| 
                 
                    Closing price on 4/8/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.70 | 
                 
                
                    | High | 
                    4.80 | 
                 
                
                    | Low | 
                    4.70 | 
                     
                
                    | Volume | 
                    53,300 | 
                                 
                
                    | Split-adjusted Price | 
                    4.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/8/2019
             | 
            
                -0.10 / -2.08%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.71
             |                     
            
                4.70
             |                                 
            
                53,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2019
             | 
            
                +0.10 / +2.13%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.80
             | 
            
                4.73
             |                     
            
                4.80
             |                                 
            
                30,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2019
             | 
            
                -0.10 / -2.08%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.70
             |                                 
            
                17,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2019
             | 
            
                +0.20 / +4.35%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.80
             | 
            
                4.71
             |                     
            
                4.80
             |                                 
            
                8,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2019
             | 
            
                -0.20 / -4.17%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.65
             |                     
            
                4.60
             |                                 
            
                12,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2019
             | 
            
                -0.20 / -4.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.50
             |                           
            
                4.80
             | 
            
                4.59
             |                     
            
                4.80
             |                                 
            
                356,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2019
             | 
            
                +0.40 / +8.70%
             |             
            
                4.80
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                5.00
             | 
            
                4.91
             |                     
            
                5.00
             |                                 
            
                10,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2019
             | 
            
                -0.30 / -6.12%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.74
             |                     
            
                4.60
             |                                 
            
                25,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.90
             |                                 
            
                34,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.78
             |                     
            
                4.90
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2019
             | 
            
                -0.10 / -2.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.90
             | 
            
                4.80
             |                     
            
                4.90
             |                                 
            
                48,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2019
             | 
            
                +0.20 / +4.17%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                5.00
             | 
            
                4.87
             |                     
            
                5.00
             |                                 
            
                11,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2019
             | 
            
                -0.10 / -2.04%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.90
             |                     
            
                4.80
             |                                 
            
                26,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2019
             | 
            
                -0.20 / -3.92%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.97
             |                     
            
                4.90
             |                                 
            
                37,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2019
             | 
            
                +0.10 / +2.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                5.00
             |                           
            
                5.10
             | 
            
                5.00
             |                     
            
                5.10
             |                                 
            
                21,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2019
             | 
            
                +0.10 / +2.04%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                38,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2019
             | 
            
                -0.10 / -2.00%
             |             
            
                5.10
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.92
             |                     
            
                4.90
             |                                 
            
                49,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                22,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.98
             |                     
            
                5.00
             |                                 
            
                30,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2019
             | 
            
                +0.10 / +2.04%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.95
             |                     
            
                5.00
             |                                 
            
                22,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2019
             | 
            
                -0.10 / -2.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.95
             |                     
            
                4.90
             |                                 
            
                13,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                34,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                50,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.97
             |                     
            
                5.00
             |                                 
            
                65,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.98
             |                     
            
                5.00
             |                                 
            
                61,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.90
             |                     
            
                5.00
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                41,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                5.00
             |                                 
            
                52,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.10
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.96
             |                     
            
                5.00
             |                                 
            
                64,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2019
             | 
            
                +0.10 / +2.04%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.99
             |                     
            
                5.00
             |                                 
            
                6,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |