2.35
price down icon4.47%   -0.11
pre-market  Pre-market:  2.35  
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Atossa Therapeutics Inc stock is traded at $2.35, with a volume of 472.68K. It is down -4.47% in the last 24 hours and down -51.55% 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:
$2.46
Open:
$2.51
24h Volume:
472.68K
Relative Volume:
4.96
Market Cap:
$23.44M
Revenue:
-
Net Income/Loss:
$-34.77M
P/E Ratio:
-0.71
EPS:
-3.3097
Net Cash Flow:
$-29.79M
1W Performance:
-48.35%
1M Performance:
-51.55%
6M Performance:
-78.08%
1Y Performance:
-81.14%
1-Day Range:
Value
$2.31
$2.51
1-Week Range:
Value
$2.31
$4.59
52-Week Range:
Value
$2.31
$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, RVMD

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
ATOS icon
ATOS
Atossa Therapeutics Inc
2.35 23.44M 0 -34.77M -29.79M -3.3097
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
450.46 114.33B 12.34B 4.34B 3.71B 16.87
REGN icon
REGN
Regeneron Pharmaceuticals Inc
614.98 64.47B 14.92B 4.42B 3.79B 41.04
ARGX icon
ARGX
Argen X Se Adr
884.20 54.99B 4.16B 1.29B 734.26M 19.58
ALNY icon
ALNY
Alnylam Pharmaceuticals Inc
287.80 38.42B 4.29B 577.22M 641.34M 4.2086
RVMD icon
RVMD
Revolution Medicines Inc
160.06 34.03B 742.00K -1.37B -1.07B -7.0731

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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Jun 15, 2026

Atossa Therapeutics brings medical innovation to Hudson Institute strategic discussions - Traders Union

Jun 15, 2026
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Jun 13, 2026

Atossa Therapeutics (ATOS) Q1 2026 Earnings: Narrowing Losses with Positive EPS SurpriseRevenue Warning Signal - newsline.com

Jun 13, 2026
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Jun 13, 2026

Atossa Therapeutics closes $4.5M registered direct offering By Investing.com - Investing.com Australia

Jun 13, 2026
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Jun 12, 2026

Atossa Therapeutics closes $4.5M registered direct offering - Investing.com UK

Jun 12, 2026
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Jun 12, 2026

Cancer-drug developer Atossa raises $4.5M, eyes $12M more - Stock Titan

Jun 12, 2026
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Jun 12, 2026

Atossa Therapeutics Announces Up To $16.5 Million Registered Direct Offering - Pulse 2.0

Jun 12, 2026
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Jun 12, 2026

Atossa Therapeutics examines biosecurity and scientific innovation after COVID 19 lessons - Traders Union

Jun 12, 2026
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Jun 12, 2026

Atossa Therapeutics (NASDAQ: ATOS) sells 1.36M shares with warrants in $4.5M deal - Stock Titan

Jun 12, 2026
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Jun 12, 2026

Atossa Therapeutics prices up to $16.5M direct offering - MSN

Jun 12, 2026
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Jun 11, 2026

Market Movers | Winners: XXII, PPCB, CCHH | Losers: BCPC, ATOS, BATL - Trefis

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics, Inc. (ATOS) Latest Stock News & Headlines - Yahoo Finance

Jun 11, 2026
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Jun 11, 2026

Top Midday Decliners - Moomoo

Jun 11, 2026
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Jun 11, 2026

12 Health Care Stocks Moving In Thursday's Intraday Session - Benzinga

Jun 11, 2026
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Jun 11, 2026

Crude Oil Edges Higher; Driven Brands Posts Upbeat Earnings - Benzinga

Jun 11, 2026
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Jun 11, 2026

Dow Jumps Over 250 Points; US Initial Jobless Claims RiseAtossa Therapeutics (NASDAQ:ATOS), Big Tree C - Benzinga

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics Launches $16.5 Million Registered Direct Offering - marketscreener.com

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics stock tumbles on $4.5M stock offering - Investing.com UK

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics Announces Registered Direct Offering and Warrants - TipRanks

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics stock tumbles on $4.5M stock offering By Investing.com - Investing.com UK

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics raises $4.5M in registered direct offering - Investing.com

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics raises $4.5M in registered direct offering By Investing.com - Investing.com Canada

Jun 11, 2026
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Jun 11, 2026

12 Health Care Stocks Moving In Thursday's Pre-Market Session - Benzinga

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics Prices Registered Direct Offering at $3.30, Netting About $4.1 Million - TradingView

Jun 11, 2026
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Jun 11, 2026

Atossa Therapeutics (ATOS) prices $3.30 registered direct stock and warrant sale - Stock Titan

Jun 11, 2026
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Jun 11, 2026

Biotech Atossa targets up to $16.5M to fund clinical work - Stock Titan

Jun 11, 2026
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Jun 10, 2026

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

Jun 10, 2026
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Jun 10, 2026

Atossa Therapeutics highlights Endoxifen progress as potential Breast Cancer treatment - Proactive financial news

Jun 10, 2026
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Jun 08, 2026

Atossa Therapeutics (ATOS) Climbs 1.79% as Shares Approach Key Resistance at $4.78Wedge Breakout - newsline.com

Jun 08, 2026
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Jun 08, 2026

Lowering mammographic breast density could cut future cancer risk, ATOSSA THERAPEUTICS, INC. asserts - Traders Union

Jun 08, 2026
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Jun 01, 2026

CEO Chat with Steven Quay, MD, PhD, Chairman, President, & CEO of Atossa Therapeutics - Yahoo Finance

Jun 01, 2026
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May 29, 2026

Atossa Therapeutics (ATOS) Edges Higher on Modest Gains, Holds Above Key SupportReversal Trade - The Legal Advocate

May 29, 2026
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May 29, 2026

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

May 29, 2026
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May 29, 2026

Cash from investing activities of Atossa Therapeutics, Inc. – DUS:YAG - TradingView

May 29, 2026
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May 27, 2026

Atossa Therapeutics (ATOS) Highlights Promising Data for (Z)-End - GuruFocus

May 27, 2026
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May 27, 2026

Atossa presents preclinical data on breast cancer drug at ASCO - Investing.com UK

May 27, 2026
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May 27, 2026

Atossa Presents New Data Highlighting (Z)-Endoxifen's Potential in Breast Cancer - Intellectia AI

May 27, 2026
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May 27, 2026

Atossa Therapeutics Announces ASCO 2026 Abstracts Highlighting (Z)-Endoxifen Activity Across ESR1 Mutations and Ongoing EVANGELINE Phase 2 Trial - PR Newswire

May 27, 2026
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May 27, 2026

(Z)-Endoxifen hits ESR1 breast cancer mutations in new trial - Stock Titan

May 27, 2026
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May 26, 2026

Duchenne Muscular Dystrophy Clinical Trial Pipeline: DelveInsight Highlights Major Advances, Transformative Therapies, and 75+ Leading Players Wheeling the Therapeutics Landscape - GlobeNewswire Inc.

May 26, 2026
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May 26, 2026

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

May 26, 2026
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May 23, 2026

Atossa Therapeutics (ATOS) Holds Steady Near Support Amid Modest DeclineScalping Stock Signals - newsline.com

May 23, 2026
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May 21, 2026

Atossa Therapeutics Announces Acceptance of Manuscript Highlighting Utrophin-Modulation Potential of (Z)-Endoxifen in Duchenne Muscular Dystrophy - BioSpace

May 21, 2026
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May 20, 2026

Atossa Therapeutics advances research on Z-endoxifen for Duchenne muscular dystrophy - Traders Union

May 20, 2026
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May 20, 2026

Atossa's New Research Findings on DMD - Intellectia AI

May 20, 2026
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May 17, 2026

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

May 17, 2026
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May 15, 2026

ATOS Should I Buy - Intellectia AI

May 15, 2026
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May 14, 2026

Atossa Therapeutics (ATOS) director granted 10,000 RSUs vesting after 2026 - Stock Titan

May 14, 2026
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May 14, 2026

ATOS (ATOS) director Stephen Galli receives 10,000 RSU equity grant - Stock Titan

May 14, 2026
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May 14, 2026

Atossa Therapeutics (ATOS) director granted 10,000 RSUs in stock award - Stock Titan

May 14, 2026
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May 14, 2026

Atossa (NASDAQ: ATOS) director awarded 10,000 RSUs in stock grant - Stock Titan

May 14, 2026
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May 14, 2026

Atossa Therapeutics (ATOS) director granted 10,000-share RSU award - Stock Titan

May 14, 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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$97.46
price down icon 0.40%
$30.03
price down icon 0.03%
$90.80
price up icon 0.29%
$54.27
price down icon 1.09%
ONC ONC
$268.20
price up icon 1.41%
$160.06
price up icon 4.02%
Cap:     |  Volume (24h):