NYSEAON
FormDescriptionDateFormat
S-8 POSPost-effective amendment to an S-8 filingOct 1, 2010Open Post-effective amendment to an S-8 filing in HTML.Open Post-effective amendment to an S-8 filing in DOC file.Open Post-effective amendment to an S-8 filing in PDF file.Open Post-effective amendment to an S-8 filing in XLS file.
424B5Form of prospectus disclosing information facts events covered in both forms 424B2 424B3Sep 9, 2010Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in HTML.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in DOC file.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in PDF file.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in XLS file.
424B5Form of prospectus disclosing information facts events covered in both forms 424B2 424B3Sep 7, 2010Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in HTML.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in DOC file.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in PDF file.Open Form of prospectus disclosing information facts events covered in both forms 424B2 424B3 in XLS file.
424B3Form of prospectus reflecting facts events constituting substantive change from last formAug 17, 2010Open Form of prospectus reflecting facts events constituting substantive change from last form in HTML.Open Form of prospectus reflecting facts events constituting substantive change from last form in DOC file.Open Form of prospectus reflecting facts events constituting substantive change from last form in PDF file.Open Form of prospectus reflecting facts events constituting substantive change from last form in XLS file.
S-4POS Post-effective amendment to an S-4EF filingJul 26, 2010Open POS Post-effective amendment to an S-4EF filing in HTML.Open POS Post-effective amendment to an S-4EF filing in DOC file.Open POS Post-effective amendment to an S-4EF filing in PDF file.Open POS Post-effective amendment to an S-4EF filing in XLS file.
Investor Relations Disclaimer

You are about to review presentations, reports, filings and/or other materials regarding Aon plc (NYSE: AON) that contain time-sensitive information. The information contained therein is only current as of the date thereof. Aon expressly disclaims any obligation to review, update or correct these materials after the date thereof. Aon may update, amend, supplement or otherwise alter the information contained in any such materials by subsequent presentations, reports, filings, or other means without notice.

Certain statements made on this web site or in materials accessed in or through this section of our web site are “forward-looking statements,” which are subject to risks and uncertainties, and Aon's actual results may differ (possibly materially) from those indicated in such statements. See Legal Notice for further information regarding such statements and additional disclaimers with respect to the materials and sites that you may access through the Investors section of our Web site.