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Atossa Therapeutics NasdaqCM:ATOS Atossa Therapeutics, Inc. operates as a clinical-stage biopharmaceutical company that develops medicines in the areas of unmet medical need in oncology for women breast cancer and other conditions in the United States. The company's lead drug candidate is oral (Z)-endoxifen, an active metabolite of tamoxifen, which is in Phase II clinical trials to treat and prevent breast cancer. It also develops immunotherapy/chimeric antigen receptor therapy programs. 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 based in Seattle, Washington.

Location: 107 Spring Street, Seattle, WA, 98104, United States | Website: https://www.atossatherapeutics.com | Industry: Biotechnology | Sector: Healthcare

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52 Wk Range

$ - $

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Volume

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Avg Volume

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Enterprise Value

33.12M

Cash

65.12M

Avg Qtr Burn

-5.573M

Short % of Float

5.53%

Insider Ownership

0.07%

Institutional Own.

26.58%

Qtr Updated

03/31/25

Drug Pipeline

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Drug & Indication	Stage & Event	Catalyst Date
(Z)-endoxifen Details Cancer, Ductal Carcinoma In Situ	Phase 2 Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
(Z)-endoxifen + Abemaciclib (VERZENIO®) Details Cancer, Breast cancer	Phase 2 Data readout	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
AT-H201 Details COVID-19	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.
AT-301 Details COVID-19	Failed Discontinued	Some catalyst date You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details. You must sign up to see the catalyst details.Sign up now.