X0508 4 2026-01-01 0001408075 GRAPHIC PACKAGING HOLDING CO GPK 0002002890 Rietbroek Robbert 1500 RIVEREDGE PARKWAY ATLANTA GA 30328 true true false false President and CEO false Service-Based Restricted Stock Units 0.00 2026-01-01 4 A false 265605 0 A Common Stock 265605 265605 D The Service-Based Restricted Stock Units vest and become payable in three substantially equal tranches on the first, second and third anniversaries of the date of the grant, except in the event of death, disability, retirement, involuntary termination or termination for good reason. The Service-Based Restricted Stock Units expire upon their conversion and payout in shares of the Company's Common Stock. /s/ Robbert Rietbroek, by Laura Lynn Church, Attorney-in-Fact 2026-01-05