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, Q3 2025
Institutional positions in Atossa Therapeutics, Inc. as of Sep 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
- 67
- −17 vs. Q2 2025
- Shares held
- 19.5M
- −1.91M (−8.9%) vs. Q2 2025
- Total value
- $16.9M
- −$865.3K (−4.9%) vs. Q2 2025
- New holders
- 9
- 13 more added
- Sold out
- 26
- 26 more reduced
Compare with Q2 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 | $16.9M |
| Q2 2025 | 84 | $17.7M |
| Q1 2025 | 83 | $19.1M |
| Q4 2024 | 86 | $28.3M |
| Q3 2024 | 86 | $41.8M |
| Q2 2024 | 77 | $31.2M |
| Q1 2024 | 67 | $37.4M |
| Q4 2023 | 49 | $14.2M |
| 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 | $64.2M |
| Q3 2021 | 93 | $102.1M |
| Q2 2021 | 90 | $225.8M |
| Q1 2021 | 54 | $22.8M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Atossa Therapeutics, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 6,078,844 | $5.27M | 0.00% | +245,717+4.2% | Added |
| Ameriprise Financial Inc | 2,951,505 | $2.56M | 0.00% | −21,700−0.7% | Reduced |
| BlackRock, Inc. | 1,997,627 | $1.73M | 0.00% | −150,383−7.0% | Reduced |
| Millennium Management LLC | 1,668,648 | $1.45M | 0.00% | −378,887−18.5% | Reduced |
| Renaissance Technologies LLC | 1,548,663 | $1.34M | 0.00% | −263,588−14.5% | Reduced |
| Geode Capital Management, LLC | 1,362,282 | $1.18M | 0.00% | +61,903+4.8% | Added |
| State Street Corp | 454,495 | $394.0K | 0.00% | −62,076−12.0% | Reduced |
| Gsa Capital Partners LLP | 310,754 | $269.0K | 0.02% | +259,725+509.0% | Added |
| Northern Trust Corp | 263,377 | $228.3K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 263,369 | $228.3K | 0.00% | +176,451+203.0% | Added |
| UBS Group AG | 260,722 | $226.0K | 0.00% | −151,740−36.8% | Reduced |
| Squarepoint Ops LLC | 253,343 | $219.6K | 0.00% | +72,235+39.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 248,614 | $215.5K | 0.00% | +49,946+25.1% | Added |
| Susquehanna International Group, LLP | 219,602 | $190.4K | 0.00% | −54,313−19.8% | Reduced |
| Graham Capital Management, L.P. | 165,446 | $143.4K | 0.01% | +165,446 | New |
| Jane Street Group, LLC | 162,428 | $140.8K | 0.00% | −296,301−64.6% | Reduced |
| Bank of America Corp | 155,169 | $134.5K | 0.00% | +55,568+55.8% | Added |
| Qube Research & Technologies Ltd | 138,643 | $120.2K | 0.00% | −277,731−66.7% | Reduced |
| Morgan Stanley | 112,348 | $97.4K | 0.00% | −48,564−30.2% | Reduced |
| Acadian Asset Management LLC | 97,287 | $82.0K | 0.00% | +97,287 | New |
| Marshall Wace, LLP | 85,076 | $74.0K | 0.00% | +71,676+534.9% | Added |
| Charles Schwab Investment Management Inc | 80,000 | $69.4K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 76,430 | $66.3K | 0.00% | +73,689+2,688.4% | Added |
| Regions Financial Corp | 60,000 | $52.0K | 0.00% | +30,000+100.0% | Added |
| Commonwealth Equity Services, LLC | 46,001 | $40.0K | 0.00% | 00.0% | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. | 44,106 | $38.2K | 0.01% | −44,106−50.0% | Reduced |
| Gallagher Capital Advisors, LLC | 31,575 | $27.5K | 0.02% | +31,575 | New |
| LPL Financial LLC | 28,556 | $24.8K | 0.00% | +700+2.5% | Added |
| XTX Topco Ltd | 24,849 | $21.5K | 0.00% | +12,312+98.2% | Added |
| Sigma Planning Corp | 24,000 | $20.8K | 0.00% | +24,000 | New |
| PFG Investments, LLC | 21,250 | $18.4K | 0.00% | 00.0% | Unchanged |
| LVM Capital Management Ltd | 21,000 | $18.0K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 18,342 | $16.0K | 0.00% | −419−2.2% | Reduced |
| NorthRock Partners, LLC | 16,750 | $14.5K | 0.00% | 00.0% | Unchanged |
| Jain Global LLC | 16,707 | $14.5K | 0.00% | −106,347−86.4% | Reduced |
| HRT Financial LP | 16,932 | $14.0K | 0.00% | −78,162−82.2% | Reduced |
| DnB Asset Management AS | 15,600 | $13.5K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 14,864 | $12.9K | 0.00% | −533−3.5% | Reduced |
| Bank of New York Mellon Corp | 11,147 | $9.66K | 0.00% | 00.0% | Unchanged |
| J. L. Bainbridge & Co., Inc. | 11,121 | $9.64K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 10,815 | $9.38K | 0.00% | −2,000−15.6% | Reduced |
| Janney Montgomery Scott LLC | 10,000 | $9.00K | 0.00% | 00.0% | Unchanged |
| Focus Financial Network, Inc. | 10,150 | $8.80K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 8,847 | $7.36K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 7,365 | $6.38K | 0.00% | −9,672−56.8% | Reduced |
| GWM Advisors LLC | 5,000 | $4.33K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 5,000 | $4.33K | 0.00% | +5,000 | New |
| Huntington National Bank | 3,000 | $2.60K | 0.00% | +3,000 | New |
| Tower Research Capital LLC (TRC) | 2,516 | $2.18K | 0.00% | −10,963−81.3% | Reduced |
| Harbour Investments, Inc. | 1,711 | $1.48K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 1,555 | $1.41K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1,566 | $1.36K | 0.00% | +1+0.1% | Added |
| BNP Paribas Arbitrage, SA | 1,490 | $1.29K | 0.00% | −1,519−50.5% | Reduced |
| Royal Bank of Canada | 745 | $1.00K | 0.00% | −14,845−95.2% | Reduced |
| Allworth Financial LP | 702 | $609 | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 700 | $601 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 350 | $303 | 0.00% | −578−62.3% | Reduced |
| NBC Securities, Inc. | 150 | $130 | 0.00% | +150 | New |
| Wells Fargo & Company | 83 | $72 | 0.00% | −459−84.7% | Reduced |
| Point72 (DIFC) Ltd | 82 | $71 | 0.00% | −8,280−99.0% | Reduced |
| Clearstead Advisors, LLC | 70 | $61 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 42 | $36 | 0.00% | +42 | New |
| True Wealth Design, LLC | 29 | $26 | 0.00% | −56−65.9% | Reduced |
| EverSource Wealth Advisors, LLC | 2 | $2 | 0.00% | −219−99.1% | Reduced |
| CWM, LLC | 225 | $0 | 0.00% | −5,787−96.3% | Reduced |
| Hantz Financial Services, Inc. | 82 | $0 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 322 | $0 | 0.00% | +322 | New |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −386,334−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −334,953−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −144,853−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −77,933−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −59,300−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −48,329−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −36,768−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −34,200−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −31,235−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −27,168−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −25,351−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −22,220−100.0% | Sold out |
| Ground Swell Capital, LLC | 0 | $0 | 0.00% | −19,990−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −18,759−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −16,356−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −14,700−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −13,516−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −11,112−100.0% | Sold out |
| Guerra Advisors Inc | 0 | $0 | 0.00% | −10,250−100.0% | Sold out |
| Evanson Asset Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Baader Bank INC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −627−100.0% | Sold out |
| Mount Yale Investment Advisors, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −193−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |