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            | 
                    Closing price on 2/24/2017
                 |  |  
    
        |           
                
                    | Open | 105.80 |  
                    | High | 105.80 |  
                    | Low | 103.40 |  
                    | Volume | 2,000 |  
                    | Split-adjusted Price | 84.89 |  
                
             | 
 |  MAS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/24/2017 | -0.90 / -0.86% | 105.80 | 105.80 | 103.40 | 103.60 | 104.16 | 84.89 | 2,000 |   |  
            | 2/23/2017 | +1.10 / +1.06% | 103.50 | 105.00 | 103.50 | 104.50 | 103.81 | 85.63 | 7,218 |   |  			
            | 2/22/2017 | +0.10 / +0.10% | 103.50 | 103.70 | 103.40 | 103.40 | 103.61 | 84.73 | 7,240 |   |  
            | 2/21/2017 | -0.20 / -0.19% | 103.60 | 104.00 | 103.20 | 103.30 | 103.43 | 84.65 | 11,200 |   |  			
            | 2/20/2017 | +0.20 / +0.19% | 103.30 | 103.50 | 103.00 | 103.50 | 103.07 | 84.81 | 4,500 |   |  
            | 2/17/2017 | +0.30 / +0.29% | 104.00 | 104.00 | 103.30 | 103.30 | 103.74 | 84.65 | 6,140 |   |  			
            | 2/16/2017 | 0.00 / 0.00% | 103.00 | 103.90 | 103.00 | 103.00 | 103.24 | 84.40 | 4,410 |   |  
            | 2/15/2017 | -0.90 / -0.87% | 104.00 | 104.00 | 103.00 | 103.00 | 103.56 | 84.40 | 19,470 |   |  			
            | 2/14/2017 | +0.90 / +0.87% | 103.10 | 104.00 | 102.00 | 103.90 | 102.96 | 85.14 | 4,700 |   |  
            | 2/13/2017 | +1.00 / +0.98% | 102.20 | 105.00 | 102.20 | 103.00 | 103.05 | 84.40 | 3,300 |   |  			
            | 2/10/2017 | -3.00 / -2.86% | 104.00 | 104.50 | 102.00 | 102.00 | 102.36 | 83.58 | 4,350 |   |  
            | 2/9/2017 | -3.00 / -2.78% | 108.00 | 108.00 | 105.00 | 105.00 | 106.34 | 86.04 | 4,920 |   |  			
            | 2/8/2017 | -1.20 / -1.10% | 110.00 | 112.00 | 108.00 | 108.00 | 109.89 | 88.50 | 12,320 |   |  
            | 2/7/2017 | -31.80 / -22.55% | 105.00 | 109.20 | 105.00 | 109.20 | 107.97 | 89.48 | 35,010 |   |  			
            | 2/6/2017 | -4.00 / -2.76% | 145.10 | 145.10 | 140.20 | 141.00 | 142.99 | 81.45 | 24,978 |   |  
            | 2/3/2017 | -2.50 / -1.69% | 147.50 | 147.50 | 145.00 | 145.00 | 145.33 | 83.76 | 16,408 |   |  			
            | 2/2/2017 | +3.50 / +2.43% | 145.00 | 150.00 | 144.00 | 147.50 | 145.72 | 85.21 | 8,810 |   |  
            | 1/25/2017 | +1.00 / +0.70% | 144.50 | 144.50 | 143.50 | 144.00 | 143.90 | 83.19 | 10,610 |   |  			
            | 1/24/2017 | +1.10 / +0.78% | 142.00 | 144.90 | 141.00 | 143.00 | 141.49 | 82.61 | 14,918 |   |  
            | 1/23/2017 | +2.80 / +2.01% | 142.00 | 142.50 | 139.10 | 141.90 | 142.18 | 81.97 | 4,230 |   |  			
            | 1/20/2017 | 0.00 / 0.00% | 139.10 | 142.00 | 139.00 | 139.10 | 139.14 | 80.35 | 7,500 |   |  
            | 1/19/2017 | -1.60 / -1.14% | 139.50 | 139.50 | 139.00 | 139.10 | 139.12 | 80.35 | 8,030 |   |  			
            | 1/18/2017 | +1.70 / +1.22% | 139.00 | 145.00 | 138.60 | 140.70 | 139.75 | 81.28 | 20,310 |   |  
            | 1/17/2017 | 0.00 / 0.00% | 141.00 | 141.00 | 139.00 | 139.00 | 139.07 | 80.30 | 9,420 |   |  			
            | 1/16/2017 | 0.00 / 0.00% | 139.00 | 141.00 | 139.00 | 139.00 | 139.51 | 80.30 | 6,010 |   |  
            | 1/13/2017 | 0.00 / 0.00% | 139.00 | 141.50 | 139.00 | 139.00 | 139.00 | 80.30 | 18,200 |   |  			
            | 1/12/2017 | -2.00 / -1.42% | 142.00 | 142.00 | 139.00 | 139.00 | 139.76 | 80.30 | 11,600 |   |  
            | 1/11/2017 | +2.00 / +1.44% | 141.00 | 141.00 | 139.00 | 141.00 | 141.00 | 81.45 | 160 |   |  			
            | 1/10/2017 | -1.00 / -0.71% | 139.00 | 139.60 | 139.00 | 139.00 | 139.17 | 80.30 | 5,610 |   |  
            | 1/9/2017 | -2.00 / -1.41% | 142.00 | 142.00 | 139.00 | 140.00 | 140.75 | 80.87 | 36,400 |   |  |