Rosen Law Firm, a prominent global investor rights law firm, is reminding investors of Graphic Packaging Holding Company (NYSE:GPK) of an important deadline regarding a securities class action lawsuit. Investors who purchased Graphic Packaging securities between February 4, 2025, and February 2, 2026, are encouraged to secure legal counsel before the July 6, 2026, deadline for lead plaintiff applications. The lawsuit claims that the company misrepresented its financial condition, failing to disclose significant inventory management issues and overstating its business model's sustainability. Investors may be entitled to compensation without upfront costs through a contingency fee arrangement. The Rosen Law Firm, recognized for its success in securities class actions, has recovered hundreds of millions for investors and emphasizes the importance of selecting qualified counsel. Interested investors can join the class action by visiting the firm's website or contacting their office directly for more information.