X0306 4 2014-02-26 0 0000031462 ECOLAB INC ECL 0001275967 HANDLEY THOMAS W ECOLAB INC. 370 WABASHA STREET N. ST. PAUL MN 55102 0 1 0 0 President and COO Common Stock 2014-02-26 4 A 0 9020 0.00 A 14860 D Common Stock 2014-02-26 4 F 0 3035 105.385 D 11825 D Common Stock 35079.155 I By GRAT No. 1 Common Stock 537.662 I By Ecolab Savings Plan 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. Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of January 31, 2014. Includes 1.394 UNITS acquired since the reporting person's last report. (The 537.662 UNITS are the equivalent of approximtely 993 shares of the issuer's Common Stock.) /s/ David F. Duvick, as Attorney-in-Fact for Thomas W. Handley 2014-02-28