HANOVER INSURANCE GROUP, INC.

For the period ended Dec 31, 2025. Filed Feb 20, 2026.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 20, 2026

THG$242.90-2.5%Stored close · as of Nov 6, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item	Description	Page
Part I
1	Business	3
1A	Risk Factors	18
1B	Unresolved Staff Comments	33
1C	Cybersecurity	33
2	Properties	34
3	Legal Proceedings	34
4	Mine Safety Disclosures	34
Part II
5	Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	35
6	Reserved	35
7	Management's Discussion and Analysis of Financial Condition and Results of Operations	36
7A	Quantitative and Qualitative Disclosures About Market Risk	64
8	Financial Statements and Supplementary Data	65
9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	114
9A	Controls and Procedures	114
9B	Other Information	115
9C	Disclosures Regarding Foreign Jurisdictions That Prevent Inspections	115
Part III
10	Directors, Executive Officers and Corporate Governance	115
11	Executive Compensation	117
12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	118
13	Certain Relationships and Related Transactions, and Director Independence	118
14	Principal Accounting Fees and Services	118
Part IV
15	Exhibits, Financial Statement Schedules	119
	Exhibits Index	120
	Signatures	123

Part I

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.

About this filing

Table of Contents

Part I