Graphic Packaging Holding Company (GPK) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit

LOS ANGELES, May 20, 2026 /PRNewswire/ -- The Law Offices of Frank R. Cruz announces that investors with losses related to Graphic Packaging Holding Company ("Graphic Packaging" or the "Company") (NYSE: GPK) have opportunity to lead the securities fraud class action lawsuit. IF YOU ARE AN...