| 
                 
                    Closing price on 6/15/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.20 | 
                 
                
                    | High | 
                    10.10 | 
                 
                
                    | Low | 
                    9.20 | 
                     
                
                    | Volume | 
                    272,700 | 
                                 
                
                    | Split-adjusted Price | 
                    8.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/15/2020
             | 
            
                +0.60 / +6.52%
             |             
            
                9.20
             |           
            
                10.10
             |               
            
                9.20
             |                           
            
                9.80
             | 
            
                10.09
             |                     
            
                8.10
             |                                 
            
                272,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2020
             | 
            
                -0.10 / -1.08%
             |             
            
                9.30
             |           
            
                10.20
             |               
            
                9.10
             |                           
            
                9.20
             | 
            
                9.94
             |                     
            
                7.60
             |                                 
            
                477,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2020
             | 
            
                -1.00 / -9.71%
             |             
            
                10.30
             |           
            
                10.80
             |               
            
                9.30
             |                           
            
                9.30
             | 
            
                10.29
             |                     
            
                7.68
             |                                 
            
                140,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2020
             | 
            
                -0.20 / -1.90%
             |             
            
                10.50
             |           
            
                10.90
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.64
             |                     
            
                8.51
             |                                 
            
                157,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2020
             | 
            
                +0.20 / +1.94%
             |             
            
                10.30
             |           
            
                11.00
             |               
            
                10.20
             |                           
            
                10.50
             | 
            
                10.64
             |                     
            
                8.68
             |                                 
            
                110,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2020
             | 
            
                +0.90 / +9.57%
             |             
            
                9.50
             |           
            
                10.30
             |               
            
                9.40
             |                           
            
                10.30
             | 
            
                10.28
             |                     
            
                8.51
             |                                 
            
                195,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2020
             | 
            
                +0.80 / +9.30%
             |             
            
                8.50
             |           
            
                9.40
             |               
            
                8.20
             |                           
            
                9.40
             | 
            
                9.38
             |                     
            
                7.77
             |                                 
            
                177,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2020
             | 
            
                +0.10 / +1.18%
             |             
            
                8.50
             |           
            
                8.80
             |               
            
                8.50
             |                           
            
                8.60
             | 
            
                8.70
             |                     
            
                7.11
             |                                 
            
                10,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.58
             |                     
            
                7.02
             |                                 
            
                35,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.60
             |               
            
                8.00
             |                           
            
                8.50
             | 
            
                8.50
             |                     
            
                7.02
             |                                 
            
                8,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2020
             | 
            
                +0.20 / +2.41%
             |             
            
                8.30
             |           
            
                8.50
             |               
            
                8.20
             |                           
            
                8.50
             | 
            
                8.43
             |                     
            
                7.02
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.50
             |               
            
                8.20
             |                           
            
                8.30
             | 
            
                8.36
             |                     
            
                6.86
             |                                 
            
                9,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2020
             | 
            
                -0.20 / -2.35%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.37
             |                     
            
                6.86
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.50
             |           
            
                8.70
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.62
             |                     
            
                7.02
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2020
             | 
            
                -0.20 / -2.30%
             |             
            
                8.70
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.50
             | 
            
                8.61
             |                     
            
                7.02
             |                                 
            
                70,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2020
             | 
            
                +0.10 / +1.16%
             |             
            
                8.60
             |           
            
                8.80
             |               
            
                8.60
             |                           
            
                8.70
             | 
            
                8.77
             |                     
            
                7.19
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                8.80
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.72
             |                     
            
                7.11
             |                                 
            
                20,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2020
             | 
            
                +0.20 / +2.38%
             |             
            
                8.40
             |           
            
                9.00
             |               
            
                8.40
             |                           
            
                8.60
             | 
            
                8.96
             |                     
            
                7.11
             |                                 
            
                64,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2020
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.70
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.43
             |                     
            
                6.94
             |                                 
            
                59,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2020
             | 
            
                -0.30 / -3.45%
             |             
            
                8.70
             |           
            
                9.10
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.67
             |                     
            
                6.94
             |                                 
            
                36,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/18/2020
             | 
            
                -0.30 / -3.33%
             |             
            
                9.00
             |           
            
                9.10
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.80
             |                     
            
                7.19
             |                                 
            
                12,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2020
             | 
            
                -0.50 / -5.26%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.26
             |                     
            
                7.44
             |                                 
            
                85,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2020
             | 
            
                +0.30 / +3.26%
             |             
            
                9.20
             |           
            
                9.50
             |               
            
                9.20
             |                           
            
                9.50
             | 
            
                9.38
             |                     
            
                7.85
             |                                 
            
                7,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2020
             | 
            
                +0.10 / +1.10%
             |             
            
                9.10
             |           
            
                9.60
             |               
            
                9.00
             |                           
            
                9.20
             | 
            
                9.25
             |                     
            
                7.60
             |                                 
            
                202,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.30
             |           
            
                9.60
             |               
            
                9.00
             |                           
            
                9.10
             | 
            
                9.32
             |                     
            
                7.52
             |                                 
            
                107,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2020
             | 
            
                +0.10 / +1.11%
             |             
            
                9.00
             |           
            
                9.20
             |               
            
                9.00
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                7.52
             |                                 
            
                33,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2020
             | 
            
                +0.20 / +2.27%
             |             
            
                8.80
             |           
            
                9.10
             |               
            
                8.80
             |                           
            
                9.00
             | 
            
                8.98
             |                     
            
                7.44
             |                                 
            
                44,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2020
             | 
            
                -0.10 / -1.12%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.94
             |                     
            
                7.27
             |                                 
            
                32,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2020
             | 
            
                +0.20 / +2.30%
             |             
            
                8.70
             |           
            
                9.10
             |               
            
                8.70
             |                           
            
                8.90
             | 
            
                8.92
             |                     
            
                7.35
             |                                 
            
                64,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2020
             | 
            
                +0.60 / +7.41%
             |             
            
                8.10
             |           
            
                8.80
             |               
            
                8.10
             |                           
            
                8.70
             | 
            
                8.58
             |                     
            
                7.19
             |                                 
            
                44,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |