Graphic Packaging Holding Company announced that Mary K. Rhinehart has joined its board of directors, effective February 16. In her more than four-decade career with Johns Manville (JM), a leading manufacturer of premium-quality building and specialty products, Ms. Rhinehart held various executive roles and continues to serve as Chairman of the company. She served as President and CEO from 2012 to 2020, after serving as CFO for eight years. She has been Chairman since 2014.