Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On September 3, 2026, Graphic Packaging International, LLC (“Graphic Packaging” or the “Company”), the primary operating subsidiary of Graphic Packaging Holding Company, entered into a loan agreement with the Mission Economic Development Corporation (“MEDC”) for the proceeds of the MEDC’s offering of $115.2 million aggregate principal amount of tax-exempt “green” bonds due 2064 w…

Other Events. On August 14, 2026, a purported stockholder of Graphic Packaging Holding Company (“GPHC”) filed a derivative lawsuit against GPHC and certain current and former officers and directors as individual defendants (the “August 2026 Derivative Action”). The August 2026 Derivative Action asserts claims for violations of federal securities laws and for breach of fiduciary duty, aiding and abetting breach of fiduciary duty, waste of corporate assets and unjust enrichment. The allegations…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On August 4, 2026, Graphic Packaging Holding Company issued a press release reporting its second quarter 2026 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this

Material Modifications to Rights of Security Holders The information set forth in

Chairman of the Board — Mr. Philip R. Martens: Mr. Philip R. Martens retired from his position as Chairman of the Board, and Mr. Larry M. Venturelli was elected as the new Chairman.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On May 19, 2026, Graphic Packaging International, LLC (“Graphic Packaging”), the primary operating subsidiary of Graphic Packaging Holding Company, entered into a loan agreement with the Mission Economic Development Corporation (“MEDC”) for the proceeds of the MEDC’s offering of approximately $141.4 million aggregate principal amount of tax-exempt “green” bonds due 2064 with a ma…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On May 5, 2026, Graphic Packaging Holding Company issued a press release reporting its first quarter 2026 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this

Director — Mr. Jeffrey M. Stafeil: Appointment of a new independent director to the Board.

Creation of a Direct Financial Obligation or an Obligation under Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Entry into a Material Definitive Agreement. On February 26, 2026, Graphic Packaging Holding Company (the “Company”), Graphic Packaging International Partners, LLC (“GPIP”), Graphic Packaging International, LLC, the primary operating subsidiary of the Company (“GPIL”), and certain subsidiaries of GPIL entered into Amendment No. 1 (the “Amendment”) to the Fifth Amended and Restated Credit Agreement, dated June 3, 2024 (as amended by the Amendment, the “Credit Agreement”), by and among the Compa…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On February 3, 2026, Graphic Packaging Holding Company issued a press release reporting its fourth quarter and full year 2025 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this

General Counsel — Lauren S. Tashma: The Executive Vice President, General Counsel, and Secretary is departing her role with the company, initiating a transition process and receiving separation benefits.

and in Exhibit 99.1 attached hereto is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that section. Furthermore, such information shall not be deemed to be incorporated by reference into any registration statement or other filing of the Company under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference therein. Forwa…

Entry into a Material Definitive Agreement. 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 bonu…

and in Exhibits 99.1 and 99.2 attached hereto is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that section. Furthermore, such information shall not be deemed to be incorporated by reference into any registration statement or other filing of the Company under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference ther…

CEO — Michael P. Doss: The CEO is departing with a named external successor (Robbert E. Rietbroek) and a structured transition period, indicating an orderly succession rather than a sudden loss of leadership.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On November 4, 2025, Graphic Packaging Holding Company issued a press release reporting its third quarter 2025 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this

Entry into a Material Definitive Agreement. On October 31, 2025, Graphic Packaging International, LLC, a Delaware limited liability company (“GPIL”), a wholly-owned subsidiary of Graphic Packaging International Partners, LLC (“Parent”) and the primary operating subsidiary of Graphic Packaging Holding Company, entered into an Incremental Facility Amendment (the “Incremental Amendment”) by and among GPIL, Parent and certain subsidiaries of Parent, as guarantors, Bank of America, N.A., as Admini…

Creating of a Direct Financial Obligation or an Obligation under Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Chief Financial Officer — Stephen R. Scherger: Mr. Stephen R. Scherger resigned as Executive Vice President and Chief Financial Officer.

Director — Dean A. Scarborough: A director resigned from the board without any stated disagreement with the company, representing a standard board departure.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On July 29, 2025, Graphic Packaging Holding Company issued a press release reporting its second quarter 2025 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this

Material Modifications to Rights of Security Holders The information set forth in

Executive Vice President and President, Americas — Maggie Bidlingmaier: The resignation of the EVP and President, Americas was accompanied by the immediate appointment of a named internal successor, indicating an orderly succession rather than a sudden loss of leadership.

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On May 1, 2025, Graphic Packaging Holding Company issued a press release reporting its first quarter 2025 results. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference. As provided in General Instruction B.2 of Form 8-K, the information in this