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Atossa Therapeutics Inc Stock Price, News & Analysis

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Welcome to our dedicated page for Atossa Therapeutics news (Ticker: ATOS), a resource for investors and traders seeking the latest updates and insights on Atossa Therapeutics stock.

Atossa Therapeutics Inc (NASDAQ: ATOS) is a clinical-stage biopharmaceutical company pioneering novel therapies for breast cancer and breast health conditions. This page provides investors and healthcare stakeholders with comprehensive access to official press releases, clinical trial developments, and regulatory updates directly from the company.

Track progress on key initiatives including (Z)-endoxifen clinical trials, innovative drug delivery systems like intraductal microcatheter technology, and strategic partnerships. Our curated news collection ensures timely updates on FDA communications, research milestones, and intellectual property developments relevant to oncology therapeutics.

Discover updates across three primary categories: clinical research advancements in estrogen receptor-targeted treatments, regulatory filings for breast cancer therapies, and scientific collaborations enhancing drug delivery platforms. Each update is sourced from verified company communications to maintain accuracy and compliance.

Bookmark this page for streamlined access to Atossa's latest developments in selective estrogen receptor modulation and precision medicine. Regularly updated to serve as your primary resource for understanding the company's progress in addressing unmet needs in oncology care.

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On July 26, 2021, Steven Quay and international scientists released a pre-print paper examining the RNA sequencing data of early COVID-19 patients, suggesting severe contamination at the Wuhan Institute of Virology. Findings indicate that specimens from December 2019 contained significant levels of an undisclosed H7N9 influenza vaccine, over six times the amount of SARS-CoV-2. Additionally, Nipah virus gene sequences were identified, raising concerns about genetic manipulation. This contamination is problematic, given the lethal nature of the pathogens involved.

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An international team of scientists, led by Dr. Steven Quay, has published a paper suggesting that a laboratory-acquired infection could be a more likely origin of COVID-19 than natural zoonotic transmission. The paper, presented to the US Congress, highlights insufficient biosafety levels in Wuhan labs and the absence of animal-to-human transmission evidence. Dr. Quay advocates for treating the lab leak theory as the primary hypothesis until new evidence emerges. Quay, a prominent figure in medicine, has contributed significantly to pharmaceuticals and pandemic survival strategies.

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Atossa Therapeutics (Nasdaq: ATOS) has received regulatory approval from the HREC to initiate a clinical study of its nebulized formulation AT-H201 in Australia. This therapy aims to assist both moderately to severely ill COVID-19 patients and long-haul patients suffering from post-infection pulmonary issues. The Phase 1/2a study will evaluate 60 participants and aims to determine the efficacy of AT-H201, which has shown promising potency in in vitro tests against SARS-CoV-2. Successful trial results and regulatory approvals are essential for commercialization.

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Atossa Therapeutics (Nasdaq: ATOS) announced its inclusion in the Russell 2000 and Russell 3000 Indexes, effective June 28, 2021. This event follows the announcement of preliminary additions on June 4 and June 14, 2021. CFO Kyle Guse highlighted this milestone as an opportunity to enhance investor awareness and liquidity. Membership in these indexes is determined by market-capitalization rankings and provides automatic inclusion in growth and value style indexes, impacting approximately $10.6 trillion in assets benchmarked against Russell's U.S. Indexes.

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Atossa Therapeutics, Inc. (Nasdaq: ATOS) has received approval from the Swedish Medical Product Agency to launch a Phase 2 clinical trial of its oral Endoxifen aimed at reducing mammographic breast density (MBD), a significant public health concern affecting millions of women. The study will involve about 240 pre-menopausal women and aims to assess the dose-response relationship of Endoxifen over six months. The company plans to initiate the trial once COVID-19 restrictions in Stockholm are lifted, with potential for broader future studies to evaluate Endoxifen's impact on breast cancer incidence.

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Atossa Therapeutics (Nasdaq:ATOS) reported final results from its Phase 2 study of oral Endoxifen for breast cancer. The primary endpoint was met, showing a 65.1% reduction in tumor cell activity, measured by Ki-67, dropping from 25.6% to 6%. All patients achieved a Ki-67 level below 25%, which correlates with improved long-term survival. Secondary endpoints confirmed Endoxifen's safety and tolerability, with no severe adverse events. Atossa plans to advance Endoxifen toward FDA approval, targeting the unmet need for effective treatments for ER+ breast cancer.

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Atossa Therapeutics, Inc. (Nasdaq: ATOS) will hold a webinar on June 9, 2021, at 8 am PT to discuss final data from its Phase 2 study of Endoxifen for breast cancer patients before surgery. The event will feature key executives, including Dr. Steven Quay, and will allow participants to engage with the management team. The company focuses on developing innovative therapies for oncology and infectious diseases, particularly breast cancer and COVID-19. Interested attendees can register via Tribe Public's platform.

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Atossa Therapeutics, led by Dr. Steven Quay, published research challenging the claim that the Wuhan Institute of Virology had no COVID-19 cases. The study highlights a statistical improbability given the 4.4% prevalence of COVID-19 in Wuhan during early 2020. The researchers argue that proper testing would likely have revealed positive cases among the 590 staff members at WIV. This analysis raises serious questions about the integrity of WIV's reported COVID cases.

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Physician-Scientist Dr. Steven C. Quay, CEO of Atossa Therapeutics (NASDAQ: ATOS), has been invited to brief U.S. Congress on his research concerning the origins of COVID-19. The virtual meeting will occur on May 24, 2021, where Dr. Quay will discuss evidence supporting the theory of a laboratory-origin virus from Wuhan, China. He contends existing data indicates a lab-leak scenario rather than natural zoonosis. The briefing aims to inform congressional members about these findings, which could influence future safety measures against pandemics.

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Atossa Therapeutics (Nasdaq: ATOS) reported its Q1 2021 financial results, revealing no sustainable revenue and cash reserves of approximately $137.7 million. The company concluded a Phase 2 study for oral Endoxifen, which showed positive results, and received FDA clearance for expanded access treatment in an ovarian cancer patient. Operating expenses increased by 20% to $3.5 million, driven by a 47% rise in R&D costs. The company plans to expand clinical studies and explore new opportunities moving forward.

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FAQ

What is the current stock price of Atossa Therapeutics (ATOS)?

The current stock price of Atossa Therapeutics (ATOS) is $0.8105 as of June 17, 2025.

What is the market cap of Atossa Therapeutics (ATOS)?

The market cap of Atossa Therapeutics (ATOS) is approximately 118.1M.
Atossa Therapeutics Inc

Nasdaq:ATOS

ATOS Rankings

ATOS Stock Data

118.07M
129.08M
0.06%
28.55%
7.05%
Biotechnology
Pharmaceutical Preparations
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United States
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