MOSAIC CO — Director's Dealing 2012

Jan 23, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MOSAIC CO (MOS)
CIK: 0001285785
Period of Report: 2012-01-20

Reporting Person: MACKAY HAROLD H (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-20	Common Stock	M	4800	$12.15	Acquired	16716	Direct
2012-01-20	Common Stock	M	9150	$9.75	Acquired	25866	Direct
2012-01-20	Common Stock	S	13950	$53.99	Disposed	11916	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-20	Stock Option (right to buy)	$12.1500	M	4800	Disposed	2012-05-10	Common Stock (4800)	Direct
2012-01-20	Stock Option (right to buy)	$9.7500	M	9150	Disposed	2013-05-16	Common Stock (9150)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (right to buy)	$11.5900	2014-05-14	Common Stock (7800)	7800	Direct
Restricted Stock Units	$0.00		Common Stock (1712)	1712	Direct
Restricted Stock Units	$0.00		Common Stock (1381)	1381	Direct
Restricted Stock Units	$0.00		Common Stock (2908)	2908	Direct

Footnotes

F1: One for one

F2: Not applicable

F3: The restricted stock units vested on October 8, 2010. Vested shares will be delivered to the reporting person on October 8, 2012.

F4: The restricted stock units vested on October 7, 2011. Vested shares will be delivered to the reporting person on October 7, 2013.

F5: The restricted stock units vest on October 6, 2012. Vested shares will be delivered to the reporting person on October 6, 2014.