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 *
KIELY W LEO III
  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
__X__ Officer (give title below) _____ Other (specify below)
Global CEO
(Last)
(First)
(Middle)
C/O MOLSON COORS BREWING COMPANY, 1225 17TH STREET
3. Date of Earliest Transaction (Month/Day/Year)
01/15/2008
(Street)

DENVER, CO 80202
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               7,468.172 I by 401(k)
Class B Common Stock               4,744.4149 I by IRA
Class B Common Stock               730 I by Channel Island Partnership
Class B Common Stock 01/15/2008   M   40,000 A $ 24.51 199,900 D  
Class B Common Stock 01/15/2008   S   1,800 D $ 48.55 158,100 D  
Class B Common Stock 01/15/2008   S   2,300 D $ 48.79 155,800 D  
Class B Common Stock 01/15/2008   S   200 D $ 48.805 155,600 D  
Class B Common Stock 01/15/2008   S   1,400 D $ 48.82 154,200 D  
Class B Common Stock 01/15/2008   S   3,300 D $ 48.83 150,900 D  
Class B Common Stock 01/15/2008   S   400 D $ 48.84 150,500 D  
Class B Common Stock 01/15/2008   S   1,500 D $ 48.85 149,000 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.855 148,900 D  
Class B Common Stock 01/15/2008   S   300 D $ 48.86 148,600 D  
Class B Common Stock 01/15/2008   S   400 D $ 48.865 148,200 D  
Class B Common Stock 01/15/2008   S   3,100 D $ 48.87 145,100 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.875 145,000 D  
Class B Common Stock 01/15/2008   S   1,100 D $ 48.88 143,900 D  
Class B Common Stock 01/15/2008   S   400 D $ 48.885 143,500 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.887 143,400 D  
Class B Common Stock 01/15/2008   S   500 D $ 48.89 142,900 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.895 142,800 D  
Class B Common Stock 01/15/2008   S   4,500 D $ 48.9 138,300 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.905 138,200 D  
Class B Common Stock 01/15/2008   S   3,938 D $ 48.91 134,262 D  
Class B Common Stock 01/15/2008   S   1,600 D $ 48.915 132,662 D  
Class B Common Stock 01/15/2008   S   4,123 D $ 48.92 128,539 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.9225 128,439 D  
Class B Common Stock 01/15/2008   S   200 D $ 48.925 128,239 D  
Class B Common Stock 01/15/2008   S   1,839 D $ 48.93 126,400 D  
Class B Common Stock 01/15/2008   S   100 D $ 48.935 126,300 D  

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
Employee stock option (right to buy) $ 24.51 01/15/2008   M     40,000 02/13/2003(1) 02/13/2013 Class B Common Stock 40,000 $ 0 160,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KIELY W LEO III
C/O MOLSON COORS BREWING COMPANY
1225 17TH STREET
DENVER, CO 80202
  X     Global CEO  

Signatures

 Samuel D. Walker as agent for W. Leo Kiely III   01/16/2008
**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) These options are fully vested and exercisable.
 
Remarks:
1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934.

2. This Form 4 is the first of two Form 4s filed to report this series of transactions.

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.