GPK ▼ -0.1% - Graphic Packaging Holding Company $GPK - Graphic Packaging Holding Company Appoints Tatiana Berardinelli Chief Human Resources Officer Graphic Packaging Holding Company appointed Tatiana Berardinelli as Chief Human Resources Officer, a personnel move that had minimal market impact as the stock declined just 0.1% on the news. 03-SEP-2026 07:30 AM ET