| 
                 
                    Closing price on 11/26/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.70 | 
                 
                
                    | High | 
                    10.00 | 
                 
                
                    | Low | 
                    9.60 | 
                     
                
                    | Volume | 
                    8,200 | 
                                 
                
                    | Split-adjusted Price | 
                    7.87 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/26/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.70
             |           
            
                10.00
             |               
            
                9.60
             |                           
            
                9.70
             | 
            
                9.76
             |                     
            
                7.87
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2021
             | 
            
                -0.30 / -3.00%
             |             
            
                9.50
             |           
            
                10.20
             |               
            
                9.50
             |                           
            
                9.70
             | 
            
                9.68
             |                     
            
                7.87
             |                                 
            
                9,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2021
             | 
            
                -0.40 / -3.85%
             |             
            
                9.70
             |           
            
                10.20
             |               
            
                9.50
             |                           
            
                10.00
             | 
            
                9.76
             |                     
            
                8.11
             |                                 
            
                20,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2021
             | 
            
                +0.40 / +4.00%
             |             
            
                10.00
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.40
             | 
            
                10.19
             |                     
            
                8.43
             |                                 
            
                25,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2021
             | 
            
                -0.30 / -2.91%
             |             
            
                10.30
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.16
             |                     
            
                8.11
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2021
             | 
            
                -0.90 / -8.04%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.72
             |                     
            
                8.35
             |                                 
            
                55,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2021
             | 
            
                -0.30 / -2.61%
             |             
            
                10.80
             |           
            
                11.20
             |               
            
                10.80
             |                           
            
                11.20
             | 
            
                10.90
             |                     
            
                9.08
             |                                 
            
                19,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2021
             | 
            
                -0.10 / -0.86%
             |             
            
                11.50
             |           
            
                11.60
             |               
            
                10.80
             |                           
            
                11.50
             | 
            
                11.26
             |                     
            
                9.33
             |                                 
            
                34,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2021
             | 
            
                +0.50 / +4.50%
             |             
            
                12.20
             |           
            
                12.20
             |               
            
                10.80
             |                           
            
                11.60
             | 
            
                11.46
             |                     
            
                9.41
             |                                 
            
                45,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2021
             | 
            
                +1.00 / +9.90%
             |             
            
                10.10
             |           
            
                11.10
             |               
            
                10.10
             |                           
            
                11.10
             | 
            
                10.87
             |                     
            
                9.00
             |                                 
            
                88,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2021
             | 
            
                +0.60 / +6.32%
             |             
            
                9.40
             |           
            
                10.10
             |               
            
                9.40
             |                           
            
                10.10
             | 
            
                9.94
             |                     
            
                8.19
             |                                 
            
                86,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2021
             | 
            
                +0.10 / +1.06%
             |             
            
                9.40
             |           
            
                9.50
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.44
             |                     
            
                7.70
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.30
             |           
            
                9.50
             |               
            
                9.20
             |                           
            
                9.40
             | 
            
                9.32
             |                     
            
                7.62
             |                                 
            
                35,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2021
             | 
            
                -0.20 / -2.08%
             |             
            
                9.60
             |           
            
                9.90
             |               
            
                9.30
             |                           
            
                9.40
             | 
            
                9.43
             |                     
            
                7.62
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2021
             | 
            
                +0.10 / +1.05%
             |             
            
                9.50
             |           
            
                9.60
             |               
            
                9.30
             |                           
            
                9.60
             | 
            
                9.39
             |                     
            
                7.79
             |                                 
            
                42,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.44
             |                     
            
                7.70
             |                                 
            
                19,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.40
             |           
            
                9.60
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.47
             |                     
            
                7.70
             |                                 
            
                18,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2021
             | 
            
                -0.10 / -1.04%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.40
             |                           
            
                9.50
             | 
            
                9.70
             |                     
            
                7.70
             |                                 
            
                36,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/2/2021
             | 
            
                +0.30 / +3.23%
             |             
            
                9.30
             |           
            
                9.60
             |               
            
                9.20
             |                           
            
                9.60
             | 
            
                9.36
             |                     
            
                7.79
             |                                 
            
                56,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2021
             | 
            
                +0.10 / +1.09%
             |             
            
                9.20
             |           
            
                9.30
             |               
            
                9.10
             |                           
            
                9.30
             | 
            
                9.22
             |                     
            
                7.54
             |                                 
            
                29,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2021
             | 
            
                +0.20 / +2.22%
             |             
            
                9.00
             |           
            
                9.30
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.10
             |                     
            
                7.46
             |                                 
            
                17,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.00
             |           
            
                9.30
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.12
             |                     
            
                7.30
             |                                 
            
                34,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/27/2021
             | 
            
                -0.20 / -2.17%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                8.70
             |                           
            
                9.00
             | 
            
                8.89
             |                     
            
                7.30
             |                                 
            
                49,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2021
             | 
            
                -0.20 / -2.13%
             |             
            
                9.00
             |           
            
                9.30
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.13
             |                     
            
                7.46
             |                                 
            
                14,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2021
             | 
            
                +0.50 / +5.62%
             |             
            
                9.00
             |           
            
                9.60
             |               
            
                8.90
             |                           
            
                9.40
             | 
            
                9.46
             |                     
            
                7.62
             |                                 
            
                95,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2021
             | 
            
                +0.80 / +9.88%
             |             
            
                8.20
             |           
            
                8.90
             |               
            
                8.20
             |                           
            
                8.90
             | 
            
                8.74
             |                     
            
                7.22
             |                                 
            
                67,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2021
             | 
            
                -0.10 / -1.22%
             |             
            
                8.00
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.18
             |                     
            
                6.57
             |                                 
            
                8,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.20
             | 
            
                8.06
             |                     
            
                6.65
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2021
             | 
            
                +0.10 / +1.23%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.65
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.20
             |               
            
                8.00
             |                           
            
                8.10
             | 
            
                8.14
             |                     
            
                6.57
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
         
    
    
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