# EDGAR Filing Document

**Accession Number:** 0001178670
**File Stem:** 0001628280-26-023924
**Filing Date:** 2026-4
**Character Count:** 2484
**Document Hash:** 62cf9572c3c60a3e0df14c02dcee8ebf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-023924.hdr.sgml**: 20260406

**ACCESSION NUMBER**: 0001628280-26-023924

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20260406

**DATE AS OF CHANGE**: 20260406

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALNYLAM PHARMACEUTICALS, INC.
- **CENTRAL INDEX KEY:** 0001178670
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 770602661
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36407
- **FILM NUMBER:** 26841658

**BUSINESS ADDRESS:**
- **STREET 1:** 675 WEST KENDALL STREET
- **STREET 2:** HENRI A. TERMEER SQUARE
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02142
- **BUSINESS PHONE:** (617) 551-8200

**MAIL ADDRESS:**
- **STREET 1:** 675 WEST KENDALL STREET
- **STREET 2:** HENRI A. TERMEER SQUARE
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02142

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALNYLAM PHARMACEUTICALS INC
- **DATE OF NAME CHANGE:** 20020724

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**SCHEDULE 14A** 

**Proxy Statement Pursuant to Section 14(a) of the** 

**Securities Exchange Act of 1934** 

**(Amendment No.)**

Filed by the Registrant ☑

Filed by a Party other than the Registrant ☐

**Check the appropriate box:** 

☐&nbsp;&nbsp;&nbsp;&nbsp;Preliminary Proxy Statement

☐&nbsp;&nbsp;&nbsp;&nbsp;**Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☐&nbsp;&nbsp;&nbsp;&nbsp;Definitive Proxy Statement

☑&nbsp;&nbsp;&nbsp;&nbsp;Definitive Additional Materials

☐&nbsp;&nbsp;&nbsp;&nbsp;Soliciting Material Pursuant to §240.14a-12

**Alnylam Pharmaceuticals, Inc.**

![image_0a.jpg](image_0a.jpg)

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

**Payment of Filing Fee (Check all boxes that apply):** 

☑&nbsp;&nbsp;&nbsp;&nbsp;**No fee required.** 

☐&nbsp;&nbsp;&nbsp;&nbsp;**Fee paid previously with preliminary materials.**

☐&nbsp;&nbsp;&nbsp;&nbsp;**Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.** 

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