| 
                 
                    Closing price on 3/17/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    25.95 | 
                 
                
                    | High | 
                    26.30 | 
                 
                
                    | Low | 
                    25.95 | 
                     
                
                    | Volume | 
                    4,100 | 
                                 
                
                    | Split-adjusted Price | 
                    25.03 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NBB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/17/2021
             | 
            
                +0.35 / +1.35%
             |             
            
                25.95
             |           
            
                26.30
             |               
            
                25.95
             |                           
            
                26.30
             | 
            
                26.21
             |                     
            
                25.03
             |                                 
            
                4,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2021
             | 
            
                -0.05 / -0.19%
             |             
            
                25.50
             |           
            
                25.95
             |               
            
                25.40
             |                           
            
                25.95
             | 
            
                25.51
             |                     
            
                24.70
             |                                 
            
                10,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2021
             | 
            
                -0.30 / -1.14%
             |             
            
                26.00
             |           
            
                26.05
             |               
            
                25.60
             |                           
            
                26.00
             | 
            
                25.84
             |                     
            
                24.74
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.30
             |           
            
                26.30
             |               
            
                26.30
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                25.03
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2021
             | 
            
                -0.20 / -0.75%
             |             
            
                25.50
             |           
            
                26.30
             |               
            
                25.00
             |                           
            
                26.30
             | 
            
                25.21
             |                     
            
                25.03
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                25.22
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                25.22
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2021
             | 
            
                -0.40 / -1.49%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                25.22
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/5/2021
             | 
            
                0.00 / 0.00%
             |             
            
                25.20
             |           
            
                26.90
             |               
            
                25.10
             |                           
            
                26.90
             | 
            
                25.38
             |                     
            
                25.60
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.90
             |           
            
                26.90
             |               
            
                25.45
             |                           
            
                26.90
             | 
            
                26.42
             |                     
            
                25.60
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.90
             |           
            
                26.90
             |               
            
                26.90
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                25.60
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2021
             | 
            
                +0.40 / +1.51%
             |             
            
                26.90
             |           
            
                26.90
             |               
            
                26.90
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                25.60
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2021
             | 
            
                +0.80 / +3.11%
             |             
            
                25.40
             |           
            
                26.50
             |               
            
                25.40
             |                           
            
                26.50
             | 
            
                26.28
             |                     
            
                25.22
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2021
             | 
            
                -1.25 / -4.64%
             |             
            
                26.95
             |           
            
                26.95
             |               
            
                25.70
             |                           
            
                25.70
             | 
            
                26.84
             |                     
            
                24.46
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2021
             | 
            
                0.00 / 0.00%
             |             
            
                26.95
             |           
            
                26.95
             |               
            
                26.95
             |                           
            
                26.95
             | 
            
                26.95
             |                     
            
                25.65
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2021
             | 
            
                +0.05 / +0.19%
             |             
            
                25.60
             |           
            
                26.95
             |               
            
                25.10
             |                           
            
                26.95
             | 
            
                25.49
             |                     
            
                25.65
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/23/2021
             | 
            
                -0.10 / -0.37%
             |             
            
                25.25
             |           
            
                27.00
             |               
            
                25.20
             |                           
            
                26.90
             | 
            
                25.28
             |                     
            
                25.60
             |                                 
            
                195,970
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2021
             | 
            
                +1.05 / +4.05%
             |             
            
                25.85
             |           
            
                27.00
             |               
            
                25.85
             |                           
            
                27.00
             | 
            
                26.61
             |                     
            
                25.69
             |                                 
            
                25,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2021
             | 
            
                -0.05 / -0.19%
             |             
            
                25.90
             |           
            
                25.95
             |               
            
                25.90
             |                           
            
                25.95
             | 
            
                25.93
             |                     
            
                24.70
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2021
             | 
            
                +0.05 / +0.19%
             |             
            
                25.90
             |           
            
                26.00
             |               
            
                25.90
             |                           
            
                26.00
             | 
            
                25.93
             |                     
            
                24.74
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2021
             | 
            
                +0.95 / +3.80%
             |             
            
                25.00
             |           
            
                25.95
             |               
            
                25.00
             |                           
            
                25.95
             | 
            
                25.68
             |                     
            
                24.70
             |                                 
            
                44,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2021
             | 
            
                0.00 / 0.00%
             |             
            
                23.60
             |           
            
                25.00
             |               
            
                23.60
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                23.79
             |                                 
            
                13,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2021
             | 
            
                +1.50 / +6.38%
             |             
            
                23.60
             |           
            
                25.00
             |               
            
                23.40
             |                           
            
                25.00
             | 
            
                24.09
             |                     
            
                23.79
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2021
             | 
            
                -1.10 / -4.47%
             |             
            
                23.20
             |           
            
                24.60
             |               
            
                23.20
             |                           
            
                23.50
             | 
            
                23.73
             |                     
            
                22.36
             |                                 
            
                1,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2021
             | 
            
                +0.15 / +0.61%
             |             
            
                24.60
             |           
            
                24.60
             |               
            
                24.60
             |                           
            
                24.60
             | 
            
                24.60
             |                     
            
                23.41
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2021
             | 
            
                +0.85 / +3.60%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                22.20
             |                           
            
                24.45
             | 
            
                23.90
             |                     
            
                23.27
             |                                 
            
                32,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2021
             | 
            
                +1.30 / +5.83%
             |             
            
                23.00
             |           
            
                23.60
             |               
            
                23.00
             |                           
            
                23.60
             | 
            
                23.51
             |                     
            
                22.46
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2021
             | 
            
                -1.60 / -6.69%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                22.30
             |                           
            
                22.30
             | 
            
                22.34
             |                     
            
                21.22
             |                                 
            
                8,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2021
             | 
            
                +0.60 / +2.58%
             |             
            
                21.70
             |           
            
                24.00
             |               
            
                21.70
             |                           
            
                23.90
             | 
            
                21.98
             |                     
            
                22.74
             |                                 
            
                8,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2021
             | 
            
                -1.65 / -6.61%
             |             
            
                23.30
             |           
            
                23.50
             |               
            
                23.30
             |                           
            
                23.30
             | 
            
                23.43
             |                     
            
                22.17
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |