The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 12, 2026 | Cigler Tessa | Director | Grant(A) | 10K | — | $0 |
| May 12, 2026 | Galli Stephen J | Director | Grant(A) | 10K | — | $0 |
| May 12, 2026 | Finn Jonathan | Director | Grant(A) | 10K | — | $0 |
| May 12, 2026 | Remmel H. Lawrence | Director | Grant(A) | 10K | — | $0 |
| May 12, 2026 | Chen Shu-Chih | Director | Grant(A) | 10K | — | $0 |
| May 12, 2026 | Steinhart Richard I | Director | Grant(A) | 10K | — | $0 |
| Mar 27, 2026 | Quay Steven C | President & CEO, Director | Grant(A) | 65K | — | $0 |
| Mar 26, 2026 | Daniel Mark James | Chief Financial Officer | Grant(A) | 63K | — | $0 |
| Jan 20, 2026 | Quay Steven C | President & CEO, Director | Grant(A) | 332K | — | $0 |
| Jan 20, 2026 | Quay Steven C | President & CEO, Director | Grant(A) | 950K | $0.60 | $570K |
| Oct 14, 2025 | Daniel Mark James | Chief Financial Officer | Grant(A) | 578K | — | $0 |
| May 21, 2025 | Quay Steven C | President & CEO, Director | Buy(P) | 11K | $0.88 | $10K |
| May 15, 2025 | Steinhart Richard I | Director | Grant(A) | 125K | — | $0 |
| May 15, 2025 | Cigler Tessa | Director | Grant(A) | 125K | — | $0 |
| May 15, 2025 | Remmel H. Lawrence | Director | Grant(A) | 125K | — | $0 |
| May 15, 2025 | Galli Stephen J | Director | Grant(A) | 125K | — | $0 |
| May 15, 2025 | Rees Heather | Chief Financial Officer | Grant(A) | 544K | — | $0 |
| May 15, 2025 | Quay Steven C | President & CEO, Director | Grant(A) | 1.4M | — | $0 |
| May 15, 2025 | Chen Shu-Chih | Director | Grant(A) | 125K | — | $0 |
| May 15, 2025 | Finn Jonathan | Director | Grant(A) | 125K | — | $0 |
| Mar 26, 2025 | Remmel H. Lawrence | Director | Buy(P) | 10K | $0.70 | $7K |
| Jun 27, 2024 | Cigler Tessa | Director | Grant(A) | 125K | — | $0 |
| Jun 27, 2024 | Galli Stephen J | Director | Grant(A) | 125K | — | $0 |
| Jun 27, 2024 | Quay Steven C | President & CEO, Director | Grant(A) | 1.8M | — | $0 |
| Jun 27, 2024 | Rees Heather | SVP, Finance and Accounting | Grant(A) | 578K | — | $0 |
| Jun 27, 2024 | Chen Shu-Chih | Director | Grant(A) | 125K | — | $0 |
| Jun 27, 2024 | Remmel H. Lawrence | Director | Grant(A) | 125K | — | $0 |
| Jun 27, 2024 | Steinhart Richard I | Director | Grant(A) | 125K | — | $0 |
| Jun 27, 2024 | Finn Jonathan | Director | Grant(A) | 125K | — | $0 |
| Apr 10, 2024 | Finn Jonathan | Director | Buy(P) | 25K | $1.77 | $44K |
| Mar 9, 2024 | Cigler Tessa | Director | Grant(A) | 21K | — | $0 |
| Nov 15, 2023 | Finn Jonathan | Director | Grant(A) | 63K | — | $0 |
| Nov 15, 2023 | Weaver Gregory L | Former EVP, CFO, & Director, Director | Sell(S) | 50K | $0.65 | $33K |
| Jun 20, 2023 | Weaver Gregory L | EVP & CFO, Director | Buy(P) | 50K | $0.97 | $49K |
| Jun 1, 2023 | Weaver Gregory L | EVP & CFO, Director | Grant(A) | 2.6M | — | $0 |
| May 4, 2023 | Galli Stephen J | Director | Grant(A) | 125K | — | $0 |
| May 4, 2023 | Chen Shu-Chih | Director | Grant(A) | 125K | — | $0 |
| May 4, 2023 | Steinhart Richard I | Director | Grant(A) | 125K | — | $0 |
| May 4, 2023 | Remmel H. Lawrence | Director | Grant(A) | 125K | — | $0 |
| May 4, 2023 | Weaver Gregory L | Director | Grant(A) | 125K | — | $0 |
| Mar 2, 2023 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 558K | — | $0 |
| Mar 2, 2023 | Quay Steven C | President & CEO, Director | Grant(A) | 1.9M | — | $0 |
| May 13, 2022 | Weaver Gregory L | Director | Grant(A) | 50K | — | $0 |
| May 13, 2022 | Steinhart Richard I | Director | Grant(A) | 50K | — | $0 |
| May 13, 2022 | Remmel H. Lawrence | Director | Grant(A) | 50K | — | $0 |
| May 13, 2022 | Galli Stephen J | Director | Grant(A) | 50K | — | $0 |
| May 13, 2022 | Chen Shu-Chih | Director | Grant(A) | 50K | — | $0 |
| Feb 24, 2022 | Quay Steven C | President & CEO, Director | Grant(A) | 1.9M | — | $0 |
| Feb 24, 2022 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 747K | — | $0 |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 45K | $2.38 | $107K |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 5K | $5.64 | $26K |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 45K | $2.52 | $113K |
| Jul 2, 2021 | Weaver Gregory L | Director | Sell(S) | 107K | $5.58 | $600K |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 70K | $1.70 | $119K |
| Jul 2, 2021 | Weaver Gregory L | Director | Tax withholding(F) | 57K | $6.40 | $365K |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 45K | — | $0 |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 70K | — | $0 |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 45K | — | $0 |
| Jul 2, 2021 | Weaver Gregory L | Director | Option exercise(M) | 5K | — | $0 |
| May 14, 2021 | Weaver Gregory L | Director | Grant(A) | 50K | — | $0 |
| May 14, 2021 | Steinhart Richard I | Director | Grant(A) | 50K | — | $0 |
| May 14, 2021 | Remmel H. Lawrence | Director | Grant(A) | 50K | — | $0 |
| May 14, 2021 | Quay Steven C | President & CEO, Director | Grant(A) | 1.9M | — | $0 |
| May 14, 2021 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 850K | — | $0 |
| May 14, 2021 | Quay Steven C | President & CEO, Director | Grant(A) | 1.9M | — | $0 |
| May 14, 2021 | Chen Shu-Chih | Director | Grant(A) | 50K | — | $0 |
| May 14, 2021 | Galli Stephen J | Director | Grant(A) | 50K | — | $0 |
| May 15, 2020 | Galli Stephen J | Director | Grant(A) | 45K | — | $0 |
| May 15, 2020 | Chen Shu-Chih | Director | Grant(A) | 45K | — | $0 |
| May 15, 2020 | Steinhart Richard I | Director | Grant(A) | 45K | — | $0 |
| May 15, 2020 | Weaver Gregory L | Director | Grant(A) | 70K | — | $0 |
| May 15, 2020 | Remmel H. Lawrence | Director | Grant(A) | 45K | — | $0 |
| Apr 9, 2020 | Quay Steven C | President & CEO, Director | Grant(A) | 1.3M | — | $0 |
| Apr 9, 2020 | Quay Steven C | President & CEO, Director | Grant(A) | 195K | — | $0 |
| Apr 9, 2020 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 395K | — | $0 |
| Apr 9, 2020 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 195K | — | $0 |
| May 17, 2019 | Chen Shu-Chih | Director | Grant(A) | 45K | — | $0 |
| May 17, 2019 | Remmel H. Lawrence | Director | Grant(A) | 45K | — | $0 |
| May 17, 2019 | Galli Stephen J | Director | Grant(A) | 45K | — | $0 |
| May 17, 2019 | Steinhart Richard I | Director | Grant(A) | 45K | — | $0 |
| May 17, 2019 | Weaver Gregory L | Director | Grant(A) | 45K | — | $0 |
| Jan 13, 2019 | Quay Steven C | President & CEO, Director | Grant(A) | 2.3M | — | $0 |
| Jan 13, 2019 | Quay Steven C | President & CEO, Director | Disposed to issuer(D) | 2.3M | — | $0 |
| Jan 13, 2019 | Guse Kyle | CFO, Gen Counsel and Secretary | Disposed to issuer(D) | 700K | — | $0 |
| Jan 13, 2019 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 800K | — | $0 |
| Jun 27, 2018 | Weaver Gregory L | Director | Grant(A) | 45K | — | $0 |
| Jun 27, 2018 | Galli Stephen J | Director | Grant(A) | 45K | — | $0 |
| Jun 27, 2018 | Chen Shu-Chih | Director | Grant(A) | 45K | — | $0 |
| Jun 27, 2018 | Quay Steven C | President & CEO, Director | Grant(A) | 2.3M | — | $0 |
| Jun 27, 2018 | Steinhart Richard I | Director | Grant(A) | 45K | — | $0 |
| Jun 27, 2018 | Remmel H. Lawrence | Director | Grant(A) | 45K | — | $0 |
| Jun 27, 2018 | Guse Kyle | CFO, Gen Counsel and Secretary | Grant(A) | 700K | — | $0 |
| May 30, 2018 | Guse Kyle | CFO, Gen Counsel and Secretary | Buy(P) | 8 | $1,000.00 | $8K |
| May 30, 2018 | Quay Steven C | President & CEO, Director | Buy(P) | 8 | $1,000.00 | $8K |
| May 30, 2018 | Chen Shu-Chih | Director | Buy(P) | 8 | $1,000.00 | $8K |
| May 30, 2018 | Guse Kyle | CFO, Gen Counsel and Secretary | Buy(P) | 2K | $1,000.00as filed | — |
| May 30, 2018 | Quay Steven C | President & CEO, Director | Buy(P) | 2K | $1,000.00as filed | — |
| May 30, 2018 | Chen Shu-Chih | Director | Buy(P) | 2K | $1,000.00as filed | — |
| Nov 15, 2017 | Guse Kyle | CFO, Gen Counsel and Secretary | Buy(P) | 1K | $0.34 | $476 |
| Nov 15, 2017 | Guse Kyle | CFO, Gen Counsel and Secretary | Buy(P) | 9K | $0.34 | $3K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Atossa Therapeutics, Inc., SEC CIK 0001488039. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under ATOS and shows every filing by that issuer.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-10. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for ATOS