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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
31462	Ecolab Inc	ECL	Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics (2840)	410231510

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1431849	J John Corkrean	370 Wabasha Street N Saint Paul MN 55102	Sr.vp And Corporate Controller	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2012-08-24	4,450	$24.34	12,540	No	4	M	Direct
Common Stock	Disposition	2012-08-24	2,549	$66.58	9,991	No	4	F	Direct
Common Stock	Acquisiton	2012-08-24	2,000	$27.39	11,991	No	4	M	Direct
Common Stock	Disposition	2012-08-24	1,206	$66.58	10,785	No	4	F	Direct
Common Stock	Disposition	2012-08-27	1,000	$66.23	9,785	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	F	Direct
No	4	M	Direct
No	4	F	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2012-08-24	4,450	$0.00	4,450	$24.34
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2012-08-24	2,000	$0.00	2,000	$27.39

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2003-12-05	2012-12-05	No	4	M	Direct
4,000	2004-12-11	2013-12-11	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	1,593	Indirect	By Ecolab Savings Plan

Footnotes

Reflects the reporting person's payment of the exercise price and witholding taxes for a stock option issued in accordance with Rule 16b-3 by delivering or withholding shares of Ecolab common stock.
Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of July 31, 2012. Includes 37.924 UNITS acquired since the reporting person's last report. (The 1,593.075 UNITS are the equivalent of approximtely 2,961 shares of the issuer's Common Stock.)
Option granted under the Ecolab Inc. 2002 Stock Incentive Plan. The option became exercisable, on a cumulative basis, as to one-third of the option shares (excluding any fractional portion less than one share), on each of the first and second anniversaries of the date of grant and as to the remaining shares on the third anniversary of the date of grant.