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                    Closing price on 5/11/2020
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        |           
                
                    | Open | 46.70 |  
                    | High | 47.50 |  
                    | Low | 46.50 |  
                    | Volume | 394,460 |  
                    | Split-adjusted Price | 27.35 |  
                
             | 
 |  PTB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  			
            | 4/29/2020 | +0.30 / +0.69% | 43.40 | 43.70 | 42.10 | 43.70 | 43.36 | 25.16 | 124,990 |   |  
            | 4/28/2020 | -0.20 / -0.46% | 44.00 | 44.00 | 42.00 | 43.40 | 42.42 | 24.99 | 146,400 |   |  			
            | 4/27/2020 | +1.10 / +2.59% | 42.00 | 43.90 | 42.00 | 43.60 | 43.01 | 25.10 | 98,010 |   |  
            | 4/24/2020 | 0.00 / 0.00% | 43.50 | 43.50 | 41.00 | 42.50 | 41.83 | 24.47 | 480,150 |   |  			
            | 4/23/2020 | -0.90 / -2.07% | 43.50 | 45.00 | 42.30 | 42.50 | 42.94 | 24.47 | 274,780 |   |  
            | 4/22/2020 | -1.00 / -2.25% | 42.00 | 43.50 | 42.00 | 43.40 | 42.94 | 24.99 | 347,560 |   |  			
            | 4/21/2020 | -1.35 / -2.95% | 45.00 | 45.65 | 42.60 | 44.40 | 43.92 | 25.56 | 397,890 |   |  
            | 4/20/2020 | +2.05 / +4.69% | 43.80 | 46.50 | 43.80 | 45.75 | 45.61 | 26.34 | 330,070 |   |  			
            | 4/17/2020 | +0.35 / +0.81% | 43.35 | 44.00 | 43.35 | 43.70 | 43.52 | 25.16 | 274,710 |   |  
            | 4/16/2020 | -0.25 / -0.57% | 43.60 | 43.60 | 42.70 | 43.35 | 43.11 | 24.96 | 197,970 |   |  			
            | 4/15/2020 | +0.75 / +1.75% | 42.80 | 44.15 | 42.40 | 43.60 | 43.32 | 25.10 | 279,040 |   |  
            | 4/14/2020 | -0.55 / -1.27% | 43.40 | 43.60 | 42.00 | 42.85 | 42.51 | 24.09 | 172,560 |   |  			
            | 4/13/2020 | +0.60 / +1.40% | 42.80 | 44.00 | 42.00 | 43.40 | 43.02 | 24.40 | 243,910 |   |  
            | 4/10/2020 | -0.20 / -0.47% | 43.00 | 43.50 | 41.50 | 42.80 | 42.19 | 24.07 | 114,180 |   |  			
            | 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 |   |  |