Jack Y. Zhang - CEO & CHIEF SCIENTIFIC OFFICER, Director, 10%+ Owner at Amphastar Pharmaceuticals, Inc.

Insider Transactions and Holdings

Entity Type
Individual
Role
CEO & CHIEF SCIENTIFIC OFFICER, Director, 10%+ Owner
Issuer Symbol
AMPH on Nasdaq
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by Jack Y. Zhang since 11 Mar 2025

Holdings reported by Jack Y. Zhang for Amphastar Pharmaceuticals, Inc.

Security Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock 2,999,836 $85,765,311 $28.59 10 Mar 2026 Direct
Common Stock 1,248,033 $35,681,263 $28.59 10 Mar 2026 Indirect
Employee Stock Option (right to buy) 372,338 09 Mar 2026 Direct Common Stock
Employee Stock Option (right to buy) 149,472 09 Mar 2026 Indirect Common Stock

Transactions reported by Jack Y. Zhang for Amphastar Pharmaceuticals, Inc.

Sym Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.