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ATOS
Atossa Therapeutics, Inc. Common Stock
stock NASDAQ

At Close

Oct 2, 2026 3:59:33 PM EDT

2.35USD+3.524%(+0.08)74,054

2.34Bid 2.37Ask 0.03Spread

Pre-market

Oct 2, 2026 9:16:30 AM EDT

2.18USD-3.965%(-0.09)1,646

After-hours

Oct 2, 2026 4:47:30 PM EDT

2.26USD-3.957%(-0.09)200

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open chart

Market Cap

23.25M

CEO

Steven Quay

Headquarters

Seattle, Washington, USA

Industry

Biotechnology

Next Earnings

Nov 11, 2026 (40d)

Last Split

Feb 2, 20261for15reverse

XLV

ATOS Stats

Avg. Vol. 10 Day

80,656

Avg. Vol. 30 Day

57,161

Market Cap

23,251,764

Shares Out.

9,979,298

On/Off Exchange

43%/57%

6 Month Beta

0.39

1 Year Beta

1.03

2 Year Beta

1.15

3 Year Beta

1.24

52 Week Low

1.70

52 Week High

19.35

SMA50

2.38

SMA200

4.73

1 Week

+22.63%

1 Month

-5.29%

3 Month

+9.91%

6 Month

-56.57%

1 Year

-83.12%

2 Year

-89.43%

5 Year

-95.22%

Profile

atossa therapeutics, inc. develops and markets medical devices, laboratory tests, and therapeutics to address breast health conditions in the united states. the company's lead program is the development of endoxifen, an active metabolite of tamoxifen which is in phase ii studies to treat and prevent breast cancer. it is also developing intraductal microcatheter technology to target the delivery of therapies, including fulvestrant, immunotherapies, and chimeric antigen receptor t-cell therapies, directly to the site of breast cancer. the company was formerly known as atossa genetics inc. and changed its name to atossa therapeutics, inc. in january 2020. atossa therapeutics, inc. was founded in 2009 and is headquartered in seattle, washington.

ATOS Stock Summary

Atossa Therapeutics, Inc. Common Stock (NASDAQ:ATOS) stock price today is $2.35, and today's volume is 74,054. ATOS is up 3.524% today. The 30 day average volume is 57,161. ATOS market cap is 23.25M with 9,979,298 shares outstanding.