🕵️ Atossa Therapeutics, Inc. ($ATOS)
SEC insider & ownership activity, last 12 months · CIK 1488039 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. One red-flag 8-K in the window: Delisting notice (3.01), Feb 17, 2026.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
No current 5%+ beneficial-ownership positions on file.
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jun 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 8, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 7, 2026 | filing ↗ |
| Other events (8.01) | Apr 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 19, 2026 | filing ↗ |
| Agreement terminated (1.02) | Feb 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 19, 2026 | filing ↗ |
| Delisting notice (3.01) | Feb 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 11, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Jan 20, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Jan 20, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jan 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 20, 2026 | filing ↗ |
| Earnings (2.02) | Jan 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 9, 2026 | filing ↗ |
| Other events (8.01) | Jan 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 6, 2026 | filing ↗ |
| Other events (8.01) | Dec 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 4, 2025 | filing ↗ |
| Earnings (2.02) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 14, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 14, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 26, 2025 | filing ↗ |
| Other events (8.01) | Sep 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2025 | filing ↗ |