Company: MT
Filing Date: 2025-03-10
Form Type: 20-F
Source: 0001243429-25-000017
Chunk: 0

Company: ArcelorMittal
Filing Date: 2025-03-10
Form: 20-F
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM 20-F

☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 001-35788

ARCELORMITTAL (Exact name of Registrant as specified in its charter) N/A (Translation of Registrant’s name into English)

Grand Duchy of Luxembourg (Jurisdiction of incorporation or organization) 24-26, Boulevard d’Avranches , L-1160 Luxembourg , Grand Duchy of Luxembourg (Address of principal executive offices) Henk Scheffer , Company Secretary, 24-26, Boulevard d’Avranches , L-1160 Luxembourg , Grand Duchy of Luxembourg . Fax: +352 2664 9649 (Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

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

| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| Ordinary Shares     | MT                | New York Stock Exchange                   |

Securities registered or to be registered pursuant to Section 12(g) of the Act: None Securities for which there is reporting obligation pursuant to Section 15(d) of the Act: None Indicate the number of outstanding shares of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report: Ordinary Shares 768,546,622 Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐ If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. Yes ☐ No �