X0306 4 2018-02-09 0001140536 WILLIS TOWERS WATSON PLC WLTW 0001688814 Gunn Joseph C/O WILLIS GROUP LIMITED 51 LIME STREET LONDON X0 EC3M 7DQ UNITED KINGDOM 1 Head of North America Restricted Share Unit 2018-02-09 4 A 0 3.9437 0 A Ordinary Shares, nominal value $0.000304635 per share 3.9437 3.9437 D Restricted Share Unit 2018-02-09 4 A 0 7.8616 152.14 A Ordinary Shares, nominal value $0.000304635 per share 7.8616 11.8053 D Vested shares under the Non-Qualified Stable Value Excess Plan for U.S. Employees ("the Plan") settle for Ordinary Shares, nominal value $0.000304635 per share, on a 1:1 basis on the first business day of the month on which the NASDAQ Stock Market is open for business following the earlier of (i) the date that is 6 months after the reporting person's separation from service and (ii) the date that is 30 days after the reporting person's death. Includes restricted share units acquired pursuant to the participant's deferral election under the Plan. Includes restricted share units credited to the participant's account by the Company pursuant to the Plan's accrual formula, net of the units acquired pursuant to the participant's deferral election under the Plan as described in footnote (2). /s/ Joseph Gunn by Elaine Wiggins, Attorney-in-Fact (power of attorney previously filed) 2018-02-13