Richardson Linda M bought ALT
September 16, 2025 · Form 4 insider transaction
Richardson Linda M bought 278,000 shares of Altimmune, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
278,000
Price
$0.00
Total value
N/A
InsiderRichardson Linda M
Role—
CompanyAltimmune, Inc. (ALT)
SecurityStock Options (option to buy)
Transaction codeA: Grant or award
Transaction dateSeptember 16, 2025
Filing dateSeptember 17, 2025
Shares owned after278,000
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
The shares underlying the option become vested and exercisable over four (4) years with 25% of the shares vesting on September 16, 2026, with the remainder vesting in equal monthly installments for the following thirty-six (36) months, subject to the reporting person's continued service on each applicable vesting date.