Robbert Rietbroek - 01 Jan 2026 Form 4 Insider Report for GRAPHIC PACKAGING HOLDING CO (GPK)

Role: President and CEO, Director
Signature: /s/ Robbert Rietbroek, by Laura Lynn Church, Attorney-in-Fact
Issuer symbol: GPK
Transactions as of: 01 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Jan 2026, 16:04:37 UTC
Previous filing: 14 Aug 2025
Next filing: 26 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Rietbroek Robbert	President and CEO, Director	1500 RIVEREDGE PARKWAY, ATLANTA	/s/ Robbert Rietbroek, by Laura Lynn Church, Attorney-in-Fact	05 Jan 2026	0002002890

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GPK	Service-Based Restricted Stock Units	Award	$0	+265,605		$0.000000	265,605	01 Jan 2026	Common Stock	265,605	$0.000000	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	The Service-Based Restricted Stock Units expire upon their conversion and payout in shares of the Company's Common Stock.