Clean Harbors Inc.’s chief financial officer, Robert Gagnon, has resigned.
Shares of the hazardous waste management firm dropped five per cent following the news.
"Mr. Gagnon did not resign due to any disagreement with the company regarding any matter related to the company's operations, policies, practices or financial statements," the company said in its filing to the U.S. Securities Exchange Commission.
The board of the Massachusetts-based firm designated Vice Chairman James Rutledge to resume his role as the company’s CFO, which he held from 2005 to August 2012.
Gagnon will continue to perform “transitional services” for Clean Harbors until March 31.
Prior to joining Clean Harbors, Gagnon served as VP of Finance, Business Planning and Chief Accounting Officer at Biogen Idec Inc. He has held a variety of positions within Biogen’s finance organization since joining the company in 2005. Previously, Gagnon was a Senior Audit Manager with Deloitte & Touche and PricewaterhouseCoopers. Prior to those positions, he was Corporate Controller at eRoom Technology. A Certified Public Accountant, Gagnon holds an MBA degree with a finance concentration from the Massachusetts Institute of Technology and a BA degree in Accounting from Bentley College.
Earlier this year Clean Harbors completed its purchase of used-oil-recycler Safety-Kleen Systems Inc. in a $1.25 billion deal.