Executive Change · 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 ​ June 3, 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 , 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 June 3, 2024 ​ Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. ​ ​ Appointment of Director ​ On June 3, 2024, the Ball Corporation Board of Directors formally elected Aaron Erter as a Class I director of the Company.  Mr. Erter is the current CEO of James Hardie Industries plc. Mr. Erter previously served in key leadership roles at Plz Corp, The Sherwin-Williams Company and The Valspar Corporation. ​ A copy of the press release is attached hereto as Exhibit 99.1. ​ ​ ​ Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year. ​ ​ On June 3, 2024, the Board of Directors of the Company amended the Bylaws to increase the Board of Directors from eleven to twelve, by increasing to five the number of director positions in Class I. Exhibit 3(ii) attached hereto provides the text of the amendment. ​ ​ Item 9.01. Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description      3.ii Article 3, Section A of the Amended Bylaws    99.1 Press release dated June 3, 2024     104 Cover Page Interactive Data File (embedded within the Inline XBRL document) ​ ​ ​ ​ 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     ​                    Date: June 3, 2024 By: /s/ Hannah Lim-Johnson       Name: Hannah Lim-Johnson       Title: Senior Vice President and Chief Legal Officer   ​ ​ ​ ​ ​ ​