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Side-by-side financial comparison of Emergent BioSolutions Inc. (EBS) and Rocket Lab Corp (RKLB). Click either name above to swap in a different company.

Rocket Lab Corp is the larger business by last-quarter revenue ($179.7M vs $148.7M, roughly 1.2× Emergent BioSolutions Inc.). Rocket Lab Corp runs the higher net margin — -29.5% vs -36.7%, a 7.3% gap on every dollar of revenue. On growth, Rocket Lab Corp posted the faster year-over-year revenue change (35.7% vs -23.6%). Emergent BioSolutions Inc. produced more free cash flow last quarter ($73.8M vs $-114.2M). Over the past eight quarters, Rocket Lab Corp's revenue compounded faster (39.2% CAGR vs -29.6%).

Emergent BioSolutions Inc. is an American multinational specialty biopharmaceutical company headquartered in Gaithersburg, Maryland. It develops vaccines and antibody therapeutics for infectious diseases and opioid overdoses, and it provides medical devices for biodefense purposes.

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...

EBS vs RKLB — Head-to-Head

Bigger by revenue
RKLB
RKLB
1.2× larger
RKLB
$179.7M
$148.7M
EBS
Growing faster (revenue YoY)
RKLB
RKLB
+59.3% gap
RKLB
35.7%
-23.6%
EBS
Higher net margin
RKLB
RKLB
7.3% more per $
RKLB
-29.5%
-36.7%
EBS
More free cash flow
EBS
EBS
$188.0M more FCF
EBS
$73.8M
$-114.2M
RKLB
Faster 2-yr revenue CAGR
RKLB
RKLB
Annualised
RKLB
39.2%
-29.6%
EBS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
EBS
EBS
RKLB
RKLB
Revenue
$148.7M
$179.7M
Net Profit
$-54.6M
$-52.9M
Gross Margin
42.9%
38.0%
Operating Margin
-18.8%
-28.4%
Net Margin
-36.7%
-29.5%
Revenue YoY
-23.6%
35.7%
Net Profit YoY
-74.4%
-1.1%
EPS (diluted)
$-0.95
$-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
EBS
EBS
RKLB
RKLB
Q4 25
$148.7M
$179.7M
Q3 25
$231.1M
$155.1M
Q2 25
$140.9M
$144.5M
Q1 25
$222.2M
$122.6M
Q4 24
$194.7M
$132.4M
Q3 24
$293.8M
$104.8M
Q2 24
$254.7M
$106.3M
Q1 24
$300.4M
$92.8M
Net Profit
EBS
EBS
RKLB
RKLB
Q4 25
$-54.6M
$-52.9M
Q3 25
$51.2M
$-18.3M
Q2 25
$-12.0M
$-66.4M
Q1 25
$68.0M
$-60.6M
Q4 24
$-31.3M
$-52.3M
Q3 24
$114.8M
$-51.9M
Q2 24
$-283.1M
$-41.6M
Q1 24
$9.0M
$-44.3M
Gross Margin
EBS
EBS
RKLB
RKLB
Q4 25
42.9%
38.0%
Q3 25
62.8%
37.0%
Q2 25
52.5%
32.1%
Q1 25
60.2%
28.8%
Q4 24
39.4%
27.8%
Q3 24
54.9%
26.7%
Q2 24
-18.8%
25.6%
Q1 24
49.2%
26.1%
Operating Margin
EBS
EBS
RKLB
RKLB
Q4 25
-18.8%
-28.4%
Q3 25
33.1%
-38.0%
Q2 25
1.1%
-41.3%
Q1 25
22.5%
-48.3%
Q4 24
-4.9%
-38.9%
Q3 24
22.0%
-49.5%
Q2 24
-79.9%
-40.7%
Q1 24
13.2%
-46.4%
Net Margin
EBS
EBS
RKLB
RKLB
Q4 25
-36.7%
-29.5%
Q3 25
22.2%
-11.8%
Q2 25
-8.5%
-46.0%
Q1 25
30.6%
-49.5%
Q4 24
-16.1%
-39.5%
Q3 24
39.1%
-49.6%
Q2 24
-111.2%
-39.2%
Q1 24
3.0%
-47.7%
EPS (diluted)
EBS
EBS
RKLB
RKLB
Q4 25
$-0.95
$-0.09
Q3 25
$0.91
$-0.03
Q2 25
$-0.22
$-0.13
Q1 25
$1.19
$-0.12
Q4 24
$-0.45
$-0.11
Q3 24
$2.06
$-0.10
Q2 24
$-5.38
$-0.08
Q1 24
$0.17
$-0.09

Balance Sheet & Financial Strength

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

Metric
EBS
EBS
RKLB
RKLB
Cash + ST InvestmentsLiquidity on hand
$205.4M
$1.0B
Total DebtLower is stronger
$589.7M
$152.4M
Stockholders' EquityBook value
$522.6M
$1.7B
Total Assets
$1.3B
$2.3B
Debt / EquityLower = less leverage
1.13×
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
EBS
EBS
RKLB
RKLB
Q4 25
$205.4M
$1.0B
Q3 25
$245.5M
$976.7M
Q2 25
$267.3M
$688.1M
Q1 25
$149.1M
$428.4M
Q4 24
$99.5M
$419.0M
Q3 24
$149.9M
$442.4M
Q2 24
$69.7M
$496.8M
Q1 24
$78.5M
$492.5M
Total Debt
EBS
EBS
RKLB
RKLB
Q4 25
$589.7M
$152.4M
Q3 25
$693.1M
$347.0M
Q2 25
$700.0M
$346.5M
Q1 25
$700.0M
$345.9M
Q4 24
$700.0M
$345.4M
Q3 24
$700.8M
$61.2M
Q2 24
$863.8M
$64.2M
Q1 24
$909.2M
$66.8M
Stockholders' Equity
EBS
EBS
RKLB
RKLB
Q4 25
$522.6M
$1.7B
Q3 25
$582.5M
$1.3B
Q2 25
$536.2M
$688.5M
Q1 25
$552.7M
$431.3M
Q4 24
$482.8M
$382.5M
Q3 24
$508.4M
$419.8M
Q2 24
$386.3M
$455.2M
Q1 24
$663.9M
$478.9M
Total Assets
EBS
EBS
RKLB
RKLB
Q4 25
$1.3B
$2.3B
Q3 25
$1.5B
$2.2B
Q2 25
$1.4B
$1.6B
Q1 25
$1.4B
$1.3B
Q4 24
$1.4B
$1.2B
Q3 24
$1.5B
$1.2B
Q2 24
$1.5B
$1.2B
Q1 24
$1.8B
$1.2B
Debt / Equity
EBS
EBS
RKLB
RKLB
Q4 25
1.13×
0.09×
Q3 25
1.19×
0.27×
Q2 25
1.31×
0.50×
Q1 25
1.27×
0.80×
Q4 24
1.45×
0.90×
Q3 24
1.38×
0.15×
Q2 24
2.24×
0.14×
Q1 24
1.37×
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
EBS
EBS
RKLB
RKLB
Operating Cash FlowLast quarter
$77.7M
$-64.5M
Free Cash FlowOCF − Capex
$73.8M
$-114.2M
FCF MarginFCF / Revenue
49.6%
-63.6%
Capex IntensityCapex / Revenue
2.6%
27.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$156.8M
$-321.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
EBS
EBS
RKLB
RKLB
Q4 25
$77.7M
$-64.5M
Q3 25
$-2.3M
$-23.5M
Q2 25
$106.4M
$-23.2M
Q1 25
$-11.2M
$-54.2M
Q4 24
$-79.9M
$-2.4M
Q3 24
$153.7M
$-30.9M
Q2 24
$47.5M
$-13.0M
Q1 24
$-62.6M
$-2.6M
Free Cash Flow
EBS
EBS
RKLB
RKLB
Q4 25
$73.8M
$-114.2M
Q3 25
$-5.7M
$-69.4M
Q2 25
$103.5M
$-55.3M
Q1 25
$-14.8M
$-82.9M
Q4 24
$-81.6M
$-23.9M
Q3 24
$147.9M
$-41.9M
Q2 24
$42.9M
$-28.3M
Q1 24
$-73.4M
$-21.8M
FCF Margin
EBS
EBS
RKLB
RKLB
Q4 25
49.6%
-63.6%
Q3 25
-2.5%
-44.8%
Q2 25
73.5%
-38.3%
Q1 25
-6.7%
-67.6%
Q4 24
-41.9%
-18.1%
Q3 24
50.3%
-40.0%
Q2 24
16.8%
-26.7%
Q1 24
-24.4%
-23.5%
Capex Intensity
EBS
EBS
RKLB
RKLB
Q4 25
2.6%
27.6%
Q3 25
1.5%
29.6%
Q2 25
2.1%
22.2%
Q1 25
1.6%
23.4%
Q4 24
0.9%
16.3%
Q3 24
2.0%
10.5%
Q2 24
1.8%
14.4%
Q1 24
3.6%
20.7%
Cash Conversion
EBS
EBS
RKLB
RKLB
Q4 25
Q3 25
-0.04×
Q2 25
Q1 25
-0.16×
Q4 24
Q3 24
1.34×
Q2 24
Q1 24
-6.96×

Financial Flow Comparison

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

Revenue Breakdown by Segment

EBS
EBS

Medical Countermeasures MCM Product$99.2M67%
Commercial Products Segment$38.4M26%
All Other Revenue$11.1M7%

RKLB
RKLB

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

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