Ownership Submission
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 *
ZURAITIS MARITA
   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
(Last)
(First)
(Middle)
THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET		 3. Date of Earliest Transaction (Month/Day/Year)
05/03/2013
(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 05/03/2013   M(1)   54,250 A $ 48.46 127,774 D  
Common Stock 05/03/2013   F(1)   53,170 D $ 50.36 74,604 D  
Common Stock 05/03/2013   M(1)   50,000 A $ 34.19 124,604 D  
Common Stock 05/03/2013   F(1)   41,524 D $ 50.36 83,080 D  
Common Stock 05/03/2013   M(1)   22,500 A $ 42.15 105,580 D  
Common Stock 05/03/2013   F(1)   20,564 D $ 50.36 85,016 (2) D  

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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) $ 48.46 05/03/2013   M(1)     54,250   (3) 02/23/2017 Common Stock 54,250 $ 0 0 D  
Common Stock Option (right to buy) $ 34.19 05/03/2013   M(1)     50,000   (4) 02/23/2019 Common Stock 50,000 $ 0 0 D  
Comon Stock Option (right to buy) $ 42.15 05/03/2013   M(1)     22,500   (5) 02/26/2020 Common Stock 22,500 $ 0 22,500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ZURAITIS MARITA
THE HANOVER INSURANCE GROUP, INC.
440 LINCOLN STREET
WORCESTER, MA 01653		       Executive Vice President  

Signatures

 Walter H. Stowell pursuant to Confirming Statement   05/07/2013
**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) Ms. Zuraitis "net exercised" an aggregate of 126,750 options. Such options were granted in 2007, 2009 and 2010. A total of 115,258 shares were withheld by the Company to satisfy the exercise price and taxes associated with the exercises, resulting in a net issuance of 11,492 shares to Ms. Zuraitis.
(2) Does not include 28,984 shares held indirectly in a Rabbi Trust pursuant to deferral agreements.
(3) 25% of the options vested on 2/23/08, 25% of the options vested on 2/23/09, and the remaining 50% of the options vested on 2/23/10.
(4) 50% of the options vested on 2/23/12, and the remaining 50% of the options vested on 2/23/13.
(5) 50% of the options vested on 2/26/13 and the remaining options vest on 2/26/14.

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