# EDGAR Filing Document

**Accession Number:** 0001243429
**File Stem:** 0001243429-26-000044
**Filing Date:** 2026-5
**Character Count:** 7292
**Document Hash:** f8c675bbbf620b097a846a20aa2a12bf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001243429-26-000044.hdr.sgml**: 20260519

**ACCESSION NUMBER**: 0001243429-26-000044

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260519

**FILED AS OF DATE**: 20260519

**DATE AS OF CHANGE**: 20260519

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ArcelorMittal
- **CENTRAL INDEX KEY:** 0001243429
- **STANDARD INDUSTRIAL CLASSIFICATION:** STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35788
- **FILM NUMBER:** 26996696

**BUSINESS ADDRESS:**
- **STREET 1:** 24-26, BOULEVARD D?AVRANCHES
- **STREET 2:** L-1160 LUXEMBOURG
- **CITY:** GRAND DUCHY OF LUXEMBOURG
- **STATE:** N4
- **ZIP:** 00000
- **BUSINESS PHONE:** 35247922151

**MAIL ADDRESS:**
- **STREET 1:** 24-26, BOULEVARD D?AVRANCHES
- **STREET 2:** L-1160 LUXEMBOURG
- **CITY:** GRAND DUCHY OF LUXEMBOURG
- **STATE:** N4
- **ZIP:** 00000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ARCELOR
- **DATE OF NAME CHANGE:** 20030618

**UNITED STATES<br>SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**—————————**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER<br>PURSUANT TO RULE 13a-16 OR 15d-16 <br>UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**—————————**

Dated May 19, 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 ☒&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form 40-F ☐

&nbsp;&nbsp;&nbsp;&nbsp;

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On May 19, 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**

<u>Exhibit No.</u> <u>Description</u>

<u>[Exhibit 99.1](exhibit99151926.htm)</u> ArcelorMittal unlocks value through partial sell-down of its shareholding in Vallourec with proceeds allocated to share buybacks

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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 19 May 2026

By: <u>/s/ Henk Scheffer&nbsp;&nbsp;&nbsp;&nbsp;</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Name: Henk Scheffer

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title: Company Secretary & Group Compliance & Data Protection Officer

## Exhibit 99.1

Exhibit 99.1

![image_0a.jpg](image_0a.jpg)

press release

**ArcelorMittal unlocks value through partial sell-down of its shareholding in Vallourec with proceeds allocated to share buybacks**

**19 May 2026, 08:00 CET**

ArcelorMittal SA ("ArcelorMittal" or "the Company") today announces the successful pricing of its secondary offering of shares in Vallourec SA ("Vallourec"). ArcelorMittal has sold approximately 23.9 million shares in Vallourec, representing approximately 10.0% of Vallourec's outstanding share capital, at an offer price of EUR 24.00 per share, raising gross proceeds of approximately US$667 million. The transaction was conducted via an accelerated bookbuilding process to institutional investors.

The transaction reflects ArcelorMittal's disciplined approach to capital allocation and portfolio management. The sale proceeds will be returned to ArcelorMittal shareholders via the Company's ongoing share buyback programme.

ArcelorMittal remains supportive of Vallourec's strategy and management team and continues to see value in the company. Following the settlement of the transaction, ArcelorMittal will retain approximately 17.3% of Vallourec's share capital and will continue to hold one seat on Vallourec's Board of Directors.

Settlement is expected to occur on or around 21 May 2026.

ArcelorMittal has agreed to a lock-up in its remaining stake in Vallourec for 90 calendar days following the settlement date, subject to customary carve-outs.

**Commenting, Genuino Christino, Chief Financial Officer, ArcelorMittal, said:**

*"This step underlines our commitment to deploying capital in a way that delivers clear, measurable returns for shareholders. By realising value and returning the proceeds to shareholders through buybacks, we are converting a strong investment outcome into immediate, tangible benefits.*

*"More broadly, it is another example of how we have consistently executed our strategy in recent years - investing in high-return opportunities to develop ArcelorMittal into a more resilient, higher-quality business, capable of delivering sustainable value for shareholders through the cycle."*

ArcelorMittal acquired its initial shareholding in Vallourec in 2024 (https://corporate.arcelormittal.com/media/news/regulatory-news/arcelormittal-acquires-strategic-stake-in-vallourec) and continues to view the company as a high-quality business with a strong market position.

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**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/* 

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| | |
|:---|:---|
| **ArcelorMittal Investor Relations contact information** | **ArcelorMittal Investor Relations contact information** |
| General  | +44 20 7543 1128  |
| Retail  | +44 20 3214 2893  |
| Bonds/Credit  | +33 171 921 026  |
| E-mail | investor.relations@arcelormittal.com  |

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| | |
|:---|:---|
| **ArcelorMittal Corporate Communications contact information** | **ArcelorMittal Corporate Communications contact information** |
| Paul Weigh  |  |
| Tel:  | +44 20 3214 2419  |
| E-mail | press@arcelormittal.com  |

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