NORTHERN TRUST CORP — M&A Activity 2021

May 6, 2021

National Storage Mechanism | Additional information

RNS Number : 8245X

Northern Trust Corporation

06 May 2021

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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)	Northern Trust Corporation
Company dealt in	AON PLC
Class of relevant security to which the dealings being disclosed relate (Note 2)	Common Stock USD 0.0033
Date of dealing	5th May 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	3,438,021.00       1.49%
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell
Total	3,438,021.00       1.49%

Note: The difference in holdings from yesterday and today not explained by transactions, can be explained by stock transfers of 113 securities into the relevant accounts and 12 securities out of relevant accounts..

(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
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell
Total

Purchase/sale	Number Of relevant securities	Price per unit ($)
BUY	4	262.78

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1.       DEALINGS (Note 4)

(a)      Purchases and sales

Purchase/sale	Number Of relevant securities	Price per unit ($)
SELL	477	254.36
BUY	5	254.36
BUY	17	254.36
BUY	4	254.36
BUY	1	254.36
SELL	9	254.36
SELL	5	254.36
BUY	7	254.36
SELL	24	254.36
BUY	55	255.48
SELL	24	254.36
BUY	5	254.36
BUY	2	254.36
BUY	3	254.36
SELL	21	254.36
BUY	2707	254.36
SELL	763	254.36
SELL	47	255.24
BUY	93	254.91
BUY	4	254.91
BUY	20	254.91
BUY	13	254.91
BUY	12	254.91
BUY	8	254.91
BUY	19	254.89
BUY	12	254.78
BUY	14	254.78
BUY	12	254.78
BUY	52	254.9
SELL	4	255.269
SELL	12	255.269
BUY	16	254.78
BUY	15	254.9
BUY	12	254.9
BUY	93	254.91
BUY	4	254.91
BUY	20	254.91
BUY	13	254.91
BUY	10	254.7
BUY	12	254.91
BUY	8	254.91
BUY	19	254.89
BUY	14	254.78
BUY	16	254.78
BUY	12	254.78
BUY	12	254.78
SELL	47	255.24
BUY	52	254.9
SELL	4	255.27
SELL	12	255.27
BUY	15	254.9
BUY	12	254.9

(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)

(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)

(ii)      Exercising

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

(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)

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2.       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.

Is a Supplemental Form 8 attached? (Note 9)                                            NO

Date of disclosure	6th May 2021
Contact name	London Compliance Team
Telephone number	0207 982 2158 or 0207 982 3697
If a connected EFM, name of offeree/offeror with which connected
If a connected EFM, state nature of connection (Note 10)

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