| 
                 
                    Closing price on 10/19/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    50.70 | 
                 
                
                    | High | 
                    50.80 | 
                 
                
                    | Low | 
                    50.00 | 
                     
                
                    | Volume | 
                    82,490 | 
                                 
                
                    | Split-adjusted Price | 
                    45.01 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2020
             | 
            
                -0.20 / -0.40%
             |             
            
                50.50
             |           
            
                50.50
             |               
            
                49.70
             |                           
            
                50.30
             | 
            
                50.05
             |                     
            
                45.28
             |                                 
            
                77,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2020
             | 
            
                -0.40 / -0.79%
             |             
            
                50.60
             |           
            
                50.90
             |               
            
                50.20
             |                           
            
                50.50
             | 
            
                50.62
             |                     
            
                45.46
             |                                 
            
                58,480
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2020
             | 
            
                0.00 / 0.00%
             |             
            
                51.50
             |           
            
                51.50
             |               
            
                50.90
             |                           
            
                50.90
             | 
            
                51.04
             |                     
            
                45.82
             |                                 
            
                86,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2020
             | 
            
                +0.70 / +1.39%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                50.30
             |                           
            
                50.90
             | 
            
                50.57
             |                     
            
                45.82
             |                                 
            
                59,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2020
             | 
            
                -0.70 / -1.38%
             |             
            
                51.20
             |           
            
                51.20
             |               
            
                48.00
             |                           
            
                50.20
             | 
            
                50.28
             |                     
            
                45.19
             |                                 
            
                106,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2020
             | 
            
                +0.30 / +0.59%
             |             
            
                50.70
             |           
            
                51.50
             |               
            
                50.70
             |                           
            
                50.90
             | 
            
                51.08
             |                     
            
                45.82
             |                                 
            
                113,440
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2020
             | 
            
                0.00 / 0.00%
             |             
            
                50.60
             |           
            
                50.80
             |               
            
                50.20
             |                           
            
                50.60
             | 
            
                50.36
             |                     
            
                45.55
             |                                 
            
                66,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2020
             | 
            
                -0.80 / -1.56%
             |             
            
                51.40
             |           
            
                51.50
             |               
            
                50.60
             |                           
            
                50.60
             | 
            
                51.07
             |                     
            
                45.55
             |                                 
            
                127,440
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2020
             | 
            
                -0.10 / -0.19%
             |             
            
                51.50
             |           
            
                51.90
             |               
            
                51.10
             |                           
            
                51.40
             | 
            
                51.48
             |                     
            
                46.27
             |                                 
            
                87,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2020
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.10
             |                           
            
                51.50
             | 
            
                51.59
             |                     
            
                46.36
             |                                 
            
                137,420
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2020
             | 
            
                -1.40 / -2.65%
             |             
            
                52.70
             |           
            
                53.10
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                52.37
             |                     
            
                46.36
             |                                 
            
                200,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2020
             | 
            
                +0.20 / +0.38%
             |             
            
                52.70
             |           
            
                53.20
             |               
            
                52.70
             |                           
            
                52.90
             | 
            
                52.85
             |                     
            
                47.62
             |                                 
            
                108,620
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2020
             | 
            
                +0.70 / +1.35%
             |             
            
                52.00
             |           
            
                53.00
             |               
            
                51.50
             |                           
            
                52.70
             | 
            
                52.44
             |                     
            
                47.44
             |                                 
            
                172,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2020
             | 
            
                +1.10 / +2.16%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                52.00
             | 
            
                51.86
             |                     
            
                46.81
             |                                 
            
                185,380
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2020
             | 
            
                -0.30 / -0.59%
             |             
            
                51.00
             |           
            
                51.20
             |               
            
                50.70
             |                           
            
                50.90
             | 
            
                50.93
             |                     
            
                45.82
             |                                 
            
                51,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2020
             | 
            
                -0.10 / -0.19%
             |             
            
                51.30
             |           
            
                51.70
             |               
            
                50.30
             |                           
            
                51.20
             | 
            
                50.94
             |                     
            
                46.09
             |                                 
            
                178,790
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2020
             | 
            
                +2.10 / +4.27%
             |             
            
                49.30
             |           
            
                51.30
             |               
            
                49.30
             |                           
            
                51.30
             | 
            
                50.77
             |                     
            
                46.18
             |                                 
            
                255,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2020
             | 
            
                -0.30 / -0.61%
             |             
            
                49.50
             |           
            
                49.50
             |               
            
                49.05
             |                           
            
                49.20
             | 
            
                49.18
             |                     
            
                44.29
             |                                 
            
                111,630
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2020
             | 
            
                +1.20 / +2.48%
             |             
            
                48.80
             |           
            
                49.90
             |               
            
                48.70
             |                           
            
                49.50
             | 
            
                49.44
             |                     
            
                44.56
             |                                 
            
                115,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2020
             | 
            
                -0.50 / -1.02%
             |             
            
                48.80
             |           
            
                48.80
             |               
            
                48.20
             |                           
            
                48.30
             | 
            
                48.51
             |                     
            
                43.48
             |                                 
            
                60,750
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2020
             | 
            
                -0.20 / -0.41%
             |             
            
                49.50
             |           
            
                49.50
             |               
            
                48.10
             |                           
            
                48.80
             | 
            
                48.41
             |                     
            
                43.93
             |                                 
            
                209,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2020
             | 
            
                0.00 / 0.00%
             |             
            
                47.80
             |           
            
                49.10
             |               
            
                47.80
             |                           
            
                49.00
             | 
            
                48.54
             |                     
            
                44.11
             |                                 
            
                52,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2020
             | 
            
                -0.10 / -0.20%
             |             
            
                49.10
             |           
            
                49.10
             |               
            
                48.20
             |                           
            
                49.00
             | 
            
                48.55
             |                     
            
                44.11
             |                                 
            
                171,510
             |  
            
                 
             |                                                              
             
    
         
    
    
 |