| 
                 
                    Closing price on 5/25/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    15.10 | 
                 
                
                    | High | 
                    16.60 | 
                 
                
                    | Low | 
                    15.10 | 
                     
                
                    | Volume | 
                    10,900 | 
                                 
                
                    | Split-adjusted Price | 
                    11.03 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PGS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/25/2020
             | 
            
                +0.90 / +5.96%
             |             
            
                15.10
             |           
            
                16.60
             |               
            
                15.10
             |                           
            
                16.00
             | 
            
                15.76
             |                     
            
                11.03
             |                                 
            
                10,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2020
             | 
            
                +0.10 / +0.67%
             |             
            
                15.00
             |           
            
                15.20
             |               
            
                15.00
             |                           
            
                15.10
             | 
            
                15.10
             |                     
            
                10.41
             |                                 
            
                70,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2020
             | 
            
                -1.30 / -7.98%
             |             
            
                16.30
             |           
            
                16.30
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                16.12
             |                     
            
                10.34
             |                                 
            
                25,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2020
             | 
            
                -0.40 / -2.40%
             |             
            
                16.70
             |           
            
                16.80
             |               
            
                16.30
             |                           
            
                16.30
             | 
            
                16.61
             |                     
            
                11.24
             |                                 
            
                21,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2020
             | 
            
                -0.70 / -4.02%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.70
             |                           
            
                16.70
             | 
            
                16.93
             |                     
            
                11.51
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                12.00
             |                                 
            
                1,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2020
             | 
            
                0.00 / 0.00%
             |             
            
                17.40
             |           
            
                17.60
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.44
             |                     
            
                12.00
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2020
             | 
            
                +0.30 / +1.75%
             |             
            
                17.10
             |           
            
                17.50
             |               
            
                17.10
             |                           
            
                17.40
             | 
            
                17.42
             |                     
            
                12.00
             |                                 
            
                22,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2020
             | 
            
                -0.10 / -0.58%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                17.10
             |                           
            
                17.10
             | 
            
                17.19
             |                     
            
                11.79
             |                                 
            
                1,787,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2020
             | 
            
                -0.10 / -0.58%
             |             
            
                17.30
             |           
            
                17.30
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.27
             |                     
            
                11.86
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2020
             | 
            
                -0.10 / -0.57%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.20
             |                           
            
                17.30
             | 
            
                17.37
             |                     
            
                11.93
             |                                 
            
                116,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2020
             | 
            
                -0.10 / -0.57%
             |             
            
                17.50
             |           
            
                17.60
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.48
             |                     
            
                12.00
             |                                 
            
                3,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2020
             | 
            
                -0.30 / -1.69%
             |             
            
                17.50
             |           
            
                17.80
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.67
             |                     
            
                12.06
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2020
             | 
            
                +0.10 / +0.56%
             |             
            
                17.50
             |           
            
                17.80
             |               
            
                17.50
             |                           
            
                17.80
             | 
            
                17.51
             |                     
            
                12.27
             |                                 
            
                398,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2020
             | 
            
                -0.20 / -1.12%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                12.20
             |                                 
            
                2,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2020
             | 
            
                -0.60 / -3.24%
             |             
            
                17.90
             |           
            
                17.90
             |               
            
                17.90
             |                           
            
                17.90
             | 
            
                17.90
             |                     
            
                12.34
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2020
             | 
            
                0.00 / 0.00%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.60
             |                     
            
                12.75
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2020
             | 
            
                0.00 / 0.00%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                12.75
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2020
             | 
            
                -0.40 / -2.12%
             |             
            
                18.50
             |           
            
                18.50
             |               
            
                18.50
             |                           
            
                18.50
             | 
            
                18.50
             |                     
            
                12.75
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2020
             | 
            
                -0.10 / -0.53%
             |             
            
                18.90
             |           
            
                18.90
             |               
            
                18.90
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                13.03
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2020
             | 
            
                +0.40 / +2.15%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                19.00
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                13.10
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2020
             | 
            
                0.00 / 0.00%
             |             
            
                18.60
             |           
            
                18.60
             |               
            
                18.60
             |                           
            
                18.60
             | 
            
                18.60
             |                     
            
                12.82
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2020
             | 
            
                -1.80 / -8.82%
             |             
            
                18.90
             |           
            
                18.90
             |               
            
                18.60
             |                           
            
                18.60
             | 
            
                18.66
             |                     
            
                12.82
             |                                 
            
                2,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2020
             | 
            
                +1.80 / +9.68%
             |             
            
                20.00
             |           
            
                20.40
             |               
            
                20.00
             |                           
            
                20.40
             | 
            
                20.20
             |                     
            
                14.06
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2020
             | 
            
                +1.30 / +7.51%
             |             
            
                17.30
             |           
            
                19.00
             |               
            
                17.30
             |                           
            
                18.60
             | 
            
                18.25
             |                     
            
                12.82
             |                                 
            
                8,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2020
             | 
            
                +0.30 / +1.76%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.33
             |                     
            
                11.93
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2020
             | 
            
                0.00 / 0.00%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                11.72
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2020
             | 
            
                0.00 / 0.00%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                11.72
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2020
             | 
            
                -0.10 / -0.58%
             |             
            
                17.30
             |           
            
                18.80
             |               
            
                16.90
             |                           
            
                17.00
             | 
            
                17.34
             |                     
            
                11.72
             |                                 
            
                13,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2020
             | 
            
                +0.10 / +0.59%
             |             
            
                17.00
             |           
            
                17.10
             |               
            
                17.00
             |                           
            
                17.10
             | 
            
                17.09
             |                     
            
                11.79
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |