Zhou Rong sold AMPH
December 17, 2025 · Form 4 insider transaction
Zhou Rong sold 9,787 shares of Amphastar Pharmaceuticals, Inc. at $26.20 per share, a transaction worth $256.4K. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Disposed (sell-side)
Shares
9,787
Price
$26.20
Total value
$256.4K
InsiderZhou Rong
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateDecember 17, 2025
Filing dateDecember 18, 2025
Shares owned after138,043
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.97 to $26.50, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.