| 
                 
                    Closing price on 1/22/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    64.90 | 
                 
                
                    | High | 
                    66.50 | 
                 
                
                    | Low | 
                    64.90 | 
                     
                
                    | Volume | 
                    295,680 | 
                                 
                
                    | Split-adjusted Price | 
                    43.02 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/22/2018
             | 
            
                +1.30 / +2.00%
             |             
            
                64.90
             |           
            
                66.50
             |               
            
                64.90
             |                           
            
                66.20
             | 
            
                66.16
             |                     
            
                43.02
             |                                 
            
                295,680
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                +0.20 / +0.31%
             |             
            
                64.70
             |           
            
                65.30
             |               
            
                63.00
             |                           
            
                64.90
             | 
            
                64.21
             |                     
            
                42.17
             |                                 
            
                159,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                -0.50 / -0.77%
             |             
            
                65.00
             |           
            
                65.00
             |               
            
                61.80
             |                           
            
                64.70
             | 
            
                64.35
             |                     
            
                42.04
             |                                 
            
                118,340
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                +1.10 / +1.72%
             |             
            
                66.00
             |           
            
                67.00
             |               
            
                65.00
             |                           
            
                65.20
             | 
            
                66.00
             |                     
            
                42.37
             |                                 
            
                106,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2018
             | 
            
                -0.20 / -0.31%
             |             
            
                63.10
             |           
            
                64.10
             |               
            
                62.40
             |                           
            
                64.10
             | 
            
                63.38
             |                     
            
                41.65
             |                                 
            
                126,190
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2018
             | 
            
                -1.70 / -2.58%
             |             
            
                66.00
             |           
            
                66.50
             |               
            
                63.90
             |                           
            
                64.30
             | 
            
                65.05
             |                     
            
                41.78
             |                                 
            
                83,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2018
             | 
            
                +0.30 / +0.46%
             |             
            
                69.00
             |           
            
                69.00
             |               
            
                65.00
             |                           
            
                66.00
             | 
            
                65.21
             |                     
            
                42.89
             |                                 
            
                254,850
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2018
             | 
            
                -4.90 / -6.94%
             |             
            
                68.00
             |           
            
                70.60
             |               
            
                65.70
             |                           
            
                65.70
             | 
            
                67.90
             |                     
            
                42.69
             |                                 
            
                223,460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2018
             | 
            
                +4.60 / +6.97%
             |             
            
                70.60
             |           
            
                70.60
             |               
            
                70.60
             |                           
            
                70.60
             | 
            
                70.60
             |                     
            
                45.88
             |                                 
            
                193,190
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2018
             | 
            
                +4.30 / +6.97%
             |             
            
                66.00
             |           
            
                66.00
             |               
            
                66.00
             |                           
            
                66.00
             | 
            
                66.00
             |                     
            
                42.89
             |                                 
            
                243,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2018
             | 
            
                +4.00 / +6.93%
             |             
            
                61.70
             |           
            
                61.70
             |               
            
                61.70
             |                           
            
                61.70
             | 
            
                61.70
             |                     
            
                40.09
             |                                 
            
                180,720
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2018
             | 
            
                +3.70 / +6.85%
             |             
            
                57.70
             |           
            
                57.70
             |               
            
                57.70
             |                           
            
                57.70
             | 
            
                57.70
             |                     
            
                37.50
             |                                 
            
                8,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2018
             | 
            
                +54.00 / +0.00%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                35.09
             |                                 
            
                12,000
             |            
            
                 
             |                                       
         
    
         
    
    
 |