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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * BECKER RANDALL V   2. Issuer Name and Ticker or Trading Symbol COMMERCE GROUP INC /MA [CGI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Treasurer (Last) (First) (Middle) 77 BATES POINT ROAD 3. Date of Earliest Transaction (Month/Day/Year) 11/09/2004 (Street) WEBSTER, MA 01570 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 11/09/2004   M   10,000 A $ 30.8 87,624 (1) D   Common Stock 11/09/2004   S   10,000 D $ 55.25 77,624 (1) D   Common Stock               25,981 I See (2) (6) Common Stock               7,461 I See (3) (6) Common Stock               18,262 I See (4) (6) Common Stock               4,363 I See (5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

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

Option to purchase common stock

$ 30.8

11/09/2004

M

10,000

04/06/2004

04/07/2009

Common Stock

10,000

$ 0

0 (1)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BECKER RANDALL V 77 BATES POINT ROAD WEBSTER, MA 01570	X		Treasurer

Signatures

/s/ Randall V. Becker		11/12/2004
**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)	The transactions reported on this Form 4 were made pursuant to a plan intended to comply with Rule 10b5-1(c), previously adopted on September 15, 2004, when the reporting person was not in possession of material nonpublic information.
(2)	25,981 shares are owned by the reporting person's wife.
(3)	The reporting person's wife indirectly beneficially owns 7,461 shares that are held by the Employee Stock Ownership Plan of The Commerce Group, Inc., which number of shares is calculated based on the units that have been credited to the reporting person's wife as a participant in the ESOP and is subject to adjustment from time to time due, in part, to the unit value and the price per share of the Common Stock.
(4)	18,262 shares are owned by the reporting person as trustee for benefit of his sons.
(5)	The reporting person indirectly beneficially owns 4,363 shares that are held by the Employee Stock Ownership Plan of The Commerce Group, Inc., which number of shares is calculated based on the units that have been credited to the reporting person as a participant in the ESOP and is subject to adjustment from time to time due, in part, to the unit value and the price per share of the Common Stock.
(6)	The filing of this statement by the reporting person is not to be construed as and shall not be deemed to be an admission that the undersigned is, for the purpose of Section 16 the Securities Exchange Act of 1934, as amended, a beneficial owner of these shares.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.