The Hanover Insurance Group, Inc. Insider Trading Activity

Accepted by SEC EDGAR 08/05/2025 - 04:11 PM EDT Learn about SEC filing dates

Insider Trade Summary

Exercise and Sale: 5,626 shares ($279K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Lowsley Denise

Role Executive Vice President

Sold 5,626 shs ($946K)

Approx. gross sale proceeds $946K

Approx. exercise cost $667K

Approx. pre-tax spread $279K

Share of Position Sold 52.4%

Type	Security	Shares	Price	Value
Exercise	Common Stock Option (right to buy)	5,626	$0.00	$0.00
Exercise	Common Stock	5,626	$118.54	$667K
Sale	Common Stock	5,626	$168.15	$946K

Holdings After Transaction: Common Stock Option (right to buy) — 0 options (Direct); Common Stock — 5,119.028 shares (Direct)

Holdings Before and After: Common Stock Option (right to buy), 5,626 to 0 options (Direct); Common Stock, 5,119.028 to 5,119.028 shares (Direct)

Footnotes (2)

1. F1. Includes 73 shares acquired pursuant to The Hanover Insurance Group Inc.'s 2023 Employee Stock Purchase Plan on June 30, 2025.
2. F2. The option, representing the right to purchase a total of 5,626 shares, vested 1/3 on each of 2/28/21, 2/28/22 and 2/28/23.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lowsley Denise

(Last) (First) (Middle)

C/O THE HANOVER INSURANCE GROUP, INC.

440 LINCOLN STREET

(Street)

WORCESTER MA 01653

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HANOVER INSURANCE GROUP, INC. [ THG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/01/2025		M		5,626	A	$118.54	10,745.028(1)	D
Common Stock	08/01/2025		S		5,626	D	$168.15	5,119.028(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Common Stock Option (right to buy)	$118.54	08/01/2025		M			5,626	(2)	02/28/2030	Common Stock	5,626	$0	0	D

Explanation of Responses:

1. Includes 73 shares acquired pursuant to The Hanover Insurance Group Inc.'s 2023 Employee Stock Purchase Plan on June 30, 2025.

2. The option, representing the right to purchase a total of 5,626 shares, vested 1/3 on each of 2/28/21, 2/28/22 and 2/28/23.

	/s/ Lindsay L. Katz pursuant to Confirming Statement	08/05/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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