The Filing Desk

Amgen vs Gilead Sciences

Amgen AMGN · Gilead Sciences GILD · Biotechnology

Amgen reported revenue of $36.8 billion in fiscal 2025, 1.2 times Gilead Sciences' $29.4 billion in fiscal 2025. Amgen's revenue grew 9.9% in its latest year, and Gilead Sciences' grew 2.4%. Amgen had an operating margin of 24.7%, against 34.0% at Gilead Sciences. Free cash flow was $8.1 billion at Amgen and $9.5 billion at Gilead Sciences.

Side by side

AmgenGilead Sciences
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$36.8B$29.4B
Revenue growth9.9%2.4%
Revenue growth a year, last 5 years7.6%3.6%
Gross margin67.2%78.8%
Operating margin24.7%34.0%
Net margin21.0%28.9%
Free cash flow$8.1B$9.5B
Free cash flow margin22.0%32.1%
Return on capital14.4%22.9%
Net debt to EBITDA3.2x1.4x
Dividends and buybacks$5.1B$5.9B
Change in diluted share count0.2%0.0%
Last close$444.63$158.69
P/E at the last close27.6×—
Insider trades, last 12 monthssold $29.3 millionsold $85.8 million
Piotroski F-score7 of 98 of 9
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
AmgenGilead Sciences
Operating margin
Percent of revenue
AmgenGilead Sciences
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
AmgenGilead Sciences

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Amgen and Gilead Sciences pages.