ATOS Atossa Therapeutics, Inc.
NASDAQActiveCommon stock
ATOS is the ticker symbol of Atossa Therapeutics, Inc., which is listed on NASDAQ. The symbol was previously used by Atossa Genetics Inc..
ATOS at a glance
- Symbol
- ATOS
- Company / issuer
- Atossa Therapeutics, Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Jan 2015 – present
- Sector
- Health Care
- Industry
- Biotechnology: Pharmaceutical Preparations
- Country
- United States
- IPO year
- 2012
- Market cap
- $20.5 million (Sep 2026)
ATOS ticker history
All companies and securities we have recorded under the symbol ATOS, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Atossa Genetics Inc. | — | Jan 2015 | Aug 2018 |
| Atossa Therapeutics, Inc. | Common Stock | Jan 2021 | present |
Atossa Therapeutics, Inc. company profile
- Industry (SIC)
- Pharmaceutical Preparations
- Headquarters
- Seattle, WA
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC filer category
- Non-accelerated filer<br>Smaller reporting company
- Latest annual report
- 10-K filed 2026-03-25
- Latest interim report
- 10-Q filed 2026-08-07
- SEC CIK
- 1488039
Former company names
- Atossa Genetics Inc (until 2019)
Source: SEC EDGAR filer data.
ATOS price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol ATOS?
ATOS is the ticker symbol of Atossa Therapeutics, Inc on NASDAQ.
Is ATOS still trading?
Yes. ATOS appears in the current NASDAQ listings as of Sep 2026.
Which companies have used the ticker ATOS?
Our listing records show ATOS used by: Atossa Genetics Inc.; Atossa Therapeutics, Inc..
Which exchange is ATOS listed on?
ATOS is listed on NASDAQ.
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