| 
                 
                    Closing price on 2/24/2022
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    63.80 | 
                 
                
                    | High | 
                    63.80 | 
                 
                
                    | Low | 
                    59.10 | 
                     
                
                    | Volume | 
                    87,000 | 
                                 
                
                    | Split-adjusted Price | 
                    54.65 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/24/2022
             | 
            
                -2.20 / -3.50%
             |             
            
                63.80
             |           
            
                63.80
             |               
            
                59.10
             |                           
            
                60.70
             | 
            
                60.96
             |                     
            
                54.65
             |                                 
            
                87,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2022
             | 
            
                -1.10 / -1.72%
             |             
            
                64.00
             |           
            
                64.20
             |               
            
                62.90
             |                           
            
                62.90
             | 
            
                63.72
             |                     
            
                56.63
             |                                 
            
                39,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2022
             | 
            
                -0.10 / -0.16%
             |             
            
                62.90
             |           
            
                64.60
             |               
            
                62.50
             |                           
            
                64.00
             | 
            
                63.75
             |                     
            
                57.62
             |                                 
            
                47,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2022
             | 
            
                +1.20 / +1.91%
             |             
            
                64.00
             |           
            
                64.50
             |               
            
                62.10
             |                           
            
                64.10
             | 
            
                63.72
             |                     
            
                57.71
             |                                 
            
                74,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2022
             | 
            
                +2.90 / +4.83%
             |             
            
                60.00
             |           
            
                63.00
             |               
            
                60.00
             |                           
            
                62.90
             | 
            
                61.84
             |                     
            
                56.63
             |                                 
            
                93,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2022
             | 
            
                +1.40 / +2.39%
             |             
            
                58.00
             |           
            
                60.00
             |               
            
                58.00
             |                           
            
                60.00
             | 
            
                58.82
             |                     
            
                54.02
             |                                 
            
                71,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2022
             | 
            
                +0.20 / +0.34%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.40
             |                           
            
                58.60
             | 
            
                58.61
             |                     
            
                52.76
             |                                 
            
                20,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2022
             | 
            
                +0.40 / +0.69%
             |             
            
                58.20
             |           
            
                58.40
             |               
            
                57.60
             |                           
            
                58.40
             | 
            
                58.10
             |                     
            
                52.58
             |                                 
            
                12,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2022
             | 
            
                +1.20 / +2.11%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                57.80
             |                           
            
                58.00
             | 
            
                58.28
             |                     
            
                52.22
             |                                 
            
                36,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/11/2022
             | 
            
                -0.40 / -0.70%
             |             
            
                57.20
             |           
            
                57.20
             |               
            
                56.50
             |                           
            
                56.80
             | 
            
                56.83
             |                     
            
                51.14
             |                                 
            
                39,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2022
             | 
            
                -0.40 / -0.69%
             |             
            
                56.40
             |           
            
                57.60
             |               
            
                56.40
             |                           
            
                57.20
             | 
            
                57.25
             |                     
            
                51.50
             |                                 
            
                28,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2022
             | 
            
                -0.80 / -1.37%
             |             
            
                59.90
             |           
            
                59.90
             |               
            
                56.20
             |                           
            
                57.60
             | 
            
                58.17
             |                     
            
                51.86
             |                                 
            
                23,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2022
             | 
            
                +1.80 / +3.18%
             |             
            
                59.20
             |           
            
                59.20
             |               
            
                57.50
             |                           
            
                58.40
             | 
            
                58.65
             |                     
            
                52.58
             |                                 
            
                47,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2022
             | 
            
                +3.70 / +6.99%
             |             
            
                54.30
             |           
            
                56.60
             |               
            
                54.00
             |                           
            
                56.60
             | 
            
                56.38
             |                     
            
                50.96
             |                                 
            
                102,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2022
             | 
            
                0.00 / 0.00%
             |             
            
                52.20
             |           
            
                53.20
             |               
            
                52.20
             |                           
            
                52.90
             | 
            
                52.77
             |                     
            
                47.62
             |                                 
            
                24,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/27/2022
             | 
            
                +0.80 / +1.54%
             |             
            
                52.10
             |           
            
                52.90
             |               
            
                52.10
             |                           
            
                52.90
             | 
            
                52.64
             |                     
            
                47.62
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2022
             | 
            
                +0.50 / +0.97%
             |             
            
                52.00
             |           
            
                53.20
             |               
            
                52.00
             |                           
            
                52.10
             | 
            
                52.83
             |                     
            
                46.90
             |                                 
            
                26,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2022
             | 
            
                +0.30 / +0.58%
             |             
            
                51.50
             |           
            
                52.00
             |               
            
                51.50
             |                           
            
                51.60
             | 
            
                51.65
             |                     
            
                46.45
             |                                 
            
                14,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2022
             | 
            
                -0.50 / -0.97%
             |             
            
                52.30
             |           
            
                52.30
             |               
            
                51.30
             |                           
            
                51.30
             | 
            
                51.59
             |                     
            
                46.18
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2022
             | 
            
                -0.10 / -0.19%
             |             
            
                52.20
             |           
            
                52.20
             |               
            
                50.80
             |                           
            
                51.80
             | 
            
                51.07
             |                     
            
                46.63
             |                                 
            
                23,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2022
             | 
            
                -0.20 / -0.38%
             |             
            
                52.10
             |           
            
                52.10
             |               
            
                51.50
             |                           
            
                51.90
             | 
            
                51.81
             |                     
            
                46.72
             |                                 
            
                15,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2022
             | 
            
                -0.10 / -0.19%
             |             
            
                52.40
             |           
            
                52.90
             |               
            
                52.00
             |                           
            
                52.10
             | 
            
                52.56
             |                     
            
                46.90
             |                                 
            
                13,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2022
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                53.10
             |               
            
                51.80
             |                           
            
                52.20
             | 
            
                52.83
             |                     
            
                46.99
             |                                 
            
                26,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2022
             | 
            
                +0.70 / +1.36%
             |             
            
                51.90
             |           
            
                52.80
             |               
            
                51.60
             |                           
            
                52.20
             | 
            
                51.94
             |                     
            
                46.99
             |                                 
            
                34,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2022
             | 
            
                -1.30 / -2.46%
             |             
            
                52.00
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                51.96
             |                     
            
                46.36
             |                                 
            
                20,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/13/2022
             | 
            
                +0.30 / +0.57%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                52.40
             |                           
            
                52.80
             | 
            
                52.69
             |                     
            
                47.53
             |                                 
            
                6,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2022
             | 
            
                -0.20 / -0.38%
             |             
            
                52.70
             |           
            
                52.70
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                47.26
             |                                 
            
                8,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2022
             | 
            
                -0.60 / -1.13%
             |             
            
                53.30
             |           
            
                53.50
             |               
            
                52.50
             |                           
            
                52.70
             | 
            
                53.13
             |                     
            
                47.44
             |                                 
            
                17,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2022
             | 
            
                +0.30 / +0.57%
             |             
            
                52.70
             |           
            
                53.30
             |               
            
                52.40
             |                           
            
                53.30
             | 
            
                52.78
             |                     
            
                47.98
             |                                 
            
                17,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/7/2022
             | 
            
                -0.50 / -0.93%
             |             
            
                53.20
             |           
            
                53.40
             |               
            
                52.40
             |                           
            
                53.00
             | 
            
                52.88
             |                     
            
                47.71
             |                                 
            
                7,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |