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 * Molson Andrew Thomas   2. Issuer Name and Ticker or Trading Symbol MOLSON COORS BREWING CO [TAP.A; TAP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O MOLSON COORS BREWING COMPANY, 311 10TH STREET, NH 311 3. Date of Earliest Transaction (Month/Day/Year) 05/12/2005 (Street) GOLDEN, CO 80401-0300 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 Class B Common Stock (non-voting) 05/12/2005   A   1,500 A (5) 1,500 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

Class A exchangeable shares of Molson Coors Canada Inc.

(2)

02/09/2005

(1)

Class A Common Stock

50

50

D

Class A Common Stock (3)

(2)

02/09/2005

(4)

Class B Common Stock

50

50

D

Class B exchangeable shares of Molson Coors Canada Inc.

(2)

02/09/2005

(1)

Class B Common Stock

93

93

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Molson Andrew Thomas C/O MOLSON COORS BREWING COMPANY 311 10TH STREET, NH 311 GOLDEN, CO 80401-0300	X

Signatures

Annita M. Menogan as agent for Andrew T. Molson		05/16/2005
**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 Class A exchangeable shares and Class B exchangeable shares are redeemable by a subsidiary of Molson Coors Brewing Company at any time after February 9, 2045, for the corresponding class of Molson Coors Brewing Company Common Stock or, for non-affiliates only, the equivalent value in cash.
(2)	These shares are convertible on a 1-for-1 basis.
(3)	These shares of Class A Common Stock are not outstanding but are issuable upon conversion of the Class A exchangeable shares of Molson Coors Canada Inc.
(4)	No expiration date.
(5)	These shares were issued as a restricted stock unit under the Issuer's Incentive Compensation Plan and shall vest on the third anniversary following the date of grant, subject to acceleration or cancellation upon the occurrence of certain events.

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