| 
                 
                    Closing price on 5/10/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.00 | 
                 
                
                    | High | 
                    3.10 | 
                 
                
                    | Low | 
                    2.92 | 
                     
                
                    | Volume | 
                    14,810 | 
                                 
                
                    | Split-adjusted Price | 
                    2.92 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PXT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/10/2018
             | 
            
                -0.01 / -0.34%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                2.92
             |                           
            
                2.92
             | 
            
                2.99
             |                     
            
                2.92
             |                                 
            
                14,810
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                2.93
             |                           
            
                2.93
             | 
            
                2.98
             |                     
            
                2.93
             |                                 
            
                6,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2018
             | 
            
                -0.12 / -3.93%
             |             
            
                2.93
             |           
            
                3.00
             |               
            
                2.93
             |                           
            
                2.93
             | 
            
                2.93
             |                     
            
                2.93
             |                                 
            
                33,430
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.00
             |           
            
                3.05
             |               
            
                2.97
             |                           
            
                3.05
             | 
            
                3.02
             |                     
            
                3.05
             |                                 
            
                4,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2018
             | 
            
                +0.03 / +0.99%
             |             
            
                3.08
             |           
            
                3.08
             |               
            
                3.05
             |                           
            
                3.05
             | 
            
                3.07
             |                     
            
                3.05
             |                                 
            
                220
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2018
             | 
            
                -0.03 / -0.98%
             |             
            
                2.92
             |           
            
                3.03
             |               
            
                2.91
             |                           
            
                3.02
             | 
            
                2.93
             |                     
            
                3.02
             |                                 
            
                2,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2018
             | 
            
                -0.05 / -1.61%
             |             
            
                3.09
             |           
            
                3.09
             |               
            
                2.89
             |                           
            
                3.05
             | 
            
                3.07
             |                     
            
                3.05
             |                                 
            
                6,190
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2018
             | 
            
                +0.10 / +3.33%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.06
             |                     
            
                3.10
             |                                 
            
                6,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.95
             |           
            
                3.00
             |               
            
                2.95
             |                           
            
                3.00
             | 
            
                2.98
             |                     
            
                3.00
             |                                 
            
                220
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2018
             | 
            
                -0.08 / -2.60%
             |             
            
                3.00
             |           
            
                3.00
             |               
            
                3.00
             |                           
            
                3.00
             | 
            
                3.00
             |                     
            
                3.00
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2018
             | 
            
                +0.08 / +2.67%
             |             
            
                2.81
             |           
            
                3.09
             |               
            
                2.81
             |                           
            
                3.08
             | 
            
                3.08
             |                     
            
                3.08
             |                                 
            
                70
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2018
             | 
            
                -0.02 / -0.66%
             |             
            
                3.00
             |           
            
                3.06
             |               
            
                2.92
             |                           
            
                3.00
             | 
            
                3.00
             |                     
            
                3.00
             |                                 
            
                4,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2018
             | 
            
                -0.04 / -1.31%
             |             
            
                3.02
             |           
            
                3.03
             |               
            
                2.95
             |                           
            
                3.02
             | 
            
                3.00
             |                     
            
                3.02
             |                                 
            
                28,340
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.06
             |           
            
                3.06
             |               
            
                3.00
             |                           
            
                3.06
             | 
            
                3.02
             |                     
            
                3.06
             |                                 
            
                30,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2018
             | 
            
                -0.02 / -0.65%
             |             
            
                3.02
             |           
            
                3.06
             |               
            
                3.02
             |                           
            
                3.06
             | 
            
                3.04
             |                     
            
                3.06
             |                                 
            
                10,320
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                3.04
             |                           
            
                3.08
             | 
            
                3.09
             |                     
            
                3.08
             |                                 
            
                15,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2018
             | 
            
                -0.02 / -0.65%
             |             
            
                3.10
             |           
            
                3.14
             |               
            
                3.01
             |                           
            
                3.08
             | 
            
                3.09
             |                     
            
                3.08
             |                                 
            
                26,550
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.24
             |           
            
                3.24
             |               
            
                3.03
             |                           
            
                3.10
             | 
            
                3.19
             |                     
            
                3.10
             |                                 
            
                7,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2018
             | 
            
                +0.04 / +1.31%
             |             
            
                3.00
             |           
            
                3.10
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.03
             |                     
            
                3.10
             |                                 
            
                44,230
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2018
             | 
            
                -0.14 / -4.38%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.05
             |                           
            
                3.06
             | 
            
                3.12
             |                     
            
                3.06
             |                                 
            
                21,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2018
             | 
            
                -0.12 / -3.61%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                3.09
             |                           
            
                3.20
             | 
            
                3.21
             |                     
            
                3.20
             |                                 
            
                42,390
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2018
             | 
            
                -0.01 / -0.30%
             |             
            
                3.43
             |           
            
                3.43
             |               
            
                3.25
             |                           
            
                3.32
             | 
            
                3.29
             |                     
            
                3.32
             |                                 
            
                31,960
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2018
             | 
            
                -0.02 / -0.60%
             |             
            
                3.44
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.33
             | 
            
                3.33
             |                     
            
                3.33
             |                                 
            
                34,540
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.56
             |           
            
                3.57
             |               
            
                3.30
             |                           
            
                3.35
             | 
            
                3.31
             |                     
            
                3.35
             |                                 
            
                98,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2018
             | 
            
                -0.09 / -2.62%
             |             
            
                3.44
             |           
            
                3.44
             |               
            
                3.30
             |                           
            
                3.35
             | 
            
                3.39
             |                     
            
                3.35
             |                                 
            
                23,860
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2018
             | 
            
                -0.04 / -1.15%
             |             
            
                3.48
             |           
            
                3.70
             |               
            
                3.43
             |                           
            
                3.44
             | 
            
                3.47
             |                     
            
                3.44
             |                                 
            
                40,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2018
             | 
            
                -0.12 / -3.33%
             |             
            
                3.60
             |           
            
                3.69
             |               
            
                3.48
             |                           
            
                3.48
             | 
            
                3.57
             |                     
            
                3.48
             |                                 
            
                26,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2018
             | 
            
                -0.19 / -5.01%
             |             
            
                3.70
             |           
            
                3.79
             |               
            
                3.54
             |                           
            
                3.60
             | 
            
                3.58
             |                     
            
                3.60
             |                                 
            
                62,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2018
             | 
            
                0.00 / 0.00%
             |             
            
                3.79
             |           
            
                3.79
             |               
            
                3.79
             |                           
            
                3.79
             | 
            
                3.79
             |                     
            
                3.79
             |                                 
            
                3,890
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2018
             | 
            
                +0.23 / +6.46%
             |             
            
                3.52
             |           
            
                3.80
             |               
            
                3.52
             |                           
            
                3.79
             | 
            
                3.58
             |                     
            
                3.79
             |                                 
            
                42,440
             |  
            
                 
             |                                                              
             
    
         
    
    
 |