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                    Closing price on 3/16/2021
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        |           
                
                    | Open | 15.90 |  
                    | High | 16.30 |  
                    | Low | 15.90 |  
                    | Volume | 6,000 |  
                    | Split-adjusted Price | 15.90 |  
                
             | 
 |  STG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/16/2021 | -0.60 / -3.64% | 15.90 | 16.30 | 15.90 | 15.90 | 15.98 | 15.90 | 6,000 |   |  
            | 3/15/2021 | +0.60 / +3.77% | 15.50 | 16.90 | 15.30 | 16.50 | 15.73 | 16.50 | 12,800 |   |  			
            | 3/12/2021 | -0.30 / -1.85% | 16.20 | 16.20 | 15.90 | 15.90 | 15.99 | 15.90 | 12,300 |   |  
            | 3/11/2021 | +0.20 / +1.25% | 16.00 | 16.30 | 16.00 | 16.20 | 16.06 | 16.20 | 23,800 |   |  			
            | 3/10/2021 | 0.00 / 0.00% | 16.00 | 16.00 | 15.80 | 16.00 | 15.91 | 16.00 | 21,800 |   |  
            | 3/9/2021 | +0.40 / +2.56% | 15.90 | 16.00 | 15.80 | 16.00 | 15.92 | 16.00 | 6,900 |   |  			
            | 3/8/2021 | +0.10 / +0.65% | 16.00 | 16.20 | 15.60 | 15.60 | 15.74 | 15.60 | 9,800 |   |  
            | 3/5/2021 | 0.00 / 0.00% | 15.50 | 15.50 | 15.10 | 15.50 | 15.26 | 15.50 | 8,700 |   |  			
            | 3/4/2021 | -0.10 / -0.64% | 15.60 | 15.60 | 15.30 | 15.50 | 15.45 | 15.50 | 9,700 |   |  
            | 3/3/2021 | 0.00 / 0.00% | 15.60 | 15.70 | 15.50 | 15.60 | 15.60 | 15.60 | 18,700 |   |  			
            | 3/2/2021 | +0.10 / +0.65% | 15.80 | 15.80 | 15.60 | 15.60 | 15.72 | 15.60 | 1,800 |   |  
            | 3/1/2021 | 0.00 / 0.00% | 15.20 | 15.80 | 14.85 | 15.50 | 15.50 | 15.50 | 19,500 |   |  			
            | 2/26/2021 | 0.00 / 0.00% | 15.50 | 15.50 | 15.15 | 15.50 | 15.26 | 15.50 | 17,500 |   |  
            | 2/25/2021 | -0.10 / -0.64% | 15.55 | 15.55 | 14.75 | 15.50 | 15.15 | 15.50 | 12,700 |   |  			
            | 2/24/2021 | -0.20 / -1.27% | 15.80 | 15.80 | 15.60 | 15.60 | 15.64 | 15.60 | 7,800 |   |  
            | 2/23/2021 | +0.15 / +0.96% | 16.20 | 16.20 | 15.80 | 15.80 | 16.01 | 15.80 | 13,300 |   |  			
            | 2/22/2021 | +1.00 / +6.83% | 14.60 | 15.65 | 14.50 | 15.65 | 14.65 | 15.65 | 75,000 |   |  
            | 2/19/2021 | -0.10 / -0.68% | 14.70 | 14.70 | 14.60 | 14.65 | 14.63 | 14.65 | 2,900 |   |  			
            | 2/18/2021 | 0.00 / 0.00% | 14.75 | 15.00 | 14.60 | 14.75 | 14.76 | 14.75 | 9,000 |   |  
            | 2/17/2021 | -0.15 / -1.01% | 14.70 | 14.85 | 13.95 | 14.75 | 14.12 | 14.75 | 78,500 |   |  			
            | 2/9/2021 | -0.20 / -1.32% | 14.60 | 14.90 | 14.30 | 14.90 | 14.54 | 14.90 | 22,200 |   |  
            | 2/8/2021 | 0.00 / 0.00% | 15.10 | 15.10 | 14.25 | 15.10 | 14.64 | 15.10 | 20,600 |   |  			
            | 2/5/2021 | +0.10 / +0.67% | 14.90 | 15.10 | 14.90 | 15.10 | 14.97 | 15.10 | 28,100 |   |  
            | 2/4/2021 | -0.20 / -1.32% | 15.20 | 15.20 | 14.25 | 15.00 | 14.58 | 15.00 | 21,900 |   |  			
            | 2/3/2021 | +0.40 / +2.70% | 15.00 | 15.20 | 14.10 | 15.20 | 14.43 | 15.20 | 5,000 |   |  
            | 2/2/2021 | +0.30 / +2.07% | 14.50 | 15.40 | 13.50 | 14.80 | 14.50 | 14.80 | 62,000 |   |  			
            | 2/1/2021 | -0.95 / -6.15% | 16.00 | 16.00 | 14.50 | 14.50 | 15.45 | 14.50 | 10,800 |   |  
            | 1/29/2021 | +0.55 / +3.69% | 14.50 | 15.50 | 14.50 | 15.45 | 15.17 | 15.45 | 2,500 |   |  			
            | 1/28/2021 | -1.10 / -6.88% | 16.00 | 16.00 | 14.90 | 14.90 | 15.08 | 14.90 | 19,200 |   |  
            | 1/27/2021 | -0.50 / -3.03% | 16.50 | 16.50 | 15.80 | 16.00 | 15.95 | 16.00 | 3,100 |   |  |