Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

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Dated October 4, 2023

Commission File Number: 001-35788

ARCELORMITTAL

(Translation of registrant’s name into English)

24-26, Boulevard d’Avranches

L-1160 Luxembourg

Grand Duchy of Luxembourg

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

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On October 4, 2023, ArcelorMittal published the press release attached hereto as Exhibit 99.1 and hereby incorporated by reference into this report on Form 6-K.

Exhibit Index

Exhibit No.			Description

Exhibit 99.1			Press release, dated October 4, 2023, Blackrock Inc. shareholding notification

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SIGNATURES

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.

ARCELORMITTAL

Date 4 October 2023

By: /s/ Henk Scheffer

Name: Henk Scheffer

Title: Company Secretary & Group Compliance & Data Protection Officer

Exhibit 99.1

Blackrock Inc. shareholding notification

4 October 2023, 9:45 CET

ArcelorMittal (the ‘Company’) announces that on 18 and on 19 September 2023 it received shareholding notifications from BlackRock, Inc. According to theses notifications, the following threshold of (potential) voting rights was reached:

o5.82% on 18 September 2023, and

o5.83% on 19 September 2023.

These notifications are available in the Luxembourg Stock Exchange’s OAM electronic database on www.bourse.lu and on the Company’s website corporate.arcelormittal.com under ‘Investors - Corporate Governance - Shareholding structure’.

These notifications are published in reference to the Luxembourg law and the Grand Ducal regulation of 11 January 2008, on transparency requirements for issuers of securities (‘Transparency Law’) in view of a shareholding notification going above or below the 5% of voting rights threshold.

ENDS

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