| 
                 
                    Closing price on 11/19/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    50.90 | 
                 
                
                    | High | 
                    52.10 | 
                 
                
                    | Low | 
                    50.80 | 
                     
                
                    | Volume | 
                    120,590 | 
                                 
                
                    | Split-adjusted Price | 
                    46.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/19/2020
             | 
            
                +1.10 / +2.17%
             |             
            
                50.90
             |           
            
                52.10
             |               
            
                50.80
             |                           
            
                51.90
             | 
            
                51.16
             |                     
            
                46.72
             |                                 
            
                120,590
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2020
             | 
            
                -0.40 / -0.78%
             |             
            
                51.20
             |           
            
                51.20
             |               
            
                50.70
             |                           
            
                50.80
             | 
            
                50.94
             |                     
            
                45.73
             |                                 
            
                103,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2020
             | 
            
                +0.50 / +0.99%
             |             
            
                51.00
             |           
            
                51.30
             |               
            
                50.50
             |                           
            
                51.20
             | 
            
                50.95
             |                     
            
                46.09
             |                                 
            
                83,650
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2020
             | 
            
                -0.60 / -1.17%
             |             
            
                51.30
             |           
            
                51.30
             |               
            
                50.50
             |                           
            
                50.70
             | 
            
                50.70
             |                     
            
                45.64
             |                                 
            
                175,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                50.30
             |           
            
                51.30
             |               
            
                50.30
             |                           
            
                51.30
             | 
            
                50.84
             |                     
            
                46.18
             |                                 
            
                119,470
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2020
             | 
            
                -0.50 / -0.97%
             |             
            
                51.70
             |           
            
                51.70
             |               
            
                50.50
             |                           
            
                51.20
             | 
            
                51.01
             |                     
            
                46.09
             |                                 
            
                53,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2020
             | 
            
                +0.40 / +0.78%
             |             
            
                53.50
             |           
            
                53.50
             |               
            
                51.40
             |                           
            
                51.70
             | 
            
                52.50
             |                     
            
                46.54
             |                                 
            
                138,810
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2020
             | 
            
                +3.30 / +6.88%
             |             
            
                49.45
             |           
            
                51.30
             |               
            
                49.45
             |                           
            
                51.30
             | 
            
                50.84
             |                     
            
                46.18
             |                                 
            
                464,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2020
             | 
            
                +0.50 / +1.05%
             |             
            
                47.95
             |           
            
                48.15
             |               
            
                47.55
             |                           
            
                48.00
             | 
            
                47.97
             |                     
            
                43.21
             |                                 
            
                31,160
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2020
             | 
            
                0.00 / 0.00%
             |             
            
                47.50
             |           
            
                47.70
             |               
            
                47.50
             |                           
            
                47.50
             | 
            
                47.59
             |                     
            
                42.76
             |                                 
            
                19,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2020
             | 
            
                +0.05 / +0.11%
             |             
            
                47.65
             |           
            
                47.65
             |               
            
                47.40
             |                           
            
                47.50
             | 
            
                47.49
             |                     
            
                42.76
             |                                 
            
                48,130
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2020
             | 
            
                +0.25 / +0.53%
             |             
            
                47.20
             |           
            
                48.00
             |               
            
                47.20
             |                           
            
                47.45
             | 
            
                47.48
             |                     
            
                42.72
             |                                 
            
                38,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2020
             | 
            
                +0.30 / +0.64%
             |             
            
                46.90
             |           
            
                47.40
             |               
            
                46.90
             |                           
            
                47.20
             | 
            
                47.14
             |                     
            
                42.49
             |                                 
            
                53,610
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2020
             | 
            
                +0.30 / +0.64%
             |             
            
                46.10
             |           
            
                47.00
             |               
            
                46.10
             |                           
            
                46.90
             | 
            
                46.41
             |                     
            
                42.22
             |                                 
            
                21,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2020
             | 
            
                -0.20 / -0.43%
             |             
            
                47.60
             |           
            
                47.60
             |               
            
                46.50
             |                           
            
                46.60
             | 
            
                47.06
             |                     
            
                41.95
             |                                 
            
                17,180
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2020
             | 
            
                +1.60 / +3.54%
             |             
            
                45.20
             |           
            
                47.00
             |               
            
                45.15
             |                           
            
                46.80
             | 
            
                46.14
             |                     
            
                42.13
             |                                 
            
                63,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2020
             | 
            
                -3.00 / -6.22%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                45.00
             |                           
            
                45.20
             | 
            
                46.11
             |                     
            
                40.69
             |                                 
            
                217,940
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2020
             | 
            
                -1.35 / -2.72%
             |             
            
                49.55
             |           
            
                49.55
             |               
            
                48.20
             |                           
            
                48.20
             | 
            
                48.78
             |                     
            
                43.39
             |                                 
            
                103,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2020
             | 
            
                -0.15 / -0.30%
             |             
            
                49.70
             |           
            
                49.85
             |               
            
                49.45
             |                           
            
                49.55
             | 
            
                49.66
             |                     
            
                44.61
             |                                 
            
                155,140
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                50.20
             |           
            
                50.20
             |               
            
                49.55
             |                           
            
                49.70
             | 
            
                49.68
             |                     
            
                44.74
             |                                 
            
                78,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                49.30
             |           
            
                49.75
             |               
            
                49.30
             |                           
            
                49.60
             | 
            
                49.49
             |                     
            
                44.65
             |                                 
            
                67,020
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                49.40
             |           
            
                49.90
             |               
            
                49.40
             |                           
            
                49.50
             | 
            
                49.60
             |                     
            
                44.56
             |                                 
            
                81,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2020
             | 
            
                -0.40 / -0.80%
             |             
            
                50.40
             |           
            
                50.40
             |               
            
                49.40
             |                           
            
                49.60
             | 
            
                49.57
             |                     
            
                44.65
             |                                 
            
                69,960
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2020
             | 
            
                -0.70 / -1.38%
             |             
            
                50.70
             |           
            
                50.80
             |               
            
                50.00
             |                           
            
                50.00
             | 
            
                50.47
             |                     
            
                45.01
             |                                 
            
                82,490
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2020
             | 
            
                +0.20 / +0.40%
             |             
            
                50.50
             |           
            
                50.70
             |               
            
                50.10
             |                           
            
                50.70
             | 
            
                50.46
             |                     
            
                45.64
             |                                 
            
                99,640
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2020
             | 
            
                +0.80 / +1.61%
             |             
            
                49.70
             |           
            
                50.50
             |               
            
                49.70
             |                           
            
                50.50
             | 
            
                50.21
             |                     
            
                45.46
             |                                 
            
                121,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2020
             | 
            
                +0.10 / +0.20%
             |             
            
                49.60
             |           
            
                50.30
             |               
            
                49.60
             |                           
            
                49.70
             | 
            
                49.79
             |                     
            
                44.74
             |                                 
            
                46,090
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                49.70
             |           
            
                50.00
             |               
            
                49.40
             |                           
            
                49.60
             | 
            
                49.65
             |                     
            
                44.65
             |                                 
            
                29,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2020
             | 
            
                0.00 / 0.00%
             |             
            
                49.50
             |           
            
                50.00
             |               
            
                49.50
             |                           
            
                49.70
             | 
            
                49.69
             |                     
            
                44.74
             |                                 
            
                103,590
             |            
            
                 
             |                                       
         
    
        
            | 
                10/9/2020
             | 
            
                -0.60 / -1.19%
             |             
            
                50.10
             |           
            
                50.10
             |               
            
                49.50
             |                           
            
                49.70
             | 
            
                49.81
             |                     
            
                44.74
             |                                 
            
                111,120
             |  
            
                 
             |                                                              
             
    
         
    
    
 |