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
Stock Symbol
AMPH on Nasdaq
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by Jack Y. Zhang since 29 Dec 2024

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

Security Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock 6.83M $165M $24.11 13 Jun 2025 Indirect
Common Stock 2.85M $37.1M $13.03 13 Jun 2025 Direct
Employee Stock Option (right to buy) 205K 13 Jun 2025 Direct Common Stock
Employee Stock Option (right to buy) 0 14 Mar 2025 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.