Hanover Insurance EVP Lee sells 9,946 shares

The two reported sale tranches had weighted-average prices of $248.98 and $249.69, while option exercise prices ranged from $115.35 to $139.51.

Available on EDGAR 11/05/2026 - 04:10 PM EST Accepted by SEC EDGAR 11/05/2026 - 04:10 PM EST

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Rhea-AI Filing Summary

Hanover Insurance Group, Inc. Executive Vice President Willard T. Lee exercised four common-stock options on November 4, 2026, covering 703 shares at $117.22, 2,598 at $118.54, 3,579 at $115.35 and 3,066 at $139.51. He also sold 7,636 common shares at a weighted average price of $248.98 and 2,310 at a weighted average price of $249.69. The corresponding common-stock acquisition entries list 703, 2,598, 3,579 and 3,006 shares; the last entry differs from the related option record's 3,066 underlying shares.

The reported sale prices were weighted averages: the 7,636-share sale had prices ranging from $248.52 to $249.48, and the 2,310-share sale ranged from $249.53 to $249.81. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Exercise and Sale: 9,946 shares ($1.25M approx. pre-tax spread)

Exercise and Sale 10 txns

Insider Lee Willard T

Role Executive Vice President

Sold 9,946 shs ($2.48M)

Approx. gross sale proceeds $2.48M

Approx. exercise cost $1.23M

Approx. pre-tax spread $1.25M

Type	Security	Shares	Price	Value
Exercise	Common Stock Option (right to buy) ^F3	703	$0.00	$0.00
Exercise	Common Stock Option (right to buy) ^F4	2,598	$0.00	$0.00
Exercise	Common Stock Option (right to buy) ^F5	3,579	$0.00	$0.00
Exercise	Common Stock Option (right to buy) ^F6	3,066	$0.00	$0.00
Exercise	Common Stock	703	$117.22	$82K
Exercise	Common Stock	2,598	$118.54	$308K
Exercise	Common Stock	3,579	$115.35	$413K
Exercise	Common Stock	3,006	$139.51	$419K
Sale	Common Stock ^F1	7,636	$248.98	$1.90M
Sale	Common Stock ^F2	2,310	$249.69	$577K

Holdings After Transaction: Common Stock Option (right to buy) — 0 contracts (Direct); Common Stock — 6,003.846 shares (Direct)

Holdings Before and After: Common Stock Option (right to buy), 9,946 to 0 contracts (Direct)

Footnotes (6)

F1. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $248.52 to $249.48. The Reporting Person undertakes to provide The Hanover Insurance Group, Inc. ("THG"), any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
F2. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $249.53 to $249.81. The Reporting Person undertakes to provide THG, any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
F3. The option, representing the right to purchase a total of 2,111 shares, vested 1/3 on each of 3/5/2020, 3/5/2021 and 3/5/2022.
F4. The option, representing the right to purchase a total of 3,897 shares, vested 1/3 on each of 2/28/2021, 2/28/2022 and 2/28/2023.
F5. The option, representing the right to purchase a total of 3,579 shares, vested 1/3 on each of 2/26/2022, 2/26/2023 and 2/26/2024.
F6. The option, representing the right to purchase a total of 3,066 shares, vested 1/3 on each of 2/28/2023, 2/28/2024 and 2/28/2025.

Key Figures

Option shares exercised: 703 shares Option shares exercised: 2,598 shares Option shares exercised: 3,579 shares +3 more

6 metrics

Option shares exercised 703 shares Exercise price $117.22 per share; expiration March 5, 2029; November 4, 2026 transaction

Option shares exercised 2,598 shares Exercise price $118.54 per share; expiration February 28, 2030; November 4, 2026 transaction

Option shares exercised 3,579 shares Exercise price $115.35 per share; expiration February 26, 2031; November 4, 2026 transaction

Option shares exercised 3,066 shares Exercise price $139.51 per share; expiration February 28, 2032; November 4, 2026 transaction

Shares sold 7,636 shares Weighted average price $248.98 per share; reported price range $248.52 to $249.48; November 4, 2026

Shares sold 2,310 shares Weighted average price $249.69 per share; reported price range $249.53 to $249.81; November 4, 2026

Key Terms

weighted average price, vested 1/3, right to purchase

3 terms

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

vested 1/3 financial

"vested 1/3 on each of 3/5/2020, 3/5/2021 and 3/5/2022"

right to purchase financial

"The option, representing the right to purchase a total of 2,111 shares"

FAQ

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How many THG shares did Willard T. Lee sell, and at what prices?

On November 4, 2026, Executive Vice President Willard T. Lee reported sales of 7,636 shares at a $248.98 weighted average and 2,310 shares at a $249.69 weighted average. The respective price ranges were $248.52 to $249.48 and $249.53 to $249.81. No Rule 10b5-1 plan is reported.

What options did THG Executive Vice President Willard T. Lee exercise?

On November 4, 2026, he exercised options covering 703, 2,598, 3,579 and 3,066 shares at respective exercise prices of $117.22, $118.54, $115.35 and $139.51. Their stated expiration dates are March 5, 2029, February 28, 2030, February 26, 2031 and February 28, 2032. A common-stock acquisition entry shows 3,006 shares for the fourth option.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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^*

Lee Willard T

(Last)

(First)

(Middle)

C/O THE HANOVER INSURANCE GROUP, INC.

440 LINCOLN STREET

(Street)

WORCESTER

MASSACHUSETTS

01653

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	11/04/2026		M		703	A	$117.22	6,706.846	D
Common Stock	11/04/2026		M		2,598	A	$118.54	9,304.846	D
Common Stock	11/04/2026		M		3,579	A	$115.35	12,883.846	D
Common Stock	11/04/2026		M		3,006	A	$139.51	15,949.846	D
Common Stock	11/04/2026		S		7,636	D	$248.98⁽¹⁾	8,313.846	D
Common Stock	11/04/2026		S		2,310	D	$249.69⁽²⁾	6,003.846	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Option (right to buy)	$117.22	11/04/2026		M			703	⁽³⁾	03/05/2029	Common Stock	703	$0	0	D
Common Stock Option (right to buy)	$118.54	11/04/2026		M			2,598	⁽⁴⁾	02/28/2030	Common Stock	2,598	$0	0	D
Common Stock Option (right to buy)	$115.35	11/04/2026		M			3,579	⁽⁵⁾	02/26/2031	Common Stock	3,579	$0	0	D
Common Stock Option (right to buy)	$139.51	11/04/2026		M			3,066	⁽⁶⁾	02/28/2032	Common Stock	3,066	$0	0	D

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $248.52 to $249.48. The Reporting Person undertakes to provide The Hanover Insurance Group, Inc. ("THG"), any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

2. The price reported in Column 4 is a weighted average price. The shares were sold at multiple prices ranging from $249.53 to $249.81. The Reporting Person undertakes to provide THG, any security holder of THG, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

3. The option, representing the right to purchase a total of 2,111 shares, vested 1/3 on each of 3/5/2020, 3/5/2021 and 3/5/2022.

4. The option, representing the right to purchase a total of 3,897 shares, vested 1/3 on each of 2/28/2021, 2/28/2022 and 2/28/2023.

5. The option, representing the right to purchase a total of 3,579 shares, vested 1/3 on each of 2/26/2022, 2/26/2023 and 2/26/2024.

6. The option, representing the right to purchase a total of 3,066 shares, vested 1/3 on each of 2/28/2023, 2/28/2024 and 2/28/2025.

	/s/ Lindsay L. Katz pursuant to Confirming Statement	11/05/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR