Atossa Therapeutics closed at $2.24 on Nov 4, down 3.68%, 83.5% below its 52-week closing high. Volume of 19.5K shares was 0.21× its 20-day average (below normal).
Split-adjusted performance: -8.4% over one month, -61.3% over six months, -82.7% over one year.
Short interest was 683.5K shares at the Oct 15 settlement, down 13.3% from the prior report (7.7% of float, 5.8 days to cover).
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.
What is ATOS's market cap?
$22.40M, based on the Nov 4 close of $2.24.
Does Atossa Therapeutics pay a dividend?
No regular cash dividend has been paid in the last year.
How much of ATOS is sold short?
683.5K shares, 7.7% of float, as of Oct 15, 2026.
What sector is ATOS in?
Healthcare, in the Pharmaceuticals industry.
About Atossa Therapeutics
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.
Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology