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                    Closing price on 3/19/2018
                 |  |  
    
        |           
                
                    | Open | 3.10 |  
                    | High | 3.10 |  
                    | Low | 3.00 |  
                    | Volume | 177,500 |  
                    | Split-adjusted Price | 3.00 |  
                
             | 
 |  DST Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/19/2018 | -0.10 / -3.23% | 3.10 | 3.10 | 3.00 | 3.00 | 3.02 | 3.00 | 177,500 |   |  
            | 3/16/2018 | 0.00 / 0.00% | 3.10 | 3.20 | 3.00 | 3.10 | 3.06 | 3.10 | 347,020 |   |  			
            | 3/15/2018 | -0.30 / -8.82% | 3.30 | 3.30 | 3.10 | 3.10 | 3.23 | 3.10 | 436,690 |   |  
            | 3/14/2018 | -0.20 / -5.56% | 3.60 | 3.70 | 3.30 | 3.40 | 3.46 | 3.40 | 573,190 |   |  			
            | 3/13/2018 | +0.10 / +2.86% | 3.60 | 3.80 | 3.40 | 3.60 | 3.54 | 3.60 | 878,251 |   |  
            | 3/12/2018 | +0.30 / +9.38% | 3.20 | 3.50 | 3.20 | 3.50 | 3.47 | 3.50 | 1,564,350 |   |  			
            | 3/9/2018 | 0.00 / 0.00% | 3.20 | 3.30 | 3.10 | 3.20 | 3.17 | 3.20 | 543,430 |   |  
            | 3/8/2018 | +0.20 / +6.67% | 3.10 | 3.20 | 3.00 | 3.20 | 3.14 | 3.20 | 418,600 |   |  			
            | 3/7/2018 | +0.10 / +3.45% | 2.80 | 3.10 | 2.70 | 3.00 | 2.89 | 3.00 | 433,110 |   |  
            | 3/6/2018 | +0.10 / +3.57% | 2.80 | 2.90 | 2.70 | 2.90 | 2.78 | 2.90 | 209,267 |   |  			
            | 3/5/2018 | +0.10 / +3.70% | 2.80 | 2.80 | 2.70 | 2.80 | 2.79 | 2.80 | 117,100 |   |  
            | 3/2/2018 | -0.10 / -3.57% | 2.80 | 2.80 | 2.70 | 2.70 | 2.73 | 2.70 | 369,900 |   |  			
            | 3/1/2018 | 0.00 / 0.00% | 2.80 | 2.80 | 2.70 | 2.80 | 2.74 | 2.80 | 156,360 |   |  
            | 2/28/2018 | 0.00 / 0.00% | 2.80 | 2.90 | 2.70 | 2.80 | 2.78 | 2.80 | 326,166 |   |  			
            | 2/27/2018 | 0.00 / 0.00% | 2.80 | 3.00 | 2.80 | 2.80 | 2.85 | 2.80 | 343,800 |   |  
            | 2/26/2018 | 0.00 / 0.00% | 2.80 | 2.90 | 2.70 | 2.80 | 2.76 | 2.80 | 306,530 |   |  			
            | 2/23/2018 | +0.10 / +3.70% | 2.70 | 2.90 | 2.70 | 2.80 | 2.79 | 2.80 | 377,244 |   |  
            | 2/22/2018 | -0.10 / -3.57% | 2.80 | 2.80 | 2.70 | 2.70 | 2.73 | 2.70 | 168,100 |   |  			
            | 2/21/2018 | 0.00 / 0.00% | 2.70 | 2.80 | 2.70 | 2.80 | 2.77 | 2.80 | 130,200 |   |  
            | 2/13/2018 | -0.30 / -9.68% | 2.90 | 3.00 | 2.80 | 2.80 | 2.80 | 2.80 | 1,239,954 |   |  			
            | 2/12/2018 | -0.30 / -8.82% | 3.20 | 3.30 | 3.10 | 3.10 | 3.10 | 3.10 | 454,600 |   |  
            | 2/9/2018 | 0.00 / 0.00% | 3.50 | 3.50 | 3.10 | 3.40 | 3.21 | 3.40 | 2,511,929 |   |  			
            | 2/8/2018 | +0.30 / +9.68% | 3.10 | 3.40 | 2.80 | 3.40 | 2.93 | 3.40 | 5,636,180 |   |  
            | 2/7/2018 | 0.00 / 0.00% | 2.80 | 3.20 | 2.80 | 3.10 | 2.91 | 3.10 | 430,700 |   |  			
            | 2/6/2018 | -0.30 / -8.82% | 3.20 | 3.20 | 3.10 | 3.10 | 3.10 | 3.10 | 433,700 |   |  
            | 2/5/2018 | 0.00 / 0.00% | 3.40 | 3.50 | 3.10 | 3.40 | 3.14 | 3.40 | 2,488,310 |   |  			
            | 2/2/2018 | -0.30 / -8.11% | 3.60 | 3.90 | 3.40 | 3.40 | 3.52 | 3.40 | 4,593,519 |   |  
            | 2/1/2018 | -0.40 / -9.76% | 4.10 | 4.40 | 3.70 | 3.70 | 3.71 | 3.70 | 3,931,100 |   |  			
            | 1/31/2018 | +0.30 / +7.89% | 3.70 | 4.10 | 3.60 | 4.10 | 4.01 | 4.10 | 4,408,480 |   |  
            | 1/30/2018 | -0.10 / -2.56% | 3.80 | 3.90 | 3.60 | 3.80 | 3.64 | 3.80 | 1,095,920 |   |  |