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Altimmune (ALT) Institutional Ownership

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$3.92 -0.08 (-2.00%)
Closing price 04:00 PM Eastern
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$3.88 -0.04 (-0.89%)
As of 07:34 PM Eastern
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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)
$42.71M
Number of
Institutional Sellers
(last 12 months)
47
Total
Institutional Outflows
(last 12 months)
$30.17M
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ALT Institutional Buying and Selling by Quarter

Altimmune Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/9/2025 Voya Investment Management LLC13,690$52K0.0%-34.3%0.016%
10/3/2025 Summit Financial Wealth Advisors LLC96,288$373K0.1%-21.7%0.109%
9/29/2025 Summit Financial Wealth Advisors LLC122,988$476K0.1%+4.2%0.139%
8/19/2025B. Riley Wealth Advisors Inc.18,288$71K0.0%N/A0.021%
8/16/2025Headlands Technologies LLC18,557$72K0.0%N/A0.021%
8/15/2025Tower Research Capital LLC TRC 14,956$58K0.0%+234.9%0.017%
8/15/2025Rafferty Asset Management LLC102,011$395K0.0%-29.0%0.116%
8/15/2025BNP Paribas Financial Markets10,095$39K0.0%+108.5%0.011%
8/15/2025Brevan Howard Capital Management LP133,209$516K0.0%+204.1%0.151%
8/15/2025Bank of America Corp DE716,019$2.77M0.0%+155.2%0.811%
8/15/2025Ameriprise Financial Inc.113,875$441K0.0%-92.1%0.129%
8/14/2025Raymond James Financial Inc.25,969$100K0.0%+77.1%0.032%
8/14/2025Bayesian Capital Management LP14,300$55K0.0%N/A0.018%
8/14/2025The Manufacturers Life Insurance Company 27,945$108K0.0%+10.9%0.034%
8/14/2025Sei Investments Co.18,421$71K0.0%N/A0.023%
8/14/2025Federated Hermes Inc.915,458$3.54M0.0%+387.7%1.129%
8/13/2025Marshall Wace LLP22,100$86K0.0%-98.1%0.027%
8/13/2025Invesco Ltd.106,863$414K0.0%+31.7%0.132%
8/13/2025Virtus Investment Advisers LLC13,151$51K0.0%-31.2%0.016%
8/13/2025Hsbc Holdings PLC85,468$329K0.0%+18.3%0.105%
8/12/2025Steward 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%
8/12/2025Prudential Financial Inc.11,195$43K0.0%N/A0.014%
8/12/2025Rhumbline Advisers113,981$441K0.0%+7.0%0.141%
8/12/2025Legal & General Group Plc8,620$33K0.0%-87.3%0.011%
8/11/2025Brown Wealth Management LLC231,083$894K0.3%+131.0%0.285%
8/8/2025Intech Investment Management LLC144,890$561K0.0%+102.9%0.179%
8/8/2025Cetera Investment Advisers18,150$70K0.0%-20.4%0.022%
8/8/2025Creative Planning41,164$159K0.0%+30.2%0.051%
8/8/2025Geode Capital Management LLC1,934,880$7.49M0.0%+13.4%2.386%
8/7/2025Profund Advisors LLC21,713$84K0.0%-27.0%0.027%
8/7/2025Los Angeles Capital Management LLC13,947$54K0.0%N/A0.017%
8/4/2025Moody Aldrich Partners LLC157,614$610K0.1%N/A0.194%
8/4/2025Horizon Wealth Management LLC15,000$58K0.0%-40.0%0.018%
8/4/2025Beirne Wealth Consulting Services LLC342,458$1.33M0.4%+16.3%0.422%
8/1/2025Envestnet Asset Management Inc.32,908$127K0.0%+48.0%0.041%
7/31/2025Caitong International Asset Management Co. Ltd239,630$927K0.7%+25,474.2%0.295%
7/25/2025Concurrent Investment Advisors LLC25,258$98K0.0%+16.4%0.031%
7/23/2025Kingswood Wealth Advisors LLC10,400$40K0.0%N/A0.013%
7/22/2025Keudell Morrison Wealth Management16,360$63K0.0%N/A0.020%
7/18/2025PFG Investments LLC12,000$46K0.0%-31.4%0.015%
7/15/2025North Star Investment Management Corp.17,000$66K0.0%-43.3%0.021%
7/10/2025Wealth Enhancement Advisory Services LLC24,828$96K0.0%+70.5%0.031%
7/10/2025Baader Bank Aktiengesellschaft34,292$133K0.0%N/A0.042%
6/18/2025 Voya Investment Management LLC18,967$95K0.0%-10.7%0.023%
5/21/2025Geneos Wealth Management Inc.10,000$50K0.0%N/A0.012%
5/16/2025Goldman Sachs Group Inc.390,335$1.95M0.0%-25.8%0.481%
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.48,901$247K0.0%+4.8%0.063%
5/15/2025Royal Bank of Canada52,467$262K0.0%-7.2%0.068%
5/14/2025Rafferty Asset Management LLC143,672$718K0.0%-8.9%0.187%
5/14/2025MetLife Investment Management LLC46,870$234K0.0%+5.4%0.061%
5/14/2025AlphaQuest LLC19,820$99K0.0%N/A0.026%
5/14/2025Hsbc Holdings PLC72,258$349K0.0%N/A0.094%
5/14/2025Wellington Management Group LLP224,954$1.13M0.0%+9.6%0.292%
5/13/2025American Century Companies Inc.17,175$86K0.0%-61.6%0.022%
5/13/2025Fox Run Management L.L.C.38,200$191K0.0%+196.0%0.050%
5/13/2025E Fund Management Co. Ltd.13,427$67K0.0%+20.3%0.017%
5/12/2025Nuveen LLC263,898$1.30M0.0%N/A0.343%
5/12/2025Invesco Ltd.81,128$406K0.0%-67.2%0.105%
5/9/2025Deutsche Bank AG79,851$399K0.0%+3.9%0.104%
5/9/2025Vanguard Group Inc.4,407,462$22.04M0.0%-0.5%5.723%
5/8/2025Headland Capital LLC10,097$50K0.0%N/A0.013%
5/8/2025Jefferies Financial Group Inc.25,000$125K0.0%N/A0.032%
5/8/2025Federated Hermes Inc.187,727$939K0.0%N/A0.244%
5/7/2025Brown Wealth Management LLC100,024$500K0.2%+100.0%0.130%
4/29/2025Concurrent Investment Advisors LLC21,693$108K0.0%N/A0.028%
4/29/2025Bank of New York Mellon Corp189,000$945K0.0%+1.2%0.245%
4/29/2025OneDigital Investment Advisors LLC21,590$108K0.0%-11.8%0.028%
4/28/2025Teacher Retirement System of Texas19,144$96K0.0%-9.7%0.025%
4/23/2025Sequoia Financial Advisors LLC10,155$51K0.0%-25.6%0.013%
4/22/2025PFG Investments LLC17,500$88K0.0%+31.6%0.023%
4/17/2025Exchange Traded Concepts LLC153,606$768K0.0%-3.7%0.199%
4/14/2025Kraematon Investment Advisors Inc.35,085$175K0.2%+14.0%0.046%
4/11/2025Horizon Wealth Management LLC25,000$125K0.0%N/A0.032%
4/11/2025Magnus Financial Group LLC10,000$50K0.0%N/A0.013%
4/10/2025Hennion & Walsh Asset Management Inc.197,684$988K0.0%-3.8%0.257%
4/9/2025RFG Advisory LLC324,397$1.62M0.0%N/A0.421%
4/7/2025GAMMA Investing LLC6,745$34K0.0%+214.2%0.009%
3/24/2025Wellington Management Group LLP205,233$1.48M0.0%+4.1%0.266%
2/18/2025Sunbelt Securities Inc.10,844$79K0.0%+356.8%0.015%
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC92,392$666K0.0%+16.6%0.130%
2/17/2025Squarepoint Ops LLC14,706$106K0.0%-76.2%0.021%
2/17/2025Two Sigma Advisers LP65,700$474K0.0%-25.7%0.092%
2/17/2025Two Sigma Investments LP605,303$4.36M0.0%+33.2%0.851%
2/17/2025Rafferty Asset Management LLC157,750$1.14M0.0%+1.3%0.222%
2/17/2025ProShare Advisors LLC23,371$169K0.0%+74.1%0.033%
2/17/2025Nuveen Asset Management LLC216,926$1.56M0.0%-7.5%0.305%
2/17/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC26,899$194K0.0%+22.0%0.038%
2/17/2025Millennium Management LLC345,637$2.49M0.0%+139.8%0.486%
2/17/2025Focus Partners Wealth122,539$884K0.0%N/A0.172%
2/17/2025Ensign Peak Advisors Inc454,981$3.28M0.0%+39.2%0.640%
2/17/2025Deutsche Bank AG76,825$554K0.0%+37.7%0.108%
2/17/2025D. E. Shaw & Co. Inc.459,833$3.32M0.0%-39.3%0.647%
2/17/2025Brevan Howard Capital Management LP14,031$101K0.0%N/A0.020%
2/17/2025Bridgefront Capital LLC17,223$124K0.0%N/A0.024%
2/17/2025Baird Financial Group Inc.59,440$429K0.0%N/A0.084%
2/17/2025Balyasny Asset Management L.P.196,327$1.42M0.0%+9.1%0.276%
2/17/2025Bayesian Capital Management LP14,700$106K0.0%N/A0.021%
2/17/2025Bellevue Group AG945,446$6.82M0.1%+9.5%1.329%
2/17/2025Bank of America Corp DE181,889$1.31M0.0%+21.7%0.256%
(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 7,534,783 shares in the last 24 months. This purchase volume represents approximately $42.71M 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 JPMorgan Chase & Co. ($191.85K).

How much institutional selling is happening at Altimmune?

Institutional investors have sold a total of 5,760,878 shares in the last 24 months. This volume of shares sold represents approximately $30.17M in transactions.


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This page (NASDAQ:ALT) was last updated on 10/10/2025 by MarketBeat.com Staff
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