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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * EPPINGER FREDERICK H   2. Issuer Name and Ticker or Trading Symbol HANOVER INSURANCE GROUP, INC. [THG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN ST 3. Date of Earliest Transaction (Month/Day/Year) 05/14/2013 (Street) WORCESTER, MA 01653 4. If Amendment, Date 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 (City) (State) (Zip) 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 05/14/2013   M(1)   69,700 A $ 23.58 206,152 D   Common Stock 05/14/2013   F(1)   49,901 D $ 51.04 156,251 D (2)

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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 Underlying Securities (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 of Derivative Security: 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)

$ 23.58

05/14/2013

M(1)

69,700

(3)

08/28/2013

Common Stock

69,700

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
EPPINGER FREDERICK H THE HANOVER INSURANCE GROUP, INC. 440 LINCOLN ST WORCESTER, MA 01653	X		President & CEO

Signatures

Walter H. Stowell pursuant to Confirming Statement		05/15/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Mr. Eppinger "net exercised" 69,700 options. The options were granted to Mr. Eppinger in 2003 when he joined the Company, and were scheduled to expire in August 2013. A total of 49,901 shares were withheld by the Company to satisfy the exercise price and taxes associated with the exercise, resulting in a net issuance of 19,799 shares to, and held by, Mr. Eppinger.
(2)	Does not include 160,362 shares held indirectly in a Rabbi Trust pursuant to deferral agreements.
(3)	25% of the options vested on 8/28/04, 25% of the options vested on 8/28/05 and the remaining 50% of the options vested on 8/28/06.

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