| 
                 
                    Closing price on 2/23/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.30 | 
                 
                
                    | High | 
                    7.30 | 
                 
                
                    | Low | 
                    7.00 | 
                     
                
                    | Volume | 
                    20,100 | 
                                 
                
                    | Split-adjusted Price | 
                    7.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PSI Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/23/2021
             | 
            
                +0.20 / +2.86%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.21
             |                     
            
                7.20
             |                                 
            
                20,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2021
             | 
            
                +0.60 / +9.38%
             |             
            
                6.40
             |           
            
                7.00
             |               
            
                6.30
             |                           
            
                7.00
             | 
            
                6.88
             |                     
            
                7.00
             |                                 
            
                47,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2021
             | 
            
                -0.70 / -9.86%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.66
             |                     
            
                6.40
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2021
             | 
            
                +0.10 / +1.43%
             |             
            
                7.00
             |           
            
                7.20
             |               
            
                6.80
             |                           
            
                7.10
             | 
            
                7.11
             |                     
            
                7.10
             |                                 
            
                58,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2021
             | 
            
                +0.40 / +6.06%
             |             
            
                6.50
             |           
            
                7.00
             |               
            
                6.10
             |                           
            
                7.00
             | 
            
                6.26
             |                     
            
                7.00
             |                                 
            
                7,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2021
             | 
            
                +0.30 / +4.76%
             |             
            
                6.50
             |           
            
                6.60
             |               
            
                6.50
             |                           
            
                6.60
             | 
            
                6.51
             |                     
            
                6.60
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2021
             | 
            
                -0.60 / -8.70%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.30
             |                           
            
                6.30
             | 
            
                6.39
             |                     
            
                6.30
             |                                 
            
                47,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2021
             | 
            
                +0.20 / +2.99%
             |             
            
                6.50
             |           
            
                6.90
             |               
            
                6.50
             |                           
            
                6.90
             | 
            
                6.50
             |                     
            
                6.90
             |                                 
            
                28,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/4/2021
             | 
            
                +0.30 / +4.69%
             |             
            
                6.40
             |           
            
                6.70
             |               
            
                6.00
             |                           
            
                6.70
             | 
            
                6.32
             |                     
            
                6.70
             |                                 
            
                11,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2021
             | 
            
                +0.40 / +6.67%
             |             
            
                5.40
             |           
            
                6.50
             |               
            
                5.40
             |                           
            
                6.40
             | 
            
                6.14
             |                     
            
                6.40
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2021
             | 
            
                +0.40 / +7.14%
             |             
            
                5.10
             |           
            
                6.00
             |               
            
                5.10
             |                           
            
                6.00
             | 
            
                5.26
             |                     
            
                6.00
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2021
             | 
            
                -0.50 / -8.20%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.60
             |                           
            
                5.60
             | 
            
                5.60
             |                     
            
                5.60
             |                                 
            
                4,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2021
             | 
            
                +0.10 / +1.67%
             |             
            
                5.40
             |           
            
                6.60
             |               
            
                5.40
             |                           
            
                6.10
             | 
            
                5.54
             |                     
            
                6.10
             |                                 
            
                44,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2021
             | 
            
                -0.60 / -9.09%
             |             
            
                6.00
             |           
            
                6.00
             |               
            
                6.00
             |                           
            
                6.00
             | 
            
                6.00
             |                     
            
                6.00
             |                                 
            
                25,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/27/2021
             | 
            
                -0.70 / -9.59%
             |             
            
                6.60
             |           
            
                6.90
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.60
             |                     
            
                6.60
             |                                 
            
                50,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/26/2021
             | 
            
                -0.80 / -9.88%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                7.30
             |                                 
            
                32,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2021
             | 
            
                -0.70 / -7.95%
             |             
            
                8.50
             |           
            
                8.50
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.26
             |                     
            
                8.10
             |                                 
            
                16,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2021
             | 
            
                +0.30 / +3.53%
             |             
            
                8.70
             |           
            
                9.20
             |               
            
                8.70
             |                           
            
                8.80
             | 
            
                8.85
             |                     
            
                8.80
             |                                 
            
                74,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2021
             | 
            
                +0.20 / +2.41%
             |             
            
                8.30
             |           
            
                8.50
             |               
            
                8.10
             |                           
            
                8.50
             | 
            
                8.30
             |                     
            
                8.50
             |                                 
            
                72,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.30
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.30
             |                     
            
                8.30
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2021
             | 
            
                -0.50 / -5.68%
             |             
            
                9.40
             |           
            
                9.40
             |               
            
                8.00
             |                           
            
                8.30
             | 
            
                8.83
             |                     
            
                8.30
             |                                 
            
                87,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2021
             | 
            
                +0.80 / +10.00%
             |             
            
                8.80
             |           
            
                8.80
             |               
            
                8.60
             |                           
            
                8.80
             | 
            
                8.77
             |                     
            
                8.80
             |                                 
            
                162,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2021
             | 
            
                +0.70 / +9.59%
             |             
            
                7.50
             |           
            
                8.00
             |               
            
                7.50
             |                           
            
                8.00
             | 
            
                7.95
             |                     
            
                8.00
             |                                 
            
                125,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                6.70
             |                           
            
                7.30
             | 
            
                7.02
             |                     
            
                7.30
             |                                 
            
                17,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2021
             | 
            
                -0.10 / -1.35%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                6.80
             |                           
            
                7.30
             | 
            
                7.26
             |                     
            
                7.30
             |                                 
            
                28,558
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2021
             | 
            
                +0.10 / +1.37%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.30
             |                           
            
                7.40
             | 
            
                7.48
             |                     
            
                7.40
             |                                 
            
                24,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2021
             | 
            
                +0.60 / +8.96%
             |             
            
                7.20
             |           
            
                7.30
             |               
            
                7.20
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                7.30
             |                                 
            
                80,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2021
             | 
            
                +0.60 / +9.84%
             |             
            
                6.20
             |           
            
                6.70
             |               
            
                6.00
             |                           
            
                6.70
             | 
            
                6.65
             |                     
            
                6.70
             |                                 
            
                40,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2021
             | 
            
                +0.20 / +3.39%
             |             
            
                5.90
             |           
            
                6.10
             |               
            
                5.90
             |                           
            
                6.10
             | 
            
                6.00
             |                     
            
                6.10
             |                                 
            
                61,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2021
             | 
            
                0.00 / 0.00%
             |             
            
                5.60
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.90
             | 
            
                5.62
             |                     
            
                5.90
             |                                 
            
                9,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |