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                    Closing price on 6/28/2018
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                    | Open | 31.80 |  
                    | High | 31.80 |  
                    | Low | 31.80 |  
                    | Volume | 0 |  
                    | Split-adjusted Price | 20.90 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/28/2018 | 0.00 / 0.00% | 31.80 | 31.80 | 31.80 | 31.80 | 31.80 | 20.90 | 0 |   |  
            | 6/27/2018 | 0.00 / 0.00% | 31.80 | 31.80 | 31.80 | 31.80 | 31.80 | 20.90 | 0 |   |  			
            | 6/26/2018 | -0.20 / -0.63% | 31.80 | 31.80 | 31.80 | 31.80 | 31.80 | 20.90 | 100 |   |  
            | 6/25/2018 | 0.00 / 0.00% | 32.00 | 32.00 | 32.00 | 32.00 | 32.00 | 21.03 | 500 |   |  			
            | 6/22/2018 | +1.30 / +4.23% | 30.40 | 33.50 | 30.00 | 32.00 | 32.30 | 21.03 | 188,600 |   |  
            | 6/21/2018 | -3.40 / -9.97% | 31.00 | 31.70 | 30.70 | 30.70 | 30.82 | 20.17 | 1,900 |   |  			
            | 6/20/2018 | +3.10 / +10.00% | 34.10 | 34.10 | 34.10 | 34.10 | 34.10 | 22.41 | 100 |   |  
            | 6/19/2018 | -1.50 / -4.62% | 31.30 | 32.40 | 29.60 | 31.00 | 30.66 | 20.37 | 15,500 |   |  			
            | 6/18/2018 | -0.10 / -0.31% | 30.40 | 32.50 | 30.40 | 32.50 | 30.75 | 21.36 | 600 |   |  
            | 6/15/2018 | +2.00 / +6.54% | 32.60 | 32.60 | 32.60 | 32.60 | 32.60 | 21.42 | 100 |   |  			
            | 6/14/2018 | -0.40 / -1.29% | 30.40 | 34.00 | 30.40 | 30.60 | 30.52 | 19.58 | 7,900 |   |  
            | 6/13/2018 | 0.00 / 0.00% | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 19.84 | 0 |   |  			
            | 6/12/2018 | 0.00 / 0.00% | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 19.84 | 0 |   |  
            | 6/11/2018 | -0.60 / -1.90% | 31.60 | 34.70 | 31.00 | 31.00 | 31.48 | 19.84 | 900 |   |  			
            | 6/8/2018 | -1.40 / -4.24% | 31.60 | 31.60 | 31.60 | 31.60 | 31.60 | 20.22 | 100 |   |  
            | 6/7/2018 | +2.00 / +6.45% | 31.00 | 33.00 | 31.00 | 33.00 | 31.10 | 21.12 | 2,100 |   |  			
            | 6/6/2018 | -0.50 / -1.59% | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 19.84 | 24,300 |   |  
            | 6/5/2018 | -0.50 / -1.56% | 31.90 | 31.90 | 30.80 | 31.50 | 31.02 | 20.16 | 37,900 |   |  			
            | 6/4/2018 | -0.20 / -0.62% | 32.20 | 32.20 | 32.00 | 32.00 | 32.17 | 20.48 | 600 |   |  
            | 6/1/2018 | +1.40 / +4.55% | 32.20 | 32.20 | 30.60 | 32.20 | 30.69 | 20.60 | 21,200 |   |  			
            | 5/31/2018 | -1.60 / -4.94% | 32.30 | 33.00 | 30.10 | 30.80 | 31.15 | 19.71 | 2,200 |   |  
            | 5/30/2018 | -0.10 / -0.31% | 32.40 | 32.40 | 32.40 | 32.40 | 32.40 | 20.73 | 300 |   |  			
            | 5/29/2018 | +1.20 / +3.83% | 31.50 | 32.50 | 31.50 | 32.50 | 31.64 | 20.80 | 1,100 |   |  
            | 5/28/2018 | +0.40 / +1.29% | 30.40 | 31.40 | 29.00 | 31.30 | 30.15 | 20.03 | 10,100 |   |  			
            | 5/25/2018 | 0.00 / 0.00% | 29.60 | 30.90 | 29.60 | 30.90 | 29.63 | 19.77 | 4,100 |   |  
            | 5/24/2018 | 0.00 / 0.00% | 30.90 | 30.90 | 30.90 | 30.90 | 30.90 | 19.77 | 0 |   |  			
            | 5/23/2018 | +0.90 / +3.00% | 30.00 | 30.90 | 30.00 | 30.90 | 30.01 | 19.77 | 9,200 |   |  
            | 5/22/2018 | -1.50 / -4.76% | 30.00 | 30.90 | 30.00 | 30.00 | 30.02 | 19.20 | 8,300 |   |  			
            | 5/21/2018 | +0.50 / +1.61% | 31.50 | 31.50 | 31.50 | 31.50 | 31.50 | 20.16 | 100 |   |  
            | 5/18/2018 | -0.50 / -1.59% | 31.40 | 31.50 | 30.20 | 31.00 | 31.38 | 19.84 | 1,700 |   |  |