5 1 a2103259z5.htm 5
        FORM 5
o Check box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
o Form 3 Holdings Reported
o Form 4 Transactions Reported		   UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF
CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(h) of the Investment Company Act of 1940		  
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1.   Name and Address of Reporting Person*   2.   Issuer Name and Ticker or Trading Symbol   6.   Relationship of Reporting Person(s) to Issuer
(Check all applicable)
    Ryan   Patrick   G.       Aon Corporation (AOC)           X Director   X 10% Owner
 
           
    (Last)   (First)   (Middle)   3.   I.R.S Identification Number of Reporting Person, if an entity (voluntary)   4.   Statement for Month/Year           X     Officer
              (give title below)		            Other
              (specify below)
    c/o Aon Corporate Law Department, 8th Floor, 200 East Randolph Drive              
December 31, 2002		      
Chairman and Chief Executive Officer		    
 
 
     
(Street)           5.   If Amendment, Date of Original (Month/Year)   7.   Individual or Joint/Group Reporting
(check applicable line)
    X     Form Filed by One Reporting Person
             Form Filed by More than
    Chicago   Illinois   60601                                   One Reporting Person
    (City)   (State)   (Zip)                            
                Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.   Title of Security
(Instr. 3)		   2.   Transaction Date
(Month/ Day/ Year)		   2A.   Deemed Execution Date, if any
(Month/ Day/ Year)		   3.   Transaction Code
(Instr. 8)		   4.   Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		   5.   Amount of Securities Beneficially Owned at the end of Issuer's Fiscal Year   6.   Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		   7.   Nature of Indirect Beneficial Ownership
(Instr. 4)
                               
      (Instr. 3 and 4)                
                                        Amount   (A) or (D)   Price                        
    Common Stock       11/13/02               G(1)           9,240   A                            
    Common Stock       11/13/02               G(1)           9,240   D                            
    Common Stock       12/16/02               G(2)           127,633   D                            
    Common Stock       12/17/02               G(3)           166,000   D           11,038,695       I       By Spouse
    Common Stock       12/19/02               G(4)           138,000   D           13,865,652       D        
                                                        366,900       I       By ESOP Account and Savings Plan
                                                        2,039,298       I       By Spouse as Trustee
                                                                         
                                                                         
                                                                         
                                                                         

*If the form is filed by more than one reporting person, see Instruction 4(b)(v).

FORM 5 (Continued)   Table II — Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1.   Title of Derivative Security
(Instr. 3)		   2.   Conversion or Exercise Price of Derivative Security   3.   Transaction Date (Month/Day/Year)   3A.   Deemed Execution Date, if any (Month/Day/Year)   4.   Transaction Code
(Instr. 8)		   5.   Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		   6.   Date Exercisable and
Expiration Date
(Month/Day/Year)
                               
 
                                    Code   V       (A)   (D)       Date
Exercisable		   Expiration Date
    Stock Option (Right to Buy)       $36.8750       4/22/02               A           250,000           (5)   4/22/12
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
7.   Title and Amount of Underlying Securities
(Instr. 3 and 4)		   8.   Price of Derivative Security
(Instr. 5)		   9.   Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		   10.   Ownership Form of Derivative Securities: Direct (D) or Indirect (I) (Instr. 4)   11.   Nature of Indirect Beneficial Ownership
(Instr. 4)
   
                               
    Title   Amount or Number of Shares                                
    Common Stock   250,000               250,000       D        
                                            
                                            
                                            
                                            
                                            
                                            
                                            
                                            
                                            

Explanation of Responses:

(1)
Shares transferred as a gift to the reporting person's living trust by the living trust of the reporting person's spouse.

(2)
Shares disposed of as gifts to public charities by the reporting person's living trust.

(3)
Shares disposed of as a gift by the living trust of the reporting person's spouse to a charitable foundation controlled by the reporting person and his spouse.

(4)
Shares disposed of as a gift by the reporting person's living trust to a charitable foundation controlled by the reporting person and his spouse.

(5)
Shares vest in accordance with the Aon Stock Incentive Plan, as follows: 33% of shares vest on each of 4/22/04 and 4/22/06 and 34% of the shares vest on 4/22/05.

/s/ Patrick G. Ryan   2/11/03
**Signature of Reporting Person		  
Date

**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure.

http://www.sec.gov/divisions/corpfin/forms/form5.htm
Last update: 09/03/2002