| 
                 
                    Closing price on 7/14/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    51.60 | 
                 
                
                    | High | 
                    51.80 | 
                 
                
                    | Low | 
                    51.00 | 
                     
                
                    | Volume | 
                    66,090 | 
                                 
                
                    | Split-adjusted Price | 
                    30.87 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PTB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/14/2020
             | 
            
                0.00 / 0.00%
             |             
            
                51.60
             |           
            
                51.80
             |               
            
                51.00
             |                           
            
                51.60
             | 
            
                51.31
             |                     
            
                30.87
             |                                 
            
                66,090
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2020
             | 
            
                +0.50 / +0.98%
             |             
            
                52.80
             |           
            
                52.80
             |               
            
                51.10
             |                           
            
                51.60
             | 
            
                51.62
             |                     
            
                30.87
             |                                 
            
                107,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2020
             | 
            
                +0.60 / +1.14%
             |             
            
                52.50
             |           
            
                53.80
             |               
            
                52.40
             |                           
            
                53.10
             | 
            
                52.99
             |                     
            
                30.57
             |                                 
            
                193,080
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2020
             | 
            
                +0.40 / +0.77%
             |             
            
                52.10
             |           
            
                52.70
             |               
            
                52.10
             |                           
            
                52.50
             | 
            
                52.46
             |                     
            
                30.23
             |                                 
            
                70,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2020
             | 
            
                -0.10 / -0.19%
             |             
            
                52.00
             |           
            
                52.40
             |               
            
                51.60
             |                           
            
                52.10
             | 
            
                51.99
             |                     
            
                30.00
             |                                 
            
                55,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2020
             | 
            
                +0.20 / +0.38%
             |             
            
                52.50
             |           
            
                52.80
             |               
            
                52.10
             |                           
            
                52.20
             | 
            
                52.31
             |                     
            
                30.05
             |                                 
            
                128,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2020
             | 
            
                +0.20 / +0.39%
             |             
            
                51.80
             |           
            
                52.50
             |               
            
                51.60
             |                           
            
                52.00
             | 
            
                52.20
             |                     
            
                29.94
             |                                 
            
                70,830
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2020
             | 
            
                +0.80 / +1.57%
             |             
            
                51.50
             |           
            
                52.50
             |               
            
                51.40
             |                           
            
                51.80
             | 
            
                51.83
             |                     
            
                29.82
             |                                 
            
                88,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2020
             | 
            
                +0.50 / +0.99%
             |             
            
                51.10
             |           
            
                51.20
             |               
            
                50.50
             |                           
            
                51.00
             | 
            
                50.78
             |                     
            
                29.36
             |                                 
            
                72,720
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2020
             | 
            
                +1.50 / +3.06%
             |             
            
                48.70
             |           
            
                50.50
             |               
            
                48.70
             |                           
            
                50.50
             | 
            
                49.74
             |                     
            
                29.07
             |                                 
            
                66,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                49.10
             |           
            
                50.00
             |               
            
                48.50
             |                           
            
                49.00
             | 
            
                49.07
             |                     
            
                28.21
             |                                 
            
                193,650
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2020
             | 
            
                -1.20 / -2.39%
             |             
            
                50.00
             |           
            
                50.20
             |               
            
                49.00
             |                           
            
                49.10
             | 
            
                49.28
             |                     
            
                28.27
             |                                 
            
                151,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2020
             | 
            
                +0.40 / +0.80%
             |             
            
                51.20
             |           
            
                51.20
             |               
            
                50.00
             |                           
            
                50.30
             | 
            
                50.43
             |                     
            
                28.96
             |                                 
            
                67,660
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2020
             | 
            
                -1.10 / -2.16%
             |             
            
                49.50
             |           
            
                50.40
             |               
            
                49.50
             |                           
            
                49.90
             | 
            
                49.97
             |                     
            
                28.73
             |                                 
            
                129,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2020
             | 
            
                -0.40 / -0.78%
             |             
            
                51.10
             |           
            
                51.50
             |               
            
                50.40
             |                           
            
                51.00
             | 
            
                50.99
             |                     
            
                29.36
             |                                 
            
                176,460
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2020
             | 
            
                -0.10 / -0.19%
             |             
            
                51.00
             |           
            
                52.30
             |               
            
                50.80
             |                           
            
                51.40
             | 
            
                51.24
             |                     
            
                29.59
             |                                 
            
                190,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2020
             | 
            
                -0.50 / -0.96%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                51.50
             | 
            
                51.47
             |                     
            
                29.65
             |                                 
            
                212,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2020
             | 
            
                +0.20 / +0.39%
             |             
            
                52.00
             |           
            
                53.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.15
             |                     
            
                29.94
             |                                 
            
                148,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2020
             | 
            
                -0.40 / -0.77%
             |             
            
                53.00
             |           
            
                53.50
             |               
            
                51.00
             |                           
            
                51.80
             | 
            
                52.64
             |                     
            
                29.82
             |                                 
            
                286,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2020
             | 
            
                +3.40 / +6.97%
             |             
            
                49.40
             |           
            
                52.20
             |               
            
                48.50
             |                           
            
                52.20
             | 
            
                51.62
             |                     
            
                30.05
             |                                 
            
                565,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2020
             | 
            
                +0.80 / +1.67%
             |             
            
                48.50
             |           
            
                49.00
             |               
            
                48.25
             |                           
            
                48.80
             | 
            
                48.55
             |                     
            
                28.10
             |                                 
            
                120,960
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2020
             | 
            
                -0.90 / -1.84%
             |             
            
                48.80
             |           
            
                48.80
             |               
            
                47.20
             |                           
            
                48.00
             | 
            
                47.88
             |                     
            
                27.64
             |                                 
            
                251,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2020
             | 
            
                -0.60 / -1.21%
             |             
            
                46.60
             |           
            
                49.30
             |               
            
                46.50
             |                           
            
                48.90
             | 
            
                47.63
             |                     
            
                28.15
             |                                 
            
                217,160
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2020
             | 
            
                -3.70 / -6.95%
             |             
            
                52.80
             |           
            
                53.10
             |               
            
                49.50
             |                           
            
                49.50
             | 
            
                51.28
             |                     
            
                28.50
             |                                 
            
                453,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2020
             | 
            
                -0.50 / -0.93%
             |             
            
                53.70
             |           
            
                53.70
             |               
            
                51.30
             |                           
            
                53.20
             | 
            
                52.82
             |                     
            
                30.63
             |                                 
            
                209,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2020
             | 
            
                +3.00 / +5.92%
             |             
            
                50.70
             |           
            
                54.20
             |               
            
                50.70
             |                           
            
                53.70
             | 
            
                53.43
             |                     
            
                30.92
             |                                 
            
                509,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2020
             | 
            
                +2.40 / +4.97%
             |             
            
                49.45
             |           
            
                51.00
             |               
            
                48.80
             |                           
            
                50.70
             | 
            
                49.92
             |                     
            
                29.19
             |                                 
            
                613,380
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2020
             | 
            
                +1.05 / +2.22%
             |             
            
                47.00
             |           
            
                48.40
             |               
            
                46.85
             |                           
            
                48.30
             | 
            
                47.65
             |                     
            
                27.81
             |                                 
            
                189,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2020
             | 
            
                +0.55 / +1.18%
             |             
            
                47.00
             |           
            
                47.35
             |               
            
                46.85
             |                           
            
                47.25
             | 
            
                47.14
             |                     
            
                27.20
             |                                 
            
                120,120
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2020
             | 
            
                +0.05 / +0.11%
             |             
            
                46.65
             |           
            
                47.00
             |               
            
                46.50
             |                           
            
                46.70
             | 
            
                46.63
             |                     
            
                26.89
             |                                 
            
                97,940
             |  
            
                 
             |                                                              
             
    
         
    
    
 |