Go Pro
→ BofA: Digital Dollar Coming 2025-2030 (From Decentralized Masters) (Ad)tc pixel Free ALT Stock Alerts

Altimmune (ALT) Institutional Ownership

Altimmune logo
$2.77 -0.07 (-2.46%)
Closing price 04:00 PM Eastern
Extended Trading
$2.81 +0.04 (+1.59%)
As of 05:03 PM 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 Massive. Learn more.
Compare

Institutional Ownership Changes (13F Filings) for Altimmune (NASDAQ:ALT)

Current
Institutional Ownership
Percentage
78.05%
Number of
Institutional Buyers
(last 12 months)
98
Total
Institutional Inflows
(last 12 months)
$56.69M
Number of
Institutional Sellers
(last 12 months)
32
Total
Institutional Outflows
(last 12 months)
$17.84M
Get ALT Insider Trade Alerts

Want to know when executives and insiders are buying or selling Altimmune stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

ALT Institutional Buying and Selling by Quarter

Altimmune Major Shareholders & Ownership History

Export
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/9/2026 Hennion & Walsh Asset Management Inc.518,198$1.58M0.0%+156.5%0.266%
6/16/2026 PVG Asset Management Corp66,120$204K0.1%N/A0.034%
5/19/2026Bank of America Corp DE570,203$1.76M0.0%+48.6%0.438%
5/18/2026EverSource Wealth Advisors LLC35,650$110K0.0%+101.6%0.027%
5/16/2026The Manufacturers Life Insurance Company 34,763$107K0.0%+26.0%0.027%
5/16/2026Quantinno Capital Management LP10,636$33K0.0%N/A0.008%
5/13/2026Cetera Investment Advisers35,453$109K0.0%+19.4%0.027%
5/7/2026Dimensional Fund Advisors LP1,045,926$3.22M0.0%+268.7%0.804%
5/5/2026Bank of New York Mellon Corp413,503$1.27M0.0%+16.7%0.318%
5/1/2026 Beirne Wealth Consulting Services LLC411,858$1.27M0.4%+9.4%0.317%
4/30/2026Hsbc Holdings PLC154,365$476K0.0%+16.7%0.119%
4/27/2026PFG Investments LLC13,500$42K0.0%N/A0.010%
4/27/2026Leonteq Securities AG65,000$200K0.0%+6,400.0%0.050%
4/23/2026North Star Investment Management Corp.17,000$52K0.0%+112.5%0.013%
4/22/2026Janney Montgomery Scott LLC172,610$532K0.0%+68.2%0.133%
4/21/2026Wealth Effects LLC131,950$406K0.1%+18.1%0.101%
4/16/2026SG Americas Securities LLC55,625$171K0.0%+426.0%0.043%
3/20/2026Hsbc Holdings PLC132,221$474K0.0%+80.8%0.102%
3/17/2026Rockefeller Capital Management L.P.43,167$156K0.0%+79,838.9%0.033%
2/23/2026Virtu Financial LLC58,477$211K0.0%+21.7%0.052%
2/19/2026Invesco Ltd.214,824$776K0.0%+32.7%0.190%
2/18/2026Vines Capital Management LLC17,884$65K0.1%N/A0.016%
2/18/2026Virtus Investment Advisers LLC50,482$182K0.0%+217.2%0.045%
2/18/2026Wellington Management Group LLP257,271$929K0.0%-2.8%0.228%
2/18/2026Susquehanna Portfolio Strategies LLC135,170$488K0.0%-27.0%0.120%
2/18/2026Quadrature Capital Ltd10,101$36K0.0%N/A0.009%
2/18/2026Millennium Management LLC207,383$749K0.0%-43.6%0.184%
2/18/2026Man Group plc18,936$68K0.0%N/A0.017%
2/18/2026Engineers Gate Manager LP87,264$315K0.0%+112.6%0.077%
2/18/2026Balyasny Asset Management L.P.60,109$217K0.0%N/A0.053%
2/17/2026Schonfeld Strategic Advisors LLC13,021$47K0.0%N/A0.012%
2/17/2026AQR Capital Management LLC21,147$76K0.0%N/A0.019%
2/17/2026Cetera Investment Advisers29,687$107K0.0%+46.9%0.026%
2/17/2026Northeast Financial Group Inc.13,393$48K0.0%N/A0.012%
2/17/2026EFG International AG16,500$60K0.0%N/A0.015%
2/17/2026Kovack Advisors Inc.35,215$127K0.0%N/A0.031%
2/17/2026Jump Financial LLC242,017$874K0.0%+109.0%0.214%
2/17/2026Price T Rowe Associates Inc. MD49,879$181K0.0%+20.2%0.044%
2/17/2026Soviero Asset Management LP400,000$1.44M0.7%N/A0.355%
2/17/2026Advisory Services Network LLC15,160$55K0.0%+69.2%0.013%
Your book is inside (Ad)

The "Sucker's Bet" Most New Options Traders Fall For Most people who try options lose money the same way. They don't know the rules. They don't know what to avoid. And they hand their account to Wall Street on a silver platter. Normally $29.97. Free today.tc pixel

Download your copy now.
2/17/2026&PARTNERS15,035$54K0.0%N/A0.013%
2/17/2026ExodusPoint Capital Management LP11,921$43K0.0%-93.3%0.011%
2/17/2026Royal Bank of Canada27,414$99K0.0%-58.9%0.024%
2/17/2026Blair William & Co. IL56,434$204K0.0%N/A0.050%
2/16/2026Squarepoint Ops LLC34,949$126K0.0%-94.0%0.031%
2/16/2026Arax Advisory Partners8,165$29K0.0%+99.7%0.007%
2/16/2026Barclays PLC400,595$1.45M0.0%+17.7%0.355%
2/13/2026CreativeOne Wealth LLC10,500$38K0.0%N/A0.009%
2/13/2026Marshall Wace LLP922,777$3.33M0.0%N/A0.818%
2/13/2026Stifel Financial Corp123,416$446K0.0%+104.3%0.109%
2/13/2026Schroder Investment Management Group469,013$1.69M0.0%N/A0.416%
2/13/2026Rafferty Asset Management LLC195,766$707K0.0%+25.3%0.174%
2/13/2026Charles Schwab Investment Management Inc.283,669$1.02M0.0%+38.7%0.251%
2/13/2026State Street Corp5,119,703$18.48M0.0%+42.2%4.538%
2/13/2026Vontobel Holding Ltd.15,000$54K0.0%N/A0.013%
2/13/2026Martingale Asset Management L P14,355$52K0.0%N/A0.013%
2/13/2026Caitong International Asset Management Co. Ltd12,322$44K0.1%N/A0.011%
2/13/2026Wells Fargo & Company MN141,282$510K0.0%+52.1%0.125%
2/12/2026DRW Securities LLC22,469$81K0.0%N/A0.020%
2/12/2026MetLife Investment Management LLC38,193$138K0.0%-14.2%0.034%
2/12/2026Commonwealth Equity Services LLC181,483$655K0.0%+4.2%0.161%
2/12/2026Dimensional Fund Advisors LP283,703$1.02M0.0%-4.7%0.251%
2/12/2026Steward Partners Investment Advisory LLC245,393$886K0.0%+11.9%0.217%
2/12/2026Alps Advisors Inc.85,677$309K0.0%N/A0.076%
2/12/2026Kovack Advisors Inc.35,215$127K0.0%N/A0.031%
2/12/2026Nuveen LLC1,244,211$4.49M0.0%+514.9%1.103%
2/11/2026Janney Montgomery Scott LLC102,610$370K0.0%+75.2%0.091%
2/11/2026Deutsche Bank AG79,940$289K0.0%+4.0%0.071%
2/11/2026Fox Run Management L.L.C.30,603$110K0.0%N/A0.027%
2/11/2026LPL Financial LLC48,626$176K0.0%-21.0%0.043%
2/11/2026Los Angeles Capital Management LLC128,529$464K0.0%N/A0.114%
2/10/2026Goldman Sachs Group Inc.1,349,293$4.87M0.0%+140.0%1.196%
2/10/2026AXQ Capital LP25,701$93K0.0%+25.8%0.023%
2/10/2026Intech Investment Management LLC52,557$190K0.0%+36.0%0.047%
2/9/2026Geode Capital Management LLC2,292,410$8.28M0.0%+13.6%2.032%
2/6/2026 Keudell Morrison Wealth Management18,500$67K0.0%N/A0.016%
2/6/2026 Brown Wealth Management LLC258,673$934K0.2%+10.7%0.229%
2/6/2026ProShare Advisors LLC20,816$75K0.0%+21.9%0.018%
2/3/2026SBI Securities Co. Ltd.8,837$32K0.0%+27.9%0.008%
2/2/2026PKS Advisory Services LLC15,100$55K0.0%N/A0.013%
1/29/2026 Beirne Wealth Consulting Services LLC376,458$1.36M0.4%-8.3%0.361%
1/29/2026Concurrent Investment Advisors LLC26,508$96K0.0%+10.4%0.025%
1/28/2026Kingswood Wealth Advisors LLC36,000$130K0.0%+133.8%0.035%
1/27/2026 Summit Financial Wealth Advisors LLC103,288$373K0.1%+7.3%0.099%
1/26/2026Wealth Effects LLC111,750$403K0.1%+86.7%0.107%
1/14/2026 Hennion & Walsh Asset Management Inc.214,632$775K0.0%+15.7%0.206%
1/9/2026SG Americas Securities LLC10,575$38K0.0%-41.4%0.010%
1/1/2026JPMorgan Chase & Co.99,191$374K0.0%-17.7%0.095%
11/18/2025Advisory Services Network LLC8,960$34K0.0%-44.3%0.009%
11/17/2025Sherbrooke Park Advisers LLC15,904$60K0.0%N/A0.015%
Your book attached (Ad)

Bill Poulos is giving away his 'Safe Trade Options Formula' book for free - but only for a limited time through a temporary download link. He plans to charge for it soon. Download your copy now and lock it in at no cost, regardless of future pricing.tc pixel

Download the Safe Trade Options Formula book for free before access closes
11/17/2025Sig Brokerage LP34,502$130K0.0%N/A0.033%
11/17/2025Millennium Management LLC367,582$1.39M0.0%-7,160.7%0.352%
11/17/2025Brevan Howard Capital Management LP222,942$840K0.0%+67.4%0.214%
11/17/2025Bank of America Corp DE320,440$1.21M0.0%-55.2%0.307%
11/17/2025Ameriprise Financial Inc.74,312$280K0.0%-34.7%0.071%
11/14/2025Creative Planning36,378$137K0.0%-11.6%0.035%
11/14/2025Virtu Financial LLC48,068$181K0.0%-82.0%0.046%
11/14/2025Two Sigma Investments LP1,996,848$7.53M0.0%+356.6%1.914%
11/14/2025Bridgeway Capital Management LLC50,600$191K0.0%N/A0.048%
11/14/2025Caption Management LLC130,000$490K0.0%-570.7%0.125%


ALT Institutional Ownership - Frequently Asked Questions

During the previous two years, 160 institutional investors and hedge funds held shares of Altimmune. The most heavily invested institutionals were Vanguard Group Inc. ($24.03M), State Street Corp ($18.48M), Geode Capital Management LLC ($8.28M), Two Sigma Investments LP ($7.53M), Bellevue Group AG ($6.82M), Goldman Sachs Group Inc. ($4.87M), and Northern Trust Corp ($4.80M).Learn more on Altimmune's institutional investors.

78.05% of Altimmune's stock is owned by institutional investors. Learn more on ALT's institutional investor holdings.

Of the 146 institutional investors that purchased Altimmune's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Two Sigma Investments LP ($1.71M), State Street Corp ($1.52M), Ameriprise Financial Inc. ($1.38M), Nuveen LLC ($1.31M), Vanguard Group Inc. ($1.21M), Dimensional Fund Advisors LP ($1.10M), and Marshall Wace LLP ($988.29K).

Institutional investors have bought a total of 15,589,561 shares in the last 24 months. This purchase volume represents approximately $56.69M in transactions.

Of the 32 institutional investors that sold Altimmune's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Ameriprise Financial Inc. ($1.37M), Marshall Wace LLP ($1.15M), Squarepoint Ops LLC ($549.75K), Bank of America Corp DE ($395.58K), Virtu Financial LLC ($219.71K), ExodusPoint Capital Management LP ($166.26K), and Dimensional Fund Advisors LP ($163.77K).

Institutional investors have sold a total of 4,707,128 shares in the last 24 months. This volume of shares sold represents approximately $17.84M in transactions.


Related Companies

This page (NASDAQ:ALT) was last updated on 7/24/2026 by MarketBeat.com Staff.
From Our Partners
Universal basic income is not impossible. It exist (kind of)
Robert Kiyosaki, author of Rich Dad Poor Dad, is highlighting an income strategy he calls the Patriot Income P...
Freedom Financial | Sponsoredtc pixel
Here’s the stock symbol I’ve promised
Whitney Tilson of Stansberry Research has long recommended Berkshire Hathaway as a core retirement holding - b...
Stansberry Research | Sponsoredtc pixel
Have you seen Elon’s new “supercurrency”? (It affects you)
Elon Musk just became the world's first trillionaire following the biggest IPO in history, giving him access t...
StocksToTrade | Sponsoredtc pixel
Trump’s emergency dollar reset
Bloomberg research shows the U.S. dollar's share of global reserves has fallen to the lowest level this centur...
Porter & Company | Sponsoredtc pixel
BlackRock is hoarding it. JPMorgan is hoarding it. Do you own it?
BlackRock, JPMorgan, Goldman Sachs, and Fidelity are reportedly accumulating a scarce blockchain asset - one t...
Awesomely | Sponsoredtc pixel
Here’s Why Trump Won’t End The Iran War
Trump has called an Iran deal close 38 times since the war began, yet the fighting keeps flaring back up. O...
Banyan Hill Publishing | Sponsoredtc pixel
This tiny piece of glass could be bigger than GPUs
A tiny glass device smaller than a fingertip could redefine AI hardware. Nvidia CEO Jensen Huang calls it esse...
Brownstone Research | Sponsoredtc pixel
August 6 could be a BIG day for one AI company
One AI company's revenue has surged 757 percent in the past year, earning it an A rating from Louis Navellier'...
InvestorPlace | Sponsoredtc pixel