| 
                 
                    Closing price on 9/15/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    115.50 | 
                 
                
                    | High | 
                    116.90 | 
                 
                
                    | Low | 
                    112.00 | 
                     
                
                    | Volume | 
                    127,100 | 
                                 
                
                    | Split-adjusted Price | 
                    59.15 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/15/2021
             | 
            
                +0.70 / +0.60%
             |             
            
                115.50
             |           
            
                116.90
             |               
            
                112.00
             |                           
            
                116.60
             | 
            
                115.70
             |                     
            
                59.15
             |                                 
            
                127,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/14/2021
             | 
            
                +0.90 / +0.78%
             |             
            
                115.00
             |           
            
                116.50
             |               
            
                114.00
             |                           
            
                115.90
             | 
            
                115.90
             |                     
            
                58.79
             |                                 
            
                83,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/13/2021
             | 
            
                +0.70 / +0.61%
             |             
            
                114.00
             |           
            
                116.00
             |               
            
                113.00
             |                           
            
                114.70
             | 
            
                115.00
             |                     
            
                58.18
             |                                 
            
                96,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2021
             | 
            
                +5.30 / +4.88%
             |             
            
                111.00
             |           
            
                114.90
             |               
            
                109.30
             |                           
            
                114.00
             | 
            
                114.00
             |                     
            
                57.83
             |                                 
            
                145,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2021
             | 
            
                +2.90 / +2.73%
             |             
            
                106.50
             |           
            
                109.40
             |               
            
                106.00
             |                           
            
                109.30
             | 
            
                108.70
             |                     
            
                55.44
             |                                 
            
                101,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2021
             | 
            
                +0.80 / +0.76%
             |             
            
                105.50
             |           
            
                106.80
             |               
            
                105.30
             |                           
            
                106.50
             | 
            
                106.40
             |                     
            
                54.02
             |                                 
            
                44,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2021
             | 
            
                +0.40 / +0.38%
             |             
            
                106.00
             |           
            
                106.00
             |               
            
                104.50
             |                           
            
                105.80
             | 
            
                105.70
             |                     
            
                53.67
             |                                 
            
                34,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2021
             | 
            
                +0.30 / +0.29%
             |             
            
                105.30
             |           
            
                105.50
             |               
            
                104.00
             |                           
            
                105.30
             | 
            
                105.40
             |                     
            
                53.42
             |                                 
            
                43,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2021
             | 
            
                +0.70 / +0.67%
             |             
            
                105.00
             |           
            
                105.40
             |               
            
                104.80
             |                           
            
                105.40
             | 
            
                105.00
             |                     
            
                53.47
             |                                 
            
                77,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2021
             | 
            
                +2.20 / +2.12%
             |             
            
                105.00
             |           
            
                106.00
             |               
            
                104.00
             |                           
            
                106.00
             | 
            
                104.70
             |                     
            
                53.77
             |                                 
            
                54,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/30/2021
             | 
            
                +3.00 / +2.97%
             |             
            
                101.00
             |           
            
                105.00
             |               
            
                101.00
             |                           
            
                104.00
             | 
            
                103.80
             |                     
            
                52.76
             |                                 
            
                47,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2021
             | 
            
                -0.60 / -0.58%
             |             
            
                99.50
             |           
            
                102.00
             |               
            
                99.00
             |                           
            
                102.00
             | 
            
                101.00
             |                     
            
                51.74
             |                                 
            
                18,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2021
             | 
            
                -1.20 / -1.16%
             |             
            
                103.50
             |           
            
                103.50
             |               
            
                99.90
             |                           
            
                102.30
             | 
            
                102.60
             |                     
            
                51.89
             |                                 
            
                20,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2021
             | 
            
                -1.60 / -1.53%
             |             
            
                104.60
             |           
            
                104.90
             |               
            
                100.00
             |                           
            
                103.00
             | 
            
                103.50
             |                     
            
                52.25
             |                                 
            
                49,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2021
             | 
            
                -0.60 / -0.57%
             |             
            
                107.80
             |           
            
                107.80
             |               
            
                100.00
             |                           
            
                103.90
             | 
            
                104.60
             |                     
            
                52.71
             |                                 
            
                17,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                99.00
             |           
            
                108.90
             |               
            
                99.00
             |                           
            
                104.40
             | 
            
                104.50
             |                     
            
                52.96
             |                                 
            
                28,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2021
             | 
            
                -1.90 / -1.78%
             |             
            
                106.50
             |           
            
                106.90
             |               
            
                101.00
             |                           
            
                104.80
             | 
            
                104.40
             |                     
            
                53.16
             |                                 
            
                20,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2021
             | 
            
                -1.20 / -1.11%
             |             
            
                108.00
             |           
            
                108.80
             |               
            
                104.70
             |                           
            
                106.50
             | 
            
                106.70
             |                     
            
                54.02
             |                                 
            
                24,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/18/2021
             | 
            
                -2.00 / -1.83%
             |             
            
                108.00
             |           
            
                110.40
             |               
            
                106.50
             |                           
            
                107.00
             | 
            
                107.70
             |                     
            
                54.28
             |                                 
            
                55,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2021
             | 
            
                -1.10 / -0.99%
             |             
            
                109.80
             |           
            
                110.50
             |               
            
                106.50
             |                           
            
                109.60
             | 
            
                109.00
             |                     
            
                55.60
             |                                 
            
                98,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/16/2021
             | 
            
                -0.60 / -0.54%
             |             
            
                112.90
             |           
            
                112.90
             |               
            
                106.50
             |                           
            
                109.80
             | 
            
                110.70
             |                     
            
                55.70
             |                                 
            
                45,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2021
             | 
            
                -4.10 / -3.63%
             |             
            
                111.00
             |           
            
                116.90
             |               
            
                107.00
             |                           
            
                108.70
             | 
            
                110.40
             |                     
            
                55.14
             |                                 
            
                166,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2021
             | 
            
                -2.50 / -2.22%
             |             
            
                113.00
             |           
            
                114.00
             |               
            
                110.00
             |                           
            
                110.00
             | 
            
                112.80
             |                     
            
                55.80
             |                                 
            
                115,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2021
             | 
            
                +2.70 / +2.44%
             |             
            
                109.00
             |           
            
                114.90
             |               
            
                109.00
             |                           
            
                113.30
             | 
            
                112.50
             |                     
            
                57.47
             |                                 
            
                180,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2021
             | 
            
                -1.00 / -0.90%
             |             
            
                111.20
             |           
            
                111.40
             |               
            
                108.10
             |                           
            
                110.30
             | 
            
                110.60
             |                     
            
                55.95
             |                                 
            
                133,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/9/2021
             | 
            
                -5.70 / -4.87%
             |             
            
                115.00
             |           
            
                116.00
             |               
            
                108.00
             |                           
            
                111.40
             | 
            
                111.30
             |                     
            
                56.51
             |                                 
            
                135,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2021
             | 
            
                0.00 / 0.00%
             |             
            
                118.00
             |           
            
                118.00
             |               
            
                114.50
             |                           
            
                117.00
             | 
            
                117.10
             |                     
            
                59.35
             |                                 
            
                155,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2021
             | 
            
                -5.10 / -4.14%
             |             
            
                125.90
             |           
            
                125.90
             |               
            
                113.10
             |                           
            
                118.00
             | 
            
                117.00
             |                     
            
                59.86
             |                                 
            
                227,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2021
             | 
            
                +35.90 / +39.89%
             |             
            
                126.00
             |           
            
                126.00
             |               
            
                103.00
             |                           
            
                125.90
             | 
            
                123.10
             |                     
            
                63.86
             |                                 
            
                197,900
             |            
            
                 
             |                                       
         
    
         
    
    
 |