| 
                 
                    Closing price on 12/13/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    30.70 | 
                 
                
                    | High | 
                    31.00 | 
                 
                
                    | Low | 
                    30.50 | 
                     
                
                    | Volume | 
                    6,300 | 
                                 
                
                    | Split-adjusted Price | 
                    30.70 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/13/2021
             | 
            
                -0.60 / -1.92%
             |             
            
                30.70
             |           
            
                31.00
             |               
            
                30.50
             |                           
            
                30.70
             | 
            
                30.75
             |                     
            
                30.70
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                12/10/2021
             | 
            
                -0.30 / -0.95%
             |             
            
                30.20
             |           
            
                31.50
             |               
            
                30.20
             |                           
            
                31.30
             | 
            
                31.17
             |                     
            
                31.30
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/9/2021
             | 
            
                -0.40 / -1.25%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                30.10
             |                           
            
                31.60
             | 
            
                31.91
             |                     
            
                31.60
             |                                 
            
                14,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/8/2021
             | 
            
                +1.00 / +3.23%
             |             
            
                31.40
             |           
            
                32.00
             |               
            
                31.40
             |                           
            
                32.00
             | 
            
                31.92
             |                     
            
                32.00
             |                                 
            
                29,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/7/2021
             | 
            
                +1.30 / +4.38%
             |             
            
                29.80
             |           
            
                31.15
             |               
            
                29.80
             |                           
            
                31.00
             | 
            
                31.01
             |                     
            
                31.00
             |                                 
            
                3,700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/6/2021
             | 
            
                -1.30 / -4.19%
             |             
            
                31.05
             |           
            
                31.05
             |               
            
                29.70
             |                           
            
                29.70
             | 
            
                30.30
             |                     
            
                29.70
             |                                 
            
                16,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/3/2021
             | 
            
                -0.85 / -2.67%
             |             
            
                31.85
             |           
            
                31.85
             |               
            
                29.70
             |                           
            
                31.00
             | 
            
                31.40
             |                     
            
                31.00
             |                                 
            
                85,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/2/2021
             | 
            
                -0.45 / -1.39%
             |             
            
                32.30
             |           
            
                32.80
             |               
            
                31.85
             |                           
            
                31.85
             | 
            
                32.12
             |                     
            
                31.85
             |                                 
            
                21,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/1/2021
             | 
            
                -0.75 / -2.27%
             |             
            
                33.00
             |           
            
                33.20
             |               
            
                32.00
             |                           
            
                32.30
             | 
            
                32.60
             |                     
            
                32.30
             |                                 
            
                17,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/30/2021
             | 
            
                +0.05 / +0.15%
             |             
            
                33.00
             |           
            
                33.60
             |               
            
                33.00
             |                           
            
                33.05
             | 
            
                33.21
             |                     
            
                33.05
             |                                 
            
                38,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/29/2021
             | 
            
                -0.40 / -1.20%
             |             
            
                32.00
             |           
            
                34.50
             |               
            
                32.00
             |                           
            
                33.00
             | 
            
                33.16
             |                     
            
                33.00
             |                                 
            
                32,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/26/2021
             | 
            
                0.00 / 0.00%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                32.50
             |                           
            
                33.40
             | 
            
                33.32
             |                     
            
                33.40
             |                                 
            
                37,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/25/2021
             | 
            
                +0.40 / +1.21%
             |             
            
                32.05
             |           
            
                33.40
             |               
            
                32.00
             |                           
            
                33.40
             | 
            
                32.88
             |                     
            
                33.40
             |                                 
            
                43,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/24/2021
             | 
            
                -0.50 / -1.49%
             |             
            
                33.50
             |           
            
                33.50
             |               
            
                32.10
             |                           
            
                33.00
             | 
            
                33.01
             |                     
            
                33.00
             |                                 
            
                19,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/23/2021
             | 
            
                +0.40 / +1.21%
             |             
            
                33.00
             |           
            
                34.60
             |               
            
                33.00
             |                           
            
                33.50
             | 
            
                34.00
             |                     
            
                33.50
             |                                 
            
                21,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/22/2021
             | 
            
                -1.40 / -4.06%
             |             
            
                34.50
             |           
            
                34.50
             |               
            
                33.00
             |                           
            
                33.10
             | 
            
                33.23
             |                     
            
                33.10
             |                                 
            
                42,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2021
             | 
            
                -1.10 / -3.09%
             |             
            
                35.60
             |           
            
                35.60
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                34.70
             |                     
            
                34.50
             |                                 
            
                52,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2021
             | 
            
                +1.60 / +4.71%
             |             
            
                33.50
             |           
            
                35.95
             |               
            
                33.20
             |                           
            
                35.60
             | 
            
                34.25
             |                     
            
                35.60
             |                                 
            
                99,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2021
             | 
            
                -0.85 / -2.44%
             |             
            
                33.75
             |           
            
                35.40
             |               
            
                33.75
             |                           
            
                34.00
             | 
            
                34.30
             |                     
            
                34.00
             |                                 
            
                46,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2021
             | 
            
                -0.05 / -0.14%
             |             
            
                33.90
             |           
            
                35.50
             |               
            
                33.90
             |                           
            
                34.85
             | 
            
                34.78
             |                     
            
                34.85
             |                                 
            
                88,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/15/2021
             | 
            
                +0.90 / +2.65%
             |             
            
                33.50
             |           
            
                35.00
             |               
            
                31.80
             |                           
            
                34.90
             | 
            
                33.79
             |                     
            
                34.90
             |                                 
            
                127,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2021
             | 
            
                -2.40 / -6.59%
             |             
            
                37.90
             |           
            
                37.90
             |               
            
                34.00
             |                           
            
                34.00
             | 
            
                34.80
             |                     
            
                34.00
             |                                 
            
                81,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2021
             | 
            
                +2.25 / +6.59%
             |             
            
                36.50
             |           
            
                36.50
             |               
            
                35.10
             |                           
            
                36.40
             | 
            
                36.34
             |                     
            
                36.40
             |                                 
            
                263,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2021
             | 
            
                +2.20 / +6.89%
             |             
            
                29.90
             |           
            
                34.15
             |               
            
                29.90
             |                           
            
                34.15
             | 
            
                32.39
             |                     
            
                34.15
             |                                 
            
                229,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2021
             | 
            
                +2.05 / +6.86%
             |             
            
                31.95
             |           
            
                31.95
             |               
            
                31.95
             |                           
            
                31.95
             | 
            
                31.95
             |                     
            
                31.95
             |                                 
            
                118,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/8/2021
             | 
            
                +1.95 / +6.98%
             |             
            
                29.90
             |           
            
                29.90
             |               
            
                29.90
             |                           
            
                29.90
             | 
            
                29.90
             |                     
            
                29.90
             |                                 
            
                64,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2021
             | 
            
                +1.80 / +6.88%
             |             
            
                27.45
             |           
            
                27.95
             |               
            
                26.90
             |                           
            
                27.95
             | 
            
                27.35
             |                     
            
                27.95
             |                                 
            
                158,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2021
             | 
            
                +0.20 / +0.77%
             |             
            
                25.95
             |           
            
                26.30
             |               
            
                25.40
             |                           
            
                26.15
             | 
            
                26.01
             |                     
            
                26.15
             |                                 
            
                24,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2021
             | 
            
                -0.80 / -2.99%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                25.95
             |                           
            
                25.95
             | 
            
                26.18
             |                     
            
                25.95
             |                                 
            
                33,000
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2021
             | 
            
                +0.15 / +0.56%
             |             
            
                26.40
             |           
            
                26.75
             |               
            
                26.20
             |                           
            
                26.75
             | 
            
                26.44
             |                     
            
                26.75
             |                                 
            
                62,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |