Gossamer Bio

GOSS

Biotechnology · Healthcare

Price

$0.17

-0.00 (-0.23%)

Market Cap

$39.9M

Exchange

NASDAQ

Winston Score

Winston is worried

Weak fundamentals across most pillars.

Share count rising — dilution

+205.3% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 74.8M (2021) → 228.5M (2025)

Gossamer Bio, Inc., a clinical-stage biopharmaceutical company, focuses on discovering, acquiring, developing, and commercializing therapeutics in the disease areas of immunology, inflammation, and oncology in the United States. The company is developing GB002, an inhaled, small molecule, platelet-derived growth factor receptor, or PDGFR, colonystimulating factor 1 receptor, or CSF1R, and c-KIT inhibitor for the treatment of pulmonary arterial hypertension; GB004, a gut-targeted, oral small mole

Winston Score History

Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+47.1% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

-40.0% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$174M/ year

↑ Rising (+26% vs prior year)

359.2% of revenue

20.0x the sector average (18%)

Investing heavily in future products and technology

Insider Activity

24.0%ownership

↑ Rising

Insiders increasing their stake — aligned with shareholders

Cash Runway

~2 months

$38M cash & investments

Quarterly Free Cash Flow

→ Burn rate stable

Short runway — potential dilution ahead through share issuance

Revenue accelerating

Gossamer Bio grew revenue 47% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

Each metric is explained in plain language so you know exactly what you're looking at. Start your free trial now.

Quality

Gross Margin

98.4%

Premium pricing power — 98.4% gross margin

Operating Margin

-333.6%

Losing money on operations — -333.6%

ROCE

-57.4%

Weak — -57.4% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales YoY

-57.7%

Shrinking sales (-57.7% YoY)

EPS YoY

N/A

Data not available

EPS Consistency

0/8 quarters

Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion

N/A

Data not available

FCF Margin

-353.5%

Burning cash (-353.5%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

Debt / Equity

N/A

Data not available

Interest Cover

N/A

Data not available

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Valuation

P/E Ratio (TTM)

N/M

Negative earnings — P/E not meaningful

P/E vs Forward

N/A

not available

Data not available

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Dividends

Not applicable for this business.

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