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                    Closing price on 6/15/2012
                 |  |  
    
        |           
                
                    | Open | 11.40 |  
                    | High | 11.60 |  
                    | Low | 11.30 |  
                    | Volume | 80,250 |  
                    | Split-adjusted Price | 5.91 |  
                
             | 
 |  PXS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/15/2012 | +0.30 / +2.68% | 11.40 | 11.60 | 11.30 | 11.50 | 11.50 | 5.91 | 80,250 |   |  
            | 6/14/2012 | -0.20 / -1.75% | 11.40 | 11.40 | 11.20 | 11.20 | 11.20 | 5.75 | 121,570 |   |  			
            | 6/13/2012 | 0.00 / 0.00% | 11.50 | 11.50 | 11.20 | 11.40 | 11.40 | 5.85 | 77,340 |   |  
            | 6/12/2012 | -0.30 / -2.56% | 11.50 | 11.70 | 11.30 | 11.40 | 11.40 | 5.85 | 97,530 |   |  			
            | 6/11/2012 | +0.10 / +0.86% | 11.60 | 11.80 | 11.60 | 11.70 | 11.70 | 6.01 | 86,430 |   |  
            | 6/8/2012 | -0.10 / -0.85% | 12.00 | 12.00 | 11.60 | 11.60 | 11.60 | 5.96 | 314,020 |   |  			
            | 6/7/2012 | +0.40 / +3.54% | 11.30 | 11.80 | 11.30 | 11.70 | 11.70 | 6.01 | 300,260 |   |  
            | 6/6/2012 | +0.20 / +1.80% | 11.10 | 11.40 | 11.00 | 11.30 | 11.30 | 5.80 | 88,120 |   |  			
            | 6/5/2012 | +0.30 / +2.78% | 10.80 | 11.10 | 10.80 | 11.10 | 11.10 | 5.70 | 175,820 |   |  
            | 6/4/2012 | -0.40 / -3.57% | 11.00 | 11.10 | 10.80 | 10.80 | 10.80 | 5.55 | 194,970 |   |  			
            | 6/1/2012 | -0.20 / -1.75% | 11.60 | 11.60 | 11.10 | 11.20 | 11.20 | 5.75 | 66,560 |   |  
            | 5/31/2012 | -0.20 / -1.72% | 11.50 | 11.50 | 11.20 | 11.40 | 11.40 | 5.85 | 145,170 |   |  			
            | 5/30/2012 | +0.10 / +0.87% | 11.60 | 11.70 | 11.50 | 11.60 | 11.60 | 5.96 | 35,360 |   |  
            | 5/29/2012 | -0.30 / -2.54% | 11.60 | 11.60 | 11.30 | 11.50 | 11.50 | 5.91 | 116,940 |   |  			
            | 5/28/2012 | +0.20 / +1.72% | 12.00 | 12.00 | 11.50 | 11.80 | 11.80 | 6.06 | 117,630 |   |  
            | 5/25/2012 | +0.50 / +4.50% | 11.60 | 11.60 | 11.50 | 11.60 | 11.60 | 5.96 | 127,620 |   |  			
            | 5/24/2012 | -0.40 / -3.48% | 11.20 | 11.50 | 11.00 | 11.10 | 11.10 | 5.70 | 237,480 |   |  
            | 5/23/2012 | -0.60 / -4.96% | 11.80 | 11.80 | 11.50 | 11.50 | 11.50 | 5.91 | 193,210 |   |  			
            | 5/22/2012 | +0.40 / +3.42% | 11.80 | 12.20 | 11.70 | 12.10 | 12.10 | 6.21 | 297,800 |   |  
            | 5/21/2012 | +0.50 / +4.46% | 11.50 | 11.70 | 11.40 | 11.70 | 11.70 | 6.01 | 139,920 |   |  			
            | 5/18/2012 | -0.30 / -2.61% | 11.40 | 11.50 | 11.00 | 11.20 | 11.20 | 5.75 | 304,310 |   |  
            | 5/17/2012 | -0.10 / -0.86% | 11.90 | 11.90 | 11.50 | 11.50 | 11.50 | 5.91 | 295,500 |   |  			
            | 5/16/2012 | -0.10 / -0.85% | 11.50 | 11.90 | 11.30 | 11.60 | 11.60 | 5.96 | 399,670 |   |  
            | 5/15/2012 | -0.60 / -4.88% | 12.10 | 12.30 | 11.70 | 11.70 | 11.70 | 6.01 | 500,790 |   |  			
            | 5/14/2012 | -0.60 / -4.65% | 12.60 | 12.70 | 12.30 | 12.30 | 12.30 | 6.32 | 616,900 |   |  
            | 5/11/2012 | -0.10 / -0.77% | 13.00 | 13.10 | 12.70 | 12.90 | 12.90 | 6.63 | 688,260 |   |  			
            | 5/10/2012 | -0.10 / -0.76% | 13.50 | 13.50 | 12.70 | 13.00 | 13.00 | 6.68 | 1,090,870 |   |  
            | 5/9/2012 | -0.50 / -3.68% | 13.30 | 13.60 | 13.10 | 13.10 | 13.10 | 6.73 | 775,730 |   |  			
            | 5/8/2012 | +0.60 / +4.62% | 13.60 | 13.60 | 13.10 | 13.60 | 13.60 | 6.98 | 1,286,080 |   |  
            | 5/7/2012 | +0.60 / +4.84% | 13.00 | 13.00 | 12.90 | 13.00 | 13.00 | 6.68 | 754,540 |   |  |