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Cytosorbents Corporation

CTSO
26
Medical - Devices · Healthcare
Price
$0.37
+0.01 (+2.78%)
pre-market:$0.38+2.00%
Market Cap
$23.3M
Exchange
NASDAQ Capital Market
Winston Score
26
Winston is worried
Below-average fundamentals — multiple weak pillars.
Data as of Aug 13, 2026 · filings through Jun 30, 2026

Share count rising — dilution

+43.5% over 4y

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

Diluted shares outstanding: 43.4M (2021) → 62.2M (2025)

Cytosorbents is a medical device company that makes a blood-filtering technology called CytoSorb. The device is designed to remove dangerous levels of toxins, drugs, and inflammatory substances from a patient's blood during serious medical crises like sepsis, organ failure, or heart surgery. Hospitals and intensive care units in Europe and other countries are the main customers.

The company earns revenue primarily by selling disposable CytoSorb cartridges, which are single-use filters that hospitals buy each time the treatment is needed. Cytosorbents operates mainly in Europe, where CytoSorb has broad regulatory approval, while its US approval remains limited to specific uses like cardiac surgery. The company has not yet reached profitability, as reflected in its negative operating margin, and its biggest challenge is expanding US regulatory approvals and convincing more hospitals to adopt the technology at a scale large enough to cover its ongoing research and operating costs.

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

+0.2% YoY

YoY Growth Rate

Slow revenue growth

EPS Growth

-325.1% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$5M/ year

Declining (-33% vs prior year)

13.7% of revenue

Below sector average (18%)

R&D spend declining — could signal cost-cutting or efficiency

Insider Activity

14.2%ownership

Insiders own a meaningful stake in the company

Cash Runway

~7 months

$4M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Short runway — potential dilution ahead through share issuance

Cash watch

Cytosorbents Corporation has less than a year of cash at its current burn rate. Growth investors should watch for potential share dilution from future fundraising — that directly reduces your ownership.

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
73.2%
Premium pricing power — 73.2% gross margin
Operating Margin
-27.4%
Losing money on operations — -27.4%
ROCE
-10.3%
Weak — -10.3% return on capital

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

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Growth

Sales YoY
+3.1%
Slow sales growth (+3.1% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Cash Conversion
N/A
Data not available
FCF Margin
-28.0%
Burning cash (-28.0%)

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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