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            | 
                    Closing price on 9/26/2012
                 |  |  
    
        |           
                
                    | Open | 9.00 |  
                    | High | 9.10 |  
                    | Low | 9.00 |  
                    | Volume | 38,830 |  
                    | Split-adjusted Price | 4.62 |  
                
             | 
 |  PXS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 9/26/2012 | 0.00 / 0.00% | 9.00 | 9.10 | 9.00 | 9.00 | 9.00 | 4.62 | 38,830 |   |  
            | 9/25/2012 | 0.00 / 0.00% | 9.00 | 9.00 | 8.90 | 9.00 | 9.00 | 4.62 | 36,940 |   |  			
            | 9/24/2012 | -0.10 / -1.10% | 9.10 | 9.10 | 8.90 | 9.00 | 9.00 | 4.62 | 15,140 |   |  
            | 9/21/2012 | +0.10 / +1.11% | 9.00 | 9.10 | 9.00 | 9.10 | 9.10 | 4.67 | 27,450 |   |  			
            | 9/20/2012 | -0.10 / -1.10% | 8.90 | 9.00 | 8.80 | 9.00 | 9.00 | 4.62 | 120,920 |   |  
            | 9/19/2012 | +0.10 / +1.11% | 8.90 | 9.10 | 8.90 | 9.10 | 9.10 | 4.67 | 86,180 |   |  			
            | 9/18/2012 | -0.30 / -3.23% | 9.30 | 9.30 | 9.00 | 9.00 | 9.00 | 4.62 | 92,940 |   |  
            | 9/17/2012 | -0.10 / -1.06% | 9.30 | 9.40 | 9.30 | 9.30 | 9.30 | 4.78 | 129,690 |   |  			
            | 9/14/2012 | 0.00 / 0.00% | 9.50 | 9.70 | 9.40 | 9.40 | 9.40 | 4.83 | 303,140 |   |  
            | 9/13/2012 | +0.10 / +1.08% | 9.40 | 9.40 | 9.20 | 9.40 | 9.40 | 4.83 | 54,730 |   |  			
            | 9/12/2012 | +0.10 / +1.09% | 9.40 | 9.40 | 9.30 | 9.30 | 9.30 | 4.78 | 114,600 |   |  
            | 9/11/2012 | +0.10 / +1.10% | 9.20 | 9.20 | 9.10 | 9.20 | 9.20 | 4.72 | 99,820 |   |  			
            | 9/10/2012 | -0.40 / -4.21% | 9.50 | 9.50 | 9.10 | 9.10 | 9.10 | 4.67 | 238,720 |   |  
            | 9/7/2012 | +0.20 / +2.15% | 9.40 | 9.50 | 9.30 | 9.50 | 9.50 | 4.88 | 45,030 |   |  			
            | 9/6/2012 | 0.00 / 0.00% | 9.30 | 9.40 | 9.20 | 9.30 | 9.30 | 4.78 | 108,220 |   |  
            | 9/5/2012 | -0.20 / -2.11% | 9.40 | 9.50 | 9.30 | 9.30 | 9.30 | 4.78 | 82,360 |   |  			
            | 9/4/2012 | +0.20 / +2.15% | 9.30 | 9.60 | 9.30 | 9.50 | 9.50 | 4.88 | 106,600 |   |  
            | 8/31/2012 | -0.20 / -2.11% | 9.40 | 9.50 | 9.30 | 9.30 | 9.30 | 4.78 | 53,320 |   |  			
            | 8/30/2012 | 0.00 / 0.00% | 9.40 | 9.70 | 9.40 | 9.50 | 9.50 | 4.88 | 47,480 |   |  
            | 8/29/2012 | +0.40 / +4.40% | 9.40 | 9.50 | 9.20 | 9.50 | 9.50 | 4.88 | 71,660 |   |  			
            | 8/28/2012 | -0.20 / -2.15% | 9.40 | 9.40 | 8.90 | 9.10 | 9.10 | 4.67 | 176,940 |   |  
            | 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 |   |  |