[8-K] HANOVER INSURANCE GROUP, INC. Reports Material Event

Rhea-AI Filing Summary

The Hanover Insurance Group (THG)Exhibit 99.1 and Exhibit 99.2, respectively.

This 8-K provides access to the company’s Q3 2025 results materials and supporting data; the information is furnished rather than filed.

10/29/2025 - 05:04 PM

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 29, 2025

THE HANOVER INSURANCE GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware	1-13754	04-3263626
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
	440 Lincoln Street, Worcester, Massachusetts (Address of principal executive offices)	01653 (Zip Code)
	(508) 855-1000 Registrant’s telephone number, including area code:

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbols		Name of each exchange on which registered
Common Stock, $.01 par value		THG		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

The following information is being furnished under Item 2.02 – Results of Operations and Financial Condition. Such information, including the exhibits attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section.

On October 29, 2025, The Hanover Insurance Group, Inc. (the Company) issued a press release announcing its financial results for the quarter ended September 30, 2025. The release is furnished as Exhibit 99.1 hereto. Additionally, on October 29, 2025, the Company made available on its website unaudited financial information contained in its Financial Supplement for the period ended September 30, 2025. The supplement is furnished as Exhibit 99.2 hereto.

Item 9.01 Financial Statements and Exhibits.

(a) Not applicable.

(b) Not applicable.

(c) Not applicable.

(d) Exhibits.

The following exhibits are furnished herewith.

Exhibit 99.1	Press Release, dated October 29, 2025, announcing the Company’s financial results for the quarter ended September 30, 2025.
Exhibit 99.2	The Hanover Insurance Group, Inc. Unaudited Financial Supplement for the period ended September 30, 2025.
Exhibit 104	Cover Page Interactive Data File (embedded within the Inline XBRL document).

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Exhibit Index

Exhibit 99.1	Press Release, dated October 29, 2025, announcing the Company’s financial results for the quarter ended September 30, 2025.
Exhibit 99.2	The Hanover Insurance Group, Inc. Unaudited Financial Supplement for the period ended September 30, 2025.
Exhibit 104	Cover Page Interactive Data File (embedded within the Inline XBRL document).

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		The Hanover Insurance Group, Inc. (Registrant)
Date: October 29, 2025		By:	/s/ Jeffrey M. Farber
			Jeffrey M. Farber
			Executive Vice President and Chief Financial Officer

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FAQ

What did THG (The Hanover Insurance Group) announce in this 8-K?

THG furnished a press release announcing financial results for the quarter ended September 30, 2025, and an unaudited Financial Supplement.

Which exhibits contain THG’s Q3 2025 materials?

Exhibit 99.1 is the press release dated October 29, 2025; Exhibit 99.2 is the unaudited Financial Supplement for the period ended September 30, 2025.

Is the information furnished or filed?

The information is furnished under Item 2.02 and is not deemed filed for purposes of Section 18 of the Exchange Act.

What period do the results cover for THG (THG)?

The quarter ended September 30, 2025.

Where can investors access additional data from THG?

The unaudited Financial Supplement for the period ended September 30, 2025 was made available on the company’s website and furnished as Exhibit 99.2.

Who signed the report for THG and when?

Jeffrey M. Farber, Executive Vice President and Chief Financial Officer, on October 29, 2025.