| 
                 
                    Closing price on 10/25/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.50 | 
                 
                
                    | High | 
                    19.30 | 
                 
                
                    | Low | 
                    17.00 | 
                     
                
                    | Volume | 
                    99,500 | 
                                 
                
                    | Split-adjusted Price | 
                    16.97 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MDF Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/25/2021
             | 
            
                +1.80 / +10.59%
             |             
            
                17.50
             |           
            
                19.30
             |               
            
                17.00
             |                           
            
                18.80
             | 
            
                18.20
             |                     
            
                16.97
             |                                 
            
                99,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2021
             | 
            
                -0.20 / -1.14%
             |             
            
                17.00
             |           
            
                17.40
             |               
            
                17.00
             |                           
            
                17.40
             | 
            
                17.00
             |                     
            
                15.71
             |                                 
            
                6,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2021
             | 
            
                -0.80 / -4.49%
             |             
            
                17.00
             |           
            
                17.60
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.60
             |                     
            
                15.35
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/20/2021
             | 
            
                -0.50 / -2.78%
             |             
            
                18.00
             |           
            
                18.20
             |               
            
                17.50
             |                           
            
                17.50
             | 
            
                17.80
             |                     
            
                15.80
             |                                 
            
                19,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/19/2021
             | 
            
                +0.40 / +2.30%
             |             
            
                17.00
             |           
            
                18.20
             |               
            
                17.00
             |                           
            
                17.80
             | 
            
                18.00
             |                     
            
                16.07
             |                                 
            
                15,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2021
             | 
            
                -0.70 / -3.87%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                16.70
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                15.71
             |                                 
            
                30,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2021
             | 
            
                +1.30 / +7.78%
             |             
            
                18.50
             |           
            
                18.80
             |               
            
                17.40
             |                           
            
                18.00
             | 
            
                18.10
             |                     
            
                16.25
             |                                 
            
                33,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2021
             | 
            
                -0.10 / -0.60%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.60
             |                           
            
                16.70
             | 
            
                16.70
             |                     
            
                15.08
             |                                 
            
                12,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/13/2021
             | 
            
                +0.90 / +5.63%
             |             
            
                16.50
             |           
            
                17.00
             |               
            
                16.50
             |                           
            
                16.90
             | 
            
                16.80
             |                     
            
                15.26
             |                                 
            
                8,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/12/2021
             | 
            
                +0.60 / +3.77%
             |             
            
                16.10
             |           
            
                16.50
             |               
            
                15.90
             |                           
            
                16.50
             | 
            
                16.00
             |                     
            
                14.90
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2021
             | 
            
                +0.50 / +3.09%
             |             
            
                16.20
             |           
            
                16.80
             |               
            
                15.50
             |                           
            
                16.70
             | 
            
                15.90
             |                     
            
                15.08
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2021
             | 
            
                +0.40 / +2.45%
             |             
            
                16.90
             |           
            
                16.90
             |               
            
                15.40
             |                           
            
                16.70
             | 
            
                16.20
             |                     
            
                15.08
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2021
             | 
            
                -0.30 / -1.82%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.30
             |                     
            
                14.62
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2021
             | 
            
                -0.70 / -4.22%
             |             
            
                17.10
             |           
            
                17.10
             |               
            
                15.90
             |                           
            
                15.90
             | 
            
                16.50
             |                     
            
                14.35
             |                                 
            
                7,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/5/2021
             | 
            
                +1.10 / +6.75%
             |             
            
                16.30
             |           
            
                17.50
             |               
            
                16.30
             |                           
            
                17.40
             | 
            
                16.60
             |                     
            
                15.71
             |                                 
            
                2,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2021
             | 
            
                +1.90 / +12.75%
             |             
            
                15.50
             |           
            
                16.80
             |               
            
                15.50
             |                           
            
                16.80
             | 
            
                16.30
             |                     
            
                15.17
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2021
             | 
            
                -1.70 / -10.30%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.70
             |                           
            
                14.80
             | 
            
                14.90
             |                     
            
                13.36
             |                                 
            
                13,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2021
             | 
            
                0.00 / 0.00%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.50
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                14.90
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2021
             | 
            
                +1.20 / +7.84%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.50
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                14.90
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/28/2021
             | 
            
                -0.40 / -2.44%
             |             
            
                16.40
             |           
            
                16.40
             |               
            
                14.50
             |                           
            
                16.00
             | 
            
                15.30
             |                     
            
                14.44
             |                                 
            
                18,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/27/2021
             | 
            
                -2.80 / -14.66%
             |             
            
                16.70
             |           
            
                17.00
             |               
            
                16.30
             |                           
            
                16.30
             | 
            
                16.40
             |                     
            
                14.71
             |                                 
            
                27,600
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2021
             | 
            
                -0.90 / -4.76%
             |             
            
                19.50
             |           
            
                19.50
             |               
            
                18.00
             |                           
            
                18.00
             | 
            
                19.10
             |                     
            
                16.25
             |                                 
            
                5,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2021
             | 
            
                +2.40 / +14.55%
             |             
            
                18.30
             |           
            
                18.90
             |               
            
                18.30
             |                           
            
                18.90
             | 
            
                18.90
             |                     
            
                17.06
             |                                 
            
                36,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2021
             | 
            
                +2.20 / +14.38%
             |             
            
                16.10
             |           
            
                17.50
             |               
            
                16.00
             |                           
            
                17.50
             | 
            
                16.50
             |                     
            
                15.80
             |                                 
            
                39,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/21/2021
             | 
            
                0.00 / 0.00%
             |             
            
                15.20
             |           
            
                15.90
             |               
            
                15.20
             |                           
            
                15.90
             | 
            
                15.30
             |                     
            
                14.35
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/20/2021
             | 
            
                +1.20 / +8.22%
             |             
            
                15.00
             |           
            
                16.50
             |               
            
                15.00
             |                           
            
                15.80
             | 
            
                15.90
             |                     
            
                14.26
             |                                 
            
                37,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2021
             | 
            
                +0.70 / +4.96%
             |             
            
                14.20
             |           
            
                14.90
             |               
            
                14.20
             |                           
            
                14.80
             | 
            
                14.60
             |                     
            
                13.36
             |                                 
            
                13,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2021
             | 
            
                -0.10 / -0.70%
             |             
            
                14.00
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.10
             | 
            
                14.10
             |                     
            
                12.73
             |                                 
            
                13,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2021
             | 
            
                -0.10 / -0.68%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                14.00
             |                           
            
                14.50
             | 
            
                14.20
             |                     
            
                13.09
             |                                 
            
                9,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2021
             | 
            
                +0.50 / +3.50%
             |             
            
                14.50
             |           
            
                14.80
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.60
             |                     
            
                13.36
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |