Amgen
Amgen makes biologic drugs for bone disease, cancer, and inflammation worldwide.
Amgen's legacy drugs are losing ground to biosimilar copies, but newer growth drivers already make up 70% of sales and FDA approval keeps the business intact.
Amgen makes prescription medicines and biologics, including treatments for bone disease, heart disease, and cancer. It is hard to copy because the U.S. Food and Drug Administration approval process takes years, the company owns many patents, and manufacturing these complex drugs requires specialized factories and expertise that take time and money to build. Competitors like Eli Lilly and Novo Nordisk are winning in weight-loss drugs with Zepbound and Wegovy, and Amgen's obesity drug MariTide is still in testing, so success in that market could be a major change.
Outcome of MDL 3138 Amgen v. Amneal biosimilar patent litigation and Delaware verdict appeal. Indicates how much legal protection remains for Amgen's aging Prolia/XGEVA franchises.
Pace of XGEVA and Prolia revenue decline in quarterly earnings through 2026. Shows whether biosimilar erosion is accelerating faster than new drug growth can offset.
- $197B market value
- Revenue over $37B, growing 9-10% YoY
- XGEVA sales down 20% YoY from biosimilar erosion
- Biosimilar erosion of legacy franchises like Prolia and XGEVA expected to accelerate in 2026.
- IRA Medicare price negotiation on Enbrel and state price-cap litigation create pricing pressure.
- MariTide obesity candidate unapproved; Phase 3 readouts pending with uncertain FDA outcome.
- Potentially material IRS audit adjustment for tax years 2016-2018 flagged as risk factor.
- Multiple active patent infringement suits including Harbour BioMed verdict could increase liability.
| Rival | Direction | Evidence |
|---|---|---|
| Eli Lilly | losing to | Zepbound dominates obesity market; Amgen's MariTide still Phase 3, unapproved as of mid-2026 |
| Novo Nordisk | losing to | Wegovy holds first-mover advantage in obesity vs Amgen's pipeline candidate MariTide |
| Biocon Biologics | contesting | Amgen enforced 34 Prolia/XGEVA patents in litigation against Biocon, settled 2026-06-02 |
| Sandoz, Amneal, Henlius | contesting | Biosimilar makers erode Amgen legacy franchises post-patent expiry, MDL 3138 ongoing as of 2026-06-04 |
| Harbour BioMed | losing to | Delaware jury awarded Harbour BioMed $20.2 million against Amgen/Teneobio, June 2026, could triple to $60.6 million |
| Sanofi/Regeneron | contesting | Ongoing Repatha vs Praluent PCSK9-class patent battle per juve-patent chronology |
- Is Amgen profitable in 2026?
- Yes. Amgen guided FY2026 total revenue of $37.1 to $38.5 billion with non-GAAP EPS of $21.70 to $23.10 after Q1 2026 revenue hit $8.62 billion, up about 5.8% YoY, beating consensus estimates as of July 14, 2026.
- Could AI replace Amgen?
- No. AI like Amgen's AMPLIFY protein model speeds up discovery and clinical trial monitoring, but it cannot hold FDA regulatory liability, manufacture biologics at scale, or replace Amgen's patent estate and payer relationships, per Amgen's own May 2026 statements on AI-enabled clinical development.
- Is Amgen laying off workers in 2026?
- Amgen cut 22 jobs at its Horizon Therapeutics Rockville, MD site via a WARN notice effective May 8, 2026, even as total headcount grew to roughly 31,500 to 31,723 employees by December 2025, up about 11 to 12.5% YoY, per Macrotrends and Revelio Labs data.
- Who is Amgen's biggest competitor in obesity drugs?
- Eli Lilly (Zepbound) and Novo Nordisk (Wegovy) dominate the obesity market with first-mover advantage; Amgen's MariTide is a Phase 3 challenger not yet FDA-approved as of mid-2026, running nine global Phase 3 MARITIME studies.
- Who owns Amgen?
- Amgen is a publicly traded, widely held independent company with no controlling parent, trading on Nasdaq as AMGN with a market cap around $197 to $198 billion as of July 20, 2026, and is a Dow Jones Industrial Average constituent.
- How is Amgen's legacy drug business declining?
- Amgen's XGEVA sales fell 20% YoY in Q4 2025 to $447 million due to biosimilar competition, while Enbrel faces IRA Medicare price negotiation effective January 2026 and state price-cap actions, though Amgen won a preliminary injunction against Colorado's cap on July 1, 2026.
- 2026-07-01Amgen wins preliminary injunction blocking Colorado's Enbrel price cap in Amgen Inc. v. Mizner
- 2026-06-04MDL 3138, In re Amgen v. Amneal biosimilar patent case, ongoing in D.N.J.
- 2026-05-19FDA names Amgen and AstraZeneca first sponsors in real-time AI-monitored clinical trial pilot
- 2026-05-19Amgen announces CFO Peter Griffith's retirement; Thomas Dittrich to succeed him September 1, 2026
- 2026-04-22Amgen announces retirement of inaugural CTO David Reese
- 2026-03-10Amgen cuts 22 jobs at Horizon Therapeutics Rockville, MD site via WARN notice
- 2026-02-03Amgen reports FY2025 revenue of $36.8 billion, up 10% YoY
- 2026-01-06Amgen acquires Dark Blue Therapeutics for up to $840 million to bolster oncology pipeline
- 2025-12-01Amgen details AMPLIFY protein language model co-developed with Mila
- 2025-10-01Amgen launches AmgenNow, a direct-to-patient access program