Atossa Therapeutics, Inc.
ATOS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001488039
No open-market purchases or sales by Atossa Therapeutics, Inc. insiders were filed in the last 90 days; 31 institutions reported holding it in 13F filings for Q2 2026, worth $2.60M in total; no superinvestor holds it.
13F holders, Q2 2025
Institutional positions in Atossa Therapeutics, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 84
- +1 vs. Q1 2025
- Shares held
- 21.3M
- −7.01M (−24.7%) vs. Q1 2025
- Total value
- $17.7M
- −$1.36M (−7.2%) vs. Q1 2025
- New holders
- 29
- 14 more added
- Sold out
- 28
- 23 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 31 | $2.60M |
| Q1 2026 | 33 | $6.52M |
| Q4 2025 | 67 | $13.0M |
| Q3 2025 | 67 | $16.8M |
| Q2 2025 | 84 | $17.7M |
| Q1 2025 | 83 | $19.1M |
| Q4 2024 | 86 | $28.3M |
| Q3 2024 | 86 | $41.6M |
| Q2 2024 | 77 | $31.2M |
| Q1 2024 | 67 | $34.6M |
| Q4 2023 | 49 | $14.1M |
| Q3 2023 | 54 | $11.9M |
| Q2 2023 | 52 | $20.2M |
| Q1 2023 | 45 | $11.9M |
| Q4 2022 | 51 | $9.49M |
| Q3 2022 | 59 | $15.8M |
| Q2 2022 | 73 | $25.4M |
| Q1 2022 | 83 | $45.4M |
| Q4 2021 | 92 | $63.3M |
| Q3 2021 | 93 | $102.1M |
| Q2 2021 | 90 | $225.8M |
| Q1 2021 | 54 | $22.8M |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Atossa Therapeutics, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −15,800−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −13,313−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −12,392−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −11,829−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −10,600−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −10,104−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −9,165−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −4,376−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −4,140−100.0% | Sold out |
| Sterling Capital Management LLC | 0 | $0 | 0.00% | −1,904−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −650−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |