X0304 4 2012-01-24 0 0000031462 ECOLAB INC ECL 0001189430 LEVIN JERRY W J. W. LEVIN PARTNERS, LLC 9 WEST 57TH STREET, 26TH FLOOR NEW YORK NY 10019 1 0 0 0 Common Stock 2012-01-24 4 M 0 4821 31.945 A 41256.65 D Common Stock 2012-01-24 4 F 0 2531 60.835 D 38725.65 D Common Stock 2012-01-24 4 M 0 3117 31.945 A 41842.65 D Common Stock 2012-01-24 4 F 0 1636 60.835 D 40206.65 D Common Stock 2012-01-24 4 M 0 4398 31.945 A 44604.65 D Common Stock 2012-01-24 4 F 0 2309 60.835 D 42295.65 D Stock Option (Right to Buy) 31.945 2012-01-24 4 M 0 4821 0 D 2005-08-30 2012-05-10 Common Stock 4821 0 D Stock Option (Right to Buy) 31.945 2012-01-24 4 M 0 3117 0 D 2005-08-30 2012-05-10 Common Stock 3117 0 D Stock Option (Right to Buy) 31.945 2012-01-24 4 M 0 4398 0 D 2005-08-30 2012-11-01 Common Stock 4398 0 D 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. /s/David F. Duvick, Attorney-in-Fact for Jerry Levin 2012-01-26