ATOS - NASDAQ
Atossa Therapeutics, Inc.
$5.86
+0.0000%Atossa Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on the discovery and development of medicines in the areas of oncology and infectious diseases. The company's lead program is Endoxifen, an active metabolite of tamoxifen, which is in Phase II clinical trials to treat and prevent breast cancer. It is also developing AT-H201, an inhalation therapy to improve lung function in severely ill and hospitalized COVID-19 patients; AT-301, a proprietary drug candidate for nasal administration in patients diagnosed with COVID-19; and immunotherapy/chimeric antigen receptor therapy programs for the treatment of breast cancer. It has a research agreement with Dana-Farber Cancer Institute, Inc. to support research of cytokine-coated nanoparticles for the treatment of breast cancer. The company was formerly known as Atossa Genetics Inc. and changed its name to Atossa Therapeutics, Inc. in January 2020. Atossa Therapeutics, Inc. was founded in 2008 and is headquartered in Seattle, Washington.
At a Glance
Live SnapshotSEC Filings
ATOS - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
8-K 8-K 2026 N/A | April 16, 2026 | April 13, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | March 30, 2026 | March 30, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 25, 2026 | March 25, 2026 | 2026 | |
10-K 10-K 2025 FY FY | March 25, 2026 | December 31, 2025 | 2025 | |
8-K 8-K 2026 N/A | February 20, 2026 | February 19, 2026 | 2026 | |
8-K 8-K 2026 N/A | February 17, 2026 | February 17, 2026 | 2026 | |
8-K 8-K 2026 N/A | February 11, 2026 | February 11, 2026 | 2026 | |
8-K 8-K 2026 N/A | January 26, 2026 | January 20, 2026 | 2026 | |
8-K 8-K 2026 N/A | January 09, 2026 | January 09, 2026 | 2026 | |
8-K 8-K 2026 N/A | January 06, 2026 | January 06, 2026 | 2026 |
Understanding SEC Filings
Essential regulatory documents for investors
SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.
Annual Report
Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.
Quarterly Report
Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.
Current Report
Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.
Proxy Statement
Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.
Registration Statement
Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.
Foreign Annual Report
Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.
Why SEC Filings Matter
- Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
- Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
- Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
- Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
- Historical Context: Years of filings provide trend analysis and context for current performance
Research Paths
Snapshot
Start with context, operating signals, and key market metrics.
Value Model
Stress test fair value across bear, base, and bull assumptions.
Statements
Validate revenue quality, margins, and balance sheet durability.
Earnings Call
Read management commentary and compare it with reported outcomes.
Dividends
Check payout sustainability and long-term distribution behavior.
Analyst Expectations
Review consensus spread and where estimate risk is concentrated.