| 
    
        
            | 
                    Closing price on 3/1/2017
                 |  |  
    
        |           
                
                    | Open | 2.55 |  
                    | High | 2.55 |  
                    | Low | 2.55 |  
                    | Volume | 155,880 |  
                    | Split-adjusted Price | 2.55 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/1/2017 | -0.19 / -6.93% | 2.55 | 2.55 | 2.55 | 2.55 | 2.55 | 2.55 | 155,880 |   |  
            | 2/28/2017 | -0.20 / -6.80% | 2.75 | 2.75 | 2.74 | 2.74 | 2.74 | 2.74 | 531,570 |   |  			
            | 2/27/2017 | -0.22 / -6.96% | 2.94 | 3.16 | 2.94 | 2.94 | 2.97 | 2.94 | 531,800 |   |  
            | 2/24/2017 | -0.23 / -6.78% | 3.17 | 3.39 | 3.16 | 3.16 | 3.17 | 3.16 | 500,660 |   |  			
            | 2/23/2017 | +0.13 / +3.99% | 3.04 | 3.48 | 3.04 | 3.39 | 3.23 | 3.39 | 1,300,680 |   |  
            | 2/22/2017 | -0.24 / -6.86% | 3.26 | 3.30 | 3.26 | 3.26 | 3.26 | 3.26 | 400,140 |   |  			
            | 2/21/2017 | -0.24 / -6.42% | 3.74 | 4.00 | 3.50 | 3.50 | 3.76 | 3.50 | 777,330 |   |  
            | 2/20/2017 | +0.24 / +6.86% | 3.74 | 3.74 | 3.40 | 3.74 | 3.70 | 3.74 | 704,680 |   |  			
            | 2/17/2017 | +0.22 / +6.71% | 3.50 | 3.50 | 3.06 | 3.50 | 3.41 | 3.50 | 2,394,200 |   |  
            | 2/16/2017 | +0.21 / +6.84% | 3.28 | 3.28 | 3.28 | 3.28 | 3.28 | 3.28 | 825,380 |   |  			
            | 2/15/2017 | +0.20 / +6.97% | 3.07 | 3.07 | 3.07 | 3.07 | 3.07 | 3.07 | 352,290 |   |  
            | 2/14/2017 | +0.18 / +6.69% | 2.86 | 2.87 | 2.70 | 2.87 | 2.86 | 2.87 | 671,980 |   |  			
            | 2/13/2017 | +0.17 / +6.75% | 2.69 | 2.69 | 2.35 | 2.69 | 2.60 | 2.69 | 2,520,720 |   |  
            | 2/10/2017 | +0.16 / +6.78% | 2.52 | 2.52 | 2.52 | 2.52 | 2.52 | 2.52 | 132,070 |   |  			
            | 2/9/2017 | +0.15 / +6.79% | 2.36 | 2.36 | 2.36 | 2.36 | 2.36 | 2.36 | 43,100 |   |  
            | 2/8/2017 | +0.14 / +6.76% | 2.21 | 2.21 | 2.07 | 2.21 | 2.20 | 2.21 | 1,955,730 |   |  			
            | 2/7/2017 | +0.13 / +6.70% | 2.07 | 2.07 | 2.07 | 2.07 | 2.07 | 2.07 | 214,910 |   |  
            | 2/6/2017 | +0.12 / +6.59% | 1.94 | 1.94 | 1.94 | 1.94 | 1.94 | 1.94 | 564,340 |   |  			
            | 2/3/2017 | +0.11 / +6.43% | 1.82 | 1.82 | 1.82 | 1.82 | 1.82 | 1.82 | 408,730 |   |  
            | 2/2/2017 | +0.11 / +6.88% | 1.49 | 1.71 | 1.49 | 1.71 | 1.52 | 1.71 | 1,847,050 |   |  			
            | 1/25/2017 | -0.12 / -6.98% | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1,842,210 |   |  
            | 1/24/2017 | -0.12 / -6.52% | 1.72 | 1.72 | 1.72 | 1.72 | 1.72 | 1.72 | 2,670 |   |  			
            | 1/23/2017 | -0.13 / -6.60% | 1.84 | 1.84 | 1.84 | 1.84 | 1.84 | 1.84 | 1,440 |   |  
            | 1/20/2017 | -0.14 / -6.64% | 1.97 | 1.97 | 1.97 | 1.97 | 1.97 | 1.97 | 280 |   |  			
            | 1/19/2017 | -0.15 / -6.64% | 2.11 | 2.11 | 2.11 | 2.11 | 2.11 | 2.11 | 270 |   |  
            | 1/18/2017 | -0.16 / -6.61% | 2.26 | 2.26 | 2.26 | 2.26 | 2.26 | 2.26 | 60 |   |  			
            | 1/17/2017 | -0.18 / -6.92% | 2.42 | 2.42 | 2.42 | 2.42 | 2.42 | 2.42 | 2,060 |   |  
            | 1/16/2017 | -0.19 / -6.81% | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 560 |   |  			
            | 1/13/2017 | -0.20 / -6.69% | 2.79 | 2.79 | 2.79 | 2.79 | 2.79 | 2.79 | 210 |   |  
            | 1/12/2017 | -0.22 / -6.85% | 3.10 | 3.10 | 2.99 | 2.99 | 3.05 | 2.99 | 26,570 |   |  |