| 
                 
                    Closing price on 7/16/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.70 | 
                 
                
                    | High | 
                    3.80 | 
                 
                
                    | Low | 
                    3.70 | 
                     
                
                    | Volume | 
                    18,600 | 
                                 
                
                    | Split-adjusted Price | 
                    3.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                18,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2019
             | 
            
                +0.10 / +2.78%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                7,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2019
             | 
            
                -0.20 / -5.26%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.63
             |                     
            
                3.60
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.65
             |                     
            
                3.80
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.79
             |                     
            
                3.80
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2019
             | 
            
                -0.10 / -2.56%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.77
             |                     
            
                3.80
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2019
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2019
             | 
            
                +0.20 / +5.56%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.84
             |                     
            
                3.80
             |                                 
            
                14,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2019
             | 
            
                -0.20 / -5.26%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.79
             |                     
            
                3.60
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.80
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.66
             |                     
            
                3.80
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2019
             | 
            
                -0.10 / -2.56%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.75
             |                     
            
                3.80
             |                                 
            
                9,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.86
             |                     
            
                3.90
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2019
             | 
            
                +0.20 / +5.41%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.87
             |                     
            
                3.90
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2019
             | 
            
                -0.20 / -5.13%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.80
             |                     
            
                3.90
             |                                 
            
                18,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.93
             |                     
            
                3.90
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.80
             |                     
            
                3.90
             |                                 
            
                5,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2019
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.70
             |                           
            
                3.90
             | 
            
                3.80
             |                     
            
                3.90
             |                                 
            
                32,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2019
             | 
            
                -0.10 / -2.56%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.80
             | 
            
                3.73
             |                     
            
                3.80
             |                                 
            
                15,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2019
             | 
            
                -0.20 / -4.88%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.93
             |                     
            
                3.90
             |                                 
            
                18,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.05
             |                     
            
                4.10
             |                                 
            
                20,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2019
             | 
            
                +0.10 / +2.50%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.01
             |                     
            
                4.10
             |                                 
            
                1,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2019
             | 
            
                -0.20 / -4.76%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.03
             |                     
            
                4.00
             |                                 
            
                13,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.13
             |                     
            
                4.20
             |                                 
            
                10,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2019
             | 
            
                -0.10 / -2.33%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.20
             | 
            
                4.14
             |                     
            
                4.20
             |                                 
            
                2,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2019
             | 
            
                +0.10 / +2.38%
             |             
            
                4.30
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2019
             | 
            
                +0.30 / +7.69%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.17
             |                     
            
                4.20
             |                                 
            
                4,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2019
             | 
            
                -0.30 / -7.14%
             |             
            
                4.10
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.95
             |                     
            
                3.90
             |                                 
            
                20,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |