ATOS — ATOSSA THERAPEUTICS, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Healthcare
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-05-12 | Cigler Tessa Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-05-12 | Galli Stephen J Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-05-12 | Finn Jonathan Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-05-12 | Remmel H. Lawrence Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-05-12 | Chen Shu-Chih Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-05-12 | Steinhart Richard I Director | Grant or award | 10.0K | 0.00 | 0 |
| 2026-03-27 | QUAY STEVEN C President & CEO | Grant or award | 65.0K | 0.00 | 0 |
| 2026-03-26 | Daniel Mark James Chief Financial Officer | Grant or award | 63.0K | 0.00 | 0 |
| 2026-01-20 | QUAY STEVEN C President & CEO | Grant or award | 331.7K | 0.00 | 0 |
| 2026-01-20 | QUAY STEVEN C President & CEO | Grant or award | 325.2K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | 349.1K |
| AMERIPRISE FINANCIAL INC | 1.3M | 255.1K |
| BlackRock, Inc. | 700.5K | 133.2K |
| RENAISSANCE TECHNOLOGIES LLC | 573.4K | 109.0K |
| GEODE CAPITAL MANAGEMENT, LLC | 510.7K | 97.1K |
| UBS Group AG | 484.1K | 92.0K |
| MILLENNIUM MANAGEMENT LLC | 351.0K | 66.7K |
| VANGUARD FIDUCIARY TRUST CO | 274.8K | 52.2K |
| STATE STREET CORP | 209.1K | 39.8K |
| NORTHERN TRUST CORP | 101.1K | 19.2K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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