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LONDON--(BUSINESS WIRE)-- Ap19 FORM 8.3 Amendment to sales 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 Barclays PLC. WILLIS TOWERS WATSON PLC ORD 22 February 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) 2,035,360 1.58% 383,076 0.30% (2) 153,127 0.12% 240,989 0.19% (3) 6,000 0.00% 6,000 0.00% 2,194,487 1.70% 630,065 0.49% (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 Ap20 1. DEALINGS (Note 4) (a) Purchases and sales Purchase 1 225.0000 USD Purchase 7 225.1828 USD Purchase 7 225.0786 USD Purchase 11 224.9400 USD Purchase 25 225.3900 USD Purchase 40 225.3600 USD Purchase 50 225.3800 USD Purchase 89 225.4496 USD Purchase 100 224.8600 USD Purchase 121 225.3205 USD Purchase 144 224.9165 USD Purchase 150 225.0266 USD Purchase 169 225.2630 USD Purchase 199 225.3590 USD Purchase 300 225.3500 USD Purchase 400 225.1587 USD Purchase 586 225.1299 USD Purchase 952 224.9192 USD Purchase 994 224.9456 USD Purchase 994 224.9455 USD Purchase 1,200 225.2399 USD Purchase 2,530 225.1243 USD Purchase 2,907 225.1740 USD Purchase 3,783 225.1634 USD Purchase 7,419 225.1151 USD Purchase 12,824 225.2428 USD Purchase 13,240 225.0212 USD Purchase 13,618 225.0062 USD Purchase 28,276 225.0324 USD Purchase 102,625 224.9004 USD Purchase 108,853 224.9000 USD Sale 1 225.2800 USD Sale 1 225.2600 USD Sale 2 225.1700 USD Sale 25 225.3900 USD Sale 49 224.9500 USD Sale 87 225.4600 USD Sale 100 224.9900 USD Sale 100 224.7300 USD Sale 100 224.8100 USD Sale 200 225.1900 USD Sale 238 224.7843 USD Sale 256 225.5798 USD Sale 294 224.8823 USD Sale 302 225.1451 USD Sale 437 225.1458 USD Sale 488 224.9858 USD Sale 493 224.9178 USD Sale 700 224.9721 USD Sale 710 225.1486 USD Sale 916 224.9789 USD Sale 952 224.9192 USD Sale 994 224.9455 USD Sale 1,037 224.9839 USD Sale 1,200 225.2399 USD Sale 1,369 224.9023 USD Sale 1,820 225.0701 USD Sale 3,124 225.1192 USD Sale 4,295 225.1032 USD Sale 4,927 224.9272 USD Sale 5,839 224.8999 USD Sale 8,326 224.9723 USD Sale 10,000 225.1619 USD Sale 10,352 225.1347 USD Sale 11,723 225.0187 USD Sale 12,669 224.9952 USD Sale 12,845 225.2718 USD Sale 102,555 224.9000 USD Sale 102,626 224.9004 USD (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) Ap21 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. None 25 Feb 2021 Large Holdings Regulatory Operations 020 3134 7213 Ap23 SUPPLEMENTAL FORM 8 IRISH TAKEOVER PANEL DISCLOSURE UNDER RULE 8.1 AND RULE 8.3 OF THE IRISH TAKEOVER PANEL ACT, 1997, TAKEOVER RULES, 2013 DETAILS OF OPEN POSITIONS (This form should be attached to Form 8.1(a) & (b)(i), Form 8.1(b)(ii) or Form 8.3, as appropriate) OPEN POSITIONS (Note 1) Call Options Purchased 6,000 220.0000 American Jul 16, 2021 Put Options Purchased -6,000 200.0000 American Jul 16, 2021 Notes 1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given. Full details of any existing agreements to purchase or to sell must also be given on this form. 2. For all prices and other monetary amounts, the currency must be stated. For full details of disclosure requirements, see Rule 8 of the Rules. If in doubt, consult the Panel.

Answer: FORM 8.3 - WILLIS TOWERS WATSON PLC Amendment