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SeaStar Medical Holding Corporation

ICU
24
Biotechnology · Healthcare
Exchange
NASDAQ Capital Market
Winston Score
24
Winston is worried
Weak fundamentals across most pillars.

SeaStar Medical is a small medical device company focused on treating a dangerous condition called systemic inflammation, which happens when the body's immune system goes into overdrive and starts damaging its own organs. Its main product is the Selective Cytopheretic Device, or SCD, which filters a patient's blood to remove harmful immune cells before returning it to the body. The device is used in hospital intensive care units, targeting critically ill patients whose kidneys are failing due to this immune overreaction.

The company earns revenue by selling its SCD device and related disposable components to hospitals, primarily in the United States. SeaStar Medical is very small, with a market cap near zero and deep operating losses, meaning it spends far more than it earns right now. The company received FDA Breakthrough Device designation, which helped it gain early market access, but its biggest challenge is scaling hospital adoption and raising enough capital to survive while it builds a commercial business.

Winston Score History

Growth Profile

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

Revenue Growth

+68.9% YoY

YoY Growth Rate

Strong revenue growth

EPS Growth

+79.5% YoY

YoY Growth Rate

Strong earnings growth

Insider Activity

0.7%ownership

Relatively low insider ownership

Cash Runway

~10 months

$9M cash & investments

Short runway — potential dilution ahead through share issuance

Strong grower

SeaStar Medical Holding Corporation is growing revenue at 69% year-over-year. The Winston Score penalises unprofitable companies, but revenue at this pace tells a different story — this is a company still in "build mode."

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

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Quality

Gross Margin
90.7%
Premium pricing power — 90.7% gross margin
Operating Margin
-727.9%
Losing money on operations — -727.9%
ROCE
-47.1%
Weak — -47.1% return on capital

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

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Growth

Sales YoY
+235.5%
Fast-growing sales (235.5% 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
-954.5%
Burning cash (-954.5%)

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

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Stability

Debt / Equity
0.05
Conservative — low debt load (0.05)
Interest Cover
N/A
Data not available

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Valuation

P/E Ratio (TTM)
N/M
no trend
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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