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
Industry
Pharmaceutical Preparations
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by Jack Y. Zhang since 10/7/2024

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 Jun 13, 2025 Indirect
Common Stock 2.85M $37.1M $13.03 Jun 13, 2025 Direct
Employee Stock Option (right to buy) 205K Jun 13, 2025 Direct Common Stock
Employee Stock Option (right to buy) 0 Mar 14, 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.