| 
    
        
            | 
                    Closing price on 3/21/2017
                 |  |  
    
        |           
                
                    | Open | 2.50 |  
                    | High | 2.52 |  
                    | Low | 2.47 |  
                    | Volume | 156,850 |  
                    | Split-adjusted Price | 2.49 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/21/2017 | -0.01 / -0.40% | 2.50 | 2.52 | 2.47 | 2.49 | 2.49 | 2.49 | 156,850 |   |  
            | 3/20/2017 | -0.01 / -0.40% | 2.51 | 2.51 | 2.45 | 2.50 | 2.47 | 2.50 | 239,980 |   |  			
            | 3/17/2017 | -0.11 / -4.20% | 2.60 | 2.60 | 2.45 | 2.51 | 2.49 | 2.51 | 162,950 |   |  
            | 3/16/2017 | +0.14 / +5.65% | 2.48 | 2.63 | 2.45 | 2.62 | 2.58 | 2.62 | 173,120 |   |  			
            | 3/15/2017 | -0.11 / -4.25% | 2.57 | 2.58 | 2.46 | 2.48 | 2.54 | 2.48 | 203,140 |   |  
            | 3/14/2017 | 0.00 / 0.00% | 2.45 | 2.63 | 2.45 | 2.59 | 2.53 | 2.59 | 193,880 |   |  			
            | 3/13/2017 | -0.01 / -0.38% | 2.71 | 2.71 | 2.46 | 2.59 | 2.59 | 2.59 | 211,220 |   |  
            | 3/10/2017 | -0.19 / -6.81% | 2.79 | 2.79 | 2.60 | 2.60 | 2.64 | 2.60 | 372,510 |   |  			
            | 3/9/2017 | +0.12 / +4.49% | 2.57 | 2.85 | 2.57 | 2.79 | 2.77 | 2.79 | 88,900 |   |  
            | 3/8/2017 | -0.18 / -6.32% | 2.71 | 2.84 | 2.66 | 2.67 | 2.71 | 2.67 | 239,070 |   |  			
            | 3/7/2017 | -0.07 / -2.40% | 2.74 | 2.86 | 2.74 | 2.85 | 2.79 | 2.85 | 290,010 |   |  
            | 3/6/2017 | +0.01 / +0.34% | 3.11 | 3.11 | 2.80 | 2.92 | 3.00 | 2.92 | 281,970 |   |  			
            | 3/3/2017 | +0.19 / +6.99% | 2.91 | 2.91 | 2.80 | 2.91 | 2.90 | 2.91 | 474,470 |   |  
            | 3/2/2017 | +0.17 / +6.67% | 2.38 | 2.72 | 2.38 | 2.72 | 2.61 | 2.72 | 488,220 |   |  			
            | 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 |   |  |