5.80
price up icon3.94%   0.22
after-market After Hours: 5.69 -0.11 -1.90%
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Atossa Therapeutics Inc stock is traded at $5.80, with a volume of 55,942. It is up +3.94% in the last 24 hours and up +12.62% over the past month. Atossa Therapeutics Inc is a clinical-stage biopharmaceutical company engaged in the development of proprietary medicines for oncology, with a focus on breast cancer and related conditions. The company's lead product candidate, oral (Z)-endoxifen, is a selective estrogen receptor modulator and degrader (SERM/SERD) in Phase 2 clinical development, being evaluated for the treatment and prevention of breast cancer and other indications.
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Previous Close:
$5.58
Open:
$5.53
24h Volume:
55,942
Relative Volume:
0.51
Market Cap:
$49.95M
Revenue:
-
Net Income/Loss:
$-34.77M
P/E Ratio:
-1.7524
EPS:
-3.3097
Net Cash Flow:
$-29.79M
1W Performance:
+9.85%
1M Performance:
+12.62%
6M Performance:
-52.53%
1Y Performance:
-53.48%
1-Day Range:
Value
$5.49
$5.89
1-Week Range:
Value
$5.162
$6.18
52-Week Range:
Value
$3.76
$19.35

Atossa Therapeutics Inc Stock (ATOS) Company Profile

Name
Name
Atossa Therapeutics Inc
Name
Phone
206.588.0256
Name
Address
1448 NW MARKET STREET, SEATTLE, WA
Name
Employee
14
Name
Twitter
@atossainc
Name
Next Earnings Date
2026-05-12
Name
Latest SEC Filings
Name
ATOS's Discussions on Twitter

Compare ATOS vs VRTX, REGN, ARGX, ALNY, ONC

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
ATOS icon
ATOS
Atossa Therapeutics Inc
5.80 48.05M 0 -34.77M -29.79M -3.3097
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
427.65 107.87B 12.32B 4.34B 3.19B 16.86
REGN icon
REGN
Regeneron Pharmaceuticals Inc
721.05 73.63B 14.92B 4.42B 3.79B 41.04
ARGX icon
ARGX
Argen X Se Adr
807.55 49.42B 4.16B 1.29B 734.26M 19.58
ALNY icon
ALNY
Alnylam Pharmaceuticals Inc
303.00 40.20B 3.71B 313.75M 465.38M 2.2571
ONC icon
ONC
Beone Medicines Ltd Adr
313.32 33.06B 5.36B 287.73M 924.18M 2.5229

Atossa Therapeutics Inc Stock (ATOS) Upgrades & Downgrades

Date Action Analyst Rating Change
Jan-26-18 Initiated Maxim Group Buy

Atossa Therapeutics Inc Stock (ATOS) Latest News

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03:00 AM

Number of shareholders of Atossa Therapeutics, Inc. – DUS:YAG - TradingView

03:00 AM
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01:30 AM

Atossa Therapeutics, Inc. Revenue Breakdown – DUS:YAG - TradingView

01:30 AM
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10:40 AM

Atossa Therapeutics posts trial data showing reduced breast density in premenopausal women - Traders Union

10:40 AM
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09:27 AM

Atossa reports breast density reduction in endoxifen trial - Investing.com

09:27 AM
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08:30 AM

Atossa Therapeutics Announces Publication of KARISMA Endoxifen Trial Demonstrating Significant Reduction in Mammographic Breast Density in Healthy Premenopausal Women - PR Newswire

08:30 AM
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May 04, 2026

Atossa Genetics stock surges after FDA rare disease designation By Investing.com - Investing.com South Africa

May 04, 2026
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May 04, 2026

Atossa Genetics stock surges after FDA rare disease designation - Investing.com

May 04, 2026
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May 04, 2026

Atossa Therapeutics (ATOS) Secures FDA Designation for Pediatric Treatment - GuruFocus

May 04, 2026
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May 04, 2026

Atossa gets rare pediatric disease tag for endoxifen in MAS By Investing.com - Investing.com South Africa

May 04, 2026
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May 04, 2026

FDA awards Atossa Therapeutics rare pediatric designation for Z-endoxifen milestone - Traders Union

May 04, 2026
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May 04, 2026

Atossa Therapeutics Receives FDA Rare Pediatric Disease Designation for (Z)-Endoxifen for McCune-Albright Syndrome - Morningstar

May 04, 2026
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May 04, 2026

ATOS Stock Price, Quote & Chart | ATOSSA THERAPEUTICS INC (NASDAQ:ATOS) - ChartMill

May 04, 2026
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May 01, 2026

ATOS Should I Buy - Intellectia AI

May 01, 2026
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Apr 28, 2026

Atossa Therapeutics (ATOS) price target decreased by 47.43% to 23.46 - MSN

Apr 28, 2026
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Apr 26, 2026

ATOS stock tumbles 32% — here’s what retail investors think of the reverse stock split - MSN

Apr 26, 2026
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Apr 25, 2026

Atossa Therapeutics Reports Fourth Quarter and Year-End 2025 Financial Results and Provides a Corporate Update - Aktiellt

Apr 25, 2026
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Apr 24, 2026

Atossa Therapeutics joins industry leaders at LSINW2026 to advance cell therapy innovation momentum - Traders Union

Apr 24, 2026
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Apr 17, 2026

Maxim Group Maintains Atossa Therapeutics(ATOS.US) With Buy Rating, Maintains Target Price $20 - Moomoo

Apr 17, 2026
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Apr 17, 2026

ATOS Ownership | ATOSSA THERAPEUTICS INC (NASDAQ:ATOS) - ChartMill

Apr 17, 2026
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Apr 16, 2026

Atossa Therapeutics Resolves Endoxifen Patent Disputes, Clarifies Rights - TipRanks

Apr 16, 2026
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Apr 16, 2026

Atossa Therapeutics reaches settlement in Endoxifen patent dispute By Investing.com - Investing.com South Africa

Apr 16, 2026
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Apr 16, 2026

Atossa Therapeutics reaches settlement in Endoxifen patent dispute - Investing.com

Apr 16, 2026
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Apr 16, 2026

Atossa Therapeutics (NASDAQ: ATOS) settles key Endoxifen patent fight - Stock Titan

Apr 16, 2026
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Apr 16, 2026

Atossa Therapeutics (ATOS) price target decreased by 31.37% to 44.62 - MSN

Apr 16, 2026
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Apr 14, 2026

Atossa Therapeutics advances endoxifen as new option for DMD management - Traders Union

Apr 14, 2026
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Apr 10, 2026

ATOS: Ascendiant Capital Lowers Price Target Despite Maintaining 'Buy' Rating | ATOS Stock News - GuruFocus

Apr 10, 2026
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Apr 09, 2026

Atossa Therapeutics, Inc. advances Z-endoxifen pipeline with key U.S. FDA designations into 2026 - Traders Union

Apr 09, 2026
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Apr 08, 2026

Atossa Therapeutics: A 2026 Regulatory Milestone in Sight - AD HOC NEWS

Apr 08, 2026
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Apr 03, 2026

ATOS Q4 2025 Earnings: Atossa Therapeutics Inc misses EPS with no revenue - Cổng thông tin điện tử tỉnh Tây Ninh

Apr 03, 2026
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Apr 01, 2026

Atossa Therapeutics Seeks Shareholder Approval for Further Stock Consolidation - AD HOC NEWS

Apr 01, 2026
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Mar 31, 2026

Atossa (NASDAQ: ATOS) CEO Steven Quay granted 65,000 RSUs after reverse split - Stock Titan

Mar 31, 2026
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Mar 31, 2026

Atossa Therapeutics announces issuance of U.S. patent - MSN

Mar 31, 2026
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Mar 30, 2026

Atossa Therapeutics (ATOS) CFO receives 63,000 RSUs over 3 years - Stock Titan

Mar 30, 2026
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Mar 30, 2026

[ARS] ATOSSA THERAPEUTICS, INC. SEC Filing - Stock Titan

Mar 30, 2026
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Mar 30, 2026

[DEF 14A] ATOSSA THERAPEUTICS, INC. Definitive Proxy Statement - Stock Titan

Mar 30, 2026
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Mar 30, 2026

NCCN event spotlights Atossa Therapeutics, Inc. breast cancer innovation - Traders Union

Mar 30, 2026
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Mar 29, 2026

ATOS Stock Drops After Hours On Earnings Miss — CEO Now Bets On New Uses For Its Experimental Cancer Drug - Stocktwits

Mar 29, 2026
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Mar 28, 2026

Entry Recap: Is Atossa Therapeutics Inc a speculative investment2026 Review & Consistent Profit Focused Trading Strategies - baoquankhu1.vn

Mar 28, 2026
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Mar 28, 2026

Risk Off: Is Atossa Therapeutics Inc stock heavily shorted2026 Market WrapUp & Accurate Entry/Exit Alerts - baoquankhu1.vn

Mar 28, 2026
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Mar 27, 2026

ATOS Price Today: Atossa Therapeutics, Inc. Stock Price, Quote & Chart - MEXC

Mar 27, 2026
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Mar 27, 2026

H.C. Wainwright raises Atossa Genetics price target to $25 from $7 - Investing.com

Mar 27, 2026
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Mar 26, 2026

ATOS Receives Significant Price Target Increase from HC Wainwrig - GuruFocus

Mar 26, 2026
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Mar 26, 2026

Atossa Therapeutics (ATOS) Sees Increased Price Target Following Stock Split - GuruFocus

Mar 26, 2026
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Mar 26, 2026

Aug Weekly: Is Atossa Therapeutics Incs growth already priced in2026 Decliners & Accurate Entry and Exit Point Alerts - baoquankhu1.vn

Mar 26, 2026

Atossa Therapeutics Inc Stock (ATOS) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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$28.82
price up icon 1.77%
$50.72
price up icon 0.56%
$95.26
price down icon 0.25%
$137.09
price down icon 1.69%
$151.07
price up icon 2.62%
ONC ONC
$313.32
price up icon 5.32%
Cap:     |  Volume (24h):