| 
                 
                    Closing price on 12/20/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.90 | 
                 
                
                    | High | 
                    2.00 | 
                 
                
                    | Low | 
                    1.90 | 
                     
                
                    | Volume | 
                    315,907 | 
                                 
                
                    | Split-adjusted Price | 
                    2.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACM Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                12/20/2016
             | 
            
                0.00 / 0.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.91
             |                     
            
                2.00
             |                                 
            
                315,907
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2016
             | 
            
                +0.10 / +5.26%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.90
             |                     
            
                2.00
             |                                 
            
                229,833
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/16/2016
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.91
             |                     
            
                1.90
             |                                 
            
                503,160
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2016
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                514,517
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2016
             | 
            
                0.00 / 0.00%
             |             
            
                1.80
             |           
            
                2.00
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.91
             |                     
            
                1.90
             |                                 
            
                447,150
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2016
             | 
            
                -0.10 / -5.00%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                895,430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/12/2016
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.01
             |                     
            
                2.00
             |                                 
            
                883,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/9/2016
             | 
            
                -0.10 / -4.55%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.10
             | 
            
                2.11
             |                     
            
                2.10
             |                                 
            
                449,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                798,750
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2016
             | 
            
                -0.10 / -4.35%
             |             
            
                2.20
             |           
            
                2.30
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.20
             |                     
            
                2.20
             |                                 
            
                1,062,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2016
             | 
            
                -0.10 / -4.17%
             |             
            
                2.40
             |           
            
                2.50
             |               
            
                2.20
             |                           
            
                2.30
             | 
            
                2.30
             |                     
            
                2.30
             |                                 
            
                1,162,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2016
             | 
            
                +0.20 / +9.09%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.38
             |                     
            
                2.40
             |                                 
            
                3,178,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/2/2016
             | 
            
                +0.20 / +10.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.10
             |                           
            
                2.20
             | 
            
                2.17
             |                     
            
                2.20
             |                                 
            
                911,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/1/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.03
             |                     
            
                2.00
             |                                 
            
                247,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/30/2016
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                463,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/29/2016
             | 
            
                +0.10 / +5.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.10
             | 
            
                2.00
             |                     
            
                2.10
             |                                 
            
                429,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/28/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                460,900
             |            
            
                 
             |                                       
         
    
        
            | 
                11/25/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.01
             |                     
            
                2.00
             |                                 
            
                394,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/24/2016
             | 
            
                -0.20 / -9.09%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.10
             |                     
            
                2.00
             |                                 
            
                623,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/23/2016
             | 
            
                +0.20 / +10.00%
             |             
            
                2.20
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.20
             | 
            
                2.12
             |                     
            
                2.20
             |                                 
            
                952,709
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/22/2016
             | 
            
                +0.10 / +5.26%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.99
             |                     
            
                2.00
             |                                 
            
                449,710
             |            
            
                 
             |                                       
         
    
        
            | 
                11/21/2016
             | 
            
                -0.10 / -5.00%
             |             
            
                2.00
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                1.90
             | 
            
                1.90
             |                     
            
                1.90
             |                                 
            
                334,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/18/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                260,009
             |            
            
                 
             |                                       
         
    
        
            | 
                11/17/2016
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.10
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                2.00
             |                     
            
                2.00
             |                                 
            
                1,036,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/16/2016
             | 
            
                -0.10 / -4.76%
             |             
            
                2.10
             |           
            
                2.10
             |               
            
                2.00
             |                           
            
                2.00
             | 
            
                2.10
             |                     
            
                2.00
             |                                 
            
                521,260
             |            
            
                 
             |                                       
         
    
        
            | 
                11/15/2016
             | 
            
                +0.10 / +5.00%
             |             
            
                2.10
             |           
            
                2.20
             |               
            
                2.00
             |                           
            
                2.10
             | 
            
                2.13
             |                     
            
                2.10
             |                                 
            
                1,310,219
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/14/2016
             | 
            
                +0.10 / +5.26%
             |             
            
                1.90
             |           
            
                2.00
             |               
            
                1.90
             |                           
            
                2.00
             | 
            
                1.90
             |                     
            
                2.00
             |                                 
            
                1,472,012
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2016
             | 
            
                +0.10 / +5.56%
             |             
            
                1.80
             |           
            
                1.90
             |               
            
                1.80
             |                           
            
                1.90
             | 
            
                1.85
             |                     
            
                1.90
             |                                 
            
                215,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/10/2016
             | 
            
                0.00 / 0.00%
             |             
            
                1.70
             |           
            
                1.90
             |               
            
                1.70
             |                           
            
                1.80
             | 
            
                1.80
             |                     
            
                1.80
             |                                 
            
                548,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/9/2016
             | 
            
                0.00 / 0.00%
             |             
            
                1.80
             |           
            
                1.80
             |               
            
                1.70
             |                           
            
                1.80
             | 
            
                1.71
             |                     
            
                1.80
             |                                 
            
                517,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |