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            | 
                    Closing price on 2/9/2018
                 |  |  
    
        |           
                
                    | Open | 2.73 |  
                    | High | 2.73 |  
                    | Low | 2.52 |  
                    | Volume | 29,220 |  
                    | Split-adjusted Price | 2.52 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/9/2018 | -0.10 / -3.82% | 2.73 | 2.73 | 2.52 | 2.52 | 2.60 | 2.52 | 29,220 |   |  
            | 2/8/2018 | 0.00 / 0.00% | 2.69 | 2.79 | 2.62 | 2.62 | 2.68 | 2.62 | 104,540 |   |  			
            | 2/7/2018 | +0.02 / +0.77% | 2.60 | 2.78 | 2.42 | 2.62 | 2.71 | 2.62 | 149,840 |   |  
            | 2/6/2018 | -0.12 / -4.41% | 2.65 | 2.73 | 2.53 | 2.60 | 2.55 | 2.60 | 75,730 |   |  			
            | 2/5/2018 | -0.20 / -6.85% | 2.92 | 2.92 | 2.72 | 2.72 | 2.79 | 2.72 | 59,430 |   |  
            | 2/2/2018 | +0.05 / +1.74% | 3.00 | 3.05 | 2.87 | 2.92 | 2.97 | 2.92 | 319,710 |   |  			
            | 2/1/2018 | +0.18 / +6.69% | 2.86 | 2.87 | 2.80 | 2.87 | 2.87 | 2.87 | 389,550 |   |  
            | 1/31/2018 | +0.17 / +6.75% | 2.52 | 2.69 | 2.52 | 2.69 | 2.64 | 2.69 | 112,700 |   |  			
            | 1/30/2018 | -0.11 / -4.18% | 2.61 | 2.64 | 2.50 | 2.52 | 2.59 | 2.52 | 192,700 |   |  
            | 1/29/2018 | -0.17 / -6.07% | 2.80 | 2.80 | 2.62 | 2.63 | 2.64 | 2.63 | 51,860 |   |  			
            | 1/26/2018 | 0.00 / 0.00% | 2.72 | 2.80 | 2.67 | 2.80 | 2.73 | 2.80 | 80,990 |   |  
            | 1/25/2018 | +0.04 / +1.45% | 2.76 | 2.80 | 2.70 | 2.80 | 2.72 | 2.80 | 147,940 |   |  			
            | 1/22/2018 | -0.10 / -3.50% | 2.82 | 2.82 | 2.75 | 2.76 | 2.79 | 2.76 | 81,420 |   |  
            | 1/19/2018 | 0.00 / 0.00% | 2.88 | 2.88 | 2.83 | 2.86 | 2.85 | 2.86 | 86,100 |   |  			
            | 1/18/2018 | +0.01 / +0.35% | 2.85 | 2.89 | 2.80 | 2.86 | 2.86 | 2.86 | 151,320 |   |  
            | 1/17/2018 | +0.02 / +0.71% | 2.83 | 2.86 | 2.83 | 2.85 | 2.84 | 2.85 | 136,090 |   |  			
            | 1/16/2018 | +0.02 / +0.71% | 2.81 | 2.85 | 2.80 | 2.83 | 2.81 | 2.83 | 108,560 |   |  
            | 1/15/2018 | -0.07 / -2.43% | 2.91 | 2.91 | 2.80 | 2.81 | 2.81 | 2.81 | 111,770 |   |  			
            | 1/12/2018 | -0.02 / -0.69% | 2.87 | 2.91 | 2.81 | 2.88 | 2.84 | 2.88 | 229,860 |   |  
            | 1/11/2018 | +0.02 / +0.69% | 2.86 | 2.90 | 2.84 | 2.90 | 2.86 | 2.90 | 90,200 |   |  			
            | 1/10/2018 | -0.02 / -0.69% | 2.94 | 2.94 | 2.87 | 2.88 | 2.88 | 2.88 | 32,650 |   |  
            | 1/9/2018 | -0.04 / -1.36% | 2.89 | 2.94 | 2.84 | 2.90 | 2.87 | 2.90 | 220,410 |   |  			
            | 1/8/2018 | +0.12 / +4.26% | 2.90 | 3.00 | 2.89 | 2.94 | 2.94 | 2.94 | 141,210 |   |  
            | 1/5/2018 | -0.07 / -2.42% | 2.89 | 2.89 | 2.82 | 2.82 | 2.86 | 2.82 | 43,430 |   |  			
            | 1/4/2018 | +0.07 / +2.48% | 2.84 | 2.90 | 2.83 | 2.89 | 2.87 | 2.89 | 91,920 |   |  
            | 1/3/2018 | -0.05 / -1.74% | 2.89 | 2.89 | 2.82 | 2.82 | 2.86 | 2.82 | 149,530 |   |  			
            | 1/2/2018 | -0.03 / -1.03% | 2.90 | 2.90 | 2.86 | 2.87 | 2.88 | 2.87 | 19,600 |   |  
            | 12/29/2017 | 0.00 / 0.00% | 2.92 | 2.92 | 2.80 | 2.90 | 2.84 | 2.90 | 61,890 |   |  			
            | 12/28/2017 | +0.04 / +1.40% | 2.90 | 2.90 | 2.86 | 2.90 | 2.87 | 2.90 | 55,740 |   |  
            | 12/27/2017 | -0.05 / -1.72% | 2.90 | 2.91 | 2.86 | 2.86 | 2.89 | 2.86 | 63,070 |   |  |