David W. MacLennan

Lead Director at Ecolab

Chairman and Chief Executive Officer of Cargill, Incorporated, a privately held company and world-leading producer and marketer of food, agricultural, financial, and industrial products and services. Director of Ecolab since 2015. Vice Chair of the Audit Committee and member of the Governance Committee.

Mr. MacLennan has served as Chairman of the Board of Cargill since 2015 and as Chief Executive Officer since 2013. He held the offices of Chief Operating Officer and President from 2011 until his appointment as Chief Executive Officer in 2013. Prior to these roles, Mr. MacLennan held several other positions with Cargill, including Chief Financial Officer, President of Cargill Energy and Managing Director of the Value Investment Group. He has also held various management positions with US Bancorp Piper Jaffray and Goldberg Securities.

Qualifications – With more than 25 years of leadership experience at Cargill, Mr. MacLennan has developed significant leadership and strategic planning skills, as well as extensive knowledge and insight in corporate governance, risk management, financial management and global business practices.


  • Lead Director

    Current role

  • Director