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ALT

Altimmune, Inc.

NASDAQ · Healthcare · Biotechnology · US

$2.04
−4.67%
Ask drillr
1
Insider buys (3m)
0
Insider sells (3m)
$44.3K
Net value (3m)
-27.8%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Oct 5, 2026WEAVER GREGORY L · officer: Chief Financial OfficerM-Exempt14,475$0.00
Oct 5, 2026Arbet-Engels Christophe · officer: Chief Medical OfficerF-InKind12,679$2.76
Oct 5, 2026Arbet-Engels Christophe · officer: Chief Medical OfficerM-Exempt37,500$0.00
Oct 5, 2026WEAVER GREGORY L · officer: Chief Financial OfficerF-InKind4,379$2.76
Oct 2, 2026MENZIUSO RICHARD THOMAS · officer: Principal Accounting OfficerA-Award36,234$0.00
Oct 2, 2026MENZIUSO RICHARD THOMAS · officer: Principal Accounting OfficerA-Award84,546$2.76
Sep 17, 2026Richardson Linda M · officer: Chief Commercial OfficerM-Exempt24,000$0.00
Sep 17, 2026Richardson Linda M · officer: Chief Commercial OfficerF-InKind6,826$3.24
Aug 13, 2026Durso Jerome Benedict · director, officer: President and CEOPurchase15,000$2.95
Aug 3, 2026Roberts M Scot · officer: Chief Scientific OfficerA-Award875$2.41
Aug 3, 2026WEAVER GREGORY L · officer: Chief Financial OfficerA-Award1,753$2.41
May 1, 2026Schafer Klaus · directorA-Award48,800$2.82
May 1, 2026Lawver Teri L · directorA-Award48,800$2.82
May 1, 2026SAYARE MITCHEL · directorA-Award48,800$2.82
May 1, 2026Jorkasky Diane · directorA-Award48,800$2.82
May 1, 2026Pisano Wayne · directorA-Award48,800$2.82
May 1, 2026Hodges Philip · directorA-Award48,800$2.82
May 1, 2026Sohn Catherine A. · directorA-Award48,800$2.82
May 1, 2026GILL JOHN · directorA-Award48,800$2.82
Apr 6, 2026GILL JOHN · directorPurchase9,200$3.41
Mar 9, 2026WEAVER GREGORY L · officer: Chief Financial OfficerPurchase5,000$3.54
Mar 9, 2026Durso Jerome Benedict · director, officer: President and CEOPurchase20,000$3.54
Feb 27, 2026WEAVER GREGORY L · officer: Chief Financial OfficerA-Award111,000$0.00
Feb 27, 2026WEAVER GREGORY L · officer: Chief Financial OfficerA-Award259,000$4.46
Feb 27, 2026Roberts M Scot · officer: Chief Scientific OfficerA-Award95,430$0.00
Feb 27, 2026Roberts M Scot · officer: Chief Scientific OfficerA-Award222,670$4.46
Feb 3, 2026Roberts M Scot · officer: Chief Scientific OfficerM-Exempt7,775$0.00
Feb 3, 2026Roberts M Scot · officer: Chief Scientific OfficerA-Award5,567$3.07
Feb 3, 2026Roberts M Scot · officer: Chief Scientific OfficerF-InKind2,859$5.60
Feb 3, 2026Roberts M Scot · officer: Chief Scientific OfficerF-InKind2,329$5.55
Institutional positioning

13F filings over the trailing two quarters

New 91Increased 162Reduced 79Sold out 26
FilerActionSharesFiled
BlackRock, Inc.Increased20,385,284Aug 7, 2026
Deep Track Capital, LPNew Position19,250,000Aug 14, 2026
BLACKROCK, INC.Increased12,795,277May 13, 2026
STATE STREET CORPIncreased12,098,540Sep 22, 2026
TCG Crossover Management, LLCNew Position10,000,000Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased8,177,752Aug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased7,330,265Aug 13, 2026
STATE STREET CORPIncreased7,145,550May 15, 2026
MARSHALL WACE, LLPIncreased6,841,055Aug 13, 2026
VIKING GLOBAL INVESTORS LPNew Position6,700,000Aug 14, 2026
RA CAPITAL MANAGEMENT, L.P.New Position6,500,000Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position5,658,049May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position5,382,002May 8, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased5,011,314Aug 12, 2026
MARSHALL WACE, LLPIncreased4,017,901May 15, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 5, 2026