Amphastar Pharmaceuticals(AMPH) - 2025 Q2 - Quarterly Report

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ◻ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-36509 AMPHASTAR PHARMACEUTICALS, INC. (Exact name of Registrant as specified in its charter) Delaware 33-0702205 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 11570 6 th Street Rancho Cucamonga, CA 91730 (Address of ...