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                    Closing price on 8/7/2017
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        |           
                
                    | Open | 88.90 |  
                    | High | 89.20 |  
                    | Low | 88.60 |  
                    | Volume | 9,796 |  
                    | Split-adjusted Price | 75.30 |  
                
             | 
 |  MAS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/7/2017 | -0.30 / -0.34% | 88.90 | 89.20 | 88.60 | 88.70 | 88.91 | 75.30 | 9,796 |   |  
            | 8/4/2017 | 0.00 / 0.00% | 89.00 | 89.00 | 89.00 | 89.00 | 89.00 | 75.56 | 3,870 |   |  			
            | 8/3/2017 | +0.40 / +0.45% | 88.90 | 89.40 | 88.60 | 89.00 | 89.06 | 75.56 | 8,400 |   |  
            | 8/2/2017 | -1.40 / -1.56% | 89.00 | 89.00 | 88.60 | 88.60 | 88.68 | 75.22 | 3,823 |   |  			
            | 8/1/2017 | -1.00 / -1.10% | 90.90 | 90.90 | 88.80 | 90.00 | 89.75 | 76.40 | 6,268 |   |  
            | 7/31/2017 | -1.00 / -1.09% | 92.00 | 92.00 | 90.00 | 91.00 | 91.06 | 77.25 | 3,815 |   |  			
            | 7/28/2017 | 0.00 / 0.00% | 92.00 | 92.00 | 92.00 | 92.00 | 92.00 | 78.10 | 2,175 |   |  
            | 7/27/2017 | +4.00 / +4.55% | 88.00 | 92.00 | 88.00 | 92.00 | 89.18 | 78.10 | 9,650 |   |  			
            | 7/26/2017 | -6.00 / -6.38% | 94.50 | 94.50 | 85.00 | 88.00 | 87.29 | 74.71 | 36,078 |   |  
            | 7/25/2017 | -0.50 / -0.53% | 94.00 | 95.00 | 94.00 | 94.00 | 94.61 | 79.80 | 3,370 |   |  			
            | 7/24/2017 | -1.20 / -1.25% | 95.00 | 95.00 | 94.50 | 94.50 | 94.56 | 80.22 | 2,523 |   |  
            | 7/21/2017 | +0.20 / +0.21% | 96.00 | 96.00 | 95.50 | 95.70 | 95.83 | 81.24 | 3,760 |   |  			
            | 7/20/2017 | -0.50 / -0.52% | 95.60 | 95.60 | 95.50 | 95.50 | 95.53 | 81.07 | 800 |   |  
            | 7/19/2017 | +1.10 / +1.16% | 95.00 | 96.00 | 95.00 | 96.00 | 95.95 | 81.50 | 4,710 |   |  			
            | 7/18/2017 | 0.00 / 0.00% | 96.00 | 96.00 | 94.90 | 94.90 | 95.31 | 80.56 | 14,110 |   |  
            | 7/17/2017 | -0.10 / -0.11% | 94.10 | 95.00 | 94.00 | 94.90 | 94.58 | 80.56 | 1,235 |   |  			
            | 7/14/2017 | -1.00 / -1.04% | 96.00 | 96.50 | 95.00 | 95.00 | 95.26 | 80.65 | 3,820 |   |  
            | 7/13/2017 | -1.00 / -1.03% | 94.10 | 96.00 | 94.10 | 96.00 | 95.90 | 81.50 | 2,094 |   |  			
            | 7/12/2017 | +1.60 / +1.68% | 96.00 | 97.00 | 95.40 | 97.00 | 95.96 | 82.35 | 7,780 |   |  
            | 7/11/2017 | +0.40 / +0.42% | 95.00 | 95.60 | 95.00 | 95.40 | 95.15 | 80.99 | 5,310 |   |  			
            | 7/10/2017 | -0.40 / -0.42% | 95.50 | 95.50 | 95.00 | 95.00 | 95.27 | 80.65 | 4,535 |   |  
            | 7/7/2017 | -0.10 / -0.10% | 95.50 | 95.50 | 95.40 | 95.40 | 95.44 | 80.99 | 3,370 |   |  			
            | 7/6/2017 | -0.50 / -0.52% | 96.00 | 96.00 | 95.00 | 95.50 | 95.31 | 81.07 | 6,017 |   |  
            | 7/5/2017 | +0.50 / +0.52% | 96.00 | 96.00 | 96.00 | 96.00 | 96.00 | 81.50 | 4,532 |   |  			
            | 7/4/2017 | +0.20 / +0.21% | 96.00 | 96.00 | 95.30 | 95.50 | 95.51 | 81.07 | 9,000 |   |  
            | 7/3/2017 | +0.20 / +0.21% | 96.00 | 96.00 | 94.50 | 95.30 | 95.47 | 80.90 | 14,337 |   |  			
            | 6/30/2017 | -0.10 / -0.11% | 95.00 | 95.20 | 95.00 | 95.10 | 95.03 | 80.73 | 11,496 |   |  
            | 6/29/2017 | +0.20 / +0.21% | 95.00 | 95.40 | 95.00 | 95.20 | 95.08 | 80.82 | 3,430 |   |  			
            | 6/28/2017 | -0.80 / -0.84% | 95.80 | 95.80 | 88.00 | 95.00 | 94.34 | 80.65 | 5,808 |   |  
            | 6/27/2017 | 0.00 / 0.00% | 96.00 | 96.00 | 95.70 | 95.80 | 95.81 | 81.33 | 6,904 |   |  |