Quick Takeaways
- FMR LLC filed SCHEDULE 13G/A for AMYLYX PHARMACEUTICALS INC COMMON STOCK (AMLX).
- Disclosed ownership: 15%.
- Date of event: 31 Dec 2025.
FMR LLC - 31 Dec 2025 SCHEDULE 13G/A Report for AMYLYX PHARMACEUTICALS INC COMMON STOCK (AMLX)
- Filing Manager
- FMR LLC
- Reporting Manager
- FMR LLC
- Symbol
- AMLX
- Shares outstanding
- 109,789,460 shares
- Disclosed Ownership
- 16,468,419 shares
- Ownership
- 15%
- Form type
- SCHEDULE 13G/A
- Filing time
- 05 Feb 2026, 13:16:32 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 07 Oct 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"FMR LLC disclosed 15% ownership in AMYLYX PHARMACEUTICALS INC COMMON STOCK (AMLX) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 07 Oct 2025.
- Current filing was accepted on 05 Feb 2026, 13:16.
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.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| FMR LLC | 15% | 16,468,419 | 16,417,957 | 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 | 15% | 16,468,419 | 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** |