| 
                 
                    Closing price on 9/20/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    24.45 | 
                 
                
                    | High | 
                    24.45 | 
                 
                
                    | Low | 
                    23.60 | 
                     
                
                    | Volume | 
                    4,619,110 | 
                                 
                
                    | Split-adjusted Price | 
                    14.87 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
NT2 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/20/2019
             | 
            
                -0.85 / -3.48%
             |             
            
                24.45
             |           
            
                24.45
             |               
            
                23.60
             |                           
            
                23.60
             | 
            
                23.74
             |                     
            
                14.87
             |                                 
            
                4,619,110
             |            
            
                 
             |                                       
         
    
        
            | 
                9/19/2019
             | 
            
                -0.15 / -0.61%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.40
             |                           
            
                24.45
             | 
            
                24.49
             |                     
            
                15.41
             |                                 
            
                205,180
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.40
             |           
            
                24.60
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.49
             |                     
            
                15.50
             |                                 
            
                119,650
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2019
             | 
            
                -0.10 / -0.40%
             |             
            
                24.70
             |           
            
                24.70
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.52
             |                     
            
                15.50
             |                                 
            
                149,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2019
             | 
            
                -0.30 / -1.20%
             |             
            
                25.00
             |           
            
                25.05
             |               
            
                24.65
             |                           
            
                24.70
             | 
            
                24.90
             |                     
            
                15.56
             |                                 
            
                205,290
             |            
            
                 
             |                                       
         
    
        
            | 
                9/13/2019
             | 
            
                -0.05 / -0.20%
             |             
            
                25.05
             |           
            
                25.05
             |               
            
                24.90
             |                           
            
                25.00
             | 
            
                24.98
             |                     
            
                15.75
             |                                 
            
                147,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/12/2019
             | 
            
                +0.05 / +0.20%
             |             
            
                25.00
             |           
            
                25.20
             |               
            
                24.95
             |                           
            
                25.05
             | 
            
                25.00
             |                     
            
                15.78
             |                                 
            
                299,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2019
             | 
            
                -0.30 / -1.19%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                24.95
             |                           
            
                25.00
             | 
            
                25.09
             |                     
            
                15.75
             |                                 
            
                309,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                25.15
             |           
            
                25.45
             |               
            
                25.05
             |                           
            
                25.30
             | 
            
                25.29
             |                     
            
                15.94
             |                                 
            
                306,870
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2019
             | 
            
                +0.10 / +0.40%
             |             
            
                25.15
             |           
            
                25.40
             |               
            
                25.10
             |                           
            
                25.30
             | 
            
                25.25
             |                     
            
                15.94
             |                                 
            
                81,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/6/2019
             | 
            
                -0.10 / -0.40%
             |             
            
                25.30
             |           
            
                25.45
             |               
            
                25.15
             |                           
            
                25.20
             | 
            
                25.22
             |                     
            
                15.88
             |                                 
            
                28,070
             |            
            
                 
             |                                       
         
    
        
            | 
                9/5/2019
             | 
            
                +0.20 / +0.80%
             |             
            
                25.10
             |           
            
                25.60
             |               
            
                25.05
             |                           
            
                25.30
             | 
            
                25.28
             |                     
            
                15.94
             |                                 
            
                89,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2019
             | 
            
                -0.30 / -1.18%
             |             
            
                25.60
             |           
            
                25.60
             |               
            
                25.10
             |                           
            
                25.10
             | 
            
                25.18
             |                     
            
                15.81
             |                                 
            
                65,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2019
             | 
            
                -0.10 / -0.39%
             |             
            
                25.60
             |           
            
                25.80
             |               
            
                25.40
             |                           
            
                25.40
             | 
            
                25.51
             |                     
            
                16.00
             |                                 
            
                94,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2019
             | 
            
                +0.30 / +1.19%
             |             
            
                25.30
             |           
            
                25.50
             |               
            
                25.30
             |                           
            
                25.50
             | 
            
                25.43
             |                     
            
                16.07
             |                                 
            
                78,280
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2019
             | 
            
                +0.10 / +0.40%
             |             
            
                25.10
             |           
            
                25.20
             |               
            
                25.05
             |                           
            
                25.20
             | 
            
                25.10
             |                     
            
                15.88
             |                                 
            
                58,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2019
             | 
            
                +0.15 / +0.60%
             |             
            
                24.95
             |           
            
                25.50
             |               
            
                24.85
             |                           
            
                25.10
             | 
            
                25.26
             |                     
            
                15.81
             |                                 
            
                108,570
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2019
             | 
            
                +0.05 / +0.20%
             |             
            
                24.90
             |           
            
                25.05
             |               
            
                24.90
             |                           
            
                24.95
             | 
            
                24.98
             |                     
            
                15.72
             |                                 
            
                99,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.80
             |           
            
                25.00
             |               
            
                24.70
             |                           
            
                24.90
             | 
            
                24.95
             |                     
            
                15.69
             |                                 
            
                115,380
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2019
             | 
            
                +0.05 / +0.20%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                24.75
             |                           
            
                24.90
             | 
            
                24.94
             |                     
            
                15.69
             |                                 
            
                181,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.85
             |           
            
                24.85
             |               
            
                24.70
             |                           
            
                24.85
             | 
            
                24.82
             |                     
            
                15.66
             |                                 
            
                129,810
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2019
             | 
            
                -0.15 / -0.60%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                24.80
             |                           
            
                24.85
             | 
            
                24.93
             |                     
            
                15.66
             |                                 
            
                314,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2019
             | 
            
                +0.35 / +1.42%
             |             
            
                24.65
             |           
            
                25.10
             |               
            
                24.60
             |                           
            
                25.00
             | 
            
                24.89
             |                     
            
                15.75
             |                                 
            
                192,910
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                24.85
             |           
            
                24.85
             |               
            
                24.60
             |                           
            
                24.65
             | 
            
                24.67
             |                     
            
                15.53
             |                                 
            
                101,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2019
             | 
            
                +0.05 / +0.20%
             |             
            
                24.60
             |           
            
                24.95
             |               
            
                24.60
             |                           
            
                24.65
             | 
            
                24.66
             |                     
            
                15.53
             |                                 
            
                208,510
             |            
            
                 
             |                                       
         
    
        
            | 
                8/15/2019
             | 
            
                -0.20 / -0.81%
             |             
            
                24.20
             |           
            
                25.00
             |               
            
                24.20
             |                           
            
                24.60
             | 
            
                24.73
             |                     
            
                15.50
             |                                 
            
                217,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2019
             | 
            
                -0.10 / -0.40%
             |             
            
                25.05
             |           
            
                25.05
             |               
            
                24.70
             |                           
            
                24.80
             | 
            
                24.84
             |                     
            
                15.63
             |                                 
            
                94,220
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2019
             | 
            
                +0.30 / +1.22%
             |             
            
                24.70
             |           
            
                25.00
             |               
            
                24.60
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                15.69
             |                                 
            
                164,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2019
             | 
            
                +0.25 / +1.03%
             |             
            
                24.40
             |           
            
                24.80
             |               
            
                24.40
             |                           
            
                24.60
             | 
            
                24.58
             |                     
            
                15.50
             |                                 
            
                87,950
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2019
             | 
            
                +0.10 / +0.41%
             |             
            
                24.25
             |           
            
                24.65
             |               
            
                24.25
             |                           
            
                24.35
             | 
            
                24.36
             |                     
            
                15.34
             |                                 
            
                250,530
             |  
            
                 
             |                                                              
             
    
         
    
    
 |