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Side-by-side financial comparison of Septerna, Inc. (SEPN) and WESTPORT FUEL SYSTEMS INC. (WPRT). Click either name above to swap in a different company.

Septerna, Inc. is the larger business by last-quarter revenue ($24.1M vs $12.5M, roughly 1.9× WESTPORT FUEL SYSTEMS INC.). Septerna, Inc. runs the higher net margin — -44.5% vs -274.8%, a 230.3% gap on every dollar of revenue. WESTPORT FUEL SYSTEMS INC. produced more free cash flow last quarter ($-6.4M vs $-15.1M).

Septerna, Inc. is a clinical-stage biotechnology company focused on developing novel therapies targeting G protein-coupled receptors (GPCRs), a large family of cell surface proteins involved in many disease pathways. Its pipeline includes candidates for inflammatory, metabolic, and central nervous system disorders, addressing global unmet medical needs.

Westport Innovations is a company that develops alternative fuel, low-emissions technologies to allow engines to operate on clean-burning fuels such as compressed natural gas (CNG), liquefied natural gas (LNG), hydrogen and biofuels such as landfill gas. Headquartered in Vancouver, British Columbia, Canada, where the company was founded, Westport also has facilities in France, Sweden, Italy, China, Australia and the United States.

SEPN vs WPRT — Head-to-Head

Bigger by revenue
SEPN
SEPN
1.9× larger
SEPN
$24.1M
$12.5M
WPRT
Higher net margin
SEPN
SEPN
230.3% more per $
SEPN
-44.5%
-274.8%
WPRT
More free cash flow
WPRT
WPRT
$8.6M more FCF
WPRT
$-6.4M
$-15.1M
SEPN

Income Statement — Q4 FY2025 vs Q2 FY2025

Metric
SEPN
SEPN
WPRT
WPRT
Revenue
$24.1M
$12.5M
Net Profit
$-10.7M
$-34.3M
Gross Margin
6.7%
Operating Margin
-66.4%
-8.1%
Net Margin
-44.5%
-274.8%
Revenue YoY
-11.4%
Net Profit YoY
-690.4%
EPS (diluted)
$-0.23
$-1.98

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
SEPN
SEPN
WPRT
WPRT
Q4 25
$24.1M
Q3 25
$21.5M
Q2 25
$12.5M
Q3 24
$4.9M
Q2 24
$14.1M
Net Profit
SEPN
SEPN
WPRT
WPRT
Q4 25
$-10.7M
Q3 25
$8.2M
Q2 25
$-34.3M
Q3 24
$-3.9M
Q2 24
$5.8M
Gross Margin
SEPN
SEPN
WPRT
WPRT
Q4 25
Q3 25
Q2 25
6.7%
Q3 24
13.6%
Q2 24
16.7%
Operating Margin
SEPN
SEPN
WPRT
WPRT
Q4 25
-66.4%
Q3 25
12.2%
Q2 25
-8.1%
Q3 24
-43.9%
Q2 24
-54.9%
Net Margin
SEPN
SEPN
WPRT
WPRT
Q4 25
-44.5%
Q3 25
38.0%
Q2 25
-274.8%
Q3 24
-79.3%
Q2 24
41.2%
EPS (diluted)
SEPN
SEPN
WPRT
WPRT
Q4 25
$-0.23
Q3 25
$0.18
Q2 25
$-1.98
Q3 24
$-0.22
Q2 24
$0.34

Balance Sheet & Financial Strength

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

Metric
SEPN
SEPN
WPRT
WPRT
Cash + ST InvestmentsLiquidity on hand
$391.1M
$6.1M
Total DebtLower is stronger
$977.0K
Stockholders' EquityBook value
$381.9M
$108.9M
Total Assets
$596.2M
$272.1M
Debt / EquityLower = less leverage
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SEPN
SEPN
WPRT
WPRT
Q4 25
$391.1M
Q3 25
$474.3M
Q2 25
$6.1M
Q3 24
Q2 24
Total Debt
SEPN
SEPN
WPRT
WPRT
Q4 25
Q3 25
Q2 25
$977.0K
Q3 24
Q2 24
Stockholders' Equity
SEPN
SEPN
WPRT
WPRT
Q4 25
$381.9M
Q3 25
$388.7M
Q2 25
$108.9M
Q3 24
$149.3M
Q2 24
$151.5M
Total Assets
SEPN
SEPN
WPRT
WPRT
Q4 25
$596.2M
Q3 25
$606.7M
Q2 25
$272.1M
Q3 24
Q2 24
Debt / Equity
SEPN
SEPN
WPRT
WPRT
Q4 25
Q3 25
Q2 25
0.01×
Q3 24
Q2 24

Cash Flow & Capital Efficiency

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

Metric
SEPN
SEPN
WPRT
WPRT
Operating Cash FlowLast quarter
$-15.0M
$-5.6M
Free Cash FlowOCF − Capex
$-15.1M
$-6.4M
FCF MarginFCF / Revenue
-62.4%
-51.6%
Capex IntensityCapex / Revenue
0.3%
6.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SEPN
SEPN
WPRT
WPRT
Q4 25
$-15.0M
Q3 25
$168.8M
Q2 25
$-5.6M
Q3 24
$-11.7M
Q2 24
$1.5M
Free Cash Flow
SEPN
SEPN
WPRT
WPRT
Q4 25
$-15.1M
Q3 25
$168.8M
Q2 25
$-6.4M
Q3 24
$-11.9M
Q2 24
$262.0K
FCF Margin
SEPN
SEPN
WPRT
WPRT
Q4 25
-62.4%
Q3 25
785.3%
Q2 25
-51.6%
Q3 24
-243.4%
Q2 24
1.9%
Capex Intensity
SEPN
SEPN
WPRT
WPRT
Q4 25
0.3%
Q3 25
0.1%
Q2 25
6.6%
Q3 24
3.8%
Q2 24
8.9%
Cash Conversion
SEPN
SEPN
WPRT
WPRT
Q4 25
Q3 25
20.65×
Q2 25
Q3 24
Q2 24
0.26×

Financial Flow Comparison

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

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