| 
                 
                    Closing price on 9/11/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    67.60 | 
                 
                
                    | High | 
                    67.60 | 
                 
                
                    | Low | 
                    66.90 | 
                     
                
                    | Volume | 
                    534,390 | 
                                 
                
                    | Split-adjusted Price | 
                    49.12 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PLX Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/11/2017
             | 
            
                +0.10 / +0.15%
             |             
            
                67.60
             |           
            
                67.60
             |               
            
                66.90
             |                           
            
                67.00
             | 
            
                67.08
             |                     
            
                49.12
             |                                 
            
                534,390
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2017
             | 
            
                +0.10 / +0.15%
             |             
            
                66.80
             |           
            
                67.90
             |               
            
                66.50
             |                           
            
                66.90
             | 
            
                67.20
             |                     
            
                49.05
             |                                 
            
                763,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2017
             | 
            
                -0.20 / -0.30%
             |             
            
                67.00
             |           
            
                67.30
             |               
            
                66.80
             |                           
            
                66.80
             | 
            
                66.99
             |                     
            
                48.98
             |                                 
            
                600,970
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                67.00
             |           
            
                67.30
             |               
            
                66.50
             |                           
            
                67.00
             | 
            
                66.97
             |                     
            
                49.12
             |                                 
            
                545,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2017
             | 
            
                +0.20 / +0.30%
             |             
            
                67.50
             |           
            
                67.90
             |               
            
                66.90
             |                           
            
                67.00
             | 
            
                67.25
             |                     
            
                49.12
             |                                 
            
                827,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2017
             | 
            
                0.00 / 0.00%
             |             
            
                66.80
             |           
            
                67.10
             |               
            
                66.20
             |                           
            
                66.80
             | 
            
                66.63
             |                     
            
                48.98
             |                                 
            
                257,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2017
             | 
            
                -0.20 / -0.30%
             |             
            
                67.00
             |           
            
                67.70
             |               
            
                66.60
             |                           
            
                66.80
             | 
            
                67.07
             |                     
            
                48.98
             |                                 
            
                423,980
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2017
             | 
            
                -1.00 / -1.47%
             |             
            
                67.70
             |           
            
                68.00
             |               
            
                67.00
             |                           
            
                67.00
             | 
            
                67.39
             |                     
            
                49.12
             |                                 
            
                377,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2017
             | 
            
                -0.30 / -0.44%
             |             
            
                68.10
             |           
            
                68.70
             |               
            
                67.80
             |                           
            
                68.00
             | 
            
                68.34
             |                     
            
                49.86
             |                                 
            
                564,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2017
             | 
            
                +0.80 / +1.19%
             |             
            
                67.50
             |           
            
                68.50
             |               
            
                67.30
             |                           
            
                68.30
             | 
            
                68.12
             |                     
            
                50.08
             |                                 
            
                959,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2017
             | 
            
                -0.10 / -0.15%
             |             
            
                67.60
             |           
            
                68.40
             |               
            
                67.30
             |                           
            
                67.50
             | 
            
                67.80
             |                     
            
                49.49
             |                                 
            
                521,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2017
             | 
            
                +0.90 / +1.35%
             |             
            
                66.60
             |           
            
                67.80
             |               
            
                66.40
             |                           
            
                67.60
             | 
            
                67.40
             |                     
            
                49.56
             |                                 
            
                1,065,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2017
             | 
            
                0.00 / 0.00%
             |             
            
                66.30
             |           
            
                66.80
             |               
            
                66.20
             |                           
            
                66.70
             | 
            
                66.50
             |                     
            
                48.90
             |                                 
            
                303,940
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2017
             | 
            
                -0.60 / -0.89%
             |             
            
                67.70
             |           
            
                67.80
             |               
            
                66.30
             |                           
            
                66.70
             | 
            
                67.04
             |                     
            
                48.90
             |                                 
            
                411,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2017
             | 
            
                +1.20 / +1.82%
             |             
            
                67.00
             |           
            
                67.90
             |               
            
                66.80
             |                           
            
                67.30
             | 
            
                67.45
             |                     
            
                49.34
             |                                 
            
                1,645,250
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2017
             | 
            
                +0.30 / +0.46%
             |             
            
                65.80
             |           
            
                66.40
             |               
            
                65.70
             |                           
            
                66.10
             | 
            
                66.04
             |                     
            
                48.47
             |                                 
            
                307,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2017
             | 
            
                -0.30 / -0.45%
             |             
            
                66.10
             |           
            
                66.30
             |               
            
                65.80
             |                           
            
                65.80
             | 
            
                66.09
             |                     
            
                48.25
             |                                 
            
                222,030
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2017
             | 
            
                -0.20 / -0.30%
             |             
            
                66.30
             |           
            
                66.70
             |               
            
                65.50
             |                           
            
                66.10
             | 
            
                66.39
             |                     
            
                48.47
             |                                 
            
                598,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2017
             | 
            
                +0.30 / +0.45%
             |             
            
                66.30
             |           
            
                66.30
             |               
            
                65.50
             |                           
            
                66.30
             | 
            
                66.00
             |                     
            
                48.61
             |                                 
            
                289,720
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2017
             | 
            
                +1.50 / +2.33%
             |             
            
                64.50
             |           
            
                66.20
             |               
            
                64.20
             |                           
            
                66.00
             | 
            
                65.50
             |                     
            
                48.39
             |                                 
            
                284,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2017
             | 
            
                -0.70 / -1.07%
             |             
            
                65.00
             |           
            
                65.90
             |               
            
                64.20
             |                           
            
                64.50
             | 
            
                64.83
             |                     
            
                47.29
             |                                 
            
                206,140
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2017
             | 
            
                -0.60 / -0.91%
             |             
            
                65.00
             |           
            
                66.00
             |               
            
                64.80
             |                           
            
                65.20
             | 
            
                65.32
             |                     
            
                47.81
             |                                 
            
                303,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2017
             | 
            
                -1.70 / -2.52%
             |             
            
                67.50
             |           
            
                68.00
             |               
            
                65.50
             |                           
            
                65.80
             | 
            
                66.17
             |                     
            
                48.25
             |                                 
            
                719,190
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2017
             | 
            
                +0.70 / +1.05%
             |             
            
                66.80
             |           
            
                69.00
             |               
            
                66.80
             |                           
            
                67.50
             | 
            
                67.90
             |                     
            
                49.49
             |                                 
            
                1,367,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2017
             | 
            
                +3.20 / +5.03%
             |             
            
                63.60
             |           
            
                66.80
             |               
            
                63.50
             |                           
            
                66.80
             | 
            
                65.80
             |                     
            
                48.98
             |                                 
            
                1,668,590
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2017
             | 
            
                +0.60 / +0.95%
             |             
            
                62.80
             |           
            
                63.90
             |               
            
                62.70
             |                           
            
                63.60
             | 
            
                63.38
             |                     
            
                46.63
             |                                 
            
                535,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2017
             | 
            
                -0.20 / -0.32%
             |             
            
                63.00
             |           
            
                63.20
             |               
            
                62.70
             |                           
            
                63.00
             | 
            
                62.92
             |                     
            
                46.19
             |                                 
            
                351,860
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2017
             | 
            
                +0.20 / +0.32%
             |             
            
                62.80
             |           
            
                63.50
             |               
            
                62.10
             |                           
            
                63.20
             | 
            
                63.05
             |                     
            
                46.34
             |                                 
            
                367,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2017
             | 
            
                +0.20 / +0.32%
             |             
            
                62.20
             |           
            
                63.70
             |               
            
                62.20
             |                           
            
                63.00
             | 
            
                62.85
             |                     
            
                46.19
             |                                 
            
                440,960
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2017
             | 
            
                -1.40 / -2.18%
             |             
            
                64.00
             |           
            
                64.00
             |               
            
                62.80
             |                           
            
                62.80
             | 
            
                63.32
             |                     
            
                46.05
             |                                 
            
                291,180
             |  
            
                 
             |                                                              
             
    
         
    
    
 |