Within the last three months, William J. Peters has sold $383,500.00 in shares of Amphastar Pharmaceuticals stock. Most recently, William J. Peters sold 10,000 shares of the business's stock in a transaction on Tuesday, August 9th. The shares were sold at an average price of $38.35, for a transaction totalling $383,500.00. Following the completion of the sale, the chief financial officer now directly owns 100,480 shares of the company's stock, valued at $3,853,408. Learn More on William J. Peters' trading history.