| 
                 
                    Closing price on 1/21/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    68.20 | 
                 
                
                    | High | 
                    68.20 | 
                 
                
                    | Low | 
                    67.60 | 
                     
                
                    | Volume | 
                    65,750 | 
                                 
                
                    | Split-adjusted Price | 
                    38.35 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PTB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/21/2020
             | 
            
                +0.20 / +0.29%
             |             
            
                68.20
             |           
            
                68.20
             |               
            
                67.60
             |                           
            
                68.20
             | 
            
                67.88
             |                     
            
                38.35
             |                                 
            
                65,750
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2020
             | 
            
                +0.70 / +1.04%
             |             
            
                68.50
             |           
            
                68.50
             |               
            
                67.00
             |                           
            
                68.00
             | 
            
                67.46
             |                     
            
                38.24
             |                                 
            
                59,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2020
             | 
            
                -0.20 / -0.30%
             |             
            
                67.50
             |           
            
                67.50
             |               
            
                66.80
             |                           
            
                67.30
             | 
            
                67.11
             |                     
            
                37.84
             |                                 
            
                67,380
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2020
             | 
            
                -0.40 / -0.59%
             |             
            
                68.00
             |           
            
                68.00
             |               
            
                67.50
             |                           
            
                67.50
             | 
            
                67.77
             |                     
            
                37.96
             |                                 
            
                36,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2020
             | 
            
                +0.40 / +0.59%
             |             
            
                67.50
             |           
            
                67.90
             |               
            
                66.50
             |                           
            
                67.90
             | 
            
                67.10
             |                     
            
                38.18
             |                                 
            
                97,680
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2020
             | 
            
                -0.20 / -0.30%
             |             
            
                67.70
             |           
            
                67.70
             |               
            
                66.60
             |                           
            
                67.50
             | 
            
                67.18
             |                     
            
                37.96
             |                                 
            
                46,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2020
             | 
            
                -0.20 / -0.29%
             |             
            
                67.90
             |           
            
                67.90
             |               
            
                66.70
             |                           
            
                67.70
             | 
            
                67.35
             |                     
            
                38.07
             |                                 
            
                32,130
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2020
             | 
            
                -0.10 / -0.15%
             |             
            
                68.40
             |           
            
                68.40
             |               
            
                66.50
             |                           
            
                67.90
             | 
            
                67.15
             |                     
            
                38.18
             |                                 
            
                67,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2020
             | 
            
                +1.00 / +1.49%
             |             
            
                68.30
             |           
            
                68.30
             |               
            
                67.00
             |                           
            
                68.00
             | 
            
                67.45
             |                     
            
                38.24
             |                                 
            
                43,680
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2020
             | 
            
                -2.40 / -3.46%
             |             
            
                68.50
             |           
            
                68.60
             |               
            
                67.00
             |                           
            
                67.00
             | 
            
                67.66
             |                     
            
                37.67
             |                                 
            
                120,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2020
             | 
            
                -0.50 / -0.72%
             |             
            
                69.90
             |           
            
                69.90
             |               
            
                68.50
             |                           
            
                69.40
             | 
            
                69.10
             |                     
            
                39.02
             |                                 
            
                45,440
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2020
             | 
            
                -1.30 / -1.83%
             |             
            
                71.20
             |           
            
                71.20
             |               
            
                69.90
             |                           
            
                69.90
             | 
            
                70.22
             |                     
            
                39.31
             |                                 
            
                50,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2020
             | 
            
                +0.20 / +0.28%
             |             
            
                71.00
             |           
            
                71.90
             |               
            
                70.60
             |                           
            
                71.20
             | 
            
                71.22
             |                     
            
                40.04
             |                                 
            
                64,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2020
             | 
            
                +1.00 / +1.43%
             |             
            
                70.00
             |           
            
                71.20
             |               
            
                70.00
             |                           
            
                71.00
             | 
            
                70.72
             |                     
            
                39.92
             |                                 
            
                12,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/31/2019
             | 
            
                -0.50 / -0.71%
             |             
            
                70.20
             |           
            
                71.50
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.20
             |                     
            
                39.36
             |                                 
            
                62,420
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2019
             | 
            
                -0.50 / -0.70%
             |             
            
                71.00
             |           
            
                71.40
             |               
            
                70.50
             |                           
            
                70.50
             | 
            
                70.88
             |                     
            
                39.64
             |                                 
            
                74,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                71.00
             |           
            
                71.00
             |               
            
                70.50
             |                           
            
                71.00
             | 
            
                70.92
             |                     
            
                39.92
             |                                 
            
                11,760
             |            
            
                 
             |                                       
         
    
        
            | 
                12/26/2019
             | 
            
                +0.50 / +0.71%
             |             
            
                70.40
             |           
            
                71.20
             |               
            
                69.50
             |                           
            
                71.00
             | 
            
                70.86
             |                     
            
                39.92
             |                                 
            
                14,380
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/25/2019
             | 
            
                -0.30 / -0.42%
             |             
            
                70.00
             |           
            
                71.00
             |               
            
                70.00
             |                           
            
                70.50
             | 
            
                70.66
             |                     
            
                39.64
             |                                 
            
                14,590
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2019
             | 
            
                +1.50 / +2.16%
             |             
            
                70.00
             |           
            
                70.80
             |               
            
                68.30
             |                           
            
                70.80
             | 
            
                69.35
             |                     
            
                39.81
             |                                 
            
                74,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2019
             | 
            
                -2.70 / -3.75%
             |             
            
                72.00
             |           
            
                72.20
             |               
            
                69.30
             |                           
            
                69.30
             | 
            
                70.35
             |                     
            
                38.97
             |                                 
            
                97,410
             |            
            
                 
             |                                       
         
    
        
            | 
                12/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                71.00
             |           
            
                72.00
             |               
            
                71.00
             |                           
            
                72.00
             | 
            
                71.51
             |                     
            
                40.49
             |                                 
            
                13,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/19/2019
             | 
            
                +1.10 / +1.55%
             |             
            
                70.90
             |           
            
                72.10
             |               
            
                70.10
             |                           
            
                72.00
             | 
            
                71.03
             |                     
            
                40.49
             |                                 
            
                34,030
             |            
            
                 
             |                                       
         
    
        
            | 
                12/18/2019
             | 
            
                -0.10 / -0.14%
             |             
            
                71.00
             |           
            
                71.40
             |               
            
                70.10
             |                           
            
                70.90
             | 
            
                70.74
             |                     
            
                39.87
             |                                 
            
                96,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/17/2019
             | 
            
                -1.50 / -2.07%
             |             
            
                71.50
             |           
            
                72.70
             |               
            
                71.00
             |                           
            
                71.00
             | 
            
                71.69
             |                     
            
                39.92
             |                                 
            
                66,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/16/2019
             | 
            
                -0.20 / -0.28%
             |             
            
                72.60
             |           
            
                72.80
             |               
            
                72.40
             |                           
            
                72.50
             | 
            
                72.53
             |                     
            
                40.77
             |                                 
            
                21,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/13/2019
             | 
            
                -0.20 / -0.27%
             |             
            
                72.80
             |           
            
                73.00
             |               
            
                72.60
             |                           
            
                72.70
             | 
            
                72.74
             |                     
            
                40.88
             |                                 
            
                37,860
             |            
            
                 
             |                                       
         
    
        
            | 
                12/12/2019
             | 
            
                -0.10 / -0.14%
             |             
            
                73.00
             |           
            
                73.00
             |               
            
                72.80
             |                           
            
                72.90
             | 
            
                72.97
             |                     
            
                40.99
             |                                 
            
                29,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                73.20
             |           
            
                73.20
             |               
            
                72.80
             |                           
            
                73.00
             | 
            
                73.05
             |                     
            
                41.05
             |                                 
            
                4,750
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2019
             | 
            
                -0.10 / -0.14%
             |             
            
                73.10
             |           
            
                74.00
             |               
            
                72.80
             |                           
            
                73.00
             | 
            
                73.02
             |                     
            
                41.05
             |                                 
            
                19,160
             |  
            
                 
             |                                                              
             
    
         
    
    
 |