SK Telecom Co Ltd SEC filings SKM
SK Telecom Co Ltd has 872 filings in SEC EDGAR's recent list, going back to May 10, 1999. Its latest annual report, Form 20-F, was filed on Apr 29, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 4, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 2, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 28, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| 3/A | Primary document | Feb 20, 2026 | Feb 20, 2026 |
| 3 | Initial insider ownership | Feb 19, 2026 | Feb 19, 2026 |
| 3 | Initial insider ownership | Dec 23, 2024 | Dec 13, 2024 |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 20, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 9, 2012 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2012 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2012 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 25, 2009 | — |
| 4 | Insider transaction | Nov 25, 2009 | Nov 24, 2009 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 29, 2009 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 5, 2008 | — |
| 4 | Insider transaction | Dec 4, 2008 | Dec 2, 2008 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 2, 2008 | — |
| 3 | Initial insider ownership | Sep 9, 2008 | Aug 22, 2008 |
| SC 13D | Ownership over 5% (active) | Sep 5, 2008 | — |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2008 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 17, 2008 | — |
| SC 13G | Ownership over 5% (passive) | Sep 12, 2007 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2007 | — |
| SC 13G | Ownership over 5% (passive) | Mar 10, 2006 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 10, 2005 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2003 | — |
| SC 13D | Ownership over 5% (active) | Aug 13, 2002 | — |
| SC 13G | Ownership over 5% (passive) | Aug 9, 2002 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 23, 1999 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 5, 1999 | — |
| SC 13D | Ownership over 5% (active) | Jun 15, 1999 | — |
| SC 13G/A | Amended ownership over 5% (passive) | May 10, 1999 | — |
Showing 35 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
- Radiotelephone Communications (SIC 4812)
- Listed as
- SKM (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Seoul
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1015650
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.