Free Trial
Tada emoji MarketBeat All Access — Now Just $5.00 for 5 Weeks

Altimmune (ALT) Institutional Ownership

Altimmune logo
$3.54 +0.01 (+0.28%)
Closing price 08/22/2025 04:00 PM Eastern
Extended Trading
$3.54 0.00 (-0.14%)
As of 08/22/2025 07:59 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 Polygon.io. 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)
93
Total
Institutional Inflows
(last 12 months)
$43.26M
Number of
Institutional Sellers
(last 12 months)
47
Total
Institutional Outflows
(last 12 months)
$31.39M
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.

Skip Chart & View Institutional Buying and Selling Data

ALT Institutional Buying and Selling by Quarter

Altimmune Major Shareholders & Ownership History

Export to Excel
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2025 B. Riley Wealth Advisors Inc.18,288$71K0.0%N/A0.021%
8/16/2025 Headlands Technologies LLC18,557$72K0.0%N/A0.021%
8/15/2025 Tower Research Capital LLC TRC 14,956$58K0.0%+234.9%0.017%
8/15/2025 Rafferty Asset Management LLC102,011$395K0.0%-29.0%0.116%
8/15/2025 BNP Paribas Financial Markets10,095$39K0.0%+108.5%0.011%
8/15/2025 Brevan Howard Capital Management LP133,209$516K0.0%+204.1%0.151%
8/15/2025 Bank of America Corp DE716,019$2.77M0.0%+155.2%0.811%
8/15/2025 Ameriprise Financial Inc.113,875$441K0.0%-92.1%0.129%
8/14/2025 Raymond James Financial Inc.25,969$100K0.0%+77.1%0.032%
8/14/2025 Bayesian Capital Management LP14,300$55K0.0%N/A0.018%
8/14/2025 The Manufacturers Life Insurance Company 27,945$108K0.0%+10.9%0.034%
8/14/2025 Sei Investments Co.18,421$71K0.0%N/A0.023%
8/14/2025 Federated Hermes Inc.915,458$3.54M0.0%+387.7%1.129%
8/13/2025 Marshall Wace LLP22,100$86K0.0%-98.1%0.027%
8/13/2025 Invesco Ltd.106,863$414K0.0%+31.7%0.132%
8/13/2025 Virtus Investment Advisers LLC13,151$51K0.0%-31.2%0.016%
8/13/2025 Hsbc Holdings PLC85,468$329K0.0%+18.3%0.105%
8/12/2025 Steward Partners Investment Advisory LLC213,384$826K0.0%+43.0%0.263%
8/12/2025Jefferies Financial Group Inc.35,000$135K0.0%+40.0%0.043%
8/12/2025 Prudential Financial Inc.11,195$43K0.0%N/A0.014%
8/12/2025 Rhumbline Advisers113,981$441K0.0%+7.0%0.141%
8/12/2025 Legal & General Group Plc8,620$33K0.0%-87.3%0.011%
8/11/2025 Brown Wealth Management LLC231,083$894K0.3%+131.0%0.285%
8/8/2025 Intech Investment Management LLC144,890$561K0.0%+102.9%0.179%
8/8/2025 Cetera Investment Advisers18,150$70K0.0%-20.4%0.022%
8/8/2025 Creative Planning41,164$159K0.0%+30.2%0.051%
8/8/2025 Geode Capital Management LLC1,934,880$7.49M0.0%+13.4%2.386%
8/7/2025 Profund Advisors LLC21,713$84K0.0%-27.0%0.027%
8/7/2025 Los Angeles Capital Management LLC13,947$54K0.0%N/A0.017%
8/4/2025 Moody Aldrich Partners LLC157,614$610K0.1%N/A0.194%
8/4/2025 Horizon Wealth Management LLC15,000$58K0.0%-40.0%0.018%
8/4/2025 Beirne Wealth Consulting Services LLC342,458$1.33M0.4%+16.3%0.422%
8/1/2025 Envestnet Asset Management Inc.32,908$127K0.0%+48.0%0.041%
7/31/2025 Caitong International Asset Management Co. Ltd239,630$927K0.7%+25,474.2%0.295%
7/25/2025 Concurrent Investment Advisors LLC25,258$98K0.0%+16.4%0.031%
7/23/2025 Kingswood Wealth Advisors LLC10,400$40K0.0%N/A0.013%
7/22/2025 Keudell Morrison Wealth Management16,360$63K0.0%N/A0.020%
7/18/2025 PFG Investments LLC12,000$46K0.0%-31.4%0.015%
7/15/2025 North Star Investment Management Corp.17,000$66K0.0%-43.3%0.021%
7/10/2025 Wealth Enhancement Advisory Services LLC24,828$96K0.0%+70.5%0.031%
A New Way to Double Your Retirement Income? (Ad)

Bloomberg reports that a new class of investments is “entering a golden era,” with yields fueling a retail boom. For retirees, that could mean a way to generate reliable monthly income—without the outdated 4% withdrawal rule, risky trading, or high-fee annuities. If you’re ready to stop worrying about money running out and start enjoying the freedom to cover expenses, treat loved ones, and live life on your terms, this may be exactly what you’ve been waiting for.tc pixel

Click here to see how to turn your savings into a monthly income machine.
7/10/2025 Baader Bank Aktiengesellschaft34,292$133K0.0%N/A0.042%
6/18/2025 Voya Investment Management LLC18,967$95K0.0%-10.7%0.023%
5/21/2025 Geneos Wealth Management Inc.10,000$50K0.0%N/A0.012%
5/16/2025 Goldman Sachs Group Inc.390,335$1.95M0.0%-25.8%0.481%
5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.48,901$247K0.0%+4.8%0.063%
5/15/2025 Royal Bank of Canada52,467$262K0.0%-7.2%0.068%
5/14/2025 Rafferty Asset Management LLC143,672$718K0.0%-8.9%0.187%
5/14/2025 MetLife Investment Management LLC46,870$234K0.0%+5.4%0.061%
5/14/2025 AlphaQuest LLC19,820$99K0.0%N/A0.026%
5/14/2025 Hsbc Holdings PLC72,258$349K0.0%N/A0.094%
5/14/2025 Wellington Management Group LLP224,954$1.13M0.0%+9.6%0.292%
5/13/2025 American Century Companies Inc.17,175$86K0.0%-61.6%0.022%
5/13/2025 Fox Run Management L.L.C.38,200$191K0.0%+196.0%0.050%
5/13/2025 E Fund Management Co. Ltd.13,427$67K0.0%+20.3%0.017%
5/12/2025 Nuveen LLC263,898$1.30M0.0%N/A0.343%
5/12/2025 Invesco Ltd.81,128$406K0.0%-67.2%0.105%
5/9/2025 Deutsche Bank AG79,851$399K0.0%+3.9%0.104%
5/9/2025 Vanguard Group Inc.4,407,462$22.04M0.0%-0.5%5.723%
5/8/2025 Headland Capital LLC10,097$50K0.0%N/A0.013%
5/8/2025Jefferies Financial Group Inc.25,000$125K0.0%N/A0.032%
5/8/2025 Federated Hermes Inc.187,727$939K0.0%N/A0.244%
5/7/2025 Brown Wealth Management LLC100,024$500K0.2%+100.0%0.130%
4/29/2025 Concurrent Investment Advisors LLC21,693$108K0.0%N/A0.028%
4/29/2025 Bank of New York Mellon Corp189,000$945K0.0%+1.2%0.245%
4/29/2025 OneDigital Investment Advisors LLC21,590$108K0.0%-11.8%0.028%
4/28/2025 Teacher Retirement System of Texas19,144$96K0.0%-9.7%0.025%
4/23/2025 Sequoia Financial Advisors LLC10,155$51K0.0%-25.6%0.013%
4/22/2025 PFG Investments LLC17,500$88K0.0%+31.6%0.023%
4/17/2025 Exchange Traded Concepts LLC153,606$768K0.0%-3.7%0.199%
4/14/2025 Kraematon Investment Advisors Inc.35,085$175K0.2%+14.0%0.046%
4/11/2025 Horizon Wealth Management LLC25,000$125K0.0%N/A0.032%
4/11/2025 Magnus Financial Group LLC10,000$50K0.0%N/A0.013%
4/10/2025 Hennion & Walsh Asset Management Inc.197,684$988K0.0%-3.8%0.257%
4/9/2025 RFG Advisory LLC324,397$1.62M0.0%N/A0.421%
4/7/2025 GAMMA Investing LLC6,745$34K0.0%+214.2%0.009%
3/24/2025 Wellington Management Group LLP205,233$1.48M0.0%+4.1%0.266%
2/18/2025 Sunbelt Securities Inc.10,844$79K0.0%+356.8%0.015%
2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC92,392$666K0.0%+16.6%0.130%
2/17/2025 Squarepoint Ops LLC14,706$106K0.0%-76.2%0.021%
2/17/2025 Two Sigma Advisers LP65,700$474K0.0%-25.7%0.092%
2/17/2025 Two Sigma Investments LP605,303$4.36M0.0%+33.2%0.851%
2/17/2025 Rafferty Asset Management LLC157,750$1.14M0.0%+1.3%0.222%
2/17/2025 ProShare Advisors LLC23,371$169K0.0%+74.1%0.033%
2/17/2025Nuveen Asset Management LLC216,926$1.56M0.0%-7.5%0.305%
2/17/2025 OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC26,899$194K0.0%+22.0%0.038%
2/17/2025 Millennium Management LLC345,637$2.49M0.0%+139.8%0.486%
2/17/2025 Focus Partners Wealth122,539$884K0.0%N/A0.172%
2/17/2025 Ensign Peak Advisors Inc454,981$3.28M0.0%+39.2%0.640%
2/17/2025 Deutsche Bank AG76,825$554K0.0%+37.7%0.108%
2/17/2025 D. E. Shaw & Co. Inc.459,833$3.32M0.0%-39.3%0.647%
A New Way to Double Your Retirement Income? (Ad)

Bloomberg reports that a new class of investments is “entering a golden era,” with yields fueling a retail boom. For retirees, that could mean a way to generate reliable monthly income—without the outdated 4% withdrawal rule, risky trading, or high-fee annuities. If you’re ready to stop worrying about money running out and start enjoying the freedom to cover expenses, treat loved ones, and live life on your terms, this may be exactly what you’ve been waiting for.tc pixel

Click here to see how to turn your savings into a monthly income machine.
2/17/2025 Brevan Howard Capital Management LP14,031$101K0.0%N/A0.020%
2/17/2025 Bridgefront Capital LLC17,223$124K0.0%N/A0.024%
2/17/2025 Baird Financial Group Inc.59,440$429K0.0%N/A0.084%
2/17/2025 Balyasny Asset Management L.P.196,327$1.42M0.0%+9.1%0.276%
2/17/2025 Bayesian Capital Management LP14,700$106K0.0%N/A0.021%
2/17/2025 Bellevue Group AG945,446$6.82M0.1%+9.5%1.329%
2/17/2025 Bank of America Corp DE181,889$1.31M0.0%+21.7%0.256%
2/17/2025 BNP Paribas Financial Markets8,156$59K0.0%-80.6%0.011%
2/17/2025 Ameriprise Financial Inc.5,254,898$37.89M0.0%+35.6%7.389%
2/14/2025 Freestone Grove Partners LP14,418$104K0.0%N/A0.020%
(Data available from 1/1/2016 forward)

ALT Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ALT shares?

During the previous two years, 163 institutional investors and hedge funds held shares of Altimmune. The most heavily invested institutionals were Vanguard Group Inc. ($22.04M), State Street Corp ($20.96M), Timelo Investment Management Inc. ($9.10M), Geode Capital Management LLC ($7.49M), Bellevue Group AG ($6.82M), Knoll Capital Management LLC ($5.77M), and Northern Trust Corp ($4.80M).Learn more on Altimmune's institutional investors.

What percentage of Altimmune's stock is owned by institutional investors?

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

Which institutional investors have been buying Altimmune's stock?

Of the 137 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: Ameriprise Financial Inc. ($1.38M), Federated Hermes Inc. ($915.46K), Timelo Investment Management Inc. ($779.10K), Bank of America Corp DE ($467.85K), Farallon Capital Management LLC ($436K), Lighthouse Investment Partners LLC ($399.36K), and Knoll Capital Management LLC ($367.22K).

How much institutional buying is happening at Altimmune?

Institutional investors have bought a total of 7,622,281 shares in the last 24 months. This purchase volume represents approximately $43.26M in transactions.

Which of Altimmune's major shareholders have been selling company stock?

Of the 47 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. ($1.33M), Marshall Wace LLP ($1.15M), Portolan Capital Management LLC ($579.27K), Vanguard Group Inc. ($576.40K), State Street Corp ($495.46K), D. E. Shaw & Co. Inc. ($298.17K), and SG Americas Securities LLC ($220.14K).

How much institutional selling is happening at Altimmune?

Institutional investors have sold a total of 5,947,165 shares in the last 24 months. This volume of shares sold represents approximately $31.39M in transactions.


Related Companies

This page (NASDAQ:ALT) was last updated on 8/24/2025 by MarketBeat.com Staff
From Our Partners
“Sell Nvidia before earnings”
Eric Fry just went live with one of his most controversial calls yet: “Sell Nvidia.” While Wall Street has bee...
InvestorPlace | Sponsoredtc pixel
Tax Drain Deadline: Protect Your Wealth Before September 15th
On September 15th, the IRS collects another round of quarterly tax payments—targeting self-employed profession...
American Alternative | Sponsoredtc pixel
Everyone’s watching Nvidia right now. Here’s why I’m excited.
So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...
Timothy Sykes | Sponsoredtc pixel
Trump’s Exec Order #14154 could be a “Millionaire-Maker”
Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans...
Paradigm Press | Sponsoredtc pixel
Trump’s betrayal exposed
Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...
Porter & Company | Sponsoredtc pixel
Cover all your expenses with just $118,000 invested?
Generate up to $5,000/month with 10X less money? That's what every financial advisor tells you. But I just ...
Investors Alley | Sponsoredtc pixel
Take a look at this picture ...
A strange investment secret — discovered just a few short weeks before this image was taken — correctly predic...
Weiss Ratings | Sponsoredtc pixel
[No Brainer Gold Play]: “Show me a better investment.”
A Historic Gold Announcement Is About to Rock Wall Street? For months, sharp-eyed analysts have watched the...
Golden Portfolio | Sponsoredtc pixel