As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  5/9/24  Notebaert Richard C               4          Director²   1:4K   Aon plc                           Donnelley … Solutions/FA 
  5/7/24  Knight Lester B                   4          Director²   1:12K  Aon plc                           Donnelley … Solutions/FA 
 4/29/24  Aon plc                           ARS        12/31/23    1:1.3M                                   Donnelley … Solutions/FA 
 4/29/24  Aon plc                           DEFA14A                1:48K                                    Donnelley … Solutions/FA 
 4/29/24  Aon plc                           DEF 14A     6/21/24   11:7.2M                                   Donnelley … Solutions/FA 
 4/26/24  Aon plc                           10-Q        3/31/24   93:8.1M                                   Workiva Inc Wde… FA01/FA 
 4/26/24  Aon plc                           8-K:2,9     4/26/24   12:771K                                   Workiva Inc Wde… FA01/FA 
 4/25/24  Aon plc                           8-K:7,9     4/25/24   13:417K                                   Donnelley … Solutions/FA 
 4/23/24‡ Aon plc                           EFFECT      4/23/24    1:2K                                     SEC #5                   
 4/23/24  Aon plc                           424B3                  1:1.7M                                   Donnelley … Solutions/FA 
 4/19/24  Aon plc                           8-K:7       4/19/24   11:341K                                   Donnelley … Solutions/FA 
 4/19/24  Aon plc                           S-4/A                  3:2M                                     Donnelley … Solutions/FA 
 4/19/24  Aon plc                           8-K:1,9     4/16/24   14:2.6M                                   Cravath Swaine & … 01/FA 
 4/17/24  Aon plc                           10-K/A     12/31/23   14:3.3M                                   Donnelley … Solutions/FA 
 4/16/24  Aon plc                           8-K:7,9     4/15/24   12:430K                                   Cravath Swaine & … 01/FA 
  4/3/24  Aon plc                           8-K:5,9      4/1/24   12:342K                                   Donnelley … Solutions/FA 
  4/2/24  Aon plc                           8-K:7,9      4/2/24   12:423K                                   Cravath Swaine & … 01/FA 
 3/29/24  Aon plc                           S-4/A                  1:1.8M                                   Donnelley … Solutions/FA 
 3/27/24  Aon plc                           8-K:5,9     3/21/24   12:410K                                   Donnelley … Solutions/FA 
 3/19/24  Neller Michael                    4          Officer²    1:5K   Aon plc                           Donnelley … Solutions/FA 

____________
‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:  -K
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	10-K	Annual Report — Form 10-K.
	10-Q	Quarterly Report — Form 10-Q.
	424B3	Prospectus – New Facts or Events.
	ARS	Annual Report to Security Holders.
	DEF 14A	Definitive Proxy Statement — Schedule 14A.
	DEFA14A	Definitive Additional Proxy Soliciting Material — Schedule 14A.
	EFFECT	SEC Notice of Effectiveness.
	S-4	Registration Statement – Securities for a Merger — Form S-4.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.