| 
    
        
            | 
                    Closing price on 6/12/2020
                 |  |  
    
        |           
                
                    | Open | 46.60 |  
                    | High | 49.30 |  
                    | Low | 46.50 |  
                    | Volume | 217,160 |  
                    | Split-adjusted Price | 28.15 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/12/2020 | -0.60 / -1.21% | 46.60 | 49.30 | 46.50 | 48.90 | 47.63 | 28.15 | 217,160 |   |  
            | 6/11/2020 | -3.70 / -6.95% | 52.80 | 53.10 | 49.50 | 49.50 | 51.28 | 28.50 | 453,410 |   |  			
            | 6/10/2020 | -0.50 / -0.93% | 53.70 | 53.70 | 51.30 | 53.20 | 52.82 | 30.63 | 209,200 |   |  
            | 6/9/2020 | +3.00 / +5.92% | 50.70 | 54.20 | 50.70 | 53.70 | 53.43 | 30.92 | 509,000 |   |  			
            | 6/8/2020 | +2.40 / +4.97% | 49.45 | 51.00 | 48.80 | 50.70 | 49.92 | 29.19 | 613,380 |   |  
            | 6/5/2020 | +1.05 / +2.22% | 47.00 | 48.40 | 46.85 | 48.30 | 47.65 | 27.81 | 189,760 |   |  			
            | 6/4/2020 | +0.55 / +1.18% | 47.00 | 47.35 | 46.85 | 47.25 | 47.14 | 27.20 | 120,120 |   |  
            | 6/3/2020 | +0.05 / +0.11% | 46.65 | 47.00 | 46.50 | 46.70 | 46.63 | 26.89 | 97,940 |   |  			
            | 6/2/2020 | -0.25 / -0.53% | 47.70 | 47.70 | 46.65 | 46.65 | 47.04 | 26.86 | 146,520 |   |  
            | 6/1/2020 | +0.40 / +0.86% | 46.85 | 47.00 | 46.40 | 46.90 | 46.69 | 27.00 | 169,670 |   |  			
            | 5/29/2020 | -0.50 / -1.06% | 46.60 | 47.00 | 46.35 | 46.50 | 46.52 | 26.77 | 72,060 |   |  
            | 5/28/2020 | -1.00 / -2.08% | 46.00 | 47.80 | 46.00 | 47.00 | 47.02 | 27.06 | 98,380 |   |  			
            | 5/27/2020 | -0.45 / -0.93% | 49.30 | 49.30 | 47.80 | 48.00 | 48.56 | 27.64 | 200,100 |   |  
            | 5/26/2020 | +1.55 / +3.30% | 47.10 | 48.45 | 47.00 | 48.45 | 47.74 | 27.89 | 266,740 |   |  			
            | 5/25/2020 | +0.60 / +1.30% | 46.50 | 47.30 | 45.90 | 46.90 | 46.63 | 27.00 | 226,010 |   |  
            | 5/22/2020 | -0.15 / -0.32% | 46.15 | 46.80 | 46.15 | 46.30 | 46.41 | 26.66 | 113,660 |   |  			
            | 5/21/2020 | +0.10 / +0.22% | 46.35 | 46.90 | 46.30 | 46.45 | 46.53 | 26.74 | 78,490 |   |  
            | 5/20/2020 | -0.55 / -1.17% | 46.05 | 46.70 | 46.05 | 46.35 | 46.27 | 26.69 | 120,250 |   |  			
            | 5/19/2020 | -0.10 / -0.21% | 47.50 | 47.50 | 46.15 | 46.90 | 46.55 | 27.00 | 221,910 |   |  
            | 5/18/2020 | +2.00 / +4.44% | 45.00 | 47.00 | 45.00 | 47.00 | 46.17 | 27.06 | 99,580 |   |  			
            | 5/15/2020 | -1.55 / -3.33% | 46.60 | 46.80 | 44.70 | 45.00 | 45.32 | 25.91 | 342,130 |   |  
            | 5/14/2020 | -1.25 / -2.62% | 47.30 | 47.50 | 46.00 | 46.55 | 46.65 | 26.80 | 257,890 |   |  			
            | 5/13/2020 | -0.60 / -1.24% | 47.90 | 48.90 | 47.70 | 47.80 | 48.26 | 27.52 | 162,920 |   |  
            | 5/12/2020 | +0.90 / +1.89% | 47.50 | 48.40 | 46.70 | 48.40 | 47.81 | 27.87 | 295,060 |   |  			
            | 5/11/2020 | +0.50 / +1.06% | 46.70 | 47.50 | 46.50 | 47.50 | 47.03 | 27.35 | 394,460 |   |  
            | 5/8/2020 | +0.50 / +1.08% | 46.50 | 47.00 | 46.00 | 47.00 | 46.71 | 27.06 | 263,920 |   |  			
            | 5/7/2020 | +0.45 / +0.98% | 46.20 | 46.50 | 45.60 | 46.50 | 46.14 | 26.77 | 300,970 |   |  
            | 5/6/2020 | +2.05 / +4.66% | 44.00 | 46.50 | 43.70 | 46.05 | 45.54 | 26.51 | 475,870 |   |  			
            | 5/5/2020 | +0.30 / +0.69% | 43.70 | 44.00 | 42.50 | 44.00 | 43.61 | 25.33 | 123,090 |   |  
            | 5/4/2020 | 0.00 / 0.00% | 43.70 | 43.70 | 42.70 | 43.70 | 43.41 | 25.16 | 144,050 |   |  |