ArcelorMittal SEC filings AMSYF
ArcelorMittal has 1,002 filings in SEC EDGAR's recent list, going back to Jan 11, 2008. Its latest annual report, Form 20-F, was filed on Mar 6, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 5, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 19, 2026 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 1, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 9, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 3, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 23, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 19, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 2, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 22, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 10, 2021 | — |
| 4 | Insider transaction | Feb 25, 2021 | Feb 11, 2021 |
| SC 13G | Ownership over 5% (passive) | Feb 25, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 5, 2021 | — |
| 3 | Initial insider ownership | Dec 17, 2020 | Dec 9, 2020 |
| SC 13G | Ownership over 5% (passive) | Dec 17, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 29, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 13, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 12, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 15, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 5, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 26, 2014 | — |
| SC 13G | Ownership over 5% (passive) | Nov 24, 2014 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 11, 2013 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2011 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 23, 2010 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 12, 2010 | — |
| SC 13G | Ownership over 5% (passive) | Mar 1, 2010 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 20, 2009 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 12, 2009 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 8, 2009 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 3, 2009 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 13, 2009 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 19, 2008 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 9, 2008 | — |
| 4 | Insider transaction | Apr 9, 2008 | Apr 7, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 21, 2008 | — |
| 4 | Insider transaction | Mar 21, 2008 | Mar 19, 2008 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 4, 2008 | — |
Showing 40 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) (SIC 3312)
- Listed as
- MT (NYSE), AMSYF (OTC), ARCXF (OTC)
- Fiscal year ends
- December 31
- Headquarters
- Grand Duchy Of Luxembourg, Luxembourg
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1243429
- Former names
- ARCELOR (until Oct 1, 2007)
Other Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) companies
- Nucor Corp NUE
- Steel Dynamics Inc STLD
- Tenaris SA TS
- Posco Holdings Inc. PKX
- Carpenter Technology Corp CRS
- COMMERCIAL METALS Co CMC
- GRUPO SIMEC, S.A.B. de C.V. SIM
- SunCoke Energy, Inc. SXC
All 13 Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.