| 
                 
                    Closing price on 5/23/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.70 | 
                 
                
                    | High | 
                    3.70 | 
                 
                
                    | Low | 
                    3.50 | 
                     
                
                    | Volume | 
                    1,000 | 
                                 
                
                    | Split-adjusted Price | 
                    3.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PSB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/23/2018
             | 
            
                -0.20 / -5.41%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.52
             |                     
            
                3.50
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2018
             | 
            
                -0.10 / -2.63%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2018
             | 
            
                +0.10 / +2.70%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.80
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2018
             | 
            
                +0.10 / +2.78%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.60
             | 
            
                3.55
             |                     
            
                3.60
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2018
             | 
            
                -0.20 / -5.26%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2018
             | 
            
                +0.30 / +8.57%
             |             
            
                3.60
             |           
            
                3.80
             |               
            
                3.50
             |                           
            
                3.80
             | 
            
                3.60
             |                     
            
                3.80
             |                                 
            
                4,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2018
             | 
            
                -0.30 / -7.89%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.54
             |                     
            
                3.50
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.80
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2018
             | 
            
                +0.30 / +8.57%
             |             
            
                3.80
             |           
            
                3.80
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.80
             |                     
            
                3.80
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2018
             | 
            
                -0.10 / -2.78%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.62
             |                     
            
                3.50
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2018
             | 
            
                -0.10 / -2.70%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                1,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2018
             | 
            
                +0.10 / +2.78%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.98
             |                     
            
                3.70
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2018
             | 
            
                -0.30 / -7.69%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2018
             | 
            
                +0.30 / +8.33%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.60
             |                     
            
                3.60
             |                                 
            
                900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |