| 
                 
                    Closing price on 6/4/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    54.00 | 
                 
                
                    | High | 
                    56.00 | 
                 
                
                    | Low | 
                    53.80 | 
                     
                
                    | Volume | 
                    239,040 | 
                                 
                
                    | Split-adjusted Price | 
                    48.80 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/4/2020
             | 
            
                +1.70 / +3.16%
             |             
            
                54.00
             |           
            
                56.00
             |               
            
                53.80
             |                           
            
                55.50
             | 
            
                55.15
             |                     
            
                48.80
             |                                 
            
                239,040
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2020
             | 
            
                -1.00 / -1.82%
             |             
            
                54.80
             |           
            
                54.80
             |               
            
                53.60
             |                           
            
                53.80
             | 
            
                53.84
             |                     
            
                47.31
             |                                 
            
                132,530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2020
             | 
            
                +0.60 / +1.11%
             |             
            
                54.20
             |           
            
                55.20
             |               
            
                53.90
             |                           
            
                54.80
             | 
            
                54.56
             |                     
            
                48.19
             |                                 
            
                103,360
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2020
             | 
            
                +0.10 / +0.18%
             |             
            
                54.50
             |           
            
                54.80
             |               
            
                53.90
             |                           
            
                54.20
             | 
            
                54.05
             |                     
            
                47.66
             |                                 
            
                118,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/29/2020
             | 
            
                +0.10 / +0.19%
             |             
            
                54.00
             |           
            
                54.90
             |               
            
                53.80
             |                           
            
                54.10
             | 
            
                54.16
             |                     
            
                47.57
             |                                 
            
                38,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2020
             | 
            
                -0.60 / -1.10%
             |             
            
                54.60
             |           
            
                54.60
             |               
            
                53.50
             |                           
            
                54.00
             | 
            
                54.01
             |                     
            
                47.48
             |                                 
            
                52,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2020
             | 
            
                +0.80 / +1.49%
             |             
            
                54.60
             |           
            
                55.80
             |               
            
                54.30
             |                           
            
                54.60
             | 
            
                54.98
             |                     
            
                48.01
             |                                 
            
                166,790
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2020
             | 
            
                0.00 / 0.00%
             |             
            
                53.80
             |           
            
                54.20
             |               
            
                53.60
             |                           
            
                53.80
             | 
            
                53.83
             |                     
            
                47.31
             |                                 
            
                77,370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2020
             | 
            
                +0.80 / +1.51%
             |             
            
                53.00
             |           
            
                54.10
             |               
            
                53.00
             |                           
            
                53.80
             | 
            
                53.47
             |                     
            
                47.31
             |                                 
            
                88,430
             |            
            
                 
             |                                       
         
    
        
            | 
                5/22/2020
             | 
            
                -1.30 / -2.39%
             |             
            
                54.30
             |           
            
                54.40
             |               
            
                53.00
             |                           
            
                53.00
             | 
            
                53.90
             |                     
            
                46.61
             |                                 
            
                109,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2020
             | 
            
                -0.90 / -1.63%
             |             
            
                55.10
             |           
            
                55.70
             |               
            
                54.20
             |                           
            
                54.30
             | 
            
                54.80
             |                     
            
                47.75
             |                                 
            
                86,650
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2020
             | 
            
                +0.20 / +0.36%
             |             
            
                55.00
             |           
            
                56.60
             |               
            
                55.00
             |                           
            
                55.20
             | 
            
                55.60
             |                     
            
                48.54
             |                                 
            
                136,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2020
             | 
            
                +1.20 / +2.23%
             |             
            
                54.90
             |           
            
                55.30
             |               
            
                54.10
             |                           
            
                55.00
             | 
            
                54.84
             |                     
            
                48.36
             |                                 
            
                155,370
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2020
             | 
            
                -0.10 / -0.19%
             |             
            
                53.50
             |           
            
                54.20
             |               
            
                52.30
             |                           
            
                53.80
             | 
            
                53.42
             |                     
            
                47.31
             |                                 
            
                71,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/15/2020
             | 
            
                -2.10 / -3.75%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                53.60
             |                           
            
                53.90
             | 
            
                54.31
             |                     
            
                47.40
             |                                 
            
                170,140
             |            
            
                 
             |                                       
         
    
        
            | 
                5/14/2020
             | 
            
                -0.40 / -0.71%
             |             
            
                56.40
             |           
            
                56.60
             |               
            
                54.00
             |                           
            
                56.00
             | 
            
                55.95
             |                     
            
                49.24
             |                                 
            
                86,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/13/2020
             | 
            
                +1.40 / +2.55%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                56.00
             |                           
            
                56.40
             | 
            
                56.61
             |                     
            
                49.59
             |                                 
            
                170,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/12/2020
             | 
            
                +3.20 / +6.18%
             |             
            
                53.00
             |           
            
                55.00
             |               
            
                52.30
             |                           
            
                55.00
             | 
            
                53.83
             |                     
            
                48.36
             |                                 
            
                361,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/11/2020
             | 
            
                -0.50 / -0.96%
             |             
            
                52.10
             |           
            
                52.20
             |               
            
                51.20
             |                           
            
                51.80
             | 
            
                51.81
             |                     
            
                45.55
             |                                 
            
                85,170
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2020
             | 
            
                +0.60 / +1.16%
             |             
            
                52.90
             |           
            
                52.90
             |               
            
                51.80
             |                           
            
                52.30
             | 
            
                52.33
             |                     
            
                45.99
             |                                 
            
                98,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/7/2020
             | 
            
                +0.70 / +1.37%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                51.70
             | 
            
                51.81
             |                     
            
                45.46
             |                                 
            
                80,480
             |            
            
                 
             |                                       
         
    
        
            | 
                5/6/2020
             | 
            
                -0.80 / -1.54%
             |             
            
                51.90
             |           
            
                51.90
             |               
            
                50.50
             |                           
            
                51.00
             | 
            
                51.15
             |                     
            
                44.85
             |                                 
            
                79,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2020
             | 
            
                -0.70 / -1.33%
             |             
            
                52.40
             |           
            
                52.40
             |               
            
                51.10
             |                           
            
                51.80
             | 
            
                51.81
             |                     
            
                45.55
             |                                 
            
                38,120
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2020
             | 
            
                -1.10 / -2.05%
             |             
            
                54.50
             |           
            
                54.50
             |               
            
                52.50
             |                           
            
                52.50
             | 
            
                53.65
             |                     
            
                46.17
             |                                 
            
                55,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/29/2020
             | 
            
                +1.90 / +3.68%
             |             
            
                51.70
             |           
            
                54.00
             |               
            
                51.70
             |                           
            
                53.60
             | 
            
                53.33
             |                     
            
                47.13
             |                                 
            
                103,160
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2020
             | 
            
                +0.70 / +1.37%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                51.70
             | 
            
                51.36
             |                     
            
                45.46
             |                                 
            
                43,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2020
             | 
            
                -2.80 / -5.20%
             |             
            
                53.80
             |           
            
                54.00
             |               
            
                50.90
             |                           
            
                51.00
             | 
            
                52.24
             |                     
            
                44.85
             |                                 
            
                147,330
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2020
             | 
            
                -1.10 / -2.00%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                53.20
             |                           
            
                53.80
             | 
            
                53.99
             |                     
            
                47.31
             |                                 
            
                44,750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2020
             | 
            
                +0.40 / +0.73%
             |             
            
                54.60
             |           
            
                57.00
             |               
            
                54.60
             |                           
            
                54.90
             | 
            
                55.54
             |                     
            
                48.28
             |                                 
            
                73,930
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2020
             | 
            
                +0.30 / +0.55%
             |             
            
                50.80
             |           
            
                54.60
             |               
            
                50.80
             |                           
            
                54.50
             | 
            
                52.85
             |                     
            
                47.92
             |                                 
            
                75,950
             |  
            
                 
             |                                                              
             
    
         
    
    
 |