0001179110-12-003766.txt : 20120228 0001179110-12-003766.hdr.sgml : 20120228 20120228185254 ACCESSION NUMBER: 0001179110-12-003766 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120226 FILED AS OF DATE: 20120228 DATE AS OF CHANGE: 20120228 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Case Gregory C CENTRAL INDEX KEY: 0001322803 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-07933 FILM NUMBER: 12649450 MAIL ADDRESS: STREET 1: C/O AON CORPORATE LAW DEPT STREET 2: 200 EAST RANDOLPH ST, 8TH FL CITY: CHICAGO STATE: IL ZIP: 60601 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AON CORP CENTRAL INDEX KEY: 0000315293 STANDARD INDUSTRIAL CLASSIFICATION: INSURANCE AGENTS BROKERS & SERVICES [6411] IRS NUMBER: 363051915 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 200 EAST RANDOLPH STREET CITY: CHICAGO STATE: IL ZIP: 60601 BUSINESS PHONE: 3123811000 MAIL ADDRESS: STREET 1: 200 EAST RANDOLPH STREET CITY: CHICAGO STATE: IL ZIP: 60601 FORMER COMPANY: FORMER CONFORMED NAME: COMBINED INTERNATIONAL CORP DATE OF NAME CHANGE: 19870504 4 1 edgar.xml FORM 4 - X0304 4 2012-02-26 0 0000315293 AON CORP AON 0001322803 Case Gregory C AON CORPORATION - CORPORATE LAW DEPT 200 EAST RANDOLPH STREET, 8TH FLOOR CHICAGO IL 60601 1 1 0 0 President & CEO Common Stock 2012-02-26 4 M 0 8549 A 567742 D Common Stock 2012-02-26 4 F 0 3544 47.53 D 564198 D Restricted Stock Unit Award (Right to Receive) 2012-02-26 4 M 0 8549 0 D 2012-02-26 2012-02-26 Common Stock 8549 8548 D Shares of common stock acquired upon the vesting of a restricted stock unit award. Shares of common stock withheld by the issuer for the payment of withholding taxes in connection with the vesting of a restricted stock unit award. The restricted stock unit award converts to shares of common stock on a 1-for-1 basis. /s/ Matthew M. Rice - Matthew M. Rice pursuant to a power of attorney from Gregory C. Case 2012-02-28