Alnylam Pharmaceuticals, Inc. SEC filings ALNY
Alnylam Pharmaceuticals, Inc. has 1,002 filings in SEC EDGAR's recent list, going back to Sep 12, 2014. Its latest annual report, Form ARS, was filed on Apr 6, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (officer or director change, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| 4 | Insider transaction | Oct 6, 2026 | Oct 2, 2026 |
| 144 | Notice of proposed sale | Oct 2, 2026 | — |
| 4 | Insider transaction | Sep 22, 2026 | Sep 19, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 3 | Initial insider ownership | Jun 3, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 6, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 7, 2026 | Apr 2, 2026 |
| 3 | Initial insider ownership | Apr 7, 2026 | Mar 25, 2026 |
| 144 | Notice of proposed sale | Apr 6, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 6, 2026 | Mar 4, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 144 | Notice of proposed sale | Feb 17, 2026 | — |
| 4 | Insider transaction | Jan 14, 2026 | Jan 11, 2026 |
| 4 | Insider transaction | Jan 14, 2026 | Jan 11, 2026 |
| 4 | Insider transaction | Jan 14, 2026 | Jan 11, 2026 |
| 4 | Insider transaction | Jan 14, 2026 | Jan 11, 2026 |
| 4 | Insider transaction | Jan 14, 2026 | Jan 11, 2026 |
| 144 | Notice of proposed sale | Jan 13, 2026 | — |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 3 | Initial insider ownership | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 144 | Notice of proposed sale | Nov 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 144 | Notice of proposed sale | Oct 3, 2025 | — |
| 3 | Initial insider ownership | Sep 22, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 144 | Notice of proposed sale | Sep 9, 2025 | — |
| 4 | Insider transaction | Sep 2, 2025 | Aug 29, 2025 |
| 144 | Notice of proposed sale | Aug 29, 2025 | — |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 18, 2025 |
| 144 | Notice of proposed sale | Aug 19, 2025 | — |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| 4 | Insider transaction | Aug 15, 2025 | Aug 14, 2025 |
| 144 | Notice of proposed sale | Aug 14, 2025 | — |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 144 | Notice of proposed sale | Jun 2, 2025 | — |
| 144 | Notice of proposed sale | May 30, 2025 | — |
| 144 | Notice of proposed sale | May 30, 2025 | — |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 16, 2025 |
| 144 | Notice of proposed sale | May 15, 2025 | — |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | Aug 29, 2024 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 7, 2025 | — |
| 4 | Insider transaction | Mar 25, 2025 | Mar 21, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 24, 2025 |
| 144 | Notice of proposed sale | Mar 24, 2025 | — |
| 144 | Notice of proposed sale | Mar 24, 2025 | — |
| 144 | Notice of proposed sale | Mar 21, 2025 | — |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 13, 2025 |
| 144 | Notice of proposed sale | Feb 18, 2025 | — |
| 144 | Notice of proposed sale | Feb 18, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2025 | — |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 144 | Notice of proposed sale | Jan 27, 2025 | — |
| 4 | Insider transaction | Jan 24, 2025 | Jan 23, 2025 |
| 144 | Notice of proposed sale | Jan 23, 2025 | — |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 144 | Notice of proposed sale | Dec 12, 2024 | — |
| 4 | Insider transaction | Nov 27, 2024 | Nov 25, 2024 |
| 4 | Insider transaction | Nov 27, 2024 | Nov 25, 2024 |
| 4 | Insider transaction | Nov 27, 2024 | Nov 25, 2024 |
| 4 | Insider transaction | Nov 27, 2024 | Nov 25, 2024 |
| 4 | Insider transaction | Nov 27, 2024 | Nov 25, 2024 |
| 144 | Notice of proposed sale | Nov 27, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Oct 10, 2024 | Oct 8, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 3 | Initial insider ownership | Oct 3, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Aug 22, 2024 | Aug 20, 2024 |
| 144 | Notice of proposed sale | Aug 20, 2024 | — |
| 4 | Insider transaction | Aug 14, 2024 | Aug 12, 2024 |
| 144 | Notice of proposed sale | Aug 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 12, 2024 | — |
| 4 | Insider transaction | Aug 8, 2024 | Aug 6, 2024 |
| 144 | Notice of proposed sale | Aug 6, 2024 | — |
| 4 | Insider transaction | Aug 2, 2024 | Aug 1, 2024 |
| 144 | Notice of proposed sale | Aug 1, 2024 | — |
| 4 | Insider transaction | Jul 12, 2024 | Jul 11, 2024 |
| 144 | Notice of proposed sale | Jul 11, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 5, 2024 | — |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 26, 2024 | Jun 24, 2024 |
| 144 | Notice of proposed sale | Jun 25, 2024 | — |
| 144 | Notice of proposed sale | Jun 24, 2024 | — |
| 4 | Insider transaction | May 31, 2024 | May 29, 2024 |
| 144 | Notice of proposed sale | May 29, 2024 | — |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 3 | Initial insider ownership | Mar 28, 2024 | Mar 20, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 5, 2024 | Mar 1, 2024 |
| 4 | Insider transaction | Mar 1, 2024 | Feb 29, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 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
- ALNY (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Cambridge, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1178670
- Former names
- ALNYLAM PHARMACEUTICALS INC (until Jul 2, 2004)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.