# ALNYLAM PHARMACEUTICALS, INC. — DEFA14A

ALNYLAM PHARMACEUTICALS, INC. of CAMBRIDGE, MA filed a DEFA14A with the SEC on 2026-04-06. Industry: Pharmaceutical Preparations.

## Filing

- Filed: 2026-04-06
- Form: DEFA14A
- Accession: 0001628280-26-023924
- Registrant: ALNYLAM PHARMACEUTICALS, INC.
- CIK: 0001178670
- Industry (SIC): Pharmaceutical Preparations (2834)
- Location: CAMBRIDGE, MA

## Documents (4)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (35)

_Showing 12 of 35 filings._

| Filed | Form |
| --- | --- |
| 2026-04-06 | DEFA14A |
| [2026-04-06](https://search.stillhousedata.com/proxy/0001628280-26-023923) | DEF 14A |
| [2025-04-04](https://search.stillhousedata.com/proxy/0001178670-25-000044) | DEFA14A |
| [2025-03-24](https://search.stillhousedata.com/proxy/0001193125-25-061424) | DEFA14A |
| [2025-03-24](https://search.stillhousedata.com/proxy/0001178670-25-000040) | DEF 14A |
| [2025-03-14](https://search.stillhousedata.com/proxy/0001178670-25-000035) | PRE 14A |
| [2024-04-01](https://search.stillhousedata.com/proxy/0001193125-24-083471) | DEFA14A |
| [2024-04-01](https://search.stillhousedata.com/proxy/0001193125-24-083454) | DEF 14A |
| [2023-04-03](https://search.stillhousedata.com/proxy/0001193125-23-089620) | DEFA14A |
| [2023-04-03](https://search.stillhousedata.com/proxy/0001193125-23-089611) | DEF 14A |
| [2022-04-05](https://search.stillhousedata.com/proxy/0001193125-22-096193) | DEFA14A |
| [2022-04-05](https://search.stillhousedata.com/proxy/0001193125-22-096188) | DEF 14A |

## More

- [CIK 1178670 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1178670&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001628280-26-023924.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.