| 
                 
                    Closing price on 3/29/2022
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    37.50 | 
                 
                
                    | High | 
                    37.50 | 
                 
                
                    | Low | 
                    36.30 | 
                     
                
                    | Volume | 
                    4,100 | 
                                 
                
                    | Split-adjusted Price | 
                    17.22 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
VTK Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/29/2022
             | 
            
                0.00 / 0.00%
             |             
            
                37.50
             |           
            
                37.50
             |               
            
                36.30
             |                           
            
                37.30
             | 
            
                37.10
             |                     
            
                17.22
             |                                 
            
                4,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2022
             | 
            
                +1.70 / +4.71%
             |             
            
                36.10
             |           
            
                39.90
             |               
            
                36.10
             |                           
            
                37.80
             | 
            
                37.30
             |                     
            
                17.45
             |                                 
            
                7,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2022
             | 
            
                +1.20 / +3.44%
             |             
            
                35.00
             |           
            
                37.80
             |               
            
                35.00
             |                           
            
                36.10
             | 
            
                36.10
             |                     
            
                16.67
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2022
             | 
            
                -1.50 / -4.07%
             |             
            
                35.90
             |           
            
                36.00
             |               
            
                33.10
             |                           
            
                35.40
             | 
            
                34.90
             |                     
            
                16.35
             |                                 
            
                20,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2022
             | 
            
                -2.50 / -6.48%
             |             
            
                37.50
             |           
            
                38.00
             |               
            
                36.10
             |                           
            
                36.10
             | 
            
                36.90
             |                     
            
                16.67
             |                                 
            
                14,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2022
             | 
            
                -4.80 / -11.21%
             |             
            
                42.50
             |           
            
                42.50
             |               
            
                38.00
             |                           
            
                38.00
             | 
            
                38.60
             |                     
            
                17.55
             |                                 
            
                22,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2022
             | 
            
                +4.40 / +11.70%
             |             
            
                43.00
             |           
            
                43.20
             |               
            
                37.60
             |                           
            
                42.00
             | 
            
                42.80
             |                     
            
                19.39
             |                                 
            
                50,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2022
             | 
            
                +4.90 / +14.89%
             |             
            
                35.00
             |           
            
                37.80
             |               
            
                35.00
             |                           
            
                37.80
             | 
            
                37.60
             |                     
            
                17.45
             |                                 
            
                27,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2022
             | 
            
                +4.10 / +13.27%
             |             
            
                31.00
             |           
            
                35.20
             |               
            
                31.00
             |                           
            
                35.00
             | 
            
                32.90
             |                     
            
                16.16
             |                                 
            
                31,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2022
             | 
            
                +0.30 / +0.98%
             |             
            
                30.70
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                31.00
             | 
            
                30.90
             |                     
            
                14.31
             |                                 
            
                20,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2022
             | 
            
                +1.00 / +3.37%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                30.70
             | 
            
                30.70
             |                     
            
                14.18
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2022
             | 
            
                +0.10 / +0.34%
             |             
            
                29.60
             |           
            
                29.90
             |               
            
                29.50
             |                           
            
                29.70
             | 
            
                29.70
             |                     
            
                13.71
             |                                 
            
                13,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2022
             | 
            
                +0.70 / +2.43%
             |             
            
                29.50
             |           
            
                29.90
             |               
            
                29.10
             |                           
            
                29.50
             | 
            
                29.60
             |                     
            
                13.62
             |                                 
            
                25,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2022
             | 
            
                +0.30 / +1.05%
             |             
            
                28.80
             |           
            
                28.90
             |               
            
                28.80
             |                           
            
                28.80
             | 
            
                28.80
             |                     
            
                13.30
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2022
             | 
            
                -0.20 / -0.70%
             |             
            
                28.50
             |           
            
                28.50
             |               
            
                28.40
             |                           
            
                28.40
             | 
            
                28.50
             |                     
            
                13.11
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2022
             | 
            
                -0.30 / -1.04%
             |             
            
                28.50
             |           
            
                28.60
             |               
            
                28.50
             |                           
            
                28.60
             | 
            
                28.60
             |                     
            
                13.21
             |                                 
            
                8,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.90
             |           
            
                28.90
             |               
            
                28.90
             |                           
            
                28.90
             | 
            
                28.90
             |                     
            
                13.34
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2022
             | 
            
                -0.20 / -0.69%
             |             
            
                28.90
             |           
            
                28.90
             |               
            
                28.90
             |                           
            
                28.90
             | 
            
                28.90
             |                     
            
                13.34
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2022
             | 
            
                +1.00 / +3.50%
             |             
            
                28.60
             |           
            
                29.60
             |               
            
                28.50
             |                           
            
                29.60
             | 
            
                29.10
             |                     
            
                13.67
             |                                 
            
                30,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2022
             | 
            
                +0.20 / +0.71%
             |             
            
                28.80
             |           
            
                28.90
             |               
            
                28.20
             |                           
            
                28.40
             | 
            
                28.60
             |                     
            
                13.11
             |                                 
            
                26,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2022
             | 
            
                +0.70 / +2.48%
             |             
            
                28.20
             |           
            
                28.90
             |               
            
                28.20
             |                           
            
                28.90
             | 
            
                28.20
             |                     
            
                13.34
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2022
             | 
            
                -0.20 / -0.70%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.10
             |                           
            
                28.20
             | 
            
                28.20
             |                     
            
                13.02
             |                                 
            
                2,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2022
             | 
            
                +0.80 / +2.84%
             |             
            
                28.10
             |           
            
                29.00
             |               
            
                28.10
             |                           
            
                29.00
             | 
            
                28.40
             |                     
            
                13.39
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2022
             | 
            
                -0.70 / -2.43%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.10
             |                           
            
                28.10
             | 
            
                28.20
             |                     
            
                12.98
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.90
             |           
            
                28.90
             |               
            
                28.50
             |                           
            
                28.90
             | 
            
                28.80
             |                     
            
                13.34
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2022
             | 
            
                -0.20 / -0.69%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.70
             |                           
            
                28.70
             | 
            
                28.90
             |                     
            
                13.25
             |                                 
            
                7,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2022
             | 
            
                -0.40 / -1.38%
             |             
            
                28.90
             |           
            
                29.00
             |               
            
                28.60
             |                           
            
                28.60
             | 
            
                28.90
             |                     
            
                13.21
             |                                 
            
                7,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.90
             |           
            
                29.00
             |               
            
                28.90
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                13.39
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2022
             | 
            
                +0.70 / +2.47%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                13.39
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/16/2022
             | 
            
                -0.80 / -2.78%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                28.00
             |                           
            
                28.00
             | 
            
                28.30
             |                     
            
                12.93
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |