Dennis Francis Kerrigan - 01 Dec 2025 Form 4 Insider Report for HANOVER INSURANCE GROUP, INC. (THG)

Role: Executive Vice President
Signature: /s/ Lindsay L. Katz pursuant to Confirming Statement
Issuer symbol: THG
Transactions as of: 01 Dec 2025
Net transactions value: -$27,886
Form type: 4
Filing time: 03 Dec 2025, 16:12:12 UTC
Previous filing: 05 Nov 2025
Next filing: 29 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kerrigan Dennis Francis	Executive Vice President	C/O THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET, WORCESTER	/s/ Lindsay L. Katz pursuant to Confirming Statement	03 Dec 2025	0001799888

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	THG	Common Stock	Tax liability	$27,886	-150	-1.5%	$185.91	9,740	01 Dec 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects shares withheld from restricted stock unit awards to cover FICA and related income tax obligations for executives eligible for retirement vesting under the terms of such awards.