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 *
BARNES WARREN E.
   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)
SVP & Princpl. Accntg. Officer
(Last)
(First)
(Middle)
C/O THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET		 3. Date of Earliest Transaction (Month/Day/Year)
01/25/2019
(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 01/25/2019   A(1)   36.541 A $ 0 4,712.673 (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) $ 79.33 (3)               (4) 02/23/2026 Common Stock 790 (3)   790 (3) D  
Common Stock Option (right to buy) $ 87.43 (5)               (6) 02/24/2027 Common Stock 1,987 (5)   1,987 (5) D  
Common Stock Option (right to buy) $ 106.01 (7)               (8) 02/27/2028 Common Stock 2,018 (7)   2,018 (7) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BARNES WARREN E.
C/O THE HANOVER INSURANCE GROUP, INC.
440 LINCOLN STREET
WORCESTER, MA 01653		       SVP & Princpl. Accntg. Officer  

Signatures

 /s/ Matthew R. Frascella pursuant to Confirming Statement   01/28/2019
**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) Grant of restricted stock units under the Issuer's 2014 Long-Term Incentive Plan upon the accrual of dividend rights associated with restricted stock units originally granted on 2/27/18 as a result of the payment of a $4.75 special dividend on January 25, 2019 to all shareholders of record on January 10, 2019 that was announced on December 30, 2018 (the "Special Dividend"). Such units vest on the third anniversary of the date of grant of the underlying restricted stock units.
(2) Includes 75 shares acquired by an automatic adjustment to previously granted time-based restricted stock unit awards on January 9, 2019 pursuant to the terms specified in the awards to reflect the Special Dividend.
(3) Option award previously granted by the Issuer on February 23, 2016. On January 9, 2019, pursuant to the terms specified in the award, the exercise price of this award was automatically adjusted from $82.74 to $79.33, and the number of shares underlying the award was automatically adjusted from 757 to 790 to reflect the Special Dividend.
(4) A third of the original award vested on each of the first two anniversaries of the date of grant, and the vested portions were subsequently exercised. The portion of the award shown as remaining outstanding on this Form 4 will vest on the third anniversary of the date of grant.
(5) Option award previously granted by the Issuer on February 24, 2017. On January 9, 2019, pursuant to the terms specified in the award, the exercise price of this award was automatically adjusted from $91.19 to $87.43, and the number of shares underlying the award was automatically adjusted from 1,905 to 1,987 to reflect the Special Dividend.
(6) A third of the original award vested on the first anniversary of the date of grant, and the vested portion was subsequently exercised. The portion of the award shown as remaining outstanding on this Form 4 will vest in two substantially equal installments on each of the second and third anniversaries of the date of grant.
(7) Option award previously granted by the Issuer on February 27, 2018. On January 9, 2019, pursuant to the terms specified in the award, the exercise price of this award was automatically adjusted from $110.57 to $106.01, and the number of shares underlying the award was automatically adjusted from 1,935 to 2,018 to reflect the Special Dividend.
(8) A third of the award will vest on each of the first three anniversaries of the date of grant.

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