AutoNation, an auto retail company, said this week in a Form 8-K filing that Michael Stephan no longer serves as corporate controller and principal accounting officer, due to an internal realignment of its finance department. He will continue to serve as an employee of the company on a transitional basis until June 2.

The company said it has retained executive search firm Heidrick & Struggles to conduct an external search for a new chief accounting officer with broader responsibilities. Chief Financial Officer Cheryl Scully will serve as principal accounting officer until a new chief accounting officer is appointed.