6-K

ArcelorMittal (MT)

6-K 2026-03-30 For: 2026-03-30
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Added on April 10, 2026

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 March 30, 2026

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 ☐

On March 27, 2026, 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 ArcelorMittal announces publication of the 2025 statutory financial statements of ArcelorMittal parent company
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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 30 March 2026

By: /s/ Henk Scheffer

Name: Henk Scheffer

Title: Company Secretary & Group Compliance & Data Protection Officer

Document

Exhibit 99.1

image_0a.jpg

press release

ArcelorMittal announces publication of the 2025 statutory financial statements of ArcelorMittal parent company

27 March 2026, 17:45 CET

ArcelorMittal has published the statutory financial statements of ArcelorMittal parent company for the year ended 31 December 2025.

These financial statements have been filed with the electronic database of the Luxembourg Stock Exchange (www.bourse.lu) and are available on http://corporate.arcelormittal.com in the Corporate Library.

ENDS

About ArcelorMittal

ArcelorMittal is one of the world’s leading integrated steel and mining companies with a presence in 60 countries and primary steelmaking operations in 14 countries. It is the largest steel producer in Europe, among the largest in the Americas, and has a growing presence in Asia through its joint venture AM/NS India. ArcelorMittal sells its products to a diverse range of customers including the automotive, engineering, construction and machinery industries, and in 2025 generated revenues of $61.4 billion, produced 55.6 million metric tonnes of crude steel and, 48.8 million tonnes of iron ore. Our purpose is to produce smarter steels for people and planet. Steels made using innovative processes which use less energy, emit significantly less carbon and reduce costs. Steels that are cleaner, stronger and reusable. Steels for the renewable energy infrastructure that will support societies as they transform through this century. With steel at our core, our inventive people and an entrepreneurial culture at heart, we will support the world in making that change.

ArcelorMittal is listed on the stock exchanges of New York (MT), Amsterdam (MT), Paris (MT), Luxembourg (MT) and on the Spanish stock exchanges of Barcelona, Bilbao, Madrid and Valencia (MTS). http://corporate.arcelormittal.com/

ArcelorMittal Investor Relations contact information
General +44 20 7543 1128
Retail +44 20 3214 2893

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Bonds/Credit +33 171 921 026
Bonds/Credit +33 171 921 026
ArcelorMittal Corporate Communications contact information
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Paul Weigh
Tel: +44 20 3214 2419
E-mail press@arcelormittal.com

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