Note 6 — AI Acceleration Plan

On July 28, 2026, the Board of Directors of WTW approved and authorized management to execute Propel, an artificial intelligence (‘AI’) acceleration plan (the ‘Plan’). The Plan will extend through December 31, 2028, and embed AI and automation across the enterprise. Supported by the Company's ongoing investments in AI, data and technology, including the acquisition of Newfront, the Plan is expected to enhance client service and create additional opportunities for growth as well as streamline core operating processes. The Company expects to generate approximately $400 million in annual cost savings and, after reinvesting approximately $50 million to support growth initiatives, to deliver approximately $350 million in net annual cost savings by the end of 2028. Approximately $625 million of cash costs are expected to be incurred as well as approximately $25 million in non-cash charges

through the end of 2028 in connection with the Plan, with the cash costs consisting principally of process automation and organizational transition costs, including process and organizational design costs, severance and separation-related costs and temporary retention costs, as well as costs associated with implementing AI systems and related technologies, including technology implementation, integration and certain contractor and vendor contract termination costs. An immaterial portion of these costs is expected to be capitalized.

Certain costs under the Plan are accounted for under ASC 420, Exit or Disposal Cost Obligation, and are included as restructuring costs in the condensed consolidated statements of comprehensive income. Other costs incurred under the Plan are included in transaction and program expenses and were $7 million for the three months ended September 30, 2026. Restructuring costs incurred under the Plan from commencement to September 30, 2026 consist of $14 million of asset impairment expense attributable to our R&B segment.