| 
                 
                    Closing price on 5/30/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    0.60 | 
                 
                
                    | High | 
                    0.60 | 
                 
                
                    | Low | 
                    0.40 | 
                     
                
                    | Volume | 
                    347,300 | 
                                 
                
                    | Split-adjusted Price | 
                    0.50 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACM Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/30/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.40
             |                           
            
                0.50
             | 
            
                0.51
             |                     
            
                0.50
             |                                 
            
                347,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2019
             | 
            
                -0.10 / -16.67%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                159,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.59
             |                     
            
                0.60
             |                                 
            
                114,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2019
             | 
            
                +0.10 / +20.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                43,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                1,546,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                137,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.51
             |                     
            
                0.50
             |                                 
            
                54,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/21/2019
             | 
            
                -0.10 / -16.67%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.51
             |                     
            
                0.50
             |                                 
            
                24,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/20/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.55
             |                     
            
                0.60
             |                                 
            
                42,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2019
             | 
            
                +0.10 / +20.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                64,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2019
             | 
            
                -0.10 / -16.67%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.54
             |                     
            
                0.50
             |                                 
            
                81,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                94,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.57
             |                     
            
                0.60
             |                                 
            
                138,800
             |            
            
                 
             |                                       
         
    
        
            | 
                5/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.53
             |                     
            
                0.60
             |                                 
            
                347,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.70
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                364,600
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2019
             | 
            
                -0.10 / -14.29%
             |             
            
                0.70
             |           
            
                0.70
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.63
             |                     
            
                0.60
             |                                 
            
                273,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2019
             | 
            
                +0.10 / +16.67%
             |             
            
                0.70
             |           
            
                0.70
             |               
            
                0.50
             |                           
            
                0.70
             | 
            
                0.65
             |                     
            
                0.70
             |                                 
            
                325,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.70
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                462,101
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2019
             | 
            
                +0.10 / +20.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.50
             |                           
            
                0.60
             | 
            
                0.56
             |                     
            
                0.60
             |                                 
            
                694,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.50
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2019
             | 
            
                -0.10 / -16.67%
             |             
            
                0.60
             |           
            
                0.70
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.56
             |                     
            
                0.50
             |                                 
            
                525,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.60
             |           
            
                0.60
             |               
            
                0.60
             |                           
            
                0.60
             | 
            
                0.60
             |                     
            
                0.60
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2019
             | 
            
                +0.10 / +20.00%
             |             
            
                0.50
             |           
            
                0.60
             |               
            
                0.40
             |                           
            
                0.60
             | 
            
                0.57
             |                     
            
                0.60
             |                                 
            
                1,938,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.50
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.50
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                0.50
             |           
            
                0.50
             |               
            
                0.50
             |                           
            
                0.50
             | 
            
                0.50
             |                     
            
                0.50
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |