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ALT Insider Trading

Insider Ownership Percentage: 4.40%
Insider Buying (Last 12 Months): $52,000.00
Insider Selling (Last 12 Months): $0.00

Altimmune Insider Trading History Chart

This chart shows the insider buying and selling history at Altimmune by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Altimmune Share Price & Price History

Current Price: $5.31
Price Change: ▲ Price Increase of +0.2 (3.91%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for ALT up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Altimmune Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/13/2025Gregory L. WeaverCFOBuy10,000$5.20$52,000.0010,000View SEC Filing Icon  
8/19/2024David DrutzDirectorSell16,011$6.90$110,475.9041,958View SEC Filing Icon  
8/15/2023David DrutzDirectorBuy300$2.88$864.0029,785View SEC Filing Icon  
3/23/2023David DrutzDirectorBuy9,000$4.27$38,430.0029,484View SEC Filing Icon  
3/23/2023Matthew Scott HarrisInsiderBuy10,000$4.22$42,200.0033,311View SEC Filing Icon  
12/22/2022Wayne PisanoDirectorSell20,000$15.01$300,200.008,498View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Altimmune (NASDAQ:ALT)

78.05% of Altimmune stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ALT by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Altimmune Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/18/2025Advisory Services Network LLC8,960$34K0.0%-44.3%0.009%Search for SEC Filing on Google Icon
11/17/2025Sherbrooke Park Advisers LLC15,904$60K0.0%N/A0.015%Search for SEC Filing on Google Icon
11/17/2025Sig Brokerage LP34,502$0.13M0.0%N/A0.033%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC367,582$1.39M0.0%-7,160.7%0.352%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP222,942$0.84M0.0%+67.4%0.214%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE320,440$1.21M0.0%-55.2%0.307%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.74,312$0.28M0.0%-34.7%0.071%Search for SEC Filing on Google Icon
11/14/2025Creative Planning36,378$0.14M0.0%-11.6%0.035%Search for SEC Filing on Google Icon
11/14/2025Virtu Financial LLC48,068$0.18M0.0%-82.0%0.046%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP1,996,848$7.53M0.0%+356.6%1.914%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC50,600$0.19M0.0%N/A0.048%Search for SEC Filing on Google Icon
11/14/2025Caption Management LLC130,000$0.49M0.0%-570.7%0.125%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC584,696$2.20M0.0%N/A0.560%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets74,533$0.28M0.0%+638.3%0.071%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.13,929$53K0.0%+197.6%0.013%Search for SEC Filing on Google Icon
11/13/2025DLD Asset Management LP50,000$0.19M0.0%+121.2%0.048%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC340,283$1.28M0.0%+16.5%0.326%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP297,789$1.12M0.0%-33.5%0.285%Search for SEC Filing on Google Icon
11/12/2025Victory Capital Management Inc.10,061$38K0.0%N/A0.011%Search for SEC Filing on Google Icon
11/12/2025Rafferty Asset Management LLC156,194$0.59M0.0%+53.1%0.177%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC38,639$0.15M0.0%-73.3%0.044%Search for SEC Filing on Google Icon
11/10/2025AXQ Capital LP20,435$77K0.0%-50.5%0.023%Search for SEC Filing on Google Icon
11/10/2025EverSource Wealth Advisors LLC16,033$60K0.0%+13,260.8%0.018%Search for SEC Filing on Google Icon
11/7/2025Kraematon Investment Advisors Inc.17,435$66K0.1%-48.1%0.020%Search for SEC Filing on Google Icon
11/7/2025Beirne Wealth Consulting Services LLC410,458$1.55M0.4%+19.9%0.465%Search for SEC Filing on Google Icon
11/7/2025GSA Capital Partners LLP116,770$0.44M0.0%-3.8%0.132%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.6,373,638$24.03M0.0%+23.3%7.222%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.99,191$0.37M0.0%-17.7%0.112%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers130,743$0.49M0.0%+14.7%0.148%Search for SEC Filing on Google Icon
11/6/2025Profund Advisors LLC33,712$0.13M0.0%+55.3%0.038%Search for SEC Filing on Google Icon
10/29/2025Sequoia Financial Advisors LLC12,074$46K0.0%N/A0.014%Search for SEC Filing on Google Icon
10/28/2025Wealth Effects LLC59,850$0.23M0.1%+88.5%0.068%Search for SEC Filing on Google Icon
10/23/2025Kingswood Wealth Advisors LLC15,400$58K0.0%+48.1%0.017%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC18,040$68K0.0%N/A0.020%Search for SEC Filing on Google Icon
10/22/2025North Star Investment Management Corp.8,000$30K0.0%-52.9%0.009%Search for SEC Filing on Google Icon
10/22/2025Hennion & Walsh Asset Management Inc.185,575$0.70M0.0%-1.8%0.210%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC13,690$52K0.0%-34.3%0.016%Search for SEC Filing on Google Icon
10/3/2025Summit Financial Wealth Advisors LLC96,288$0.37M0.1%-21.7%0.109%Search for SEC Filing on Google Icon
9/29/2025Summit Financial Wealth Advisors LLC122,988$0.48M0.1%+4.2%0.139%Search for SEC Filing on Google Icon
8/19/2025B. Riley Wealth Advisors Inc.18,288$71K0.0%N/A0.021%Search for SEC Filing on Google Icon
8/16/2025Headlands Technologies LLC18,557$72K0.0%N/A0.021%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 14,956$58K0.0%+234.9%0.017%Search for SEC Filing on Google Icon
8/15/2025Rafferty Asset Management LLC102,011$0.40M0.0%-29.0%0.116%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets10,095$39K0.0%+108.5%0.011%Search for SEC Filing on Google Icon
8/15/2025Brevan Howard Capital Management LP133,209$0.52M0.0%+204.1%0.151%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE716,019$2.77M0.0%+155.2%0.811%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.113,875$0.44M0.0%-92.1%0.129%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.25,969$100K0.0%+77.1%0.032%Search for SEC Filing on Google Icon
8/14/2025Bayesian Capital Management LP14,300$55K0.0%N/A0.018%Search for SEC Filing on Google Icon
8/14/2025The Manufacturers Life Insurance Company 27,945$0.11M0.0%+10.9%0.034%Search for SEC Filing on Google Icon
8/14/2025Sei Investments Co.18,421$71K0.0%N/A0.023%Search for SEC Filing on Google Icon
8/14/2025Federated Hermes Inc.915,458$3.54M0.0%+387.7%1.129%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP22,100$86K0.0%-98.1%0.027%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.106,863$0.41M0.0%+31.7%0.132%Search for SEC Filing on Google Icon
8/13/2025Virtus Investment Advisers LLC13,151$51K0.0%-31.2%0.016%Search for SEC Filing on Google Icon
8/13/2025Hsbc Holdings PLC85,468$0.33M0.0%+18.3%0.105%Search for SEC Filing on Google Icon
8/12/2025Steward Partners Investment Advisory LLC213,384$0.83M0.0%+43.0%0.263%Search for SEC Filing on Google Icon
8/12/2025Jefferies Financial Group Inc.35,000$0.14M0.0%+40.0%0.043%Search for SEC Filing on Google Icon
8/12/2025Prudential Financial Inc.11,195$43K0.0%N/A0.014%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers113,981$0.44M0.0%+7.0%0.141%Search for SEC Filing on Google Icon
8/12/2025Legal & General Group Plc8,620$33K0.0%-87.3%0.011%Search for SEC Filing on Google Icon
8/11/2025Brown Wealth Management LLC231,083$0.89M0.3%+131.0%0.285%Search for SEC Filing on Google Icon
8/8/2025Intech Investment Management LLC144,890$0.56M0.0%+102.9%0.179%Search for SEC Filing on Google Icon
8/8/2025Cetera Investment Advisers18,150$70K0.0%-20.4%0.022%Search for SEC Filing on Google Icon
8/8/2025Creative Planning41,164$0.16M0.0%+30.2%0.051%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC1,934,880$7.49M0.0%+13.4%2.386%Search for SEC Filing on Google Icon
8/7/2025Profund Advisors LLC21,713$84K0.0%-27.0%0.027%Search for SEC Filing on Google Icon
8/7/2025Los Angeles Capital Management LLC13,947$54K0.0%N/A0.017%Search for SEC Filing on Google Icon
8/4/2025Moody Aldrich Partners LLC157,614$0.61M0.1%N/A0.194%Search for SEC Filing on Google Icon
8/4/2025Horizon Wealth Management LLC15,000$58K0.0%-40.0%0.018%Search for SEC Filing on Google Icon
8/4/2025Beirne Wealth Consulting Services LLC342,458$1.33M0.4%+16.3%0.422%Search for SEC Filing on Google Icon
8/1/2025Envestnet Asset Management Inc.32,908$0.13M0.0%+48.0%0.041%Search for SEC Filing on Google Icon
7/31/2025Caitong International Asset Management Co. Ltd239,630$0.93M0.7%+25,474.2%0.295%Search for SEC Filing on Google Icon
7/25/2025Concurrent Investment Advisors LLC25,258$98K0.0%+16.4%0.031%Search for SEC Filing on Google Icon
7/23/2025Kingswood Wealth Advisors LLC10,400$40K0.0%N/A0.013%Search for SEC Filing on Google Icon
7/22/2025Keudell Morrison Wealth Management16,360$63K0.0%N/A0.020%Search for SEC Filing on Google Icon
7/18/2025PFG Investments LLC12,000$46K0.0%-31.4%0.015%Search for SEC Filing on Google Icon
7/15/2025North Star Investment Management Corp.17,000$66K0.0%-43.3%0.021%Search for SEC Filing on Google Icon
7/10/2025Wealth Enhancement Advisory Services LLC24,828$96K0.0%+70.5%0.031%Search for SEC Filing on Google Icon
7/10/2025Baader Bank Aktiengesellschaft34,292$0.13M0.0%N/A0.042%Search for SEC Filing on Google Icon
6/18/2025Voya Investment Management LLC18,967$95K0.0%-10.7%0.023%Search for SEC Filing on Google Icon
5/21/2025Geneos Wealth Management Inc.10,000$50K0.0%N/A0.012%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.390,335$1.95M0.0%-25.8%0.481%Search for SEC Filing on Google Icon
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.48,901$0.25M0.0%+4.8%0.063%Search for SEC Filing on Google Icon
5/15/2025Royal Bank of Canada52,467$0.26M0.0%-7.2%0.068%Search for SEC Filing on Google Icon
5/14/2025Rafferty Asset Management LLC143,672$0.72M0.0%-8.9%0.187%Search for SEC Filing on Google Icon
5/14/2025MetLife Investment Management LLC46,870$0.23M0.0%+5.4%0.061%Search for SEC Filing on Google Icon
5/14/2025AlphaQuest LLC19,820$99K0.0%N/A0.026%Search for SEC Filing on Google Icon
5/14/2025Hsbc Holdings PLC72,258$0.35M0.0%N/A0.094%Search for SEC Filing on Google Icon
5/14/2025Wellington Management Group LLP224,954$1.13M0.0%+9.6%0.292%Search for SEC Filing on Google Icon
5/13/2025American Century Companies Inc.17,175$86K0.0%-61.6%0.022%Search for SEC Filing on Google Icon
5/13/2025Fox Run Management L.L.C.38,200$0.19M0.0%+196.0%0.050%Search for SEC Filing on Google Icon
5/13/2025E Fund Management Co. Ltd.13,427$67K0.0%+20.3%0.017%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC263,898$1.30M0.0%N/A0.343%Search for SEC Filing on Google Icon
5/12/2025Invesco Ltd.81,128$0.41M0.0%-67.2%0.105%Search for SEC Filing on Google Icon
5/9/2025Deutsche Bank AG79,851$0.40M0.0%+3.9%0.104%Search for SEC Filing on Google Icon
5/9/2025Vanguard Group Inc.4,407,462$22.04M0.0%-0.5%5.723%Search for SEC Filing on Google Icon
5/8/2025Headland Capital LLC10,097$50K0.0%N/A0.013%Search for SEC Filing on Google Icon
5/8/2025Jefferies Financial Group Inc.25,000$0.13M0.0%N/A0.032%Search for SEC Filing on Google Icon
5/8/2025Federated Hermes Inc.187,727$0.94M0.0%N/A0.244%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Altimmune logo
Altimmune, Inc., a clinical stage biopharmaceutical company, focuses on developing treatments for obesity and liver diseases. The company's lead product candidate, pemvidutide, a GLP-1/glucagon dual receptor agonist that is in Phase 2 trial for the treatment of obesity and metabolic dysfunction-associated steatohepatitis. It is also developing HepTcell, an immunotherapeutic product candidate, which is in Phase 2 clinical trial for patients chronically infected with the hepatitis B virus. The company was formerly known as Vaxin Inc. and changed its name to Altimmune, Inc. in September 2015. Altimmune, Inc. was founded in 1997 is headquartered in Gaithersburg, Maryland.
Read More on Altimmune

Today's Range

Now: $5.31
Low: $5.00
High: $5.46

50 Day Range

MA: $4.24
Low: $3.75
High: $5.31

52 Week Range

Now: $5.31
Low: $2.90
High: $10.11

Volume

3,102,451 shs

Average Volume

3,239,259 shs

Market Capitalization

$554.05 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Altimmune?

Altimmune's top insider investors include:
  1. David Drutz (Director)
  2. Gregory L Weaver (CFO)
Learn More about top insider investors at Altimmune.

Who are the major institutional investors of Altimmune?

Altimmune's top institutional investors include:
  1. Vanguard Group Inc. — 7.22%
  2. Two Sigma Investments LP — 1.91%
  3. Susquehanna International Group LLP — 0.00%
  4. Squarepoint Ops LLC — 0.56%
  5. Beirne Wealth Consulting Services LLC — 0.47%
  6. Millennium Management LLC — 0.35%
Learn More about top institutional investors of Altimmune stock.

Which institutional investors are selling Altimmune stock?

Within the previous quarter, ALT stock was sold by these institutional investors:
  1. Citadel Advisors LLC
  2. Group One Trading LLC
  3. Bank of America Corp DE
  4. Virtu Financial LLC
  5. Dimensional Fund Advisors LP
  6. Centiva Capital LP
  7. IMC Chicago LLC
  8. Intech Investment Management LLC

Which institutional investors are buying Altimmune stock?

Within the previous quarter, ALT stock was bought by institutional investors including:
  1. Two Sigma Investments LP
  2. Vanguard Group Inc.
  3. Susquehanna International Group LLP
  4. Squarepoint Ops LLC
  5. Millennium Management LLC
  6. Caption Management LLC
  7. Brevan Howard Capital Management LP
  8. Beirne Wealth Consulting Services LLC