| 
                 
                    Closing price on 1/31/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.70 | 
                 
                
                    | High | 
                    1.70 | 
                 
                
                    | Low | 
                    1.60 | 
                     
                
                    | Volume | 
                    431,600 | 
                                 
                
                    | Split-adjusted Price | 
                    1.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DST Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/31/2019
             | 
            
                +0.10 / +6.25%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.70
             | 
            
                1.70
             |                     
            
                1.70
             |                                 
            
                431,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.60
             |           
            
                1.70
             |               
            
                1.50
             |                           
            
                1.60
             | 
            
                1.61
             |                     
            
                1.60
             |                                 
            
                119,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2019
             | 
            
                -0.10 / -5.88%
             |             
            
                1.70
             |           
            
                1.70
             |               
            
                1.60
             |                           
            
                1.60
             | 
            
                1.61
             |                     
            
                1.60
             |                                 
            
                349,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2019
             | 
            
                -0.10 / -5.56%
             |             
            
                1.80
             |           
            
                1.80
             |               
            
                1.70
             |                           
            
                1.70
             | 
            
                1.71
             |                     
            
                1.70
             |                                 
            
                403,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.80
             |                           
            
                1.80
             | 
            
                1.82
             |                     
            
                1.80
             |                                 
            
                120,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.80
             |           
            
                1.90
             |               
            
                1.70
             |                           
            
                1.80
             | 
            
                1.80
             |                     
            
                1.80
             |                                 
            
                340,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2019
             | 
            
                -0.10 / -5.26%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.80
             |                           
            
                1.80
             | 
            
                1.83
             |                     
            
                1.80
             |                                 
            
                111,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.89
             |                     
            
                1.90
             |                                 
            
                209,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2019
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                652,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.90
             |                     
            
                2.00
             |                                 
            
                171,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2019
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.91
             |                     
            
                2.00
             |                                 
            
                81,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.96
             |                     
            
                1.90
             |                                 
            
                194,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2019
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.97
             |                     
            
                1.90
             |                                 
            
                225,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2019
             | 
            
                -0.10 / -4.76%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                94,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2019
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                87,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2019
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                198,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                400,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                276,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2019
             | 
            
                +0.10 / +5.00%
             |             
            
                1.90
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                278,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.92
             |                     
            
                2.00
             |                                 
            
                388,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                276,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2019
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.03
             |                     
            
                2.00
             |                                 
            
                385,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                126,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2018
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.20
             | 
            
                2.10
             |                     
            
                2.20
             |                                 
            
                324,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                272,200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                983,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.15
             |                     
            
                2.20
             |                                 
            
                261,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2018
             | 
            
                +0.10 / +4.76%
             |             
            
                2.10
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.16
             |                     
            
                2.20
             |                                 
            
                352,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2018
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                703,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.19
             |                     
            
                2.20
             |                                 
            
                157,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |