Material Agreement (Form 8-K)

On December 19, 2025, the Compensation and Management Committee of the Board of Directors of Graphic Packaging Holding Company ("GPHC"), approved a retention package for Mr. Joseph P. Yost, the Executive Vice President and President, Americas of GPHC and Graphic Packaging International, LLC ("GPI" or the "Company"). Such package consists of a cash retention bonus and a grant of Service Restricted Stock Units ("Service RSUs"). The cash retention bonus is pursuant to the terms of a Retention Bonus Agreement dated December 22, 2025 between GPI and Mr. Yost (the "Agreement"), a copy of which is attached hereto as Exhibit 10.1. Pursuant to the Agreement, Mr. Yost will receive a lump-sumpayment of $2,000,000 (less applicable taxes and withholdings) on (i) the next regularly-scheduled pay date following January 2, 2027 if he remains employed by GPI or one of its subsidiaries through such date; or (ii) the next regularly-scheduled pay date following the date of termination of his employment due to death or Disability, by the Company or one of its subsidiaries without Cause or by Mr. Yost for Good Reason. For purposes of the Agreement, the term "Disability" shall have the meaning provided under the Company's Long-Term Disability Plan and the term "Cause" shall have the meaning set forth in the Company's Termination of Employment Policy. The term "Good Reason" shall mean termination of employment initiated by Mr. Yost within 180 days following any of the following events taken without Mr. Yost's consent, provided that Mr. Yost has given the Company written notice of such event within 30 days after the first occurrence of such event and the Company has not cured such event within 30 days thereafter: (x) a material diminution of Mr. Yost's authority, job duties, and responsibilities; or (y) a material change in the geographic location at which Mr. Yost is required to perform services such that he must permanently relocate more than 50 miles from his current residence; or (z) a reduction of Mr. Yost's base salary in excess of 10%, unless the same percentage reduction is uniformly applied to all similarly situated employees.

The grant of Service RSUs will have a value of $2,000,000 on the date of grant and be effective as of January 2, 2026. The Service RSUs will vest and become payable on January 2, 2027, assuming Mr. Yost remains an employee of GPI or one of its subsidiaries through such date.