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                    Closing price on 8/10/2015
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        |           
                
                    | Open | 50.00 |  
                    | High | 51.00 |  
                    | Low | 50.00 |  
                    | Volume | 17,130 |  
                    | Split-adjusted Price | 9.29 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/10/2015 | +1.00 / +2.00% | 50.00 | 51.00 | 50.00 | 51.00 | 50.50 | 9.29 | 17,130 |   |  
            | 8/7/2015 | -1.00 / -1.96% | 50.50 | 50.50 | 50.00 | 50.00 | 50.29 | 9.11 | 3,500 |   |  			
            | 8/6/2015 | 0.00 / 0.00% | 50.50 | 51.00 | 50.50 | 51.00 | 50.55 | 9.29 | 3,620 |   |  
            | 8/5/2015 | 0.00 / 0.00% | 51.00 | 51.00 | 50.50 | 51.00 | 50.56 | 9.29 | 8,920 |   |  			
            | 8/4/2015 | +0.50 / +0.99% | 50.50 | 51.00 | 50.00 | 51.00 | 50.58 | 9.29 | 1,720 |   |  
            | 8/3/2015 | +0.50 / +1.00% | 49.80 | 50.50 | 49.80 | 50.50 | 50.06 | 9.20 | 40,150 |   |  			
            | 7/31/2015 | 0.00 / 0.00% | 51.00 | 51.00 | 50.00 | 50.00 | 50.00 | 9.11 | 10,320 |   |  
            | 7/30/2015 | 0.00 / 0.00% | 50.00 | 50.50 | 49.20 | 50.00 | 49.95 | 9.11 | 19,620 |   |  			
            | 7/29/2015 | -1.50 / -2.91% | 51.00 | 51.50 | 50.00 | 50.00 | 50.36 | 9.11 | 15,290 |   |  
            | 7/28/2015 | -0.50 / -0.96% | 51.50 | 52.00 | 51.00 | 51.50 | 51.36 | 9.38 | 15,790 |   |  			
            | 7/27/2015 | +0.50 / +0.97% | 52.00 | 52.50 | 51.50 | 52.00 | 51.74 | 9.47 | 25,570 |   |  
            | 7/24/2015 | 0.00 / 0.00% | 51.00 | 52.00 | 50.00 | 51.50 | 51.76 | 9.38 | 26,950 |   |  			
            | 7/23/2015 | 0.00 / 0.00% | 52.00 | 53.00 | 51.00 | 51.50 | 51.41 | 9.38 | 5,660 |   |  
            | 7/22/2015 | 0.00 / 0.00% | 51.50 | 53.00 | 51.50 | 51.50 | 51.93 | 9.38 | 104,360 |   |  			
            | 7/21/2015 | +2.10 / +4.25% | 50.00 | 52.50 | 50.00 | 51.50 | 51.26 | 9.38 | 84,880 |   |  
            | 7/20/2015 | +0.40 / +0.82% | 49.00 | 49.40 | 49.00 | 49.40 | 49.20 | 9.00 | 9,700 |   |  			
            | 7/17/2015 | -0.40 / -0.81% | 49.40 | 49.40 | 48.80 | 49.00 | 49.12 | 8.93 | 38,840 |   |  
            | 7/16/2015 | -0.40 / -0.80% | 49.00 | 49.40 | 49.00 | 49.40 | 49.06 | 9.00 | 19,630 |   |  			
            | 7/15/2015 | +0.80 / +1.63% | 48.70 | 49.90 | 48.60 | 49.80 | 48.77 | 9.07 | 13,780 |   |  
            | 7/14/2015 | 0.00 / 0.00% | 49.50 | 49.50 | 48.70 | 49.00 | 48.98 | 8.93 | 16,740 |   |  			
            | 7/13/2015 | +0.70 / +1.45% | 48.20 | 49.00 | 48.20 | 49.00 | 48.61 | 8.93 | 22,650 |   |  
            | 7/10/2015 | -0.40 / -0.82% | 48.60 | 48.60 | 48.20 | 48.30 | 48.34 | 8.80 | 5,070 |   |  			
            | 7/9/2015 | -0.60 / -1.22% | 49.00 | 49.00 | 48.00 | 48.70 | 48.29 | 8.87 | 24,560 |   |  
            | 7/8/2015 | +0.10 / +0.20% | 49.10 | 49.70 | 48.50 | 49.30 | 48.81 | 8.98 | 3,360 |   |  			
            | 7/7/2015 | +0.10 / +0.20% | 49.40 | 49.40 | 49.20 | 49.20 | 49.36 | 8.96 | 2,350 |   |  
            | 7/6/2015 | -0.70 / -1.41% | 49.80 | 50.50 | 49.10 | 49.10 | 49.75 | 8.94 | 3,430 |   |  			
            | 7/3/2015 | 0.00 / 0.00% | 50.00 | 50.00 | 49.50 | 49.80 | 50.00 | 9.07 | 1,580 |   |  
            | 7/2/2015 | +0.90 / +1.84% | 48.60 | 49.80 | 48.50 | 49.80 | 49.22 | 9.07 | 1,280 |   |  			
            | 7/1/2015 | -1.00 / -2.00% | 48.30 | 49.00 | 48.30 | 48.90 | 48.51 | 8.91 | 11,420 |   |  
            | 6/30/2015 | +0.20 / +0.40% | 49.10 | 50.00 | 48.00 | 49.90 | 48.49 | 9.09 | 25,780 |   |  |