| 
                 
                    Closing price on 5/2/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    65.00 | 
                 
                
                    | High | 
                    65.00 | 
                 
                
                    | Low | 
                    64.80 | 
                     
                
                    | Volume | 
                    6,100 | 
                                 
                
                    | Split-adjusted Price | 
                    57.62 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/2/2018
             | 
            
                -7.20 / -10.00%
             |             
            
                65.00
             |           
            
                65.00
             |               
            
                64.80
             |                           
            
                64.80
             | 
            
                64.81
             |                     
            
                57.62
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2018
             | 
            
                -2.00 / -2.70%
             |             
            
                70.30
             |           
            
                72.00
             |               
            
                69.00
             |                           
            
                72.00
             | 
            
                70.15
             |                     
            
                64.02
             |                                 
            
                1,359
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2018
             | 
            
                +2.00 / +2.78%
             |             
            
                75.00
             |           
            
                75.00
             |               
            
                70.10
             |                           
            
                74.00
             | 
            
                72.76
             |                     
            
                65.80
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2018
             | 
            
                -2.00 / -2.70%
             |             
            
                74.00
             |           
            
                75.00
             |               
            
                72.00
             |                           
            
                72.00
             | 
            
                73.79
             |                     
            
                64.02
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2018
             | 
            
                -1.00 / -1.33%
             |             
            
                75.00
             |           
            
                75.50
             |               
            
                74.00
             |                           
            
                74.00
             | 
            
                74.78
             |                     
            
                65.80
             |                                 
            
                10,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2018
             | 
            
                +1.10 / +1.49%
             |             
            
                74.00
             |           
            
                75.00
             |               
            
                74.00
             |                           
            
                75.00
             | 
            
                74.63
             |                     
            
                66.69
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2018
             | 
            
                +0.60 / +0.82%
             |             
            
                73.30
             |           
            
                74.00
             |               
            
                73.30
             |                           
            
                73.90
             | 
            
                73.77
             |                     
            
                65.71
             |                                 
            
                7,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2018
             | 
            
                +0.30 / +0.41%
             |             
            
                73.00
             |           
            
                75.00
             |               
            
                73.00
             |                           
            
                73.30
             | 
            
                73.47
             |                     
            
                65.18
             |                                 
            
                2,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2018
             | 
            
                -6.60 / -8.29%
             |             
            
                79.00
             |           
            
                79.00
             |               
            
                73.00
             |                           
            
                73.00
             | 
            
                74.00
             |                     
            
                64.91
             |                                 
            
                1,241
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2018
             | 
            
                -0.40 / -0.50%
             |             
            
                79.90
             |           
            
                79.90
             |               
            
                75.00
             |                           
            
                79.60
             | 
            
                76.30
             |                     
            
                70.78
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2018
             | 
            
                +1.20 / +1.52%
             |             
            
                79.90
             |           
            
                80.00
             |               
            
                79.90
             |                           
            
                80.00
             | 
            
                79.97
             |                     
            
                71.14
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2018
             | 
            
                +0.80 / +1.03%
             |             
            
                78.00
             |           
            
                79.00
             |               
            
                78.00
             |                           
            
                78.80
             | 
            
                78.51
             |                     
            
                70.07
             |                                 
            
                14,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2018
             | 
            
                -0.20 / -0.26%
             |             
            
                78.80
             |           
            
                80.00
             |               
            
                70.40
             |                           
            
                78.00
             | 
            
                75.91
             |                     
            
                69.36
             |                                 
            
                41,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2018
             | 
            
                -0.50 / -0.64%
             |             
            
                78.80
             |           
            
                78.80
             |               
            
                76.00
             |                           
            
                78.20
             | 
            
                77.84
             |                     
            
                69.54
             |                                 
            
                9,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2018
             | 
            
                +0.80 / +1.03%
             |             
            
                79.00
             |           
            
                79.00
             |               
            
                78.50
             |                           
            
                78.70
             | 
            
                78.81
             |                     
            
                69.98
             |                                 
            
                10,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2018
             | 
            
                +1.90 / +2.50%
             |             
            
                77.60
             |           
            
                77.90
             |               
            
                76.00
             |                           
            
                77.90
             | 
            
                77.61
             |                     
            
                69.27
             |                                 
            
                9,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2018
             | 
            
                -0.30 / -0.39%
             |             
            
                76.90
             |           
            
                77.30
             |               
            
                76.00
             |                           
            
                76.00
             | 
            
                76.47
             |                     
            
                67.58
             |                                 
            
                9,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2018
             | 
            
                -0.70 / -0.91%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                76.30
             |                           
            
                76.30
             | 
            
                76.90
             |                     
            
                67.85
             |                                 
            
                9,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2018
             | 
            
                0.00 / 0.00%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                76.90
             |                           
            
                77.00
             | 
            
                76.98
             |                     
            
                68.47
             |                                 
            
                16,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2018
             | 
            
                0.00 / 0.00%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                77.00
             |                           
            
                77.00
             | 
            
                77.00
             |                     
            
                68.47
             |                                 
            
                7,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                77.00
             |           
            
                77.00
             |               
            
                76.00
             |                           
            
                77.00
             | 
            
                76.83
             |                     
            
                68.47
             |                                 
            
                7,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2018
             | 
            
                0.00 / 0.00%
             |             
            
                79.90
             |           
            
                80.00
             |               
            
                76.00
             |                           
            
                77.00
             | 
            
                78.20
             |                     
            
                68.47
             |                                 
            
                1,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2018
             | 
            
                -0.40 / -0.52%
             |             
            
                79.90
             |           
            
                79.90
             |               
            
                77.00
             |                           
            
                77.00
             | 
            
                77.60
             |                     
            
                68.47
             |                                 
            
                1,924
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2018
             | 
            
                -0.10 / -0.13%
             |             
            
                77.40
             |           
            
                77.40
             |               
            
                77.40
             |                           
            
                77.40
             | 
            
                77.40
             |                     
            
                68.83
             |                                 
            
                565
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2018
             | 
            
                -0.90 / -1.15%
             |             
            
                77.50
             |           
            
                77.50
             |               
            
                77.50
             |                           
            
                77.50
             | 
            
                77.50
             |                     
            
                68.91
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2018
             | 
            
                -0.20 / -0.25%
             |             
            
                78.60
             |           
            
                78.60
             |               
            
                78.00
             |                           
            
                78.40
             | 
            
                78.32
             |                     
            
                69.71
             |                                 
            
                10,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2018
             | 
            
                +0.10 / +0.13%
             |             
            
                78.00
             |           
            
                78.60
             |               
            
                78.00
             |                           
            
                78.60
             | 
            
                78.54
             |                     
            
                69.89
             |                                 
            
                13,006
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2018
             | 
            
                0.00 / 0.00%
             |             
            
                78.70
             |           
            
                78.80
             |               
            
                78.50
             |                           
            
                78.50
             | 
            
                78.71
             |                     
            
                69.80
             |                                 
            
                1,951
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2018
             | 
            
                -0.30 / -0.38%
             |             
            
                78.80
             |           
            
                78.80
             |               
            
                78.50
             |                           
            
                78.50
             | 
            
                78.57
             |                     
            
                69.80
             |                                 
            
                2,870
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2018
             | 
            
                -1.10 / -1.38%
             |             
            
                79.00
             |           
            
                79.00
             |               
            
                78.00
             |                           
            
                78.80
             | 
            
                78.81
             |                     
            
                70.07
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |