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
- 19.4M
- −1.97M (−9.2%) vs. Q2 2025
- Total value
- $16.8M
- −$918.4K (−5.2%) vs. Q2 2025
- New holders
- 9
- 12 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 | $16.8M |
| 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, 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 |
|---|---|---|---|---|---|
| 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 |
| EverSource Wealth Advisors, LLC | 2 | $2 | 0.00% | −219−99.1% | Reduced |
| True Wealth Design, LLC | 29 | $26 | 0.00% | −56−65.9% | Reduced |
| SRS Capital Advisors, Inc. | 42 | $36 | 0.00% | +42 | New |
| Clearstead Advisors, LLC | 70 | $61 | 0.00% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 82 | $71 | 0.00% | −8,280−99.0% | Reduced |
| Wells Fargo & Company | 83 | $72 | 0.00% | −459−84.7% | Reduced |
| NBC Securities, Inc. | 150 | $130 | 0.00% | +150 | New |
| Nisa Investment Advisors, LLC | 350 | $303 | 0.00% | −578−62.3% | Reduced |
| Jones Financial Companies LLLP | 700 | $601 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 702 | $609 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 745 | $1.00K | 0.00% | −7,050−90.4% | Reduced |
| BNP Paribas Arbitrage, SA | 1,490 | $1.29K | 0.00% | −1,519−50.5% | Reduced |
| SBI Securities Co., Ltd. | 1,566 | $1.36K | 0.00% | +1+0.1% | Added |
| TD Waterhouse Canada Inc. | 1,555 | $1.41K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 1,711 | $1.48K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,516 | $2.18K | 0.00% | −10,963−81.3% | Reduced |
| Huntington National Bank | 3,000 | $2.60K | 0.00% | +3,000 | New |
| 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 |
| FMR LLC | 7,365 | $6.38K | 0.00% | −9,672−56.8% | Reduced |
| Advisor Group Holdings, Inc. | 8,847 | $7.36K | 0.00% | 00.0% | Unchanged |
| Focus Financial Network, Inc. | 10,150 | $8.80K | 0.00% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 10,000 | $9.00K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 10,815 | $9.38K | 0.00% | −2,000−15.6% | Reduced |
| J. L. Bainbridge & Co., Inc. | 11,121 | $9.64K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 11,147 | $9.66K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 14,864 | $12.9K | 0.00% | −533−3.5% | Reduced |
| DnB Asset Management AS | 15,600 | $13.5K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 16,932 | $14.0K | 0.00% | −78,162−82.2% | Reduced |
| Jain Global LLC | 16,707 | $14.5K | 0.00% | −106,347−86.4% | Reduced |
| NorthRock Partners, LLC | 16,750 | $14.5K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 18,342 | $16.0K | 0.00% | −419−2.2% | Reduced |
| LVM Capital Management Ltd | 21,000 | $18.0K | 0.00% | 00.0% | Unchanged |
| PFG Investments, LLC | 21,250 | $18.4K | 0.00% | 00.0% | Unchanged |
| Sigma Planning Corp | 24,000 | $20.8K | 0.00% | +24,000 | New |
| XTX Topco Ltd | 24,849 | $21.5K | 0.00% | +12,312+98.2% | Added |
| LPL Financial LLC | 28,556 | $24.8K | 0.00% | +700+2.5% | Added |
| Regions Financial Corp | 30,000 | $26.0K | 0.00% | 00.0% | Unchanged |
| Gallagher Capital Advisors, LLC | 31,575 | $27.5K | 0.02% | +31,575 | New |
| JPMorgan Chase & Co | 38,215 | $33.1K | 0.00% | +35,474+1,294.2% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 44,106 | $38.2K | 0.01% | −44,106−50.0% | Reduced |
| Commonwealth Equity Services, LLC | 46,001 | $40.0K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 80,000 | $69.4K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 85,076 | $74.0K | 0.00% | +71,676+534.9% | Added |
| Acadian Asset Management LLC | 97,287 | $82.0K | 0.00% | +97,287 | New |
| Morgan Stanley | 112,348 | $97.4K | 0.00% | −48,564−30.2% | Reduced |
| Qube Research & Technologies Ltd | 138,643 | $120.2K | 0.00% | −277,731−66.7% | Reduced |
| Bank of America Corp | 155,169 | $134.5K | 0.00% | +55,568+55.8% | Added |
| Jane Street Group, LLC | 162,428 | $140.8K | 0.00% | −296,301−64.6% | Reduced |
| Graham Capital Management, L.P. | 165,446 | $143.4K | 0.01% | +165,446 | New |
| Susquehanna International Group, LLP | 219,602 | $190.4K | 0.00% | −54,313−19.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 248,614 | $215.5K | 0.00% | +49,946+25.1% | Added |
| Squarepoint Ops LLC | 253,343 | $219.6K | 0.00% | +72,235+39.9% | Added |
| UBS Group AG | 260,722 | $226.0K | 0.00% | −151,740−36.8% | Reduced |
| Citadel Advisors LLC | 263,369 | $228.3K | 0.00% | +176,451+203.0% | Added |
| Northern Trust Corp | 263,377 | $228.3K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 310,754 | $269.0K | 0.02% | +259,725+509.0% | Added |
| State Street Corp | 454,495 | $394.0K | 0.00% | −62,076−12.0% | Reduced |
| Geode Capital Management, LLC | 1,362,282 | $1.18M | 0.00% | +61,903+4.8% | Added |
| Renaissance Technologies LLC | 1,548,663 | $1.34M | 0.00% | −263,588−14.5% | Reduced |
| Millennium Management LLC | 1,668,648 | $1.45M | 0.00% | −378,887−18.5% | Reduced |
| BlackRock, Inc. | 1,997,627 | $1.73M | 0.00% | −150,383−7.0% | Reduced |
| Ameriprise Financial Inc | 2,951,505 | $2.56M | 0.00% | −21,700−0.7% | Reduced |
| Vanguard Group Inc | 6,078,844 | $5.27M | 0.00% | +245,717+4.2% | Added |
| 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 |