SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Bryan Ronald
(Last) (First) (Middle)
9900 WEST 109TH STREET
(Street)
OVERLAND PARK KS 66210
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
COMPASS MINERALS INTERNATIONAL INC [ CMP ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP and General Manager
3. Date of Earliest Transaction (Month/Day/Year)
03/10/2011
4. If Amendment, Date of 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
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 03/10/2011 M 2,540 A $0 8,233 D
Common Stock 03/11/2011 S 1,075 D $86.48(1) 7,158 D
Common Stock 171(2) 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 (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 Securities Underlying Derivative Security (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: 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 03/10/2011 M 2,540 03/10/2011 03/10/2011 Common Stock 2,540 $0(3) 0 D
Restricted Stock Unit $0 03/10/2012 03/10/2012 Common Stock 2,756 2,756 D
Restricted Stock Unit $0 03/10/2013 03/10/2013 Common Stock 1,974 1,974 D
Restricted Stock Unit $0(3) 03/10/2011 A(4) 1,793 03/10/2014 03/10/2014 Common Stock 1,793 $0.00 1,793 D
Stock Option (Right to Buy) $25.69 01/23/2007 01/23/2013 Common Stock 21,500 21,500 D
Stock Option (Right to Buy) $33.44 03/12/2008 03/12/2014 Common Stock 10,000 10,000 D
Stock Option (Right to Buy) $55.12 03/11/2009 03/11/2015 Common Stock 8,071 8,071 D
Stock Option (Right to Buy) $58.99 03/10/2010 03/10/2016 Common Stock 8,453 8,453 D
Stock Option (Right to Buy) $78.51 03/10/2011 03/10/2017 Common Stock 5,524 5,524 D
Stock Option (Right to Buy) $86.47 03/10/2011 A(5) 3,237 03/10/2012 03/10/2018 Common Stock 3,237 $0 3,237 D
Performance Share Unit $0 03/10/2013 03/10/2013 Common Stock 509 509 D
Performance Share Unit(6) $0(7) 03/10/2011 A(6) 1,013 03/10/2014 03/10/2014 Common Stock 1,013(8) $0 1,013 D
Explanation of Responses:
1. The 1,075 shares were traded in blocks ranging in price from $85.63 to $87.83. $86.48 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 03/10/11.
3. All Restricted Stock Units have a conversion price of $0.00.
4. Restricted Stock Units granted: 3 year cliff vest on 3-10-14.
5. Stock options granted: vesting 25% after year one and then 25% per year thereafter.
6. Performance Stock Units are divided into three approximately equal tranches, each having a performance period of one year. On the third anniversary of the grant date, PSUs vest based on achievement of total shareholder return ("TSR") performance goals for each tranche. Payout for vested PSUs ranges from 0% to 150% based on the Company's TSR percentile compared to the TSR of the companies comprising the Russell 3000 Index. TSR is measured generally as the increase or decrease in the market value of Company common stock including the reinvestment of dividends. If a participant terminates employment prior to the third anniversary of the grant date, the PSUs will be forfeited except in the case of death or disability. If a change of control occurs before the third anniversary of the grant date, PSUs not previously forfeited will vest and be distributed immediately. Dividend equivalents are paid on PSUs earned in a year, subject to restrictions. PSUs have no voting rights.
7. All Performance Stock Units have a conversion price of $0.00.
8. The grant amount of 1,013 PSUs assumes 100% vesting. Since payout for PSUs can range from 0% to 150%, the maximum number of shares that could vest and be distributed is 1,519.
Remarks:
/s/ Robert E. Marsh (Attorney-In-Fact) 03/11/2011
** Signature of Reporting Person Date
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).
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