ATLANTA, GA – – (Globe Newswire – May 8, 2026) – – A shareholder class action lawsuit has been filed against Graphic Packaging Holding Company (“Graphic Packaging” or the “Company”) (NYSE: GPK). The lawsuit alleges that Defendants made false and misleading statements and/or failed to disclose material adverse facts regarding Graphic Packaging’s business, operations, and prospects, including allegations that: (i) Graphic Packaging was experiencing significant inventory management issues, as well as significantly reduced demand and volumes and increased costs; (ii) Defendants downplayed the true scope and severity of the foregoing issues, which were likely to, and did, have a material negative impact on the Company’s business and financial results; (iii) Defendants likewise overstated the strength and sustainability of the Company’s business model and operations, as well as its ability to weather ongoing macroeconomic headwinds; and (iv) accordingly, the Company’s previously issued FY 2025 financial guidance was unreliable and/or unrealistic.

 If you purchased Graphic Packaging shares between February 4, 2025 and February 2, 2026, and experienced a loss on that investment, you are encouraged to discuss your legal rights by contacting Corey D. Holzer, Esq. at cholzer@holzerlaw.com, by toll-free telephone at (888) 508-6832, or by visiting the firm’s website at www.holzerlaw.com/case/graphic-packaging-holding-company/ for more information. 

 The deadline to ask the court to be appointed lead plaintiff in the case is July 6, 2026.