| 
                 
                    Closing price on 7/27/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    43.40 | 
                 
                
                    | High | 
                    43.50 | 
                 
                
                    | Low | 
                    43.25 | 
                     
                
                    | Volume | 
                    241,860 | 
                                 
                
                    | Split-adjusted Price | 
                    38.03 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/27/2020
             | 
            
                -3.25 / -6.99%
             |             
            
                43.40
             |           
            
                43.50
             |               
            
                43.25
             |                           
            
                43.25
             | 
            
                43.27
             |                     
            
                38.03
             |                                 
            
                241,860
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2020
             | 
            
                -3.30 / -6.63%
             |             
            
                49.80
             |           
            
                49.80
             |               
            
                46.35
             |                           
            
                46.50
             | 
            
                47.61
             |                     
            
                40.89
             |                                 
            
                97,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2020
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.00
             |               
            
                49.00
             |                           
            
                49.80
             | 
            
                49.54
             |                     
            
                43.79
             |                                 
            
                45,880
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2020
             | 
            
                -0.70 / -1.39%
             |             
            
                50.20
             |           
            
                50.40
             |               
            
                49.80
             |                           
            
                49.80
             | 
            
                50.05
             |                     
            
                43.79
             |                                 
            
                44,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                50.50
             |           
            
                50.70
             |               
            
                50.40
             |                           
            
                50.50
             | 
            
                50.49
             |                     
            
                44.41
             |                                 
            
                27,590
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2020
             | 
            
                -0.20 / -0.39%
             |             
            
                50.70
             |           
            
                50.80
             |               
            
                50.60
             |                           
            
                50.60
             | 
            
                50.65
             |                     
            
                44.49
             |                                 
            
                24,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                51.10
             |           
            
                51.10
             |               
            
                50.60
             |                           
            
                50.80
             | 
            
                50.76
             |                     
            
                44.67
             |                                 
            
                55,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                51.10
             |           
            
                51.10
             |               
            
                50.80
             |                           
            
                50.90
             | 
            
                51.00
             |                     
            
                44.76
             |                                 
            
                33,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2020
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                51.10
             |               
            
                50.50
             |                           
            
                51.00
             | 
            
                50.74
             |                     
            
                44.85
             |                                 
            
                75,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2020
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                50.50
             |                           
            
                51.00
             | 
            
                50.78
             |                     
            
                44.85
             |                                 
            
                68,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                50.90
             |           
            
                51.20
             |               
            
                50.70
             |                           
            
                51.00
             | 
            
                50.89
             |                     
            
                44.85
             |                                 
            
                24,680
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                50.80
             |           
            
                51.10
             |               
            
                50.50
             |                           
            
                50.90
             | 
            
                50.79
             |                     
            
                44.76
             |                                 
            
                22,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2020
             | 
            
                +0.30 / +0.59%
             |             
            
                50.70
             |           
            
                51.30
             |               
            
                50.70
             |                           
            
                51.00
             | 
            
                50.93
             |                     
            
                44.85
             |                                 
            
                32,890
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2020
             | 
            
                -0.60 / -1.17%
             |             
            
                50.50
             |           
            
                51.70
             |               
            
                50.50
             |                           
            
                50.70
             | 
            
                51.03
             |                     
            
                44.58
             |                                 
            
                11,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2020
             | 
            
                -0.60 / -1.16%
             |             
            
                52.00
             |           
            
                52.80
             |               
            
                51.30
             |                           
            
                51.30
             | 
            
                51.54
             |                     
            
                45.11
             |                                 
            
                27,840
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2020
             | 
            
                +1.70 / +3.39%
             |             
            
                51.60
             |           
            
                51.90
             |               
            
                50.50
             |                           
            
                51.90
             | 
            
                51.28
             |                     
            
                45.64
             |                                 
            
                45,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2020
             | 
            
                +0.30 / +0.60%
             |             
            
                49.80
             |           
            
                52.00
             |               
            
                49.80
             |                           
            
                50.20
             | 
            
                50.40
             |                     
            
                44.14
             |                                 
            
                31,170
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                48.50
             |           
            
                50.30
             |               
            
                48.50
             |                           
            
                49.90
             | 
            
                49.02
             |                     
            
                43.88
             |                                 
            
                24,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2020
             | 
            
                +0.70 / +1.42%
             |             
            
                49.30
             |           
            
                50.10
             |               
            
                49.20
             |                           
            
                50.00
             | 
            
                49.73
             |                     
            
                43.97
             |                                 
            
                16,390
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2020
             | 
            
                -1.10 / -2.18%
             |             
            
                50.40
             |           
            
                50.80
             |               
            
                49.00
             |                           
            
                49.30
             | 
            
                49.81
             |                     
            
                43.35
             |                                 
            
                34,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2020
             | 
            
                -0.80 / -1.56%
             |             
            
                51.20
             |           
            
                51.20
             |               
            
                49.30
             |                           
            
                50.40
             | 
            
                49.98
             |                     
            
                44.32
             |                                 
            
                143,950
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                51.50
             |           
            
                52.00
             |               
            
                50.90
             |                           
            
                51.20
             | 
            
                51.15
             |                     
            
                45.02
             |                                 
            
                37,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2020
             | 
            
                -0.40 / -0.78%
             |             
            
                51.30
             |           
            
                51.40
             |               
            
                50.80
             |                           
            
                51.10
             | 
            
                51.01
             |                     
            
                44.93
             |                                 
            
                46,420
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2020
             | 
            
                -0.60 / -1.15%
             |             
            
                52.10
             |           
            
                52.90
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                52.18
             |                     
            
                45.29
             |                                 
            
                47,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/23/2020
             | 
            
                +0.30 / +0.58%
             |             
            
                51.80
             |           
            
                52.60
             |               
            
                51.80
             |                           
            
                52.10
             | 
            
                52.15
             |                     
            
                45.81
             |                                 
            
                37,390
             |            
            
                 
             |                                       
         
    
        
            | 
                6/22/2020
             | 
            
                -0.70 / -1.33%
             |             
            
                52.30
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                51.80
             | 
            
                51.79
             |                     
            
                45.55
             |                                 
            
                110,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2020
             | 
            
                +0.20 / +0.38%
             |             
            
                52.50
             |           
            
                53.00
             |               
            
                52.30
             |                           
            
                52.50
             | 
            
                52.61
             |                     
            
                46.17
             |                                 
            
                44,950
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.30
             |               
            
                51.30
             |                           
            
                52.30
             | 
            
                51.94
             |                     
            
                45.99
             |                                 
            
                58,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2020
             | 
            
                +0.30 / +0.58%
             |             
            
                52.00
             |           
            
                52.60
             |               
            
                51.80
             |                           
            
                52.30
             | 
            
                52.09
             |                     
            
                45.99
             |                                 
            
                36,440
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2020
             | 
            
                +0.90 / +1.76%
             |             
            
                51.50
             |           
            
                52.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                51.85
             |                     
            
                45.73
             |                                 
            
                75,930
             |  
            
                 
             |                                                              
             
    
         
    
    
 |