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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
Jerome Benedict DursoCEO;Pres2026-08-1315,000$2.95
$44.25kBuy
M. Scot RobertsCSci2026-07-31875$2.41
$2.11kBuy
Gregory L. WeaverCFO2026-07-311,753$2.41
$4.23kBuy
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
Gregory L. WeaverChief Financial Officer2026-03-065,000$3.54
$17.70kBuy
Jerome Benedict DursoPresident and CEO2026-03-0620,000$3.54
$70.78kBuy
M. Scot RobertsChief Scientific Officer2026-02-022,329$5.55
$12.93kSell
Raymond M. JordtChief Business Officer2026-01-314,571$3.07
$14.03kBuy

1 of 3

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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$58.92MInsider
Novartis Bioventures Ltd4.29%8,345,145$24.79MInsider
Mpm Bioventures III LLC3.26%6,347,614$18.85MInsider
Luke Evnin3.26%6,347,614$18.85MInsider
Healthcare Ventures VII LP2.25%4,378,057$13.00MInsider
Venrock Healthcare Capital Partners III LP1.80%3,500,000$10.40MInsider
James H. Cavanaugh1.71%3,317,243$9.85MInsider
Velocity Pharmaceutical Holdings LLC0.87%1,687,250$5.01MInsider
Derace L. Schaffer0.83%1,619,557$4.81MInsider
Elizabeth Czerepak0.68%1,320,087$3.92MInsider

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ALT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALT0.08%32.64%Net BuyingNet Buying
ARTV0.08%37.79%Net BuyingNet Buying
OABI0.04%22.94%Net Buying
OVID0.08%9.54%Net Buying
PRME0.06%63.21%
View Top Biotech Stocks

Altimmune Stock Ownership FAQ

Who owns Altimmune?

Altimmune (NASDAQ: ALT) is owned by 0.08% institutional shareholders, 32.64% Altimmune insiders, and 67.28% 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 $58.92M.

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