Insider Stock Transactions
 
Below is a listing of reports filed since 01-MAY-12 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-MAY-12.
 
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  22-FEB-13 |  07-DEC-12 |  30-NOV-12 |  25-MAY-12  01-FEB-13 |  30-NOV-12
Beck, Christophe   Executive Vice President and Regions President  22-FEB-13 |  07-DEC-12 |  28-SEP-12  
Berger, Larry L.   Executive Vice President and Chief Technical Officer  13-MAR-13 |  22-FEB-13 |  07-DEC-12  
Blanco, Alex N.   Executive Vice President and Chief Supply Chain Officer  22-FEB-13 |  08-JAN-13  
Corkrean, John J.   Senior Vice President and Corporate Controller  22-FEB-13 |  21-DEC-12 |  07-DEC-12 |  28-AUG-12  28-AUG-12
Handley, Thomas W.   President and Chief Operating Officer  22-FEB-13 |  27-DEC-12 |  07-DEC-12 |  30-NOV-12 |  08-JUN-12  
Hickey, Michael A.   Executive Vice President and President - Global Institutional  22-FEB-13 |  07-DEC-12 |  05-DEC-12 |  07-MAY-12  05-DEC-12 |  07-MAY-12
Meyer, Michael L.   Executive Vice President - Human Resources  22-FEB-13 |  07-DEC-12  06-MAR-13
Mulhere, Timothy P.   Executive Vice President and President - Global Water and Process Services  22-FEB-13 |  07-DEC-12 |  30-NOV-12 |  07-MAY-12  30-NOV-12 |  07-MAY-12
Schmechel, Daniel J.   Chief Financial Officer  22-FEB-13 |  07-DEC-12 |  05-DEC-12 |  26-JUN-12  
Seifert, James J.   Executive Vice President, General Counsel and Secretary  07-DEC-12  06-AUG-12
Taylor, Steven M.   Executive Vice President and President-Global Energy Services  01-MAR-13 |  07-DEC-12 |  10-MAY-12  
Wyant, Jill S.   Executive Vice President and President - Global Food & Beverage  22-FEB-13 |  07-DEC-12 |  01-OCT-12  
     
Non-Employee Directors Securities Acquired
and Initial Reports
Securities Disposed
Beck, Barbara J.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Biller, Leslie S.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  06-NOV-12 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Chazen, Stephen I.   Director  06-MAY-13 |  06-MAY-13  
Grundhofer, Jerry A.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  05-DEC-12 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  05-DEC-12
Higgins, Arthur J.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Johnson, Joel W.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  07-DEC-12 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  01-FEB-13
Larson, Michael   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Levin, Jerry W.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  05-DEC-12 |  30-NOV-12 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  13-MAY-13 |  10-MAY-13 |  06-MAY-13 |  05-DEC-12 |  30-NOV-12
Lumpkins, Robert L.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  14-NOV-12 |  06-NOV-12 |  02-OCT-12 |  03-JUL-12 |  15-MAY-12 |  07-MAY-12  
Reich, Victoria J.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
VanDeWeghe, Mary M.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Zillmer, John J.   Director  06-MAY-13 |  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
     
Principal Stockholders Securities Acquired
and Initial Reports
Securities Disposed
Cascade Investment, LLC   Stockholder  07-JUN-12 |  06-JUN-12 |  05-JUN-12  
     
Former Reporting Persons    
Flitman, David E.   Executive Vice President and President-Global Water and Process Services  10-MAY-12  
Fritze, Steven L.   Former Chief Financial Officer  07-NOV-12 |  19-OCT-12 |  11-JUN-12 |  08-JUN-12 |  10-MAY-12  01-FEB-13 |  07-NOV-12
Mason, Phillip J.   Retired Executive Vice President and President - Europe  08-JUN-12  08-JUN-12
Miller, James A.   Executive Vice President and President - Global Corporate Initiatives  20-AUG-12 |  12-JUN-12 |  18-MAY-12  24-AUG-12 |  12-JUN-12
O'Hara, C. Scott   Director  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Sanders, Daniel S.   Director  02-APR-13 |  03-JAN-13 |  02-OCT-12 |  03-JUL-12 |  07-MAY-12  
Temple, Greg E.   Former Executive Vice President and Chief Supply Chain Officer    07-MAY-12