| 
                 
                    Closing price on 6/19/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    13.50 | 
                 
                
                    | High | 
                    13.50 | 
                 
                
                    | Low | 
                    12.65 | 
                     
                
                    | Volume | 
                    7,660 | 
                                 
                
                    | Split-adjusted Price | 
                    13.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/19/2019
             | 
            
                -0.10 / -0.74%
             |             
            
                13.50
             |           
            
                13.50
             |               
            
                12.65
             |                           
            
                13.50
             | 
            
                12.66
             |                     
            
                13.50
             |                                 
            
                7,660
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2019
             | 
            
                -0.15 / -1.09%
             |             
            
                12.80
             |           
            
                13.60
             |               
            
                12.80
             |                           
            
                13.60
             | 
            
                12.83
             |                     
            
                13.60
             |                                 
            
                2,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                14.10
             |           
            
                14.10
             |               
            
                13.75
             |                           
            
                13.75
             | 
            
                13.79
             |                     
            
                13.75
             |                                 
            
                2,610
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2019
             | 
            
                -0.15 / -1.08%
             |             
            
                13.75
             |           
            
                13.75
             |               
            
                13.75
             |                           
            
                13.75
             | 
            
                13.75
             |                     
            
                13.75
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2019
             | 
            
                -0.30 / -2.11%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                13.90
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2019
             | 
            
                -0.10 / -0.70%
             |             
            
                14.20
             |           
            
                14.20
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                14.20
             |                                 
            
                2,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                14.30
             |           
            
                14.30
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                14.30
             |                                 
            
                470
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2019
             | 
            
                +0.50 / +3.62%
             |             
            
                14.35
             |           
            
                14.35
             |               
            
                13.00
             |                           
            
                14.30
             | 
            
                14.00
             |                     
            
                14.30
             |                                 
            
                5,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2019
             | 
            
                -0.10 / -0.72%
             |             
            
                13.20
             |           
            
                13.80
             |               
            
                13.15
             |                           
            
                13.80
             | 
            
                13.33
             |                     
            
                13.80
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                13.90
             |           
            
                13.90
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                13.90
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2019
             | 
            
                -0.10 / -0.71%
             |             
            
                13.50
             |           
            
                13.90
             |               
            
                13.30
             |                           
            
                13.90
             | 
            
                13.67
             |                     
            
                13.90
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.05
             |                           
            
                14.00
             | 
            
                13.76
             |                     
            
                14.00
             |                                 
            
                120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                14.00
             |                           
            
                14.00
             | 
            
                14.00
             |                     
            
                14.00
             |                                 
            
                1,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2019
             | 
            
                +0.20 / +1.45%
             |             
            
                13.80
             |           
            
                14.10
             |               
            
                13.80
             |                           
            
                14.00
             | 
            
                13.95
             |                     
            
                14.00
             |                                 
            
                9,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2019
             | 
            
                +0.90 / +6.98%
             |             
            
                13.60
             |           
            
                13.80
             |               
            
                13.20
             |                           
            
                13.80
             | 
            
                13.43
             |                     
            
                13.80
             |                                 
            
                44,160
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2019
             | 
            
                -0.90 / -6.52%
             |             
            
                13.80
             |           
            
                13.80
             |               
            
                12.90
             |                           
            
                12.90
             | 
            
                13.54
             |                     
            
                12.90
             |                                 
            
                24,590
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2019
             | 
            
                -0.30 / -2.13%
             |             
            
                14.00
             |           
            
                14.00
             |               
            
                13.15
             |                           
            
                13.80
             | 
            
                13.29
             |                     
            
                13.80
             |                                 
            
                34,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2019
             | 
            
                -0.15 / -1.05%
             |             
            
                13.30
             |           
            
                14.65
             |               
            
                13.30
             |                           
            
                14.10
             | 
            
                13.64
             |                     
            
                14.10
             |                                 
            
                4,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2019
             | 
            
                -1.05 / -6.86%
             |             
            
                14.95
             |           
            
                15.45
             |               
            
                14.25
             |                           
            
                14.25
             | 
            
                14.42
             |                     
            
                14.25
             |                                 
            
                27,120
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2019
             | 
            
                -1.15 / -6.99%
             |             
            
                15.85
             |           
            
                15.85
             |               
            
                15.30
             |                           
            
                15.30
             | 
            
                15.37
             |                     
            
                15.30
             |                                 
            
                19,520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2019
             | 
            
                +0.85 / +5.45%
             |             
            
                15.60
             |           
            
                16.45
             |               
            
                15.20
             |                           
            
                16.45
             | 
            
                15.84
             |                     
            
                16.45
             |                                 
            
                2,020
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2019
             | 
            
                -0.05 / -0.32%
             |             
            
                15.25
             |           
            
                16.65
             |               
            
                15.25
             |                           
            
                15.60
             | 
            
                15.69
             |                     
            
                15.60
             |                                 
            
                80
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2019
             | 
            
                -1.00 / -6.01%
             |             
            
                15.95
             |           
            
                15.95
             |               
            
                15.65
             |                           
            
                15.65
             | 
            
                15.80
             |                     
            
                15.65
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2019
             | 
            
                +0.45 / +2.78%
             |             
            
                16.15
             |           
            
                16.70
             |               
            
                16.10
             |                           
            
                16.65
             | 
            
                16.40
             |                     
            
                16.65
             |                                 
            
                530
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2019
             | 
            
                -0.10 / -0.61%
             |             
            
                16.20
             |           
            
                16.20
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                16.20
             |                                 
            
                110
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2019
             | 
            
                +0.10 / +0.62%
             |             
            
                16.30
             |           
            
                16.30
             |               
            
                16.30
             |                           
            
                16.30
             | 
            
                16.30
             |                     
            
                16.30
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2019
             | 
            
                -0.05 / -0.31%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.20
             |                           
            
                16.20
             | 
            
                16.20
             |                     
            
                16.20
             |                                 
            
                20
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.30
             |               
            
                16.00
             |                           
            
                16.25
             | 
            
                16.14
             |                     
            
                16.25
             |                                 
            
                630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2019
             | 
            
                +0.25 / +1.56%
             |             
            
                16.00
             |           
            
                16.25
             |               
            
                16.00
             |                           
            
                16.25
             | 
            
                16.13
             |                     
            
                16.25
             |                                 
            
                40
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2019
             | 
            
                +0.50 / +3.23%
             |             
            
                14.55
             |           
            
                16.00
             |               
            
                14.55
             |                           
            
                16.00
             | 
            
                15.20
             |                     
            
                16.00
             |                                 
            
                1,250
             |  
            
                 
             |                                                              
             
    
         
    
    
 |