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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
Christophe ArbetengelsMed2026-10-0112,679$2.76
$34.99kSell
Gregory L. WeaverCFO2026-10-014,379$2.76
$12.09kSell
Linda M. RichardsonCCO2026-09-166,826$3.24
$22.12kSell
Jerome Benedict DursoCEO;Pres2026-08-1315,000$2.95
$44.25kBuy
Gregory L. WeaverCFO2026-07-311,753$2.41
$4.23kBuy
M. Scot RobertsCSci2026-07-31875$2.41
$2.11kBuy
John GillDirector2026-04-069,200$3.41
$31.35kBuy
Jerome Benedict DursoPresident and CEO2026-04-0115,000$3.14
$47.10kBuy
Gregory L. WeaverChief Financial Officer2026-04-0110,000$3.15
$31.50kBuy
Jerome Benedict DursoPresident and CEO2026-03-0620,000$3.54
$70.78kBuy

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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$43.64MInsider
Novartis Bioventures Ltd4.29%8,345,145$18.36MInsider
Mpm Bioventures III LLC3.26%6,347,614$13.96MInsider
Luke Evnin3.26%6,347,614$13.96MInsider
Healthcare Ventures VII LP2.25%4,378,057$9.63MInsider
Venrock Healthcare Capital Partners III LP1.80%3,500,000$7.70MInsider
James H. Cavanaugh1.71%3,317,243$7.30MInsider
Velocity Pharmaceutical Holdings LLC0.87%1,687,250$3.71MInsider
Derace L. Schaffer0.83%1,619,557$3.56MInsider
Elizabeth Czerepak0.68%1,320,087$2.90MInsider

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ALT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALT0.08%32.67%Net BuyingNet Selling
YDES0.00%80.57%Net BuyingNet Buying
PRTA0.09%84.69%Net BuyingNet Buying
DMAC0.02%69.10%Net Buying
OVID0.08%9.54%Net Buying
View Top Biotech Stocks

Altimmune Stock Ownership FAQ

Who owns Altimmune?

Altimmune (NASDAQ: ALT) is owned by 0.08% institutional shareholders, 32.67% Altimmune insiders, and 67.25% 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 $44.24M.

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