| 
                 
                    Closing price on 5/14/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.60 | 
                 
                
                    | High | 
                    7.70 | 
                 
                
                    | Low | 
                    7.60 | 
                     
                
                    | Volume | 
                    800 | 
                                 
                
                    | Split-adjusted Price | 
                    6.11 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AMS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/14/2018
             | 
            
                +1.00 / +14.93%
             |             
            
                7.60
             |           
            
                7.70
             |               
            
                7.60
             |                           
            
                7.70
             | 
            
                7.63
             |                     
            
                6.11
             |                                 
            
                800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                7.50
             |               
            
                6.40
             |                           
            
                7.50
             | 
            
                6.68
             |                     
            
                5.95
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2018
             | 
            
                +0.50 / +7.14%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.95
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2018
             | 
            
                -0.80 / -10.26%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.23
             |                     
            
                5.56
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2018
             | 
            
                +0.20 / +2.60%
             |             
            
                7.60
             |           
            
                7.90
             |               
            
                7.60
             |                           
            
                7.90
             | 
            
                7.80
             |                     
            
                6.27
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2018
             | 
            
                +0.30 / +4.05%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.11
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2018
             | 
            
                -0.10 / -1.33%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.87
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2018
             | 
            
                +0.10 / +1.35%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.00
             |                           
            
                7.50
             | 
            
                7.28
             |                     
            
                5.95
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2018
             | 
            
                -0.10 / -1.33%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.87
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2018
             | 
            
                -0.10 / -1.32%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.95
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                6.03
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2018
             | 
            
                -0.40 / -5.00%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                6.03
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2018
             | 
            
                +0.30 / +3.90%
             |             
            
                7.70
             |           
            
                8.00
             |               
            
                7.70
             |                           
            
                8.00
             | 
            
                7.86
             |                     
            
                6.35
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2018
             | 
            
                +1.00 / +14.93%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.11
             |                                 
            
                4,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2018
             | 
            
                -1.10 / -14.10%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.70
             |                           
            
                6.70
             | 
            
                6.70
             |                     
            
                5.32
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                7.90
             |               
            
                6.90
             |                           
            
                7.80
             | 
            
                7.78
             |                     
            
                6.19
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2018
             | 
            
                -0.20 / -2.50%
             |             
            
                7.80
             |           
            
                7.80
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                6.19
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2018
             | 
            
                +0.10 / +1.27%
             |             
            
                7.80
             |           
            
                8.00
             |               
            
                7.80
             |                           
            
                8.00
             | 
            
                7.88
             |                     
            
                6.35
             |                                 
            
                4,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2018
             | 
            
                +0.30 / +3.90%
             |             
            
                7.60
             |           
            
                8.00
             |               
            
                6.80
             |                           
            
                8.00
             | 
            
                7.86
             |                     
            
                6.35
             |                                 
            
                6,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2018
             | 
            
                +0.70 / +10.00%
             |             
            
                7.70
             |           
            
                7.70
             |               
            
                7.70
             |                           
            
                7.70
             | 
            
                7.70
             |                     
            
                6.11
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2018
             | 
            
                -1.00 / -12.50%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.63
             |                     
            
                5.56
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                8.00
             |               
            
                7.20
             |                           
            
                8.00
             | 
            
                7.89
             |                     
            
                6.35
             |                                 
            
                8,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2018
             | 
            
                +0.10 / +1.27%
             |             
            
                7.80
             |           
            
                8.00
             |               
            
                6.90
             |                           
            
                8.00
             | 
            
                7.87
             |                     
            
                6.35
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                6.90
             |                           
            
                8.00
             | 
            
                7.92
             |                     
            
                6.35
             |                                 
            
                7,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2018
             | 
            
                +1.10 / +15.94%
             |             
            
                7.90
             |           
            
                8.00
             |               
            
                6.70
             |                           
            
                8.00
             | 
            
                7.87
             |                     
            
                6.35
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |