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

REPLIGEN CORP is the larger business by last-quarter revenue ($197.9M vs $179.7M, roughly 1.1× Rocket Lab Corp). REPLIGEN CORP runs the higher net margin — 6.7% vs -29.5%, a 36.2% gap on every dollar of revenue. On growth, Rocket Lab Corp posted the faster year-over-year revenue change (35.7% vs 13.6%). REPLIGEN CORP produced more free cash flow last quarter ($17.6M vs $-114.2M). Over the past eight quarters, Rocket Lab Corp's revenue compounded faster (39.2% CAGR vs 14.4%).

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...

Rocket Lab Corporation is a publicly traded aerospace manufacturer and launch service provider. Its Electron orbital rocket launches small satellites and has successfully completed over 75 missions as of January 2026, making it the most prolific small-lift launch vehicle in operation globally. A suborbital variant of Electron, called HASTE, was developed as a testbed to advance hypersonic technology development, while the next-generation reusable Neutron medium-lift launch vehicle is in devel...

RGEN vs RKLB — Head-to-Head

Bigger by revenue
RGEN
RGEN
1.1× larger
RGEN
$197.9M
$179.7M
RKLB
Growing faster (revenue YoY)
RKLB
RKLB
+22.1% gap
RKLB
35.7%
13.6%
RGEN
Higher net margin
RGEN
RGEN
36.2% more per $
RGEN
6.7%
-29.5%
RKLB
More free cash flow
RGEN
RGEN
$131.7M more FCF
RGEN
$17.6M
$-114.2M
RKLB
Faster 2-yr revenue CAGR
RKLB
RKLB
Annualised
RKLB
39.2%
14.4%
RGEN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
RGEN
RGEN
RKLB
RKLB
Revenue
$197.9M
$179.7M
Net Profit
$13.3M
$-52.9M
Gross Margin
52.5%
38.0%
Operating Margin
9.0%
-28.4%
Net Margin
6.7%
-29.5%
Revenue YoY
13.6%
35.7%
Net Profit YoY
143.9%
-1.1%
EPS (diluted)
$0.24
$-0.09

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
RGEN
RGEN
RKLB
RKLB
Q4 25
$197.9M
$179.7M
Q3 25
$188.8M
$155.1M
Q2 25
$182.4M
$144.5M
Q1 25
$169.2M
$122.6M
Q4 24
$174.1M
$132.4M
Q3 24
$154.9M
$104.8M
Q2 24
$154.1M
$106.3M
Q1 24
$151.3M
$92.8M
Net Profit
RGEN
RGEN
RKLB
RKLB
Q4 25
$13.3M
$-52.9M
Q3 25
$14.9M
$-18.3M
Q2 25
$14.9M
$-66.4M
Q1 25
$5.8M
$-60.6M
Q4 24
$-30.3M
$-52.3M
Q3 24
$-654.0K
$-51.9M
Q2 24
$3.3M
$-41.6M
Q1 24
$2.1M
$-44.3M
Gross Margin
RGEN
RGEN
RKLB
RKLB
Q4 25
52.5%
38.0%
Q3 25
53.2%
37.0%
Q2 25
50.0%
32.1%
Q1 25
53.6%
28.8%
Q4 24
26.1%
27.8%
Q3 24
50.0%
26.7%
Q2 24
49.8%
25.6%
Q1 24
49.5%
26.1%
Operating Margin
RGEN
RGEN
RKLB
RKLB
Q4 25
9.0%
-28.4%
Q3 25
8.9%
-38.0%
Q2 25
7.6%
-41.3%
Q1 25
3.9%
-48.3%
Q4 24
-17.7%
-38.9%
Q3 24
-5.1%
-49.5%
Q2 24
1.0%
-40.7%
Q1 24
1.3%
-46.4%
Net Margin
RGEN
RGEN
RKLB
RKLB
Q4 25
6.7%
-29.5%
Q3 25
7.9%
-11.8%
Q2 25
8.2%
-46.0%
Q1 25
3.4%
-49.5%
Q4 24
-17.4%
-39.5%
Q3 24
-0.4%
-49.6%
Q2 24
2.2%
-39.2%
Q1 24
1.4%
-47.7%
EPS (diluted)
RGEN
RGEN
RKLB
RKLB
Q4 25
$0.24
$-0.09
Q3 25
$0.26
$-0.03
Q2 25
$0.26
$-0.13
Q1 25
$0.10
$-0.12
Q4 24
$-0.55
$-0.11
Q3 24
$-0.01
$-0.10
Q2 24
$0.06
$-0.08
Q1 24
$0.04
$-0.09

Balance Sheet & Financial Strength

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

Metric
RGEN
RGEN
RKLB
RKLB
Cash + ST InvestmentsLiquidity on hand
$767.6M
$1.0B
Total DebtLower is stronger
$542.2M
$152.4M
Stockholders' EquityBook value
$2.1B
$1.7B
Total Assets
$2.9B
$2.3B
Debt / EquityLower = less leverage
0.26×
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
RGEN
RGEN
RKLB
RKLB
Q4 25
$767.6M
$1.0B
Q3 25
$748.7M
$976.7M
Q2 25
$708.9M
$688.1M
Q1 25
$697.2M
$428.4M
Q4 24
$757.4M
$419.0M
Q3 24
$784.0M
$442.4M
Q2 24
$809.1M
$496.8M
Q1 24
$780.6M
$492.5M
Total Debt
RGEN
RGEN
RKLB
RKLB
Q4 25
$542.2M
$152.4M
Q3 25
$537.9M
$347.0M
Q2 25
$346.5M
Q1 25
$345.9M
Q4 24
$525.6M
$345.4M
Q3 24
$61.2M
Q2 24
$64.2M
Q1 24
$66.8M
Stockholders' Equity
RGEN
RGEN
RKLB
RKLB
Q4 25
$2.1B
$1.7B
Q3 25
$2.1B
$1.3B
Q2 25
$2.1B
$688.5M
Q1 25
$2.0B
$431.3M
Q4 24
$2.0B
$382.5M
Q3 24
$2.0B
$419.8M
Q2 24
$2.0B
$455.2M
Q1 24
$2.0B
$478.9M
Total Assets
RGEN
RGEN
RKLB
RKLB
Q4 25
$2.9B
$2.3B
Q3 25
$2.9B
$2.2B
Q2 25
$2.9B
$1.6B
Q1 25
$2.9B
$1.3B
Q4 24
$2.8B
$1.2B
Q3 24
$2.8B
$1.2B
Q2 24
$2.9B
$1.2B
Q1 24
$2.8B
$1.2B
Debt / Equity
RGEN
RGEN
RKLB
RKLB
Q4 25
0.26×
0.09×
Q3 25
0.26×
0.27×
Q2 25
0.50×
Q1 25
0.80×
Q4 24
0.27×
0.90×
Q3 24
0.15×
Q2 24
0.14×
Q1 24
0.14×

Cash Flow & Capital Efficiency

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

Metric
RGEN
RGEN
RKLB
RKLB
Operating Cash FlowLast quarter
$25.7M
$-64.5M
Free Cash FlowOCF − Capex
$17.6M
$-114.2M
FCF MarginFCF / Revenue
8.9%
-63.6%
Capex IntensityCapex / Revenue
4.1%
27.6%
Cash ConversionOCF / Net Profit
1.93×
TTM Free Cash FlowTrailing 4 quarters
$93.9M
$-321.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
RGEN
RGEN
RKLB
RKLB
Q4 25
$25.7M
$-64.5M
Q3 25
$48.1M
$-23.5M
Q2 25
$28.6M
$-23.2M
Q1 25
$15.0M
$-54.2M
Q4 24
$39.2M
$-2.4M
Q3 24
$49.3M
$-30.9M
Q2 24
$42.2M
$-13.0M
Q1 24
$44.7M
$-2.6M
Free Cash Flow
RGEN
RGEN
RKLB
RKLB
Q4 25
$17.6M
$-114.2M
Q3 25
$43.4M
$-69.4M
Q2 25
$21.5M
$-55.3M
Q1 25
$11.4M
$-82.9M
Q4 24
$33.6M
$-23.9M
Q3 24
$42.3M
$-41.9M
Q2 24
$37.4M
$-28.3M
Q1 24
$36.4M
$-21.8M
FCF Margin
RGEN
RGEN
RKLB
RKLB
Q4 25
8.9%
-63.6%
Q3 25
23.0%
-44.8%
Q2 25
11.8%
-38.3%
Q1 25
6.8%
-67.6%
Q4 24
19.3%
-18.1%
Q3 24
27.3%
-40.0%
Q2 24
24.3%
-26.7%
Q1 24
24.0%
-23.5%
Capex Intensity
RGEN
RGEN
RKLB
RKLB
Q4 25
4.1%
27.6%
Q3 25
2.5%
29.6%
Q2 25
3.9%
22.2%
Q1 25
2.1%
23.4%
Q4 24
3.2%
16.3%
Q3 24
4.5%
10.5%
Q2 24
3.1%
14.4%
Q1 24
5.5%
20.7%
Cash Conversion
RGEN
RGEN
RKLB
RKLB
Q4 25
1.93×
Q3 25
3.23×
Q2 25
1.92×
Q1 25
2.57×
Q4 24
Q3 24
Q2 24
12.70×
Q1 24
21.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

RGEN
RGEN

Segment breakdown not available.

RKLB
RKLB

Products$94.0M52%
Transferred Over Time$87.3M49%

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