Bylaw Amendment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC  20549 ​ FORM 8-K ​ Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 ​ October 23, 2024 Date of Report (Date of earliest event reported) ​ BALL CORPORATION (Exact name of Registrant as specified in its charter) ​ ​ ​ ​ ​ ​ ​ ​ ​ Indiana ​ 001-07349 ​ 35-0160610 ​ ​ (State of ​ (Commission ​ (IRS Employer ​ ​ Incorporation) ​ File No.) ​ Identification No.) ​ ​ 9200 W. 108 th Circle , P.O. Box 5000 , Westminster , CO   80021-2510 (Address of principal executive offices, including ZIP Code) ​ ( 303 ) 469-3131 (Registrant’s telephone number, including area code) ​ Not Applicable (Former name or former address, if changed since last report) ​ 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 (see General Instruction A.2. below): ​ ​ ​ ☐ 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)) ​ 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). ​ Emerging growth company ☐ ​ ​ 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. ☐ ​ 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, without par value BALL NYSE ​ ​ ​ ​ ​ ​ Ball Corporation Current Report on Form 8-K Dated October 23, 2024 Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year On October 23, 2024, the Board of Directors of the Ball Corporation (the “Company”) amended the Bylaws of the Company to decrease the number of directors from twelve to eleven. Exhibit 3(ii) attached hereto provides the text of the amendment. Item 9.01. Financial Statements and Exhibits. (d) Exhibits. 4 Exhibit No. Description 3.ii Article 3, Section A of the Amended Bylaws 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) ​ ​ ​ Ball Corporation Form 8-K October 23, 2024 ​ ​ ​ EXHIBIT INDEX ​ ​ ​ ​ Description ​ Exhibit ​ ​ ​ ​ ​ ​ Article 3, Section A of the Amended Bylaws ​ 3.ii ​ ​ 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 hereunto duly authorized. ​ ​ ​ ​ ​ ​ ​ BALL CORPORATION ​ (Registrant) ​ ​ ​ ​ ​ ​ ​ By: /s/ Hannah Lim-Johnson ​ ​ Hannah Lim-Johnson ​ ​ Title: Senior Vice President and Chief Legal Officer ​ ​ ​ ​ Date: October 25, 2024 ​ ​ ​ ​ ​