Atossa Therapeutics

ATOS

Market cap $133M

25+ year life-sciences finance leader brings revenue-forecasting rigor, public-company controls, and capital-markets experience as Atossa prepares for commercial operations with (Z)-endoxifen SEATTLE , Oct. 14, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) ("Atossa" or the "Company"), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, announces the appointment of Mark Daniel, CPA (WA; inactive), as Chief Financial Officer. Mr. Daniel is a senior finance leader with more than 25 years of experience building the forecasting cadence, systems, and public-company discipline that support revenue scale in global life-science businesses.

AR, BTCS and ATOS have been added to the Zacks Rank #5 (Strong Sell) List on October 14, 2025.

Portfolio covers high-purity Z-endoxifen enteric formulations, performance characteristics, and manufacturing methods, part of Atossa's multi-jurisdiction IP strategy to support clinical and commercial plans SEATTLE , Oct. 13, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) ("Atossa" or the "Company"), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, announces key progress in its global intellectual-property strategy for Z-endoxifen, including the issuance of an Israeli patent and continued renewals that reinforce protection for the Company's lead program across major jurisdictions. The Israeli patent (No.

Changes are expected to reduce future study costs, accelerate objective readouts, and extend operating runway under current plans SEATTLE , Oct. 6, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS; "Atossa" or the "Company), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, announces an amendment to its Phase 2 EVANGELINE study of (Z)-endoxifen in premenopausal women with newly diagnosed early-stage ER+/HER2- breast cancer. The amended, non-registrational design is expected to accelerate objective readouts while reducing projected future study costs, consistent with Atossa's focus on extending operating runway and deploying capital where it is most impactful.

Veteran development leader with successful regulatory approvals record returns to lead late-stage clinical and regulatory programs to address multiple unmet clinical needs SEATTLE , Oct. 1, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS; "Atossa" or the "Company"), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, announces the appointment of Janet R. Rea, MSPH to its newly created position Senior Vice President, R&D.

SEATTLE, Sept. 17, 2025 (GLOBE NEWSWIRE) -- Atossa Therapeutics, Inc. (Nasdaq: ATOS; “Atossa” or the “Company”), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, today announces it has appointed CORE IR, a strategic investor relations, public relations, and corporate advisory firm, to support the Company's ongoing investor relations and communications initiatives.

Type C FDA Meeting Requested, Update Expected by Year-End 2025 SEATTLE , Sept. 8, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS; "Atossa" or the "Company") announced today it has requested a Type C meeting with the U.S. Food and Drug Administration (FDA) to discuss a regulatory strategy aimed at accelerating development of low-dose (Z)-endoxifen for breast cancer risk reduction.

Dr. Steven Quay, Chairman and Chief Executive Officer to participate in Fireside Chat with Emily Bodnar, HCW Biotech Research Analyst SEATTLE , Aug. 28, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) ("Atossa" or the "Company"), a clinical-stage biopharmaceutical company developing new approaches in breast cancer treatment and prevention, today announced that Dr. Steven Quay, Chairman and Chief Executive Officer, will participate in a fireside chat with biotech research analyst, Emily Bodnar, at the H.C. Wainwright (HCW) 27th Annual Global Investment Conference on Monday, September 8, 2025, at 3:00 p.m.

Monotherapy Phase 2 study designed with FDA input; IND expected in Q4 2025 Topline results anticipated in 2026  Positions Atossa for transition into registrational Phase 3 development SEATTLE , Aug. 20, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) ("Atossa" or the "Company"), a clinical-stage biopharmaceutical company developing innovative medicines for breast cancer, announced today it has selected PSI, a leading global contract research organization (CRO), to operationalize and manage its planned (Z)-endoxifen monotherapy dose-ranging study in women with metastatic breast cancer (mBC). The study was designed following guidance from the U.S. Food and Drug Administration (FDA) and is intended to directly inform a subsequent Phase 3 trial.

FDA Provides Positive Feedback, Clears Path for Atossa to File IND for (Z)-Endoxifen in Metastatic Breast Cancer; FDA Indicates No Additional Toxicity Studies Required Strong I-SPY2 Results Reinforce Efficacy of Atossa's Monotherapy at 3-weeks SEATTLE , Aug. 12, 2025 /PRNewswire/ -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) (Atossa or the Company), a clinical-stage biopharmaceutical company developing innovative medicines for breast cancer, today announced its financial results for the second quarter ended June 30, 2025 and provided an update on recent company developments. "Atossa continues to make meaningful and measurable progress across our pipeline, underscored by recent, highly constructive interactions with the FDA that further support our (Z)-endoxifen development strategy in metastatic breast cancer," stated Dr. Steven Quay, Chairman and CEO of Atossa Therapeutics.