RICHARD K. PRINS - Director at Amphastar Pharmaceuticals, Inc.

Insider Transactions and Holdings

Entity Type
Individual
Role
Director
Stock Symbol
AMPH on Nasdaq
All Insider Reports
All Insider Reports

RICHARD K. PRINS - trading volume in the past year for Amphastar Pharmaceuticals, Inc.

Holdings reported by RICHARD K. PRINS for Amphastar Pharmaceuticals, Inc.

Security Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock 35.2K $953K $27.10 25 Nov 2025 Direct
Stock Option (right to buy) 0 25 Nov 2025 Direct Common Stock

Transactions reported by RICHARD K. PRINS 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.