| 
                 
                    Closing price on 3/8/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.80 | 
                 
                
                    | High | 
                    4.20 | 
                 
                
                    | Low | 
                    3.80 | 
                     
                
                    | Volume | 
                    497,600 | 
                                 
                
                    | Split-adjusted Price | 
                    4.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
WSS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/8/2017
             | 
            
                +0.30 / +7.69%
             |             
            
                3.80
             |           
            
                4.20
             |               
            
                3.80
             |                           
            
                4.20
             | 
            
                3.90
             |                     
            
                4.20
             |                                 
            
                497,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.91
             |                     
            
                3.90
             |                                 
            
                372,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                4.00
             |                     
            
                3.90
             |                                 
            
                191,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.98
             |                     
            
                4.00
             |                                 
            
                107,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.91
             |                     
            
                3.90
             |                                 
            
                102,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                24,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.99
             |                     
            
                3.90
             |                                 
            
                131,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                52,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                101,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                4.00
             |                     
            
                3.90
             |                                 
            
                89,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                28,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                102,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                115,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                119,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/16/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                3.98
             |                     
            
                3.90
             |                                 
            
                118,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                125,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                125,900
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2017
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                141,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/10/2017
             | 
            
                -0.10 / -2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.90
             |                     
            
                3.80
             |                                 
            
                113,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                116,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2017
             | 
            
                +0.10 / +2.63%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                133,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2017
             | 
            
                -0.20 / -5.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.90
             |                     
            
                3.80
             |                                 
            
                106,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.93
             |                     
            
                4.00
             |                                 
            
                120,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.99
             |                     
            
                4.00
             |                                 
            
                136,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2017
             | 
            
                +0.20 / +5.26%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                91,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.90
             |                     
            
                3.80
             |                                 
            
                93,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                3.92
             |                     
            
                3.80
             |                                 
            
                102,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2017
             | 
            
                -0.20 / -5.00%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                3.80
             | 
            
                4.00
             |                     
            
                3.80
             |                                 
            
                105,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/20/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                3.90
             |           
            
                4.00
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                3.90
             |                     
            
                4.00
             |                                 
            
                89,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                3.90
             |               
            
                3.80
             |                           
            
                3.90
             | 
            
                3.90
             |                     
            
                3.90
             |                                 
            
                160,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |