| 
                 
                    Closing price on 7/23/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.30 | 
                 
                
                    | High | 
                    17.80 | 
                 
                
                    | Low | 
                    17.20 | 
                     
                
                    | Volume | 
                    9,200 | 
                                 
                
                    | Split-adjusted Price | 
                    13.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.30
             |           
            
                17.80
             |               
            
                17.20
             |                           
            
                17.80
             | 
            
                17.50
             |                     
            
                13.68
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2021
             | 
            
                +0.30 / +1.71%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                17.20
             |                           
            
                17.80
             | 
            
                17.50
             |                     
            
                13.68
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.50
             |                     
            
                13.45
             |                                 
            
                3,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2021
             | 
            
                +0.50 / +2.94%
             |             
            
                17.00
             |           
            
                17.90
             |               
            
                17.00
             |                           
            
                17.50
             | 
            
                17.20
             |                     
            
                13.45
             |                                 
            
                11,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2021
             | 
            
                -0.40 / -2.30%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.16
             |                     
            
                13.07
             |                                 
            
                27,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2021
             | 
            
                -0.10 / -0.57%
             |             
            
                17.40
             |           
            
                17.50
             |               
            
                17.30
             |                           
            
                17.40
             | 
            
                17.37
             |                     
            
                13.38
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2021
             | 
            
                -0.30 / -1.69%
             |             
            
                17.30
             |           
            
                17.80
             |               
            
                17.20
             |                           
            
                17.50
             | 
            
                17.61
             |                     
            
                13.45
             |                                 
            
                4,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.10
             |                           
            
                17.80
             | 
            
                17.22
             |                     
            
                13.68
             |                                 
            
                14,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2021
             | 
            
                +0.30 / +1.71%
             |             
            
                17.50
             |           
            
                17.80
             |               
            
                17.50
             |                           
            
                17.80
             | 
            
                17.50
             |                     
            
                13.68
             |                                 
            
                6,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2021
             | 
            
                -0.60 / -3.31%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.77
             |                     
            
                13.45
             |                                 
            
                54,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2021
             | 
            
                -0.10 / -0.55%
             |             
            
                18.00
             |           
            
                18.60
             |               
            
                18.00
             |                           
            
                18.10
             | 
            
                18.21
             |                     
            
                13.91
             |                                 
            
                32,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2021
             | 
            
                -0.10 / -0.55%
             |             
            
                18.30
             |           
            
                18.50
             |               
            
                18.10
             |                           
            
                18.20
             | 
            
                18.33
             |                     
            
                13.99
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2021
             | 
            
                -0.70 / -3.68%
             |             
            
                18.80
             |           
            
                18.80
             |               
            
                18.00
             |                           
            
                18.30
             | 
            
                18.18
             |                     
            
                14.07
             |                                 
            
                38,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2021
             | 
            
                +0.30 / +1.60%
             |             
            
                18.70
             |           
            
                19.20
             |               
            
                18.70
             |                           
            
                19.00
             | 
            
                19.01
             |                     
            
                14.61
             |                                 
            
                30,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2021
             | 
            
                -0.10 / -0.53%
             |             
            
                19.10
             |           
            
                19.10
             |               
            
                18.70
             |                           
            
                18.70
             | 
            
                18.79
             |                     
            
                14.38
             |                                 
            
                9,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2021
             | 
            
                +0.20 / +1.08%
             |             
            
                18.60
             |           
            
                18.80
             |               
            
                18.60
             |                           
            
                18.80
             | 
            
                18.72
             |                     
            
                14.45
             |                                 
            
                43,152
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2021
             | 
            
                +0.10 / +0.54%
             |             
            
                18.50
             |           
            
                18.80
             |               
            
                18.50
             |                           
            
                18.60
             | 
            
                18.59
             |                     
            
                14.30
             |                                 
            
                26,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2021
             | 
            
                +0.20 / +1.09%
             |             
            
                18.30
             |           
            
                18.60
             |               
            
                18.30
             |                           
            
                18.50
             | 
            
                18.57
             |                     
            
                14.22
             |                                 
            
                11,931
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2021
             | 
            
                -0.50 / -2.66%
             |             
            
                18.60
             |           
            
                18.70
             |               
            
                18.30
             |                           
            
                18.30
             | 
            
                18.57
             |                     
            
                14.07
             |                                 
            
                30,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2021
             | 
            
                +0.10 / +0.53%
             |             
            
                18.80
             |           
            
                19.20
             |               
            
                18.70
             |                           
            
                18.80
             | 
            
                18.81
             |                     
            
                14.45
             |                                 
            
                18,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2021
             | 
            
                -0.30 / -1.58%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                18.70
             |                           
            
                18.70
             | 
            
                18.73
             |                     
            
                14.38
             |                                 
            
                16,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2021
             | 
            
                -0.50 / -2.56%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                18.70
             |                           
            
                19.00
             | 
            
                19.01
             |                     
            
                14.61
             |                                 
            
                33,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2021
             | 
            
                -0.30 / -1.52%
             |             
            
                19.80
             |           
            
                20.00
             |               
            
                19.50
             |                           
            
                19.50
             | 
            
                19.62
             |                     
            
                14.99
             |                                 
            
                31,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2021
             | 
            
                +0.20 / +0.97%
             |             
            
                20.80
             |           
            
                21.00
             |               
            
                20.60
             |                           
            
                20.80
             | 
            
                20.76
             |                     
            
                15.22
             |                                 
            
                73,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2021
             | 
            
                +0.10 / +0.49%
             |             
            
                20.50
             |           
            
                20.90
             |               
            
                20.50
             |                           
            
                20.60
             | 
            
                20.68
             |                     
            
                15.08
             |                                 
            
                63,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2021
             | 
            
                -0.10 / -0.49%
             |             
            
                20.60
             |           
            
                20.60
             |               
            
                20.10
             |                           
            
                20.50
             | 
            
                20.18
             |                     
            
                15.00
             |                                 
            
                69,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2021
             | 
            
                +0.20 / +0.98%
             |             
            
                20.40
             |           
            
                20.70
             |               
            
                20.20
             |                           
            
                20.60
             | 
            
                20.43
             |                     
            
                15.08
             |                                 
            
                48,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2021
             | 
            
                +0.60 / +3.03%
             |             
            
                20.00
             |           
            
                20.50
             |               
            
                19.90
             |                           
            
                20.40
             | 
            
                20.34
             |                     
            
                14.93
             |                                 
            
                37,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2021
             | 
            
                -0.20 / -1.00%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                19.70
             |                           
            
                19.80
             | 
            
                19.85
             |                     
            
                14.49
             |                                 
            
                51,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2021
             | 
            
                +0.40 / +2.04%
             |             
            
                20.00
             |           
            
                20.10
             |               
            
                19.60
             |                           
            
                20.00
             | 
            
                19.94
             |                     
            
                14.64
             |                                 
            
                47,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |