Is Amgen Inc an American company?
Yes — Amgen Inc is an American company.
Amgen Inc is incorporated in Delaware, United States and headquartered in Thousand Oaks, California. Its legal-entity record reports no foreign parent — the company is independently American-owned.
The evidence
- Legal name
- AMGEN INC
- Incorporated in
- Delaware, United States
- Registered office
- WILMINGTON, the United States
- Headquarters
- Thousand Oaks, California, United States
- Ultimate owner
- None reported (independent)
- Stock listing
- NASDAQ: AMGN on NASDAQ
- LEI
- 62QBXGPJ34PQ72Z12S66
- Founded
- 1980
Source: GLEIF, the global Legal Entity Identifier registry · checked Jul 26, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
Amgen Inc: origin questions
Is Amgen Inc an American company?
Yes — Amgen Inc is an American company. Amgen Inc is incorporated in Delaware, United States and headquartered in Thousand Oaks, California. Its legal-entity record reports no foreign parent — the company is independently American-owned.
Where is Amgen Inc incorporated?
Amgen Inc is legally incorporated in Delaware, United States, according to its GLEIF legal-entity record.
Who owns Amgen Inc?
Amgen Inc reports no parent company in its legal-entity record — it is independently owned rather than a subsidiary.
Is Amgen Inc traded on a US stock exchange?
Yes — Amgen Inc trades under the ticker AMGN on the NASDAQ.
See the full Amgen Inc company profile — financials, stock data and trust credentials — or browse the directory of American companies.