ECOLAB INC. — Director's Dealing 2016

Feb 26, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC. (ECL)
CIK: 0000031462
Period of Report: 2016-02-24

Reporting Person: Hughes Bryan L (Sr. VP & Corporate Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-02-24	Common Stock	A	900	—	Acquired	7311	Direct
2016-02-24	Common Stock	F	338	$100.465	Disposed	6999.916	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	529.611	Indirect

Footnotes

F1: Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of performance-based restricted stock units in accordance with Rule 16b-3.

F2: The total includes 26.378 shares that were inadvertently omitted from the reporting person's Form 3 dated May 16, 2014 and subsequent reports. The total also includes 0.548 shares acquired at various times between the dates of July 18, 2014 and January 21, 2016 by dividend reinvestment under the Dividend Reinvestment Plan for shareholders of Ecolab sponsored by Computershare Trust Company, N.A.

F3: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of January 31, 2016. Includes 1.803 UNITS acquired since the reporting person's last report. (The 529.611 UNITS are the equivalent of approximately 978 SHARES of the issuer's Common Stock.)