| 
                 
                    Closing price on 2/15/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    56.70 | 
                 
                
                    | High | 
                    57.60 | 
                 
                
                    | Low | 
                    56.50 | 
                     
                
                    | Volume | 
                    1,351,010 | 
                                 
                
                    | Split-adjusted Price | 
                    43.64 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PLX Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                56.70
             |           
            
                57.60
             |               
            
                56.50
             |                           
            
                56.70
             | 
            
                57.15
             |                     
            
                43.64
             |                                 
            
                1,351,010
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2019
             | 
            
                -0.40 / -0.70%
             |             
            
                57.00
             |           
            
                57.40
             |               
            
                56.60
             |                           
            
                56.70
             | 
            
                56.93
             |                     
            
                43.64
             |                                 
            
                1,004,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2019
             | 
            
                +1.40 / +2.51%
             |             
            
                55.70
             |           
            
                57.30
             |               
            
                55.70
             |                           
            
                57.10
             | 
            
                56.58
             |                     
            
                43.95
             |                                 
            
                1,961,970
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2019
             | 
            
                +0.10 / +0.18%
             |             
            
                56.00
             |           
            
                56.30
             |               
            
                55.40
             |                           
            
                55.70
             | 
            
                55.94
             |                     
            
                42.87
             |                                 
            
                957,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2019
             | 
            
                +2.10 / +3.93%
             |             
            
                54.50
             |           
            
                55.60
             |               
            
                54.20
             |                           
            
                55.60
             | 
            
                55.06
             |                     
            
                42.79
             |                                 
            
                746,520
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2019
             | 
            
                -0.40 / -0.74%
             |             
            
                53.60
             |           
            
                54.20
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.61
             |                     
            
                41.17
             |                                 
            
                1,199,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2019
             | 
            
                +0.60 / +1.13%
             |             
            
                54.00
             |           
            
                54.60
             |               
            
                53.30
             |                           
            
                53.90
             | 
            
                53.92
             |                     
            
                41.48
             |                                 
            
                911,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2019
             | 
            
                -0.20 / -0.37%
             |             
            
                53.50
             |           
            
                53.70
             |               
            
                53.30
             |                           
            
                53.30
             | 
            
                53.45
             |                     
            
                41.02
             |                                 
            
                452,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                53.40
             |           
            
                53.60
             |               
            
                53.10
             |                           
            
                53.50
             | 
            
                53.35
             |                     
            
                41.17
             |                                 
            
                311,730
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2019
             | 
            
                -0.30 / -0.56%
             |             
            
                54.00
             |           
            
                54.20
             |               
            
                53.40
             |                           
            
                53.50
             | 
            
                53.73
             |                     
            
                41.17
             |                                 
            
                516,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2019
             | 
            
                +0.60 / +1.13%
             |             
            
                53.20
             |           
            
                53.90
             |               
            
                53.20
             |                           
            
                53.80
             | 
            
                53.69
             |                     
            
                41.41
             |                                 
            
                169,160
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                53.20
             |           
            
                53.80
             |               
            
                53.10
             |                           
            
                53.20
             | 
            
                53.27
             |                     
            
                40.94
             |                                 
            
                653,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2019
             | 
            
                -0.30 / -0.56%
             |             
            
                53.00
             |           
            
                53.90
             |               
            
                53.00
             |                           
            
                53.20
             | 
            
                53.23
             |                     
            
                40.94
             |                                 
            
                486,420
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2019
             | 
            
                -1.80 / -3.25%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                53.40
             |                           
            
                53.50
             | 
            
                54.01
             |                     
            
                41.17
             |                                 
            
                729,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2019
             | 
            
                +0.90 / +1.65%
             |             
            
                55.00
             |           
            
                55.90
             |               
            
                54.30
             |                           
            
                55.30
             | 
            
                55.16
             |                     
            
                42.56
             |                                 
            
                273,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2019
             | 
            
                -0.30 / -0.55%
             |             
            
                54.70
             |           
            
                55.20
             |               
            
                54.40
             |                           
            
                54.40
             | 
            
                54.65
             |                     
            
                41.87
             |                                 
            
                188,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2019
             | 
            
                -0.80 / -1.44%
             |             
            
                55.50
             |           
            
                55.70
             |               
            
                54.70
             |                           
            
                54.70
             | 
            
                55.16
             |                     
            
                42.10
             |                                 
            
                197,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2019
             | 
            
                +0.20 / +0.36%
             |             
            
                56.00
             |           
            
                56.30
             |               
            
                55.40
             |                           
            
                55.50
             | 
            
                55.83
             |                     
            
                42.71
             |                                 
            
                252,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2019
             | 
            
                +0.40 / +0.73%
             |             
            
                54.90
             |           
            
                55.80
             |               
            
                54.60
             |                           
            
                55.30
             | 
            
                55.28
             |                     
            
                42.56
             |                                 
            
                230,330
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2019
             | 
            
                -0.40 / -0.72%
             |             
            
                55.30
             |           
            
                55.50
             |               
            
                54.10
             |                           
            
                54.90
             | 
            
                54.81
             |                     
            
                42.25
             |                                 
            
                125,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2019
             | 
            
                +0.20 / +0.36%
             |             
            
                55.40
             |           
            
                56.00
             |               
            
                55.00
             |                           
            
                55.30
             | 
            
                55.51
             |                     
            
                42.56
             |                                 
            
                337,760
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2019
             | 
            
                +0.90 / +1.66%
             |             
            
                54.80
             |           
            
                55.30
             |               
            
                54.40
             |                           
            
                55.10
             | 
            
                54.94
             |                     
            
                42.41
             |                                 
            
                280,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2019
             | 
            
                +0.10 / +0.18%
             |             
            
                54.90
             |           
            
                55.20
             |               
            
                54.00
             |                           
            
                54.20
             | 
            
                54.49
             |                     
            
                41.71
             |                                 
            
                343,920
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2019
             | 
            
                -1.10 / -1.99%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                53.30
             |                           
            
                54.10
             | 
            
                54.00
             |                     
            
                41.64
             |                                 
            
                591,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2019
             | 
            
                +0.30 / +0.55%
             |             
            
                55.50
             |           
            
                55.70
             |               
            
                55.10
             |                           
            
                55.20
             | 
            
                55.39
             |                     
            
                42.48
             |                                 
            
                187,920
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2019
             | 
            
                +1.30 / +2.43%
             |             
            
                53.00
             |           
            
                55.20
             |               
            
                53.00
             |                           
            
                54.90
             | 
            
                54.12
             |                     
            
                42.25
             |                                 
            
                302,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2019
             | 
            
                -0.80 / -1.47%
             |             
            
                54.40
             |           
            
                55.00
             |               
            
                52.50
             |                           
            
                53.60
             | 
            
                53.71
             |                     
            
                41.25
             |                                 
            
                450,490
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2019
             | 
            
                +1.40 / +2.64%
             |             
            
                54.00
             |           
            
                55.50
             |               
            
                54.00
             |                           
            
                54.40
             | 
            
                54.80
             |                     
            
                41.87
             |                                 
            
                380,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2018
             | 
            
                -3.20 / -5.69%
             |             
            
                56.20
             |           
            
                56.40
             |               
            
                53.00
             |                           
            
                53.00
             | 
            
                54.29
             |                     
            
                40.79
             |                                 
            
                580,760
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2018
             | 
            
                +1.00 / +1.81%
             |             
            
                56.80
             |           
            
                56.80
             |               
            
                56.00
             |                           
            
                56.20
             | 
            
                56.38
             |                     
            
                43.25
             |                                 
            
                354,840
             |  
            
                 
             |                                                              
             
    
         
    
    
 |