Atossa Therapeutics (ATOS) Institutional Ownership $0.87 -0.07 (-7.58%) Closing price 05/21/2025 04:00 PM EasternExtended Trading$0.88 +0.01 (+1.41%) As of 05:16 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Atossa Therapeutics (NASDAQ:ATOS)CurrentInstitutional OwnershipPercentage12.74%Number ofInstitutional Buyers(last 12 months)21TotalInstitutional Inflows(last 12 months)$2.94MNumber ofInstitutional Sellers(last 12 months)8TotalInstitutional Outflows(last 12 months)$464.35K Get ATOS Insider Trade Alerts Want to know when executives and insiders are buying or selling Atossa Therapeutics stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data ATOS Institutional Buying and Selling by Quarter Atossa Therapeutics Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/16/2025 Goldman Sachs Group Inc.187,927$126K0.0%-45.5%0.145% 5/12/2025 Nuveen LLC170,733$115K0.0%N/A0.132% 5/9/2025 Charles Schwab Investment Management Inc.422,582$284K0.0%+40.1%0.327% 2/17/2025 Two Sigma Advisers LP42,400$40K0.0%+214.1%0.034% 2/17/2025 Millennium Management LLC29,149$28K0.0%N/A0.023% 2/17/2025 Bank of America Corp DE111,475$105K0.0%+51.3%0.089% 2/14/2025 Northern Trust Corp1,025,724$968K0.0%+7.5%0.815% 2/13/2025 XTX Topco Ltd79,176$75K0.0%+59.6%0.063% 2/13/2025 Barclays PLC191,954$181K0.0%+14.5%0.153% 2/13/2025 Renaissance Technologies LLC1,557,632$1.47M0.0%+18.9%1.238% Get the Latest News and Ratings for ATOS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Atossa Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 2/13/2025 Wells Fargo & Company MN71,720$68K0.0%+30.7%0.057% 2/12/2025 JPMorgan Chase & Co.361,296$341K0.0%+141.4%0.287% 2/11/2025 LPL Financial LLC29,451$28K0.0%-35.1%0.023% 2/11/2025 Virtu Financial LLC208,196$197K0.0%+311.1%0.165% 2/11/2025 Intech Investment Management LLC62,844$59K0.0%+224.0%0.050% 2/7/2025 Gallagher Capital Advisors LLC26,075$25K0.0%N/A0.021% 2/6/2025 Charles Schwab Investment Management Inc.301,648$285K0.0%-13.2%0.240% 2/4/2025 Bank of New York Mellon Corp289,727$274K0.0%-4.6%0.230% 1/17/2025 SG Americas Securities LLC103,865$98K0.0%+148.2%0.083% 12/26/2024 JPMorgan Chase & Co.149,642$227K0.0%+177.1%0.119% 11/20/2024 Virtu Financial LLC50,647$77K0.0%-32.6%0.040% 11/19/2024 Barclays PLC167,718$255K0.0%+280.9%0.133% 11/16/2024 Geode Capital Management LLC2,814,446$4.28M0.0%+1.6%2.238% 11/15/2024 Barclays PLC167,718$255K0.0%+280.9%0.133% 11/15/2024 XTX Topco Ltd49,616$75K0.0%+101.2%0.039% 11/15/2024 Jane Street Group LLC136,935$208K0.0%-47.3%0.109% 11/15/2024 State Street Corp1,732,221$2.63M0.0%+4.2%1.377% 11/14/2024 MetLife Investment Management LLC23,978$36K0.0%-28.2%0.019% 11/13/2024 The Manufacturers Life Insurance Company49,113$75K0.0%N/A0.039% 11/12/2024 Charles Schwab Investment Management Inc.347,610$528K0.0%-6.0%0.276% 11/9/2024 Intech Investment Management LLC19,395$29K0.0%N/A0.015% 11/8/2024 Connor Clark & Lunn Investment Management Ltd.199,754$304K0.0%-4.5%0.159% 10/3/2024 SG Americas Securities LLC41,849$64K0.0%+254.3%0.033% 8/12/2024 XTX Topco Ltd24,665$29K0.0%N/A0.020% 8/9/2024 Renaissance Technologies LLC1,550,910$1.85M0.0%+11.9%1.233% 8/1/2024 Rhumbline Advisers135,118$161K0.0%N/A0.107% 7/26/2024 Bank of New York Mellon Corp411,667$490K0.0%+3,160.5%0.327% 5/24/2024Cetera Advisors LLC39,898$72K0.0%N/A0.032% 5/20/2024 Virtu Financial LLC83,941$151K0.0%N/A0.067% 5/10/2024 Vanguard Group Inc.5,753,993$10.36M0.0%+1.4%4.592% Is President Trump Lying To You With This? (Ad)President Trump’s economic transition isn’t without hardship. But what if there were a smart, tax-free way to protect your 401(k), IRA, or pension from market chaos and currency collapse? The 2025 Wealth Protection Guide reveals a legal IRS strategy that may let you keep more of your retirement—regardless of what happens next. Trump’s warning was real. So is this opportunity.Protect your IRA—Trump’s warning was real4/22/2024 PFG Investments LLC23,650$43K0.0%N/A0.019% 11/13/2023 Connor Clark & Lunn Investment Management Ltd.133,591$98K0.0%N/A0.106% 7/27/2023 Virtu Financial LLC86,813$109K0.0%N/A0.069% 7/7/2023 LVM Capital Management Ltd. MI21,000$26K0.0%N/A0.017% 2/1/2023 Bank of Montreal Can175,699$105K0.0%N/A0.139% 11/14/2022Ergoteles LLC316,253$264K0.0%-38.5%0.250% 8/15/2022 Laurion Capital Management LP2,225,800$2.43M0.0%N/A1.758% 5/11/2022 GSA Capital Partners LLP66,223$83K0.0%N/A0.052% 4/18/2022 Spire Wealth Management94,000$118K0.0%+67.9%0.074% 2/14/2022ETF Managers Group LLC38,452$64K0.0%N/A0.030% 2/11/2022QCM Cayman Ltd.22,301$36K0.2%N/A0.018% 2/10/2022 Qube Research & Technologies Ltd287,989$461K0.0%N/A0.227% 2/9/2022 Principal Financial Group Inc.26,254$42K0.0%+144.2%0.021% 2/9/2022 Alps Advisors Inc.146,542$234K0.0%N/A0.116% 2/8/2022 ProShare Advisors LLC25,560$41K0.0%+70.5%0.020% 2/8/2022 Northern Trust Corp1,049,488$1.68M0.0%-3.1%0.829% 2/7/2022 SG Americas Securities LLC36,270$58K0.0%-55.9%0.029% 2/1/2022 Qube Research & Technologies Ltd287,989$461K0.0%N/A0.227% 11/16/2021 Metropolitan Life Insurance Co NY15,468$50K0.0%-54.1%0.012% 11/15/2021 Franklin Resources Inc.14,300$47K0.0%N/A0.011% 11/15/2021 Martingale Asset Management L P28,381$93K0.0%+28.5%0.022% 11/12/2021 Geode Capital Management LLC2,109,160$6.88M0.0%+7.1%1.666% 11/12/2021 Bank of Nova Scotia152,115$495K0.0%-56.4%0.120% 11/12/2021First Republic Investment Management Inc.11,000$36K0.0%N/A0.009% 11/10/2021 Goldman Sachs Group Inc.207,569$676K0.0%+315.1%0.164% 11/9/2021 Barclays PLC47,810$156K0.0%+107.2%0.038% 11/9/2021BlackRock Inc.9,550,629$31.14M0.0%+6.7%7.543% 11/8/2021 State Board of Administration of Florida Retirement System68,685$224K0.0%+407.8%0.054% 11/4/2021 Deutsche Bank AG127,749$416K0.0%+83.9%0.101% 11/2/2021 New York State Common Retirement Fund55,321$180K0.0%-44.8%0.044% 11/1/2021 SG Americas Securities LLC82,160$268K0.0%N/A0.065% 10/29/2021 Commonwealth Equity Services LLC28,442$92K0.0%-14.8%0.022% 10/27/2021 Newbridge Financial Services Group Inc.32,000$104K0.1%N/A0.025% 10/22/2021 Spire Wealth Management61,000$199K0.0%+27.1%0.048% 10/22/2021Strs Ohio14,200$46K0.0%-47.6%0.011% 10/19/2021 Kestra Advisory Services LLC10,500$34K0.0%N/A0.008% 10/14/2021 Private Advisor Group LLC11,205$37K0.0%N/A0.009% 9/17/2021 Virtu Financial LLC18,624$118K0.0%-93.2%0.015% 9/3/2021Parametric Portfolio Associates LLC52,128$329K0.0%N/A0.041% 8/24/2021 Mariner LLC114,860$726K0.0%N/A0.091% 8/17/2021 Invesco Ltd.1,851,353$11.70M0.0%N/A1.464% 8/17/2021 Metropolitan Life Insurance Co NY33,687$213K0.0%N/A0.027% 8/17/2021 Millennium Management LLC1,666,911$10.54M0.0%N/A1.318% 8/17/2021 MetLife Investment Management LLC44,000$278K0.0%N/A0.035% 8/17/2021 Price T Rowe Associates Inc. MD24,844$157K0.0%N/A0.020% 8/16/2021 Squarepoint Ops LLC188,259$1.19M0.0%N/A0.149% 8/16/2021 Amalgamated Bank16,827$106K0.0%N/A0.013% 8/16/2021 Cubist Systematic Strategies LLC5,257$33K0.0%N/A0.004% 8/16/2021 California State Teachers Retirement System161,269$1.02M0.0%N/A0.128% 8/16/2021Enlightenment Research LLC73,100$462K0.6%N/A0.058% July 2025 Rule Change to Impact Retirement Investors (Ad)There's a massive change from a new rule going into effect this July. And it's one the Big Banks are already using to their advantage… It allows them to treat this new asset like actual cash.Yes, Send Me My FREE Retirement Guide8/16/2021 Charles Schwab Investment Management Inc.293,958$1.86M0.0%+976.5%0.232% 8/16/2021 State Street Corp2,032,668$12.85M0.0%N/A1.608% 8/16/2021Nuveen Asset Management LLC1,097,131$6.93M0.0%N/A0.868% 8/16/2021 Goldman Sachs Group Inc.50,007$316K0.0%-21.6%0.040% 8/13/2021 Northern Trust Corp1,123,852$7.10M0.0%+671.6%0.889% 8/13/2021 Geode Capital Management LLC1,968,745$12.44M0.0%+303.3%1.557% 8/13/2021 Vanguard Group Inc.5,762,626$36.42M0.0%+81.2%4.558% 8/13/2021 ProShare Advisors LLC30,351$192K0.0%N/A0.024% 8/12/2021 State of Wisconsin Investment Board151,300$956K0.0%N/A0.120% 8/12/2021 Legal & General Group Plc11,736$74K0.0%N/A0.009% (Data available from 1/1/2016 forward) ATOS Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of ATOS shares? During the previous two years, 29 institutional investors and hedge funds held shares of Atossa Therapeutics. The most heavily invested institutionals were Vanguard Group Inc. ($10.36M), Geode Capital Management LLC ($4.28M), State Street Corp ($2.63M), Renaissance Technologies LLC ($1.47M), Northern Trust Corp ($968K), JPMorgan Chase & Co. ($341K), and Connor Clark & Lunn Investment Management Ltd. ($304K).Learn more on ATOS's institutional investors. What percentage of Atossa Therapeutics stock is owned by institutional investors? 12.74% of Atossa Therapeutics stock is owned by institutional investors. Learn more on ATOS's institutional investor holdings. Which institutional investors have been buying Atossa Therapeutics stock? Of the 25 institutional investors that purchased Atossa Therapeutics stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Renaissance Technologies LLC ($412.10K), Bank of New York Mellon Corp ($399.04K), Virtu Financial LLC ($328.30K), JPMorgan Chase & Co. ($307.30K), Barclays PLC ($271.60K), Nuveen LLC ($170.73K), and Rhumbline Advisers ($135.12K). How much institutional buying is happening at Atossa Therapeutics? Institutional investors have bought a total of 3,048,977 shares in the last 24 months. This purchase volume represents approximately $3.51M in transactions. Which Atossa Therapeutics major shareholders have been selling company stock? The following institutional investors have sold Atossa Therapeutics stock in the last 24 months: Goldman Sachs Group Inc. ($156.93K), Jane Street Group LLC ($123.15K), Charles Schwab Investment Management Inc. ($68.34K), Virtu Financial LLC ($24.48K), LPL Financial LLC ($15.96K), Bank of New York Mellon Corp ($13.92K), and Connor Clark & Lunn Investment Management Ltd. ($9.49K). How much institutional selling is happening at Atossa Therapeutics? Institutional investors have sold a total of 421,687 shares in the last 24 months. This volume of shares sold represents approximately $464.35K in transactions. Related Companies SIGA Major Shareholders ZVRA Major Shareholders SAGE Major Shareholders AMLX Major Shareholders PRTA Major Shareholders PRTC Major Shareholders ABVX Major Shareholders TRML Major Shareholders PGEN Major Shareholders RGNX Major Shareholders This page (NASDAQ:ATOS) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. 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