Merck & Co., Inc. SEC filings MRK
Merck & Co., Inc. has 1,007 filings in SEC EDGAR's recent list, going back to May 29, 2018. Its latest annual report, Form ARS, was filed on Apr 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 1, 2026 |
| 3 | Initial insider ownership | Nov 3, 2026 | Nov 1, 2026 |
| 144 | Notice of proposed sale | Nov 2, 2026 | — |
| 3/A | Primary document | Oct 22, 2026 | May 1, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 3 | Initial insider ownership | Sep 1, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Aug 13, 2026 | Aug 13, 2026 |
| 144 | Notice of proposed sale | Aug 13, 2026 | — |
| 4 | Insider transaction | Aug 13, 2026 | Aug 12, 2026 |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 10, 2026 |
| 144 | Notice of proposed sale | Aug 11, 2026 | — |
| 144 | Notice of proposed sale | Aug 10, 2026 | — |
| 4 | Insider transaction | Aug 10, 2026 | Aug 6, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 6, 2026 |
| 13F-HR | Filing | Aug 7, 2026 | Jun 30, 2026 |
| 144 | Notice of proposed sale | Aug 6, 2026 | — |
| 144 | Notice of proposed sale | Aug 6, 2026 | — |
| 144 | Notice of proposed sale | Aug 5, 2026 | — |
| 144 | Notice of proposed sale | Aug 5, 2026 | — |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 13F-HR | Filing | May 13, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 2, 2026 |
| 3/A | Primary document | May 5, 2026 | May 1, 2026 |
| 3 | Initial insider ownership | May 4, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 4 | Insider transaction | Apr 1, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 31, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 3 | Initial insider ownership | Mar 12, 2026 | Mar 2, 2026 |
| 13F-HR | Filing | Feb 17, 2026 | Dec 31, 2025 |
| 144/A | Filing | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 12, 2026 | Feb 12, 2026 |
| 144 | Notice of proposed sale | Feb 10, 2026 | — |
| 4 | Insider transaction | Feb 10, 2026 | Feb 10, 2026 |
| 144 | Notice of proposed sale | Feb 9, 2026 | — |
| 144 | Notice of proposed sale | Feb 9, 2026 | — |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 144 | Notice of proposed sale | Feb 6, 2026 | — |
| 144 | Notice of proposed sale | Feb 6, 2026 | — |
| 4 | Insider transaction | Feb 6, 2026 | Feb 6, 2026 |
| 144 | Notice of proposed sale | Feb 6, 2026 | — |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 144 | Notice of proposed sale | Feb 5, 2026 | — |
| 144 | Notice of proposed sale | Feb 4, 2026 | — |
| 144 | Notice of proposed sale | Feb 4, 2026 | — |
| 144 | Notice of proposed sale | Feb 4, 2026 | — |
| 144 | Notice of proposed sale | Feb 4, 2026 | — |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 26, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 13F-HR | Filing | Nov 12, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Nov 12, 2025 | Nov 10, 2025 |
| 144 | Notice of proposed sale | Nov 10, 2025 | — |
| 4 | Insider transaction | Nov 4, 2025 | Nov 3, 2025 |
| 144 | Notice of proposed sale | Nov 3, 2025 | — |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 13F-HR | Filing | Aug 13, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 4, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 4, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 13F-HR | Filing | May 14, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 3, 2025 |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| 4/A | Primary document | May 2, 2025 | Apr 29, 2025 |
| 4/A | Primary document | May 2, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 144 | Notice of proposed sale | Apr 25, 2025 | — |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 6, 2025 | — |
| 4 | Insider transaction | Feb 20, 2025 | Feb 19, 2025 |
| 144 | Notice of proposed sale | Feb 19, 2025 | — |
| 13F-HR | Filing | Feb 14, 2025 | Dec 31, 2024 |
| 144 | Notice of proposed sale | Feb 13, 2025 | — |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 11, 2025 | Feb 8, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 144 | Notice of proposed sale | Feb 6, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 3, 2025 | — |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Jan 1, 2025 |
| 3 | Initial insider ownership | Jan 3, 2025 | Jan 1, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 23, 2024 | — |
| 3 | Initial insider ownership | Dec 23, 2024 | Dec 19, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 6, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 1, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 1, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
Showing 200 filings, the most recent 200. 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- MRK (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- NJ
- Headquarters
- Rahway, NJ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 310158
- Former names
- Merck & Co. Inc. (until Dec 9, 2014); SCHERING PLOUGH CORP (until Oct 29, 2009)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.