| 
                 
                    Closing price on 4/26/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    22.70 | 
                 
                
                    | High | 
                    23.30 | 
                 
                
                    | Low | 
                    22.70 | 
                     
                
                    | Volume | 
                    2,151,900 | 
                                 
                
                    | Split-adjusted Price | 
                    18.91 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/26/2019
             | 
            
                +0.10 / +0.43%
             |             
            
                22.70
             |           
            
                23.30
             |               
            
                22.70
             |                           
            
                23.30
             | 
            
                23.14
             |                     
            
                18.91
             |                                 
            
                2,151,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2019
             | 
            
                -0.10 / -0.43%
             |             
            
                23.30
             |           
            
                23.30
             |               
            
                23.00
             |                           
            
                23.20
             | 
            
                23.10
             |                     
            
                18.83
             |                                 
            
                1,484,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2019
             | 
            
                +0.40 / +1.75%
             |             
            
                22.80
             |           
            
                23.50
             |               
            
                22.80
             |                           
            
                23.30
             | 
            
                23.26
             |                     
            
                18.91
             |                                 
            
                3,002,769
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2019
             | 
            
                +0.10 / +0.44%
             |             
            
                23.00
             |           
            
                23.20
             |               
            
                22.80
             |                           
            
                22.90
             | 
            
                23.04
             |                     
            
                18.59
             |                                 
            
                2,226,854
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2019
             | 
            
                +0.50 / +2.24%
             |             
            
                22.50
             |           
            
                23.20
             |               
            
                22.30
             |                           
            
                22.80
             | 
            
                22.69
             |                     
            
                18.51
             |                                 
            
                3,250,226
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                22.40
             |           
            
                22.60
             |               
            
                22.30
             |                           
            
                22.30
             | 
            
                22.44
             |                     
            
                18.10
             |                                 
            
                1,271,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2019
             | 
            
                -0.50 / -2.19%
             |             
            
                22.70
             |           
            
                22.90
             |               
            
                21.90
             |                           
            
                22.30
             | 
            
                22.43
             |                     
            
                18.10
             |                                 
            
                4,165,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2019
             | 
            
                -0.40 / -1.72%
             |             
            
                23.20
             |           
            
                23.70
             |               
            
                22.80
             |                           
            
                22.80
             | 
            
                23.42
             |                     
            
                18.51
             |                                 
            
                5,745,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2019
             | 
            
                -0.10 / -0.43%
             |             
            
                23.30
             |           
            
                23.30
             |               
            
                22.70
             |                           
            
                23.20
             | 
            
                22.97
             |                     
            
                18.83
             |                                 
            
                3,944,114
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2019
             | 
            
                +0.50 / +2.19%
             |             
            
                22.70
             |           
            
                23.30
             |               
            
                22.40
             |                           
            
                23.30
             | 
            
                22.88
             |                     
            
                18.91
             |                                 
            
                3,277,007
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2019
             | 
            
                -0.40 / -1.72%
             |             
            
                23.30
             |           
            
                23.40
             |               
            
                22.80
             |                           
            
                22.80
             | 
            
                23.06
             |                     
            
                18.51
             |                                 
            
                2,904,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2019
             | 
            
                +0.70 / +3.11%
             |             
            
                22.30
             |           
            
                23.40
             |               
            
                22.00
             |                           
            
                23.20
             | 
            
                22.82
             |                     
            
                18.83
             |                                 
            
                6,405,747
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2019
             | 
            
                -1.00 / -4.26%
             |             
            
                23.70
             |           
            
                24.00
             |               
            
                22.50
             |                           
            
                22.50
             | 
            
                23.08
             |                     
            
                18.27
             |                                 
            
                7,800,032
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2019
             | 
            
                +1.10 / +4.91%
             |             
            
                22.60
             |           
            
                23.50
             |               
            
                22.60
             |                           
            
                23.50
             | 
            
                23.18
             |                     
            
                19.08
             |                                 
            
                8,094,127
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2019
             | 
            
                +0.40 / +1.82%
             |             
            
                22.00
             |           
            
                22.50
             |               
            
                21.90
             |                           
            
                22.40
             | 
            
                22.28
             |                     
            
                18.18
             |                                 
            
                4,343,935
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                22.10
             |           
            
                22.50
             |               
            
                21.90
             |                           
            
                22.00
             | 
            
                22.20
             |                     
            
                17.86
             |                                 
            
                3,415,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2019
             | 
            
                +0.80 / +3.77%
             |             
            
                21.40
             |           
            
                22.40
             |               
            
                21.20
             |                           
            
                22.00
             | 
            
                21.83
             |                     
            
                17.86
             |                                 
            
                8,520,483
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2019
             | 
            
                +0.20 / +0.95%
             |             
            
                21.20
             |           
            
                21.50
             |               
            
                20.90
             |                           
            
                21.20
             | 
            
                21.31
             |                     
            
                17.21
             |                                 
            
                3,739,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2019
             | 
            
                +0.40 / +1.94%
             |             
            
                20.80
             |           
            
                21.10
             |               
            
                20.70
             |                           
            
                21.00
             | 
            
                20.96
             |                     
            
                17.05
             |                                 
            
                2,079,690
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2019
             | 
            
                -0.10 / -0.48%
             |             
            
                20.80
             |           
            
                21.00
             |               
            
                20.60
             |                           
            
                20.60
             | 
            
                20.82
             |                     
            
                16.72
             |                                 
            
                2,525,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2019
             | 
            
                +0.10 / +0.49%
             |             
            
                20.60
             |           
            
                20.70
             |               
            
                20.40
             |                           
            
                20.70
             | 
            
                20.61
             |                     
            
                16.80
             |                                 
            
                2,211,700
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2019
             | 
            
                +0.20 / +0.98%
             |             
            
                22.00
             |           
            
                22.00
             |               
            
                20.50
             |                           
            
                20.60
             | 
            
                20.66
             |                     
            
                16.72
             |                                 
            
                1,578,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2019
             | 
            
                +0.30 / +1.49%
             |             
            
                20.40
             |           
            
                20.50
             |               
            
                19.90
             |                           
            
                20.40
             | 
            
                20.22
             |                     
            
                16.56
             |                                 
            
                2,362,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2019
             | 
            
                -0.90 / -4.29%
             |             
            
                20.50
             |           
            
                20.50
             |               
            
                19.90
             |                           
            
                20.10
             | 
            
                20.18
             |                     
            
                16.32
             |                                 
            
                3,856,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2019
             | 
            
                +0.20 / +0.96%
             |             
            
                20.90
             |           
            
                21.10
             |               
            
                20.50
             |                           
            
                21.00
             | 
            
                20.90
             |                     
            
                17.05
             |                                 
            
                3,880,450
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2019
             | 
            
                -1.30 / -5.88%
             |             
            
                22.10
             |           
            
                22.40
             |               
            
                20.80
             |                           
            
                20.80
             | 
            
                21.60
             |                     
            
                16.89
             |                                 
            
                3,293,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                21.70
             |           
            
                22.10
             |               
            
                21.50
             |                           
            
                22.10
             | 
            
                21.79
             |                     
            
                17.94
             |                                 
            
                3,562,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2019
             | 
            
                +0.40 / +1.84%
             |             
            
                21.80
             |           
            
                22.60
             |               
            
                21.80
             |                           
            
                22.10
             | 
            
                22.18
             |                     
            
                17.94
             |                                 
            
                6,237,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2019
             | 
            
                +0.10 / +0.46%
             |             
            
                21.60
             |           
            
                21.90
             |               
            
                21.50
             |                           
            
                21.70
             | 
            
                21.66
             |                     
            
                17.62
             |                                 
            
                2,373,061
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2019
             | 
            
                +0.30 / +1.41%
             |             
            
                21.30
             |           
            
                21.70
             |               
            
                21.10
             |                           
            
                21.60
             | 
            
                21.51
             |                     
            
                17.53
             |                                 
            
                3,165,400
             |  
            
                 
             |                                                              
             
    
         
    
    
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