2.64
price up icon3.94%   0.10
after-market After Hours: 2.61 -0.03 -1.14%
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Atossa Therapeutics Inc stock is traded at $2.64, with a volume of 57,039. It is up +3.94% in the last 24 hours and up +15.03% 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:
$2.54
Open:
$2.56
24h Volume:
57,039
Relative Volume:
0.38
Market Cap:
$26.35M
Revenue:
-
Net Income/Loss:
$-37.64M
P/E Ratio:
-0.6041
EPS:
-4.3698
Net Cash Flow:
$-33.40M
1W Performance:
-5.38%
1M Performance:
+15.03%
6M Performance:
-37.29%
1Y Performance:
-77.36%
1-Day Range:
Value
$2.45
$2.65
1-Week Range:
Value
$2.44
$2.7827
52-Week Range:
Value
$1.70
$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
2026-08-11
Name
Latest SEC Filings
Name
ATOS's Discussions on Twitter

Compare ATOS vs VRTX, REGN, ARGX, MRNA, RVMD

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
ATOS icon
ATOS
Atossa Therapeutics Inc
2.64 25.85M 0 -37.64M -33.40M -4.3698
VRTX icon
VRTX
Vertex Pharmaceuticals Inc
547.59 136.93B 12.34B 4.34B 3.71B 16.87
REGN icon
REGN
Regeneron Pharmaceuticals Inc
828.50 85.11B 14.92B 4.42B 3.79B 41.04
ARGX icon
ARGX
Argen X Se Adr
1,011.11 64.95B 4.16B 1.29B 734.26M 19.58
MRNA icon
MRNA
Moderna Inc
138.89 53.23B 2.23B -3.19B -1.60B -8.1462
RVMD icon
RVMD
Revolution Medicines Inc
211.58 45.38B 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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Aug 19, 2026

Atossa Therapeutics advances investigational Z-endoxifen research for broader DMD applications - Traders Union

Aug 19, 2026
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Aug 19, 2026

We're A Little Worried About Atossa Therapeutics' (NASDAQ:ATOS) Cash Burn Rate - Sahm

Aug 19, 2026
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Aug 14, 2026

Daily Brief Health Care: Modern Dental Group, Suzhou Zelgen Biopharmaceuticals, Blue Water Vaccines, Ono Pharmaceutical, Ensysce Biosciences , Dyadic International , Atossa Therapeutics and more - Smartkarma

Aug 14, 2026
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Aug 14, 2026

ATOS: Multiple Catalysts Converge in 2H26 - Smartkarma

Aug 14, 2026
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Aug 14, 2026

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

Aug 14, 2026
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Aug 14, 2026

Atossa Therapeutics pursues ESR1 mutation research to tackle endocrine resistance in breast cancer - Traders Union

Aug 14, 2026
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Aug 12, 2026

Analysts Offer Insights on Healthcare Companies: Atossa Therapeutics (ATOS), Corvus Pharmaceuticals (CRVS) and Perspective Therapeutics (CATX) - The Globe and Mail

Aug 12, 2026
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Aug 12, 2026

Maxim Group Maintains Atossa Therapeutics(ATOS.US) With Buy Rating, Maintains Target Price $10 - Moomoo

Aug 12, 2026
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Aug 12, 2026

Atossa Therapeutics shifts clinical focus to pre-surgical breast cancer patients - Traders Union

Aug 12, 2026
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Aug 11, 2026

Maxim Group Maintains Atossa Therapeutics(ATOS.US) With Buy Rating, Cuts Target Price to $10 - Moomoo

Aug 11, 2026
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Aug 10, 2026

Atossa Therapeutics Inc reports results for the quarter ended June 30Earnings Summary - TradingView

Aug 10, 2026
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Aug 10, 2026

Weekly Recap: Q2 net loss, financing and (Z)-endoxifen Phase 2 progress - TradingView

Aug 10, 2026
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Aug 08, 2026

Atossa Therapeutics reports Q2 2026 results, ad... - Pluang

Aug 08, 2026
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Aug 08, 2026

Atossa Therapeutics (ATOS) Dips 2.48% to $2.36 as Stock Tests Key Support ZoneLast Point Resistance - vinanet.vn

Aug 08, 2026
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Aug 07, 2026

Atossa Therapeutics Inc expected to post a loss of $1.08 a shareEarnings Preview - TradingView

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics investigates (Z)-endoxifen for McCune-Albright syndrome and endocrine disorders - tradersunion.com

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics (ATOS) Advances Clinical Pipeline Amid Valua - GuruFocus

Aug 07, 2026
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Aug 07, 2026

Form 8K Atossa Therapeutics Inc For: 7 August By Investing.com - Investing.com Canada

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics Q2 net loss widens on lower interest income - TradingView

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics reports Q2 2026 net loss $8.5M, cash $26.1M; advances (Z)-endoxifen programs - TradingView

Aug 07, 2026
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Aug 07, 2026

ATOS: Q2 2026 net loss was $8.5M; (Z)-endoxifen programs advanced and $4.5M in new capital raised - TradingView

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics Reports Second Quarter 2026 Financial Results and Provides a Corporate Update - PR Newswire

Aug 07, 2026
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Aug 07, 2026

ATOSSA THERAPEUTICS, INC. Q2 2026: Net loss $(8.49M), EPS $(0.95) — 10-Q Summary - TradingView

Aug 07, 2026
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Aug 07, 2026

Atossa Therapeutics (NASDAQ: ATOS) posts $18.1M loss, flags going concern risk - Stock Titan

Aug 07, 2026
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Aug 06, 2026

Atossa Therapeutics strengthens pipeline with new data on Z-endoxifen breast cancer therapy - tradersunion.com

Aug 06, 2026
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Aug 05, 2026

Calendrier des fractionnements d'actions pour: - Yahoo Finance France

Aug 05, 2026
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Aug 03, 2026

CNSY Stock Price and Chart — NASDAQ:CNSY - TradingView

Aug 03, 2026
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Aug 03, 2026

Atossa Therapeutics advances rare disease pipeline with (Z)-endoxifen strategy - Traders Union

Aug 03, 2026
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Aug 01, 2026

ATOS Q1 2026 Earnings: EPS Surprise of 82.23% Narrows Loss Despite No Revenue; Stock Down 5.48%Financial Health Score - vinanet.vn

Aug 01, 2026
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Jul 31, 2026

Atossa Therapeutics advances biomarker-driven Z-endoxifen treatment for breast cancer - Traders Union

Jul 31, 2026
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Jul 30, 2026

Atossa Therapeutics (ATOS) Focuses on Execution Amid Challenging Valuation and Mixed Guru Interest - GuruFocus

Jul 30, 2026
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Jul 28, 2026

Atossa study shows preclinical activity in breast cancer models By Investing.com - Investing.com South Africa

Jul 28, 2026
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Jul 28, 2026

Atossa Therapeutics (ATOS) Unveils Promising Preclinical Breast Cancer Study Amidst Challenging Valuation - GuruFocus

Jul 28, 2026
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Jul 28, 2026

Atossa study shows preclinical activity in breast cancer models - Investing.com

Jul 28, 2026
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Jul 28, 2026

Atossa Therapeutics Announces Publication of Novel (Z)-Endoxifen-Related Compounds Demonstrating Potent Anti-Cancer Activity in ER-Positive Breast Cancer - Morningstar

Jul 28, 2026
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Jul 27, 2026

Atossa Therapeutics Inc (ATOS) Revenue Breakdown: Business Segments, Regional Revenue & Profit Contribution - TradingKey

Jul 27, 2026
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Jul 27, 2026

Atossa Therapeutics (ATOS) Gains 4.6%: Biotech Stock Tests Key ResistanceETF Flow - dars.gov.et

Jul 27, 2026
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Jul 26, 2026

TradingKey - TradingKey

Jul 26, 2026
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Jul 25, 2026

Atossa Therapeutics Inc (ATOS) Shareholder Structure: Major Shareholders & Institutional Holdings - TradingKey

Jul 25, 2026
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Jul 25, 2026

ATOS Q1 2026 Earnings: EPS Surprise of 82.23% Amidst Pre-Revenue StageQuarterly Earnings - vinanet.vn

Jul 25, 2026
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Jul 24, 2026

Atossa Therapeutics Inc (ATOS) Dividends & Stock Splits: Historical Payouts and Event Timeline - TradingKey

Jul 24, 2026
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Jul 24, 2026

ATOS|Atossa Therapeutics Inc|Price:2.295|Chg%:-0.115 - TradingKey

Jul 24, 2026
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Jul 23, 2026

ATOSSA THERAPEUTICS, INC. advances omics and organoid research in rare cancer field - Traders Union

Jul 23, 2026
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Jul 21, 2026

Atossa Therapeutics (ATOS) Unveils Promising Data for (Z)-Endoxi - GuruFocus

Jul 21, 2026
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Jul 21, 2026

Atossa Therapeutics (ATOS) Unveils Promising Data for (Z)-Endoxifen in Rare Disease Treatment - GuruFocus

Jul 21, 2026
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Jul 21, 2026

Atossa Therapeutics highlights (Z)-endoxifen's dual action for rare McCune-Albright Syndrome treatment. - Pluang

Jul 21, 2026
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Jul 21, 2026

Atossa Therapeutics Announces Presentation of Mechanism-Driven (Z)-Endoxifen Data in McCune-Albright Syndrome at AACR Special Conference on Rare Cancers - PR Newswire

Jul 21, 2026
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Jul 20, 2026

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

Jul 20, 2026
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Jul 18, 2026

NioCorp and Atossa Therapeutics Interviews to Air on the RedChip Small Stocks, Big Money(TM) Show on Bloomberg TV - The News-Press

Jul 18, 2026
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Jul 12, 2026

Price to sales forward of Atossa Therapeutics, Inc. – DUS:YAG - TradingView

Jul 12, 2026
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Jul 12, 2026

Enterprise value to revenue forward of Atossa Therapeutics, Inc. – DUS:YAG - TradingView

Jul 12, 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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$123.98
price up icon 0.00%
$61.33
price up icon 0.03%
$112.82
price down icon 3.22%
$236.01
price down icon 0.09%
ONC ONC
$371.98
price down icon 0.66%
$211.58
price up icon 1.01%
Cap:     |  Volume (24h):