| 
                 
                    Closing price on 2/26/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    8.60 | 
                 
                
                    | High | 
                    8.60 | 
                 
                
                    | Low | 
                    8.60 | 
                     
                
                    | Volume | 
                    0 | 
                                 
                
                    | Split-adjusted Price | 
                    6.83 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AMS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                6.83
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                8.70
             |               
            
                8.60
             |                           
            
                8.70
             | 
            
                8.63
             |                     
            
                6.91
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2018
             | 
            
                +0.10 / +1.16%
             |             
            
                8.60
             |           
            
                8.70
             |               
            
                8.60
             |                           
            
                8.70
             | 
            
                8.62
             |                     
            
                6.91
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.60
             |           
            
                8.60
             |               
            
                8.60
             |                           
            
                8.60
             | 
            
                8.60
             |                     
            
                6.83
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2018
             | 
            
                +1.10 / +13.10%
             |             
            
                8.30
             |           
            
                9.50
             |               
            
                8.10
             |                           
            
                9.50
             | 
            
                8.64
             |                     
            
                7.54
             |                                 
            
                22,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.30
             |           
            
                8.40
             |               
            
                8.30
             |                           
            
                8.40
             | 
            
                8.33
             |                     
            
                6.67
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                6.67
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2018
             | 
            
                -0.10 / -1.18%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                6.67
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.40
             |                           
            
                8.50
             | 
            
                8.41
             |                     
            
                6.75
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.10
             |                           
            
                8.50
             | 
            
                8.37
             |                     
            
                6.75
             |                                 
            
                14,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2018
             | 
            
                +0.10 / +1.19%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.40
             |                           
            
                8.50
             | 
            
                8.41
             |                     
            
                6.75
             |                                 
            
                15,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2018
             | 
            
                +0.10 / +1.19%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.10
             |                           
            
                8.50
             | 
            
                8.41
             |                     
            
                6.75
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2018
             | 
            
                -0.40 / -4.55%
             |             
            
                8.60
             |           
            
                9.00
             |               
            
                7.40
             |                           
            
                8.40
             | 
            
                8.36
             |                     
            
                6.67
             |                                 
            
                7,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2018
             | 
            
                +0.10 / +1.15%
             |             
            
                8.80
             |           
            
                8.90
             |               
            
                8.50
             |                           
            
                8.80
             | 
            
                8.64
             |                     
            
                6.98
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2018
             | 
            
                +0.50 / +6.10%
             |             
            
                8.10
             |           
            
                8.70
             |               
            
                8.10
             |                           
            
                8.70
             | 
            
                8.31
             |                     
            
                6.91
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2018
             | 
            
                +0.90 / +12.33%
             |             
            
                7.30
             |           
            
                8.20
             |               
            
                7.30
             |                           
            
                8.20
             | 
            
                7.89
             |                     
            
                6.51
             |                                 
            
                8,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2018
             | 
            
                -0.10 / -1.35%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.79
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2018
             | 
            
                +0.30 / +4.23%
             |             
            
                7.30
             |           
            
                7.40
             |               
            
                7.30
             |                           
            
                7.40
             | 
            
                7.35
             |                     
            
                5.87
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2018
             | 
            
                -0.30 / -4.05%
             |             
            
                7.30
             |           
            
                7.50
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.17
             |                     
            
                5.64
             |                                 
            
                9,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2018
             | 
            
                +0.20 / +2.78%
             |             
            
                7.00
             |           
            
                7.40
             |               
            
                7.00
             |                           
            
                7.40
             | 
            
                7.14
             |                     
            
                5.87
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2018
             | 
            
                +0.20 / +2.86%
             |             
            
                7.00
             |           
            
                7.20
             |               
            
                7.00
             |                           
            
                7.20
             | 
            
                7.03
             |                     
            
                5.71
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                +0.90 / +14.52%
             |             
            
                6.70
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                7.10
             | 
            
                6.96
             |                     
            
                5.64
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                -0.30 / -4.62%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.20
             |                     
            
                4.92
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.16
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.16
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.16
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.16
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.50
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.50
             |                     
            
                5.16
             |                                 
            
                20
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2018
             | 
            
                -1.00 / -13.33%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.50
             |                           
            
                6.50
             | 
            
                6.54
             |                     
            
                5.16
             |                                 
            
                7,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2018
             | 
            
                +0.30 / +4.17%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.95
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |