| 
                 
                    Closing price on 12/14/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    54.00 | 
                 
                
                    | High | 
                    54.10 | 
                 
                
                    | Low | 
                    53.00 | 
                     
                
                    | Volume | 
                    22,400 | 
                                 
                
                    | Split-adjusted Price | 
                    47.71 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/14/2021
             | 
            
                -0.80 / -1.49%
             |             
            
                54.00
             |           
            
                54.10
             |               
            
                53.00
             |                           
            
                53.00
             | 
            
                53.44
             |                     
            
                47.71
             |                                 
            
                22,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2021
             | 
            
                +0.30 / +0.56%
             |             
            
                53.70
             |           
            
                53.80
             |               
            
                53.00
             |                           
            
                53.80
             | 
            
                53.31
             |                     
            
                48.44
             |                                 
            
                25,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/10/2021
             | 
            
                -0.50 / -0.93%
             |             
            
                53.70
             |           
            
                54.90
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.75
             |                     
            
                48.16
             |                                 
            
                37,600
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2021
             | 
            
                -1.00 / -1.82%
             |             
            
                53.70
             |           
            
                54.90
             |               
            
                53.70
             |                           
            
                54.00
             | 
            
                54.11
             |                     
            
                48.62
             |                                 
            
                12,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2021
             | 
            
                +1.60 / +3.00%
             |             
            
                53.70
             |           
            
                55.20
             |               
            
                53.60
             |                           
            
                55.00
             | 
            
                54.37
             |                     
            
                49.52
             |                                 
            
                35,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2021
             | 
            
                +1.00 / +1.91%
             |             
            
                53.00
             |           
            
                53.50
             |               
            
                52.60
             |                           
            
                53.40
             | 
            
                53.22
             |                     
            
                48.07
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2021
             | 
            
                -1.50 / -2.78%
             |             
            
                53.10
             |           
            
                54.00
             |               
            
                52.30
             |                           
            
                52.40
             | 
            
                52.90
             |                     
            
                47.17
             |                                 
            
                20,700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/3/2021
             | 
            
                -1.10 / -2.00%
             |             
            
                55.00
             |           
            
                55.60
             |               
            
                53.70
             |                           
            
                53.90
             | 
            
                55.15
             |                     
            
                48.53
             |                                 
            
                10,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/2/2021
             | 
            
                +2.10 / +3.97%
             |             
            
                56.60
             |           
            
                56.60
             |               
            
                53.70
             |                           
            
                55.00
             | 
            
                56.01
             |                     
            
                49.52
             |                                 
            
                100,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2021
             | 
            
                -0.20 / -0.38%
             |             
            
                53.20
             |           
            
                53.50
             |               
            
                52.70
             |                           
            
                52.90
             | 
            
                52.97
             |                     
            
                47.62
             |                                 
            
                15,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2021
             | 
            
                0.00 / 0.00%
             |             
            
                53.10
             |           
            
                54.00
             |               
            
                53.10
             |                           
            
                53.10
             | 
            
                53.26
             |                     
            
                47.80
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2021
             | 
            
                -1.40 / -2.57%
             |             
            
                53.20
             |           
            
                53.90
             |               
            
                53.00
             |                           
            
                53.10
             | 
            
                53.26
             |                     
            
                47.80
             |                                 
            
                45,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/26/2021
             | 
            
                +0.50 / +0.93%
             |             
            
                53.90
             |           
            
                54.90
             |               
            
                53.50
             |                           
            
                54.50
             | 
            
                54.27
             |                     
            
                49.07
             |                                 
            
                13,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2021
             | 
            
                +0.60 / +1.12%
             |             
            
                54.60
             |           
            
                54.60
             |               
            
                53.80
             |                           
            
                54.00
             | 
            
                54.08
             |                     
            
                48.62
             |                                 
            
                34,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2021
             | 
            
                -0.60 / -1.11%
             |             
            
                53.80
             |           
            
                54.00
             |               
            
                53.40
             |                           
            
                53.40
             | 
            
                53.56
             |                     
            
                48.07
             |                                 
            
                64,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2021
             | 
            
                +0.40 / +0.75%
             |             
            
                54.00
             |           
            
                55.00
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.35
             |                     
            
                48.62
             |                                 
            
                14,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2021
             | 
            
                -0.40 / -0.74%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                53.60
             |                           
            
                53.60
             | 
            
                54.15
             |                     
            
                48.25
             |                                 
            
                13,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/19/2021
             | 
            
                -1.40 / -2.53%
             |             
            
                55.00
             |           
            
                55.20
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.78
             |                     
            
                48.62
             |                                 
            
                40,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2021
             | 
            
                +0.80 / +1.47%
             |             
            
                55.00
             |           
            
                56.00
             |               
            
                54.60
             |                           
            
                55.40
             | 
            
                55.24
             |                     
            
                49.88
             |                                 
            
                67,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2021
             | 
            
                +0.10 / +0.18%
             |             
            
                54.60
             |           
            
                55.50
             |               
            
                54.60
             |                           
            
                54.60
             | 
            
                54.81
             |                     
            
                49.16
             |                                 
            
                17,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2021
             | 
            
                -1.50 / -2.68%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                54.50
             |                           
            
                54.50
             | 
            
                54.98
             |                     
            
                49.07
             |                                 
            
                46,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2021
             | 
            
                +1.60 / +2.94%
             |             
            
                54.00
             |           
            
                56.00
             |               
            
                54.00
             |                           
            
                56.00
             | 
            
                54.75
             |                     
            
                50.42
             |                                 
            
                37,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2021
             | 
            
                0.00 / 0.00%
             |             
            
                53.50
             |           
            
                54.40
             |               
            
                53.40
             |                           
            
                54.40
             | 
            
                53.67
             |                     
            
                48.98
             |                                 
            
                33,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2021
             | 
            
                -0.40 / -0.73%
             |             
            
                54.80
             |           
            
                54.80
             |               
            
                53.80
             |                           
            
                54.40
             | 
            
                54.27
             |                     
            
                48.98
             |                                 
            
                45,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2021
             | 
            
                +0.30 / +0.55%
             |             
            
                54.50
             |           
            
                55.00
             |               
            
                54.00
             |                           
            
                54.80
             | 
            
                54.41
             |                     
            
                49.34
             |                                 
            
                33,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2021
             | 
            
                -0.40 / -0.73%
             |             
            
                54.50
             |           
            
                55.20
             |               
            
                54.30
             |                           
            
                54.50
             | 
            
                54.57
             |                     
            
                49.07
             |                                 
            
                25,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2021
             | 
            
                +0.60 / +1.10%
             |             
            
                54.30
             |           
            
                56.00
             |               
            
                54.30
             |                           
            
                54.90
             | 
            
                55.09
             |                     
            
                49.43
             |                                 
            
                42,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2021
             | 
            
                +0.50 / +0.93%
             |             
            
                53.80
             |           
            
                54.90
             |               
            
                53.80
             |                           
            
                54.30
             | 
            
                54.21
             |                     
            
                48.89
             |                                 
            
                51,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2021
             | 
            
                -0.70 / -1.28%
             |             
            
                54.50
             |           
            
                54.50
             |               
            
                53.50
             |                           
            
                53.80
             | 
            
                53.82
             |                     
            
                48.44
             |                                 
            
                28,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/3/2021
             | 
            
                -0.40 / -0.73%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                54.00
             |                           
            
                54.50
             | 
            
                54.64
             |                     
            
                49.07
             |                                 
            
                36,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |