COMPASS MINERALS INTERNATIONAL INC — Director's Dealing 2011

Nov 1, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMPASS MINERALS INTERNATIONAL INC (CMP)
CIK: 0001227654
Period of Report: 2011-10-28

Reporting Person: Bryan Ronald (VP and General Manager)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-10-28	Common Stock	M	21500	$25.69	Acquired	28658	Direct
2011-10-28	Common Stock	M	10000	$33.44	Acquired	38658	Direct
2011-10-28	Common Stock	M	6053	$55.12	Acquired	44711	Direct
2011-10-28	Common Stock	M	4227	$58.99	Acquired	48938	Direct
2011-10-28	Common Stock	S	41780	$79.15	Disposed	7158	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-10-28	Stock Option (Right to Buy)	$25.69	M	21500	Disposed	2013-01-23	Common Stock (21500)	Direct
2011-10-28	Stock Option (Right to Buy)	$33.44	M	10000	Disposed	2014-03-12	Common Stock (10000)	Direct
2011-10-28	Stock Option (Right to Buy)	$55.12	M	6053	Disposed	2015-03-10	Common Stock (8071)	Direct
2011-10-28	Stock Option (Right to Buy)	$58.99	M	4227	Disposed	2016-03-10	Common Stock (8453)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	197	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Unit	$0	2012-03-10	Common Stock (2756)	2756	Direct
Restricted Stock Unit	$0	2013-03-10	Common Stock (1974)	1974	Direct
Restricted Stock Unit	$0	2014-03-10	Common Stock (1793)	1793	Direct
Stock Option (Right to Buy)	$78.51	2017-03-10	Common Stock (5524)	5524	Direct
Stock Option (Right to Buy)	$86.47	2018-03-10	Common Stock (3237)	3237	Direct
Performance Share Unit	$0	2013-03-10	Common Stock (509)	509	Direct
Performance Share Unit	$0	2014-03-10	Common Stock (1013)	1013	Direct

Footnotes

F1: The shares were traded in blocks ranging in price from $79.74 to $80.00. $79.15 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.

F2: The information in this report is based on a 401(k) plan statement dated as of 10/31/11.