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                    Closing price on 6/5/2017
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        |           
                
                    | Open | 28.50 |  
                    | High | 28.90 |  
                    | Low | 28.25 |  
                    | Volume | 596,690 |  
                    | Split-adjusted Price | 13.58 |  
                
             | 
 |  NT2 Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/5/2017 | +0.30 / +1.05% | 28.50 | 28.90 | 28.25 | 28.85 | 28.67 | 13.58 | 596,690 |   |  
            | 6/2/2017 | -0.15 / -0.52% | 28.70 | 28.90 | 27.95 | 28.55 | 28.42 | 13.44 | 988,290 |   |  			
            | 6/1/2017 | +1.05 / +3.80% | 27.65 | 29.20 | 27.65 | 28.70 | 28.64 | 13.51 | 945,390 |   |  
            | 5/31/2017 | 0.00 / 0.00% | 27.65 | 27.70 | 27.60 | 27.65 | 27.64 | 13.02 | 669,580 |   |  			
            | 5/30/2017 | 0.00 / 0.00% | 27.70 | 27.75 | 27.60 | 27.65 | 27.66 | 13.02 | 437,750 |   |  
            | 5/29/2017 | +0.05 / +0.18% | 28.00 | 28.00 | 27.60 | 27.65 | 27.71 | 13.02 | 319,070 |   |  			
            | 5/26/2017 | -0.40 / -1.43% | 28.00 | 28.10 | 27.55 | 27.60 | 27.73 | 12.99 | 405,370 |   |  
            | 5/25/2017 | -0.40 / -1.41% | 28.40 | 28.50 | 28.00 | 28.00 | 28.22 | 13.18 | 712,530 |   |  			
            | 5/24/2017 | -1.45 / -4.86% | 28.40 | 28.50 | 28.30 | 28.40 | 28.40 | 13.37 | 354,860 |   |  
            | 5/23/2017 | +0.05 / +0.17% | 29.80 | 29.95 | 29.75 | 29.85 | 29.83 | 13.30 | 916,190 |   |  			
            | 5/22/2017 | -0.05 / -0.17% | 30.00 | 30.00 | 29.70 | 29.80 | 29.84 | 13.28 | 502,430 |   |  
            | 5/19/2017 | 0.00 / 0.00% | 30.30 | 30.30 | 29.80 | 29.85 | 29.87 | 13.30 | 335,160 |   |  			
            | 5/18/2017 | -0.10 / -0.33% | 29.95 | 30.40 | 29.85 | 29.85 | 30.00 | 13.30 | 428,930 |   |  
            | 5/17/2017 | -0.80 / -2.60% | 30.30 | 30.60 | 29.95 | 29.95 | 30.08 | 13.35 | 575,500 |   |  			
            | 5/16/2017 | -0.25 / -0.81% | 31.00 | 31.20 | 30.75 | 30.75 | 30.92 | 13.70 | 333,980 |   |  
            | 5/15/2017 | -0.70 / -2.21% | 31.50 | 31.60 | 30.90 | 31.00 | 31.17 | 13.81 | 518,840 |   |  			
            | 5/12/2017 | +0.15 / +0.48% | 31.55 | 31.80 | 31.50 | 31.70 | 31.66 | 14.12 | 687,420 |   |  
            | 5/11/2017 | +0.55 / +1.77% | 31.00 | 31.75 | 30.80 | 31.55 | 31.47 | 14.06 | 540,040 |   |  			
            | 5/10/2017 | +1.00 / +3.33% | 30.20 | 31.00 | 30.20 | 31.00 | 30.58 | 13.81 | 812,660 |   |  
            | 5/9/2017 | -0.10 / -0.33% | 30.20 | 30.25 | 29.90 | 30.00 | 30.02 | 13.37 | 255,040 |   |  			
            | 5/8/2017 | +1.20 / +4.15% | 29.10 | 30.20 | 29.10 | 30.10 | 29.78 | 13.41 | 613,300 |   |  
            | 5/5/2017 | -0.20 / -0.69% | 29.10 | 29.10 | 28.80 | 28.90 | 28.90 | 12.88 | 595,780 |   |  			
            | 5/4/2017 | -0.85 / -2.84% | 29.95 | 29.95 | 28.90 | 29.10 | 29.26 | 12.97 | 509,390 |   |  
            | 5/3/2017 | -0.05 / -0.17% | 30.10 | 30.10 | 29.80 | 29.95 | 29.98 | 13.35 | 249,720 |   |  			
            | 4/28/2017 | -0.50 / -1.64% | 30.30 | 30.30 | 29.90 | 30.00 | 30.02 | 13.37 | 396,590 |   |  
            | 4/27/2017 | +0.30 / +0.99% | 30.55 | 30.70 | 30.20 | 30.50 | 30.49 | 13.59 | 68,130 |   |  			
            | 4/26/2017 | -0.05 / -0.17% | 30.40 | 30.60 | 30.20 | 30.20 | 30.34 | 13.46 | 222,340 |   |  
            | 4/25/2017 | -0.10 / -0.33% | 30.25 | 30.50 | 30.25 | 30.25 | 30.27 | 13.48 | 53,260 |   |  			
            | 4/24/2017 | -0.25 / -0.82% | 30.60 | 30.60 | 30.00 | 30.35 | 30.37 | 13.52 | 32,530 |   |  
            | 4/21/2017 | +0.30 / +0.99% | 30.40 | 30.70 | 30.20 | 30.60 | 30.35 | 13.63 | 150,380 |   |  |