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                    Closing price on 10/4/2021
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        |           
                
                    | Open | 29.00 |  
                    | High | 29.20 |  
                    | Low | 29.00 |  
                    | Volume | 1,300 |  
                    | Split-adjusted Price | 13.48 |  
                
             | 
 |  VTK Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/4/2021 | +0.20 / +0.69% | 29.00 | 29.20 | 29.00 | 29.20 | 29.20 | 13.48 | 1,300 |   |  
            | 10/1/2021 | 0.00 / 0.00% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 700 |   |  			
            | 9/30/2021 | 0.00 / 0.00% | 29.00 | 29.00 | 28.90 | 29.00 | 29.00 | 13.39 | 1,000 |   |  
            | 9/29/2021 | -0.10 / -0.34% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 400 |   |  			
            | 9/28/2021 | 0.00 / 0.00% | 29.10 | 29.10 | 29.10 | 29.10 | 29.10 | 13.44 | 1,900 |   |  
            | 9/27/2021 | 0.00 / 0.00% | 29.10 | 29.10 | 29.10 | 29.10 | 29.10 | 13.44 | 0 |   |  			
            | 9/24/2021 | 0.00 / 0.00% | 29.10 | 29.10 | 29.00 | 29.10 | 29.10 | 13.44 | 1,300 |   |  
            | 9/23/2021 | 0.00 / 0.00% | 29.10 | 29.20 | 29.00 | 29.10 | 29.10 | 13.44 | 2,000 |   |  			
            | 9/22/2021 | +0.10 / +0.34% | 29.10 | 29.20 | 29.10 | 29.20 | 29.10 | 13.48 | 2,500 |   |  
            | 9/21/2021 | -0.10 / -0.34% | 29.10 | 29.10 | 29.10 | 29.10 | 29.10 | 13.44 | 800 |   |  			
            | 9/20/2021 | +0.10 / +0.34% | 29.10 | 29.60 | 29.10 | 29.20 | 29.20 | 13.48 | 2,300 |   |  
            | 9/17/2021 | +0.50 / +1.72% | 29.00 | 29.50 | 29.00 | 29.50 | 29.10 | 13.62 | 2,000 |   |  			
            | 9/16/2021 | -0.50 / -1.69% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 100 |   |  
            | 9/15/2021 | 0.00 / 0.00% | 29.50 | 29.50 | 29.50 | 29.50 | 29.50 | 13.62 | 400 |   |  			
            | 9/14/2021 | +0.60 / +2.08% | 29.90 | 29.90 | 29.50 | 29.50 | 29.50 | 13.62 | 1,800 |   |  
            | 9/13/2021 | -1.00 / -3.37% | 30.30 | 30.30 | 28.70 | 28.70 | 28.90 | 13.25 | 4,600 |   |  			
            | 9/10/2021 | +0.30 / +1.01% | 30.40 | 30.40 | 29.50 | 29.90 | 29.70 | 13.81 | 4,600 |   |  
            | 9/9/2021 | 0.00 / 0.00% | 29.50 | 29.60 | 29.50 | 29.60 | 29.60 | 13.67 | 300 |   |  			
            | 9/8/2021 | 0.00 / 0.00% | 29.60 | 29.60 | 29.60 | 29.60 | 29.60 | 13.67 | 0 |   |  
            | 9/7/2021 | -0.10 / -0.34% | 29.50 | 30.00 | 29.10 | 29.10 | 29.60 | 13.44 | 1,100 |   |  			
            | 9/6/2021 | +0.10 / +0.34% | 29.00 | 29.40 | 29.00 | 29.40 | 29.20 | 13.58 | 3,800 |   |  
            | 9/1/2021 | -0.10 / -0.34% | 29.50 | 29.50 | 29.00 | 29.40 | 29.30 | 13.58 | 2,700 |   |  			
            | 8/31/2021 | +0.40 / +1.38% | 30.00 | 30.00 | 29.00 | 29.40 | 29.50 | 13.58 | 900 |   |  
            | 8/30/2021 | 0.00 / 0.00% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 1,100 |   |  			
            | 8/27/2021 | -0.10 / -0.34% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 1,100 |   |  
            | 8/26/2021 | +0.10 / +0.34% | 28.90 | 29.20 | 28.90 | 29.10 | 29.10 | 13.44 | 3,700 |   |  			
            | 8/25/2021 | 0.00 / 0.00% | 29.00 | 29.00 | 29.00 | 29.00 | 29.00 | 13.39 | 2,500 |   |  
            | 8/24/2021 | +0.20 / +0.69% | 29.00 | 29.30 | 29.00 | 29.00 | 29.00 | 13.39 | 2,900 |   |  			
            | 8/23/2021 | -0.50 / -1.69% | 25.10 | 29.50 | 25.10 | 29.00 | 28.80 | 13.39 | 4,600 |   |  
            | 8/20/2021 | +0.20 / +0.68% | 29.90 | 29.90 | 29.00 | 29.80 | 29.50 | 13.76 | 500 |   |  |