X0306 4 2015-09-11 0001470215 Towers Watson & Co. TW 0001237783 MILLAY ROGER F 901 N. GLEBE ROAD ARLINGTON VA 22203 1 VP & Chief Financial Officer Stock Option- Right to Buy 120.58 2015-09-11 4 A 0 31924 0 A 2018-07-01 2022-09-10 Class A Common Stock 31924 31924 D The option vests in full on July 1, 2018, subject to the reporting person's continued service with the Issuer or any subsidiary through such vesting date. The option may be exercised at any time on or after the date of vesting until September 10, 2022, unless earlier terminated in accordance with the terms of the Towers Watson & Co. 2009 Long Term Incentive Plan or upon termination of the reporting person's service. /s/ Neil Falis, attorney-in-fact for Mr. Millay 2015-09-15