| 
                 
                    Closing price on 5/18/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    7.40 | 
                 
                
                    | High | 
                    7.40 | 
                 
                
                    | Low | 
                    7.40 | 
                     
                
                    | Volume | 
                    1,500 | 
                                 
                
                    | Split-adjusted Price | 
                    5.49 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/18/2021
             | 
            
                -0.10 / -1.33%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.49
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.57
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2021
             | 
            
                +0.10 / +1.35%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.57
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2021
             | 
            
                -0.50 / -6.33%
             |             
            
                7.40
             |           
            
                7.40
             |               
            
                7.40
             |                           
            
                7.40
             | 
            
                7.40
             |                     
            
                5.49
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.90
             |               
            
                7.50
             |                           
            
                7.90
             | 
            
                7.59
             |                     
            
                5.86
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2021
             | 
            
                -0.10 / -1.25%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.86
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.60
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                8.00
             | 
            
                7.63
             |                     
            
                5.94
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                5.94
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.80
             |           
            
                8.00
             |               
            
                7.80
             |                           
            
                8.00
             | 
            
                7.82
             |                     
            
                5.94
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2021
             | 
            
                -0.10 / -1.23%
             |             
            
                7.60
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                8.00
             | 
            
                7.67
             |                     
            
                5.94
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.01
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.01
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.01
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.01
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.10
             |           
            
                8.10
             |               
            
                8.10
             |                           
            
                8.10
             | 
            
                8.10
             |                     
            
                6.01
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2021
             | 
            
                +0.30 / +3.85%
             |             
            
                7.80
             |           
            
                8.10
             |               
            
                7.80
             |                           
            
                8.10
             | 
            
                7.84
             |                     
            
                6.01
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2021
             | 
            
                -0.10 / -1.27%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.80
             |                           
            
                7.80
             | 
            
                7.80
             |                     
            
                5.79
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2021
             | 
            
                -0.10 / -1.25%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.97
             |                     
            
                5.86
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2021
             | 
            
                -0.20 / -2.44%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                5.94
             |                                 
            
                900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.09
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2021
             | 
            
                -0.20 / -2.38%
             |             
            
                8.40
             |           
            
                8.50
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.34
             |                     
            
                6.09
             |                                 
            
                7,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.40
             |                           
            
                8.40
             | 
            
                8.40
             |                     
            
                6.24
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2021
             | 
            
                -0.10 / -1.18%
             |             
            
                8.40
             |           
            
                8.40
             |               
            
                8.10
             |                           
            
                8.40
             | 
            
                8.23
             |                     
            
                6.24
             |                                 
            
                12,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2021
             | 
            
                +0.20 / +2.41%
             |             
            
                8.00
             |           
            
                8.60
             |               
            
                8.00
             |                           
            
                8.50
             | 
            
                8.35
             |                     
            
                6.31
             |                                 
            
                13,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2021
             | 
            
                +0.30 / +3.75%
             |             
            
                8.10
             |           
            
                8.30
             |               
            
                8.10
             |                           
            
                8.30
             | 
            
                8.28
             |                     
            
                6.16
             |                                 
            
                33,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2021
             | 
            
                +0.40 / +5.26%
             |             
            
                7.60
             |           
            
                8.00
             |               
            
                7.60
             |                           
            
                8.00
             | 
            
                7.73
             |                     
            
                5.94
             |                                 
            
                6,708
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2021
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.60
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.51
             |                     
            
                5.64
             |                                 
            
                1,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2021
             | 
            
                -0.10 / -1.30%
             |             
            
                7.50
             |           
            
                7.60
             |               
            
                7.50
             |                           
            
                7.60
             | 
            
                7.51
             |                     
            
                5.64
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2021
             | 
            
                +0.10 / +1.32%
             |             
            
                7.40
             |           
            
                7.70
             |               
            
                7.40
             |                           
            
                7.70
             | 
            
                7.50
             |                     
            
                5.72
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2021
             | 
            
                +0.10 / +1.33%
             |             
            
                7.60
             |           
            
                7.60
             |               
            
                7.60
             |                           
            
                7.60
             | 
            
                7.60
             |                     
            
                5.64
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |