NASDAQ: ATOS
Atossa Therapeutics Inc Stock

$1.88+0.11 (+6.21%)
Updated Jun 26, 2026
ATOS Price
$1.88
Fair Value Price
$4.80
Market Cap
$16.19M
52 Week Low
$1.70
52 Week High
$19.35
P/E
-0.41x
P/B
0.53x
P/S
N/A
PEG
N/A
Dividend Yield
N/A
Revenue
$0.00
Earnings
-$37.64M
Gross Margin
N/A
Operating Margin
N/A
Profit Margin
N/A
Debt to Equity
0.25
Operating Cash Flow
-$33M
Beta
1.22
Next Earnings
Aug 11, 2026
Ex-Dividend
N/A
Next Dividend
N/A

ATOS Overview

Atossa Therapeutics, Inc. is a clinical-stage biopharmaceutical firm dedicated to developing innovative medicines. Their primary focus lies in addressing unmet medical needs in women's oncology, especially breast cancer, along with other conditions, within the United States. The company's flagship therapeutic candidate is oral (Z)-endoxifen. This compound, an active metabolite derived from tamoxifen, is currently undergoing Phase II clinical trials for both the treatment and prevention of breast cancer. Beyond this, Atossa is also advancing immunotherapy and chimeric antigen receptor (CAR) therapy programs. Established in 2008, the company adopted its current name, Atossa Therapeutics, Inc., in January 2020, having previously operated as Atossa Genetics Inc. It is headquartered in Seattle, Washington.

Zen Rating

Our proven quant model uses 115 proprietary factors, including AI, to determine ATOS's potential to beat the market

FStrong Sell
  • Stocks with a Zen Rating of Strong Sell (F) had an average loss of -8.02% per year. Learn More

Zen Rating Component Grades

D
Zen Rating uses advanced AI algorithms that detect subtle patterns in market data; it anticipates future trends that point to superior stock price results.

Industry: Biotech

Industry Rating
F
ATOS
Ranked
#443 of 469

Top Ranked Stocks in Industry

Name / TickerPriceZen Rating
$230.02A
$9.79A
$54.77A
View Top Biotech Stocks

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ATOS News

Overview

Due Diligence Score

Industry Average (24)
You've viewed Due Diligence Score for 10/10 free stocks. Upgrade to Premium to see how ATOS scored across 33 valuation, financial, forecast, performance, and dividend due diligence checks.

Due Diligence Checks

ATOS ($1.88) is undervalued by 60.8% relative to our estimate of its Fair Value price of $4.80 based on Discounted Cash Flow (DCF) modelling, but does not have a significant margin of safety
Below Fair Value Valuation
ATOS ($1.88) is significantly undervalued by 60.8% relative to our estimate of its Fair Value price of $4.80 based on Discounted Cash Flow (DCF) modelling, which includes a healthy margin of safety
Significantly Below Fair Value Valuation
ATOS is unprofitable, so we... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation
There are 30 more ATOS due diligence checks available for Premium users.

Valuation

ATOS fair value

Fair Value of ATOS stock based on Discounted Cash Flow (DCF)

Price
$1.88
Fair Value
$4.80
Undervalued by
60.80%
ATOS ($1.88) is undervalued by... subscribe to Premium to read more.
Below Fair Value Valuation
ATOS ($1.88) is significantly undervalued... subscribe to Premium to read more.
Significantly Below Fair Value Valuation
ATOS is unprofitable, so we... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation

ATOS price to earnings (PE)

For valuing profitable companies with steady earnings

Company
-0.41x
Industry
16.27x
Market
12.39x

ATOS price to book (PB)

For valuing companies that are loss-making or have lots of physical asset

Company
0.53x
Industry
5.34x
ATOS is good value based... subscribe to Premium to read more.
P/B vs Industry Valuation

ATOS's financial health

Profit margin

Revenue
$0.0
Net Income
-$9.6M
Profit Margin
0%
ATOS's cash and short-term investments... subscribe to Premium to read more.
Interest Coverage Financials

Assets to liabilities

Assets
$37.9M
Liabilities
$7.5M
Debt to equity
0.25
ATOS's short-term assets ($36.67M) exceed... subscribe to Premium to read more.
Short-term Liabilities Financials
ATOS's short-term assets ($36.67M) exceed... subscribe to Premium to read more.
Long-term Liabilities Financials
ATOS's debt has increased relative... subscribe to Premium to read more.
Shrinking Debt Financials
ATOS's debt to equity ratio... subscribe to Premium to read more.
Healthy Debt to Equity Financials

Cash flow

Operating
-$9.6M
Investing
$0.0
Financing
$0.0
ATOS's cash and short-term investments... subscribe to Premium to read more.
Debt Coverage Financials

ATOS vs Biotech Stocks

TickerZen RatingMarket Cap1d %P/EP/B
ATOSF$16.19M+6.21%-0.41x0.53x
TPSTD$15.99M+2.86%-0.18x19.45x
BLRX$16.53M+1.61%N/A0.99x
HOWL$15.70M-3.29%-0.27x1.29x
QNRX$15.64M+5.95%N/A1.78x

Atossa Therapeutics Stock FAQ

What is Atossa Therapeutics's quote symbol?

(NASDAQ: ATOS) Atossa Therapeutics trades on the NASDAQ under the ticker symbol ATOS. Atossa Therapeutics stock quotes can also be displayed as NASDAQ: ATOS.

If you're new to stock investing, here's how to buy Atossa Therapeutics stock.

What is the 52 week high and low for Atossa Therapeutics (NASDAQ: ATOS)?

(NASDAQ: ATOS) Atossa Therapeutics's 52-week high was $19.35, and its 52-week low was $1.70. It is currently -90.28% from its 52-week high and 10.59% from its 52-week low.

How much is Atossa Therapeutics stock worth today?

(NASDAQ: ATOS) Atossa Therapeutics currently has 8,611,361 outstanding shares. With Atossa Therapeutics stock trading at $1.88 per share, the total value of Atossa Therapeutics stock (market capitalization) is $16.19M.

Atossa Therapeutics stock was originally listed at a price of $12,959.99 in Nov 8, 2012. If you had invested in Atossa Therapeutics stock at $12,959.99, your return over the last 13 years would have been -99.99%, for an annualized return of -49.33% (not including any dividends or dividend reinvestments).

How much is Atossa Therapeutics's stock price per share?

(NASDAQ: ATOS) Atossa Therapeutics stock price per share is $1.88 today (as of Jun 26, 2026).

What is Atossa Therapeutics's Market Cap?

(NASDAQ: ATOS) Atossa Therapeutics's market cap is $16.19M, as of Jun 29, 2026.

Market cap (market capitalization) is the total market value of a publicly traded company's outstanding shares.

Atossa Therapeutics's market cap is calculated by multiplying ATOS's current stock price of $1.88 by ATOS's total outstanding shares of 8,611,361.
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.