| 
                 
                    Closing price on 6/28/2022
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.50 | 
                 
                
                    | High | 
                    9.50 | 
                 
                
                    | Low | 
                    8.60 | 
                     
                
                    | Volume | 
                    7,600 | 
                                 
                
                    | Split-adjusted Price | 
                    8.11 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
XMC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/28/2022
             | 
            
                +0.20 / +2.20%
             |             
            
                9.50
             |           
            
                9.50
             |               
            
                8.60
             |                           
            
                9.30
             | 
            
                9.40
             |                     
            
                8.11
             |                                 
            
                7,600
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2022
             | 
            
                +0.20 / +2.27%
             |             
            
                9.10
             |           
            
                9.10
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.10
             |                     
            
                7.85
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2022
             | 
            
                +0.80 / +9.88%
             |             
            
                8.20
             |           
            
                9.00
             |               
            
                8.20
             |                           
            
                8.90
             | 
            
                8.80
             |                     
            
                7.76
             |                                 
            
                10,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2022
             | 
            
                +0.30 / +3.57%
             |             
            
                8.20
             |           
            
                8.70
             |               
            
                8.00
             |                           
            
                8.70
             | 
            
                8.10
             |                     
            
                7.59
             |                                 
            
                48,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2022
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                7.33
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2022
             | 
            
                -0.60 / -6.98%
             |             
            
                8.00
             |           
            
                9.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.40
             |                     
            
                6.98
             |                                 
            
                32,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2022
             | 
            
                +0.20 / +2.20%
             |             
            
                9.10
             |           
            
                9.40
             |               
            
                7.80
             |                           
            
                9.30
             | 
            
                8.60
             |                     
            
                8.11
             |                                 
            
                11,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2022
             | 
            
                0.00 / 0.00%
             |             
            
                9.80
             |           
            
                9.80
             |               
            
                9.00
             |                           
            
                9.60
             | 
            
                9.10
             |                     
            
                8.37
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2022
             | 
            
                +0.40 / +4.17%
             |             
            
                9.60
             |           
            
                10.00
             |               
            
                9.60
             |                           
            
                10.00
             | 
            
                9.60
             |                     
            
                8.72
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2022
             | 
            
                -1.50 / -13.76%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                9.30
             |                           
            
                9.40
             | 
            
                9.60
             |                     
            
                8.20
             |                                 
            
                18,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2022
             | 
            
                -0.10 / -0.92%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.90
             |                     
            
                9.42
             |                                 
            
                5,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2022
             | 
            
                -0.30 / -2.70%
             |             
            
                10.60
             |           
            
                11.10
             |               
            
                10.60
             |                           
            
                10.80
             | 
            
                10.90
             |                     
            
                9.42
             |                                 
            
                12,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2022
             | 
            
                +0.10 / +0.88%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                10.00
             |                           
            
                11.40
             | 
            
                11.10
             |                     
            
                9.94
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2022
             | 
            
                -0.10 / -0.87%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                11.00
             |                           
            
                11.40
             | 
            
                11.30
             |                     
            
                9.94
             |                                 
            
                13,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2022
             | 
            
                +0.30 / +2.73%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.50
             |                     
            
                9.85
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2022
             | 
            
                -0.20 / -1.82%
             |             
            
                12.60
             |           
            
                12.60
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                11.00
             |                     
            
                9.42
             |                                 
            
                2,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2022
             | 
            
                +0.20 / +1.82%
             |             
            
                10.90
             |           
            
                11.20
             |               
            
                10.90
             |                           
            
                11.20
             | 
            
                11.00
             |                     
            
                9.77
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2022
             | 
            
                -0.20 / -1.79%
             |             
            
                11.00
             |           
            
                11.00
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.00
             |                     
            
                9.59
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2022
             | 
            
                -0.10 / -0.90%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.00
             |                           
            
                11.00
             | 
            
                11.20
             |                     
            
                9.59
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2022
             | 
            
                -0.10 / -0.88%
             |             
            
                11.30
             |           
            
                11.30
             |               
            
                11.00
             |                           
            
                11.30
             | 
            
                11.10
             |                     
            
                9.85
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2022
             | 
            
                +0.10 / +0.88%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.40
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                9.94
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2022
             | 
            
                -0.10 / -0.88%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                9.85
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2022
             | 
            
                +0.20 / +1.79%
             |             
            
                11.30
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                9.94
             |                                 
            
                11,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2022
             | 
            
                +0.20 / +1.82%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.20
             |                     
            
                9.77
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2022
             | 
            
                +0.30 / +2.75%
             |             
            
                11.00
             |           
            
                11.40
             |               
            
                11.00
             |                           
            
                11.20
             | 
            
                11.00
             |                     
            
                9.77
             |                                 
            
                10,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2022
             | 
            
                -0.30 / -2.65%
             |             
            
                11.20
             |           
            
                11.20
             |               
            
                10.80
             |                           
            
                11.00
             | 
            
                10.90
             |                     
            
                9.59
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/23/2022
             | 
            
                -0.10 / -0.88%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.00
             |                           
            
                11.30
             | 
            
                11.30
             |                     
            
                9.85
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2022
             | 
            
                +0.10 / +0.88%
             |             
            
                11.40
             |           
            
                11.40
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.40
             |                     
            
                9.94
             |                                 
            
                8,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2022
             | 
            
                0.00 / 0.00%
             |             
            
                11.20
             |           
            
                11.30
             |               
            
                11.20
             |                           
            
                11.20
             | 
            
                11.30
             |                     
            
                9.77
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2022
             | 
            
                +0.60 / +5.56%
             |             
            
                11.50
             |           
            
                11.50
             |               
            
                11.00
             |                           
            
                11.40
             | 
            
                11.20
             |                     
            
                9.94
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |