| 
                 
                    Closing price on 9/21/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.90 | 
                 
                
                    | High | 
                    7.40 | 
                 
                
                    | Low | 
                    6.80 | 
                     
                
                    | Volume | 
                    821,600 | 
                                 
                
                    | Split-adjusted Price | 
                    7.40 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DS3 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/21/2021
             | 
            
                +0.60 / +8.82%
             |             
            
                6.90
             |           
            
                7.40
             |               
            
                6.80
             |                           
            
                7.40
             | 
            
                7.19
             |                     
            
                7.40
             |                                 
            
                821,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2021
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                7.00
             |               
            
                6.70
             |                           
            
                6.80
             | 
            
                6.86
             |                     
            
                6.80
             |                                 
            
                221,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2021
             | 
            
                +0.10 / +1.49%
             |             
            
                6.60
             |           
            
                6.90
             |               
            
                6.50
             |                           
            
                6.80
             | 
            
                6.66
             |                     
            
                6.80
             |                                 
            
                347,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2021
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.50
             |                           
            
                6.70
             | 
            
                6.62
             |                     
            
                6.70
             |                                 
            
                331,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2021
             | 
            
                -0.20 / -2.90%
             |             
            
                6.80
             |           
            
                7.00
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.80
             |                     
            
                6.70
             |                                 
            
                162,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2021
             | 
            
                +0.50 / +7.81%
             |             
            
                6.60
             |           
            
                7.00
             |               
            
                6.50
             |                           
            
                6.90
             | 
            
                6.86
             |                     
            
                6.90
             |                                 
            
                585,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2021
             | 
            
                +0.50 / +8.47%
             |             
            
                6.00
             |           
            
                6.40
             |               
            
                6.00
             |                           
            
                6.40
             | 
            
                6.29
             |                     
            
                6.40
             |                                 
            
                752,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.80
             |                           
            
                5.90
             | 
            
                5.90
             |                     
            
                5.90
             |                                 
            
                64,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.70
             |                           
            
                5.90
             | 
            
                5.85
             |                     
            
                5.90
             |                                 
            
                61,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.90
             |           
            
                6.00
             |               
            
                5.80
             |                           
            
                5.90
             | 
            
                5.82
             |                     
            
                5.90
             |                                 
            
                112,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2021
             | 
            
                -0.30 / -4.84%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                5.90
             |                           
            
                5.90
             | 
            
                5.97
             |                     
            
                5.90
             |                                 
            
                62,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2021
             | 
            
                +0.50 / +8.77%
             |             
            
                5.70
             |           
            
                6.20
             |               
            
                5.70
             |                           
            
                6.20
             | 
            
                5.92
             |                     
            
                6.20
             |                                 
            
                334,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2021
             | 
            
                +0.10 / +1.79%
             |             
            
                5.60
             |           
            
                5.80
             |               
            
                5.60
             |                           
            
                5.70
             | 
            
                5.70
             |                     
            
                5.70
             |                                 
            
                117,800
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |