ECOLAB INC. — Director's Dealing 2011

Apr 27, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2011-04-25

Reporting Person: JOHNSON JOEL W (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-04-25	Common Stock	M	3542	$42.905	Acquired	94852.82	Direct
2011-04-25	Common Stock	F	2934	$51.795	Disposed	91918.82	Direct
2011-04-25	Common Stock	M	1522	$42.905	Acquired	93440.82	Direct
2011-04-25	Common Stock	F	1260	$51.795	Disposed	92363.106	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-04-25	Non-employee Director Stock Option (Right to Buy)	$42.905	M	3542	Disposed	2011-05-11	Common Stock (3542)	Direct
2011-04-25	Non-employee Director Stock Option (Right to Buy)	$42.905	M	1522	Disposed	2011-11-01	Common Stock (1522)	Direct

Footnotes

F1: Reflects the reporting person's payment of the exercise price for a stock option issued in accordance with rule 16b-3 by withholding shares of Ecolab Common Stock.

F2: Includes 182.284 shares acquired 04/20/11 by dividend reinvestment under the Dividend Reinvestment Plan for shareholders of Ecolab sponsored by Computershare Trust Company, Inc.