X0306 4 2022-09-07 0001140536 WILLIS TOWERS WATSON PLC WTW 0001881781 Krasner Andrew Jay C/O WILLIS GROUP LIMITED 51 LIME STREET LONDON X0 EC3M 7DQ UNITED KINGDOM 1 Chief Financial Officer Ordinary Shares, nominal value $0.000304635 per share 2022-09-07 4 X 0 64 0 A 14958 D Ordinary Shares, nominal value $0.000304635 per share 2022-09-07 4 F 0 1758 204.92 D 13200 D Ordinary Shares, nominal value $0.000304635 per share 2022-09-07 4 S 0 1030 210.2621 D 2178 I Revocable Trust Dividend Equivalent Rights 2022-09-07 4 X 0 64 0 D Ordinary Shares, nominal value $0.000304635 per share 64 135.223 D Withholding of shares by Issuer incident to the tax payment related to the vesting and settlement of 4,467 restricted share units granted on September 7, 2021. Does not reflect a transfer of 2,709 shares to the reporting person's revocable trust following the vesting and settlement reported above. This transaction was executed in multiple trades at prices ranging from $210.21 to $210.28. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Reflects a transfer of 2,709 shares to the reporting person's revocable trust following the vesting and settlement reported above. The dividend equivalent rights accrued on the reporting person's time-based restricted share unit award and were credited in the form of additional restricted share units that vested and were payable at the same time as the underlying time-based restricted share units. Each dividend equivalent right is the economic equivalent of one WTW Ordinary Share. /s/ Andrew Krasner by Elaine Wiggins, Attorney-in-Fact (power of attorney previously filed) 2022-09-09