SEC Exhibit 21Company filing
Amgen Inc. Exhibit 21 — Subsidiaries
Amgen Inc. · Feb 13, 2026
Company-filed list of significant subsidiaries. The filing may omit subsidiaries that are not considered significant under SEC rules.
PharmaceuticalsPaper Trail research
Amgen Inc.
Amgen Inc. is an organization in the Pharmaceuticals sector. Paper Trail tracks its public-money, lobbying, campaign-finance, corporate, and People relationships where supported by public records.
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What does Amgen Inc. control?
Business segments, subsidiaries, joint ventures, and acquired companies connected to the parent organization.
Legal-subsidiary lists are drawn from reviewed SEC Exhibit 21 filings. Companies may omit subsidiaries that are not considered significant under SEC reporting rules, so these lists are not necessarily exhaustive.
Legal subsidiaries42
Amgen (Europe) GmbH
Switzerland
SEC filing source ↗Amgen Canada Inc
Canada
SEC filing source ↗Amgen Fremont Inc
Delaware
SEC filing source ↗Amgen Global Finance B.V
Netherlands
SEC filing source ↗Amgen Global Technology Unlimited Company
Ireland
SEC filing source ↗Amgen GmbH Germany
Germany
SEC filing source ↗Amgen Ilaç Ticaret Limited Şirketi
Türkiye
SEC filing source ↗Amgen International Holdings Inc
Delaware
SEC filing source ↗Amgen K-A, Inc
Delaware
SEC filing source ↗Amgen K.K
Japan
SEC filing source ↗Amgen Manufacturing Limited LLC
Puerto Rico
SEC filing source ↗Amgen Rare Disease Holdings Inc
Delaware
SEC filing source ↗Amgen Research (Munich) GmbH
Germany
SEC filing source ↗Amgen S.A.S
France
SEC filing source ↗Amgen S.p.A
Italy
SEC filing source ↗Amgen SF, LLC
Delaware
SEC filing source ↗Amgen Singapore Holding Pte. Ltd
Singapore
SEC filing source ↗Amgen Singapore Manufacturing Pte. Ltd
Singapore
SEC filing source ↗Amgen Technology (Ireland) Unlimited Company
Ireland
SEC filing source ↗Amgen Technology, Limited
Bermuda
SEC filing source ↗Amgen USA Inc
Delaware
SEC filing source ↗Amgen Worldwide Holdings B.V
Netherlands
SEC filing source ↗Amgen, S.A
Spain
SEC filing source ↗BioVex LLC
Delaware
SEC filing source ↗ChemoCentryx, Inc
Delaware
SEC filing source ↗Five Prime Therapeutics, Inc
Delaware
SEC filing source ↗Horizon Therapeutics Finance S.à.r.l
Luxembourg
SEC filing source ↗Horizon Therapeutics Holdings Limited
Ireland
SEC filing source ↗Horizon Therapeutics Ireland DAC
Ireland
SEC filing source ↗Horizon Therapeutics Limited
Ireland
SEC filing source ↗Horizon Therapeutics Services LLC
Delaware
SEC filing source ↗Horizon Therapeutics U.S. Holding LLC
Delaware
SEC filing source ↗Horizon Therapeutics USA, Inc
Delaware
SEC filing source ↗HZNP Finance Limited
Bermuda
SEC filing source ↗Immunex Corporation
Washington
SEC filing source ↗Immunex Rhode Island Corporation
Delaware
SEC filing source ↗Onyx Pharmaceuticals, Inc
Delaware
SEC filing source ↗Onyx Therapeutics, Inc
Delaware
SEC filing source ↗Pillartree Limited
Ireland
SEC filing source ↗Saga Investments Coöperatief U.A
Netherlands
SEC filing source ↗TeneoBio, Inc
Delaware
SEC filing source ↗Viela Bio, Inc
Delaware
SEC filing source ↗Acquisitions10
Celgene Corporation. OtezlaSEC filing source ↗
Celgene. OtezlaSEC filing source ↗
ChemoCentryxSEC filing source ↗
equity stake in BeiGeneSEC filing source ↗
equity stake in BeOneSEC filing source ↗
Five PrimeSEC filing source ↗
HorizonSEC filing source ↗
Horizon. For 2022SEC filing source ↗
TeneobioSEC filing source ↗
through our acquisition of Horizon for patents and know-howSEC filing source ↗
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The Paper Trail Project. “Amgen Inc..” Accessed November 7, 2026. https://www.papertrailproject.org/profiles/amgen
Record last updated 2026-09-02. Sources: Official organization website. Verify consequential claims against the linked original records.