Amphastar Pharmaceuticals Director Michael Zasloff Receives Equity Awards

This Form 4 filing reports that Michael A. Zasloff, a director of Amphastar Pharmaceuticals, Inc., received equity awards on June 1, 2026. The awards include 8,143 restricted stock units (RSUs) that vest on June 1, 2027, and an option to purchase 17,365 shares of common stock at an exercise price of $18.42 per share, also vesting on June 1, 2027. The RSUs were granted at $0 per share, and following these transactions, Zasloff holds 37,667 shares directly and 17,365 shares through the option. The filing was signed by Eva Wen via power of attorney on June 3, 2026. These equity awards represent standard director compensation and align Zasloff's interests with shareholders through long-term equity incentives.