Form 8.3 - Aon plc

                                                FORM 8.3

IRISH TAKEOVER PANEL

DISCLOSURE UNDER RULE 8.3 OF THE IRISH TAKEOVER PANEL ACT, 1997, TAKEOVER RULES, 2013

DEALINGS BY PERSONS WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE

1. KEY INFORMATION

Name of person dealing (Note 1)	State Street Global Advisors & Affiliates
Company dealt in	Aon plc
Class of relevant security to which the dealings being disclosed relate (Note 2)	US$0.01 ordinary shares
Date of dealing	31st  March 2021

2. INTERESTS AND SHORT POSITIONS

(a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3)

	Long		Short
	Number	(%)	Number	(%)
(1) Relevant securities	9,291,401	4.10756%
(2) Derivatives (other than options)	N/A
(3) Options and agreements to purchase/sell	N/A
Total	9,291,401	4.10756%

(b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3)

Class of relevant security:	Long		Short
	Number	(%)	Number	(%)
(1) Relevant securities	N/A
(2) Derivatives (other than options)	N/A
(3) Options and agreements to purchase/sell	N/A
Total	N/A

3. DEALINGS (Note 4)

(a) Purchases and sales

Purchase/sale	Number of relevant securities	Price per unit (Note 5)
Purchase	100	230.11
Purchase	1,400	230.11
Purchase	1,100	230.11
Purchase	400	230.11
Purchase	400	230.11
Purchase	100	230.11
Purchase	200	230.11
Purchase	1,400	230.11
Purchase	15	230.11
Purchase	31,521	230.11
Purchase	16,766	230.11
Purchase	168	230.11
Purchase	120	230.11
Purchase	75	230.11
Purchase	222	230.11
Purchase	61	230.46
Purchase	75	230.11
Purchase	3,400	230.11
Sale	1,200	230.11
Sale	500	230.11
Sale	1,100	230.11
Sale	100	230.11
Sale	300	230.18
Sale	7,400	230.11
Sale	400	230.11
Sale	9,000	230.11
Sale	13,200	230.11
Sale	2,660	230.11
Sale	3,724	230.11
Sale	505	230.11
Sale	19	230.11
Sale	144	230.11
Sale	163	230.11
Sale	70	230.11
Sale	50	230.11
Sale	320	230.11
Sale	964	230.11
Sale	200	230.11

                                                                                                                                                                                    

 (b) Derivatives transactions (other than options transactions)

Product name, e.g. CFD	Nature of transaction (Note 6)	Number of relevant securities (Note 7)	Price per unit (Note 5)
N/A

                                                                                                                                                     
(c) Options transactions in respect of existing relevant securities

(i) Writing, selling, purchasing or varying

Product name, e.g. call option	Writing, selling, purchasing  varying etc.	Number of securities to which the option relates (Note 7)	Exercise price	Type, e.g. American, European etc.	Expiry date	Option money paid/received per unit (Note 5)
N/A

(ii) Exercising

Product name, e.g. call option	Number of securities	Exercise price per unit (Note 5)
N/A

(d) Other dealings (including transactions in respect of new securities) (Note 4)

Nature of transaction (Note 8)	Details	Price per unit (if applicable) (Note 5)
N/A

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated.

N/A

Is a Supplemental Form 8 attached? (Note 9)	NO
Date of disclosure	01st  April 2021
Contact name	Lionel Colaco
Telephone number	020 33956098
If a connected EFM, name of offeree/offeror with which connected	N/A
If a connected EFM, state nature of connection (Note 10)	N/A