GPK - Graphic Packaging Holding Co (GPK) Q3 2020 Earnings Call Transcript October, 20 2020 08:30 PM Graphic Packaging Holding Company Image source: The Motley Fool. Graphic Packaging Holding Co (NYSE: GPK) Q3 2020 Earnings Call Oct 20, 2020 , 10:00 a.m. ET Operator Continue reading For further details see: Graphic Packaging Holding Co (GPK) Q3 2020 Earnings Call Transcript