UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~Washington~~WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of ~~the~~Report ~~Securities~~(Date ~~Exchange~~of ~~Act~~earliest ofevent ~~1934~~reported): May 5, 2026

Date of Report (Date of earliest event reported): March 8, 2026

GRAPHIC PACKAGING HOLDING COMPANY

(Exact name of registrant as specified in its charter)

Delaware		~~001-33988~~	001-33988	~~26-0405422~~		26-0405422
(State or other jurisdiction of incorporation)		~~(Commission File Number)~~	(Commission File Number)	~~(IRS Employer Identification No.)~~		(I.R.S. Employer Identification No.)

1500 Riveredge Parkway, Suite 100

Atlanta, Georgia 30328

(Address of principal executive offices)

(Zip Code)

(770) 240-7200

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common Stock, $0.01 par value per share	GPK	New York Stock Exchange

Title of Each Class		TradingSymbol		Name of Each Exchange on Which Registered
Common Stock, $0.01 par value per share		GPK		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

~~Securities~~ Emerging ~~registered~~growth ~~pursuant~~company ☐ ~~to Section 12(g) of the Act: None~~

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

~~☐ Indicate~~ITEM ~~by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230~~2.~~405~~02. ofRESULTS ~~this~~OF ~~chapter)~~OPERATIONS orAND ~~Rule~~FINANCIAL ~~12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).~~CONDITION

~~☐ If~~On anMay 5, ~~emerging growth company~~2026, ~~indicate~~Graphic byPackaging ~~check~~Holding ~~mark~~Company ifissued ~~the~~a ~~registrant~~press ~~has~~release ~~elected~~reporting ~~not~~its tofirst ~~use~~quarter ~~the~~2026 ~~extended~~results. ~~transition~~A ~~period~~copy ~~for~~of ~~complying~~the ~~with~~press ~~any~~release ~~new~~is orfurnished ~~revised~~herewith ~~financial~~as ~~accounting~~Exhibit ~~standards~~99.1 ~~provided~~and ~~pursuant~~is toincorporated ~~Section 13(a)~~herein ofby ~~the Exchange Act~~reference.

As provided in General Instruction B.2 of Form 8-K, the information in this Item 52.02. ~~Departure~~and Exhibit 99.1 of ~~Directors~~this orForm ~~Certain~~8-K ~~Officers;~~are ~~Election~~being furnished and shall not be deemed to be “filed” for purposes of ~~Directors;~~Section ~~Appointment~~18 of ~~Certain~~the ~~Officers;~~Securities ~~Compensatory~~Exchange ~~Arrangements~~Act of ~~Certain~~1934, ~~Officers~~as amended.

~~Effective~~ITEM ~~March 8, 2026, the Board of Directors of Graphic Packaging Holding Company (the “Company”) appointed Mr~~9. ~~Jeffrey M~~01. ~~Stafeil~~FINANCIAL toSTATEMENTS ~~the~~AND Board of Directors. Mr. Stafeil will serve as one of the Class I Directors, whose terms expire in 2026. He has not yet been assigned to serve on any Committee of the Board. Mr. Stafeil is an independent director of the Company and is not party to any transaction requiring disclosure pursuant to Item 404(a) of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended. EXHIBITS

~~- 2 -~~ Exhibits

Exhibit Number Description

SIGNATURE




99.1			Press release dated May 5, 2026 reporting first quarter 2026 results

104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


			SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

			GRAPHIC PACKAGING HOLDING COMPANY
			(Registrant)

Date: May 5, 2026			By: /s/ Laura Lynn Church
			Laura Lynn Church
			Vice President, Assistant General Counsel and Assistant Secretary

	By:	/s/ Laura Lynn Church
		Laura Lynn Church
Date: March 11, 2026		Vice President, Assistant General Counsel and Assistant Secretary

- 3 -

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