Sec Form 4 Filing - BRISIMITZAKIS ANGELO C @ COMPASS MINERALS INTERNATIONAL INC - 2012-11-01

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 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: November 30, 2011 Estimated average burden hours per response... 0.5

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 (MM/DD/YY) 11/01/2012 (Street) OVERLAND PARK, KS66210 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 11/01/2012 M 24,000 A $ 33.44 72,477 D Common Stock 11/01/2012 S 24,000 D $ 79.67 ( 1 ) 48,477 D Common Stock 11/02/2012 M 30,934 A $ 55.12 79,411 D Common Stock 11/02/2012 S 30,934 D $ 78.99 ( 2 ) 48,477 D Common Stock 11/02/2012 M 29,102 A $ 58.99 77,579 D Common Stock 11/02/2012 S 29,102 D $ 79.05 ( 3 ) 48,477 D Common Stock 612 ( 4 ) I Company 401 (k) Plan

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 03/10/2013 03/10/2013 Common Stock 10,190 10,190 D Restricted Stock Unit $ 0 03/12/2015 03/12/2015 Common Stock 10,601 10,601 D Restricted Stock Unit $ 0 03/10/2014 03/10/2014 Common Stock 8,789 8,789 D Stock Option (Right to Buy) $ 33.44 11/01/2012 M 24,000 03/12/2008 03/12/2014 Common Stock 24,000 ( 5 ) 0 D Stock Option (Right to Buy) $ 55.12 11/02/2012 M 30,934 03/10/2009 03/10/2015 Common Stock 30,934 ( 5 ) 0 D Stock Option (Right to Buy) $ 58.99 11/02/2012 M 29,102 03/10/2010 03/10/2016 Common Stock 38,803 ( 5 ) 9,701 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 Stock Option (Right to Buy) $ 71.69 03/12/2013 03/12/2019 Common Stock 24,432 24,432 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 Performance Stock Unit $ 0 03/12/2015 03/12/2015 Common Stock 7,652 7,652 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other BRISIMITZAKIS ANGELO C 9900 WEST 109TH STREET SUITE 100 OVERLAND PARK, KS66210 X Chief Executive Officer Signatures /s/ Robert E. Marsh as Attorney-in-Fact 11/02/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The 24,000 shares were traded in blocks ranging in price from $78.19 to $80.61. $79.67 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 30,934 shares were traded in blocks ranging in price from $77.37 to $80.60. $78.99 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. ( 3 )The 29,102 shares were traded in blocks ranging in price from $77.37 to $80.58. $79.05 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. ( 4 )The information in this report is based on a 401(k) plan statement dated as of 11/01/12. ( 5 )This transaction is the exercise of a derivative security. See column 2 for the exercise price.

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

* 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).

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