GNC Holdings Inc. announced that its board of directors has appointed Robert F. Moran, an Independent Director of GNC and former Chairman and Chief Executive Officer of PetSmart, Inc, as interim Chief Executive Officer, effective immediately. Mr. Moran replaces Michael G. Archbold, Chief Executive Officer, who is leaving the company and has resigned from the GNC Board. Mr. Moran will remain on the GNC Board.

Mr. Moran has over 40 years of executive leadership experience both domestically and internationally. He joined the GNC Board in July 2013. Mr. Moran most recently served as Chairman and Chief Executive Officer of PetSmart until June 2013.

Prior to being appointed Chairman in January 2012, Mr. Moran served as PetSmart's Chief Executive Officer since June 2009 and its President and Chief Operating Officer from December 2001 to June 2009.