Pierce Anthony T bought AMPH
July 9, 2026 · Form 4 insider transaction
Pierce Anthony T bought 16,646 shares of Amphastar Pharmaceuticals, 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 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
16,646
Price
$0.00
Total value
N/A
InsiderPierce Anthony T
RoleDirector
SecurityStock Option (right to buy)
Transaction codeA: Grant or award
Transaction dateJuly 9, 2026
Filing dateJuly 13, 2026
Shares owned after16,646
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
All of the shares subject to the option vest on July 9, 2027.