EntityWire/Massachusetts business entity search →/AMYLYX PHARMACEUTICALS, INC.
Employer with a benefit plan
AMYLYX PHARMACEUTICALS, INC.
The Employer Identification Number (EIN) for AMYLYX PHARMACEUTICALS, INC. is 46-4600503.
At a glance
- EIN
- 46-4600503 · 464600503
- Legal name
- AMYLYX PHARMACEUTICALS, INC.
- Address on file
- 121 FIRST STREET, CAMBRIDGE, MA 02141
- Records show
- SEC filer; employer with a benefit plan; state registration
- Latest record
- 2026-09-02
State registration
Florida Division of Corporations (Sunbiz) bulk data · records as of 2026-07-10
- Florida registration
- Active · Foreign profit corporation
- Source: Florida registry · as of 2026-07-10
- Florida document number
- F22000002566
- Source: Florida registry · as of 2026-07-10
- Registered in Florida
- 2022-04-25
- Source: Florida registry · as of 2026-07-10
- Registered agent
- CORPORATION SERVICE COMPANY
- Source: Florida registry · as of 2026-07-10
SEC records
SEC EDGAR company filings · records as of 2026-09-02
- SEC CIK
- 0001658551
- Source: SEC · as of 2026-09-02
- Industry (SIC)
- Pharmaceutical Preparations (2834)
- Source: SEC · as of 2026-09-02
- State of incorporation
- DE
- Source: SEC · as of 2026-09-02
- Ticker
- AMLX
- Source: SEC · as of 2026-09-02
- Latest SEC filing
- 4 2026-09-02
- Source: SEC · as of 2026-09-02
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2025-10-11
- Benefit plan 1, 2024 filing
- AMYLYX PHARMACEUTICALS RETIREMENT PLAN
- Source: DOL 5500 · as of 2025-10-11
- Participants (start of year)
- 352
- Source: DOL 5500 · as of 2025-10-11
- Plan features
- Profit-sharing; ERISA 404(c) plan; Participant-directed; 401(k) feature; 401(m) matching; Pension plan with defined contribution
- Source: DOL 5500 · as of 2025-10-11
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2025-10-11
- Business code (NAICS)
- 325410
- Source: DOL 5500 · as of 2025-10-11
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2), DOL Form 5500-SF filings (EFAST2), Florida Division of Corporations (Sunbiz) bulk data and SEC EDGAR company filings), shown as filed. Nothing is scraped from the IRS, and a public-record match is not IRS TIN validation.
What it is not
Registry status, formation date, and registered agent come from the Secretary of the Commonwealth, Corporations Division; see the Massachusetts business entity search.
If something is wrong
A name, address, or classification here is what the source published. To correct the source, file with it; to have this page removed, see corrections and removal.
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