X0306 4 2023-02-09 0001140536 WILLIS TOWERS WATSON PLC WTW 0001629374 Bodnar Anne Donovan C/O WILLIS GROUP LIMITED 51 LIME STREET LONDON X0 EC3M 7DQ UNITED KINGDOM 1 Chief Administrative Officer Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 1299 257.2288 D 12865.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 470 256.9032 D 12395.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 700 255.01 D 11695.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 800 253.8725 D 10895.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 200 251.765 D 10695.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 1181 250.2767 D 9514.348 D Ordinary Shares, nominal value $0.000304635 per share 2023-02-09 4 S 0 350 249.4171 D 9164.348 D Ordinary Shares, nominal value $0.000304635 per share 26226.02 I The Anne D Bodnar Revocable Trust The sales reported in this Form 4 were pursuant to a Rule 10b5-1 trading plan adopted by the reporting person during an open trading window in a prior quarter. This transaction was executed in multiple trades at prices ranging from $257.15 to $257.94. 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. This transaction was executed in multiple trades at prices ranging from $256.09 to $257.00. 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. This transaction was executed in multiple trades at prices ranging from $254.67 to $255.41. 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. This transaction was executed in multiple trades at prices ranging from $253.34 to $254.05. 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. This transaction was executed in multiple trades at prices ranging from $251.28 to $252.25. 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. This transaction was executed in multiple trades at prices ranging from $250.17 to $251.01. 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. This transaction was executed in multiple trades at prices ranging from $249.04 to $249.92. 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. /s/ Anne D. Bodnar by Elaine Wiggins, Attorney-in-Fact (power of attorney previously filed) 2023-02-10