| 
                 
                    Closing price on 10/18/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    114.50 | 
                 
                
                    | High | 
                    115.00 | 
                 
                
                    | Low | 
                    112.70 | 
                     
                
                    | Volume | 
                    76,400 | 
                                 
                
                    | Split-adjusted Price | 
                    57.17 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/18/2021
             | 
            
                -2.30 / -2.00%
             |             
            
                114.50
             |           
            
                115.00
             |               
            
                112.70
             |                           
            
                112.70
             | 
            
                113.50
             |                     
            
                57.17
             |                                 
            
                76,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2021
             | 
            
                -1.70 / -1.46%
             |             
            
                115.50
             |           
            
                116.50
             |               
            
                113.00
             |                           
            
                114.40
             | 
            
                115.00
             |                     
            
                58.03
             |                                 
            
                120,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2021
             | 
            
                -0.70 / -0.60%
             |             
            
                116.00
             |           
            
                117.00
             |               
            
                115.00
             |                           
            
                115.70
             | 
            
                116.10
             |                     
            
                58.69
             |                                 
            
                45,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2021
             | 
            
                -1.60 / -1.37%
             |             
            
                116.00
             |           
            
                117.60
             |               
            
                115.00
             |                           
            
                115.20
             | 
            
                116.40
             |                     
            
                58.44
             |                                 
            
                81,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/12/2021
             | 
            
                -1.60 / -1.36%
             |             
            
                116.80
             |           
            
                117.60
             |               
            
                115.00
             |                           
            
                115.70
             | 
            
                116.80
             |                     
            
                58.69
             |                                 
            
                113,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/11/2021
             | 
            
                +0.60 / +0.51%
             |             
            
                116.00
             |           
            
                117.80
             |               
            
                115.50
             |                           
            
                117.40
             | 
            
                117.30
             |                     
            
                59.55
             |                                 
            
                78,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/8/2021
             | 
            
                -1.20 / -1.02%
             |             
            
                117.00
             |           
            
                117.40
             |               
            
                115.30
             |                           
            
                116.00
             | 
            
                116.80
             |                     
            
                58.84
             |                                 
            
                165,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/7/2021
             | 
            
                -0.90 / -0.76%
             |             
            
                116.00
             |           
            
                119.00
             |               
            
                116.00
             |                           
            
                116.80
             | 
            
                117.20
             |                     
            
                59.25
             |                                 
            
                89,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/6/2021
             | 
            
                -1.40 / -1.19%
             |             
            
                115.00
             |           
            
                118.50
             |               
            
                115.00
             |                           
            
                116.70
             | 
            
                117.70
             |                     
            
                59.20
             |                                 
            
                92,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/5/2021
             | 
            
                +0.10 / +0.08%
             |             
            
                118.00
             |           
            
                118.60
             |               
            
                117.00
             |                           
            
                118.40
             | 
            
                118.10
             |                     
            
                60.06
             |                                 
            
                73,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/4/2021
             | 
            
                -0.20 / -0.17%
             |             
            
                118.30
             |           
            
                118.90
             |               
            
                117.00
             |                           
            
                118.10
             | 
            
                118.30
             |                     
            
                59.91
             |                                 
            
                296,500
             |            
            
                 
             |                                       
         
    
        
            | 
                10/1/2021
             | 
            
                -0.60 / -0.51%
             |             
            
                118.00
             |           
            
                119.10
             |               
            
                116.00
             |                           
            
                117.70
             | 
            
                118.30
             |                     
            
                59.71
             |                                 
            
                115,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/30/2021
             | 
            
                +0.70 / +0.60%
             |             
            
                116.00
             |           
            
                119.40
             |               
            
                115.00
             |                           
            
                117.90
             | 
            
                118.30
             |                     
            
                59.81
             |                                 
            
                172,700
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2021
             | 
            
                -0.90 / -0.76%
             |             
            
                116.50
             |           
            
                117.90
             |               
            
                116.50
             |                           
            
                117.30
             | 
            
                117.20
             |                     
            
                59.50
             |                                 
            
                309,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2021
             | 
            
                -0.90 / -0.76%
             |             
            
                116.00
             |           
            
                119.90
             |               
            
                116.00
             |                           
            
                117.90
             | 
            
                118.20
             |                     
            
                59.81
             |                                 
            
                135,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/27/2021
             | 
            
                -1.40 / -1.17%
             |             
            
                119.00
             |           
            
                119.90
             |               
            
                118.00
             |                           
            
                118.20
             | 
            
                118.80
             |                     
            
                59.96
             |                                 
            
                67,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2021
             | 
            
                -0.80 / -0.67%
             |             
            
                110.00
             |           
            
                120.50
             |               
            
                102.00
             |                           
            
                118.90
             | 
            
                119.60
             |                     
            
                60.31
             |                                 
            
                51,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2021
             | 
            
                0.00 / 0.00%
             |             
            
                116.00
             |           
            
                120.00
             |               
            
                116.00
             |                           
            
                119.20
             | 
            
                119.70
             |                     
            
                60.47
             |                                 
            
                229,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2021
             | 
            
                -1.30 / -1.09%
             |             
            
                102.00
             |           
            
                125.40
             |               
            
                102.00
             |                           
            
                118.10
             | 
            
                119.20
             |                     
            
                59.91
             |                                 
            
                45,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2021
             | 
            
                0.00 / 0.00%
             |             
            
                119.00
             |           
            
                120.50
             |               
            
                118.00
             |                           
            
                119.70
             | 
            
                119.40
             |                     
            
                60.72
             |                                 
            
                55,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/20/2021
             | 
            
                -2.20 / -1.85%
             |             
            
                119.20
             |           
            
                120.50
             |               
            
                117.00
             |                           
            
                117.00
             | 
            
                119.70
             |                     
            
                59.35
             |                                 
            
                73,800
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2021
             | 
            
                +2.30 / +1.96%
             |             
            
                117.00
             |           
            
                130.00
             |               
            
                116.00
             |                           
            
                119.50
             | 
            
                119.20
             |                     
            
                60.62
             |                                 
            
                113,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2021
             | 
            
                +0.60 / +0.52%
             |             
            
                115.70
             |           
            
                117.80
             |               
            
                115.00
             |                           
            
                116.30
             | 
            
                117.20
             |                     
            
                59.00
             |                                 
            
                94,900
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |