| 
                 
                    Closing price on 8/3/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.70 | 
                 
                
                    | High | 
                    9.70 | 
                 
                
                    | Low | 
                    9.70 | 
                     
                
                    | Volume | 
                    3,800 | 
                                 
                
                    | Split-adjusted Price | 
                    9.42 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
AMS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/3/2021
             | 
            
                +0.20 / +2.11%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.70
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                9.42
             |                                 
            
                3,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2021
             | 
            
                +0.10 / +1.09%
             |             
            
                9.50
             |           
            
                9.90
             |               
            
                9.30
             |                           
            
                9.30
             | 
            
                9.50
             |                     
            
                9.03
             |                                 
            
                52,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2021
             | 
            
                -0.30 / -3.19%
             |             
            
                9.40
             |           
            
                9.50
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.20
             |                     
            
                8.84
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.50
             |           
            
                9.60
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.40
             |                     
            
                9.23
             |                                 
            
                10,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2021
             | 
            
                +0.10 / +1.06%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.50
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.23
             |                                 
            
                5,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2021
             | 
            
                -0.30 / -3.06%
             |             
            
                9.30
             |           
            
                9.60
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.40
             |                     
            
                9.23
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2021
             | 
            
                +0.30 / +3.16%
             |             
            
                9.80
             |           
            
                9.80
             |               
            
                9.80
             |                           
            
                9.80
             | 
            
                9.80
             |                     
            
                9.52
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                9.50
             |           
            
                9.60
             |               
            
                9.40
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.23
             |                                 
            
                46,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2021
             | 
            
                +0.40 / +4.26%
             |             
            
                9.50
             |           
            
                9.80
             |               
            
                9.20
             |                           
            
                9.80
             | 
            
                9.50
             |                     
            
                9.52
             |                                 
            
                18,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2021
             | 
            
                +0.10 / +1.10%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.40
             |                     
            
                8.94
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2021
             | 
            
                +0.20 / +2.17%
             |             
            
                9.20
             |           
            
                9.50
             |               
            
                8.90
             |                           
            
                9.40
             | 
            
                9.10
             |                     
            
                9.13
             |                                 
            
                46,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2021
             | 
            
                -0.40 / -4.21%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                9.10
             |                           
            
                9.10
             | 
            
                9.20
             |                     
            
                8.84
             |                                 
            
                32,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2021
             | 
            
                -0.30 / -3.06%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.40
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                9.23
             |                                 
            
                19,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2021
             | 
            
                0.00 / 0.00%
             |             
            
                10.20
             |           
            
                10.20
             |               
            
                9.70
             |                           
            
                9.70
             | 
            
                9.80
             |                     
            
                9.42
             |                                 
            
                20,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2021
             | 
            
                +0.10 / +1.05%
             |             
            
                9.70
             |           
            
                10.80
             |               
            
                9.50
             |                           
            
                9.60
             | 
            
                9.70
             |                     
            
                9.33
             |                                 
            
                10,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2021
             | 
            
                +0.40 / +4.35%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.40
             |                           
            
                9.60
             | 
            
                9.50
             |                     
            
                9.33
             |                                 
            
                8,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2021
             | 
            
                -1.30 / -12.50%
             |             
            
                10.00
             |           
            
                10.30
             |               
            
                9.00
             |                           
            
                9.10
             | 
            
                9.20
             |                     
            
                8.84
             |                                 
            
                36,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2021
             | 
            
                -0.40 / -3.77%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.20
             |                           
            
                10.20
             | 
            
                10.40
             |                     
            
                9.91
             |                                 
            
                12,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2021
             | 
            
                +0.40 / +3.92%
             |             
            
                10.70
             |           
            
                10.70
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.61
             |                     
            
                10.30
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2021
             | 
            
                -0.10 / -0.94%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                9.60
             |                           
            
                10.50
             | 
            
                10.20
             |                     
            
                10.20
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2021
             | 
            
                -0.20 / -1.90%
             |             
            
                10.50
             |           
            
                11.30
             |               
            
                10.30
             |                           
            
                10.30
             | 
            
                10.60
             |                     
            
                10.01
             |                                 
            
                53,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2021
             | 
            
                -0.20 / -1.87%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                10.30
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                10.20
             |                                 
            
                25,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2021
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                10.60
             |                           
            
                10.60
             | 
            
                10.70
             |                     
            
                10.30
             |                                 
            
                34,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2021
             | 
            
                -0.40 / -3.70%
             |             
            
                11.10
             |           
            
                11.10
             |               
            
                10.40
             |                           
            
                10.40
             | 
            
                10.60
             |                     
            
                10.10
             |                                 
            
                44,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2021
             | 
            
                0.00 / 0.00%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                10.70
             |                           
            
                11.00
             | 
            
                10.80
             |                     
            
                10.69
             |                                 
            
                25,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2021
             | 
            
                -0.10 / -0.91%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                11.00
             |                     
            
                10.59
             |                                 
            
                54,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2021
             | 
            
                -0.10 / -0.91%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                10.80
             |                           
            
                10.90
             | 
            
                11.00
             |                     
            
                10.59
             |                                 
            
                18,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2021
             | 
            
                -0.20 / -1.80%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                10.90
             |                           
            
                10.90
             | 
            
                11.00
             |                     
            
                10.59
             |                                 
            
                38,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2021
             | 
            
                -0.20 / -1.77%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.10
             | 
            
                11.10
             |                     
            
                10.78
             |                                 
            
                21,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2021
             | 
            
                -0.30 / -2.63%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.10
             |                           
            
                11.10
             | 
            
                11.30
             |                     
            
                10.78
             |                                 
            
                46,300
             |  
            
                 
             |                                                              
             
    
         
    
    
 |