Healthcare Sector

ATOS

Market Tracker

  • ATOS (Selected)

    Atossa Therapeutics, Inc.

ATOS Most Active Options Strike Prices Whale BUY Activity - 5 day

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Represents the strikes that had the highest premium of whale flow (on the ASK side) over the past 5 trading days.

ATOS Most Active Options Strike Prices Whale SALES Activity - 5 day

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Represents the strikes that had the highest premium of whale flow (on the BID side) over the past 5 trading days.

ATOS Open Interest Trend

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Total Open Interest of Calls & Puts across all strikes and expirations over the past 16 trading days.

ATOS Largest 1-Day Open Interest Movements

Expires Type Strike OI Change Percent
04/17/2026 PUT $0.50 230 +200 +666.67%
04/17/2026 CALL $0.50 529 +10 +1.93%
04/17/2026 CALL $1.50 3,429 +6 +0.18%
02/20/2026 CALL $3.00 2 +1 +100.00%
02/20/2026 CALL $4.00 2 +1 +100.00%
01/16/2026 CALL $1.00 4,714 0
07/17/2026 CALL $4.00 26 0
07/17/2026 PUT $1.00 210 0
07/17/2026 PUT $2.00 0 0
07/17/2026 PUT $3.00 0 0
07/17/2026 PUT $4.00 0 0
01/16/2026 CALL $0.50 269 -5 -1.82%

Contracts with largest changes in open interest from the previous trading day to the current/most recent.

ATOS Major Holders

Name Pct Held Shares Total
Vanguard Total Stock Market Index Fund 2.98% 3.78M 5.1M
Vanguard Extended Market Index Fund 1.33% 1.69M 2.28M
Fidelity Extended Market Index Fund 0.53% 670.79k 905.56k
BlackRock Advantage Small Cap Core Fund 0.27% 340.5k 459.68k
iShares Micro Cap ETF 0.20% 258.2k 348.56k
Fidelity Total Market Index Fund 0.14% 182.91k 246.93k
Fidelity Series Total Market Index Fund 0.11% 142.17k 191.93k
Vanguard Balanced Index Fund 0.08% 98.1k 132.43k
Vanguard Institutional Index-Inst Total Stock Market Ind 0.07% 87.56k 118.2k
Fidelity NASDAQ Composite Index Fund 0.05% 65.69k 88.68k

ATOS News

  • Atossa Therapeutics CEO to Discuss Clinical Progress and Upcoming Milestones at 27th Annual H.C. Wainwright Global Investment Conference

    08/28 08:30 am

    Benzinga

    Read more
  • Atossa Therapeutics to Present at the 2024 Maxim Healthcare Virtual Summit

    10/14 05:08 pm

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Updated Protocol for Clinical Trial Evaluating (Z)-Endoxifen in Combination with Abemaciclib (VERZENIO®) in Women with ER+/HER2- Breast Cancer

    06/28 08:30 am

    GlobeNewswire Inc.

    Read more
  • Are Medical Stocks Lagging Alvotech (ALVO) This Year?

    06/25 09:40 am

    Zacks Investment Research

    Read more
  • Atossa Set to Join Russell 3000® Index Effective June 28, 2024

    06/17 08:30 am

    GlobeNewswire Inc.

    Read more
  • Is Atossa Genetics (ATOS) Stock Outpacing Its Medical Peers This Year?

    06/06 09:40 am

    Zacks Investment Research

    Read more
  • Atossa to Present at the Sidoti Small-Cap Investor Conference

    06/05 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Support of Clinical Study Testing New, Artificial Intelligence, Breast Cancer Risk Assessment Model

    05/28 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Genetics Inc. (ATOS) is a Great Momentum Stock: Should You Buy?

    05/20 12:00 pm

    Zacks Investment Research

    Read more
  • Atossa Therapeutics Announces Last Patient, Last Dose in its Phase 2 Karisma-Endoxifen Clinical Trial

    05/15 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces First Quarter 2024 Financial Results and Provides Corporate Update

    05/13 08:50 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Support of New Breast Cancer Screening Guidelines

    05/07 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Expanded Research Agreement with Weill Cornell Medicine to Further Evaluate Synergy Between Antibody Drug Conjugates (ADCs) and (Z)-Endoxifen

    04/29 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa (ATOS) Reports Positive Results From EVANGELINE Study

    04/11 10:10 am

    Zacks Investment Research

    Read more
  • Atossa to Participate in Noble Capital Markets Emerging Growth Healthcare Conference

    04/11 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Presents Data from 40mg Cohort of Phase 2 EVANGELINE Clinical Trial Showing 100% Disease Control Rate After 24-Weeks of Treatment with (Z)-Endoxifen

    04/09 11:59 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Year-End 2023 Financial Results and Provides Corporate Update

    04/01 04:00 pm

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Provides Five-Year (Z)-Endoxifen Treatment Update on FDA-Approved "Expanded Access" Program for a U.S. Breast Cancer Patient

    03/19 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Regains Compliance with Nasdaq Minimum Bid Price Listing Requirements

    03/18 08:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Appoints Breast Cancer Specialist Tessa Cigler, M.D., M.P.H. to its Board of Directors

    03/12 08:30 am

    GlobeNewswire Inc.

    Read more
  • Is Atossa Genetics (ATOS) Outperforming Other Medical Stocks This Year?

    12/08 10:40 am

    Zacks Investment Research

    Read more
  • Atossa Therapeutics Announces Full Enrollment of Phase 2 Karisma-Endoxifen Clinical Trial

    11/20 09:30 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Third Quarter 2023 Financial Results and Provides Corporate Update

    11/13 10:00 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Appoints Financial Executive Jonathan Finn to its Board of Directors

    11/09 10:00 am

    GlobeNewswire Inc.

    Read more
  • Atossa to Present at Cantor Fitzgerald Global Healthcare Conference 2023

    09/18 08:30 am

    GlobeNewswire Inc.

    Read more
  • Breast Cancer-Focused Atossa Therapeutics Can Possibly Change Treatment Paradigm: Analyst

    09/08 02:47 pm

    Benzinga

    Read more
  • Benzinga's Top Ratings Upgrades, Downgrades For September 8, 2023

    09/08 11:00 am

    Benzinga

    Read more
  • Atossa Therapeutics Receives Approval from Health Canada to Conduct Phase 2 EVANGELINE Clinical Trial in Canada

    07/20 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Regains Compliance with Nasdaq Minimum Bid Price Listing Requirements

    07/13 04:15 pm

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Provides Enrollment Update for Ongoing Phase 2 Karisma-Endoxifen Clinical Trial

    07/10 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Sponsored Research Agreement with Weill Cornell Medicine to Address Treatment Challenges in Triple Negative Breast Cancer

    07/06 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics and Quantum Leap Healthcare Provide Enrollment Update for (Z)-Endoxifen Arm of Ongoing I-SPY 2 Clinical Trial

    06/28 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces $10M Stock Repurchase Program

    06/27 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Sponsorship of Are You Dense MusicFest 2023

    06/22 04:15 pm

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Granted Additional Patent Protection for Endoxifen

    06/21 10:13 am

    GlobeNewswire Inc.

    Read more
  • Atossa to Participate in Fireside Chat at Healthcare Virtual Conference Presented by Maxim Group LLC

    06/14 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Completes Enrollment of Pharmacokinetic Run-In Cohort in Phase 2 EVANGELINE Clinical Trial Evaluating (Z)-Endoxifen as a Neoadjuvant Treatment for ER+ / HER2- Breast Cancer

    06/12 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Appoints Life Sciences Financial and Operations Industry Veteran Greg Weaver as Chief Financial Officer

    06/01 09:10 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces First Quarter 2023 Financial Results and Provides Corporate Update

    05/15 09:10 am

    GlobeNewswire Inc.

    Read more
  • Atossa to Present a Trial in Progress Poster on its Neoadjuvant Breast Cancer Phase 2 Clinical Trial, EVANGELINE, at the 2023 American Society of Clinical Oncology (ASCO) Annual Meeting

    05/09 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics to Participate in Tribe Public’s Webinar Event “Redefining Breast Cancer Prevention and Treatment”

    04/27 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces Year-End 2022 Financial Results and Provides Corporate Update

    03/22 04:05 pm

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics and Quantum Leap Healthcare Announce New Study Arm to Evaluate (Z)-Endoxifen in the Ongoing I-SPY 2 Clinical Trial

    03/21 09:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa to Present at the Sidoti Small-Cap Virtual Conference

    03/15 09:25 am

    GlobeNewswire Inc.

    Read more
  • Atossa Doses First Patient in Phase 2 Neoadjuvant Clinical Study of (Z)-Endoxifen in Premenopausal Women with ER+/HER2- Breast Cancer

    02/23 10:15 am

    GlobeNewswire Inc.

    Read more
  • Best Penny Stocks To Buy? 4 Stocks Under $3 To Watch This Week

    02/13 03:47 pm

    PennyStocks

    Read more
  • Atossa Therapeutics Further Strengthens Intellectual Property Portfolio with Additional Broad Patent for Endoxifen

    02/13 10:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Issues Letter to Shareholders

    01/25 10:15 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics Announces the Appointment of Eric Van Zanten as Vice President, Investor and Public Relations

    12/07 09:00 am

    GlobeNewswire Inc.

    Read more
  • Atossa Therapeutics, Inc. to Acquire Stake in Privately Held Dynamic Cell Therapies as Part of Overall CAR-T Strategy

    11/01 09:15 am

    GlobeNewswire Inc.

    Read more
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