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APPENDIX 3 DISCLOSURE FORMS

FORM 8.1(a)&(b)(i)

IRISH TAKEOVER PANEL

DISCLOSURE UNDER RULE 8.1(a) AND (b)(i) OF THE IRISH TAKEOVER PANEL ACT, 1997, TAKEOVER RULES, 2013

DEALINGS BY OFFERORS, OFFEREES OR PARTIES ACTING IN CONCERT WITH THEM FOR THEMSELVES OR FOR DISCRETIONARY CLIENTS

1. KEY INFORMATION

Name of person dealing (Note 1)	Wilhelm Zeller
Company dealt in	Willis Towers Watson plc
Class of relevant security to which the dealings being disclosed relate (Note 2)	Ordinary Shares of $0.000304635 each
Date of dealing	11 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	8,470 ordinary shares
(2) Derivatives (other than options)	N/A
(3) Options and agreements to purchase/sell	605 RSUs - total amount granted on 11 May 2021 and vesting on earlier of May 11, 2022 and the Issuer's 2022 Annual General Meeting of Shareholders
Total	9,075 (0.007%)

(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

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3. DEALINGS (Note 4)

(a) Purchases and sales

Purchase/sale	Number of relevant securities	Price per unit (Note 5)

(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)

(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)
RSUs	Grant	605	N/A	N/A	N/A	N/A
RSUs	Withheld for tax	687	N/A	N/A	N/A	US$264.25
RSUs	Vesting	744	N/A	N/A	N/A	N/A

(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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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.

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

Date of disclosure	11 May 2021
Contact name	Cindy Hanna
Telephone number	+1 (212) 915-7994
Name of offeree/offeror with which acting in concert	Willis Towers Watson plc
Specify category and nature of acting in concert status	Director

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