| 10.1 | | Security and Asset Purchase Agreement, dated as of August 12, 2021, by and between Willis Towers Watson plc and Arthur J. Gallagher & Co. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by the Company on August 16, 2021). |
| 10.2 | | Second Amended and Restated Credit Agreement, dated as of October 6, 2021, among, Trinity Acquisition plc and its indirect subsidiaries, Willis North America Inc. and Willis Netherlands Holdings B.V., Willis Towers Watson Public Limited Company, the lenders party thereto and Barclays Bank PLC, as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by the Company on October 7, 2021). |
| 10.3 | | Second Amended and Restated Guaranty Agreement, dated as of October 6, 2021, among, Trinity Acquisition plc, Willis Towers Watson Public Limited Company, the other guarantors party thereto and Barclays Bank PLC, as Administrative Agent (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed by the Company on October 7, 2021). |
| 10.4 | | Offer Letter, dated as of August 26, 2021, by and between Willis Towers Watson US LLC and Andrew Krasner.*† |
| 10.5 | | Time-Based Restricted Share Unit Award Agreement, dated as of September 7, 2021, by and between the Company and Andrew Krasner. *† |
| 10.6 | | Termination Agreement, dated as of July 26, 2021, by and between Willis Towers Watson plc and Aon plc (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by the Company on July 26, 2021). |
| 22.1 | | List of Issuers and Guarantor Subsidiaries.* |
| 31.1 | | Certification of the Registrant’s Chief Executive Officer, John J. Haley, pursuant to Rule 13a-14 of the Securities Exchange Act of 1934.* |
| 31.2 | | Certification of the Registrant’s Chief Financial Officer, Andrew J. Krasner, pursuant to Rule 13a-14 of the Securities Exchange Act of 1934.* |
| 32.1 | | Certification of the Registrant’s Chief Executive Officer, John J. Haley, and Chief Financial Officer, Andrew J. Krasner, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.* |
| 101.INS | | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH | | Inline XBRL Taxonomy Extension Schema Document* |
| 101.CAL | | Inline XBRL Taxonomy Extension Calculation Linkbase Document* |
| 101.DEF | | Inline XBRL Taxonomy Extension Definition Linkbase Document* |
| 101.LAB | | Inline XBRL Taxonomy Extension Label Linkbase Document* |
| 101.PRE | | Inline XBRL Taxonomy Extension Presentation Linkbase Document* |
| 104 | | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)* |