MOSAIC CO — Director's Dealing 2011

Jan 28, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MOSAIC CO (MOS)
CIK: 0001285785
Period of Report: 2011-01-27

Reporting Person: THRASHER LINDA (Vice Pres - Public Affairs)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-01-27	Common Stock	M	875	$15.04	Acquired	14603	Direct
2011-01-27	Common Stock	S	8419	$78.47	Disposed	6184	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-01-27	Stock Option (right to buy)	$15.04	M	875	Disposed	2014-10-29	Common Stock (875)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (right to buy)	$17.29	2015-08-01	Common Stock (13915)	13915	Direct
Stock Option (right to buy)	$15.45	2016-08-04	Common Stock (15773)	15773	Direct
Stock Option (right to buy(	$40.03	2017-08-02	Common Stock (8909)	8909	Direct
Stock Option (Right to Buy)	$127.21	2018-07-31	Common Stock (1829)	1829	Direct
Restricted Stock Units	$0.00		Common Stock (983)	983	Direct
Stock Option (Right to Buy)	$52.72	2019-07-27	Common Stock (3606)	3606	Direct
Restricted Stock Units	$0.00		Common Stock (3414)	3414	Direct
Stock Option (Right to Buy)	$44.93	2020-07-27	Common Stock (6078)	6078	Direct
Restricted Stock Units	$0.00		Common Stock (3339)	3339	Direct

Footnotes

F1: One-for-One

F2: Not Applicable

F3: This Stock Option is 100% exercisable.

F4: Grant Date 07/31/2008; option becomes exercisable in three equal installments commencing on the first anniversary of the grant date and on each anniversary thereafter.

F5: Grant Date 07/27/2009; option becomes exercisable in three equal installments commencing on the first anniversary of the grant date and on each anniversary thereafter.

F6: Grant Date 07/27/2010; option becomes exercisable in three equal installments commencing on the first anniversary of the grant date and on each anniversary thereafter.