| 
    
        
            | 
                    Closing price on 11/15/2017
                 |  |  
    
        |           
                
                    | Open | 23.00 |  
                    | High | 23.10 |  
                    | Low | 23.00 |  
                    | Volume | 73,010 |  
                    | Split-adjusted Price | 14.78 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/15/2017 | +0.10 / +0.43% | 23.00 | 23.10 | 23.00 | 23.10 | 23.05 | 14.78 | 73,010 |   |  
            | 11/14/2017 | 0.00 / 0.00% | 23.00 | 23.10 | 23.00 | 23.00 | 23.06 | 14.72 | 12,400 |   |  			
            | 11/13/2017 | +0.50 / +2.22% | 22.50 | 23.00 | 22.50 | 23.00 | 22.77 | 14.72 | 36,631 |   |  
            | 11/10/2017 | -0.40 / -1.75% | 22.20 | 23.10 | 22.20 | 22.50 | 22.77 | 14.40 | 3,900 |   |  			
            | 11/9/2017 | +0.90 / +4.09% | 22.60 | 22.90 | 22.60 | 22.90 | 22.65 | 14.65 | 1,410 |   |  
            | 11/8/2017 | -0.50 / -2.22% | 22.00 | 22.60 | 22.00 | 22.00 | 22.40 | 14.08 | 18,943 |   |  			
            | 11/7/2017 | +0.20 / +0.90% | 22.40 | 22.50 | 22.40 | 22.50 | 22.45 | 14.40 | 10,200 |   |  
            | 11/6/2017 | +0.40 / +1.83% | 22.90 | 22.90 | 21.80 | 22.30 | 22.18 | 14.27 | 22,210 |   |  			
            | 11/3/2017 | -0.10 / -0.45% | 21.90 | 22.00 | 21.00 | 21.90 | 21.43 | 14.01 | 10,210 |   |  
            | 11/2/2017 | -0.10 / -0.45% | 23.80 | 23.80 | 22.00 | 22.00 | 22.12 | 14.08 | 11,010 |   |  			
            | 11/1/2017 | +2.00 / +9.95% | 21.90 | 22.10 | 21.00 | 22.10 | 21.91 | 14.14 | 10,634 |   |  
            | 10/31/2017 | +0.50 / +2.55% | 19.90 | 21.50 | 19.90 | 20.10 | 20.70 | 12.86 | 21,918 |   |  			
            | 10/30/2017 | -1.80 / -8.41% | 22.90 | 22.90 | 19.60 | 19.60 | 19.85 | 12.54 | 3,300 |   |  
            | 10/27/2017 | +0.20 / +0.94% | 22.90 | 22.90 | 20.80 | 21.40 | 22.40 | 13.69 | 1,320 |   |  			
            | 10/26/2017 | -2.00 / -8.62% | 23.20 | 23.20 | 21.00 | 21.20 | 22.88 | 13.57 | 15,300 |   |  
            | 10/25/2017 | 0.00 / 0.00% | 23.20 | 23.20 | 23.20 | 23.20 | 23.20 | 14.85 | 10 |   |  			
            | 10/24/2017 | -0.60 / -2.52% | 23.30 | 23.30 | 22.20 | 23.20 | 22.59 | 14.85 | 28,799 |   |  
            | 10/23/2017 | -0.20 / -0.83% | 24.00 | 24.20 | 23.60 | 23.80 | 23.88 | 14.59 | 4,100 |   |  			
            | 10/20/2017 | -0.20 / -0.83% | 24.10 | 24.50 | 24.00 | 24.00 | 24.45 | 14.71 | 78,347 |   |  
            | 10/19/2017 | +0.40 / +1.68% | 24.40 | 24.40 | 23.70 | 24.20 | 24.00 | 14.84 | 15,910 |   |  			
            | 10/18/2017 | -0.70 / -2.86% | 24.50 | 24.50 | 23.80 | 23.80 | 23.96 | 14.59 | 10,867 |   |  
            | 10/17/2017 | +0.50 / +2.08% | 24.50 | 24.60 | 24.00 | 24.50 | 24.44 | 15.02 | 39,355 |   |  			
            | 10/16/2017 | +0.40 / +1.69% | 23.40 | 24.30 | 23.40 | 24.00 | 23.83 | 14.71 | 38,362 |   |  
            | 10/13/2017 | -0.70 / -2.88% | 23.90 | 24.10 | 23.10 | 23.60 | 23.49 | 14.47 | 9,686 |   |  			
            | 10/12/2017 | 0.00 / 0.00% | 24.10 | 24.30 | 24.10 | 24.30 | 24.20 | 14.90 | 1,377 |   |  
            | 10/11/2017 | -0.30 / -1.22% | 24.60 | 24.60 | 23.30 | 24.30 | 24.04 | 14.90 | 21,630 |   |  			
            | 10/10/2017 | +0.60 / +2.50% | 24.00 | 24.60 | 23.90 | 24.60 | 24.25 | 15.08 | 191,966 |   |  
            | 10/9/2017 | +0.40 / +1.69% | 23.70 | 24.00 | 23.00 | 24.00 | 23.80 | 14.71 | 220,010 |   |  			
            | 10/6/2017 | +0.10 / +0.43% | 23.10 | 23.60 | 23.10 | 23.60 | 23.42 | 14.47 | 51,815 |   |  
            | 10/5/2017 | 0.00 / 0.00% | 22.90 | 23.50 | 22.90 | 23.50 | 23.17 | 14.41 | 102,500 |   |  |