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Carisma Therapeutics

CARM
58
Biotechnology · Healthcare
Winston Score
58
Winston is curious
A decent business — some strong pillars, some weaker.
Data as of Aug 23, 2026 · filings through Sep 30, 2025
How the score breaks down
Quality
Good
Growth
Strong
Cash Flow
Weak
Stability
Good
Valuation
Good

Winston Score History

The full picture

Carisma Therapeutics is a small biotech company working on new cancer treatments. Instead of using the more common T-cell approach, Carisma engineers a different type of immune cell called a macrophage to find and attack tumors. Its main focus is on developing CAR-M (chimeric antigen receptor macrophage) therapies, which are designed for patients with solid tumor cancers who have few other options.

The company earns most of its revenue from research grants and partnerships rather than product sales, since it has no approved drugs on the market yet. Carisma operates primarily in the United States and is a very early-stage company, meaning it spends far more money than it brings in — which explains the deeply negative return on invested capital. Its main edge is its proprietary macrophage platform, which is a less crowded space than T-cell therapies, but the biggest risk is that clinical trials could fail, and the company may need to raise more cash to keep operating.

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Growth Profile

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

Revenue Growth

>+1,000% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+445.2% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

28.0%ownership

Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$3M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

Carisma Therapeutics grew revenue 1237% 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.

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Quality

Profit per sale
Gross Margin
100.0%
Premium pricing power — 100.0% gross margin
Profit after running costs
Operating Margin
96.8%
Excellent — 96.8% operating margin
Return on the money invested
ROCE
N/A
Data not available

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Growth

Sales growth
Sales YoY
+159.7%
Fast-growing sales (+159.7% YoY)
Profit growth
EPS YoY
N/A
Data not available
How steady the profit is
EPS Consistency
7/8 quarters
Every recent quarter grew earnings vs last year

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Cash Flow

Profit that turns into cash
Cash Conversion
-279%
Weak — only -279% of profit becomes cash
Spare cash per sale
FCF Margin
-42.6%
Burning cash (-42.6%)

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

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Stability

What it owes vs what it owns
Debt / Equity
N/A
Data not available
Covers its interest
Interest Cover
100.00x
Comfortably covers interest (100.0x)

Interest coverage above 8. Profits cover interest many times over.

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Valuation

Price vs profit
P/E Ratio (TTM)
0.0x
no trend
Attractive valuation — P/E 0.0

P/E under 10. The price tag is small relative to last year's profit.

Cheaper or dearer next year
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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