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                    Closing price on 3/12/2021
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                    | Open | 79.50 |  
                    | High | 80.30 |  
                    | Low | 79.30 |  
                    | Volume | 275,500 |  
                    | Split-adjusted Price | 47.86 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/12/2021 | +0.40 / +0.50% | 79.50 | 80.30 | 79.30 | 80.00 | 79.80 | 47.86 | 275,500 |   |  
            | 3/11/2021 | -0.10 / -0.13% | 79.70 | 81.50 | 79.00 | 79.60 | 79.64 | 47.62 | 192,800 |   |  			
            | 3/10/2021 | -0.30 / -0.38% | 80.00 | 80.10 | 78.50 | 79.70 | 79.49 | 47.68 | 48,100 |   |  
            | 3/9/2021 | +0.90 / +1.14% | 79.10 | 81.50 | 78.80 | 80.00 | 79.10 | 47.86 | 149,200 |   |  			
            | 3/8/2021 | +3.30 / +4.35% | 76.50 | 81.00 | 75.00 | 79.10 | 77.88 | 47.32 | 661,700 |   |  
            | 3/5/2021 | +1.80 / +2.43% | 74.00 | 76.00 | 73.20 | 75.80 | 74.00 | 45.35 | 107,400 |   |  			
            | 3/4/2021 | -1.00 / -1.33% | 75.00 | 76.50 | 74.00 | 74.00 | 75.78 | 44.27 | 243,400 |   |  
            | 3/3/2021 | +0.40 / +0.54% | 74.00 | 75.50 | 73.80 | 75.00 | 74.72 | 44.87 | 88,200 |   |  			
            | 3/2/2021 | -1.10 / -1.45% | 76.50 | 76.50 | 74.00 | 74.60 | 74.83 | 44.63 | 142,000 |   |  
            | 3/1/2021 | -0.10 / -0.13% | 77.00 | 77.00 | 75.20 | 75.70 | 75.63 | 45.29 | 162,700 |   |  			
            | 2/26/2021 | -0.70 / -0.92% | 74.20 | 76.60 | 74.20 | 75.80 | 76.14 | 45.35 | 165,700 |   |  
            | 2/25/2021 | +1.10 / +1.46% | 77.80 | 77.80 | 74.50 | 76.50 | 76.19 | 45.77 | 128,000 |   |  			
            | 2/24/2021 | +2.30 / +3.15% | 73.10 | 77.20 | 73.10 | 75.40 | 73.10 | 45.11 | 323,400 |   |  
            | 2/23/2021 | +1.80 / +2.52% | 72.00 | 73.10 | 70.90 | 73.10 | 72.27 | 43.73 | 293,600 |   |  			
            | 2/22/2021 | -1.10 / -1.52% | 72.00 | 72.40 | 71.00 | 71.30 | 71.90 | 42.66 | 149,300 |   |  
            | 2/19/2021 | +2.40 / +3.43% | 69.30 | 72.50 | 69.30 | 72.40 | 71.20 | 43.32 | 235,700 |   |  			
            | 2/18/2021 | -0.90 / -1.27% | 71.00 | 71.00 | 69.00 | 70.00 | 70.01 | 41.88 | 142,700 |   |  
            | 2/17/2021 | +2.70 / +3.96% | 68.60 | 72.00 | 68.60 | 70.90 | 69.97 | 42.42 | 239,100 |   |  			
            | 2/9/2021 | +1.70 / +2.56% | 66.50 | 68.30 | 65.90 | 68.20 | 67.33 | 40.80 | 266,500 |   |  
            | 2/8/2021 | +0.40 / +0.61% | 67.00 | 67.20 | 64.30 | 66.50 | 66.53 | 39.79 | 327,000 |   |  			
            | 2/5/2021 | +0.10 / +0.15% | 66.00 | 67.00 | 65.00 | 66.10 | 65.96 | 39.55 | 245,100 |   |  
            | 2/4/2021 | +0.50 / +0.76% | 66.00 | 66.80 | 65.50 | 66.00 | 66.23 | 39.49 | 83,400 |   |  			
            | 2/3/2021 | +0.50 / +0.77% | 65.00 | 66.20 | 64.00 | 65.50 | 65.48 | 39.19 | 122,100 |   |  
            | 2/2/2021 | +2.40 / +3.83% | 62.00 | 65.20 | 62.00 | 65.00 | 63.95 | 38.89 | 240,000 |   |  			
            | 2/1/2021 | -1.40 / -2.19% | 64.00 | 65.00 | 61.50 | 62.60 | 62.76 | 37.45 | 176,400 |   |  
            | 1/29/2021 | +1.20 / +1.91% | 59.00 | 65.00 | 59.00 | 64.00 | 62.99 | 38.29 | 231,100 |   |  			
            | 1/28/2021 | -4.70 / -6.96% | 63.30 | 65.00 | 62.80 | 62.80 | 62.80 | 37.57 | 353,000 |   |  
            | 1/27/2021 | -0.80 / -1.17% | 67.00 | 68.40 | 66.50 | 67.50 | 68.30 | 40.38 | 323,400 |   |  			
            | 1/26/2021 | 0.00 / 0.00% | 68.00 | 69.70 | 66.60 | 68.30 | 68.05 | 40.86 | 205,600 |   |  
            | 1/25/2021 | -0.20 / -0.29% | 68.50 | 68.80 | 67.80 | 68.30 | 68.30 | 40.86 | 129,600 |   |  |