On May 12, 2015, Nathan M. Troup notified the company of his resignation as Vice President, Chief Accounting Officer and Controller (principal accounting officer) of the company, with an anticipated effective date of June 8, 2015, in order to pursue another opportunity. Gary W. Ferrera, the company's Executive Vice President and Chief Financial Officer has assumed the responsibilities of principal accounting officer of the company. Mr. Ferrera, age 52, has served as the company's Executive Vice President and Chief Financial Officer since March 2015.