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Atossa Therapeutics Inc

ATOS

NASDAQ

Biotechnology

$2.60

USD

+0.04 (+1.56%)

At close: Aug 14, 2026, 4:00 PM EDT

Market Cap $24.95M

Volume 95.9K

Price (USD)
Price (USD)

About Atossa Therapeutics Inc

Atossa Therapeutics, Inc. operates as a clinical-stage biopharmaceutical company, which engages in the development of novel therapeutics and delivery methods for the treatment of breast cancer and other breast conditions. The company is headquartered in Seattle, Washington and currently employs 14 full-time employees. The company went IPO on 2012-11-08. The company is engaged in developing medicines in areas of unmet medical need in oncology with a focus on women’s breast cancer and other breast conditions. Its lead drug candidate under development is oral (Z)-endoxifen, which it is developing for both the prevention and treatment of breast cancer. (Z)-endoxifen is the potent Selective Estrogen Receptor Modulator for estrogen receptor inhibition and causes estrogen receptor degradation. In addition to its potent anti-estrogen effects, (Z)-endoxifen has been shown to target PKCB1, a known oncogenic protein, at clinically attainable blood concentrations. The company is developing a form of (Z)-endoxifen which is administered orally for the potential treatment of breast cancer and reduction of breast density. The company has completed four Phase I clinical studies and two Phase II clinical studies with its proprietary (Z)-endoxifen (including oral and topical formulations).

CEO

Dr. Steven Quay

HQ

Seattle, WASHINGTON, US

Founded

2012

Employees

14

Key Metrics

2 metrics our research team weighs before forming a view on ATOS.

Based on Quantli research · SEC filings · as of Q2 2026

METRIC

VALUE

CHANGE

TREND (3Y)

ROE (TTM)

-140.5%

-90.8 pp

Free Cash Flow (TTM)

$-35.78M

Financial Snapshot

Full Financials

Revenue

$0

YoY

Gross Margin

YoY

Net Income

$-37.71M

-31.3%

YoY

Operating Cash Flow

$-35.77M

-43.0%

YoY

Key Statistics

Open

$2.54

Previous Close

$2.56

Day Range

$2.43 - $2.69

52 Week Range

$1.70 - $19.35

Volume

95.9K

Average Volume (10 Days)

50.0K

Dividend Yield

Valuation Measurement

Market Cap

$24.95M

P/E Ratio (TTM)

Price / Book

0.93

Financial Highlights

Return on Assets

-116.8%

Return on Equity

-140.5%

Revenue (TTM)

$0

Net Income (TTM)

$-37.71M

Diluted EPS (TTM)

-$4.38

Total Cash (MRQ)

$26.09M

Levered FCF (TTM)

$-35.78M

Turn research into action

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Swing Strategy

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Risk-tolerant

Trend Following

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Best for:

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Position Strategy

Ride market cycles. Patient hold.

Best for:

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Earnings Calendar

Next Earnings

Estimated Q3 Release

Nov 10

Est. EPS

Adjusted consensus estimate

-$1.11