Atossa Therapeutics

1D
1W
1M
3M
YTD
1Y
5Y
ALL

Why Robinhood?

Robinhood gives you the tools you need to put your money in motion. You can buy or sell ATOS and other ETFs, options, and stocks.

About ATOS

Atossa Therapeutics, Inc. operates as a clinical-stage pharmaceutical company, which engages in the development of novel therapeutics and delivery methods for the treatment of breast cancer and other breast conditions. The company was founded by Steven C. 

CEO
Steven C. Quay
CEOSteven C. Quay
Employees
15
Employees15
Headquarters
Seattle, Washington
HeadquartersSeattle, Washington
Founded
2008
Founded2008
Employees
15
Employees15

ATOS Key Statistics

Market cap
40.13M
Market cap40.13M
Price-Earnings ratio
-1.33
Price-Earnings ratio-1.33
Dividend yield
Dividend yield
Average volume
88.47K
Average volume88.47K
High today
$5.01
High today$5.01
Low today
$4.52
Low today$4.52
Open price
$4.92
Open price$4.92
Volume
70.84K
Volume70.84K
52 Week high
$19.35
52 Week high$19.35
52 Week low
$3.76
52 Week low$3.76

Stock Snapshot

Atossa Therapeutics(ATOS) stock is priced at $4.74, giving the company a market capitalization of 40.13M. It carries a P/E multiple of -1.33.

As of 2026-03-06, Atossa Therapeutics(ATOS) stock has fluctuated between $4.52 and $5.01. The current price stands at $4.74, placing the stock +4.9% above today's low and -5.4% off the high.

Atossa Therapeutics(ATOS) shares are trading with a volume of 70.84K, against a daily average of 88.47K.

During the past year, Atossa Therapeutics(ATOS) stock moved between $3.76 at its lowest and $19.35 at its peak.

During the past year, Atossa Therapeutics(ATOS) stock moved between $3.76 at its lowest and $19.35 at its peak.

People also own

Based on the portfolios of people who own ATOS. This list is generated using Robinhood data, and it’s not a recommendation.

Similar Marketcap

This list is generated by looking at the six larger and six smaller companies by market cap in relation to this company.

Popular Stocks

This list is generated by looking at the top 100 stocks and ETFs most commonly held by Robinhood customers and showing a random subset

Newly Listed

This list is generated by showing companies that recently went public.

All investments involve risks, including the loss of principal. Securities trading offered through Robinhood Financial LLC, Member SIPC and a registered broker-dealer. Options are risky and aren’t suitable for all investors. To learn more about risks, read the Options Disclosure Document.