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Side-by-side financial comparison of Amgen (AMGN) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

Amgen is the larger business by last-quarter revenue ($9.9B vs $197.9M, roughly 49.9× REPLIGEN CORP). Amgen runs the higher net margin — 13.5% vs 6.7%, a 6.8% gap on every dollar of revenue. On growth, REPLIGEN CORP posted the faster year-over-year revenue change (13.6% vs 8.6%). Amgen produced more free cash flow last quarter ($961.0M vs $17.6M). Over the past eight quarters, Amgen's revenue compounded faster (15.1% CAGR vs 14.4%).

Amgen Inc. is an American multinational biopharmaceutical company headquartered in Thousand Oaks, California. The company is ranked 18th on the list of largest biomedical companies by revenue. The name "AMGen" is a portmanteau of the company's original name, Applied Molecular Genetics.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

AMGN vs RGEN — Head-to-Head

Bigger by revenue
AMGN
AMGN
49.9× larger
AMGN
$9.9B
$197.9M
RGEN
Growing faster (revenue YoY)
RGEN
RGEN
+5.1% gap
RGEN
13.6%
8.6%
AMGN
Higher net margin
AMGN
AMGN
6.8% more per $
AMGN
13.5%
6.7%
RGEN
More free cash flow
AMGN
AMGN
$943.4M more FCF
AMGN
$961.0M
$17.6M
RGEN
Faster 2-yr revenue CAGR
AMGN
AMGN
Annualised
AMGN
15.1%
14.4%
RGEN

Income Statement — Q4 2025 vs Q4 2025

Metric
AMGN
AMGN
RGEN
RGEN
Revenue
$9.9B
$197.9M
Net Profit
$1.3B
$13.3M
Gross Margin
69.8%
52.5%
Operating Margin
27.6%
9.0%
Net Margin
13.5%
6.7%
Revenue YoY
8.6%
13.6%
Net Profit YoY
112.6%
143.9%
EPS (diluted)
$2.45
$0.24

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMGN
AMGN
RGEN
RGEN
Q4 25
$9.9B
$197.9M
Q3 25
$9.6B
$188.8M
Q2 25
$9.2B
$182.4M
Q1 25
$8.1B
$169.2M
Q4 24
$9.1B
$174.1M
Q3 24
$8.5B
$154.9M
Q2 24
$8.4B
$154.1M
Q1 24
$7.4B
$151.3M
Net Profit
AMGN
AMGN
RGEN
RGEN
Q4 25
$1.3B
$13.3M
Q3 25
$3.2B
$14.9M
Q2 25
$1.4B
$14.9M
Q1 25
$1.7B
$5.8M
Q4 24
$627.0M
$-30.3M
Q3 24
$2.8B
$-654.0K
Q2 24
$746.0M
$3.3M
Q1 24
$-113.0M
$2.1M
Gross Margin
AMGN
AMGN
RGEN
RGEN
Q4 25
69.8%
52.5%
Q3 25
67.8%
53.2%
Q2 25
67.2%
50.0%
Q1 25
63.6%
53.6%
Q4 24
65.7%
26.1%
Q3 24
61.1%
50.0%
Q2 24
61.4%
49.8%
Q1 24
57.0%
49.5%
Operating Margin
AMGN
AMGN
RGEN
RGEN
Q4 25
27.6%
9.0%
Q3 25
26.4%
8.9%
Q2 25
28.9%
7.6%
Q1 25
14.5%
3.9%
Q4 24
25.4%
-17.7%
Q3 24
24.1%
-5.1%
Q2 24
22.8%
1.0%
Q1 24
13.3%
1.3%
Net Margin
AMGN
AMGN
RGEN
RGEN
Q4 25
13.5%
6.7%
Q3 25
33.7%
7.9%
Q2 25
15.6%
8.2%
Q1 25
21.2%
3.4%
Q4 24
6.9%
-17.4%
Q3 24
33.3%
-0.4%
Q2 24
8.9%
2.2%
Q1 24
-1.5%
1.4%
EPS (diluted)
AMGN
AMGN
RGEN
RGEN
Q4 25
$2.45
$0.24
Q3 25
$5.93
$0.26
Q2 25
$2.65
$0.26
Q1 25
$3.20
$0.10
Q4 24
$1.17
$-0.55
Q3 24
$5.22
$-0.01
Q2 24
$1.38
$0.06
Q1 24
$-0.21
$0.04

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMGN
AMGN
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$9.1B
$767.6M
Total DebtLower is stronger
$54.6B
$542.2M
Stockholders' EquityBook value
$8.7B
$2.1B
Total Assets
$90.6B
$2.9B
Debt / EquityLower = less leverage
6.31×
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMGN
AMGN
RGEN
RGEN
Q4 25
$9.1B
$767.6M
Q3 25
$9.4B
$748.7M
Q2 25
$8.0B
$708.9M
Q1 25
$8.8B
$697.2M
Q4 24
$12.0B
$757.4M
Q3 24
$9.0B
$784.0M
Q2 24
$9.3B
$809.1M
Q1 24
$9.7B
$780.6M
Total Debt
AMGN
AMGN
RGEN
RGEN
Q4 25
$54.6B
$542.2M
Q3 25
$54.6B
$537.9M
Q2 25
$56.2B
Q1 25
$57.4B
Q4 24
$60.1B
$525.6M
Q3 24
$60.4B
Q2 24
$62.6B
Q1 24
$64.0B
Stockholders' Equity
AMGN
AMGN
RGEN
RGEN
Q4 25
$8.7B
$2.1B
Q3 25
$9.6B
$2.1B
Q2 25
$7.4B
$2.1B
Q1 25
$6.2B
$2.0B
Q4 24
$5.9B
$2.0B
Q3 24
$7.5B
$2.0B
Q2 24
$5.9B
$2.0B
Q1 24
$5.0B
$2.0B
Total Assets
AMGN
AMGN
RGEN
RGEN
Q4 25
$90.6B
$2.9B
Q3 25
$90.1B
$2.9B
Q2 25
$87.9B
$2.9B
Q1 25
$89.4B
$2.9B
Q4 24
$91.8B
$2.8B
Q3 24
$90.9B
$2.8B
Q2 24
$90.9B
$2.9B
Q1 24
$93.0B
$2.8B
Debt / Equity
AMGN
AMGN
RGEN
RGEN
Q4 25
6.31×
0.26×
Q3 25
5.67×
0.26×
Q2 25
7.57×
Q1 25
9.24×
Q4 24
10.23×
0.27×
Q3 24
8.02×
Q2 24
10.57×
Q1 24
12.75×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMGN
AMGN
RGEN
RGEN
Operating Cash FlowLast quarter
$1.6B
$25.7M
Free Cash FlowOCF − Capex
$961.0M
$17.6M
FCF MarginFCF / Revenue
9.7%
8.9%
Capex IntensityCapex / Revenue
6.5%
4.1%
Cash ConversionOCF / Net Profit
1.20×
1.93×
TTM Free Cash FlowTrailing 4 quarters
$8.1B
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMGN
AMGN
RGEN
RGEN
Q4 25
$1.6B
$25.7M
Q3 25
$4.7B
$48.1M
Q2 25
$2.3B
$28.6M
Q1 25
$1.4B
$15.0M
Q4 24
$4.8B
$39.2M
Q3 24
$3.6B
$49.3M
Q2 24
$2.5B
$42.2M
Q1 24
$689.0M
$44.7M
Free Cash Flow
AMGN
AMGN
RGEN
RGEN
Q4 25
$961.0M
$17.6M
Q3 25
$4.2B
$43.4M
Q2 25
$1.9B
$21.5M
Q1 25
$980.0M
$11.4M
Q4 24
$4.4B
$33.6M
Q3 24
$3.3B
$42.3M
Q2 24
$2.2B
$37.4M
Q1 24
$459.0M
$36.4M
FCF Margin
AMGN
AMGN
RGEN
RGEN
Q4 25
9.7%
8.9%
Q3 25
44.4%
23.0%
Q2 25
20.8%
11.8%
Q1 25
12.0%
6.8%
Q4 24
48.4%
19.3%
Q3 24
39.0%
27.3%
Q2 24
26.5%
24.3%
Q1 24
6.2%
24.0%
Capex Intensity
AMGN
AMGN
RGEN
RGEN
Q4 25
6.5%
4.1%
Q3 25
4.6%
2.5%
Q2 25
4.0%
3.9%
Q1 25
5.0%
2.1%
Q4 24
4.1%
3.2%
Q3 24
3.0%
4.5%
Q2 24
2.8%
3.1%
Q1 24
3.1%
5.5%
Cash Conversion
AMGN
AMGN
RGEN
RGEN
Q4 25
1.20×
1.93×
Q3 25
1.46×
3.23×
Q2 25
1.59×
1.92×
Q1 25
0.80×
2.57×
Q4 24
7.61×
Q3 24
1.26×
Q2 24
3.30×
12.70×
Q1 24
21.35×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMGN
AMGN

Products$9.4B95%
Xgeva$291.0M3%
Vectibix$163.0M2%
Aranesp$115.0M1%

RGEN
RGEN

Segment breakdown not available.

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