| 
                 
                    Closing price on 7/28/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    10.80 | 
                 
                
                    | High | 
                    10.80 | 
                 
                
                    | Low | 
                    10.80 | 
                     
                
                    | Volume | 
                    0 | 
                                 
                
                    | Split-adjusted Price | 
                    8.02 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MDC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/28/2020
             | 
            
                0.00 / 0.00%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                8.02
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2020
             | 
            
                0.00 / 0.00%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                8.02
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2020
             | 
            
                +0.90 / +9.09%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                10.80
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                8.02
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                7.35
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                7.35
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2020
             | 
            
                -0.10 / -1.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                7.35
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2020
             | 
            
                0.00 / 0.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                7.42
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2020
             | 
            
                +0.10 / +1.01%
             |             
            
                10.80
             |           
            
                10.80
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.02
             |                     
            
                7.42
             |                                 
            
                5,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2020
             | 
            
                0.00 / 0.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                7.35
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2020
             | 
            
                +0.90 / +10.00%
             |             
            
                9.90
             |           
            
                9.90
             |               
            
                9.90
             |                           
            
                9.90
             | 
            
                9.90
             |                     
            
                7.35
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2020
             | 
            
                +0.80 / +9.76%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                9.00
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                6.68
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2020
             | 
            
                +0.70 / +9.33%
             |             
            
                8.20
             |           
            
                8.20
             |               
            
                8.20
             |                           
            
                8.20
             | 
            
                8.20
             |                     
            
                6.09
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.57
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2020
             | 
            
                +0.50 / +7.14%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.57
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2020
             | 
            
                +0.20 / +2.94%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.00
             |                     
            
                5.20
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2020
             | 
            
                +0.60 / +9.68%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                5.05
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2020
             | 
            
                -0.60 / -8.82%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                6.20
             |                           
            
                6.20
             | 
            
                6.70
             |                     
            
                4.60
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2020
             | 
            
                -0.70 / -9.33%
             |             
            
                6.80
             |           
            
                6.80
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.80
             |                     
            
                5.05
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2020
             | 
            
                -0.40 / -5.06%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.50
             |                     
            
                5.57
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.42
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2020
             | 
            
                -0.10 / -1.25%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.42
             |                                 
            
                18,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2020
             | 
            
                +0.10 / +1.27%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                8.00
             |                           
            
                8.00
             | 
            
                8.00
             |                     
            
                5.49
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.42
             |                                 
            
                18,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.42
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2020
             | 
            
                +0.10 / +1.28%
             |             
            
                7.90
             |           
            
                7.90
             |               
            
                7.90
             |                           
            
                7.90
             | 
            
                7.90
             |                     
            
                5.42
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2020
             | 
            
                +0.50 / +6.85%
             |             
            
                7.70
             |           
            
                7.80
             |               
            
                7.70
             |                           
            
                7.80
             | 
            
                7.78
             |                     
            
                5.35
             |                                 
            
                27,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.01
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.01
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.01
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2020
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.30
             |                           
            
                7.30
             | 
            
                7.30
             |                     
            
                5.01
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |