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                    Closing price on 8/27/2012
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        |           
                
                    | Open | 9.40 |  
                    | High | 9.50 |  
                    | Low | 9.30 |  
                    | Volume | 108,740 |  
                    | Split-adjusted Price | 4.78 |  
                
             | 
 |  PXS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 8/27/2012 | -0.40 / -4.12% | 9.40 | 9.50 | 9.30 | 9.30 | 9.30 | 4.78 | 108,740 |   |  
            | 8/24/2012 | +0.20 / +2.11% | 9.10 | 9.80 | 9.10 | 9.70 | 9.70 | 4.98 | 118,660 |   |  			
            | 8/23/2012 | -0.40 / -4.04% | 9.50 | 9.50 | 9.50 | 9.50 | 9.50 | 4.88 | 113,070 |   |  
            | 8/22/2012 | -0.50 / -4.81% | 10.10 | 10.30 | 9.90 | 9.90 | 9.90 | 5.08 | 165,390 |   |  			
            | 8/21/2012 | -0.50 / -4.59% | 10.80 | 10.80 | 10.40 | 10.40 | 10.40 | 5.34 | 83,880 |   |  
            | 8/20/2012 | +0.10 / +0.93% | 10.80 | 11.00 | 10.70 | 10.90 | 10.90 | 5.60 | 85,260 |   |  			
            | 8/17/2012 | +0.10 / +0.93% | 10.70 | 10.90 | 10.50 | 10.80 | 10.80 | 5.55 | 66,440 |   |  
            | 8/16/2012 | +0.20 / +1.90% | 10.60 | 10.80 | 10.60 | 10.70 | 10.70 | 5.50 | 70,140 |   |  			
            | 8/15/2012 | -0.10 / -0.94% | 10.70 | 10.70 | 10.50 | 10.50 | 10.50 | 5.39 | 34,360 |   |  
            | 8/14/2012 | 0.00 / 0.00% | 10.70 | 10.70 | 10.50 | 10.60 | 10.60 | 5.44 | 49,140 |   |  			
            | 8/13/2012 | -0.10 / -0.93% | 10.50 | 10.80 | 10.50 | 10.60 | 10.60 | 5.44 | 42,720 |   |  
            | 8/10/2012 | 0.00 / 0.00% | 10.60 | 10.70 | 10.60 | 10.70 | 10.70 | 5.50 | 18,660 |   |  			
            | 8/9/2012 | +0.10 / +0.94% | 10.70 | 10.70 | 10.60 | 10.70 | 10.70 | 5.50 | 103,700 |   |  
            | 8/8/2012 | 0.00 / 0.00% | 10.70 | 10.70 | 10.50 | 10.60 | 10.60 | 5.44 | 21,070 |   |  			
            | 8/7/2012 | -0.20 / -1.85% | 10.80 | 10.80 | 10.50 | 10.60 | 10.60 | 5.44 | 18,280 |   |  
            | 8/6/2012 | +0.30 / +2.86% | 10.50 | 10.80 | 10.50 | 10.80 | 10.80 | 5.55 | 56,920 |   |  			
            | 8/3/2012 | +0.10 / +0.96% | 10.40 | 10.50 | 10.30 | 10.50 | 10.50 | 5.39 | 49,910 |   |  
            | 8/2/2012 | +0.10 / +0.97% | 10.30 | 10.50 | 10.30 | 10.40 | 10.40 | 5.34 | 40,920 |   |  			
            | 8/1/2012 | -0.20 / -1.90% | 10.60 | 10.60 | 10.30 | 10.30 | 10.30 | 5.29 | 35,610 |   |  
            | 7/31/2012 | -0.10 / -0.94% | 10.60 | 10.70 | 10.40 | 10.50 | 10.50 | 5.39 | 99,870 |   |  			
            | 7/30/2012 | +0.10 / +0.95% | 10.30 | 10.70 | 10.30 | 10.60 | 10.60 | 5.44 | 18,760 |   |  
            | 7/27/2012 | -0.30 / -2.78% | 11.00 | 11.00 | 10.50 | 10.50 | 10.50 | 5.39 | 51,830 |   |  			
            | 7/26/2012 | 0.00 / 0.00% | 10.80 | 10.90 | 10.70 | 10.80 | 10.80 | 5.55 | 75,780 |   |  
            | 7/25/2012 | -0.10 / -0.92% | 10.90 | 11.00 | 10.60 | 10.80 | 10.80 | 5.55 | 28,970 |   |  			
            | 7/24/2012 | -0.10 / -0.91% | 11.00 | 11.00 | 10.60 | 10.90 | 10.90 | 5.60 | 109,950 |   |  
            | 7/23/2012 | -0.20 / -1.79% | 11.20 | 11.20 | 10.80 | 11.00 | 11.00 | 5.65 | 81,720 |   |  			
            | 7/20/2012 | -0.10 / -0.88% | 11.30 | 11.60 | 11.20 | 11.20 | 11.20 | 5.75 | 142,620 |   |  
            | 7/19/2012 | +0.50 / +4.63% | 10.90 | 11.30 | 10.60 | 11.30 | 11.30 | 5.80 | 197,550 |   |  			
            | 7/18/2012 | -0.10 / -0.92% | 11.10 | 11.10 | 10.70 | 10.80 | 10.80 | 5.55 | 50,180 |   |  
            | 7/17/2012 | +0.40 / +3.81% | 10.70 | 11.00 | 10.60 | 10.90 | 10.90 | 5.60 | 47,770 |   |  |