MOSAIC CO — Director's Dealing 2010

Aug 4, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MOSAIC CO (MOS)
CIK: 0001285785
Period of Report: 2010-08-02

Reporting Person: BEUG NORMAN B (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-02	Common Stock	M	8119	$0.00	Acquired	100227	Direct
2010-08-02	Common stock	F	3573	$49.39	Disposed	96654	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-08-02	Restricted Stock Units	$0.00	M	8119	Disposed		Common Stock (8119)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (Right to Buy)	$40.03	2017-08-02	Common Stock (19368)	19368	Direct
Stock Option (Right to Buy)	$127.21	2018-07-31	Common Stock (4755)	4755	Direct
Restricted Stock Units	$0.00		Common Stock (2555)	2555	Direct
Stock Option (Right to Buy)	$52.72	2019-07-27	Common Stock (7813)	7813	Direct
Restricted Stock Units	$0		Common Stock (7398)	7398	Direct
Stock Option (right to Buy)	$44.93	2020-07-27	Common Stock (11143)	11143	Direct
Restricted Stock Units	$0.00		Common Stock (6121)	6121	Direct

Footnotes

F1: One-for-One

F2: Not Applicable

F3: 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.

F4: 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.

F5: 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.

F6: Shares withheld to cover tax liability incurred as a result of vesting of Restricted Stock Units.

F7: This Stock Option is 100% exercisable.