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

Pomerantz LLP has filed a class action lawsuit against Graphic Packaging Holding Company (GPK) and certain former officers for alleged violations of federal securities laws. The lawsuit covers investors who purchased GPK securities between February 4, 2025 and February 2, 2026. The complaint alleges that defendants made materially false and misleading statements about the company's business strength, operations, and financial guidance, while downplaying significant inventory management issues, reduced demand, and increased costs. The company issued multiple negative guidance revisions throughout 2025, with stock price declining significantly following each disclosure.