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 *
BRISIMITZAKIS ANGELO C
   2. Issuer Name and Ticker or Trading Symbol
COMPASS MINERALS INTERNATIONAL INC [CMP] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer
(Last)
(First)
(Middle)
9900 WEST 109TH STREET, SUITE 100		 3. Date of Earliest Transaction (Month/Day/Year)
10/28/2011
(Street)

OVERLAND PARK, KS 66210		 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 10/28/2011   M   65,000 A $ 26.52 105,557 D  
Common Stock 10/28/2011   S   65,000 D $ 79.26 (1) 40,557 D  
Common Stock               486 (2) I Company 401 (k) Plan

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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
Restricted Stock Unit $ 0             03/10/2012 03/10/2012 Common Stock 12,651   12,651 D  
Restricted Stock Unit $ 0             03/10/2013 03/10/2013 Common Stock 10,190   10,190 D  
Restricted Stock Unit $ 0             03/10/2014 03/10/2014 Common Stock 8,789   8,789 D  
Stock Opton (Right to Buy) $ 26.52 10/28/2011   M     65,000 05/11/2007 05/11/2013 Common Stock 65,000 $ 0 0 D  
Stock Option (Right to Buy) $ 33.44             03/12/2008 03/12/2014 Common Stock 48,000   48,000 D  
Stock Option (Right to Buy) $ 55.12             03/10/2009 03/10/2015 Common Stock 30,934   30,934 D  
Stock Option (Right to Buy) $ 58.99             03/10/2010 03/10/2016 Common Stock 38,803   38,803 D  
Stock Option (Right to Buy) $ 78.51             03/10/2011 03/10/2017 Common Stock 28,510   28,510 D  
Stock Opton (Right to Buy) $ 86.47             03/10/2012 03/10/2018 Common Stock 19,421   19,421 D  
Performance Share Unit $ 0             03/10/2013 03/10/2013 Common Stock 1,911   1,911 D  
Performance Stock Unit $ 0             03/10/2014 03/10/2014 Common Stock 6,075   6,075 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BRISIMITZAKIS ANGELO C
9900 WEST 109TH STREET
SUITE 100
OVERLAND PARK, KS 66210		   X     Chief Executive Officer  

Signatures

 /s/ Robert E. Marsh as Attorney-in-Fact   11/01/2011
**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 shares were traded in blocks ranging in price from $78.52 to $80.15. $79.26 is the weighted average price. Information regarding the number of shares sold at each separate price is available upon request by the SEC staff, the issuer, or any security holder of the issuer.
(2) The information in this report is based on a 401(k) plan statement dated as of 10/28/11.

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