| 
                 
                    Closing price on 11/29/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.50 | 
                 
                
                    | High | 
                    3.50 | 
                 
                
                    | Low | 
                    3.00 | 
                     
                
                    | Volume | 
                    632,300 | 
                                 
                
                    | Split-adjusted Price | 
                    3.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PV2 Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/29/2013
             | 
            
                -0.20 / -6.06%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.15
             |                     
            
                3.10
             |                                 
            
                632,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/28/2013
             | 
            
                +0.30 / +10.00%
             |             
            
                3.00
             |           
            
                3.30
             |               
            
                3.00
             |                           
            
                3.30
             | 
            
                3.23
             |                     
            
                3.30
             |                                 
            
                1,710,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/27/2013
             | 
            
                +0.10 / +3.45%
             |             
            
                2.90
             |           
            
                3.00
             |               
            
                2.80
             |                           
            
                3.00
             | 
            
                2.90
             |                     
            
                3.00
             |                                 
            
                474,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2013
             | 
            
                +0.20 / +7.41%
             |             
            
                2.70
             |           
            
                2.90
             |               
            
                2.60
             |                           
            
                2.90
             | 
            
                2.78
             |                     
            
                2.90
             |                                 
            
                631,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.70
             |           
            
                2.90
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.73
             |                     
            
                2.70
             |                                 
            
                806,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2013
             | 
            
                +0.10 / +3.85%
             |             
            
                2.60
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.70
             | 
            
                2.61
             |                     
            
                2.70
             |                                 
            
                344,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.80
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.74
             |                     
            
                2.60
             |                                 
            
                1,840,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2013
             | 
            
                +0.10 / +4.00%
             |             
            
                2.40
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.51
             |                     
            
                2.60
             |                                 
            
                293,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2013
             | 
            
                -0.10 / -3.85%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.51
             |                     
            
                2.50
             |                                 
            
                203,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2013
             | 
            
                +0.20 / +8.33%
             |             
            
                2.40
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.60
             | 
            
                2.54
             |                     
            
                2.60
             |                                 
            
                848,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/15/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.35
             |                     
            
                2.40
             |                                 
            
                377,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/14/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.30
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.38
             |                     
            
                2.40
             |                                 
            
                302,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2013
             | 
            
                -0.20 / -7.69%
             |             
            
                2.50
             |           
            
                2.50
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.42
             |                     
            
                2.40
             |                                 
            
                397,610
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2013
             | 
            
                +0.10 / +4.00%
             |             
            
                2.50
             |           
            
                2.70
             |               
            
                2.50
             |                           
            
                2.60
             | 
            
                2.56
             |                     
            
                2.60
             |                                 
            
                874,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2013
             | 
            
                +0.10 / +4.17%
             |             
            
                2.30
             |           
            
                2.50
             |               
            
                2.30
             |                           
            
                2.50
             | 
            
                2.39
             |                     
            
                2.50
             |                                 
            
                611,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/8/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.31
             |                     
            
                2.40
             |                                 
            
                354,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/7/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.46
             |                     
            
                2.40
             |                                 
            
                420,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2013
             | 
            
                +0.20 / +9.09%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                2.40
             |                                 
            
                1,069,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2013
             | 
            
                +0.20 / +10.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.19
             |                     
            
                2.20
             |                                 
            
                646,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2013
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                282,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.93
             |                     
            
                1.90
             |                                 
            
                68,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/31/2013
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                102,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.96
             |                     
            
                2.00
             |                                 
            
                83,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.98
             |                     
            
                2.00
             |                                 
            
                17,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                133,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/25/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.98
             |                     
            
                2.00
             |                                 
            
                62,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.01
             |                     
            
                2.00
             |                                 
            
                231,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2013
             | 
            
                +0.10 / +5.26%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.99
             |                     
            
                2.00
             |                                 
            
                422,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2013
             | 
            
                -0.20 / -9.52%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                2.00
             |                     
            
                1.90
             |                                 
            
                185,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2013
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.12
             |                     
            
                2.10
             |                                 
            
                149,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |