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美国

证券交易委员会

华盛顿特区 20549

表格 8-K

当前报告

根据经修订的《1934年证券交易法》第13或15(d)条

报告日期（最早报告事件日期）：2026年 10月 28日

THE HANOVER INSURANCE GROUP, INC.

（注册人章程中指定的确切名称）

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n
特拉华州	1-13754	04-3263626
（州或其他司法管辖区注册地）	（委员会档案编号）	（美国国税局雇主识别号码）

	440 Lincoln Street，Worcester，Massachusetts （主要行政办公室地址）	01653 （邮政编码）
	(508) 855-1000 注册人的电话号码（含区号）：

如果本 8-K 表格申报旨在同时履行注册人在以下任何条款下的申报义务，请勾选相应方框：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
☐	根据《证券法》第425条（17 CFR 230.425）进行的书面通信
☐	根据《交易法》第14a-12条（17 CFR 240.14a-12）进行的征求材料
☐	根据《交易法》第14d-2(b)条（17 CFR 240.14d-2(b)）进行的开始前通信
☐	根据《交易法》第13e-4(c)条（17 CFR 240.13e-4(c)）进行的开始前通信

根据该法第12(b)条登记的证券：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n	\n
各类别名称		交易代码		上市交易所名称
普通股，面值 $.01		THG		纽约证券交易所

请勾选，说明注册人是否为《1933年证券法》第405条（本章§ 230.405）或《1934年证券交易法》第12b-2条（本章§ 240.12b-2）所定义的新兴成长型公司。

新兴成长型公司 ☐

如果属于新兴成长型公司，请勾选，说明注册人是否选择不使用《交易法》第13(a)条规定的延长过渡期，以遵守任何新的或修订后的财务会计准则。☐

第 2.02 项 \t经营业绩和财务状况。

以下信息根据第 2.02 项——经营业绩和财务状况提供。该等信息（包括随附的展品）不得视为已根据经修订的《1934年证券交易法》第18条“提交”，亦不受该条规定的责任约束。

2026年10月28日，The Hanover Insurance Group, Inc.（本公司）发布新闻稿，公布其截至2026年9月30日的季度财务业绩。该新闻稿作为本文件的展品99.1提供。此外，2026年10月28日，本公司在其网站上公布了其截至2026年9月30日止期间财务补充文件中的未经审计财务信息。该补充文件作为本文件的展品99.2提供。

第9.01项财务报表和附件。

\n \n \n \n \n \n \n

\n	\n
(a)	不适用。

\n \n \n \n \n \n \n

\n	\n
(b)	不适用。

\n \n \n \n \n \n \n

\n	\n
(c)	不适用。

\n \n \n \n \n \n \n

\n	\n
(d)	附件。

随附以下附件。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n

附件99.1	2026年10月28日发布的新闻稿，宣布公司截至2026年9月30日季度的财务业绩。

附件99.2	The Hanover Insurance Group, Inc.截至2026年9月30日期间的未经审计财务补充资料。

附件104	封面交互式数据文件（嵌入在Inline XBRL文档中）。

附件索引

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
附件99.1	2026年10月28日发布的新闻稿，宣布公司截至2026年9月30日季度的财务业绩。

附件99.2	The Hanover Insurance Group, Inc.截至2026年9月30日期间的未经审计财务补充资料。

附件104	封面交互式数据文件（嵌入在Inline XBRL文档中）。

签名

根据《1934年证券交易法》的要求，注册人已正式授权下述签署人代表其签署本报告。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n
		The Hanover Insurance Group, Inc. （注册人）

日期：2026年10月28日		签署人：	/s/ Jeffrey M. Farber
			Jeffrey M. Farber
			执行副总裁兼首席财务官

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