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NASDAQ: ALT
Altimmune Inc Stock Ownership - Who owns Altimmune?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Altimmune Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
John GillDirector2026-04-069,200$3.41
$31.35kBuy
Gregory L. WeaverChief Financial Officer2026-04-0110,000$3.15
$31.50kBuy
Jerome Benedict DursoPresident and CEO2026-04-0115,000$3.14
$47.10kBuy
Jerome Benedict DursoPresident and CEO2026-03-0620,000$3.54
$70.78kBuy
Gregory L. WeaverChief Financial Officer2026-03-065,000$3.54
$17.70kBuy
M. Scot RobertsChief Scientific Officer2026-02-022,329$5.55
$12.93kSell
Raymond M. JordtChief Business Officer2026-01-314,571$3.07
$14.03kBuy
Vipin K. GargDirector2026-01-316,926$3.07
$21.26kBuy
M. Scot RobertsChief Scientific Officer2026-01-315,567$3.07
$17.09kBuy
Vipin K. GargDirector2026-01-3011,632$5.60
$65.14kSell

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Net Insider Buy/Sell (L12M) Ownership

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ALT Shareholders

What type of owners hold Altimmune Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Prescott Group Capital Management LLC10.20%19,837,273$62.49MInsider
Blackrock Inc6.58%12,795,277$40.31MInstitution
Novartis Bioventures Ltd4.29%8,345,145$26.29MInsider
State Street Corp3.67%7,145,550$22.51MInstitution
Mpm Bioventures III LLC3.26%6,347,614$19.99MInsider
Luke Evnin3.26%6,347,614$19.99MInsider
Vanguard Capital Management LLC2.91%5,658,049$17.82MInstitution
Vanguard Portfolio Management LLC2.77%5,382,002$16.95MInstitution
Healthcare Ventures VII LP2.25%4,378,057$13.79MInsider
Marshall Wace LLP2.07%4,017,901$12.66MInstitution

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ALT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALT35.67%32.64%Net BuyingNet Buying
PROK14.45%39.09%Net Selling
AGMB47.92%0.09%
SGP23.58%76.42%Net Buying
MDXG48.14%51.86%Net BuyingNet Buying
View Top Biotech Stocks

Altimmune Stock Ownership FAQ

Who owns Altimmune?

Altimmune (NASDAQ: ALT) is owned by 35.67% institutional shareholders, 32.64% Altimmune insiders, and 31.69% retail investors. Prescott Group Capital Management LLC is the largest individual Altimmune shareholder, owning 19.84M shares representing 10.20% of the company. Prescott Group Capital Management LLC's Altimmune shares are currently valued at $62.69M.

If you're new to stock investing, here's how to buy Altimmune stock.
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