| 
                 
                    Closing price on 9/11/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    12.50 | 
                 
                
                    | High | 
                    12.50 | 
                 
                
                    | Low | 
                    12.50 | 
                     
                
                    | Volume | 
                    1,190 | 
                                 
                
                    | Split-adjusted Price | 
                    12.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.50
             |                     
            
                12.50
             |                                 
            
                1,190
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2019
             | 
            
                -0.80 / -6.02%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                13.20
             |                     
            
                12.50
             |                                 
            
                190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                13.30
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.30
             |           
            
                13.30
             |               
            
                13.30
             |                           
            
                13.30
             | 
            
                13.30
             |                     
            
                13.30
             |                                 
            
                30
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2019
             | 
            
                +0.50 / +3.91%
             |             
            
                13.65
             |           
            
                13.65
             |               
            
                12.90
             |                           
            
                13.30
             | 
            
                13.38
             |                     
            
                13.30
             |                                 
            
                120
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2019
             | 
            
                +0.15 / +1.19%
             |             
            
                12.65
             |           
            
                12.80
             |               
            
                12.65
             |                           
            
                12.80
             | 
            
                12.73
             |                     
            
                12.80
             |                                 
            
                560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2019
             | 
            
                -0.65 / -4.89%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.50
             |                           
            
                12.65
             | 
            
                12.50
             |                     
            
                12.65
             |                                 
            
                1,920
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2019
             | 
            
                +0.80 / +6.40%
             |             
            
                12.70
             |           
            
                13.30
             |               
            
                12.50
             |                           
            
                13.30
             | 
            
                12.75
             |                     
            
                13.30
             |                                 
            
                5,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2019
             | 
            
                -0.05 / -0.40%
             |             
            
                12.40
             |           
            
                12.70
             |               
            
                11.70
             |                           
            
                12.50
             | 
            
                12.00
             |                     
            
                12.50
             |                                 
            
                3,250
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2019
             | 
            
                -0.15 / -1.18%
             |             
            
                12.65
             |           
            
                12.65
             |               
            
                12.55
             |                           
            
                12.55
             | 
            
                12.55
             |                     
            
                12.55
             |                                 
            
                4,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                11.85
             |           
            
                12.70
             |               
            
                11.85
             |                           
            
                12.70
             | 
            
                12.42
             |                     
            
                12.70
             |                                 
            
                6,280
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2019
             | 
            
                -0.15 / -1.17%
             |             
            
                12.85
             |           
            
                12.85
             |               
            
                12.35
             |                           
            
                12.70
             | 
            
                12.52
             |                     
            
                12.70
             |                                 
            
                6,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2019
             | 
            
                -0.05 / -0.39%
             |             
            
                12.85
             |           
            
                12.85
             |               
            
                12.85
             |                           
            
                12.85
             | 
            
                12.85
             |                     
            
                12.85
             |                                 
            
                140
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2019
             | 
            
                -0.05 / -0.39%
             |             
            
                12.90
             |           
            
                12.90
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                12.90
             |                     
            
                12.90
             |                                 
            
                170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2019
             | 
            
                +0.45 / +3.60%
             |             
            
                11.80
             |           
            
                13.00
             |               
            
                11.80
             |                           
            
                12.95
             | 
            
                12.37
             |                     
            
                12.95
             |                                 
            
                970
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2019
             | 
            
                -0.50 / -3.85%
             |             
            
                12.50
             |           
            
                12.55
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.51
             |                     
            
                12.50
             |                                 
            
                360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2019
             | 
            
                -0.20 / -1.52%
             |             
            
                12.80
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                13.00
             | 
            
                12.71
             |                     
            
                13.00
             |                                 
            
                11,720
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                13.20
             |                           
            
                13.20
             | 
            
                13.20
             |                     
            
                13.20
             |                                 
            
                220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.20
             |           
            
                13.20
             |               
            
                12.85
             |                           
            
                13.20
             | 
            
                13.11
             |                     
            
                13.20
             |                                 
            
                170
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2019
             | 
            
                +0.20 / +1.54%
             |             
            
                13.20
             |           
            
                13.30
             |               
            
                12.60
             |                           
            
                13.20
             | 
            
                13.25
             |                     
            
                13.20
             |                                 
            
                31,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2019
             | 
            
                -0.90 / -6.47%
             |             
            
                13.00
             |           
            
                13.05
             |               
            
                12.95
             |                           
            
                13.00
             | 
            
                13.02
             |                     
            
                13.00
             |                                 
            
                11,210
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2019
             | 
            
                -0.10 / -0.71%
             |             
            
                13.15
             |           
            
                14.50
             |               
            
                13.15
             |                           
            
                13.90
             | 
            
                13.74
             |                     
            
                13.90
             |                                 
            
                1,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2019
             | 
            
                -0.35 / -2.44%
             |             
            
                14.50
             |           
            
                14.50
             |               
            
                13.35
             |                           
            
                14.00
             | 
            
                13.81
             |                     
            
                14.00
             |                                 
            
                2,680
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2019
             | 
            
                +0.75 / +5.51%
             |             
            
                13.50
             |           
            
                14.55
             |               
            
                13.30
             |                           
            
                14.35
             | 
            
                13.74
             |                     
            
                14.35
             |                                 
            
                28,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2019
             | 
            
                +0.40 / +3.03%
             |             
            
                13.00
             |           
            
                13.70
             |               
            
                13.00
             |                           
            
                13.60
             | 
            
                13.36
             |                     
            
                13.60
             |                                 
            
                37,590
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2019
             | 
            
                +0.15 / +1.15%
             |             
            
                12.95
             |           
            
                13.20
             |               
            
                12.95
             |                           
            
                13.20
             | 
            
                13.08
             |                     
            
                13.20
             |                                 
            
                1,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2019
             | 
            
                +0.05 / +0.38%
             |             
            
                12.95
             |           
            
                13.20
             |               
            
                12.55
             |                           
            
                13.05
             | 
            
                12.74
             |                     
            
                13.05
             |                                 
            
                4,710
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.40
             |           
            
                13.40
             |               
            
                12.55
             |                           
            
                13.00
             | 
            
                13.09
             |                     
            
                13.00
             |                                 
            
                270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                13.00
             | 
            
                12.85
             |                     
            
                13.00
             |                                 
            
                2,490
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2019
             | 
            
                -0.40 / -2.99%
             |             
            
                13.10
             |           
            
                13.40
             |               
            
                12.50
             |                           
            
                13.00
             | 
            
                12.88
             |                     
            
                13.00
             |                                 
            
                10,870
             |  
            
                 
             |                                                              
             
    
         
    
    
 |