| 
                 
                    Closing price on 3/20/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.20 | 
                 
                
                    | High | 
                    4.20 | 
                 
                
                    | Low | 
                    4.20 | 
                     
                
                    | Volume | 
                    10 | 
                                 
                
                    | Split-adjusted Price | 
                    2.89 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SGT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/20/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.20
             |               
            
                4.20
             |                           
            
                4.20
             | 
            
                4.20
             |                     
            
                2.89
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2020
             | 
            
                -0.16 / -3.67%
             |             
            
                4.06
             |           
            
                4.20
             |               
            
                4.06
             |                           
            
                4.20
             | 
            
                4.13
             |                     
            
                2.89
             |                                 
            
                80
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2020
             | 
            
                +0.28 / +6.86%
             |             
            
                4.36
             |           
            
                4.36
             |               
            
                4.00
             |                           
            
                4.36
             | 
            
                4.08
             |                     
            
                3.00
             |                                 
            
                70
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2020
             | 
            
                -0.21 / -4.90%
             |             
            
                4.29
             |           
            
                4.29
             |               
            
                4.07
             |                           
            
                4.08
             | 
            
                4.18
             |                     
            
                2.81
             |                                 
            
                6,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2020
             | 
            
                +0.23 / +5.67%
             |             
            
                4.34
             |           
            
                4.34
             |               
            
                4.20
             |                           
            
                4.29
             | 
            
                4.29
             |                     
            
                2.95
             |                                 
            
                60
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2020
             | 
            
                0.00 / 0.00%
             |             
            
                3.79
             |           
            
                4.06
             |               
            
                3.78
             |                           
            
                4.06
             | 
            
                3.87
             |                     
            
                2.80
             |                                 
            
                3,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2020
             | 
            
                -0.30 / -6.88%
             |             
            
                4.07
             |           
            
                4.32
             |               
            
                4.06
             |                           
            
                4.06
             | 
            
                4.13
             |                     
            
                2.80
             |                                 
            
                11,120
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2020
             | 
            
                -0.03 / -0.68%
             |             
            
                4.39
             |           
            
                4.39
             |               
            
                4.09
             |                           
            
                4.36
             | 
            
                4.31
             |                     
            
                3.00
             |                                 
            
                340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2020
             | 
            
                -0.05 / -1.13%
             |             
            
                4.13
             |           
            
                4.39
             |               
            
                4.13
             |                           
            
                4.39
             | 
            
                4.26
             |                     
            
                3.02
             |                                 
            
                260
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2020
             | 
            
                -0.33 / -6.92%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.44
             |                           
            
                4.44
             | 
            
                4.67
             |                     
            
                3.06
             |                                 
            
                750
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2020
             | 
            
                -0.01 / -0.21%
             |             
            
                4.46
             |           
            
                4.77
             |               
            
                4.46
             |                           
            
                4.77
             | 
            
                4.76
             |                     
            
                3.29
             |                                 
            
                210
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2020
             | 
            
                -0.21 / -4.21%
             |             
            
                4.84
             |           
            
                4.89
             |               
            
                4.65
             |                           
            
                4.78
             | 
            
                4.67
             |                     
            
                3.29
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2020
             | 
            
                +0.04 / +0.81%
             |             
            
                4.99
             |           
            
                4.99
             |               
            
                4.99
             |                           
            
                4.99
             | 
            
                4.99
             |                     
            
                3.44
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2020
             | 
            
                +0.31 / +6.68%
             |             
            
                4.56
             |           
            
                4.95
             |               
            
                4.55
             |                           
            
                4.95
             | 
            
                4.59
             |                     
            
                3.41
             |                                 
            
                6,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2020
             | 
            
                -0.34 / -6.83%
             |             
            
                5.30
             |           
            
                5.32
             |               
            
                4.64
             |                           
            
                4.64
             | 
            
                4.69
             |                     
            
                3.20
             |                                 
            
                6,830
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2020
             | 
            
                +0.01 / +0.20%
             |             
            
                4.70
             |           
            
                4.98
             |               
            
                4.63
             |                           
            
                4.98
             | 
            
                4.63
             |                     
            
                3.43
             |                                 
            
                5,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2020
             | 
            
                +0.07 / +1.43%
             |             
            
                4.97
             |           
            
                4.97
             |               
            
                4.97
             |                           
            
                4.97
             | 
            
                4.97
             |                     
            
                3.42
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.97
             |           
            
                4.97
             |               
            
                4.61
             |                           
            
                4.90
             | 
            
                4.63
             |                     
            
                3.37
             |                                 
            
                10,810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2020
             | 
            
                +0.11 / +2.30%
             |             
            
                4.75
             |           
            
                4.99
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.76
             |                     
            
                3.37
             |                                 
            
                6,930
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2020
             | 
            
                -0.01 / -0.21%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.79
             |                           
            
                4.79
             | 
            
                4.80
             |                     
            
                3.30
             |                                 
            
                810
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2020
             | 
            
                -0.04 / -0.83%
             |             
            
                4.81
             |           
            
                4.86
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.82
             |                     
            
                3.31
             |                                 
            
                7,710
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2020
             | 
            
                -0.35 / -6.74%
             |             
            
                4.85
             |           
            
                5.05
             |               
            
                4.84
             |                           
            
                4.84
             | 
            
                5.00
             |                     
            
                3.33
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2020
             | 
            
                +0.25 / +5.06%
             |             
            
                5.19
             |           
            
                5.19
             |               
            
                5.19
             |                           
            
                5.19
             | 
            
                5.19
             |                     
            
                3.57
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.94
             |               
            
                4.60
             |                           
            
                4.94
             | 
            
                4.70
             |                     
            
                3.40
             |                                 
            
                7,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2020
             | 
            
                -0.06 / -1.20%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.80
             |                           
            
                4.94
             | 
            
                4.97
             |                     
            
                3.40
             |                                 
            
                13,490
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2020
             | 
            
                0.00 / 0.00%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.65
             |                           
            
                5.00
             | 
            
                4.91
             |                     
            
                3.44
             |                                 
            
                4,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2020
             | 
            
                -0.02 / -0.40%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.00
             |                     
            
                3.44
             |                                 
            
                50
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2020
             | 
            
                0.00 / 0.00%
             |             
            
                4.71
             |           
            
                5.02
             |               
            
                4.71
             |                           
            
                5.02
             | 
            
                4.83
             |                     
            
                3.46
             |                                 
            
                3,310
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2020
             | 
            
                -0.37 / -6.86%
             |             
            
                5.04
             |           
            
                5.04
             |               
            
                5.02
             |                           
            
                5.02
             | 
            
                5.03
             |                     
            
                3.46
             |                                 
            
                2,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2020
             | 
            
                0.00 / 0.00%
             |             
            
                5.39
             |           
            
                5.39
             |               
            
                5.39
             |                           
            
                5.39
             | 
            
                5.39
             |                     
            
                3.71
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |