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                    Closing price on 11/18/2020
                 |  |  
    
        |           
                
                    | Open | 54.40 |  
                    | High | 54.50 |  
                    | Low | 54.00 |  
                    | Volume | 138,090 |  
                    | Split-adjusted Price | 32.43 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/18/2020 | -0.20 / -0.37% | 54.40 | 54.50 | 54.00 | 54.20 | 54.17 | 32.43 | 138,090 |   |  
            | 11/17/2020 | +0.80 / +1.49% | 54.00 | 54.40 | 53.30 | 54.40 | 53.78 | 32.55 | 144,680 |   |  			
            | 11/16/2020 | -0.90 / -1.65% | 54.50 | 54.90 | 53.60 | 53.60 | 53.94 | 32.07 | 287,560 |   |  
            | 11/13/2020 | +0.10 / +0.18% | 54.40 | 54.60 | 53.80 | 54.50 | 54.26 | 32.61 | 226,280 |   |  			
            | 11/12/2020 | +0.30 / +0.55% | 54.90 | 54.90 | 53.90 | 54.40 | 54.31 | 32.55 | 215,530 |   |  
            | 11/11/2020 | +0.60 / +1.12% | 53.50 | 54.80 | 53.50 | 54.10 | 54.20 | 32.37 | 367,050 |   |  			
            | 11/10/2020 | +0.10 / +0.19% | 54.50 | 54.60 | 53.30 | 53.50 | 53.66 | 32.01 | 218,470 |   |  
            | 11/9/2020 | +0.90 / +1.71% | 52.50 | 53.50 | 52.50 | 53.40 | 53.07 | 31.95 | 276,470 |   |  			
            | 11/6/2020 | -0.10 / -0.19% | 52.60 | 52.80 | 52.10 | 52.50 | 52.45 | 31.41 | 75,200 |   |  
            | 11/5/2020 | -0.70 / -1.31% | 53.30 | 53.40 | 52.50 | 52.60 | 52.93 | 31.47 | 103,370 |   |  			
            | 11/4/2020 | +0.90 / +1.72% | 53.40 | 53.40 | 52.60 | 53.30 | 53.00 | 31.89 | 134,630 |   |  
            | 11/3/2020 | +0.40 / +0.77% | 52.50 | 53.20 | 51.90 | 52.40 | 52.34 | 31.35 | 420,450 |   |  			
            | 11/2/2020 | +0.20 / +0.39% | 52.40 | 52.40 | 51.90 | 52.00 | 52.02 | 31.11 | 69,940 |   |  
            | 10/30/2020 | +0.20 / +0.39% | 51.60 | 52.50 | 51.10 | 51.80 | 51.55 | 30.99 | 66,830 |   |  			
            | 10/29/2020 | +0.10 / +0.19% | 50.60 | 52.30 | 50.60 | 51.60 | 51.49 | 30.87 | 87,840 |   |  
            | 10/28/2020 | -1.50 / -2.83% | 52.50 | 52.80 | 51.00 | 51.50 | 52.10 | 30.81 | 133,620 |   |  			
            | 10/27/2020 | +0.20 / +0.38% | 52.80 | 53.50 | 52.40 | 53.00 | 52.80 | 31.71 | 105,770 |   |  
            | 10/26/2020 | 0.00 / 0.00% | 53.40 | 54.00 | 52.80 | 52.80 | 53.37 | 31.59 | 168,890 |   |  			
            | 10/23/2020 | -1.30 / -2.40% | 54.00 | 54.20 | 52.70 | 52.80 | 53.19 | 31.59 | 365,460 |   |  
            | 10/22/2020 | +0.50 / +0.93% | 53.40 | 54.50 | 52.10 | 54.10 | 53.30 | 32.37 | 124,980 |   |  			
            | 10/21/2020 | -2.40 / -4.29% | 55.60 | 55.90 | 53.60 | 53.60 | 54.39 | 32.07 | 604,590 |   |  
            | 10/20/2020 | +0.10 / +0.18% | 55.90 | 56.00 | 55.40 | 56.00 | 55.71 | 33.50 | 123,030 |   |  			
            | 10/19/2020 | -1.10 / -1.93% | 57.20 | 57.20 | 55.50 | 55.90 | 56.25 | 33.44 | 261,560 |   |  
            | 10/16/2020 | +2.00 / +3.64% | 55.00 | 57.40 | 54.80 | 57.00 | 56.50 | 34.10 | 456,320 |   |  			
            | 10/15/2020 | -0.20 / -0.36% | 55.30 | 55.80 | 54.80 | 55.00 | 55.18 | 32.91 | 143,510 |   |  
            | 10/14/2020 | -0.50 / -0.90% | 55.70 | 56.20 | 55.10 | 55.20 | 55.47 | 33.02 | 154,110 |   |  			
            | 10/13/2020 | +0.20 / +0.36% | 55.50 | 56.40 | 55.50 | 55.70 | 55.99 | 33.32 | 263,290 |   |  
            | 10/12/2020 | -0.50 / -0.89% | 56.90 | 56.90 | 55.50 | 55.50 | 55.92 | 33.20 | 168,620 |   |  			
            | 10/9/2020 | -0.40 / -0.71% | 57.00 | 57.20 | 55.50 | 56.00 | 56.33 | 33.50 | 181,040 |   |  
            | 10/8/2020 | +0.20 / +0.36% | 56.20 | 56.90 | 56.00 | 56.40 | 56.22 | 33.74 | 136,810 |   |  |