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                    Closing price on 8/25/2015
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                    | Open | 49.50 |  
                    | High | 49.50 |  
                    | Low | 48.00 |  
                    | Volume | 7,020 |  
                    | Split-adjusted Price | 8.80 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/25/2015 | +0.30 / +0.63% | 49.50 | 49.50 | 48.00 | 48.30 | 48.15 | 8.80 | 7,020 |   |  
            | 8/24/2015 | -0.30 / -0.62% | 49.70 | 49.70 | 45.00 | 48.00 | 46.91 | 8.74 | 8,740 |   |  			
            | 8/21/2015 | -1.60 / -3.21% | 49.00 | 50.00 | 48.30 | 48.30 | 48.46 | 8.80 | 7,120 |   |  
            | 8/20/2015 | -0.10 / -0.20% | 50.00 | 50.00 | 49.10 | 49.90 | 50.00 | 9.09 | 360 |   |  			
            | 8/19/2015 | 0.00 / 0.00% | 49.50 | 50.00 | 49.50 | 50.00 | 49.75 | 9.11 | 2,010 |   |  
            | 8/18/2015 | -0.50 / -0.99% | 50.00 | 50.00 | 49.30 | 50.00 | 49.64 | 9.11 | 2,800 |   |  			
            | 8/17/2015 | +0.50 / +1.00% | 50.00 | 51.00 | 49.00 | 50.50 | 49.03 | 9.20 | 3,500 |   |  
            | 8/14/2015 | +0.10 / +0.20% | 50.50 | 50.50 | 49.70 | 50.00 | 49.88 | 9.11 | 20,550 |   |  			
            | 8/13/2015 | -0.10 / -0.20% | 50.00 | 50.00 | 49.00 | 49.90 | 49.27 | 9.09 | 42,280 |   |  
            | 8/12/2015 | -1.00 / -1.96% | 50.50 | 51.00 | 50.00 | 50.00 | 50.51 | 9.11 | 3,940 |   |  			
            | 8/11/2015 | 0.00 / 0.00% | 51.00 | 51.00 | 50.00 | 51.00 | 50.97 | 9.29 | 14,440 |   |  
            | 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 |   |  |