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Side-by-side financial comparison of Certara, Inc. (CERT) and Protagonist Therapeutics, Inc (PTGX). Click either name above to swap in a different company.

Protagonist Therapeutics, Inc is the larger business by last-quarter revenue ($170.6M vs $103.6M, roughly 1.6× Certara, Inc.). Protagonist Therapeutics, Inc runs the higher net margin — 77.2% vs -5.7%, a 82.9% gap on every dollar of revenue. On growth, Protagonist Therapeutics, Inc posted the faster year-over-year revenue change (184.4% vs 3.3%). Protagonist Therapeutics, Inc produced more free cash flow last quarter ($182.8M vs $27.8M).

Certara is a global leader in biopharmaceutical software and consulting services, specializing in modeling, simulation, and regulatory science solutions. It serves pharmaceutical companies, biotech firms and healthcare stakeholders across all drug development stages, helping accelerate new therapy launches, lower R&D risks and cut overall development costs.

Protagonist Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on discovering and developing novel peptide-based targeted therapies for unmet medical needs, primarily covering gastrointestinal disorders, inflammatory diseases and rare disease indications. Its lead product candidates target inflammatory bowel disease and other chronic immune-related conditions, with operations spanning global R&D and partnership collaborations.

CERT vs PTGX — Head-to-Head

Bigger by revenue
PTGX
PTGX
1.6× larger
PTGX
$170.6M
$103.6M
CERT
Growing faster (revenue YoY)
PTGX
PTGX
+181.1% gap
PTGX
184.4%
3.3%
CERT
Higher net margin
PTGX
PTGX
82.9% more per $
PTGX
77.2%
-5.7%
CERT
More free cash flow
PTGX
PTGX
$155.0M more FCF
PTGX
$182.8M
$27.8M
CERT

Income Statement — Q4 FY2025 vs Q4 FY2024

Metric
CERT
CERT
PTGX
PTGX
Revenue
$103.6M
$170.6M
Net Profit
$-5.9M
$131.7M
Gross Margin
Operating Margin
0.8%
74.3%
Net Margin
-5.7%
77.2%
Revenue YoY
3.3%
184.4%
Net Profit YoY
-189.6%
381.7%
EPS (diluted)
$-0.04
$2.01

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
CERT
CERT
PTGX
PTGX
Q4 25
$103.6M
Q3 25
$104.6M
Q2 25
$104.6M
Q1 25
$106.0M
Q4 24
$100.4M
$170.6M
Q3 24
$94.8M
Q2 24
$93.3M
Q1 24
$96.7M
$255.0M
Net Profit
CERT
CERT
PTGX
PTGX
Q4 25
$-5.9M
Q3 25
$1.5M
Q2 25
$-2.0M
Q1 25
$4.7M
Q4 24
$6.6M
$131.7M
Q3 24
$-1.4M
Q2 24
$-12.6M
Q1 24
$-4.7M
$207.3M
Operating Margin
CERT
CERT
PTGX
PTGX
Q4 25
0.8%
Q3 25
2.9%
Q2 25
9.1%
Q1 25
7.2%
Q4 24
6.0%
74.3%
Q3 24
2.7%
Q2 24
-9.7%
Q1 24
-1.3%
80.9%
Net Margin
CERT
CERT
PTGX
PTGX
Q4 25
-5.7%
Q3 25
1.5%
Q2 25
-1.9%
Q1 25
4.5%
Q4 24
6.6%
77.2%
Q3 24
-1.4%
Q2 24
-13.5%
Q1 24
-4.8%
81.3%
EPS (diluted)
CERT
CERT
PTGX
PTGX
Q4 25
$-0.04
Q3 25
$0.01
Q2 25
$-0.01
Q1 25
$0.03
Q4 24
$0.04
$2.01
Q3 24
$-0.01
Q2 24
$-0.08
Q1 24
$-0.03
$3.26

Balance Sheet & Financial Strength

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

Metric
CERT
CERT
PTGX
PTGX
Cash + ST InvestmentsLiquidity on hand
$189.4M
$418.9M
Total DebtLower is stronger
$293.1M
Stockholders' EquityBook value
$1.1B
$675.3M
Total Assets
$1.6B
$744.7M
Debt / EquityLower = less leverage
0.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CERT
CERT
PTGX
PTGX
Q4 25
$189.4M
Q3 25
$172.7M
Q2 25
$162.3M
Q1 25
$179.1M
Q4 24
$179.2M
$418.9M
Q3 24
$233.0M
Q2 24
$224.6M
Q1 24
$224.8M
$322.6M
Total Debt
CERT
CERT
PTGX
PTGX
Q4 25
$293.1M
Q3 25
$293.5M
Q2 25
$294.2M
Q1 25
$294.8M
Q4 24
$295.4M
Q3 24
$296.1M
Q2 24
$296.7M
Q1 24
$290.8M
Stockholders' Equity
CERT
CERT
PTGX
PTGX
Q4 25
$1.1B
Q3 25
$1.1B
Q2 25
$1.1B
Q1 25
$1.1B
Q4 24
$1.1B
$675.3M
Q3 24
$1.1B
Q2 24
$1.0B
Q1 24
$1.1B
$560.4M
Total Assets
CERT
CERT
PTGX
PTGX
Q4 25
$1.6B
Q3 25
$1.5B
Q2 25
$1.5B
Q1 25
$1.6B
Q4 24
$1.6B
$744.7M
Q3 24
$1.5B
Q2 24
$1.5B
Q1 24
$1.5B
$629.3M
Debt / Equity
CERT
CERT
PTGX
PTGX
Q4 25
0.28×
Q3 25
0.28×
Q2 25
0.27×
Q1 25
0.27×
Q4 24
0.28×
Q3 24
0.28×
Q2 24
0.28×
Q1 24
0.28×

Cash Flow & Capital Efficiency

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

Metric
CERT
CERT
PTGX
PTGX
Operating Cash FlowLast quarter
$28.8M
$184.2M
Free Cash FlowOCF − Capex
$27.8M
$182.8M
FCF MarginFCF / Revenue
26.8%
107.1%
Capex IntensityCapex / Revenue
1.0%
0.8%
Cash ConversionOCF / Net Profit
1.40×
TTM Free Cash FlowTrailing 4 quarters
$94.4M
$101.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CERT
CERT
PTGX
PTGX
Q4 25
$28.8M
Q3 25
$32.3M
Q2 25
$17.8M
Q1 25
$17.4M
Q4 24
$49.4M
$184.2M
Q3 24
$17.0M
Q2 24
$9.8M
Q1 24
$4.3M
$-27.4M
Free Cash Flow
CERT
CERT
PTGX
PTGX
Q4 25
$27.8M
Q3 25
$32.1M
Q2 25
$17.8M
Q1 25
$16.8M
Q4 24
$49.0M
$182.8M
Q3 24
$16.8M
Q2 24
$9.4M
Q1 24
$3.7M
$-27.7M
FCF Margin
CERT
CERT
PTGX
PTGX
Q4 25
26.8%
Q3 25
30.7%
Q2 25
17.0%
Q1 25
15.8%
Q4 24
48.8%
107.1%
Q3 24
17.7%
Q2 24
10.1%
Q1 24
3.8%
-10.9%
Capex Intensity
CERT
CERT
PTGX
PTGX
Q4 25
1.0%
Q3 25
0.2%
Q2 25
0.1%
Q1 25
0.6%
Q4 24
0.4%
0.8%
Q3 24
0.2%
Q2 24
0.5%
Q1 24
0.6%
0.1%
Cash Conversion
CERT
CERT
PTGX
PTGX
Q4 25
Q3 25
21.19×
Q2 25
Q1 25
3.66×
Q4 24
7.51×
1.40×
Q3 24
Q2 24
Q1 24
-0.13×

Financial Flow Comparison

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

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