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, Q1 2025
Institutional positions in Atossa Therapeutics, Inc. as of Mar 31, 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
- 83
- −2 vs. Q4 2024
- Shares held
- 28.4M
- −1.40M (−4.7%) vs. Q4 2024
- Total value
- $19.1M
- −$9.01M (−32.1%) vs. Q4 2024
- New holders
- 10
- 18 more added
- Sold out
- 12
- 29 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Atossa Therapeutics, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,625,365 | $6.48M | 0.00% | −134,184−1.4% | Reduced |
| Vanguard Group Inc | 6,585,912 | $4.43M | 0.00% | −33,057−0.5% | Reduced |
| Geode Capital Management, LLC | 2,845,792 | $1.92M | 0.00% | +31,615+1.1% | Added |
| Renaissance Technologies LLC | 1,855,101 | $1.25M | 0.00% | +297,469+19.1% | Added |
| State Street Corp | 1,727,090 | $1.16M | 0.00% | −28,279−1.6% | Reduced |
| Northern Trust Corp | 973,998 | $655.4K | 0.00% | −51,726−5.0% | Reduced |
| Squarepoint Ops LLC | 478,999 | $322.3K | 0.00% | +478,999 | New |
| UBS Group AG | 455,386 | $306.5K | 0.00% | −669,317−59.5% | Reduced |
| Susquehanna International Group, LLP | 440,335 | $296.3K | 0.00% | +214,159+94.7% | Added |
| Charles Schwab Investment Management Inc | 422,582 | $284.4K | 0.00% | +120,934+40.1% | Added |
| Bank of New York Mellon Corp | 289,727 | $195.0K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 284,187 | $191.2K | 0.00% | −168,009−37.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 189,319 | $127.4K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 187,927 | $126.5K | 0.00% | −156,931−45.5% | Reduced |
| Nuveen, LLC | 170,733 | $114.9K | 0.00% | +170,733 | New |
| Rhumbline Advisers | 129,851 | $87.4K | 0.00% | +7,633+6.2% | Added |
| Barclays PLC | 128,578 | $86.5K | 0.00% | −63,376−33.0% | Reduced |
| JPMorgan Chase & Co | 118,929 | $80.0K | 0.00% | −242,367−67.1% | Reduced |
| Qube Research & Technologies Ltd | 91,034 | $61.3K | 0.00% | −98,545−52.0% | Reduced |
| Citigroup Inc | 88,079 | $59.3K | 0.00% | −11,945−11.9% | Reduced |
| Intech Investment Management LLC | 86,138 | $58.0K | 0.00% | +23,294+37.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 75,716 | $50.9K | 0.00% | +3,198+4.4% | Added |
| Wells Fargo & Company | 73,539 | $49.5K | 0.00% | +1,819+2.5% | Added |
| Bank of America Corp | 63,972 | $43.0K | 0.00% | −47,503−42.6% | Reduced |
| Corebridge Financial, Inc. | 61,966 | $41.7K | 0.00% | −918−1.5% | Reduced |
| Invesco Ltd. | 58,669 | $39.5K | 0.00% | −1,675−2.8% | Reduced |
| Two Sigma Advisers, LP | 56,900 | $38.3K | 0.00% | +14,500+34.2% | Added |
| Group One Trading, L.P. | 56,207 | $37.8K | 0.00% | +42,777+318.5% | Added |
| Price T Rowe Associates Inc | 51,198 | $35.0K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 46,001 | $31.0K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 41,846 | $28.2K | 0.00% | −2,386−5.4% | Reduced |
| SG Americas Securities, LLC | 37,248 | $25.0K | 0.00% | −66,617−64.1% | Reduced |
| Regions Financial Corp | 30,000 | $20.2K | 0.00% | 00.0% | Unchanged |
| CIBC World Markets Corp | 28,066 | $18.9K | 0.00% | +16,229+137.1% | Added |
| LPL Financial LLC | 28,056 | $18.9K | 0.00% | −1,395−4.7% | Reduced |
| ProShare Advisors LLC | 27,381 | $18.4K | 0.00% | −8,241−23.1% | Reduced |
| Gallagher Capital Advisors, LLC | 26,075 | $17.5K | 0.01% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 25,430 | $17.1K | 0.00% | 00.0% | Unchanged |
| LVM Capital Management Ltd | 21,000 | $14.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 19,020 | $12.8K | 0.00% | −27,311−58.9% | Reduced |
| Royal Bank of Canada | 17,539 | $12.0K | 0.00% | −371−2.1% | Reduced |
| Alliancebernstein L.P. | 17,380 | $11.7K | 0.00% | 00.0% | Unchanged |
| NorthRock Partners, LLC | 16,750 | $11.3K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 16,240 | $10.9K | 0.00% | +16,240 | New |
| New York State Common Retirement Fund | 15,800 | $10.6K | 0.00% | 00.0% | Unchanged |
| DnB Asset Management AS | 15,600 | $10.5K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 15,162 | $10.2K | 0.00% | −393−2.5% | Reduced |
| HSBC Holdings PLC | 14,782 | $9.98K | 0.00% | −96−0.6% | Reduced |
| Neuberger Berman Group LLC | 14,700 | $9.89K | 0.00% | +2,414+19.6% | Added |
| PFG Investments, LLC | 13,750 | $9.25K | 0.00% | −1,150−7.7% | Reduced |
| Tower Research Capital LLC (TRC) | 13,697 | $9.22K | 0.00% | +253+1.9% | Added |
| Farringdon Capital, Ltd. | 13,313 | $8.96K | 0.00% | +13,313 | New |
| Raymond James Financial Inc | 12,815 | $8.62K | 0.00% | −6,000−31.9% | Reduced |
| Ameritas Investment Partners, Inc. | 12,392 | $8.34K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 11,716 | $8.16K | 0.00% | +11,716 | New |
| Legal & General Group Plc | 11,829 | $7.96K | 0.00% | 00.0% | Unchanged |
| J. L. Bainbridge & Co., Inc. | 11,121 | $7.48K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 10,600 | $7.13K | 0.00% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 10,000 | $7.00K | 0.00% | 00.0% | Unchanged |
| Focus Financial Network, Inc. | 10,150 | $6.83K | 0.00% | +10,150 | New |
| Mariner, LLC | 10,104 | $6.80K | 0.00% | +10,104 | New |
| Evanson Asset Management, LLC | 10,000 | $6.73K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 9,291 | $6.25K | 0.00% | −2,002−17.7% | Reduced |
| California State Teachers Retirement System | 9,165 | $6.17K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 8,500 | $5.70K | 0.00% | −50−0.6% | Reduced |
| BNP Paribas Arbitrage, SA | 8,416 | $5.66K | 0.00% | −7,567−47.3% | Reduced |
| GWM Advisors LLC | 5,000 | $3.37K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 4,376 | $3.00K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,140 | $2.00K | 0.00% | +3,531+579.8% | Added |
| Sterling Capital Management LLC | 1,904 | $1.28K | 0.00% | −1,675−46.8% | Reduced |
| Harbour Investments, Inc. | 1,711 | $1.15K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1,575 | $1.06K | 0.00% | +10+0.6% | Added |
| TD Waterhouse Canada Inc. | 1,555 | $1.01K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,320 | $1.00K | 0.00% | +1,293+4,788.9% | Added |
| Nisa Investment Advisors, LLC | 1,050 | $707 | 0.00% | +938+837.5% | Added |
| Allworth Financial LP | 702 | $515 | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 700 | $487 | 0.00% | +700 | New |
| Rise Advisors, LLC | 650 | $437 | 0.00% | +650 | New |
| EverSource Wealth Advisors, LLC | 105 | $71 | 0.00% | +73+228.1% | Added |
| Clearstead Advisors, LLC | 70 | $48 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 69 | $47 | 0.00% | +69 | New |
| Larson Financial Group LLC | 20 | $13 | 0.00% | −80−80.0% | Reduced |
| Hantz Financial Services, Inc. | 82 | $0 | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −427,820−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −208,196−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −126,704−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −89,837−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −79,176−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −34,227−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −31,501−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −29,149−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −22,325−100.0% | Sold out |
| Koss-Olinger Consulting, LLC | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| St. Johns Investment Management Company, LLC | 0 | $0 | 0.00% | −1,550−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −1,020−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |