Richardson Linda M bought ALT
September 16, 2026 · Form 4 insider transaction
Richardson Linda M bought 24,000 shares of Altimmune, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
24,000
Price
$0.00
Total value
N/A
InsiderRichardson Linda M
RoleOfficer
CompanyAltimmune, Inc. (ALT)
SecurityCommon Stock, par value $0.0001
Transaction codeM: Option exercise
Transaction dateSeptember 16, 2026
Filing dateSeptember 17, 2026
Shares owned after24,000
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested.