Insider Stock Transactions   Below is a listing of reports filed since 01-DEC-11 with the U.S. Securities and Exchange Commission to disclose transactions involving Ecolab Inc. securities by those executive officers, directors and stockholders of Ecolab Inc. subject to Section 16 of the Securities Exchange Act of 1934. The hyperlinks in the table below lead to the respective Section 16 reports of Ecolab's executive officers, directors and principal stockholders filed since 01-DEC-11.   Reporting Person   Title Date Report Filed With SEC Executive Officers Securities Acquired and Initial Reports Securities Disposed Baker, Douglas M.   Chariman of the Board and Chief Executive Officer  05-DEC-11   Berger, Larry L.   Executive Vice President and Chief Technical Officer  05-DEC-11   Corkrean, John J.   Senior Vice President and Corporate Controller  07-DEC-11 |  05-DEC-11   Fritze, Steven L.   Chief Financial Officer  05-DEC-11   Fyrwald, Erik   President  01-MAR-12 |  24-FEB-12 |  03-FEB-12 |  09-DEC-11 |  05-DEC-11 |  05-DEC-11   Handley, Thomas W.   Senior Executive Vice President and President - Global Food & Beverage and Asia Pacific Latin Americ  05-DEC-11   Hickey, Michael A.   Executive Vice President and President - Institutional  05-DEC-11   Mason, Phillip J.   Executive Vice President and President - EMEA  05-DEC-11   Meyer, Michael L.   Executive Vice President - Human Resources  05-DEC-11   Miller, James A.   Executive Vice President and President - Global Services and Specialty  02-MAR-12 |  13-DEC-11 |  05-DEC-11  07-MAR-12 |  02-MAR-12 |  14-DEC-11 Mulhere, Timothy P.   Executive Vice President and President - Global Healthcare  30-JAN-12   Seifert, James J.   Executive Vice President, General Counsel and Secretary  05-DEC-11   Temple, Greg E.   Executive Vice President and Chief Supply Chain Officer  05-DEC-11         Non-Employee Directors Securities Acquired and Initial Reports Securities Disposed Beck, Barbara J.   Director  03-APR-12 |  04-JAN-12   Biller, Leslie S.   Director  03-APR-12 |  11-JAN-12 |  04-JAN-12   Grundhofer, Jerry A.   Director  03-APR-12 |  04-JAN-12 |  07-DEC-11   Higgins, Arthur J.   Director  03-APR-12 |  04-JAN-12   Johnson, Joel W.   Director  03-APR-12 |  16-MAR-12 |  17-JAN-12 |  04-JAN-12   Larson, Michael   Director  03-APR-12 |  05-MAR-12   Levin, Jerry W.   Director  03-APR-12 |  26-JAN-12 |  04-JAN-12  07-DEC-11 Lumpkins, Robert L.   Director  03-APR-12 |  07-MAR-12 |  04-JAN-12   Norris, Paul J.   Director  03-APR-12 |  04-JAN-12 |  09-DEC-11 |  05-DEC-11 |  05-DEC-11   O'Hara, C. Scott   Director  03-APR-12 |  04-JAN-12   Reich, Victoria J.   Director  03-APR-12 |  04-JAN-12   Sanders, Daniel S.   Director  03-APR-12 |  04-JAN-12 |  14-DEC-11 |  09-DEC-11 |  05-DEC-11 |  05-DEC-11   VanDeWeghe, Mary M.   Director  03-APR-12 |  04-JAN-12 |  09-DEC-11 |  05-DEC-11 |  05-DEC-11   Zillmer, John J.   Director  03-APR-12 |  04-JAN-12         Principal Stockholders Securities Acquired and Initial Reports Securities Disposed Cascade Investment, LLC   Stockholder  12-DEC-11         Former Reporting Persons     Nestegard, Susan K.   Former Executive Vice President - Global Healthcare  25-JAN-12 |  05-DEC-11