HANOVER INSURANCE GROUP, INC.

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations is intended to assist readers in understanding the consolidated results of operations and financial condition of The Hanover Insurance Group, Inc. and its subsidiaries (“THG”) for the years ended December 31, 2025 and 2024. This discussion and analysis includes comparative information between 2025 and 2024. Comparisons between 2024 and 2023 have been omitted from this Annual Report on Form 10-K; however, these comparisons may be found in Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in our 2024 Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on February 24, 2025. This discussion should also be read in conjunction with the Consolidated Financial Statements and related footnotes included elsewhere herein.

Consolidated results of operations and financial condition are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). Results of operations include the accounts of The Hanover Insurance Company (“Hanover Insurance”) and Citizens Insurance Company of America (“Citizens”), our principal property and casualty companies, and certain other insurance and non-insurance subsidiaries. Our results of operations also include the results of our discontinued operations, consisting of our former accident and health insurance business, as well as our former Chaucer business.

The following discussion contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. When used in this discussion and analysis, words such as: “believes,” “anticipates,” “expects,” “projections,” “outlook,” “should,” “could,” “plan,” “guidance,” “likely,” “on track to,” “potential,” “continue,” “targeted,” “designed,” and similar expressions are intended to identify forward-looking statements. Forward-looking statements by their nature address matters that are, to different degrees, uncertain. We caution readers that accuracy with respect to forward-looking projections is difficult and subject to risks and uncertainties. Those risks and uncertainties, in some cases, have affected, and in the future could affect, our actual results and could cause our actual results to differ materially from historical results and from those expressed in any of our forward-looking statements. For important factors that could cause actual results to differ materially from those contained in forward-looking statements, see “Risk Factors” in Part I – Item 1A.