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 *
COORS WILLIAM K
  2. Issuer Name and Ticker or Trading Symbol
MOLSON COORS BREWING CO [TAP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
DIRECTOR EMERITUS
(Last)
(First)
(Middle)
21509 CABRINI BOULEVARD
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2006
(Street)

GOLDEN, CO 80401
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 06/30/2006   J(1)(2)(3)   9,252,994 D (1) (2) (3) 320,807 I By spouse
Class B Common Stock 02/21/2007   S(4)   100 D $ 86.76 320,707 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   607 D $ 86.75 320,100 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   500 D $ 86.73 319,600 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   700 D $ 86.72 318,900 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   700 D $ 86.71 318,200 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   900 D $ 86.7 317,300 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   5,000 D $ 86.6952 312,300 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   900 D $ 86.69 311,400 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   1,000 D $ 86.68 310,400 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   700 D $ 86.67 309,700 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   300 D $ 86.66 309,400 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   100 D $ 86.64 309,300 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   500 D $ 86.63 308,800 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   4,900 D $ 86.6263 303,900 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   1,000 D $ 86.62 302,900 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   200 D $ 86.61 302,700 I By spouse (4)
Class B Common Stock 02/21/2007   S(4)   200 D $ 86.6 302,500 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   100 D $ 86.4 302,400 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   3,000 D $ 86.393 299,400 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   400 D $ 86.39 299,000 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   400 D $ 86.38 298,600 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   100 D $ 86.35 298,500 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   4,641 D $ 86.3415 293,859 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   3,000 D $ 86.34 290,859 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   300 D $ 86.33 290,559 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   400 D $ 86.32 290,159 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   1,600 D $ 86.3 288,559 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   500 D $ 86.29 288,059 I By spouse (4)
Class B Common Stock 02/22/2007   S(4)   100 D $ 86.28 287,959 I By spouse (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
COORS WILLIAM K
21509 CABRINI BOULEVARD
GOLDEN, CO 80401
      DIRECTOR EMERITUS

Signatures

 /s/ William K. Coors   04/03/2007
**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) As of February 21, 2005, Keystone Financing LLC ("Keystone"), a Delaware limited liability company, owned 9,252,994 shares of Class B Common Stock of Molson Coors Brewing Company (the "Trust Shares"). At one time, the Reporting Person was a Manager of Keystone and, in such capacity, had voting power over the Trust Shares, as well as dispositive power over the Trust Shares except in the event of a sale of all or substantially all of the assets of Keystone. The Members of Keystone, including the May Kistler Coors Trust dated September 24, 1965 (the "Trust"), had dispositive power over the Trust Shares only in the event of a sale of all or substantially all of Keystone's assets. The Reporting Person was a trustee of the Trust and, in such capacity, had dispositive power over the Trust Shares (along with other trustees of the Trust). (continued to footnote 2).
(2) Based on these relationships, on February 22, 2005, the Reporting Person filed a Form 3 with the Securities and Exchange Commission to report the beneficial ownership of the Trust Shares (but disclaimed beneficial ownership of the Trust Shares owned by Keystone and the Trust except to the extent of his pecuniary interest therein). The Reporting Person incorrectly reported in his Form 3 his status as manager of Keystone because on March 20, 2003, the Reporting Person resigned as a Manager of Keystone. On June 30, 2006, Adolph Coors Company LLC ("ACC"), a Wyoming limited liability company, became the trustee of various Coors family trusts, including the Trust. The Reporting Person serves as a director of ACC with eleven other former trustees of the Coors family trusts. On July 10, 2006, Keystone was dissolved and, as a result, the Trust Shares reverted to the Coors family trusts.(continued to footnote 3).
(3) None of the individual members of the board of directors of ACC are considered to be beneficial owners of Trust Shares held by ACC, as the trustee of the Coors family trusts.
(4) As of February 21, 2005, the 320,807 shares of Class B Common Stock of Molson Coors Brewing Company (the "Spousal Shares") reported as having been sold on this Form 4 and other Form 4's filed by the Reporting Person on April 4, 2007 were owned by the Reporting Person and his spouse, Rita Bass, in Joint Tenancy. On August 23, 2005, the Reporting Person transferred ownership of the Spousal Shares to Rita Bass individually. Ms. Bass sold the Spousal Shares in open market transactions listed on this Form 4 and other Form 4's filed by the Reporting Person on April 4, 2007 over the course of a three-day period from February 21, 2007 through February 23, 2007.

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