| 
                 
                    Closing price on 10/9/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.42 | 
                 
                
                    | High | 
                    2.59 | 
                 
                
                    | Low | 
                    2.42 | 
                     
                
                    | Volume | 
                    12,170 | 
                                 
                
                    | Split-adjusted Price | 
                    2.58 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PXT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/9/2018
             | 
            
                -0.02 / -0.77%
             |             
            
                2.42
             |           
            
                2.59
             |               
            
                2.42
             |                           
            
                2.58
             | 
            
                2.47
             |                     
            
                2.58
             |                                 
            
                12,170
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2018
             | 
            
                +0.10 / +4.00%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.33
             |                           
            
                2.60
             | 
            
                2.40
             |                     
            
                2.60
             |                                 
            
                62,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.55
             |           
            
                2.55
             |               
            
                2.33
             |                           
            
                2.50
             | 
            
                2.38
             |                     
            
                2.50
             |                                 
            
                39,940
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2018
             | 
            
                -0.15 / -5.66%
             |             
            
                2.50
             |           
            
                2.64
             |               
            
                2.47
             |                           
            
                2.50
             | 
            
                2.48
             |                     
            
                2.50
             |                                 
            
                33,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2018
             | 
            
                +0.15 / +6.00%
             |             
            
                2.35
             |           
            
                2.67
             |               
            
                2.33
             |                           
            
                2.65
             | 
            
                2.40
             |                     
            
                2.65
             |                                 
            
                50,430
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2018
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.42
             |                           
            
                2.50
             | 
            
                2.55
             |                     
            
                2.50
             |                                 
            
                7,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.42
             |                           
            
                2.60
             | 
            
                2.45
             |                     
            
                2.60
             |                                 
            
                41,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2018
             | 
            
                +0.13 / +5.26%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.51
             |                     
            
                2.60
             |                                 
            
                44,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2018
             | 
            
                +0.16 / +6.93%
             |             
            
                2.40
             |           
            
                2.47
             |               
            
                2.30
             |                           
            
                2.47
             | 
            
                2.44
             |                     
            
                2.47
             |                                 
            
                85,340
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2018
             | 
            
                +0.15 / +6.94%
             |             
            
                2.16
             |           
            
                2.31
             |               
            
                2.01
             |                           
            
                2.31
             | 
            
                2.23
             |                     
            
                2.31
             |                                 
            
                81,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2018
             | 
            
                +0.06 / +2.86%
             |             
            
                2.16
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.16
             | 
            
                2.13
             |                     
            
                2.16
             |                                 
            
                37,030
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2018
             | 
            
                +0.08 / +3.96%
             |             
            
                2.02
             |           
            
                2.10
             |               
            
                1.98
             |                           
            
                2.10
             | 
            
                2.03
             |                     
            
                2.10
             |                                 
            
                47,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2018
             | 
            
                +0.12 / +6.32%
             |             
            
                1.95
             |           
            
                2.02
             |               
            
                1.93
             |                           
            
                2.02
             | 
            
                2.01
             |                     
            
                2.02
             |                                 
            
                32,360
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2018
             | 
            
                -0.03 / -1.55%
             |             
            
                1.95
             |           
            
                2.01
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.98
             |                     
            
                1.90
             |                                 
            
                36,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2018
             | 
            
                +0.03 / +1.58%
             |             
            
                1.90
             |           
            
                1.95
             |               
            
                1.82
             |                           
            
                1.93
             | 
            
                1.84
             |                     
            
                1.93
             |                                 
            
                8,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2018
             | 
            
                +0.03 / +1.60%
             |             
            
                1.85
             |           
            
                1.90
             |               
            
                1.81
             |                           
            
                1.90
             | 
            
                1.82
             |                     
            
                1.90
             |                                 
            
                10,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2018
             | 
            
                -0.05 / -2.60%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.87
             |                           
            
                1.87
             | 
            
                1.89
             |                     
            
                1.87
             |                                 
            
                19,910
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2018
             | 
            
                +0.02 / +1.05%
             |             
            
                1.81
             |           
            
                1.92
             |               
            
                1.81
             |                           
            
                1.92
             | 
            
                1.87
             |                     
            
                1.92
             |                                 
            
                3,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2018
             | 
            
                -0.07 / -3.55%
             |             
            
                1.85
             |           
            
                2.05
             |               
            
                1.85
             |                           
            
                1.90
             | 
            
                1.98
             |                     
            
                1.90
             |                                 
            
                42,430
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2018
             | 
            
                +0.07 / +3.68%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.97
             | 
            
                1.94
             |                     
            
                1.97
             |                                 
            
                31,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2018
             | 
            
                -0.01 / -0.52%
             |             
            
                2.04
             |           
            
                2.04
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.99
             |                     
            
                1.90
             |                                 
            
                22,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2018
             | 
            
                +0.11 / +6.11%
             |             
            
                1.80
             |           
            
                1.91
             |               
            
                1.80
             |                           
            
                1.91
             | 
            
                1.89
             |                     
            
                1.91
             |                                 
            
                46,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2018
             | 
            
                -0.07 / -3.74%
             |             
            
                1.79
             |           
            
                1.85
             |               
            
                1.79
             |                           
            
                1.80
             | 
            
                1.81
             |                     
            
                1.80
             |                                 
            
                1,230
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2018
             | 
            
                -0.01 / -0.53%
             |             
            
                1.88
             |           
            
                1.88
             |               
            
                1.80
             |                           
            
                1.87
             | 
            
                1.86
             |                     
            
                1.87
             |                                 
            
                6,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2018
             | 
            
                +0.08 / +4.44%
             |             
            
                1.79
             |           
            
                1.88
             |               
            
                1.79
             |                           
            
                1.88
             | 
            
                1.84
             |                     
            
                1.88
             |                                 
            
                440
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2018
             | 
            
                -0.10 / -5.26%
             |             
            
                1.80
             |           
            
                1.89
             |               
            
                1.80
             |                           
            
                1.80
             | 
            
                1.82
             |                     
            
                1.80
             |                                 
            
                1,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2018
             | 
            
                0.00 / 0.00%
             |             
            
                1.85
             |           
            
                1.90
             |               
            
                1.85
             |                           
            
                1.90
             | 
            
                1.88
             |                     
            
                1.90
             |                                 
            
                360
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2018
             | 
            
                +0.05 / +2.70%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                50
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2018
             | 
            
                +0.05 / +2.78%
             |             
            
                1.80
             |           
            
                1.85
             |               
            
                1.80
             |                           
            
                1.85
             | 
            
                1.82
             |                     
            
                1.85
             |                                 
            
                550
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2018
             | 
            
                -0.10 / -5.26%
             |             
            
                1.85
             |           
            
                1.85
             |               
            
                1.80
             |                           
            
                1.80
             | 
            
                1.83
             |                     
            
                1.80
             |                                 
            
                6,160
             |  
            
                 
             |                                                              
             
    
         
    
    
 |