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 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Nov 5, 2026 | Nov 2, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| 10-Q | Quarterly report | Oct 29, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 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 |
| 10-Q | Quarterly report | Jul 30, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2026 | Jul 30, 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 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 27, 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 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 | — |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2026 | Apr 30, 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 |
| ARS | Annual report to shareholders | Apr 6, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 6, 2026 | — |
| DEF 14A | Proxy statement | Apr 6, 2026 | May 20, 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 |
| 8-K |
Current report
Officer or director change
|
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 | — |
| S-8 | Employee stock plan registration | Feb 12, 2026 | — |
| 10-K | Annual report | Feb 12, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 12, 2026 | Feb 12, 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 | — |
| 8-K |
Current report
Results of operations
|
Jan 12, 2026 | Jan 11, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 3 | Initial insider ownership | Jan 7, 2026 | Jan 5, 2026 |
| 8-K |
Current report
Other events
|
Dec 11, 2025 | Dec 10, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2025 | Dec 2, 2025 |
| 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 | — |
| 10-Q | Quarterly report | Oct 30, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2025 | Oct 30, 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 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 3, 2025 | Sep 30, 2025 |
| 144 | Notice of proposed sale | Oct 3, 2025 | — |
| 3 | Initial insider ownership | Sep 22, 2025 | Sep 15, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Sep 12, 2025 | Sep 12, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 8-K |
Current report
Other events
|
Sep 10, 2025 | Sep 8, 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 | — |
| 10-Q | Quarterly report | Jul 31, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 18, 2025 | Jun 12, 2025 |
| UPLOAD | Letter from the SEC | Jun 17, 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 | — |
| CORRESP | Letter to the SEC | May 22, 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 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 13, 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 | 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 |
| UPLOAD | Letter from the SEC | May 9, 2025 | — |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| 10-Q | Quarterly report | May 1, 2025 | Mar 31, 2025 |
| 8-K | Current report | May 1, 2025 | May 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 7, 2025 | — |
| DEFA14A | Additional proxy material | Apr 4, 2025 | — |
| 4 | Insider transaction | Mar 25, 2025 | Mar 21, 2025 |
| 4 | Insider transaction | Mar 25, 2025 | Mar 24, 2025 |
| ARS | Annual report to shareholders | Mar 24, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 24, 2025 | — |
| DEF 14A | Proxy statement | Mar 24, 2025 | May 8, 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 | — |
| 8-K |
Current report
Other events
|
Mar 21, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 14, 2025 | May 8, 2025 |
| 8-K |
Current report
Officer or director change
|
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 |
| 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 | — |
| 10-K | Annual report | Feb 13, 2025 | Dec 31, 2024 |
| 8-K | Current report | Feb 13, 2025 | 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 | — |
| 8-K |
Current report
Results of operations
|
Jan 13, 2025 | Jan 12, 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 | — |
| 10-Q | Quarterly report | Oct 31, 2024 | Sep 30, 2024 |
| 8-K | Current report | Oct 31, 2024 | Oct 31, 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 |
| UPLOAD | Letter from the SEC | Sep 25, 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.