            
                15,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2021
             | 
            
                +0.10 / +1.82%
             |             
            
                5.50
             |           
            
                5.60
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.47
             |                     
            
                5.60
             |                                 
            
                53,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2021
             | 
            
                +0.10 / +1.85%
             |             
            
                5.40
             |           
            
                5.50
             |               
            
                5.40
             |                           
            
                5.50
             | 
            
                5.41
             |                     
            
                5.50
             |                                 
            
                32,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.50
             |               
            
                5.20
             |                           
            
                5.40
             | 
            
                5.32
             |                     
            
                5.40
             |                                 
            
                58,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2021
             | 
            
                +0.20 / +3.85%
             |             
            
                5.30
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.35
             |                     
            
                5.40
             |                                 
            
                54,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2021
             | 
            
                -0.10 / -1.89%
             |             
            
                5.20
             |           
            
                5.30
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.26
             |                     
            
                5.20
             |                                 
            
                26,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2021
             | 
            
                -0.10 / -1.85%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.30
             | 
            
                5.31
             |                     
            
                5.30
             |                                 
            
                42,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2021
             | 
            
                +0.10 / +1.89%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.40
             | 
            
                5.28
             |                     
            
                5.40
             |                                 
            
                44,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2021
             | 
            
                -0.20 / -3.64%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.34
             |                     
            
                5.30
             |                                 
            
                30,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2021
             | 
            
                +0.20 / +3.77%
             |             
            
                5.20
             |           
            
                5.50
             |               
            
                5.20
             |                           
            
                5.50
             | 
            
                5.34
             |                     
            
                5.50
             |                                 
            
                62,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2021
             | 
            
                +0.10 / +1.92%
             |             
            
                5.10
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.30
             | 
            
                5.20
             |                     
            
                5.30
             |                                 
            
                30,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2021
             | 
            
                -0.30 / -5.45%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.00
             |                           
            
                5.20
             | 
            
                5.15
             |                     
            
                5.20
             |                                 
            
                145,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2021
             | 
            
                -0.60 / -9.84%
             |             
            
                6.10
             |           
            
                6.10
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.68
             |                     
            
                5.50
             |                                 
            
                231,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2021
             | 
            
                +0.10 / +1.67%
             |             
            
                6.00
             |           
            
                6.10
             |               
            
                5.80
             |                           
            
                6.10
             | 
            
                5.94
             |                     
            
                6.10
             |                                 
            
                38,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2021
             | 
            
                +0.20 / +3.45%
             |             
            
                6.30
             |           
            
                6.30
             |               
            
                5.90
             |                           
            
                6.00
             | 
            
                6.02
             |                     
            
                6.00
             |                                 
            
                85,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |