| 
                 
                    Closing price on 4/18/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    51.20 | 
                 
                
                    | High | 
                    56.30 | 
                 
                
                    | Low | 
                    51.20 | 
                     
                
                    | Volume | 
                    1,300 | 
                                 
                
                    | Split-adjusted Price | 
                    48.54 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/18/2019
             | 
            
                -5.60 / -9.86%
             |             
            
                51.20
             |           
            
                56.30
             |               
            
                51.20
             |                           
            
                51.20
             | 
            
                52.42
             |                     
            
                48.54
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2019
             | 
            
                +4.80 / +9.23%
             |             
            
                47.80
             |           
            
                56.90
             |               
            
                47.80
             |                           
            
                56.80
             | 
            
                52.80
             |                     
            
                53.85
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2019
             | 
            
                +3.40 / +7.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                47.80
             |                           
            
                52.00
             | 
            
                50.60
             |                     
            
                49.30
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2019
             | 
            
                -0.90 / -1.82%
             |             
            
                48.70
             |           
            
                48.70
             |               
            
                48.60
             |                           
            
                48.60
             | 
            
                48.68
             |                     
            
                46.08
             |                                 
            
                400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2019
             | 
            
                +4.50 / +10.00%
             |             
            
                48.50
             |           
            
                49.50
             |               
            
                48.50
             |                           
            
                49.50
             | 
            
                49.00
             |                     
            
                46.93
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2019
             | 
            
                -4.00 / -8.16%
             |             
            
                49.00
             |           
            
                49.00
             |               
            
                45.00
             |                           
            
                45.00
             | 
            
                46.14
             |                     
            
                42.66
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2019
             | 
            
                -2.00 / -3.92%
             |             
            
                49.00
             |           
            
                49.00
             |               
            
                49.00
             |                           
            
                49.00
             | 
            
                49.00
             |                     
            
                46.46
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2019
             | 
            
                +1.90 / +3.87%
             |             
            
                51.00
             |           
            
                51.00
             |               
            
                51.00
             |                           
            
                51.00
             | 
            
                51.00
             |                     
            
                48.35
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2019
             | 
            
                -0.90 / -1.80%
             |             
            
                50.00
             |           
            
                51.00
             |               
            
                49.10
             |                           
            
                49.10
             | 
            
                50.89
             |                     
            
                46.55
             |                                 
            
                6,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                50.00
             |           
            
                50.00
             |               
            
                50.00
             |                           
            
                50.00
             | 
            
                50.00
             |                     
            
                47.40
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2019
             | 
            
                +1.50 / +3.09%
             |             
            
                49.00
             |           
            
                50.00
             |               
            
                49.00
             |                           
            
                50.00
             | 
            
                49.08
             |                     
            
                47.40
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2019
             | 
            
                -0.50 / -1.02%
             |             
            
                48.50
             |           
            
                48.50
             |               
            
                48.50
             |                           
            
                48.50
             | 
            
                48.50
             |                     
            
                45.98
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2019
             | 
            
                +0.90 / +1.87%
             |             
            
                51.00
             |           
            
                52.00
             |               
            
                48.10
             |                           
            
                49.00
             | 
            
                51.89
             |                     
            
                46.46
             |                                 
            
                89,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2019
             | 
            
                +0.10 / +0.21%
             |             
            
                49.00
             |           
            
                51.60
             |               
            
                48.10
             |                           
            
                48.10
             | 
            
                49.57
             |                     
            
                45.60
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2019
             | 
            
                +0.50 / +1.05%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2019
             | 
            
                -0.50 / -1.04%
             |             
            
                47.50
             |           
            
                47.50
             |               
            
                47.50
             |                           
            
                47.50
             | 
            
                47.50
             |                     
            
                45.03
             |                                 
            
                56,170
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2019
             | 
            
                0.00 / 0.00%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2019
             | 
            
                -1.50 / -3.03%
             |             
            
                48.00
             |           
            
                48.00
             |               
            
                48.00
             |                           
            
                48.00
             | 
            
                48.00
             |                     
            
                45.51
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2019
             | 
            
                +2.80 / +6.00%
             |             
            
                49.50
             |           
            
                49.50
             |               
            
                49.50
             |                           
            
                49.50
             | 
            
                49.50
             |                     
            
                46.93
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                46.70
             |           
            
                46.70
             |               
            
                46.70
             |                           
            
                46.70
             | 
            
                46.70
             |                     
            
                44.28
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2019
             | 
            
                +0.20 / +0.43%
             |             
            
                46.70
             |           
            
                46.70
             |               
            
                46.70
             |                           
            
                46.70
             | 
            
                46.70
             |                     
            
                44.28
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                46.00
             |           
            
                46.50
             |               
            
                46.00
             |                           
            
                46.50
             | 
            
                46.15
             |                     
            
                44.09
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2019
             | 
            
                -0.50 / -1.06%
             |             
            
                46.00
             |           
            
                46.50
             |               
            
                46.00
             |                           
            
                46.50
             | 
            
                46.31
             |                     
            
                44.09
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                46.00
             |           
            
                47.00
             |               
            
                46.00
             |                           
            
                47.00
             | 
            
                46.62
             |                     
            
                44.56
             |                                 
            
                7,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                47.00
             |           
            
                47.00
             |               
            
                47.00
             |                           
            
                47.00
             | 
            
                47.00
             |                     
            
                44.56
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2019
             | 
            
                +1.00 / +2.17%
             |             
            
                46.00
             |           
            
                47.00
             |               
            
                46.00
             |                           
            
                47.00
             | 
            
                46.60
             |                     
            
                44.56
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |