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Side-by-side financial comparison of Altimmune, Inc. (ALT) and InflaRx N.V. (IFRX). Click either name above to swap in a different company.

Altimmune, Inc. is the larger business by last-quarter revenue ($26.0K vs $25.7K, roughly 1.0× InflaRx N.V.).

Altimmune, Inc. is a clinical-stage biopharmaceutical company focused on developing innovative immunotherapies, vaccines, and peptide-based therapies. Its pipeline covers infectious disease prevention, liver disease treatments, and metabolic disorder therapies, serving global biopharmaceutical and healthcare markets while advancing candidates through clinical trials.

InflaRx N.V. is a clinical-stage biopharmaceutical company specializing in the development of novel anti-inflammatory therapies targeting the complement C5a pathway. Its pipeline addresses unmet medical needs for severe inflammatory diseases including autoimmune and rare inflammatory disorders, serving global patient populations.

ALT vs IFRX — Head-to-Head

Bigger by revenue
ALT
ALT
1.0× larger
ALT
$26.0K
$25.7K
IFRX

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
ALT
ALT
IFRX
IFRX
Revenue
$26.0K
$25.7K
Net Profit
Gross Margin
98.6%
Operating Margin
Net Margin
Revenue YoY
420.0%
Net Profit YoY
-18.0%
EPS (diluted)

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
ALT
ALT
IFRX
IFRX
Q4 25
$26.0K
Q3 25
$5.0K
$25.7K
Q2 25
$5.0K
$42.6K
Q1 25
$5.0K
Q4 24
$5.0K
Q3 24
$5.0K
Q2 24
$5.0K
$6.9K
Q1 24
$5.0K
Net Profit
ALT
ALT
IFRX
IFRX
Q4 25
Q3 25
$-19.0M
Q2 25
$-22.1M
$-15.6M
Q1 25
$-19.6M
Q4 24
Q3 24
$-22.8M
Q2 24
$-24.6M
$-15.0M
Q1 24
$-24.4M
Gross Margin
ALT
ALT
IFRX
IFRX
Q4 25
Q3 25
98.6%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Operating Margin
ALT
ALT
IFRX
IFRX
Q4 25
Q3 25
-417180.0%
Q2 25
-458440.0%
Q1 25
-436300.0%
Q4 24
Q3 24
-495340.0%
Q2 24
-534900.0%
Q1 24
-535880.0%
Net Margin
ALT
ALT
IFRX
IFRX
Q4 25
Q3 25
-380280.0%
Q2 25
-442920.0%
-36559.8%
Q1 25
-391500.0%
Q4 24
Q3 24
-456900.0%
Q2 24
-492800.0%
-217803.1%
Q1 24
-487880.0%
EPS (diluted)
ALT
ALT
IFRX
IFRX
Q4 25
Q3 25
$-0.21
Q2 25
$-0.27
Q1 25
$-0.26
Q4 24
Q3 24
$-0.32
Q2 24
$-0.35
Q1 24
$-0.34

Balance Sheet & Financial Strength

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

Metric
ALT
ALT
IFRX
IFRX
Cash + ST InvestmentsLiquidity on hand
$273.5M
Total DebtLower is stronger
$34.3M
Stockholders' EquityBook value
$224.9M
Total Assets
$279.9M
Debt / EquityLower = less leverage
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ALT
ALT
IFRX
IFRX
Q4 25
$273.5M
Q3 25
$210.8M
Q2 25
$183.1M
$14.0M
Q1 25
$149.8M
Q4 24
$131.9M
Q3 24
$139.4M
Q2 24
$164.9M
$20.7M
Q1 24
$182.0M
Total Debt
ALT
ALT
IFRX
IFRX
Q4 25
$34.3M
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ALT
ALT
IFRX
IFRX
Q4 25
$224.9M
Q3 25
$185.6M
Q2 25
$161.4M
$61.6M
Q1 25
$142.2M
Q4 24
$123.5M
Q3 24
$133.4M
Q2 24
$152.5M
$88.7M
Q1 24
$172.9M
Total Assets
ALT
ALT
IFRX
IFRX
Q4 25
$279.9M
Q3 25
$218.4M
Q2 25
$190.3M
$79.3M
Q1 25
$157.3M
Q4 24
$139.3M
Q3 24
$147.9M
Q2 24
$173.3M
$100.5M
Q1 24
$188.4M
Debt / Equity
ALT
ALT
IFRX
IFRX
Q4 25
0.15×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
ALT
ALT
IFRX
IFRX
Operating Cash FlowLast quarter
$-67.5M
$-33.1M
Free Cash FlowOCF − Capex
$-67.5M
FCF MarginFCF / Revenue
-259792.3%
Capex IntensityCapex / Revenue
42.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ALT
ALT
IFRX
IFRX
Q4 25
$-67.5M
Q3 25
$-11.9M
$-33.1M
Q2 25
$-19.4M
Q1 25
$-16.8M
Q4 24
$-79.8M
Q3 24
$-27.1M
Q2 24
$-18.1M
$-29.2M
Q1 24
$-16.4M
Free Cash Flow
ALT
ALT
IFRX
IFRX
Q4 25
$-67.5M
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
FCF Margin
ALT
ALT
IFRX
IFRX
Q4 25
-259792.3%
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Capex Intensity
ALT
ALT
IFRX
IFRX
Q4 25
42.3%
Q3 25
0.0%
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

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