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Side-by-side financial comparison of Clene Inc. (CLNN) and SELLAS Life Sciences Group, Inc. (SLS). Click either name above to swap in a different company.

SELLAS Life Sciences Group, Inc. is the larger business by last-quarter revenue ($79.0K vs $77.0K, roughly 1.0× Clene Inc.). Clene Inc. runs the higher net margin — -11981.8% vs -12108.9%, a 127.0% gap on every dollar of revenue.

Clene Inc. is a clinical-stage biopharmaceutical company that develops novel neuroprotective therapeutics to treat neurodegenerative diseases including amyotrophic lateral sclerosis (ALS), multiple sclerosis, and Parkinson’s disease. It operates primarily in the U.S. market, focusing on advancing its small molecule candidate pipeline through clinical trials to address unmet medical needs.

SELLAS Life Sciences Group, Inc. is a late-stage clinical biopharmaceutical company focused on developing innovative cancer immunotherapies for patients with unmet medical needs. Its core pipeline targets both hematological malignancies and solid tumors, with lead product candidates addressing indications like acute myeloid leukemia, primarily serving markets across North America.

CLNN vs SLS — Head-to-Head

Bigger by revenue
SLS
SLS
1.0× larger
SLS
$79.0K
$77.0K
CLNN
Higher net margin
CLNN
CLNN
127.0% more per $
CLNN
-11981.8%
-12108.9%
SLS

Income Statement — Q4 FY2025 vs Q1 FY2024

Metric
CLNN
CLNN
SLS
SLS
Revenue
$77.0K
$79.0K
Net Profit
$-9.2M
$-9.6M
Gross Margin
70.1%
Operating Margin
-9733.8%
-12208.9%
Net Margin
-11981.8%
-12108.9%
Revenue YoY
-15.4%
Net Profit YoY
31.9%
13.8%
EPS (diluted)
$-0.21

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
CLNN
CLNN
SLS
SLS
Q4 25
$77.0K
Q3 25
$15.0K
Q2 25
$27.0K
Q1 25
$81.0K
Q4 24
$91.0K
Q3 24
$87.0K
Q2 24
$91.0K
Q1 24
$73.0K
$79.0K
Net Profit
CLNN
CLNN
SLS
SLS
Q4 25
$-9.2M
Q3 25
$-8.8M
Q2 25
$-7.4M
Q1 25
$-751.0K
Q4 24
$-13.5M
Q3 24
$-8.0M
Q2 24
$-6.8M
Q1 24
$-11.1M
$-9.6M
Gross Margin
CLNN
CLNN
SLS
SLS
Q4 25
70.1%
Q3 25
Q2 25
Q1 25
75.3%
Q4 24
80.2%
Q3 24
79.3%
Q2 24
80.2%
Q1 24
78.1%
Operating Margin
CLNN
CLNN
SLS
SLS
Q4 25
-9733.8%
Q3 25
-37653.3%
Q2 25
-21718.5%
Q1 25
-5032.1%
Q4 24
-9511.0%
Q3 24
-8982.8%
Q2 24
-8122.0%
Q1 24
-12646.6%
-12208.9%
Net Margin
CLNN
CLNN
SLS
SLS
Q4 25
-11981.8%
Q3 25
-58513.3%
Q2 25
-27477.8%
Q1 25
-927.2%
Q4 24
-14889.0%
Q3 24
-9179.3%
Q2 24
-7456.0%
Q1 24
-15178.1%
-12108.9%
EPS (diluted)
CLNN
CLNN
SLS
SLS
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
$-0.21

Balance Sheet & Financial Strength

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

Metric
CLNN
CLNN
SLS
SLS
Cash + ST InvestmentsLiquidity on hand
$5.2M
$18.4M
Total DebtLower is stronger
$17.8M
Stockholders' EquityBook value
$-17.6M
$9.7M
Total Assets
$18.1M
$24.4M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLNN
CLNN
SLS
SLS
Q4 25
$5.2M
Q3 25
$7.9M
Q2 25
$7.3M
Q1 25
$9.8M
Q4 24
$12.2M
Q3 24
$14.6M
Q2 24
$21.7M
Q1 24
$27.9M
$18.4M
Total Debt
CLNN
CLNN
SLS
SLS
Q4 25
$17.8M
Q3 25
$17.9M
Q2 25
$16.5M
Q1 25
$16.6M
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
CLNN
CLNN
SLS
SLS
Q4 25
$-17.6M
Q3 25
$-12.4M
Q2 25
$-8.6M
Q1 25
$-5.0M
Q4 24
$-8.9M
Q3 24
$-4.1M
Q2 24
$-504.0K
Q1 24
$4.3M
$9.7M
Total Assets
CLNN
CLNN
SLS
SLS
Q4 25
$18.1M
Q3 25
$22.3M
Q2 25
$22.1M
Q1 25
$25.3M
Q4 24
$27.3M
Q3 24
$31.6M
Q2 24
$40.3M
Q1 24
$45.1M
$24.4M

Cash Flow & Capital Efficiency

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

Metric
CLNN
CLNN
SLS
SLS
Operating Cash FlowLast quarter
$-4.8M
$-10.8M
Free Cash FlowOCF − Capex
$-4.8M
FCF MarginFCF / Revenue
-6268.8%
Capex IntensityCapex / Revenue
36.4%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLNN
CLNN
SLS
SLS
Q4 25
$-4.8M
Q3 25
$-4.0M
Q2 25
$-4.7M
Q1 25
$-5.0M
Q4 24
$-4.9M
Q3 24
$-3.0M
Q2 24
$-6.4M
Q1 24
$-7.1M
$-10.8M
Free Cash Flow
CLNN
CLNN
SLS
SLS
Q4 25
$-4.8M
Q3 25
$-4.0M
Q2 25
Q1 25
Q4 24
$-4.9M
Q3 24
$-3.0M
Q2 24
$-6.4M
Q1 24
$-7.1M
FCF Margin
CLNN
CLNN
SLS
SLS
Q4 25
-6268.8%
Q3 25
-26686.7%
Q2 25
Q1 25
Q4 24
-5347.3%
Q3 24
-3475.9%
Q2 24
-6986.8%
Q1 24
-9716.4%
Capex Intensity
CLNN
CLNN
SLS
SLS
Q4 25
36.4%
Q3 25
73.3%
Q2 25
0.0%
Q1 25
0.0%
Q4 24
1.1%
Q3 24
1.1%
Q2 24
2.2%
Q1 24
15.1%

Financial Flow Comparison

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

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