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                    Closing price on 4/9/2020
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                    | Open | 41.80 |  
                    | High | 43.50 |  
                    | Low | 41.30 |  
                    | Volume | 241,730 |  
                    | Split-adjusted Price | 24.18 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/9/2020 | +1.10 / +2.63% | 41.80 | 43.50 | 41.30 | 43.00 | 42.36 | 24.18 | 241,730 |   |  
            | 4/8/2020 | -2.10 / -4.77% | 43.50 | 43.50 | 41.80 | 41.90 | 42.35 | 23.56 | 226,530 |   |  			
            | 4/7/2020 | +1.90 / +4.51% | 45.00 | 45.00 | 42.00 | 44.00 | 43.73 | 24.74 | 349,090 |   |  
            | 4/6/2020 | +2.75 / +6.99% | 42.00 | 42.10 | 41.00 | 42.10 | 41.99 | 23.67 | 171,270 |   |  			
            | 4/3/2020 | +2.55 / +6.93% | 38.70 | 39.35 | 38.00 | 39.35 | 39.17 | 22.13 | 307,780 |   |  
            | 4/1/2020 | +2.40 / +6.98% | 34.00 | 36.80 | 34.00 | 36.80 | 36.15 | 20.69 | 151,300 |   |  			
            | 3/31/2020 | +1.50 / +4.56% | 32.90 | 35.00 | 32.90 | 34.40 | 33.85 | 19.34 | 284,100 |   |  
            | 3/30/2020 | -2.10 / -6.00% | 32.55 | 33.10 | 32.55 | 32.90 | 32.68 | 18.50 | 525,250 |   |  			
            | 3/27/2020 | -1.20 / -3.31% | 36.30 | 36.30 | 34.30 | 35.00 | 35.31 | 19.68 | 285,270 |   |  
            | 3/26/2020 | -0.15 / -0.41% | 38.00 | 38.65 | 36.20 | 36.20 | 37.43 | 20.36 | 265,800 |   |  			
            | 3/25/2020 | +2.35 / +6.91% | 35.00 | 36.35 | 35.00 | 36.35 | 36.16 | 20.44 | 156,120 |   |  
            | 3/24/2020 | -0.80 / -2.30% | 32.55 | 35.50 | 32.40 | 34.00 | 32.82 | 19.12 | 930,990 |   |  			
            | 3/23/2020 | -2.60 / -6.95% | 34.80 | 34.90 | 34.80 | 34.80 | 34.80 | 19.57 | 298,470 |   |  
            | 3/20/2020 | -2.80 / -6.97% | 40.00 | 40.00 | 37.40 | 37.40 | 37.73 | 21.03 | 498,250 |   |  			
            | 3/19/2020 | -3.00 / -6.94% | 41.10 | 41.20 | 40.20 | 40.20 | 40.39 | 22.60 | 255,180 |   |  
            | 3/18/2020 | -0.80 / -1.82% | 45.50 | 45.50 | 42.80 | 43.20 | 43.46 | 24.29 | 243,370 |   |  			
            | 3/17/2020 | -0.85 / -1.90% | 41.80 | 44.00 | 41.80 | 44.00 | 43.20 | 24.74 | 155,940 |   |  
            | 3/16/2020 | -3.35 / -6.95% | 48.20 | 48.20 | 44.85 | 44.85 | 45.31 | 25.22 | 243,650 |   |  			
            | 3/13/2020 | -2.10 / -4.17% | 46.80 | 49.00 | 46.80 | 48.20 | 46.86 | 27.10 | 237,450 |   |  
            | 3/12/2020 | -3.70 / -6.85% | 53.00 | 53.00 | 50.30 | 50.30 | 50.42 | 28.28 | 143,310 |   |  			
            | 3/11/2020 | -4.00 / -6.90% | 58.00 | 58.80 | 54.00 | 54.00 | 54.67 | 30.36 | 181,730 |   |  
            | 3/10/2020 | +0.60 / +1.05% | 53.50 | 58.00 | 53.50 | 58.00 | 55.88 | 32.61 | 61,610 |   |  			
            | 3/9/2020 | -4.30 / -6.97% | 58.80 | 58.80 | 57.40 | 57.40 | 57.75 | 32.28 | 83,930 |   |  
            | 3/6/2020 | -1.30 / -2.06% | 63.00 | 63.00 | 61.60 | 61.70 | 62.15 | 34.69 | 66,570 |   |  			
            | 3/5/2020 | -0.20 / -0.32% | 63.20 | 63.30 | 62.60 | 63.00 | 62.88 | 35.43 | 23,440 |   |  
            | 3/4/2020 | -0.30 / -0.47% | 64.00 | 64.00 | 63.20 | 63.20 | 63.41 | 35.54 | 13,310 |   |  			
            | 3/3/2020 | -0.40 / -0.63% | 64.20 | 64.20 | 63.00 | 63.50 | 63.57 | 35.71 | 9,360 |   |  
            | 3/2/2020 | +0.90 / +1.43% | 63.00 | 63.90 | 62.50 | 63.90 | 62.85 | 35.93 | 9,610 |   |  			
            | 2/28/2020 | -1.00 / -1.56% | 63.00 | 64.40 | 63.00 | 63.00 | 63.65 | 35.43 | 29,630 |   |  
            | 2/27/2020 | 0.00 / 0.00% | 65.00 | 65.00 | 63.50 | 64.00 | 64.01 | 35.99 | 11,420 |   |  |