ECOLAB INC. — Director's Dealing 2005

Nov 4, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2005-11-02

Reporting Person: BILLER LESLIE S (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-11-02	Common Stock	M	7400	$24.833	Disposed	49431.95	Direct
2005-11-02	Common Stock	F	5562	$33.035	Disposed	43869.95	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-11-02	Stock Option (Right to Buy)	$24.833	M	7400	Disposed	2013-05-09	Common Stock (7400)	Direct
2005-11-02	Stock Option (Right to Buy)	$33.035	A	5562	Acquired	2013-05-09	Common Stock (5562)	Direct

Footnotes

F1: Reflects the reporting person's payment of the exercise price of the stock option issued in accordance with Rule 16b-3 by delivering shares of Ecolab common stock.

F2: The exercise price for the stock option has been halved and the number of shares subject to the option doubled to reflect a 2-for-1 stock split on June 6, 2003 subsequent to the original reporting of the options.