As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of ArcelorMittal. The largest reported stake is Lumen Investments S.A R.L.'s, at 44.7%. One filing is on record since March 19, 2026 (Schedule 13D/A, March 19, 2026).
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ArcelorMittal has 1 Schedule 13D or 13G filing on record since 2026-03-19. 1 holder's latest filing reports 5% or more of ordinary shares. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Lumen Investments S.A R.L. | 44.7% | 275,840,595 | SCHEDULE 13D/A, 2026-03-19 | 2026-03-05 |
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Purpose of Transaction (Item 4)
Lumen Investments S.A R.L.
The first two disclosure paragraphs of the response set forth in Item 4 of the Statement are hereby amended by deleting the paragraphs in their entirety and replacing them with the following: On April 7, 2025, ArcelorMittal announced a new share buy-back program with share repurchases to be conducted in tranches that may be announced through May 2030 (the "Buy-Back Program"). On such date, ArcelorMittal also announced its intention to repurchase up to 10,000,000 shares under the first tranche of the program. The actual amount of the ArcelorMittal Shares to be repurchased in the various tranches pursuant to the Buy-Back Program will depend on the level of post-dividend free cash flow generated over the period. To date, none of the Reporting Persons have sold any ArcelorMittal Shares in the Buy-Back Program. On March 5, 2026, ArcelorMittal and Lumen entered into a Share Repurchase Agreement (as defined below) in connection with the Buy-Back Program. On each trading day during which ArcelorMittal conducts purchases under the Buy-Back Program, ArcelorMittal and Lumen have agreed to purchase and sell, respectively, a number of ArcelorMittal Shares, such that the number of ArcelorMittal Shares so purchased and sold represents 44.6% of the sum of: (i) the total number of shares purchased by ArcelorMittal under the Buy-Back Program (other than from Lumen) and (ii) the number of ArcelorMittal Shares purchased by ArcelorMittal from Lumen pursuant to the Share Repurchase Agreement, …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-03-19; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-03-19 | Lumen Investments S.A R.L. | 44.7% | SCHEDULE 13D/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.