FMR LLC - 30 Sep 2025 SCHEDULE 13G/A Report for ALNYLAM PHARMACEUTICALS INC COMMON STOCK (ALNY)

Filing Manager
FMR LLC
Reporting Manager
FMR LLC
Symbol
ALNY
Shares outstanding
131,516,365 shares
Disclosed Ownership
16,834,095 shares
Ownership
13%
Form type
SCHEDULE 13G/A
Filing time
05 Nov 2025, 11:26:26 UTC
Date of event
30 Sep 2025

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Quoteable Key Fact

"FMR LLC disclosed 13% ownership in ALNYLAM PHARMACEUTICALS INC COMMON STOCK (ALNY) on 30 Sep 2025."

Quick Takeaways

  • FMR LLC filed SCHEDULE 13G/A for ALNYLAM PHARMACEUTICALS INC COMMON STOCK (ALNY).
  • Disclosed ownership: 13%.
  • Date of event: 30 Sep 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 05 Nov 2025, 11:26.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
FMR LLC 13% 16,834,095 16,297,654 0 Stephanie J. Brown Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Abigail P. Johnson 13% 16,834,095 0 0 Stephanie J. Brown Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**