Pomerantz Law Firm Announces the Filing of a Class Action Against Graphic Packaging Holding Company and Certain Former Officers - GPK

NEW YORK, May 7, 2026 /PRNewswire/ -- Pomerantz LLP announces that a class action lawsuit has been filed against Graphic Packaging Holding Company ("Graphic Packaging" or the "Company") (NYSE: GPK) and certain of its former officers. The class action, filed in the United States District...