| 
                 
                    Closing price on 9/22/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.30 | 
                 
                
                    | High | 
                    7.60 | 
                 
                
                    | Low | 
                    7.30 | 
                     
                
                    | Volume | 
                    25,038 | 
                                 
                
                    | Split-adjusted Price | 
                    7.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VKC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/22/2017
             | 
            
                -0.10 / -1.32%
             |             
            
                7.30
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.46
             |                     
            
                7.50
             |                                 
            
                25,038
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2017
             | 
            
                +0.10 / +1.33%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.40
             |                           
            
                7.60
             | 
            
                7.49
             |                     
            
                7.60
             |                                 
            
                11,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2017
             | 
            
                +0.30 / +4.17%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.43
             |                     
            
                7.50
             |                                 
            
                27,425
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2017
             | 
            
                -0.60 / -7.69%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.43
             |                     
            
                7.20
             |                                 
            
                611,706
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2017
             | 
            
                +0.10 / +1.30%
             |             
            
                7.70
             |           
            
                7.90
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                7.80
             |                                 
            
                59,020
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2017
             | 
            
                +0.10 / +1.32%
             |             
            
                7.50
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.70
             | 
            
                7.60
             |                     
            
                7.70
             |                                 
            
                62,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2017
             | 
            
                +0.10 / +1.33%
             |             
            
                7.60
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.58
             |                     
            
                7.60
             |                                 
            
                27,107
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2017
             | 
            
                -0.10 / -1.32%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.40
             |                           
            
                7.50
             | 
            
                7.47
             |                     
            
                7.50
             |                                 
            
                100,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.60
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.55
             |                     
            
                7.60
             |                                 
            
                24,976
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.51
             |                     
            
                7.60
             |                                 
            
                52,654
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.40
             |                           
            
                7.60
             | 
            
                7.54
             |                     
            
                7.60
             |                                 
            
                54,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2017
             | 
            
                -0.10 / -1.30%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.56
             |                     
            
                7.60
             |                                 
            
                27,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2017
             | 
            
                -0.10 / -1.28%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.40
             |                           
            
                7.70
             | 
            
                7.52
             |                     
            
                7.70
             |                                 
            
                189,999
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2017
             | 
            
                -0.10 / -1.27%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.85
             |                     
            
                7.80
             |                                 
            
                14,514
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                7.80
             |                           
            
                7.90
             | 
            
                7.88
             |                     
            
                7.90
             |                                 
            
                73,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2017
             | 
            
                -0.10 / -1.25%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.80
             |                           
            
                7.90
             | 
            
                7.87
             |                     
            
                7.90
             |                                 
            
                71,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2017
             | 
            
                +0.10 / +1.27%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                7.90
             |                     
            
                8.00
             |                                 
            
                41,078
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2017
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                7.90
             |                                 
            
                51,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2017
             | 
            
                -0.10 / -1.25%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.99
             |                     
            
                7.90
             |                                 
            
                48,073
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                7.94
             |                     
            
                8.00
             |                                 
            
                50,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2017
             | 
            
                -0.10 / -1.23%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.03
             |                     
            
                8.00
             |                                 
            
                41,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2017
             | 
            
                +0.10 / +1.25%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                8.10
             |                                 
            
                82,756
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2017
             | 
            
                -0.10 / -1.23%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.02
             |                     
            
                8.00
             |                                 
            
                64,464
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2017
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.06
             |                     
            
                8.10
             |                                 
            
                10,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2017
             | 
            
                -0.10 / -1.22%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                8.10
             | 
            
                8.07
             |                     
            
                8.10
             |                                 
            
                93,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2017
             | 
            
                +0.10 / +1.23%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.10
             |                     
            
                8.20
             |                                 
            
                34,064
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2017
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.13
             |                     
            
                8.10
             |                                 
            
                50,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2017
             | 
            
                -0.10 / -1.22%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.13
             |                     
            
                8.10
             |                                 
            
                44,504
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2017
             | 
            
                +0.10 / +1.23%
             |             
            
                8.00
             |           
            
                8.30
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.13
             |                     
            
                8.20
             |                                 
            
                99,777
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                8.10
             | 
            
                7.95
             |                     
            
                8.10
             |                                 
            
                32,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |