| 
                 
                    Closing price on 5/8/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.90 | 
                 
                
                    | High | 
                    4.10 | 
                 
                
                    | Low | 
                    3.90 | 
                     
                
                    | Volume | 
                    41,200 | 
                                 
                
                    | Split-adjusted Price | 
                    4.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
WSS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/8/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                3.91
             |                     
            
                4.10
             |                                 
            
                41,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.00
             |                     
            
                4.10
             |                                 
            
                20,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2017
             | 
            
                +0.10 / +2.50%
             |             
            
                3.90
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                4.10
             |                     
            
                4.10
             |                                 
            
                168,811
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.80
             |           
            
                4.10
             |               
            
                3.80
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                110,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2017
             | 
            
                -0.20 / -4.76%
             |             
            
                4.00
             |           
            
                4.10
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                54,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                4.20
             |                                 
            
                176,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2017
             | 
            
                +0.10 / +2.44%
             |             
            
                3.90
             |           
            
                4.20
             |               
            
                3.80
             |                           
            
                4.20
             | 
            
                4.10
             |                     
            
                4.20
             |                                 
            
                89,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                3.93
             |                     
            
                4.10
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2017
             | 
            
                -0.10 / -2.38%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                4.00
             |                     
            
                4.10
             |                                 
            
                44,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/21/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.11
             |                     
            
                4.20
             |                                 
            
                160,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2017
             | 
            
                0.00 / 0.00%
             |             
            
                3.90
             |           
            
                4.30
             |               
            
                3.90
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                4.20
             |                                 
            
                84,200
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2017
             | 
            
                -0.10 / -2.33%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.30
             |                     
            
                4.20
             |                                 
            
                99,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.20
             |                     
            
                4.30
             |                                 
            
                120,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2017
             | 
            
                +0.10 / +2.38%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                35,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/14/2017
             | 
            
                -0.10 / -2.33%
             |             
            
                4.00
             |           
            
                4.30
             |               
            
                3.90
             |                           
            
                4.20
             | 
            
                4.30
             |                     
            
                4.20
             |                                 
            
                107,300
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.20
             |                     
            
                4.30
             |                                 
            
                101,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2017
             | 
            
                -0.10 / -2.27%
             |             
            
                4.30
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.29
             |                     
            
                4.30
             |                                 
            
                112,900
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.80
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.40
             |                                 
            
                78,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2017
             | 
            
                +0.10 / +2.33%
             |             
            
                4.30
             |           
            
                4.50
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.43
             |                     
            
                4.40
             |                                 
            
                112,511
             |            
            
                 
             |                                       
         
    
        
            | 
                4/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.30
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.24
             |                     
            
                4.30
             |                                 
            
                5,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.29
             |                     
            
                4.30
             |                                 
            
                89,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2017
             | 
            
                +0.20 / +4.88%
             |             
            
                4.10
             |           
            
                4.40
             |               
            
                4.10
             |                           
            
                4.30
             | 
            
                4.24
             |                     
            
                4.30
             |                                 
            
                244,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.10
             | 
            
                4.00
             |                     
            
                4.10
             |                                 
            
                43,111
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2017
             | 
            
                +0.20 / +5.13%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                4.10
             | 
            
                3.99
             |                     
            
                4.10
             |                                 
            
                47,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2017
             | 
            
                -0.10 / -2.50%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                3.90
             |                           
            
                3.90
             | 
            
                4.00
             |                     
            
                3.90
             |                                 
            
                58,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2017
             | 
            
                -0.20 / -4.76%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.00
             | 
            
                4.01
             |                     
            
                4.00
             |                                 
            
                121,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2017
             | 
            
                0.00 / 0.00%
             |             
            
                4.10
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.07
             |                     
            
                4.20
             |                                 
            
                100,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2017
             | 
            
                +0.20 / +5.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                4.00
             |                           
            
                4.20
             | 
            
                4.00
             |                     
            
                4.20
             |                                 
            
                116,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2017
             | 
            
                +0.10 / +2.56%
             |             
            
                4.00
             |           
            
                4.00
             |               
            
                3.90
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                66,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |