Amphastar Pharmaceuticals(AMPH) - 2019 Q1 - Quarterly Report

Table of Contents | --- | --- | |--------------------------------------------------------------------------|-------------| | | | | UNITED STATES SECURITIES AND EXCHANGE Washington, D.C. 20549 | COMMISSION | | | FORM 10-Q | ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2019 or ◻ 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 00 ...