| 
                 
                    Closing price on 7/15/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.80 | 
                 
                
                    | High | 
                    13.90 | 
                 
                
                    | Low | 
                    13.60 | 
                     
                
                    | Volume | 
                    14,600 | 
                                 
                
                    | Split-adjusted Price | 
                    9.38 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/15/2020
             | 
            
                -0.20 / -1.45%
             |             
            
                13.80
             |           
            
                13.90
             |               
            
                13.60
             |                           
            
                13.60
             | 
            
                13.74
             |                     
            
                9.38
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2020
             | 
            
                -0.40 / -2.82%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                13.80
             |                           
            
                13.80
             | 
            
                13.80
             |                     
            
                9.51
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2020
             | 
            
                +0.10 / +0.71%
             |             
            
                14.20
             |           
            
                14.20
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                9.79
             |                                 
            
                8,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2020
             | 
            
                +0.10 / +0.71%
             |             
            
                14.00
             |           
            
                14.10
             |               
            
                14.00
             |                           
            
                14.10
             | 
            
                14.03
             |                     
            
                9.72
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2020
             | 
            
                +0.20 / +1.45%
             |             
            
                13.80
             |           
            
                14.00
             |               
            
                13.80
             |                           
            
                14.00
             | 
            
                13.89
             |                     
            
                9.65
             |                                 
            
                2,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2020
             | 
            
                -0.20 / -1.43%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                13.80
             |                           
            
                13.80
             | 
            
                14.07
             |                     
            
                9.51
             |                                 
            
                11,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2020
             | 
            
                -0.30 / -2.10%
             |             
            
                14.00
             |           
            
                14.10
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.05
             |                     
            
                9.65
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2020
             | 
            
                +0.20 / +1.42%
             |             
            
                14.70
             |           
            
                14.70
             |               
            
                13.30
             |                           
            
                14.30
             | 
            
                14.06
             |                     
            
                9.86
             |                                 
            
                88,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2020
             | 
            
                -0.70 / -4.73%
             |             
            
                14.60
             |           
            
                14.60
             |               
            
                14.10
             |                           
            
                14.10
             | 
            
                14.37
             |                     
            
                9.72
             |                                 
            
                11,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2020
             | 
            
                0.00 / 0.00%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                10.20
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2020
             | 
            
                +0.50 / +3.50%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                10.20
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2020
             | 
            
                -0.70 / -4.67%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.63
             |                     
            
                9.86
             |                                 
            
                14,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2020
             | 
            
                0.00 / 0.00%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                10.34
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2020
             | 
            
                0.00 / 0.00%
             |             
            
                15.00
             |           
            
                15.10
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.01
             |                     
            
                10.34
             |                                 
            
                4,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2020
             | 
            
                +0.50 / +3.45%
             |             
            
                13.80
             |           
            
                15.00
             |               
            
                13.80
             |                           
            
                15.00
             | 
            
                14.74
             |                     
            
                10.34
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2020
             | 
            
                +0.10 / +0.69%
             |             
            
                14.20
             |           
            
                14.50
             |               
            
                14.20
             |                           
            
                14.50
             | 
            
                14.29
             |                     
            
                10.00
             |                                 
            
                12,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2020
             | 
            
                0.00 / 0.00%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.30
             |                           
            
                14.40
             | 
            
                14.35
             |                     
            
                9.93
             |                                 
            
                30,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2020
             | 
            
                -0.40 / -2.70%
             |             
            
                14.20
             |           
            
                14.50
             |               
            
                14.20
             |                           
            
                14.40
             | 
            
                14.44
             |                     
            
                9.93
             |                                 
            
                6,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2020
             | 
            
                0.00 / 0.00%
             |             
            
                14.70
             |           
            
                14.80
             |               
            
                14.70
             |                           
            
                14.80
             | 
            
                14.73
             |                     
            
                10.20
             |                                 
            
                16,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                14.20
             |           
            
                14.80
             |               
            
                14.20
             |                           
            
                14.80
             | 
            
                14.47
             |                     
            
                10.20
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2020
             | 
            
                0.00 / 0.00%
             |             
            
                14.90
             |           
            
                14.90
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.73
             |                     
            
                10.20
             |                                 
            
                5,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2020
             | 
            
                -0.10 / -0.67%
             |             
            
                14.90
             |           
            
                15.00
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.91
             |                     
            
                10.20
             |                                 
            
                9,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2020
             | 
            
                -0.60 / -3.87%
             |             
            
                14.90
             |           
            
                15.00
             |               
            
                14.90
             |                           
            
                14.90
             | 
            
                14.96
             |                     
            
                10.27
             |                                 
            
                5,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2020
             | 
            
                +0.20 / +1.31%
             |             
            
                15.00
             |           
            
                15.50
             |               
            
                15.00
             |                           
            
                15.50
             | 
            
                15.25
             |                     
            
                10.69
             |                                 
            
                36,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2020
             | 
            
                -0.20 / -1.29%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.10
             |                           
            
                15.30
             | 
            
                15.36
             |                     
            
                10.55
             |                                 
            
                59,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2020
             | 
            
                -0.40 / -2.52%
             |             
            
                15.60
             |           
            
                15.90
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.64
             |                     
            
                10.69
             |                                 
            
                31,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2020
             | 
            
                0.00 / 0.00%
             |             
            
                15.90
             |           
            
                16.20
             |               
            
                15.60
             |                           
            
                15.90
             | 
            
                15.71
             |                     
            
                10.96
             |                                 
            
                62,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2020
             | 
            
                +0.40 / +2.58%
             |             
            
                15.50
             |           
            
                16.00
             |               
            
                15.50
             |                           
            
                15.90
             | 
            
                15.63
             |                     
            
                10.96
             |                                 
            
                138,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2020
             | 
            
                -0.20 / -1.27%
             |             
            
                15.50
             |           
            
                15.60
             |               
            
                15.40
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                10.69
             |                                 
            
                44,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2020
             | 
            
                0.00 / 0.00%
             |             
            
                15.70
             |           
            
                16.00
             |               
            
                15.60
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                10.82
             |                                 
            
                128,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |