GPK IMPORTANT DEADLINE: ROSEN, A LEADING NATIONAL FIRM, Encourages Graphic Packaging Holding Company Investors with Losses in Excess of $100

New York, New York--(. - July 3, 2026) - WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of securities of Graphic Packaging Holding Company (NYSE: GPK) betwee