Graphic Packaging Holding Company (NYSE: GPK) is facing a securities fraud class action alleging violations of federal securities laws. Multiple PR Newswire releases from shareholder rights law firms state that the lawsuit claims the company violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b‑5. One release describes a proposed class period running from February 4, 2025 through February 2, 2026. Several outlets also note that shareholders who bought GPK securities during the class period may have an opportunity to lead the lawsuit, with participating firms including Rosen Law Firm, the Schall Law Firm, Glancy Prongay Wolke & Rotter LLP, the Law Offices of Howard G. Smith, and the DJS Law Group. At least one release also references an upcoming deadline listed as July 6, 2026, associated with the opportunity to lead or participate in the litigation. The statements presented do not include the underlying factual allegations or the status of the case, but consistently characterize the matter as a class action focused on alleged securities law violations under the cited provisions.