| 
                 
                    Closing price on 1/7/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.20 | 
                 
                
                    | High | 
                    6.50 | 
                 
                
                    | Low | 
                    6.20 | 
                     
                
                    | Volume | 
                    369,800 | 
                                 
                
                    | Split-adjusted Price | 
                    6.30 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/7/2021
             | 
            
                -0.20 / -3.08%
             |             
            
                6.20
             |           
            
                6.50
             |               
            
                6.20
             |                           
            
                6.30
             | 
            
                6.30
             |                     
            
                6.30
             |                                 
            
                369,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2021
             | 
            
                -0.10 / -1.52%
             |             
            
                6.30
             |           
            
                6.60
             |               
            
                6.20
             |                           
            
                6.50
             | 
            
                6.34
             |                     
            
                6.50
             |                                 
            
                125,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2021
             | 
            
                -0.20 / -2.94%
             |             
            
                7.00
             |           
            
                7.10
             |               
            
                6.40
             |                           
            
                6.60
             | 
            
                6.78
             |                     
            
                6.60
             |                                 
            
                440,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2021
             | 
            
                +0.60 / +9.68%
             |             
            
                6.30
             |           
            
                6.80
             |               
            
                6.20
             |                           
            
                6.80
             | 
            
                6.46
             |                     
            
                6.80
             |                                 
            
                440,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/31/2020
             | 
            
                0.00 / 0.00%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                5.80
             |                           
            
                6.20
             | 
            
                5.92
             |                     
            
                6.20
             |                                 
            
                258,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2020
             | 
            
                +0.40 / +6.90%
             |             
            
                6.10
             |           
            
                6.30
             |               
            
                6.00
             |                           
            
                6.20
             | 
            
                6.19
             |                     
            
                6.20
             |                                 
            
                443,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2020
             | 
            
                +0.50 / +9.43%
             |             
            
                5.50
             |           
            
                5.80
             |               
            
                5.50
             |                           
            
                5.80
             | 
            
                5.74
             |                     
            
                5.80
             |                                 
            
                268,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2020
             | 
            
                +0.40 / +8.16%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.30
             | 
            
                5.26
             |                     
            
                5.30
             |                                 
            
                99,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/25/2020
             | 
            
                +0.40 / +8.89%
             |             
            
                4.50
             |           
            
                4.90
             |               
            
                4.50
             |                           
            
                4.90
             | 
            
                4.80
             |                     
            
                4.90
             |                                 
            
                101,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2020
             | 
            
                -0.10 / -2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.50
             |                                 
            
                14,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.75
             |                     
            
                4.60
             |                                 
            
                47,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2020
             | 
            
                -0.10 / -2.13%
             |             
            
                4.30
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.60
             | 
            
                4.40
             |                     
            
                4.60
             |                                 
            
                51,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/21/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2020
             | 
            
                +0.20 / +4.44%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.65
             |                     
            
                4.70
             |                                 
            
                22,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.80
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.56
             |                     
            
                4.50
             |                                 
            
                39,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2020
             | 
            
                +0.40 / +9.76%
             |             
            
                4.20
             |           
            
                4.50
             |               
            
                4.10
             |                           
            
                4.50
             | 
            
                4.33
             |                     
            
                4.50
             |                                 
            
                77,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/15/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.11
             |                     
            
                4.10
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/14/2020
             | 
            
                -0.10 / -2.38%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.18
             |                     
            
                4.10
             |                                 
            
                6,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/11/2020
             | 
            
                +0.10 / +2.44%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.10
             |                     
            
                4.20
             |                                 
            
                4,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                4.10
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                4.10
             |                                 
            
                4,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2020
             | 
            
                -0.10 / -2.38%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                4.00
             |                     
            
                4.10
             |                                 
            
                22,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.03
             |                     
            
                4.20
             |                                 
            
                28,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2020
             | 
            
                +0.30 / +7.69%
             |             
            
                3.90
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.20
             | 
            
                3.96
             |                     
            
                4.20
             |                                 
            
                12,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/4/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/3/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                14,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                5,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.91
             |                     
            
                3.90
             |                                 
            
                9,961
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                8,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |