| 
                 
                    Closing price on 8/8/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.00 | 
                 
                
                    | High | 
                    2.00 | 
                 
                
                    | Low | 
                    1.80 | 
                     
                
                    | Volume | 
                    631,730 | 
                                 
                
                    | Split-adjusted Price | 
                    1.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACM Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/8/2016
             | 
            
                -0.10 / -5.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.91
             |                     
            
                1.90
             |                                 
            
                631,730
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.96
             |                     
            
                2.00
             |                                 
            
                210,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2016
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.05
             |                     
            
                2.00
             |                                 
            
                706,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2016
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                552,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2016
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.03
             |                     
            
                2.00
             |                                 
            
                472,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2016
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.07
             |                     
            
                2.10
             |                                 
            
                463,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2016
             | 
            
                -0.20 / -9.09%
             |             
            
                2.00
             |           
            
                2.40
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.07
             |                     
            
                2.00
             |                                 
            
                2,594,320
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2016
             | 
            
                -0.20 / -8.33%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.20
             |                           
            
                2.20
             | 
            
                2.21
             |                     
            
                2.20
             |                                 
            
                284,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2016
             | 
            
                -0.20 / -7.69%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.40
             |                           
            
                2.40
             | 
            
                2.52
             |                     
            
                2.40
             |                                 
            
                1,759,230
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2016
             | 
            
                +0.20 / +8.33%
             |             
            
                2.50
             |           
            
                2.60
             |               
            
                2.50
             |                           
            
                2.60
             | 
            
                2.59
             |                     
            
                2.60
             |                                 
            
                2,264,910
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2016
             | 
            
                +0.20 / +9.09%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.10
             |                           
            
                2.40
             | 
            
                2.29
             |                     
            
                2.40
             |                                 
            
                3,684,930
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2016
             | 
            
                +0.20 / +10.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.15
             |                     
            
                2.20
             |                                 
            
                509,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2016
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                54,210
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2016
             | 
            
                +0.10 / +5.56%
             |             
            
                1.70
             |           
            
                1.90
             |               
            
                1.70
             |                           
            
                1.90
             | 
            
                1.77
             |                     
            
                1.90
             |                                 
            
                5,786,135
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2016
             | 
            
                -0.10 / -5.26%
             |             
            
                1.80
             |           
            
                1.80
             |               
            
                1.80
             |                           
            
                1.80
             | 
            
                1.80
             |                     
            
                1.80
             |                                 
            
                663,830
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2016
             | 
            
                -0.20 / -9.52%
             |             
            
                1.90
             |           
            
                1.90
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                1,141,203
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2016
             | 
            
                -0.20 / -8.70%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.10
             |                     
            
                2.10
             |                                 
            
                559,697
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2016
             | 
            
                -0.20 / -8.00%
             |             
            
                2.30
             |           
            
                2.30
             |               
            
                2.30
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                1,268,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2016
             | 
            
                -0.20 / -7.41%
             |             
            
                2.50
             |           
            
                2.90
             |               
            
                2.50
             |                           
            
                2.50
             | 
            
                2.55
             |                     
            
                2.50
             |                                 
            
                7,852,670
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2016
             | 
            
                -0.20 / -6.90%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.70
             |                           
            
                2.70
             | 
            
                2.70
             |                     
            
                2.70
             |                                 
            
                23,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2016
             | 
            
                -0.30 / -9.38%
             |             
            
                2.90
             |           
            
                2.90
             |               
            
                2.90
             |                           
            
                2.90
             | 
            
                2.90
             |                     
            
                2.90
             |                                 
            
                208,320
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2016
             | 
            
                -0.30 / -8.57%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.23
             |                     
            
                3.20
             |                                 
            
                765,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2016
             | 
            
                -0.10 / -2.78%
             |             
            
                3.60
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.45
             |                     
            
                3.50
             |                                 
            
                892,810
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2016
             | 
            
                +0.10 / +2.86%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.40
             |                           
            
                3.60
             | 
            
                3.49
             |                     
            
                3.60
             |                                 
            
                382,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2016
             | 
            
                -0.20 / -5.41%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.53
             |                     
            
                3.50
             |                                 
            
                801,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2016
             | 
            
                +0.10 / +2.78%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.60
             |                     
            
                3.70
             |                                 
            
                420,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2016
             | 
            
                0.00 / 0.00%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.61
             |                     
            
                3.60
             |                                 
            
                409,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2016
             | 
            
                -0.10 / -2.70%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.60
             |                           
            
                3.60
             | 
            
                3.70
             |                     
            
                3.60
             |                                 
            
                440,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2016
             | 
            
                0.00 / 0.00%
             |             
            
                3.70
             |           
            
                3.80
             |               
            
                3.70
             |                           
            
                3.70
             | 
            
                3.70
             |                     
            
                3.70
             |                                 
            
                422,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2016
             | 
            
                +0.10 / +2.78%
             |             
            
                3.60
             |           
            
                3.70
             |               
            
                3.60
             |                           
            
                3.70
             | 
            
                3.62
             |                     
            
                3.70
             |                                 
            
                117,800
             |  
            
                 
             |                                                              
             
    
         
    
    
 |