| 
                 
                    Closing price on 8/5/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    20.15 | 
                 
                
                    | High | 
                    22.00 | 
                 
                
                    | Low | 
                    20.15 | 
                     
                
                    | Volume | 
                    96,100 | 
                                 
                
                    | Split-adjusted Price | 
                    20.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/5/2021
             | 
            
                -0.70 / -3.24%
             |             
            
                20.15
             |           
            
                22.00
             |               
            
                20.15
             |                           
            
                20.90
             | 
            
                21.28
             |                     
            
                20.90
             |                                 
            
                96,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2021
             | 
            
                +1.40 / +6.93%
             |             
            
                21.60
             |           
            
                21.60
             |               
            
                20.70
             |                           
            
                21.60
             | 
            
                21.58
             |                     
            
                21.60
             |                                 
            
                397,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2021
             | 
            
                +1.30 / +6.88%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                19.80
             |                           
            
                20.20
             | 
            
                20.19
             |                     
            
                20.20
             |                                 
            
                133,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2021
             | 
            
                +1.20 / +6.78%
             |             
            
                17.50
             |           
            
                18.90
             |               
            
                17.50
             |                           
            
                18.90
             | 
            
                18.65
             |                     
            
                18.90
             |                                 
            
                79,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2021
             | 
            
                +0.30 / +1.72%
             |             
            
                17.40
             |           
            
                17.80
             |               
            
                17.10
             |                           
            
                17.70
             | 
            
                17.59
             |                     
            
                17.70
             |                                 
            
                21,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.75
             |           
            
                17.75
             |               
            
                17.35
             |                           
            
                17.40
             | 
            
                17.51
             |                     
            
                17.40
             |                                 
            
                18,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/28/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.20
             |           
            
                17.40
             |               
            
                17.20
             |                           
            
                17.40
             | 
            
                17.20
             |                     
            
                17.40
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2021
             | 
            
                -0.10 / -0.57%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.00
             |                           
            
                17.40
             | 
            
                17.06
             |                     
            
                17.40
             |                                 
            
                3,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2021
             | 
            
                +0.80 / +4.79%
             |             
            
                16.75
             |           
            
                17.50
             |               
            
                16.70
             |                           
            
                17.50
             | 
            
                17.14
             |                     
            
                17.50
             |                                 
            
                19,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2021
             | 
            
                +0.15 / +0.91%
             |             
            
                16.50
             |           
            
                16.80
             |               
            
                16.10
             |                           
            
                16.70
             | 
            
                16.53
             |                     
            
                16.70
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/22/2021
             | 
            
                +0.55 / +3.44%
             |             
            
                16.10
             |           
            
                16.55
             |               
            
                16.10
             |                           
            
                16.55
             | 
            
                16.36
             |                     
            
                16.55
             |                                 
            
                4,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/21/2021
             | 
            
                0.00 / 0.00%
             |             
            
                15.90
             |           
            
                16.00
             |               
            
                15.90
             |                           
            
                16.00
             | 
            
                15.98
             |                     
            
                16.00
             |                                 
            
                9,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2021
             | 
            
                +0.10 / +0.63%
             |             
            
                16.10
             |           
            
                16.10
             |               
            
                15.50
             |                           
            
                16.00
             | 
            
                15.89
             |                     
            
                16.00
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2021
             | 
            
                -0.10 / -0.63%
             |             
            
                15.20
             |           
            
                15.90
             |               
            
                15.20
             |                           
            
                15.90
             | 
            
                15.58
             |                     
            
                15.90
             |                                 
            
                9,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2021
             | 
            
                0.00 / 0.00%
             |             
            
                15.30
             |           
            
                16.00
             |               
            
                15.00
             |                           
            
                16.00
             | 
            
                15.33
             |                     
            
                16.00
             |                                 
            
                21,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2021
             | 
            
                0.00 / 0.00%
             |             
            
                15.60
             |           
            
                16.00
             |               
            
                15.60
             |                           
            
                16.00
             | 
            
                15.95
             |                     
            
                16.00
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2021
             | 
            
                -0.10 / -0.62%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                16.00
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2021
             | 
            
                +0.10 / +0.63%
             |             
            
                16.15
             |           
            
                16.15
             |               
            
                15.30
             |                           
            
                16.10
             | 
            
                16.00
             |                     
            
                16.10
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2021
             | 
            
                -0.95 / -5.60%
             |             
            
                16.30
             |           
            
                16.50
             |               
            
                15.80
             |                           
            
                16.00
             | 
            
                15.96
             |                     
            
                16.00
             |                                 
            
                38,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2021
             | 
            
                +0.05 / +0.30%
             |             
            
                16.80
             |           
            
                16.95
             |               
            
                16.80
             |                           
            
                16.95
             | 
            
                16.95
             |                     
            
                16.95
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2021
             | 
            
                -0.05 / -0.29%
             |             
            
                16.15
             |           
            
                16.95
             |               
            
                16.10
             |                           
            
                16.90
             | 
            
                16.78
             |                     
            
                16.90
             |                                 
            
                7,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2021
             | 
            
                -0.25 / -1.45%
             |             
            
                17.20
             |           
            
                17.20
             |               
            
                16.00
             |                           
            
                16.95
             | 
            
                16.05
             |                     
            
                16.95
             |                                 
            
                68,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2021
             | 
            
                -0.60 / -3.37%
             |             
            
                17.50
             |           
            
                17.50
             |               
            
                17.20
             |                           
            
                17.20
             | 
            
                17.35
             |                     
            
                17.20
             |                                 
            
                21,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2021
             | 
            
                -0.20 / -1.11%
             |             
            
                17.35
             |           
            
                17.95
             |               
            
                17.35
             |                           
            
                17.80
             | 
            
                17.42
             |                     
            
                17.80
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2021
             | 
            
                0.00 / 0.00%
             |             
            
                18.00
             |           
            
                18.05
             |               
            
                17.90
             |                           
            
                18.00
             | 
            
                18.00
             |                     
            
                18.00
             |                                 
            
                14,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2021
             | 
            
                +0.20 / +1.12%
             |             
            
                17.65
             |           
            
                18.00
             |               
            
                17.65
             |                           
            
                18.00
             | 
            
                17.86
             |                     
            
                18.00
             |                                 
            
                10,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.80
             |           
            
                17.90
             |               
            
                17.60
             |                           
            
                17.80
             | 
            
                17.70
             |                     
            
                17.80
             |                                 
            
                20,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2021
             | 
            
                -0.10 / -0.56%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.70
             |                           
            
                17.80
             | 
            
                17.77
             |                     
            
                17.80
             |                                 
            
                9,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2021
             | 
            
                0.00 / 0.00%
             |             
            
                17.80
             |           
            
                18.00
             |               
            
                17.80
             |                           
            
                17.90
             | 
            
                17.90
             |                     
            
                17.90
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2021
             | 
            
                -0.30 / -1.65%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                17.90
             |                           
            
                17.90
             | 
            
                18.04
             |                     
            
                17.90
             |                                 
            
                4,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |