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            | 
                    Closing price on 10/16/2017
                 |  |  
    
        |           
                
                    | Open | 3.62 |  
                    | High | 3.62 |  
                    | Low | 3.57 |  
                    | Volume | 114,570 |  
                    | Split-adjusted Price | 3.59 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/16/2017 | 0.00 / 0.00% | 3.62 | 3.62 | 3.57 | 3.59 | 3.59 | 3.59 | 114,570 |   |  
            | 10/13/2017 | -0.01 / -0.28% | 3.51 | 3.62 | 3.51 | 3.59 | 3.55 | 3.59 | 142,020 |   |  			
            | 10/12/2017 | -0.01 / -0.28% | 3.61 | 3.65 | 3.52 | 3.60 | 3.59 | 3.60 | 123,700 |   |  
            | 10/11/2017 | 0.00 / 0.00% | 3.58 | 3.69 | 3.58 | 3.61 | 3.60 | 3.61 | 132,310 |   |  			
            | 10/10/2017 | 0.00 / 0.00% | 3.76 | 3.76 | 3.60 | 3.61 | 3.61 | 3.61 | 172,390 |   |  
            | 10/9/2017 | -0.10 / -2.70% | 3.88 | 3.88 | 3.61 | 3.61 | 3.69 | 3.61 | 103,910 |   |  			
            | 10/6/2017 | -0.03 / -0.80% | 3.75 | 3.80 | 3.70 | 3.71 | 3.73 | 3.71 | 76,350 |   |  
            | 10/5/2017 | +0.01 / +0.27% | 3.80 | 3.90 | 3.74 | 3.74 | 3.82 | 3.74 | 84,720 |   |  			
            | 10/4/2017 | +0.24 / +6.88% | 3.45 | 3.73 | 3.45 | 3.73 | 3.68 | 3.73 | 161,260 |   |  
            | 10/3/2017 | -0.23 / -6.18% | 3.71 | 3.75 | 3.46 | 3.49 | 3.60 | 3.49 | 271,020 |   |  			
            | 10/2/2017 | -0.11 / -2.87% | 3.89 | 3.89 | 3.72 | 3.72 | 3.80 | 3.72 | 165,920 |   |  
            | 9/29/2017 | +0.07 / +1.86% | 3.88 | 3.88 | 3.76 | 3.83 | 3.79 | 3.83 | 247,590 |   |  			
            | 9/28/2017 | -0.24 / -6.00% | 4.07 | 4.09 | 3.75 | 3.76 | 3.86 | 3.76 | 611,240 |   |  
            | 9/27/2017 | +0.02 / +0.50% | 4.00 | 4.07 | 3.98 | 4.00 | 3.99 | 4.00 | 97,660 |   |  			
            | 9/26/2017 | -0.09 / -2.21% | 4.07 | 4.10 | 3.92 | 3.98 | 4.00 | 3.98 | 220,860 |   |  
            | 9/25/2017 | +0.07 / +1.75% | 4.14 | 4.14 | 4.00 | 4.07 | 4.04 | 4.07 | 139,420 |   |  			
            | 9/22/2017 | -0.08 / -1.96% | 4.08 | 4.08 | 3.90 | 4.00 | 3.98 | 4.00 | 191,850 |   |  
            | 9/21/2017 | -0.13 / -3.09% | 4.07 | 4.18 | 3.99 | 4.08 | 4.03 | 4.08 | 334,590 |   |  			
            | 9/20/2017 | -0.09 / -2.09% | 4.15 | 4.21 | 4.11 | 4.21 | 4.16 | 4.21 | 222,420 |   |  
            | 9/19/2017 | -0.02 / -0.46% | 4.35 | 4.38 | 4.11 | 4.30 | 4.26 | 4.30 | 387,120 |   |  			
            | 9/18/2017 | +0.11 / +2.61% | 4.37 | 4.40 | 4.25 | 4.32 | 4.32 | 4.32 | 313,400 |   |  
            | 9/15/2017 | +0.27 / +6.85% | 3.91 | 4.21 | 3.91 | 4.21 | 4.18 | 4.21 | 899,430 |   |  			
            | 9/14/2017 | +0.09 / +2.34% | 3.84 | 3.95 | 3.83 | 3.94 | 3.93 | 3.94 | 281,680 |   |  
            | 9/13/2017 | +0.03 / +0.79% | 3.89 | 3.90 | 3.79 | 3.85 | 3.82 | 3.85 | 144,580 |   |  			
            | 9/12/2017 | +0.03 / +0.79% | 3.75 | 3.84 | 3.75 | 3.82 | 3.80 | 3.82 | 157,630 |   |  
            | 9/11/2017 | -0.01 / -0.26% | 3.80 | 3.85 | 3.70 | 3.79 | 3.79 | 3.79 | 173,850 |   |  			
            | 9/8/2017 | -0.10 / -2.56% | 3.88 | 3.90 | 3.80 | 3.80 | 3.84 | 3.80 | 273,810 |   |  
            | 9/7/2017 | -0.01 / -0.26% | 3.90 | 3.93 | 3.89 | 3.90 | 3.90 | 3.90 | 80,510 |   |  			
            | 9/6/2017 | +0.05 / +1.30% | 3.95 | 3.95 | 3.86 | 3.91 | 3.89 | 3.91 | 105,580 |   |  
            | 9/5/2017 | -0.09 / -2.28% | 3.95 | 3.96 | 3.86 | 3.86 | 3.90 | 3.86 | 162,480 |   |  |