| 
                 
                    Closing price on 6/10/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.34 | 
                 
                
                    | High | 
                    1.39 | 
                 
                
                    | Low | 
                    1.34 | 
                     
                
                    | Volume | 
                    1,660 | 
                                 
                
                    | Split-adjusted Price | 
                    1.39 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PXT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/10/2019
             | 
            
                +0.09 / +6.92%
             |             
            
                1.34
             |           
            
                1.39
             |               
            
                1.34
             |                           
            
                1.39
             | 
            
                1.37
             |                     
            
                1.39
             |                                 
            
                1,660
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2019
             | 
            
                -0.05 / -3.70%
             |             
            
                1.35
             |           
            
                1.35
             |               
            
                1.30
             |                           
            
                1.30
             | 
            
                1.33
             |                     
            
                1.30
             |                                 
            
                4,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2019
             | 
            
                -0.05 / -3.57%
             |             
            
                1.40
             |           
            
                1.45
             |               
            
                1.35
             |                           
            
                1.35
             | 
            
                1.38
             |                     
            
                1.35
             |                                 
            
                5,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2019
             | 
            
                -0.04 / -2.78%
             |             
            
                1.37
             |           
            
                1.44
             |               
            
                1.35
             |                           
            
                1.40
             | 
            
                1.39
             |                     
            
                1.40
             |                                 
            
                840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2019
             | 
            
                +0.04 / +2.86%
             |             
            
                1.40
             |           
            
                1.45
             |               
            
                1.40
             |                           
            
                1.44
             | 
            
                1.42
             |                     
            
                1.44
             |                                 
            
                3,050
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.34
             |           
            
                1.40
             |               
            
                1.34
             |                           
            
                1.40
             | 
            
                1.37
             |                     
            
                1.40
             |                                 
            
                11,650
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.34
             |           
            
                1.40
             |               
            
                1.34
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                40
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2019
             | 
            
                -0.02 / -1.41%
             |             
            
                1.42
             |           
            
                1.42
             |               
            
                1.37
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2019
             | 
            
                -0.01 / -0.70%
             |             
            
                1.43
             |           
            
                1.43
             |               
            
                1.37
             |                           
            
                1.42
             | 
            
                1.42
             |                     
            
                1.42
             |                                 
            
                12,710
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2019
             | 
            
                -0.01 / -0.69%
             |             
            
                1.42
             |           
            
                1.43
             |               
            
                1.35
             |                           
            
                1.43
             | 
            
                1.39
             |                     
            
                1.43
             |                                 
            
                10,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2019
             | 
            
                +0.01 / +0.70%
             |             
            
                1.44
             |           
            
                1.44
             |               
            
                1.44
             |                           
            
                1.44
             | 
            
                1.44
             |                     
            
                1.44
             |                                 
            
                970
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2019
             | 
            
                -0.02 / -1.38%
             |             
            
                1.35
             |           
            
                1.43
             |               
            
                1.35
             |                           
            
                1.43
             | 
            
                1.35
             |                     
            
                1.43
             |                                 
            
                15,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2019
             | 
            
                +0.07 / +5.07%
             |             
            
                1.45
             |           
            
                1.45
             |               
            
                1.45
             |                           
            
                1.45
             | 
            
                1.45
             |                     
            
                1.45
             |                                 
            
                80
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2019
             | 
            
                +0.01 / +0.73%
             |             
            
                1.37
             |           
            
                1.38
             |               
            
                1.37
             |                           
            
                1.38
             | 
            
                1.38
             |                     
            
                1.38
             |                                 
            
                33,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.37
             |                           
            
                1.37
             | 
            
                1.37
             |                     
            
                1.37
             |                                 
            
                330
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.45
             |           
            
                1.45
             |               
            
                1.37
             |                           
            
                1.37
             | 
            
                1.37
             |                     
            
                1.37
             |                                 
            
                33,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2019
             | 
            
                -0.08 / -5.52%
             |             
            
                1.45
             |           
            
                1.45
             |               
            
                1.36
             |                           
            
                1.37
             | 
            
                1.42
             |                     
            
                1.37
             |                                 
            
                6,360
             |            
            
                 
             |                                       
         
    
        
            | 
                5/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.45
             |           
            
                1.45
             |               
            
                1.40
             |                           
            
                1.45
             | 
            
                1.44
             |                     
            
                1.45
             |                                 
            
                1,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2019
             | 
            
                +0.05 / +3.57%
             |             
            
                1.45
             |           
            
                1.45
             |               
            
                1.41
             |                           
            
                1.45
             | 
            
                1.42
             |                     
            
                1.45
             |                                 
            
                16,870
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.36
             |                           
            
                1.40
             | 
            
                1.39
             |                     
            
                1.40
             |                                 
            
                1,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2019
             | 
            
                +0.09 / +6.87%
             |             
            
                1.33
             |           
            
                1.40
             |               
            
                1.25
             |                           
            
                1.40
             | 
            
                1.35
             |                     
            
                1.40
             |                                 
            
                570
             |            
            
                 
             |                                       
         
    
        
            | 
                5/10/2019
             | 
            
                -0.09 / -6.43%
             |             
            
                1.40
             |           
            
                1.41
             |               
            
                1.31
             |                           
            
                1.31
             | 
            
                1.34
             |                     
            
                1.31
             |                                 
            
                33,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/9/2019
             | 
            
                -0.01 / -0.71%
             |             
            
                1.40
             |           
            
                1.40
             |               
            
                1.40
             |                           
            
                1.40
             | 
            
                1.40
             |                     
            
                1.40
             |                                 
            
                10,160
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2019
             | 
            
                +0.01 / +0.71%
             |             
            
                1.37
             |           
            
                1.41
             |               
            
                1.37
             |                           
            
                1.41
             | 
            
                1.41
             |                     
            
                1.41
             |                                 
            
                330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2019
             | 
            
                -0.04 / -2.78%
             |             
            
                1.43
             |           
            
                1.43
             |               
            
                1.34
             |                           
            
                1.40
             | 
            
                1.42
             |                     
            
                1.40
             |                                 
            
                15,540
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2019
             | 
            
                -0.01 / -0.69%
             |             
            
                1.38
             |           
            
                1.44
             |               
            
                1.38
             |                           
            
                1.44
             | 
            
                1.39
             |                     
            
                1.44
             |                                 
            
                36,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2019
             | 
            
                +0.06 / +4.32%
             |             
            
                1.39
             |           
            
                1.45
             |               
            
                1.39
             |                           
            
                1.45
             | 
            
                1.42
             |                     
            
                1.45
             |                                 
            
                4,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/2/2019
             | 
            
                -0.05 / -3.47%
             |             
            
                1.44
             |           
            
                1.44
             |               
            
                1.39
             |                           
            
                1.39
             | 
            
                1.39
             |                     
            
                1.39
             |                                 
            
                20,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2019
             | 
            
                +0.01 / +0.70%
             |             
            
                1.44
             |           
            
                1.44
             |               
            
                1.44
             |                           
            
                1.44
             | 
            
                1.44
             |                     
            
                1.44
             |                                 
            
                70
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2019
             | 
            
                +0.02 / +1.42%
             |             
            
                1.41
             |           
            
                1.43
             |               
            
                1.35
             |                           
            
                1.43
             | 
            
                1.41
             |                     
            
                1.43
             |                                 
            
                4,890
             |  
            
                 
             |                                                              
             
    
         
    
    
 |