0001104659-20-071610.txt : 20200609 0001104659-20-071610.hdr.sgml : 20200609 20200609202808 ACCESSION NUMBER: 0001104659-20-071610 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20200608 FILED AS OF DATE: 20200609 DATE AS OF CHANGE: 20200609 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PRINS RICHARD K CENTRAL INDEX KEY: 0001047579 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 20953295 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Amphastar Pharmaceuticals, Inc. CENTRAL INDEX KEY: 0001297184 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 330702205 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 11570 SIXTH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 BUSINESS PHONE: 909-980-9484 MAIL ADDRESS: STREET 1: 11570 SIXTH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 4 1 a4.xml 4 X0306 4 2020-06-08 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001047579 PRINS RICHARD K C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 0 0 0 Common Stock 2020-06-08 4 A 0 5851 0 A 45160 D Stock Option (right to buy) 20.08 2020-06-08 4 A 0 16004 0 A 2028-06-08 Common Stock 16004 16004 D The reported shares are represented by restricted stock units, or RSUs, all of which vest on June 8, 2021. All of the shares subject to the option vest on June 8, 2021. /s/ Eva Wen, by power of attorney 2020-06-09