| 
                 
                    Closing price on 10/31/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.70 | 
                 
                
                    | High | 
                    8.00 | 
                 
                
                    | Low | 
                    7.70 | 
                     
                
                    | Volume | 
                    9,800 | 
                                 
                
                    | Split-adjusted Price | 
                    6.60 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AMS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/31/2018
             | 
            
                +0.20 / +2.56%
             |             
            
                7.70
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                8.00
             | 
            
                7.80
             |                     
            
                6.60
             |                                 
            
                9,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2018
             | 
            
                -0.20 / -2.50%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.81
             |                     
            
                6.43
             |                                 
            
                4,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                8.00
             |               
            
                6.80
             |                           
            
                8.00
             | 
            
                7.77
             |                     
            
                6.60
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                15,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                14,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                8,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.01
             |                     
            
                6.60
             |                                 
            
                14,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                7.98
             |                     
            
                6.60
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.60
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2018
             | 
            
                +0.30 / +3.90%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                8.00
             | 
            
                7.96
             |                     
            
                6.60
             |                                 
            
                2,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2018
             | 
            
                -0.30 / -3.75%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.93
             |                     
            
                6.35
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.35
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.35
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.35
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.35
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2018
             | 
            
                -0.20 / -2.44%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                6.35
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.51
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.20
             | 
            
                8.17
             |                     
            
                6.51
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.51
             |                                 
            
                6,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.51
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2018
             | 
            
                +0.10 / +1.23%
             |             
            
                8.10
             |           
            
                8.20
             |               
            
                8.10
             |                           
            
                8.20
             | 
            
                8.11
             |                     
            
                6.51
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.43
             |                                 
            
                53,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2018
             | 
            
                +0.10 / +1.25%
             |             
            
                8.00
             |           
            
                8.10
             |               
            
                7.90
             |                           
            
                8.10
             | 
            
                8.07
             |                     
            
                6.43
             |                                 
            
                19,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2018
             | 
            
                +0.50 / +6.67%
             |             
            
                7.70
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                8.00
             | 
            
                7.80
             |                     
            
                6.35
             |                                 
            
                10,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.30
             |                           
            
                7.50
             | 
            
                7.47
             |                     
            
                5.95
             |                                 
            
                14,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2018
             | 
            
                +0.10 / +1.35%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.95
             |                                 
            
                57,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |